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FYI: Release 1.4.3 [m4--release--1.4--patch-2]


From: Gary V. Vaughan
Subject: FYI: Release 1.4.3 [m4--release--1.4--patch-2]
Date: Thu, 31 Mar 2005 12:51:26 +0100 (BST)
User-agent: mailnotify/0.6

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Applied to branch-1_4.

  * looking for address@hidden/m4--release--1.4--patch-1 to compare with
  * comparing to address@hidden/m4--release--1.4--patch-1
  A  .arch-ids/Makefile.maint.id
  A  Makefile.maint
  M  install-sh
  M  stamp-h.in
  M  ChangeLog
  M  INSTALL
  M  Makefile.in
  M  NEWS
  M  configure
  M  configure.ac
  M  doc/m4.info
  M  doc/stamp-vti
  M  doc/texinfo.tex
  M  doc/version.texi
  
  * modified files
  
  Index: Changelog
  from  Gary V. Vaughan  <address@hidden>  (tiny change)
  
        * configure.in (VERSION): Bump to 1.4.3.
        * News: Describe 1.4.3's changes.
        * Makefile.maint: New file with release rules, from CVS libtool.
        * Makefile.in (DISTFILES): Add Makefile.maint.
        * INSTALL, install-sh, doc/texinfo.tex: Updated to latest
        canonical versions.
  
  --- orig/INSTALL
  +++ mod/INSTALL
  @@ -1,27 +1,43 @@
  +Installation Instructions
  +*************************
  +
  +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005 Free
  +Software Foundation, Inc.
  +
  +This file is free documentation; the Free Software Foundation gives
  +unlimited permission to copy, distribute and modify it.
  +
   Basic Installation
   ==================
   
  -   These are generic installation instructions.
  +These are generic installation instructions.
   
      The `configure' shell script attempts to guess correct values for
   various system-dependent variables used during compilation.  It uses
   those values to create a `Makefile' in each directory of the package.
   It may also create one or more `.h' files containing system-dependent
   definitions.  Finally, it creates a shell script `config.status' that
  -you can run in the future to recreate the current configuration, a file
  -`config.cache' that saves the results of its tests to speed up
  -reconfiguring, and a file `config.log' containing compiler output
  -(useful mainly for debugging `configure').
  +you can run in the future to recreate the current configuration, and a
  +file `config.log' containing compiler output (useful mainly for
  +debugging `configure').
  +
  +   It can also use an optional file (typically called `config.cache'
  +and enabled with `--cache-file=config.cache' or simply `-C') that saves
  +the results of its tests to speed up reconfiguring.  (Caching is
  +disabled by default to prevent problems with accidental use of stale
  +cache files.)
   
      If you need to do unusual things to compile the package, please try
   to figure out how `configure' could check whether to do them, and mail
   diffs or instructions to the address given in the `README' so they can
  -be considered for the next release.  If at some point `config.cache'
  -contains results you don't want to keep, you may remove or edit it.
  -
  -   The file `configure.in' is used to create `configure' by a program
  -called `autoconf'.  You only need `configure.in' if you want to change
  -it or regenerate `configure' using a newer version of `autoconf'.
  +be considered for the next release.  If you are using the cache, and at
  +some point `config.cache' contains results you don't want to keep, you
  +may remove or edit it.
  +
  +   The file `configure.ac' (or `configure.in') is used to create
  +`configure' by a program called `autoconf'.  You only need
  +`configure.ac' if you want to change it or regenerate `configure' using
  +a newer version of `autoconf'.
   
   The simplest way to compile this package is:
   
  @@ -43,49 +59,65 @@
        documentation.
   
     5. You can remove the program binaries and object files from the
  -     source directory by typing `make clean'.  To also remove the files
  -     that `configure' created (so you can compile the package for a
  -     different kind of computer), type `make distclean'.
  +     source code directory by typing `make clean'.  To also remove the
  +     files that `configure' created (so you can compile the package for
  +     a different kind of computer), type `make distclean'.  There is
  +     also a `make maintainer-clean' target, but that is intended mainly
  +     for the package's developers.  If you use it, you may have to get
  +     all sorts of other programs in order to regenerate files that came
  +     with the distribution.
   
   Compilers and Options
   =====================
   
  -   Some systems require unusual options for compilation or linking that
  -the `configure' script does not know about.  You can give `configure'
  -initial values for variables by setting them in the environment.  Using
  -a Bourne-compatible shell, you can do that on the command line like
  -this:
  -     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
  -
  -Or on systems that have the `env' program, you can do it like this:
  -     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
  -
  -Using a Different Build Directory
  -=================================
  -
  -   You can compile the package in a different directory from the one
  -containing the source code.  Doing so allows you to compile it on more
  -than one kind of computer at the same time.  To do this, you must use a
  -version of `make' that supports the `VPATH' variable, such as GNU
  -`make'.  `cd' to the directory where you want the object files and
  -executables to go and run the `configure' script.  `configure'
  -automatically checks for the source code in the directory that
  -`configure' is in and in `..'.
  +Some systems require unusual options for compilation or linking that the
  +`configure' script does not know about.  Run `./configure --help' for
  +details on some of the pertinent environment variables.
  +
  +   You can give `configure' initial values for configuration parameters
  +by setting variables in the command line or in the environment.  Here
  +is an example:
  +
  +     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
  +
  +   *Note Defining Variables::, for more details.
  +
  +Compiling For Multiple Architectures
  +====================================
  +
  +You can compile the package for more than one kind of computer at the
  +same time, by placing the object files for each architecture in their
  +own directory.  To do this, you must use a version of `make' that
  +supports the `VPATH' variable, such as GNU `make'.  `cd' to the
  +directory where you want the object files and executables to go and run
  +the `configure' script.  `configure' automatically checks for the
  +source code in the directory that `configure' is in and in `..'.
  +
  +   If you have to use a `make' that does not support the `VPATH'
  +variable, you have to compile the package for one architecture at a
  +time in the source code directory.  After you have installed the
  +package for one architecture, use `make distclean' before reconfiguring
  +for another architecture.
   
   Installation Names
   ==================
   
  -   By default, `make install' will install the package's files in
  +By default, `make install' will install the package's files in
   `/usr/local/bin', `/usr/local/man', etc.  You can specify an
   installation prefix other than `/usr/local' by giving `configure' the
  -option `--prefix=PATH'.
  +option `--prefix=PREFIX'.
   
      You can specify separate installation prefixes for
   architecture-specific files and architecture-independent files.  If you
  -give `configure' the option `--exec-prefix=PATH', the package will use
  -PATH as the prefix for installing programs and libraries.
  +give `configure' the option `--exec-prefix=PREFIX', the package will
  +use PREFIX as the prefix for installing programs and libraries.
   Documentation and other data files will still use the regular prefix.
   
  +   In addition, if you use an unusual directory layout you can give
  +options like `--bindir=DIR' to specify different values for particular
  +kinds of files.  Run `configure --help' for a list of the directories
  +you can set and what kinds of files go in them.
  +
      If the package supports it, you can cause programs to be installed
   with an extra prefix or suffix on their names by giving `configure' the
   option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
  @@ -93,7 +125,7 @@
   Optional Features
   =================
   
  -   Some packages pay attention to `--enable-FEATURE' options to
  +Some packages pay attention to `--enable-FEATURE' options to
   `configure', where FEATURE indicates an optional part of the package.
   They may also pay attention to `--with-PACKAGE' options, where PACKAGE
   is something like `gnu-as' or `x' (for the X Window System).  The
  @@ -108,60 +140,97 @@
   Specifying the System Type
   ==========================
   
  -   There may be some features `configure' can not figure out
  -automatically, but needs to determine by the type of host the package
  -will run on.  Usually `configure' can figure that out, but if it prints
  -a message saying it can not guess the host type, give it the
  -`--host=TYPE' option.  TYPE can either be a short name for the system
  -type, such as `sun4', or a canonical name with three fields:
  +There may be some features `configure' cannot figure out automatically,
  +but needs to determine by the type of machine the package will run on.
  +Usually, assuming the package is built to be run on the _same_
  +architectures, `configure' can figure that out, but if it prints a
  +message saying it cannot guess the machine type, give it the
  +`--build=TYPE' option.  TYPE can either be a short name for the system
  +type, such as `sun4', or a canonical name which has the form:
  +
        CPU-COMPANY-SYSTEM
   
  -See the file `config.sub' for the possible values of each field.  If
  +where SYSTEM can have one of these forms:
  +
  +     OS KERNEL-OS
  +
  +   See the file `config.sub' for the possible values of each field.  If
   `config.sub' isn't included in this package, then this package doesn't
  -need to know the host type.
  +need to know the machine type.
   
  -   If you are building compiler tools for cross-compiling, you can also
  +   If you are _building_ compiler tools for cross-compiling, you should
   use the `--target=TYPE' option to select the type of system they will
  -produce code for and the `--build=TYPE' option to select the type of
  -system on which you are compiling the package.
  +produce code for.
  +
  +   If you want to _use_ a cross compiler, that generates code for a
  +platform different from the build platform, you should specify the
  +"host" platform (i.e., that on which the generated programs will
  +eventually be run) with `--host=TYPE'.
   
   Sharing Defaults
   ================
   
  -   If you want to set default values for `configure' scripts to share,
  -you can create a site shell script called `config.site' that gives
  -default values for variables like `CC', `cache_file', and `prefix'.
  +If you want to set default values for `configure' scripts to share, you
  +can create a site shell script called `config.site' that gives default
  +values for variables like `CC', `cache_file', and `prefix'.
   `configure' looks for `PREFIX/share/config.site' if it exists, then
   `PREFIX/etc/config.site' if it exists.  Or, you can set the
   `CONFIG_SITE' environment variable to the location of the site script.
   A warning: not all `configure' scripts look for a site script.
   
  -Operation Controls
  +Defining Variables
   ==================
   
  -   `configure' recognizes the following options to control how it
  -operates.
  +Variables not defined in a site shell script can be set in the
  +environment passed to `configure'.  However, some packages may run
  +configure again during the build, and the customized values of these
  +variables may be lost.  In order to avoid this problem, you should set
  +them in the `configure' command line, using `VAR=value'.  For example:
   
  -`--cache-file=FILE'
  -     Save the results of the tests in FILE instead of `config.cache'.
  -     Set FILE to `/dev/null' to disable caching, for debugging
  -     `configure'.
  +     ./configure CC=/usr/local2/bin/gcc
  +
  +causes the specified `gcc' to be used as the C compiler (unless it is
  +overridden in the site shell script).  Here is a another example:
  +
  +     /bin/bash ./configure CONFIG_SHELL=/bin/bash
  +
  +Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent
  +configuration-related scripts to be executed by `/bin/bash'.
  +
  +`configure' Invocation
  +======================
  +
  +`configure' recognizes the following options to control how it operates.
   
   `--help'
  +`-h'
        Print a summary of the options to `configure', and exit.
   
  +`--version'
  +`-V'
  +     Print the version of Autoconf used to generate the `configure'
  +     script, and exit.
  +
  +`--cache-file=FILE'
  +     Enable the cache: use and save the results of the tests in FILE,
  +     traditionally `config.cache'.  FILE defaults to `/dev/null' to
  +     disable caching.
  +
  +`--config-cache'
  +`-C'
  +     Alias for `--cache-file=config.cache'.
  +
   `--quiet'
   `--silent'
   `-q'
  -     Do not print messages saying which checks are being made.
  +     Do not print messages saying which checks are being made.  To
  +     suppress all normal output, redirect it to `/dev/null' (any error
  +     messages will still be shown).
   
   `--srcdir=DIR'
        Look for the package's source code in directory DIR.  Usually
        `configure' can determine that directory automatically.
   
  -`--version'
  -     Print the version of Autoconf used to generate the `configure'
  -     script, and exit.
  -
  -`configure' also accepts some other, not widely useful, options.
  +`configure' also accepts some other, not widely useful, options.  Run
  +`configure --help' for more details.
   
  
  
  --- orig/Makefile.in
  +++ mod/Makefile.in
  @@ -50,7 +50,7 @@
   SUBDIRS = doc lib src checks examples
   
   DISTFILES = README NEWS TODO THANKS COPYING INSTALL ChangeLog c-boxes.el \
  -configure.ac aclocal.m4 mkinstalldirs install-sh Makefile.in \
  +configure.ac aclocal.m4 mkinstalldirs install-sh Makefile.in Makefile.maint \
   stamp-h.in config-h.in configure BACKLOG
   
   .SUFFIXES:
  
  
  --- orig/NEWS
  +++ mod/NEWS
  @@ -1,8 +1,9 @@
   GNU m4 NEWS - User visible changes.
   Copyright (C) 1992, 1993, 1994, 2004, 2005 Free Software Foundation, Inc.
   
  -Version 1.4.3 - ??? 2005, by ???
  +Version 1.4.3 - March 2005, by Gary V. Vaughan
   
  +* DESTDIR installs now work correctly.
   * Don't segfault with uncompilable regexps to changeword().
   * Always use \n line-endings for frozen files (fixes a cygwin bug).
   * Portability fix for systems lacking mkstemp(3).
  
  
  --- orig/configure
  +++ mod/configure
  @@ -1,6 +1,6 @@
   #! /bin/sh
   # Guess values for system-dependent variables and create Makefiles.
  -# Generated by GNU Autoconf 2.59 for GNU M4 1.4.2a.
  +# Generated by GNU Autoconf 2.59 for GNU M4 1.4.3.
   #
   # Report bugs to <address@hidden>.
   #
  @@ -269,8 +269,8 @@
   # Identity of this package.
   PACKAGE_NAME='GNU M4'
   PACKAGE_TARNAME='m4'
  -PACKAGE_VERSION='1.4.2a'
  -PACKAGE_STRING='GNU M4 1.4.2a'
  +PACKAGE_VERSION='1.4.3'
  +PACKAGE_STRING='GNU M4 1.4.3'
   PACKAGE_BUGREPORT='address@hidden'
   
   ac_unique_file="src/m4.h"
  @@ -780,7 +780,7 @@
     # Omit some internal or obsolete options to make the list less imposing.
     # This message is too long to be a string in the A/UX 3.1 sh.
     cat <<_ACEOF
  -\`configure' configures GNU M4 1.4.2a to adapt to many kinds of systems.
  +\`configure' configures GNU M4 1.4.3 to adapt to many kinds of systems.
   
   Usage: $0 [OPTION]... [VAR=VALUE]...
   
  @@ -842,7 +842,7 @@
   
   if test -n "$ac_init_help"; then
     case $ac_init_help in
  -     short | recursive ) echo "Configuration of GNU M4 1.4.2a:";;
  +     short | recursive ) echo "Configuration of GNU M4 1.4.3:";;
      esac
     cat <<\_ACEOF
   
  @@ -965,7 +965,7 @@
   test -n "$ac_init_help" && exit 0
   if $ac_init_version; then
     cat <<\_ACEOF
  -GNU M4 configure 1.4.2a
  +GNU M4 configure 1.4.3
   generated by GNU Autoconf 2.59
   
   Copyright (C) 2003 Free Software Foundation, Inc.
  @@ -979,7 +979,7 @@
   This file contains any messages produced by compilers while
   running configure, to aid debugging if configure makes a mistake.
   
  -It was created by GNU M4 $as_me 1.4.2a, which was
  +It was created by GNU M4 $as_me 1.4.3, which was
   generated by GNU Autoconf 2.59.  Invocation command line was
   
     $ $0 $@
  @@ -5601,7 +5601,7 @@
   } >&5
   cat >&5 <<_CSEOF
   
  -This file was extended by GNU M4 $as_me 1.4.2a, which was
  +This file was extended by GNU M4 $as_me 1.4.3, which was
   generated by GNU Autoconf 2.59.  Invocation command line was
   
     CONFIG_FILES    = $CONFIG_FILES
  @@ -5661,7 +5661,7 @@
   
   cat >>$CONFIG_STATUS <<_ACEOF
   ac_cs_version="\\
  -GNU M4 config.status 1.4.2a
  +GNU M4 config.status 1.4.3
   configured by $0, generated by GNU Autoconf 2.59,
     with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
   
  
  
  --- orig/configure.ac
  +++ mod/configure.ac
  @@ -17,7 +17,7 @@
   # 02111-1307  USA
   
   
  -AC_INIT([GNU M4], [1.4.2a], address@hidden)
  +AC_INIT([GNU M4], [1.4.3], address@hidden)
   PACKAGE=$PACKAGE_TARNAME; AC_SUBST(PACKAGE)
   VERSION=$PACKAGE_VERSION; AC_SUBST(VERSION)
   
  
  
  --- orig/doc/m4.info
  +++ mod/doc/m4.info
  @@ -5,7 +5,7 @@
   * m4: (m4).                  A powerful macro processor.
   END-INFO-DIR-ENTRY
   
  -   This file documents GNU M4 1.4.2a.
  +   This file documents GNU M4 1.4.3.
   
      Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 2004, 2005 Free
   Software Foundation, Inc.
  @@ -42,7 +42,7 @@
   names and email addresses can be found in the file `THANKS' from the
   GNU `m4' distribution.
   
  -   This is release 1.4.2a.  It is now to be considered stable, future
  +   This is release 1.4.3.  It is now to be considered stable, future
   releases are only meant to fix bugs, increase speed, or improve
   documentation.  However...
   
  @@ -3120,81 +3120,81 @@
   
   
   Tag Table:
  -Node: Top985
  -Node: Preliminaries6984
  -Node: Intro7710
  -Node: History9324
  -Node: Invoking m410250
  -Node: Bugs17051
  -Node: Manual18324
  -Node: Syntax19695
  -Node: Names20283
  -Node: Quoted strings20661
  -Node: Other tokens21251
  -Node: Comments21473
  -Node: Macros22141
  -Node: Invocation22635
  -Node: Inhibiting Invocation23451
  -Node: Macro Arguments26602
  -Node: Quoting Arguments27871
  -Node: Macro expansion28681
  -Node: Definitions29349
  -Node: Define30126
  -Node: Arguments30942
  -Node: Pseudo Arguments32427
  -Node: Undefine34283
  -Node: Defn34950
  -Node: Pushdef36112
  -Node: Indir37953
  -Node: Builtin38722
  -Node: Conditionals39173
  -Node: Ifdef39881
  -Node: Ifelse40655
  -Node: Loops42426
  -Node: Debugging45703
  -Node: Dumpdef46283
  -Node: Trace47137
  -Node: Debug Levels48522
  -Node: Debug Output50912
  -Node: Input Control51439
  -Node: Dnl51977
  -Node: Changequote53109
  -Node: Changecom54480
  -Node: Changeword55771
  -Node: M4wrap58988
  -Node: File Inclusion60197
  -Node: Include60514
  -Node: Search Path62449
  -Node: Diversions63240
  -Node: Divert64478
  -Node: Undivert65615
  -Node: Divnum67554
  -Node: Cleardiv68104
  -Node: Text handling69145
  -Node: Len69868
  -Node: Index70273
  -Node: Regexp70865
  -Node: Substr71963
  -Node: Translit72590
  -Node: Patsubst74040
  -Node: Format76140
  -Node: Arithmetic77636
  -Node: Incr78084
  -Node: Eval78595
  -Node: UNIX commands81601
  -Node: Syscmd82075
  -Node: Esyscmd82796
  -Node: Sysval83749
  -Node: Maketemp84163
  -Node: Miscellaneous84913
  -Node: Errprint85285
  -Node: M4exit86287
  -Node: Frozen files87081
  -Node: Compatibility92004
  -Node: Extensions92625
  -Node: Incompatibilities94988
  -Node: Other Incompat95437
  -Node: Concept index97607
  -Node: Macro index107458
  +Node: Top984
  +Node: Preliminaries6982
  +Node: Intro7708
  +Node: History9322
  +Node: Invoking m410248
  +Node: Bugs17049
  +Node: Manual18322
  +Node: Syntax19693
  +Node: Names20281
  +Node: Quoted strings20659
  +Node: Other tokens21249
  +Node: Comments21471
  +Node: Macros22139
  +Node: Invocation22633
  +Node: Inhibiting Invocation23449
  +Node: Macro Arguments26600
  +Node: Quoting Arguments27869
  +Node: Macro expansion28679
  +Node: Definitions29347
  +Node: Define30124
  +Node: Arguments30940
  +Node: Pseudo Arguments32425
  +Node: Undefine34281
  +Node: Defn34948
  +Node: Pushdef36110
  +Node: Indir37951
  +Node: Builtin38720
  +Node: Conditionals39171
  +Node: Ifdef39879
  +Node: Ifelse40653
  +Node: Loops42424
  +Node: Debugging45701
  +Node: Dumpdef46281
  +Node: Trace47135
  +Node: Debug Levels48520
  +Node: Debug Output50910
  +Node: Input Control51437
  +Node: Dnl51975
  +Node: Changequote53107
  +Node: Changecom54478
  +Node: Changeword55769
  +Node: M4wrap58986
  +Node: File Inclusion60195
  +Node: Include60512
  +Node: Search Path62447
  +Node: Diversions63238
  +Node: Divert64476
  +Node: Undivert65613
  +Node: Divnum67552
  +Node: Cleardiv68102
  +Node: Text handling69143
  +Node: Len69866
  +Node: Index70271
  +Node: Regexp70863
  +Node: Substr71961
  +Node: Translit72588
  +Node: Patsubst74038
  +Node: Format76138
  +Node: Arithmetic77634
  +Node: Incr78082
  +Node: Eval78593
  +Node: UNIX commands81599
  +Node: Syscmd82073
  +Node: Esyscmd82794
  +Node: Sysval83747
  +Node: Maketemp84161
  +Node: Miscellaneous84911
  +Node: Errprint85283
  +Node: M4exit86285
  +Node: Frozen files87079
  +Node: Compatibility92002
  +Node: Extensions92623
  +Node: Incompatibilities94986
  +Node: Other Incompat95435
  +Node: Concept index97605
  +Node: Macro index107456
   
   End Tag Table
  
  
  --- orig/doc/stamp-vti
  +++ mod/doc/stamp-vti
  @@ -1 +1 @@
  -Thu Mar 31 12:17:04 BST 2005
  +Thu Mar 31 12:31:58 BST 2005
  
  
  --- orig/doc/texinfo.tex
  +++ mod/doc/texinfo.tex
  @@ -1,182 +1,387 @@
  -%% TeX macros to handle texinfo files
  -
  -%   Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 1994 Free Software 
Foundation, Inc.
  -
  -%This texinfo.tex file is free software; you can redistribute it and/or
  -%modify it under the terms of the GNU General Public License as
  -%published by the Free Software Foundation; either version 2, or (at
  -%your option) any later version.
  -
  -%This texinfo.tex file is distributed in the hope that it will be
  -%useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  -%of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  -%General Public License for more details.
  -
  -%You should have received a copy of the GNU General Public License
  -%along with this texinfo.tex file; see the file COPYING.  If not, write
  -%to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
  -%USA.
  -
  -
  -%In other words, you are welcome to use, share and improve this program.
  -%You are forbidden to forbid anyone else to use, share and improve
  -%what you give them.   Help stamp out software-hoarding!
  -
  -% This automatically updates the version number based on RCS.
  -\def\deftexinfoversion$#1: #2 ${\def\texinfoversion{#2}}
  -\deftexinfoversion$Revision: 1.1.1.1.2.2 $
  -\message{Loading texinfo package [Version \texinfoversion]:}
  +% texinfo.tex -- TeX macros to handle Texinfo files.
  +%
  +% Load plain if necessary, i.e., if running under initex.
  +\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
  +%
  +\def\texinfoversion{2005-03-21.17}
  +%
  +% Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
  +% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software
  +% Foundation, Inc.
  +%
  +% This texinfo.tex file is free software; you can redistribute it and/or
  +% modify it under the terms of the GNU General Public License as
  +% published by the Free Software Foundation; either version 2, or (at
  +% your option) any later version.
  +%
  +% This texinfo.tex file is distributed in the hope that it will be
  +% useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  +% of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  +% General Public License for more details.
  +%
  +% You should have received a copy of the GNU General Public License
  +% along with this texinfo.tex file; see the file COPYING.  If not, write
  +% to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  +% Boston, MA 02111-1307, USA.
  +%
  +% As a special exception, when this file is read by TeX when processing
  +% a Texinfo source document, you may use the result without
  +% restriction.  (This has been our intent since Texinfo was invented.)
  +%
  +% Please try the latest version of texinfo.tex before submitting bug
  +% reports; you can get the latest version from:
  +%   http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
  +%   ftp://tug.org/tex/texinfo.tex
  +%     (and all CTAN mirrors, see http://www.ctan.org).
  +% The texinfo.tex in any given distribution could well be out
  +% of date, so if that's what you're using, please check.
  +%
  +% Send bug reports to address@hidden  Please include including a
  +% complete document in each bug report with which we can reproduce the
  +% problem.  Patches are, of course, greatly appreciated.
  +%
  +% To process a Texinfo manual with TeX, it's most reliable to use the
  +% texi2dvi shell script that comes with the distribution.  For a simple
  +% manual foo.texi, however, you can get away with this:
  +%   tex foo.texi
  +%   texindex foo.??
  +%   tex foo.texi
  +%   tex foo.texi
  +%   dvips foo.dvi -o  # or whatever; this makes foo.ps.
  +% The extra TeX runs get the cross-reference information correct.
  +% Sometimes one run after texindex suffices, and sometimes you need more
  +% than two; texi2dvi does it as many times as necessary.
  +%
  +% It is possible to adapt texinfo.tex for other languages, to some
  +% extent.  You can get the existing language-specific files from the
  +% full Texinfo distribution.
  +%
  +% The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
  +
  +
  +\message{Loading texinfo [version \texinfoversion]:}
  +
  +% If in a .fmt file, print the version number
  +% and turn on active characters that we couldn't do earlier because
  +% they might have appeared in the input file name.
  +\everyjob{\message{[Texinfo version \texinfoversion]}%
  +  \catcode`+=\active \catcode`\_=\active}
   
  -% Print the version number if in a .fmt file.
  -\everyjob{\message{[Texinfo version \texinfoversion]}\message{}}
  +\message{Basics,}
  +\chardef\other=12
   
  -% Save some parts of plain tex whose names we will redefine.
  +% We never want plain's \outer definition of \+ in Texinfo.
  +% For @tex, we can use \tabalign.
  +\let\+ = \relax
   
  -\let\ptextilde=\~
  -\let\ptexlbrace=\{
  -\let\ptexrbrace=\}
  -\let\ptexdots=\dots
  -\let\ptexdot=\.
  -\let\ptexstar=\*
  -\let\ptexend=\end
  -\let\ptexbullet=\bullet
  +% Save some plain tex macros whose names we will redefine.
   \let\ptexb=\b
  +\let\ptexbullet=\bullet
   \let\ptexc=\c
  +\let\ptexcomma=\,
  +\let\ptexdot=\.
  +\let\ptexdots=\dots
  +\let\ptexend=\end
  +\let\ptexequiv=\equiv
  +\let\ptexexclam=\!
  +\let\ptexfootnote=\footnote
  +\let\ptexgtr=>
  +\let\ptexhat=^
   \let\ptexi=\i
  +\let\ptexindent=\indent
  +\let\ptexinsert=\insert
  +\let\ptexlbrace=\{
  +\let\ptexless=<
  +\let\ptexnewwrite\newwrite
  +\let\ptexnoindent=\noindent
  +\let\ptexplus=+
  +\let\ptexrbrace=\}
  +\let\ptexslash=\/
  +\let\ptexstar=\*
   \let\ptext=\t
  -\let\ptexl=\l
  -\let\ptexL=\L
  -
  -% Be sure we're in horizontal mode when doing a tie, since we make space
  -% equivalent to this in @example-like environments. Otherwise, a space
  -% at the beginning of a line will start with \penalty -- and
  -% since \penalty is valid in vertical mode, we'd end up putting the
  -% penalty on the vertical list instead of in the new paragraph.
  -{\catcode`@ = 11
  - address@hidden }
  -}
  -\let\~ = \tie                  % And make it available as @~.
  -
  -\message{Basics,}
  -\chardef\other=12
   
   % If this character appears in an error message or help string, it
   % starts a new line in the output.
   \newlinechar = `^^J
   
  -% Set up fixed words for English.
  -\ifx\putwordChapter\undefined{\gdef\putwordChapter{Chapter}}\fi%
  -\def\putwordInfo{Info}%
  -\ifx\putwordSee\undefined{\gdef\putwordSee{See}}\fi%
  -\ifx\putwordsee\undefined{\gdef\putwordsee{see}}\fi%
  -\ifx\putwordfile\undefined{\gdef\putwordfile{file}}\fi%
  -\ifx\putwordpage\undefined{\gdef\putwordpage{page}}\fi%
  -\ifx\putwordsection\undefined{\gdef\putwordsection{section}}\fi%
  -\ifx\putwordSection\undefined{\gdef\putwordSection{Section}}\fi%
  -\ifx\putwordTableofContents\undefined{\gdef\putwordTableofContents{Table of 
Contents}}\fi%
  -\ifx\putwordShortContents\undefined{\gdef\putwordShortContents{Short 
Contents}}\fi%
  -\ifx\putwordAppendix\undefined{\gdef\putwordAppendix{Appendix}}\fi%
  +% Use TeX 3.0's \inputlineno to get the line number, for better error
  +% messages, but if we're using an old version of TeX, don't do anything.
  +%
  +\ifx\inputlineno\thisisundefined
  +  \let\linenumber = \empty % Pre-3.0.
  +\else
  +  \def\linenumber{l.\the\inputlineno:\space}
  +\fi
  +
  +% Set up fixed words for English if not already set.
  +\ifx\putwordAppendix\undefined  \gdef\putwordAppendix{Appendix}\fi
  +\ifx\putwordChapter\undefined   \gdef\putwordChapter{Chapter}\fi
  +\ifx\putwordfile\undefined      \gdef\putwordfile{file}\fi
  +\ifx\putwordin\undefined        \gdef\putwordin{in}\fi
  +\ifx\putwordIndexIsEmpty\undefined     \gdef\putwordIndexIsEmpty{(Index is 
empty)}\fi
  +\ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index 
is nonexistent)}\fi
  +\ifx\putwordInfo\undefined      \gdef\putwordInfo{Info}\fi
  +\ifx\putwordInstanceVariableof\undefined 
\gdef\putwordInstanceVariableof{Instance Variable of}\fi
  +\ifx\putwordMethodon\undefined  \gdef\putwordMethodon{Method on}\fi
  +\ifx\putwordNoTitle\undefined   \gdef\putwordNoTitle{No Title}\fi
  +\ifx\putwordof\undefined        \gdef\putwordof{of}\fi
  +\ifx\putwordon\undefined        \gdef\putwordon{on}\fi
  +\ifx\putwordpage\undefined      \gdef\putwordpage{page}\fi
  +\ifx\putwordsection\undefined   \gdef\putwordsection{section}\fi
  +\ifx\putwordSection\undefined   \gdef\putwordSection{Section}\fi
  +\ifx\putwordsee\undefined       \gdef\putwordsee{see}\fi
  +\ifx\putwordSee\undefined       \gdef\putwordSee{See}\fi
  +\ifx\putwordShortTOC\undefined  \gdef\putwordShortTOC{Short Contents}\fi
  +\ifx\putwordTOC\undefined       \gdef\putwordTOC{Table of Contents}\fi
  +%
  +\ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
  +\ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
  +\ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
  +\ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
  +\ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
  +\ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
  +\ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
  +\ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
  +\ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
  +\ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
  +\ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
  +\ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
  +%
  +\ifx\putwordDefmac\undefined    \gdef\putwordDefmac{Macro}\fi
  +\ifx\putwordDefspec\undefined   \gdef\putwordDefspec{Special Form}\fi
  +\ifx\putwordDefvar\undefined    \gdef\putwordDefvar{Variable}\fi
  +\ifx\putwordDefopt\undefined    \gdef\putwordDefopt{User Option}\fi
  +\ifx\putwordDeffunc\undefined   \gdef\putwordDeffunc{Function}\fi
  +
  +% In some macros, we cannot use the `\? notation---the left quote is
  +% in some cases the escape char.
  +\chardef\backChar  = `\\
  +\chardef\colonChar = `\:
  +\chardef\commaChar = `\,
  +\chardef\dotChar   = `\.
  +\chardef\exclamChar= `\!
  +\chardef\plusChar  = `\+
  +\chardef\questChar = `\?
  +\chardef\semiChar  = `\;
  +\chardef\underChar = `\_
  +
  +\chardef\spaceChar = `\ %
  +\chardef\spacecat = 10
  +\def\spaceisspace{\catcode\spaceChar=\spacecat}
  +
  +{% for help with debugging.
  + % example usage: \expandafter\show\activebackslash
  + \catcode`\! = 0 \catcode`\\ = \active
  + !global!def!activebackslash{\}
  +}
   
   % Ignore a token.
   %
   \def\gobble#1{}
   
  -\hyphenation{ap-pen-dix}
  -\hyphenation{mini-buf-fer mini-buf-fers}
  -\hyphenation{eshell}
  +% The following is used inside several \edef's.
  +\def\makecsname#1{\expandafter\noexpand\csname#1\endcsname}
  +
  +% Hyphenation fixes.
  +\hyphenation{
  +  Flor-i-da Ghost-script Ghost-view Mac-OS Post-Script
  +  ap-pen-dix bit-map bit-maps
  +  data-base data-bases eshell fall-ing half-way long-est man-u-script
  +  man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm
  +  par-a-digms rath-er rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces
  +  spell-ing spell-ings
  +  stand-alone strong-est time-stamp time-stamps which-ever white-space
  +  wide-spread wrap-around
  +}
   
   % Margin to add to right of even pages, to left of odd pages.
  -\newdimen \bindingoffset  \bindingoffset=0pt
  -\newdimen \normaloffset   \normaloffset=\hoffset
  +\newdimen\bindingoffset
  +\newdimen\normaloffset
   \newdimen\pagewidth \newdimen\pageheight
  -\pagewidth=\hsize \pageheight=\vsize
  +
  +% For a final copy, take out the rectangles
  +% that mark overfull boxes (in case you have decided
  +% that the text looks ok even though it passes the margin).
  +%
  +\def\finalout{\overfullrule=0pt}
  +
  +% @| inserts a changebar to the left of the current line.  It should
  +% surround any changed text.  This approach does *not* work if the
  +% change spans more than two lines of output.  To handle that, we would
  +% have adopt a much more difficult approach (putting marks into the main
  +% vertical list for the beginning and end of each change).
  +%
  +\def\|{%
  +  % \vadjust can only be used in horizontal mode.
  +  \leavevmode
  +  %
  +  % Append this vertical mode material after the current line in the output.
  +  \vadjust{%
  +    % We want to insert a rule with the height and depth of the current
  +    % leading; that is exactly what \strutbox is supposed to record.
  +    \vskip-\baselineskip
  +    %
  +    % \vadjust-items are inserted at the left edge of the type.  So
  +    % the \llap here moves out into the left-hand margin.
  +    \llap{%
  +      %
  +      % For a thicker or thinner bar, change the `1pt'.
  +      \vrule height\baselineskip width1pt
  +      %
  +      % This is the space between the bar and the text.
  +      \hskip 12pt
  +    }%
  +  }%
  +}
   
   % Sometimes it is convenient to have everything in the transcript file
   % and nothing on the terminal.  We don't just call \tracingall here,
  -% since that produces some useless output on the terminal.
  +% since that produces some useless output on the terminal.  We also make
  +% some effort to order the tracing commands to reduce output in the log
  +% file; cf. trace.sty in LaTeX.
   %
   \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
  -\def\loggingall{\tracingcommands2 \tracingstats2
  -   \tracingpages1 \tracingoutput1 \tracinglostchars1
  -   \tracingmacros2 \tracingparagraphs1 \tracingrestores1
  -   \showboxbreadth\maxdimen\showboxdepth\maxdimen
  +\def\loggingall{%
  +  \tracingstats2
  +  \tracingpages1
  +  \tracinglostchars2  % 2 gives us more in etex
  +  \tracingparagraphs1
  +  \tracingoutput1
  +  \tracingmacros2
  +  \tracingrestores1
  +  \showboxbreadth\maxdimen \showboxdepth\maxdimen
  +  \ifx\eTeXversion\undefined\else % etex gives us more logging
  +    \tracingscantokens1
  +    \tracingifs1
  +    \tracinggroups1
  +    \tracingnesting2
  +    \tracingassigns1
  +  \fi
  +  \tracingcommands3  % 3 gives us more in etex
  +  \errorcontextlines16
   }%
   
  -%---------------------Begin change-----------------------
  +% add check for \lastpenalty to plain's definitions.  If the last thing
  +% we did was a \nobreak, we don't want to insert more space.
   %
  -%%%% For @cropmarks command.
  -% Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986
  -%
  -\newdimen\cornerlong \newdimen\cornerthick
  -\newdimen \topandbottommargin
  -\newdimen \outerhsize \newdimen \outervsize
  -\cornerlong=1pc\cornerthick=.3pt     % These set size of cropmarks
  -\outerhsize=7in
  -%\outervsize=9.5in
  -% Alternative @smallbook page size is 9.25in
  -\outervsize=9.25in
  -\topandbottommargin=.75in
  -%
  -%---------------------End change-----------------------
  +\def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
  +  \removelastskip\penalty-50\smallskip\fi\fi}
  +\def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
  +  \removelastskip\penalty-100\medskip\fi\fi}
  +\def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
  +  \removelastskip\penalty-200\bigskip\fi\fi}
  +
  +% For @cropmarks command.
  +% Do @cropmarks to get crop marks.
  +%
  +\newif\ifcropmarks
  +\let\cropmarks = \cropmarkstrue
  +%
  +% Dimensions to add cropmarks at corners.
  +% Added by P. A. MacKay, 12 Nov. 1986
  +%
  +\newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
  +\newdimen\cornerlong  \cornerlong=1pc
  +\newdimen\cornerthick \cornerthick=.3pt
  +\newdimen\topandbottommargin \topandbottommargin=.75in
  +
  +% Main output routine.
  +\chardef\PAGE = 255
  +\output = {\onepageout{\pagecontents\PAGE}}
  +
  +\newbox\headlinebox
  +\newbox\footlinebox
   
   % \onepageout takes a vbox as an argument.  Note that \pagecontents
  -% does insertions itself, but you have to call it yourself.
  -\chardef\PAGE=255  \output={\onepageout{\pagecontents\PAGE}}
  -\def\onepageout#1{\hoffset=\normaloffset
  -\ifodd\pageno  \advance\hoffset by \bindingoffset
  -\else \advance\hoffset by -\bindingoffset\fi
  -{\escapechar=`\\\relax % makes sure backslash is used in output files.
  -\shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}%
  -{\let\hsize=\pagewidth \makefootline}}}%
  -\advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
  -
  -%%%% For @cropmarks command %%%%
  -
  -% Here is a modification of the main output routine for Near East 
Publications
  -% This provides right-angle cropmarks at all four corners.
  -% The contents of the page are centerlined into the cropmarks,
  -% and any desired binding offset is added as an \hskip on either
  -% site of the centerlined box.  (P. A. MacKay, 12 November, 1986)
  -%
  -\def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up
  -{\escapechar=`\\\relax % makes sure backslash is used in output files.
  -              \shipout
  -              \vbox to \outervsize{\hsize=\outerhsize
  -                 \vbox{\line{\ewtop\hfill\ewtop}}
  -                 \nointerlineskip
  -                 \line{\vbox{\moveleft\cornerthick\nstop}
  -                       \hfill
  -                       \vbox{\moveright\cornerthick\nstop}}
  -                 \vskip \topandbottommargin
  -                 \centerline{\ifodd\pageno\hskip\bindingoffset\fi
  -                     \vbox{
  -                     {\let\hsize=\pagewidth \makeheadline}
  -                     \pagebody{#1}
  -                     {\let\hsize=\pagewidth \makefootline}}
  -                     \ifodd\pageno\else\hskip\bindingoffset\fi}
  -              \vskip \topandbottommargin plus1fill minus1fill
  -                 \boxmaxdepth\cornerthick
  -                 \line{\vbox{\moveleft\cornerthick\nsbot}
  -                       \hfill
  -                       \vbox{\moveright\cornerthick\nsbot}}
  -                 \nointerlineskip
  -                 \vbox{\line{\ewbot\hfill\ewbot}}
  -     }}
  +% does insertions, but you have to call it yourself.
  +\def\onepageout#1{%
  +  \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
  +  %
  +  \ifodd\pageno  \advance\hoffset by \bindingoffset
  +  \else \advance\hoffset by -\bindingoffset\fi
  +  %
  +  % Do this outside of the \shipout so @code etc. will be expanded in
  +  % the headline as they should be, not taken literally (outputting ''code).
  +  \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
  +  \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
  +  %
  +  {%
  +    % Have to do this stuff outside the \shipout because we want it to
  +    % take effect in \write's, yet the group defined by the \vbox ends
  +    % before the \shipout runs.
  +    %
  +    \escapechar = `\\     % use backslash in output files.
  +    \indexdummies         % don't expand commands in the output.
  +    \normalturnoffactive  % \ in index entries must not stay \, e.g., if
  +                   % the page break happens to be in the middle of an 
example.
  +    \shipout\vbox{%
  +      % Do this early so pdf references go to the beginning of the page.
  +      \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
  +      %
  +      \ifcropmarks \vbox to \outervsize\bgroup
  +        \hsize = \outerhsize
  +        \vskip-\topandbottommargin
  +        \vtop to0pt{%
  +          \line{\ewtop\hfil\ewtop}%
  +          \nointerlineskip
  +          \line{%
  +            \vbox{\moveleft\cornerthick\nstop}%
  +            \hfill
  +            \vbox{\moveright\cornerthick\nstop}%
  +          }%
  +          \vss}%
  +        \vskip\topandbottommargin
  +        \line\bgroup
  +          \hfil % center the page within the outer (page) hsize.
  +          \ifodd\pageno\hskip\bindingoffset\fi
  +          \vbox\bgroup
  +      \fi
  +      %
  +      \unvbox\headlinebox
  +      \pagebody{#1}%
  +      \ifdim\ht\footlinebox > 0pt
  +        % Only leave this space if the footline is nonempty.
  +        % (We lessened \vsize for it in \oddfootingxxx.)
  +        % The \baselineskip=24pt in plain's \makefootline has no effect.
  +        \vskip 2\baselineskip
  +        \unvbox\footlinebox
  +      \fi
  +      %
  +      \ifcropmarks
  +          \egroup % end of \vbox\bgroup
  +        \hfil\egroup % end of (centering) \line\bgroup
  +        \vskip\topandbottommargin plus1fill minus1fill
  +        \boxmaxdepth = \cornerthick
  +        \vbox to0pt{\vss
  +          \line{%
  +            \vbox{\moveleft\cornerthick\nsbot}%
  +            \hfill
  +            \vbox{\moveright\cornerthick\nsbot}%
  +          }%
  +          \nointerlineskip
  +          \line{\ewbot\hfil\ewbot}%
  +        }%
  +      \egroup % \vbox from first cropmarks clause
  +      \fi
  +    }% end of \shipout\vbox
  +  }% end of group with \normalturnoffactive
     \advancepageno
  -  \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
  -%
  -% Do @cropmarks to get crop marks
  -\def\cropmarks{\let\onepageout=\croppageout }
  +  \ifnum\outputpenalty>-20000 \else\dosupereject\fi
  +}
  +
  +\newinsert\margin \dimen\margin=\maxdimen
   
   \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
   {\catcode`\@ =11
   \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
  +% marginal hacks, address@hidden (Juha Takala)
  +\ifvoid\margin\else % marginal info is present
  +  \rlap{\kern\hsize\vbox address@hidden \vss}}\fi
   address@hidden \unvbox#1
   \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
   address@hidden \kern-\dimen@ \vfil \fi}
   }
   
  -%
   % Here are the rules for the cropmarks.  Note that they are
   % offset so that the space between them is truly \outerhsize or \outervsize
   % (P. A. MacKay, 12 November, 1986)
  @@ -192,149 +397,168 @@
   % the input line (except we remove a trailing comment).  #1 should be a
   % macro which expects an ordinary undelimited TeX argument.
   %
  -\def\parsearg#1{%
  -  \let\next = #1%
  +\def\parsearg{\parseargusing{}}
  +\def\parseargusing#1#2{%
  +  \def\next{#2}%
     \begingroup
       \obeylines
  -    \futurelet\temp\parseargx
  -}
  -
  -% If the next token is an obeyed space (from an @example environment or
  -% the like), remove it and recurse.  Otherwise, we're done.
  -\def\parseargx{%
  -  % \obeyedspace is defined far below, after the definition of \sepspaces.
  -  \ifx\obeyedspace\temp
  -    \expandafter\parseargdiscardspace
  -  \else
  -    \expandafter\parseargline
  -  \fi
  +    \spaceisspace
  +    #1%
  +    \parseargline\empty% Insert the \empty token, see \finishparsearg below.
   }
   
  -% Remove a single space (as the delimiter token to the macro call).
  -{\obeyspaces %
  - \gdef\parseargdiscardspace {\futurelet\temp\parseargx}}
  -
   {\obeylines %
     \gdef\parseargline#1^^M{%
       \endgroup % End of the group started in \parsearg.
  -    %
  -    % First remove any @c comment, then any @comment.
  -    % Result of each macro is put in \toks0.
  -    \argremovec #1\c\relax %
  -    \expandafter\argremovecomment \the\toks0 \comment\relax %
  -    %
  -    % Call the caller's macro, saved as \next in \parsearg.
  -    \expandafter\next\expandafter{\the\toks0}%
  +    \argremovecomment #1\comment\ArgTerm%
     }%
   }
   
  -% Since all \c{,omment} does is throw away the argument, we can let TeX
  -% do that for us.  The \relax here is matched by the \relax in the call
  -% in \parseargline; it could be more or less anything, its purpose is
  -% just to delimit the argument to the \c.
  -\def\argremovec#1\c#2\relax{\toks0 = {#1}}
  -\def\argremovecomment#1\comment#2\relax{\toks0 = {#1}}
  +% First remove any @comment, then any @c comment.
  +\def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
  +\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
   
  -% \argremovec{,omment} might leave us with trailing spaces, though; e.g.,
  +% Each occurence of `\^^M' or `<space>\^^M' is replaced by a single space.
  +%
  +% \argremovec might leave us with trailing space, e.g.,
   %    @end itemize  @c foo
  -% will have two active spaces as part of the argument with the
  -% `itemize'.  Here we remove all active spaces from #1, and assign the
  -% result to \toks0.
  -%
  -% This loses if there are any *other* active characters besides spaces
  -% in the argument -- _ ^ +, for example -- since they get expanded.
  -% Fortunately, Texinfo does not define any such commands.  (If it ever
  -% does, the catcode of the characters in questionwill have to be changed
  -% here.)  But this means we cannot call \removeactivespaces as part of
  -% \argremovec{,omment}, since @c uses \parsearg, and thus the argument
  -% that \parsearg gets might well have any character at all in it.
  +% This space token undergoes the same procedure and is eventually removed
  +% by \finishparsearg.
   %
  -\def\removeactivespaces#1{%
  -  \begingroup
  -    \ignoreactivespaces
  -    \edef\temp{#1}%
  -    \global\toks0 = \expandafter{\temp}%
  -  \endgroup
  +\def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M}
  +\def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M}
  +\def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{%
  +  \def\temp{#3}%
  +  \ifx\temp\empty
  +    % We cannot use \next here, as it holds the macro to run;
  +    % thus we reuse \temp.
  +    \let\temp\finishparsearg
  +  \else
  +    \let\temp\argcheckspaces
  +  \fi
  +  % Put the space token in:
  +  \temp#1 #3\ArgTerm
   }
   
  -% Change the active space to expand to nothing.
  +% If a _delimited_ argument is enclosed in braces, they get stripped; so
  +% to get _exactly_ the rest of the line, we had to prevent such situation.
  +% We prepended an \empty token at the very beginning and we expand it now,
  +% just before passing the control to \next.
  +% (Similarily, we have to think about #3 of \argcheckspacesY above: it is
  +% either the null string, or it ends with \^^M---thus there is no danger
  +% that a pair of braces would be stripped.
   %
  -\begingroup
  +% But first, we have to remove the trailing space token.
  +%
  +\def\finishparsearg#1 \ArgTerm{\expandafter\next\expandafter{#1}}
  +
  +% \parseargdef\foo{...}
  +%    is roughly equivalent to
  +% \def\foo{\parsearg\Xfoo}
  +% \def\Xfoo#1{...}
  +%
  +% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
  +% favourite TeX trick.  --kasal, 16nov03
  +
  +\def\parseargdef#1{%
  +  \expandafter \doparseargdef \csname\string#1\endcsname #1%
  +}
  +\def\doparseargdef#1#2{%
  +  \def#2{\parsearg#1}%
  +  \def#1##1%
  +}
  +
  +% Several utility definitions with active space:
  +{
     \obeyspaces
  -  \gdef\ignoreactivespaces{\obeyspaces\let =\empty}
  -\endgroup
  +  \gdef\obeyedspace{ }
  +
  +  % Make each space character in the input produce a normal interword
  +  % space in the output.  Don't allow a line break at this space, as this
  +  % is used only in environments like @example, where each line of input
  +  % should produce a line of output anyway.
  +  %
  +  \gdef\sepspaces{\obeyspaces\let =\tie}
  +
  +  % If an index command is used in an @example environment, any spaces
  +  % therein should become regular spaces in the raw index file, not the
  +  % expansion of \tie (\leavevmode \penalty address@hidden \ ).
  +  \gdef\unsepspaces{\let =\space}
  +}
   
   
   \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
   
  -%% These are used to keep @begin/@end levels from running away
  -%% Call \inENV within environments (after a \begingroup)
  -\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
  -\def\ENVcheck{%
  -\ifENV\errmessage{Still within an environment.  Type Return to continue.}
  -\endgroup\fi} % This is not perfect, but it should reduce lossage
  -
  -% @begin foo  is the same as @foo, for now.
  -\newhelp\EMsimple{Type <Return> to continue.}
  -
  -\outer\def\begin{\parsearg\beginxxx}
  -
  -\def\beginxxx #1{%
  -\expandafter\ifx\csname #1\endcsname\relax
  -{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
  -\csname #1\endcsname\fi}
  -
  -% @end foo executes the definition of \Efoo.
  +% Define the framework for environments in texinfo.tex.  It's used like this:
   %
  -\def\end{\parsearg\endxxx}
  -\def\endxxx #1{%
  -  \removeactivespaces{#1}%
  -  \edef\endthing{\the\toks0}%
  -  %
  -  \expandafter\ifx\csname E\endthing\endcsname\relax
  -    \expandafter\ifx\csname \endthing\endcsname\relax
  -      % There's no \foo, i.e., no ``environment'' foo.
  -      \errhelp = \EMsimple
  -      \errmessage{Undefined command address@hidden \endthing'}%
  -    \else
  -      \unmatchedenderror\endthing
  -    \fi
  +%   \envdef\foo{...}
  +%   \def\Efoo{...}
  +%
  +% It's the responsibility of \envdef to insert \begingroup before the
  +% actual body; @end closes the group after calling \Efoo.  \envdef also
  +% defines \thisenv, so the current environment is known; @end checks
  +% whether the environment name matches.  The \checkenv macro can also be
  +% used to check whether the current environment is the one expected.
  +%
  +% Non-false conditionals (@iftex, @ifset) don't fit into this, so they
  +% are not treated as enviroments; they don't open a group.  (The
  +% implementation of @end takes care not to call \endgroup in this
  +% special case.)
  +
  +
  +% At runtime, environments start with this:
  +\def\startenvironment#1{\begingroup\def\thisenv{#1}}
  +% initialize
  +\let\thisenv\empty
  +
  +% ... but they get defined via ``\envdef\foo{...}'':
  +\long\def\envdef#1#2{\def#1{\startenvironment#1#2}}
  +\def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}}
  +
  +% Check whether we're in the right environment:
  +\def\checkenv#1{%
  +  \def\temp{#1}%
  +  \ifx\thisenv\temp
     \else
  -    % Everything's ok; the right environment has been started.
  -    \csname E\endthing\endcsname
  +    \badenverr
     \fi
   }
   
  -% There is an environment #1, but it hasn't been started.  Give an error.
  -%
  -\def\unmatchedenderror#1{%
  +% Evironment mismatch, #1 expected:
  +\def\badenverr{%
     \errhelp = \EMsimple
  -  \errmessage{This address@hidden #1' doesn't have a matching 
address@hidden'}%
  +  \errmessage{This command can appear only \inenvironment\temp,
  +    not \inenvironment\thisenv}%
  +}
  +\def\inenvironment#1{%
  +  \ifx#1\empty
  +    out of any environment%
  +  \else
  +    in environment \expandafter\string#1%
  +  \fi
   }
   
  -% Define the control sequence \E#1 to give an unmatched @end error.
  +% @end foo executes the definition of \Efoo.
  +% But first, it executes a specialized version of \checkenv
   %
  -\def\defineunmatchedend#1{%
  -  \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}%
  +\parseargdef\end{%
  +  \if 1\csname iscond.#1\endcsname
  +  \else
  +    % The general wording of \badenverr may not be ideal, but... --kasal, 
06nov03
  +    \expandafter\checkenv\csname#1\endcsname
  +    \csname E#1\endcsname
  +    \endgroup
  +  \fi
   }
   
  +\newhelp\EMsimple{Press RETURN to continue.}
   
  -% Single-spacing is done by various environments (specifically, in
  -% \nonfillstart and \quotations).
  -\newskip\singlespaceskip \singlespaceskip = 12.5pt
  -\def\singlespace{%
  -  % Why was this kern here?  It messes up equalizing space above and below
  -  % environments.  --karl, 6may93
  -  %{\advance \baselineskip by -\singlespaceskip
  -  %\kern \baselineskip}%
  -  \setleading \singlespaceskip
  -}
   
   %% Simple single-character @ commands
   
   % @@ prints an @
   % Kludge this until the fonts are right (grr).
  address@hidden \char '100}}
  address@hidden
   
   % This is turned off because it was never documented
   % and you can use @w{...} around a quote to suppress ligatures.
  @@ -344,11 +568,82 @@
   %\def\'{{'}}
   
   % Used to generate quoted braces.
  -
  -\def\mylbrace {{\tt \char '173}}
  -\def\myrbrace {{\tt \char '175}}
  +\def\mylbrace {{\tt\char123}}
  +\def\myrbrace {{\tt\char125}}
   \let\{=\mylbrace
   \let\}=\myrbrace
  +\begingroup
  +  % Definitions to produce \{ and \} commands for indices,
  +  % and @{ and @} for the aux/toc files.
  +  \catcode`\{ = \other \catcode`\} = \other
  +  \catcode`\[ = 1 \catcode`\] = 2
  +  \catcode`\! = 0 \catcode`\\ = \other
  +  !gdef!lbracecmd[\{]%
  +  !gdef!rbracecmd[\}]%
  +  address@hidden
  +  address@hidden
  +!endgroup
  +
  +% @comma{} to avoid , parsing problems.
  +\let\comma = ,
  +
  +% Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
  +% Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H.
  +\let\, = \c
  +\let\dotaccent = \.
  +\def\ringaccent#1{{\accent23 #1}}
  +\let\tieaccent = \t
  +\let\ubaraccent = \b
  +\let\udotaccent = \d
  +
  +% Other special characters: @questiondown @exclamdown @ordf @ordm
  +% Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
  +\def\questiondown{?`}
  +\def\exclamdown{!`}
  +\def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}}
  +\def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}}
  +
  +% Dotless i and dotless j, used for accents.
  +\def\imacro{i}
  +\def\jmacro{j}
  +\def\dotless#1{%
  +  \def\temp{#1}%
  +  \ifx\temp\imacro \ptexi
  +  \else\ifx\temp\jmacro \j
  +  \else address@hidden can be used only with i or j}%
  +  \fi\fi
  +}
  +
  +% The \TeX{} logo, as in plain, but resetting the spacing so that a
  +% period following counts as ending a sentence.  (Idea found in latex.)
  +%
  +\edef\TeX{\TeX \spacefactor=1000 }
  +
  +% @LaTeX{} logo.  Not quite the same results as the definition in
  +% latex.ltx, since we use a different font for the raised A; it's most
  +% convenient for us to use an explicitly smaller font, rather than using
  +% the \scriptstyle font (since we don't reset \scriptstyle and
  +% \scriptscriptstyle).
  +%
  +\def\LaTeX{%
  +  L\kern-.36em
  +  {\setbox0=\hbox{T}%
  +   \vbox to \ht0{\hbox{\selectfonts\lllsize A}\vss}}%
  +  \kern-.15em
  +  \TeX
  +}
  +
  +% Be sure we're in horizontal mode when doing a tie, since we make space
  +% equivalent to this in @example-like environments. Otherwise, a space
  +% at the beginning of a line will start with \penalty -- and
  +% since \penalty is valid in vertical mode, we'd end up putting the
  +% penalty on the vertical list instead of in the new paragraph.
  +{\catcode`@ = 11
  + % Avoid using address@hidden directly, because that causes trouble
  + % if the definition is written into an index file.
  + \global\let\tiepenalty = address@hidden
  + \gdef\tie{\leavevmode\penalty\tiepenalty\ }
  +}
   
   % @: forces normal size whitespace following.
   \def\:{\spacefactor=1000 }
  @@ -356,17 +651,32 @@
   % @* forces a line break.
   \def\*{\hfil\break\hbox{}\ignorespaces}
   
  -% @. is an end-of-sentence period.
  -\def\.{.\spacefactor=3000 }
  +% @/ allows a line break.
  +\let\/=\allowbreak
   
  -% @enddots{} is an end-of-sentence ellipsis.
  -\gdef\enddots{$\mathinner{\ldotp\ldotp\ldotp\ldotp}$\spacefactor=3000}
  +% @. is an end-of-sentence period.
  +\def\.{.\spacefactor=\endofsentencespacefactor}
   
   % @! is an end-of-sentence bang.
  -\gdef\!{!\spacefactor=3000 }
  +\def\!{!\spacefactor=\endofsentencespacefactor}
   
   % @? is an end-of-sentence query.
  -\gdef\?{?\spacefactor=3000 }
  +\def\?{?\spacefactor=\endofsentencespacefactor}
  +
  +% @frenchspacing on|off  says whether to put extra space after punctuation.
  +% 
  +\def\onword{on}
  +\def\offword{off}
  +%
  +\parseargdef\frenchspacing{%
  +  \def\temp{#1}%
  +  \ifx\temp\onword \plainfrenchspacing
  +  \else\ifx\temp\offword \plainnonfrenchspacing
  +  \else
  +    \errhelp = \EMsimple
  +    \errmessage{Unknown @frenchspacing option `\temp', must be on/off}%
  +  \fi\fi
  +}
   
   % @w prevents a word break.  Without the \leavevmode, @w at the
   % beginning of a paragraph, when TeX is still in vertical mode, would
  @@ -381,47 +691,24 @@
   % therefore, no glue is inserted, and the space between the headline and
   % the text is small, which looks bad.
   %
  -\def\group{\begingroup
  -  \ifnum\catcode13=\active \else
  +% Another complication is that the group might be very large.  This can
  +% cause the glue on the previous page to be unduly stretched, because it
  +% does not have much material.  In this case, it's better to add an
  +% explicit \vfill so that the extra space is at the bottom.  The
  +% threshold for doing this is if the group is more than \vfilllimit
  +% percent of a page (\vfilllimit can be changed inside of @tex).
  +%
  +\newbox\groupbox
  +\def\vfilllimit{0.7}
  +%
  +\envdef\group{%
  +  \ifnum\catcode`\^^M=\active \else
       \errhelp = \groupinvalidhelp
       address@hidden invalid in context where filling is enabled}%
     \fi
  +  \startsavinginserts
     %
  -  % The \vtop we start below produces a box with normal height and large
  -  % depth; thus, TeX puts \baselineskip glue before it, and (when the
  -  % next line of text is done) \lineskip glue after it.  (See p.82 of
  -  % the TeXbook.)  Thus, space below is not quite equal to space
  -  % above.  But it's pretty close.
  -  \def\Egroup{%
  -    \egroup           % End the \vtop.
  -    \endgroup         % End the \group.
  -  }%
  -  %
  -  \vtop\bgroup
  -    % We have to put a strut on the last line in case the @group is in
  -    % the midst of an example, rather than completely enclosing it.
  -    % Otherwise, the interline space between the last line of the group
  -    % and the first line afterwards is too small.  But we can't put the
  -    % strut in \Egroup, since there it would be on a line by itself.
  -    % Hence this just inserts a strut at the beginning of each line.
  -    \everypar = {\strut}%
  -    %
  -    % Since we have a strut on every line, we don't need any of TeX's
  -    % normal interline spacing.
  -    \offinterlineskip
  -    %
  -    % OK, but now we have to do something about blank
  -    % lines in the input in @example-like environments, which normally
  -    % just turn into \lisppar, which will insert no space now that we've
  -    % turned off the interline space.  Simplest is to make them be an
  -    % empty paragraph.
  -    \ifx\par\lisppar
  -      \edef\par{\leavevmode \par}%
  -      %
  -      % Reset ^^M's definition to new definition of \par.
  -      \obeylines
  -    \fi
  -    %
  +  \setbox\groupbox = \vtop\bgroup
       % Do @comment since we are called inside an environment such as
       % @example, where each end-of-line in the input causes an
       % end-of-line in the output.  We don't want the end-of-line after
  @@ -431,6 +718,32 @@
       \comment
   }
   %
  +% The \vtop produces a box with normal height and large depth; thus, TeX puts
  +% \baselineskip glue before it, and (when the next line of text is done)
  +% \lineskip glue after it.  Thus, space below is not quite equal to space
  +% above.  But it's pretty close.
  +\def\Egroup{%
  +    % To get correct interline space between the last line of the group
  +    % and the first line afterwards, we have to propagate \prevdepth.
  +    \endgraf % Not \par, as it may have been set to \lisppar.
  +    \global\dimen1 = \prevdepth
  +  \egroup           % End the \vtop.
  +  % \dimen0 is the vertical size of the group's box.
  +  \dimen0 = \ht\groupbox  \advance\dimen0 by \dp\groupbox
  +  % \dimen2 is how much space is left on the page (more or less).
  +  \dimen2 = \pageheight   \advance\dimen2 by -\pagetotal
  +  % if the group doesn't fit on the current page, and it's a big big
  +  % group, force a page break.
  +  \ifdim \dimen0 > \dimen2
  +    \ifdim \pagetotal < \vfilllimit\pageheight
  +      \page
  +    \fi
  +  \fi
  +  \box\groupbox
  +  \prevdepth = \dimen1
  +  \checkinserts
  +}
  +%
   % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
   % message, so this ends up printing address@hidden can only ...'.
   %
  @@ -443,60 +756,60 @@
   
   \newdimen\mil  \mil=0.001in
   
  -\def\need{\parsearg\needx}
  -
   % Old definition--didn't work.
  -%\def\needx #1{\par %
  +%\parseargdef\need{\par %
   %% This method tries to make TeX break the page naturally
   %% if the depth of the box does not fit.
   %{\baselineskip=0pt%
  -%\vtop to #1\mil{\vfil}\kern -#1\mil\penalty 10000
  +%\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
   %\prevdepth=-1000pt
   %}}
   
  -\def\needx#1{%
  -  % Go into vertical mode, so we don't make a big box in the middle of a
  +\parseargdef\need{%
  +  % Ensure vertical mode, so we don't make a big box in the middle of a
     % paragraph.
     \par
     %
  -  % Don't add any leading before our big empty box, but allow a page
  -  % break, since the best break might be right here.
  -  \allowbreak
  -  \nointerlineskip
  -  \vtop to #1\mil{\vfil}%
  -  %
  -  % TeX does not even consider page breaks if a penalty added to the
  -  % main vertical list is 10000 or more.  But in order to see if the
  -  % empty box we just added fits on the page, we must make it consider
  -  % page breaks.  On the other hand, we don't want to actually break the
  -  % page after the empty box.  So we use a penalty of 9999.
  -  %
  -  % There is an extremely small chance that TeX will actually break the
  -  % page at this \penalty, if there are no other feasible breakpoints in
  -  % sight.  (If the user is using lots of big @group commands, which
  -  % almost-but-not-quite fill up a page, TeX will have a hard time doing
  -  % good page breaking, for example.)  However, I could not construct an
  -  % example where a page broke at this \penalty; if it happens in a real
  -  % document, then we can reconsider our strategy.
  -  \penalty9999
  -  %
  -  % Back up by the size of the box, whether we did a page break or not.
  -  \kern -#1\mil
  -  %
  -  % Do not allow a page break right after this kern.
  -  \nobreak
  +  % If the @need value is less than one line space, it's useless.
  +  \dimen0 = #1\mil
  +  \dimen2 = \ht\strutbox
  +  \advance\dimen2 by \dp\strutbox
  +  \ifdim\dimen0 > \dimen2
  +    %
  +    % Do a \strut just to make the height of this box be normal, so the
  +    % normal leading is inserted relative to the preceding line.
  +    % And a page break here is fine.
  +    \vtop to #1\mil{\strut\vfil}%
  +    %
  +    % TeX does not even consider page breaks if a penalty added to the
  +    % main vertical list is 10000 or more.  But in order to see if the
  +    % empty box we just added fits on the page, we must make it consider
  +    % page breaks.  On the other hand, we don't want to actually break the
  +    % page after the empty box.  So we use a penalty of 9999.
  +    %
  +    % There is an extremely small chance that TeX will actually break the
  +    % page at this \penalty, if there are no other feasible breakpoints in
  +    % sight.  (If the user is using lots of big @group commands, which
  +    % almost-but-not-quite fill up a page, TeX will have a hard time doing
  +    % good page breaking, for example.)  However, I could not construct an
  +    % example where a page broke at this \penalty; if it happens in a real
  +    % document, then we can reconsider our strategy.
  +    \penalty9999
  +    %
  +    % Back up by the size of the box, whether we did a page break or not.
  +    \kern -#1\mil
  +    %
  +    % Do not allow a page break right after this kern.
  +    \nobreak
  +  \fi
   }
   
  -% @br   forces paragraph break
  +% @br   forces paragraph break (and is undocumented).
   
   \let\br = \par
   
  -% @dots{}  output some dots
  -
  -\def\dots{$\ldots$}
  -
  -% @page    forces the start of a new page
  -
  +% @page forces the start of a new page.
  +%
   \def\page{\par\vfill\supereject}
   
   % @exdent text....
  @@ -507,572 +820,989 @@
   \newskip\exdentamount
   
   % This defn is used inside fill environments such as @defun.
  -\def\exdent{\parsearg\exdentyyy}
  -\def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}}
  +\parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}
   
   % This defn is used inside nofill environments such as @example.
  -\def\nofillexdent{\parsearg\nofillexdentyyy}
  -\def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
  -\leftline{\hskip\leftskip{\rm#1}}}}
  +\parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount
  +  \leftline{\hskip\leftskip{\rm#1}}}}
   
  -%\hbox{{\rm#1}}\hfil\break}}
  +% @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
  +% paragraph.  For more general purposes, use the \margin insertion
  +% class.  WHICH is `l' or `r'.
  +%
  +\newskip\inmarginspacing \inmarginspacing=1cm
  +\def\strutdepth{\dp\strutbox}
  +%
  +\def\doinmargin#1#2{\strut\vadjust{%
  +  \nobreak
  +  \kern-\strutdepth
  +  \vtop to \strutdepth{%
  +    \baselineskip=\strutdepth
  +    \vss
  +    % if you have multiple lines of stuff to put here, you'll need to
  +    % make the vbox yourself of the appropriate size.
  +    \ifx#1l%
  +      \llap{\ignorespaces #2\hskip\inmarginspacing}%
  +    \else
  +      \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
  +    \fi
  +    \null
  +  }%
  +}}
  +\def\inleftmargin{\doinmargin l}
  +\def\inrightmargin{\doinmargin r}
  +%
  +% @inmargin{TEXT [, RIGHT-TEXT]}
  +% (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
  +% else use TEXT for both).
  +%
  +\def\inmargin#1{\parseinmargin #1,,\finish}
  +\def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
  +  \setbox0 = \hbox{\ignorespaces #2}%
  +  \ifdim\wd0 > 0pt
  +    \def\lefttext{#1}%  have both texts
  +    \def\righttext{#2}%
  +  \else
  +    \def\lefttext{#1}%  have only one text
  +    \def\righttext{#1}%
  +  \fi
  +  %
  +  \ifodd\pageno
  +    \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
  +  \else
  +    \def\temp{\inleftmargin\lefttext}%
  +  \fi
  +  \temp
  +}
   
   % @include file    insert text of that file as input.
  -
  -\def\include{\parsearg\includezzz}
  -%Use \input\thisfile to avoid blank after \input, which may be an active
  -%char (in which case the blank would become the \input argument).
  -%The grouping keeps the value of \thisfile correct even when @include
  -%is nested.
  -\def\includezzz #1{\begingroup
  -\def\thisfile{#1}\input\thisfile
  -\endgroup}
  +%
  +\def\include{\parseargusing\filenamecatcodes\includezzz}
  +\def\includezzz#1{%
  +  \pushthisfilestack
  +  \def\thisfile{#1}%
  +  {%
  +    \makevalueexpandable
  +    \def\temp{\input #1 }%
  +    \expandafter
  +  }\temp
  +  \popthisfilestack
  +}
  +\def\filenamecatcodes{%
  +  \catcode`\\=\other
  +  \catcode`~=\other
  +  \catcode`^=\other
  +  \catcode`_=\other
  +  \catcode`|=\other
  +  \catcode`<=\other
  +  \catcode`>=\other
  +  \catcode`+=\other
  +  \catcode`-=\other
  +}
  +
  +\def\pushthisfilestack{%
  +  \expandafter\pushthisfilestackX\popthisfilestack\StackTerm
  +}
  +\def\pushthisfilestackX{%
  +  \expandafter\pushthisfilestackY\thisfile\StackTerm
  +}
  +\def\pushthisfilestackY #1\StackTerm #2\StackTerm {%
  +  \gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}%
  +}
  +
  +\def\popthisfilestack{\errthisfilestackempty}
  +\def\errthisfilestackempty{\errmessage{Internal error:
  +  the stack of filenames is empty.}}
   
   \def\thisfile{}
   
  -% @center line   outputs that line, centered
  -
  -\def\center{\parsearg\centerzzz}
  -\def\centerzzz #1{{\advance\hsize by -\leftskip
  -\advance\hsize by -\rightskip
  -\centerline{#1}}}
  +% @center line
  +% outputs that line, centered.
  +%
  +\parseargdef\center{%
  +  \ifhmode
  +    \let\next\centerH
  +  \else
  +    \let\next\centerV
  +  \fi
  +  \next{\hfil \ignorespaces#1\unskip \hfil}%
  +}
  +\def\centerH#1{%
  +  {%
  +    \hfil\break
  +    \advance\hsize by -\leftskip
  +    \advance\hsize by -\rightskip
  +    \line{#1}%
  +    \break
  +  }%
  +}
  +\def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}}
   
   % @sp n   outputs n lines of vertical space
   
  -\def\sp{\parsearg\spxxx}
  -\def\spxxx #1{\par \vskip #1\baselineskip}
  +\parseargdef\sp{\vskip #1\baselineskip}
   
   % @comment ...line which is ignored...
   % @c is the same as @comment
   % @ignore ... @end ignore  is another way to write a comment
   
  -\def\comment{\catcode 64=\other \catcode 123=\other \catcode 125=\other%
  -\parsearg \commentxxx}
  -
  -\def\commentxxx #1{\catcode 64=0 \catcode 123=1 \catcode 125=2 }
  +\def\comment{\begingroup \catcode`\^^M=\other%
  address@hidden \catcode`\{=\other \catcode`\}=\other%
  +\commentxxx}
  +{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
   
   \let\c=\comment
   
  -% Prevent errors for section commands.
  -% Used in @ignore and in failing conditionals.
  -\def\ignoresections{%
  -\let\chapter=\relax
  -\let\unnumbered=\relax
  -\let\top=\relax
  -\let\unnumberedsec=\relax
  -\let\unnumberedsection=\relax
  -\let\unnumberedsubsec=\relax
  -\let\unnumberedsubsection=\relax
  -\let\unnumberedsubsubsec=\relax
  -\let\unnumberedsubsubsection=\relax
  -\let\section=\relax
  -\let\subsec=\relax
  -\let\subsubsec=\relax
  -\let\subsection=\relax
  -\let\subsubsection=\relax
  -\let\appendix=\relax
  -\let\appendixsec=\relax
  -\let\appendixsection=\relax
  -\let\appendixsubsec=\relax
  -\let\appendixsubsection=\relax
  -\let\appendixsubsubsec=\relax
  -\let\appendixsubsubsection=\relax
  -\let\contents=\relax
  -\let\smallbook=\relax
  -\let\titlepage=\relax
  -}
  -
  -% Used in nested conditionals, where we have to parse the Texinfo source
  -% and so want to turn off most commands, in case they are used
  -% incorrectly.
  -%
  -\def\ignoremorecommands{%
  -  \let\defcv = \relax
  -  \let\deffn = \relax
  -  \let\deffnx = \relax
  -  \let\defindex = \relax
  -  \let\defivar = \relax
  -  \let\defmac = \relax
  -  \let\defmethod = \relax
  -  \let\defop = \relax
  -  \let\defopt = \relax
  -  \let\defspec = \relax
  -  \let\deftp = \relax
  -  \let\deftypefn = \relax
  -  \let\deftypefun = \relax
  -  \let\deftypevar = \relax
  -  \let\deftypevr = \relax
  -  \let\defun = \relax
  -  \let\defvar = \relax
  -  \let\defvr = \relax
  -  \let\ref = \relax
  -  \let\xref = \relax
  -  \let\printindex = \relax
  -  \let\pxref = \relax
  -  \let\settitle = \relax
  -  \let\include = \relax
  -  \let\lowersections = \relax
  -  \let\down = \relax
  -  \let\raisesections = \relax
  -  \let\up = \relax
  -  \let\set = \relax
  -  \let\clear = \relax
  -  \let\item = \relax
  -  \let\message = \relax
  +% @paragraphindent NCHARS
  +% We'll use ems for NCHARS, close enough.
  +% NCHARS can also be the word `asis' or `none'.
  +% We cannot feasibly implement @paragraphindent asis, though.
  +%
  +\def\asisword{asis} % no translation, these are keywords
  +\def\noneword{none}
  +%
  +\parseargdef\paragraphindent{%
  +  \def\temp{#1}%
  +  \ifx\temp\asisword
  +  \else
  +    \ifx\temp\noneword
  +      \defaultparindent = 0pt
  +    \else
  +      \defaultparindent = #1em
  +    \fi
  +  \fi
  +  \parindent = \defaultparindent
   }
   
  -% Ignore @ignore ... @end ignore.
  -%
  -\def\ignore{\doignore{ignore}}
  +% @exampleindent NCHARS
  +% We'll use ems for NCHARS like @paragraphindent.
  +% It seems @exampleindent asis isn't necessary, but
  +% I preserve it to make it similar to @paragraphindent.
  +\parseargdef\exampleindent{%
  +  \def\temp{#1}%
  +  \ifx\temp\asisword
  +  \else
  +    \ifx\temp\noneword
  +      \lispnarrowing = 0pt
  +    \else
  +      \lispnarrowing = #1em
  +    \fi
  +  \fi
  +}
   
  -% Also ignore @ifinfo, @ifhtml, @html, @menu, and @direntry text.
  -%
  -\def\ifinfo{\doignore{ifinfo}}
  -\def\ifhtml{\doignore{ifhtml}}
  -\def\html{\doignore{html}}
  -\def\menu{\doignore{menu}}
  -\def\direntry{\doignore{direntry}}
  +% @firstparagraphindent WORD
  +% If WORD is `none', then suppress indentation of the first paragraph
  +% after a section heading.  If WORD is `insert', then do indent at such
  +% paragraphs.
  +%
  +% The paragraph indentation is suppressed or not by calling
  +% \suppressfirstparagraphindent, which the sectioning commands do.
  +% We switch the definition of this back and forth according to WORD.
  +% By default, we suppress indentation.
  +%
  +\def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent}
  +\def\insertword{insert}
  +%
  +\parseargdef\firstparagraphindent{%
  +  \def\temp{#1}%
  +  \ifx\temp\noneword
  +    \let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent
  +  \else\ifx\temp\insertword
  +    \let\suppressfirstparagraphindent = \relax
  +  \else
  +    \errhelp = \EMsimple
  +    \errmessage{Unknown @firstparagraphindent option `\temp'}%
  +  \fi\fi
  +}
   
  -% Ignore text until a line address@hidden #1'.
  +% Here is how we actually suppress indentation.  Redefine \everypar to
  +% \kern backwards by \parindent, and then reset itself to empty.
   %
  -\def\doignore#1{\begingroup
  -  % Don't complain about control sequences we have declared \outer.
  -  \ignoresections
  -  %
  -  % Define a command to swallow text until we reach address@hidden #1'.
  -  \long\def\doignoretext##1\end #1{\enddoignore}%
  -  %
  -  % Make sure that spaces turn into tokens that match what \doignoretext 
wants.
  -  \catcode32 = 10
  -  %
  -  % And now expand that command.
  -  \doignoretext
  +% We also make \indent itself not actually do anything until the next
  +% paragraph.
  +%
  +\gdef\dosuppressfirstparagraphindent{%
  +  \gdef\indent{%
  +    \restorefirstparagraphindent
  +    \indent
  +  }%
  +  \gdef\noindent{%
  +    \restorefirstparagraphindent
  +    \noindent
  +  }%
  +  \global\everypar = {%
  +    \kern -\parindent
  +    \restorefirstparagraphindent
  +  }%
   }
   
  -% What we do to finish off ignored text.
  -%
  -\def\enddoignore{\endgroup\ignorespaces}%
  -
  -\newif\ifwarnedobs\warnedobsfalse
  -\def\obstexwarn{%
  -  \ifwarnedobs\relax\else
  -  % We need to warn folks that they may have trouble with TeX 3.0.
  -  % This uses \immediate\write16 rather than \message to get newlines.
  -    \immediate\write16{}
  -    \immediate\write16{***WARNING*** for users of Unix TeX 3.0!}
  -    \immediate\write16{This manual trips a bug in TeX version 3.0 (tex 
hangs).}
  -    \immediate\write16{If you are running another version of TeX, relax.}
  -    \immediate\write16{If you are running Unix TeX 3.0, kill this TeX 
process.}
  -    \immediate\write16{  Then upgrade your TeX installation if you can.}
  -    \immediate\write16{If you are stuck with version 3.0, run the}
  -    \immediate\write16{  script ``tex3patch'' from the Texinfo distribution}
  -    \immediate\write16{  to use a workaround.}
  -    \immediate\write16{}
  -    \warnedobstrue
  -    \fi
  -}
  -
  -% **In TeX 3.0, setting text in \nullfont hangs tex.  For a
  -% workaround (which requires the file ``dummy.tfm'' to be installed),
  -% uncomment the following line:
  -%%%%%\font\nullfont=dummy\let\obstexwarn=\relax
  -
  -% Ignore text, except that we keep track of conditional commands for
  -% purposes of nesting, up to an address@hidden #1' command.
  -%
  -\def\nestedignore#1{%
  -  \obstexwarn
  -  % We must actually expand the ignored text to look for the @end
  -  % command, so that nested ignore constructs work.  Thus, we put the
  -  % text into a \vbox and then do nothing with the result.  To minimize
  -  % the change of memory overflow, we follow the approach outlined on
  -  % page 401 of the TeXbook: make the current font be a dummy font.
  -  %
  -  \setbox0 = \vbox\bgroup
  -    % Don't complain about control sequences we have declared \outer.
  -    \ignoresections
  -    %
  -    % Define address@hidden #1' to end the box, which will in turn undefine 
the
  -    % @end command again.
  -    \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}%
  -    %
  -    % We are going to be parsing Texinfo commands.  Most cause no
  -    % trouble when they are used incorrectly, but some commands do
  -    % complicated argument parsing or otherwise get confused, so we
  -    % undefine them.
  -    %
  -    % We can't do anything about stray @-signs, unfortunately;
  -    % they'll produce `undefined control sequence' errors.
  -    \ignoremorecommands
  -    %
  -    % Set the current font to be \nullfont, a TeX primitive, and define
  -    % all the font commands to also use \nullfont.  We don't use
  -    % dummy.tfm, as suggested in the TeXbook, because not all sites
  -    % might have that installed.  Therefore, math mode will still
  -    % produce output, but that should be an extremely small amount of
  -    % stuff compared to the main input.
  -    %
  -    \nullfont
  -    \let\tenrm = \nullfont  \let\tenit = \nullfont  \let\tensl = \nullfont
  -    \let\tenbf = \nullfont  \let\tentt = \nullfont  \let\smallcaps = 
\nullfont
  -    \let\tensf = \nullfont
  -    % Similarly for index fonts (mostly for their use in
  -    % smallexample)
  -    \let\indrm = \nullfont  \let\indit = \nullfont  \let\indsl = \nullfont
  -    \let\indbf = \nullfont  \let\indtt = \nullfont  \let\indsc = \nullfont
  -    \let\indsf = \nullfont
  -    %
  -    % Don't complain when characters are missing from the fonts.
  -    \tracinglostchars = 0
  -    %
  -    % Don't bother to do space factor calculations.
  -    \frenchspacing
  -    %
  -    % Don't report underfull hboxes.
  -    \hbadness = 10000
  -    %
  -    % Do minimal line-breaking.
  -    \pretolerance = 10000
  -    %
  -    % Do not execute instructions in @tex
  -    \def\tex{\doignore{tex}}
  +\gdef\restorefirstparagraphindent{%
  +  \global \let \indent = \ptexindent
  +  \global \let \noindent = \ptexnoindent
  +  \global \everypar = {}%
   }
   
  -% @set VAR sets the variable VAR to an empty value.
  -% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
  +
  +% @asis just yields its argument.  Used with @table, for example.
   %
  -% Since we want to separate VAR from REST-OF-LINE (which might be
  -% empty), we can't just use \parsearg; we have to insert a space of our
  -% own to delimit the rest of the line, and then take it out again if we
  -% didn't need it.
  +\def\asis#1{#1}
  +
  +% @math outputs its argument in math mode.
   %
  -\def\set{\parsearg\setxxx}
  -\def\setxxx#1{\setyyy#1 \endsetyyy}
  -\def\setyyy#1 #2\endsetyyy{%
  -  \def\temp{#2}%
  -  \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty
  -  \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted.
  -  \fi
  -}
  -\def\setzzz#1#2 \endsetzzz{\expandafter\xdef\csname SET#1\endcsname{#2}}
  -
  -% @clear VAR clears (i.e., unsets) the variable VAR.
  -%
  -\def\clear{\parsearg\clearxxx}
  -\def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax}
  -
  -% @value{foo} gets the text saved in variable foo.
  +% One complication: _ usually means subscripts, but it could also mean
  +% an actual _ character, as in @address@hidden + 1}.  So make
  +% _ active, and distinguish by seeing if the current family is \slfam,
  +% which is what @var uses.
  +{
  +  \catcode\underChar = \active
  +  \gdef\mathunderscore{%
  +    \catcode\underChar=\active
  +    \def_{\ifnum\fam=\slfam \_\else\sb\fi}%
  +  }
  +}
  +% Another complication: we want \\ (and @\) to output a \ character.
  +% FYI, plain.tex uses \\ as a temporary control sequence (why?), but
  +% this is not advertised and we don't care.  Texinfo does not
  +% otherwise define @\.
   %
  -\def\value#1{\expandafter
  -             \ifx\csname SET#1\endcsname\relax
  -                     {\{No value for ``#1''\}}
  -             \else \csname SET#1\endcsname \fi}
  -
  -% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
  -% with @set.
  +% The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
  +\def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
   %
  -\def\ifset{\parsearg\ifsetxxx}
  -\def\ifsetxxx #1{%
  -  \expandafter\ifx\csname SET#1\endcsname\relax
  -    \expandafter\ifsetfail
  -  \else
  -    \expandafter\ifsetsucceed
  -  \fi
  -}
  -\def\ifsetsucceed{\conditionalsucceed{ifset}}
  -\def\ifsetfail{\nestedignore{ifset}}
  -\defineunmatchedend{ifset}
  -
  -% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
  -% defined with @set, or has been undefined with @clear.
  +\def\math{%
  +  \tex
  +  \mathunderscore
  +  \let\\ = \mathbackslash
  +  \mathactive
  +  $\finishmath
  +}
  +\def\finishmath#1{#1$\endgroup}  % Close the group opened by \tex.
  +
  +% Some active characters (such as <) are spaced differently in math.
  +% We have to reset their definitions in case the @math was an argument
  +% to a command which sets the catcodes (such as @item or @section).
   %
  -\def\ifclear{\parsearg\ifclearxxx}
  -\def\ifclearxxx #1{%
  -  \expandafter\ifx\csname SET#1\endcsname\relax
  -    \expandafter\ifclearsucceed
  -  \else
  -    \expandafter\ifclearfail
  -  \fi
  +{
  +  \catcode`^ = \active
  +  \catcode`< = \active
  +  \catcode`> = \active
  +  \catcode`+ = \active
  +  \gdef\mathactive{%
  +    \let^ = \ptexhat
  +    \let< = \ptexless
  +    \let> = \ptexgtr
  +    \let+ = \ptexplus
  +  }
   }
  -\def\ifclearsucceed{\conditionalsucceed{ifclear}}
  -\def\ifclearfail{\nestedignore{ifclear}}
  -\defineunmatchedend{ifclear}
   
  -% @iftex always succeeds; we read the text following, through @end
  -% iftex).  But address@hidden iftex' should be valid only after an @iftex.
  -%
  -\def\iftex{\conditionalsucceed{iftex}}
  -\defineunmatchedend{iftex}
  +% @bullet and @minus need the same treatment as @math, just above.
  +\def\bullet{$\ptexbullet$}
  +\def\minus{$-$}
   
  -% We can't just want to start a group at @iftex (for example) and end it
  -% at @end iftex, since then @set commands inside the conditional have no
  -% effect (they'd get reverted at the end of the group).  So we must
  -% define \Eiftex to redefine itself to be its previous value.  (We can't
  -% just define it to fail again with an ``unmatched end'' error, since
  -% the @ifset might be nested.)
  +% @dots{} outputs an ellipsis using the current font.
  +% We do .5em per period so that it has the same spacing in a typewriter
  +% font as three actual period characters.
   %
  -\def\conditionalsucceed#1{%
  -  \edef\temp{%
  -    % Remember the current value of \E#1.
  -    \let\nece{prevE#1} = \nece{E#1}%
  -    %
  -    % At the address@hidden #1', redefine \E#1 to be its previous value.
  -    \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}%
  +\def\dots{%
  +  \leavevmode
  +  \hbox to 1.5em{%
  +    \hskip 0pt plus 0.25fil
  +    .\hfil.\hfil.%
  +    \hskip 0pt plus 0.5fil
     }%
  -  \temp
   }
   
  -% We need to expand lots of \csname's, but we don't want to expand the
  -% control sequences after we've constructed them.
  -%
  -\def\nece#1{\expandafter\noexpand\csname#1\endcsname}
  -
  -% @asis just yields its argument.  Used with @table, for example.
  +% @enddots{} is an end-of-sentence ellipsis.
   %
  -\def\asis#1{#1}
  +\def\enddots{%
  +  \dots
  +  \spacefactor=\endofsentencespacefactor
  +}
   
  -% @math means output in math mode.
  -% We don't use $'s directly in the definition of \math because control
  -% sequences like \math are expanded when the toc file is written.  Then,
  -% we read the toc file back, the $'s will be normal characters (as they
  -% should be, according to the definition of Texinfo).  So we must use a
  -% control sequence to switch into and out of math mode.
  -%
  -% This isn't quite enough for @math to work properly in indices, but it
  -% seems unlikely it will ever be needed there.
  +% @comma{} is so commas can be inserted into text without messing up
  +% Texinfo's parsing.
   %
  -\let\implicitmath = $
  -\def\math#1{\implicitmath #1\implicitmath}
  -
  -% @bullet and @minus need the same treatment as @math, just above.
  -\def\bullet{\implicitmath\ptexbullet\implicitmath}
  -\def\minus{\implicitmath-\implicitmath}
  -
  -\def\node{\ENVcheck\parsearg\nodezzz}
  -\def\nodezzz#1{\nodexxx [#1,]}
  -\def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
  -\let\nwnode=\node
  -\let\lastnode=\relax
  -
  -\def\donoderef{\ifx\lastnode\relax\else
  -\expandafter\expandafter\expandafter\setref{\lastnode}\fi
  -\global\let\lastnode=\relax}
  -
  -\def\unnumbnoderef{\ifx\lastnode\relax\else
  -\expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi
  -\global\let\lastnode=\relax}
  -
  -\def\appendixnoderef{\ifx\lastnode\relax\else
  -\expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi
  -\global\let\lastnode=\relax}
  +\let\comma = ,
   
  +% @refill is a no-op.
   \let\refill=\relax
   
  +% If working on a large document in chapters, it is convenient to
  +% be able to disable indexing, cross-referencing, and contents, for test 
runs.
  +% This is done with @novalidate (before @setfilename).
  +%
  +\newif\iflinks \linkstrue % by default we want the aux files.
  +\let\novalidate = \linksfalse
  +
   % @setfilename is done at the beginning of every texinfo file.
   % So open here the files we need to have open while reading the input.
   % This makes it possible to make a .fmt file for texinfo.
   \def\setfilename{%
  -   \readauxfile
  -   \opencontents
  -   \openindices
      \fixbackslash  % Turn off hack to swallow `\input texinfo'.
  -   \global\let\setfilename=\comment % Ignore extra @setfilename cmds.
  +   \iflinks
  +     \tryauxfile
  +     % Open the new aux file.  TeX will close it automatically at exit.
  +     \immediate\openout\auxfile=\jobname.aux
  +   \fi % \openindices needs to do some work in any case.
  +   \openindices
  +   \let\setfilename=\comment % Ignore extra @setfilename cmds.
  +   %
  +   % If texinfo.cnf is present on the system, read it.
  +   % Useful for site-wide @afourpaper, etc.
  +   \openin 1 texinfo.cnf
  +   \ifeof 1 \else \input texinfo.cnf \fi
  +   \closein 1
  +   %
      \comment % Ignore the actual filename.
   }
   
  +% Called from \setfilename.
  +%
  +\def\openindices{%
  +  \newindex{cp}%
  +  \newcodeindex{fn}%
  +  \newcodeindex{vr}%
  +  \newcodeindex{tp}%
  +  \newcodeindex{ky}%
  +  \newcodeindex{pg}%
  +}
  +
  +% @bye.
   \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
   
  -\def\inforef #1{\inforefzzz #1,,,,**}
  -\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} 
\file{\ignorespaces #3{}},
  -  node \samp{\ignorespaces#1{}}}
  +
  +\message{pdf,}
  +% adobe `portable' document format
  +\newcount\tempnum
  +\newcount\lnkcount
  +\newtoks\filename
  +\newcount\filenamelength
  +\newcount\pgn
  +\newtoks\toksA
  +\newtoks\toksB
  +\newtoks\toksC
  +\newtoks\toksD
  +\newbox\boxA
  +\newcount\countA
  +\newif\ifpdf
  +\newif\ifpdfmakepagedest
  +
  +% when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
  +% can be set).  So we test for \relax and 0 as well as \undefined,
  +% borrowed from ifpdf.sty.
  +\ifx\pdfoutput\undefined
  +\else
  +  \ifx\pdfoutput\relax
  +  \else
  +    \ifcase\pdfoutput
  +    \else
  +      \pdftrue
  +    \fi
  +  \fi
  +\fi
  +
  +% PDF uses PostScript string constants for the names of xref targets, to
  +% for display in the outlines, and in other places.  Thus, we have to
  +% double any backslashes.  Otherwise, a name like "\node" will be
  +% interpreted as a newline (\n), followed by o, d, e.  Not good.
  +% http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html
  +% (and related messages, the final outcome is that it is up to the TeX
  +% user to double the backslashes and otherwise make the string valid, so
  +% that's we do).
  +
  +% double active backslashes.
  +% 
  address@hidden \catcode`\\=\active
  + @address@hidden@address@hidden@active @otherbackslash}
  + @address@hidden
  +   @address@hidden@active
  +   @address@hidden
  +}
  +
  +% To handle parens, we must adopt a different approach, since parens are
  +% not active characters.  hyperref.dtx (which has the same problem as
  +% us) handles it with this amazing macro to replace tokens.  I've
  +% tinkered with it a little for texinfo, but it's definitely from there.
  +% 
  +% #1 is the tokens to replace.
  +% #2 is the replacement.
  +% #3 is the control sequence with the string.
  +% 
  +\def\HyPsdSubst#1#2#3{%
  +  \def\HyPsdReplace##1#1##2\END{%
  +    ##1%
  +    \ifx\\##2\\%
  +    \else
  +      #2%
  +      \HyReturnAfterFi{%
  +        \HyPsdReplace##2\END
  +      }%
  +    \fi
  +  }%
  +  \xdef#3{\expandafter\HyPsdReplace#3#1\END}%
  +}
  +\long\def\HyReturnAfterFi#1\fi{\fi#1}
  +
  +% #1 is a control sequence in which to do the replacements.
  +\def\backslashparens#1{%
  +  \xdef#1{#1}% redefine it as its expansion; the definition is simply
  +             % \lastnode when called from \setref -> \pdfmkdest.
  +  \HyPsdSubst{(}{\backslashlparen}{#1}%
  +  \HyPsdSubst{)}{\backslashrparen}{#1}%
  +}
  +
  +{\catcode\exclamChar = 0 \catcode\backChar = \other
  + !gdef!backslashlparen{\(}%
  + !gdef!backslashrparen{\)}%
  +}
  +
  +\ifpdf
  +  \input pdfcolor
  +  \pdfcatalog{/PageMode /UseOutlines}%
  +  \def\dopdfimage#1#2#3{%
  +    \def\imagewidth{#2}%
  +    \def\imageheight{#3}%
  +    % without \immediate, pdftex seg faults when the same image is
  +    % included twice.  (Version 3.14159-pre-1.0-unofficial-20010704.)
  +    \ifnum\pdftexversion < 14
  +      \immediate\pdfimage
  +    \else
  +      \immediate\pdfximage
  +    \fi
  +      \ifx\empty\imagewidth\else width \imagewidth \fi
  +      \ifx\empty\imageheight\else height \imageheight \fi
  +      \ifnum\pdftexversion<13
  +         #1.pdf%
  +       \else
  +         {#1.pdf}%
  +       \fi
  +    \ifnum\pdftexversion < 14 \else
  +      \pdfrefximage \pdflastximage
  +    \fi}
  +  \def\pdfmkdest#1{{%
  +    % We have to set dummies so commands such as @code, and characters
  +    % such as \, aren't expanded when present in a section title.
  +    \atdummies
  +    \turnoffactive
  +    \activebackslashdouble
  +    \def\pdfdestname{#1}%
  +    \backslashparens\pdfdestname
  +    \pdfdest name{\pdfdestname} xyz%
  +  }}%
  +  %
  +  % used to mark target names; must be expandable.
  +  \def\pdfmkpgn#1{#1}%
  +  %
  +  \let\linkcolor = \Blue  % was Cyan, but that seems light?
  +  \def\endlink{\Black\pdfendlink}
  +  % Adding outlines to PDF; macros for calculating structure of outlines
  +  % come from Petr Olsak
  +  \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
  +    \else \csname#1\endcsname \fi}
  +  \def\advancenumber#1{\tempnum=\expnumber{#1}\relax
  +    \advance\tempnum by 1
  +    \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
  +  %
  +  % #1 is the section text, which is what will be displayed in the
  +  % outline by the pdf viewer.  #2 is the pdf expression for the number
  +  % of subentries (or empty, for subsubsections).  #3 is the node text,
  +  % which might be empty if this toc entry had no corresponding node.
  +  % #4 is the page number
  +  %
  +  \def\dopdfoutline#1#2#3#4{%
  +    % Generate a link to the node text if that exists; else, use the
  +    % page number.  We could generate a destination for the section
  +    % text in the case where a section has no node, but it doesn't
  +    % seem worth the trouble, since most documents are normally structured.
  +    \def\pdfoutlinedest{#3}%
  +    \ifx\pdfoutlinedest\empty
  +      \def\pdfoutlinedest{#4}%
  +    \else
  +      % Doubled backslashes in the name.
  +      {\activebackslashdouble \xdef\pdfoutlinedest{#3}%
  +       \backslashparens\pdfoutlinedest}%
  +    \fi
  +    %
  +    % Also double the backslashes in the display string.
  +    {\activebackslashdouble \xdef\pdfoutlinetext{#1}%
  +     \backslashparens\pdfoutlinetext}%
  +    %
  +    \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{\pdfoutlinetext}%
  +  }
  +  %
  +  \def\pdfmakeoutlines{%
  +    \begingroup
  +      % Thanh's hack / proper braces in bookmarks
  +      \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace
  +      \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace
  +      %
  +      % Read toc silently, to get counts of subentries for \pdfoutline.
  +      \def\numchapentry##1##2##3##4{%
  +     \def\thischapnum{##2}%
  +     \def\thissecnum{0}%
  +     \def\thissubsecnum{0}%
  +      }%
  +      \def\numsecentry##1##2##3##4{%
  +     \advancenumber{chap\thischapnum}%
  +     \def\thissecnum{##2}%
  +     \def\thissubsecnum{0}%
  +      }%
  +      \def\numsubsecentry##1##2##3##4{%
  +     \advancenumber{sec\thissecnum}%
  +     \def\thissubsecnum{##2}%
  +      }%
  +      \def\numsubsubsecentry##1##2##3##4{%
  +     \advancenumber{subsec\thissubsecnum}%
  +      }%
  +      \def\thischapnum{0}%
  +      \def\thissecnum{0}%
  +      \def\thissubsecnum{0}%
  +      %
  +      % use \def rather than \let here because we redefine \chapentry et
  +      % al. a second time, below.
  +      \def\appentry{\numchapentry}%
  +      \def\appsecentry{\numsecentry}%
  +      \def\appsubsecentry{\numsubsecentry}%
  +      \def\appsubsubsecentry{\numsubsubsecentry}%
  +      \def\unnchapentry{\numchapentry}%
  +      \def\unnsecentry{\numsecentry}%
  +      \def\unnsubsecentry{\numsubsecentry}%
  +      \def\unnsubsubsecentry{\numsubsubsecentry}%
  +      \readdatafile{toc}%
  +      %
  +      % Read toc second time, this time actually producing the outlines.
  +      % The `-' means take the \expnumber as the absolute number of
  +      % subentries, which we calculated on our first read of the .toc above.
  +      %
  +      % We use the node names as the destinations.
  +      \def\numchapentry##1##2##3##4{%
  +        \dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}%
  +      \def\numsecentry##1##2##3##4{%
  +        \dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}%
  +      \def\numsubsecentry##1##2##3##4{%
  +        \dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}%
  +      \def\numsubsubsecentry##1##2##3##4{% count is always zero
  +        \dopdfoutline{##1}{}{##3}{##4}}%
  +      %
  +      % PDF outlines are displayed using system fonts, instead of
  +      % document fonts.  Therefore we cannot use special characters,
  +      % since the encoding is unknown.  For example, the eogonek from
  +      % Latin 2 (0xea) gets translated to a | character.  Info from
  +      % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100.
  +      %
  +      % xx to do this right, we have to translate 8-bit characters to
  +      % their "best" equivalent, based on the @documentencoding.  Right
  +      % now, I guess we'll just let the pdf reader have its way.
  +      \indexnofonts
  +      \setupdatafile
  +      \activebackslash
  +      \input \jobname.toc
  +    \endgroup
  +  }
  +  %
  +  \def\skipspaces#1{\def\PP{#1}\def\D{|}%
  +    \ifx\PP\D\let\nextsp\relax
  +    \else\let\nextsp\skipspaces
  +      \ifx\p\space\else\addtokens{\filename}{\PP}%
  +        \advance\filenamelength by 1
  +      \fi
  +    \fi
  +    \nextsp}
  +  \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
  +  \ifnum\pdftexversion < 14
  +    \let \startlink \pdfannotlink
  +  \else
  +    \let \startlink \pdfstartlink
  +  \fi
  +  \def\pdfurl#1{%
  +    \begingroup
  +      address@hidden@}%
  +      \makevalueexpandable
  +      \leavevmode\Red
  +      \startlink attr{/Border [0 0 0]}%
  +        user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
  +    \endgroup}
  +  \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
  +  \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
  +  \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
  +  \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
  +  \def\maketoks{%
  +    \expandafter\poptoks\the\toksA|ENDTOKS|\relax
  +    \ifx\first0\adn0
  +    \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
  +    \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
  +    \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
  +    \else
  +      \ifnum0=\countA\else\makelink\fi
  +      \ifx\first.\let\next=\done\else
  +        \let\next=\maketoks
  +        \addtokens{\toksB}{\the\toksD}
  +        \ifx\first,\addtokens{\toksB}{\space}\fi
  +      \fi
  +    \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
  +    \next}
  +  \def\makelink{\addtokens{\toksB}%
  +    {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
  +  \def\pdflink#1{%
  +    \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
  +    \linkcolor #1\endlink}
  +  \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
  +\else
  +  \let\pdfmkdest = \gobble
  +  \let\pdfurl = \gobble
  +  \let\endlink = \relax
  +  \let\linkcolor = \relax
  +  \let\pdfmakeoutlines = \relax
  +\fi  % \ifx\pdfoutput
  +
   
   \message{fonts,}
   
  -% Font-change commands.
  +% Change the current font style to #1, remembering it in \curfontstyle.
  +% For now, we do not accumulate font styles: @address@hidden prints foo in
  +% italics, not bold italics.
  +%
  +\def\setfontstyle#1{%
  +  \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
  +  \csname ten#1\endcsname  % change the current font
  +}
  +
  +% Select #1 fonts with the current style.
  +%
  +\def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname}
  +
  +\def\rm{\fam=0 \setfontstyle{rm}}
  +\def\it{\fam=\itfam \setfontstyle{it}}
  +\def\sl{\fam=\slfam \setfontstyle{sl}}
  +\def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf}
  +\def\tt{\fam=\ttfam \setfontstyle{tt}}
   
  -% Texinfo supports the sans serif font style, which plain TeX does not.
  -% So we set up a \sf analogous to plain's \rm, etc.
  +% Texinfo sort of supports the sans serif font style, which plain TeX does 
not.
  +% So we set up a \sf.
   \newfam\sffam
  -\def\sf{\fam=\sffam \tensf}
  +\def\sf{\fam=\sffam \setfontstyle{sf}}
   \let\li = \sf % Sometimes we call it \li, not \sf.
   
  -%% Try out Computer Modern fonts at \magstephalf
  -\let\mainmagstep=\magstephalf
  +% We don't need math for this font style.
  +\def\ttsl{\setfontstyle{ttsl}}
  +
  +% Default leading.
  +\newdimen\textleading  \textleading = 13.2pt
  +
  +% Set the baselineskip to #1, and the lineskip and strut size
  +% correspondingly.  There is no deep meaning behind these magic numbers
  +% used as factors; they just match (closely enough) what Knuth defined.
  +%
  +\def\lineskipfactor{.08333}
  +\def\strutheightpercent{.70833}
  +\def\strutdepthpercent {.29167}
  +%
  +\def\setleading#1{%
  +  \normalbaselineskip = #1\relax
  +  \normallineskip = \lineskipfactor\normalbaselineskip
  +  \normalbaselines
  +  \setbox\strutbox =\hbox{%
  +    \vrule width0pt height\strutheightpercent\baselineskip
  +                    depth \strutdepthpercent \baselineskip
  +  }%
  +}
   
   % Set the font macro #1 to the font named #2, adding on the
   % specified font prefix (normally `cm').
  -\def\fontprefix{cm}
  -\def\setfont#1#2{\font#1=\fontprefix#2}
  +% #3 is the font's design size, #4 is a scale factor
  +\def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
   
  -% Enter address@hidden dc' to use the dc fonts instead of the cm fonts.
  -\def\setfontprefix{\parsearg\\setfontprefixzzz}
  -\def\setfontprefixzzz#1{\gdef\fontprefix{#1}}
  -
  -\ifx\bigger\relax
  -\let\mainmagstep=\magstep1
  -\setfont\textrm{r12}
  -\setfont\texttt{tt12}
  -\else
  -\setfont\textrm{r10 scaled \mainmagstep}
  -\setfont\texttt{tt10 scaled \mainmagstep}
  +% Use cm as the default font prefix.
  +% To specify the font prefix, you must define \fontprefix
  +% before you read in texinfo.tex.
  +\ifx\fontprefix\undefined
  +\def\fontprefix{cm}
   \fi
  -% Instead of cmb10, you many want to use cmbx10.
  -% cmbx10 is a prettier font on its own, but cmb10
  -% looks better when embedded in a line with cmr10.
  -\setfont\textbf{b10 scaled \mainmagstep}
  -\setfont\textit{ti10 scaled \mainmagstep}
  -\setfont\textsl{sl10 scaled \mainmagstep}
  -\setfont\textsf{ss10 scaled \mainmagstep}
  -\setfont\textsc{csc10 scaled \mainmagstep}
  -\setfont\texti{mi10 scaled \mainmagstep}
  -\setfont\textsy{sy10 scaled \mainmagstep}
  -
  -% A few fonts for @defun, etc.
  -\setfont\defbf{bx10 scaled \magstep1} %was 1314
  -\setfont\deftt{tt10 scaled \magstep1}
  -\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
  -
  -% Fonts for indices and small examples.
  -% We actually use the slanted font rather than the italic,
  -% because texinfo normally uses the slanted fonts for that.
  -% Do not make many font distinctions in general in the index, since they
  -% aren't very useful.
  -\setfont\ninett{tt9}
  -\setfont\indrm{r9}
  -\setfont\indit{sl9}
  -\let\indsl=\indit
  -\let\indtt=\ninett
  -\let\indsf=\indrm
  -\let\indbf=\indrm
  -\let\indsc=\indrm
  -\setfont\indi{mi9}
  -\setfont\indsy{sy9}
  -
  -% Fonts for headings
  -\setfont\chaprm{bx12 scaled \magstep2}
  -\setfont\chapit{ti12 scaled \magstep2}
  -\setfont\chapsl{sl12 scaled \magstep2}
  -\setfont\chaptt{tt12 scaled \magstep2}
  -\setfont\chapsf{ss12 scaled \magstep2}
  +% Support font families that don't use the same naming scheme as CM.
  +\def\rmshape{r}
  +\def\rmbshape{bx}               %where the normal face is bold
  +\def\bfshape{b}
  +\def\bxshape{bx}
  +\def\ttshape{tt}
  +\def\ttbshape{tt}
  +\def\ttslshape{sltt}
  +\def\itshape{ti}
  +\def\itbshape{bxti}
  +\def\slshape{sl}
  +\def\slbshape{bxsl}
  +\def\sfshape{ss}
  +\def\sfbshape{ss}
  +\def\scshape{csc}
  +\def\scbshape{csc}
  +
  +% Text fonts (11.2pt, magstep1).
  +\def\textnominalsize{11pt}
  +\edef\mainmagstep{\magstephalf}
  +\setfont\textrm\rmshape{10}{\mainmagstep}
  +\setfont\texttt\ttshape{10}{\mainmagstep}
  +\setfont\textbf\bfshape{10}{\mainmagstep}
  +\setfont\textit\itshape{10}{\mainmagstep}
  +\setfont\textsl\slshape{10}{\mainmagstep}
  +\setfont\textsf\sfshape{10}{\mainmagstep}
  +\setfont\textsc\scshape{10}{\mainmagstep}
  +\setfont\textttsl\ttslshape{10}{\mainmagstep}
  +\font\texti=cmmi10 scaled \mainmagstep
  +\font\textsy=cmsy10 scaled \mainmagstep
  +
  +% A few fonts for @defun names and args.
  +\setfont\defbf\bfshape{10}{\magstep1}
  +\setfont\deftt\ttshape{10}{\magstep1}
  +\setfont\defttsl\ttslshape{10}{\magstep1}
  +\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
  +
  +% Fonts for indices, footnotes, small examples (9pt).
  +\def\smallnominalsize{9pt}
  +\setfont\smallrm\rmshape{9}{1000}
  +\setfont\smalltt\ttshape{9}{1000}
  +\setfont\smallbf\bfshape{10}{900}
  +\setfont\smallit\itshape{9}{1000}
  +\setfont\smallsl\slshape{9}{1000}
  +\setfont\smallsf\sfshape{9}{1000}
  +\setfont\smallsc\scshape{10}{900}
  +\setfont\smallttsl\ttslshape{10}{900}
  +\font\smalli=cmmi9
  +\font\smallsy=cmsy9
  +
  +% Fonts for small examples (8pt).
  +\def\smallernominalsize{8pt}
  +\setfont\smallerrm\rmshape{8}{1000}
  +\setfont\smallertt\ttshape{8}{1000}
  +\setfont\smallerbf\bfshape{10}{800}
  +\setfont\smallerit\itshape{8}{1000}
  +\setfont\smallersl\slshape{8}{1000}
  +\setfont\smallersf\sfshape{8}{1000}
  +\setfont\smallersc\scshape{10}{800}
  +\setfont\smallerttsl\ttslshape{10}{800}
  +\font\smalleri=cmmi8
  +\font\smallersy=cmsy8
  +
  +% Fonts for title page (20.4pt):
  +\def\titlenominalsize{20pt}
  +\setfont\titlerm\rmbshape{12}{\magstep3}
  +\setfont\titleit\itbshape{10}{\magstep4}
  +\setfont\titlesl\slbshape{10}{\magstep4}
  +\setfont\titlett\ttbshape{12}{\magstep3}
  +\setfont\titlettsl\ttslshape{10}{\magstep4}
  +\setfont\titlesf\sfbshape{17}{\magstep1}
  +\let\titlebf=\titlerm
  +\setfont\titlesc\scbshape{10}{\magstep4}
  +\font\titlei=cmmi12 scaled \magstep3
  +\font\titlesy=cmsy10 scaled \magstep4
  +\def\authorrm{\secrm}
  +\def\authortt{\sectt}
  +
  +% Chapter (and unnumbered) fonts (17.28pt).
  +\def\chapnominalsize{17pt}
  +\setfont\chaprm\rmbshape{12}{\magstep2}
  +\setfont\chapit\itbshape{10}{\magstep3}
  +\setfont\chapsl\slbshape{10}{\magstep3}
  +\setfont\chaptt\ttbshape{12}{\magstep2}
  +\setfont\chapttsl\ttslshape{10}{\magstep3}
  +\setfont\chapsf\sfbshape{17}{1000}
   \let\chapbf=\chaprm
  -\setfont\chapsc{csc10 scaled\magstep3}
  -\setfont\chapi{mi12 scaled \magstep2}
  -\setfont\chapsy{sy10 scaled \magstep3}
  -
  -\setfont\secrm{bx12 scaled \magstep1}
  -\setfont\secit{ti12 scaled \magstep1}
  -\setfont\secsl{sl12 scaled \magstep1}
  -\setfont\sectt{tt12 scaled \magstep1}
  -\setfont\secsf{ss12 scaled \magstep1}
  -\setfont\secbf{bx12 scaled \magstep1}
  -\setfont\secsc{csc10 scaled\magstep2}
  -\setfont\seci{mi12 scaled \magstep1}
  -\setfont\secsy{sy10 scaled \magstep2}
  -
  -% \setfont\ssecrm{bx10 scaled \magstep1}    % This size an font looked bad.
  -% \setfont\ssecit{cmti10 scaled \magstep1}    % The letters were too crowded.
  -% \setfont\ssecsl{sl10 scaled \magstep1}
  -% \setfont\ssectt{tt10 scaled \magstep1}
  -% \setfont\ssecsf{ss10 scaled \magstep1}
  -
  -%\setfont\ssecrm{b10 scaled 1315}    % Note the use of cmb rather than cmbx.
  -%\setfont\ssecit{ti10 scaled 1315}   % Also, the size is a little larger than
  -%\setfont\ssecsl{sl10 scaled 1315}   % being scaled magstep1.
  -%\setfont\ssectt{tt10 scaled 1315}
  -%\setfont\ssecsf{ss10 scaled 1315}
  -
  -%\let\ssecbf=\ssecrm
  -
  -\setfont\ssecrm{bx12 scaled \magstephalf}
  -\setfont\ssecit{ti12 scaled \magstephalf}
  -\setfont\ssecsl{sl12 scaled \magstephalf}
  -\setfont\ssectt{tt12 scaled \magstephalf}
  -\setfont\ssecsf{ss12 scaled \magstephalf}
  -\setfont\ssecbf{bx12 scaled \magstephalf}
  -\setfont\ssecsc{csc10 scaled \magstep1}
  -\setfont\sseci{mi12 scaled \magstephalf}
  -\setfont\ssecsy{sy10 scaled \magstep1}
  -% The smallcaps and symbol fonts should actually be scaled \magstep1.5,
  -% but that is not a standard magnification.
  -
  -% Fonts for title page:
  -\setfont\titlerm{bx12 scaled \magstep3}
  -\let\authorrm = \secrm
  +\setfont\chapsc\scbshape{10}{\magstep3}
  +\font\chapi=cmmi12 scaled \magstep2
  +\font\chapsy=cmsy10 scaled \magstep3
  +
  +% Section fonts (14.4pt).
  +\def\secnominalsize{14pt}
  +\setfont\secrm\rmbshape{12}{\magstep1}
  +\setfont\secit\itbshape{10}{\magstep2}
  +\setfont\secsl\slbshape{10}{\magstep2}
  +\setfont\sectt\ttbshape{12}{\magstep1}
  +\setfont\secttsl\ttslshape{10}{\magstep2}
  +\setfont\secsf\sfbshape{12}{\magstep1}
  +\let\secbf\secrm
  +\setfont\secsc\scbshape{10}{\magstep2}
  +\font\seci=cmmi12 scaled \magstep1
  +\font\secsy=cmsy10 scaled \magstep2
  +
  +% Subsection fonts (13.15pt).
  +\def\ssecnominalsize{13pt}
  +\setfont\ssecrm\rmbshape{12}{\magstephalf}
  +\setfont\ssecit\itbshape{10}{1315}
  +\setfont\ssecsl\slbshape{10}{1315}
  +\setfont\ssectt\ttbshape{12}{\magstephalf}
  +\setfont\ssecttsl\ttslshape{10}{1315}
  +\setfont\ssecsf\sfbshape{12}{\magstephalf}
  +\let\ssecbf\ssecrm
  +\setfont\ssecsc\scbshape{10}{1315}
  +\font\sseci=cmmi12 scaled \magstephalf
  +\font\ssecsy=cmsy10 scaled 1315
  +
  +% Reduced fonts for @acro in text (10pt).
  +\def\reducednominalsize{10pt}
  +\setfont\reducedrm\rmshape{10}{1000}
  +\setfont\reducedtt\ttshape{10}{1000}
  +\setfont\reducedbf\bfshape{10}{1000}
  +\setfont\reducedit\itshape{10}{1000}
  +\setfont\reducedsl\slshape{10}{1000}
  +\setfont\reducedsf\sfshape{10}{1000}
  +\setfont\reducedsc\scshape{10}{1000}
  +\setfont\reducedttsl\ttslshape{10}{1000}
  +\font\reducedi=cmmi10
  +\font\reducedsy=cmsy10
   
   % In order for the font changes to affect most math symbols and letters,
   % we have to define the \textfont of the standard families.  Since
  -% texinfo doesn't allow for producing subscripts and superscripts, we
  -% don't bother to reset \scriptfont and \scriptscriptfont (which would
  -% also require loading a lot more fonts).
  +% texinfo doesn't allow for producing subscripts and superscripts except
  +% in the main text, we don't bother to reset \scriptfont and
  +% \scriptscriptfont (which would also require loading a lot more fonts).
   %
   \def\resetmathfonts{%
  -  \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
  -  \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
  -  \textfont\ttfam = \tentt \textfont\sffam = \tensf
  +  \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
  +  \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
  +  \textfont\ttfam=\tentt \textfont\sffam=\tensf
   }
   
  -
   % The font-changing commands redefine the meanings of \tenSTYLE, instead
  -% of just \STYLE.  We do this so that font changes will continue to work
  -% in math mode, where it is the current \fam that is relevant in most
  -% cases, not the current.  Plain TeX does, for example,
  -% \def\bf{\fam=\bffam \tenbf}  By redefining \tenbf, we obviate the need
  -% to redefine \bf itself.
  +% of just \STYLE.  We do this because \STYLE needs to also set the
  +% current \fam for math mode.  Our \STYLE (e.g., \rm) commands hardwire
  +% \tenSTYLE to set the current font.
  +%
  +% Each font-changing command also sets the names \lsize (one size lower)
  +% and \lllsize (three sizes lower).  These relative commands are used in
  +% the LaTeX logo and acronyms.
  +%
  +% This all needs generalizing, badly.
  +%
   \def\textfonts{%
     \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
     \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
     \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
  -  \resetmathfonts}
  +  \let\tenttsl=\textttsl
  +  \def\curfontsize{text}%
  +  \def\lsize{reduced}\def\lllsize{smaller}%
  +  \resetmathfonts \setleading{\textleading}}
  +\def\titlefonts{%
  +  \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
  +  \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
  +  \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
  +  \let\tenttsl=\titlettsl
  +  \def\curfontsize{title}%
  +  \def\lsize{chap}\def\lllsize{subsec}%
  +  \resetmathfonts \setleading{25pt}}
  +\def\titlefont#1{{\titlefonts\rm #1}}
   \def\chapfonts{%
     \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
     \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
     \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy
  -  \resetmathfonts}
  +  \let\tenttsl=\chapttsl
  +  \def\curfontsize{chap}%
  +  \def\lsize{sec}\def\lllsize{text}%
  +  \resetmathfonts \setleading{19pt}}
   \def\secfonts{%
     \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
     \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
     \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
  -  \resetmathfonts}
  +  \let\tenttsl=\secttsl
  +  \def\curfontsize{sec}%
  +  \def\lsize{subsec}\def\lllsize{reduced}%
  +  \resetmathfonts \setleading{16pt}}
   \def\subsecfonts{%
     \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
     \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
     \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
  -  \resetmathfonts}
  -\def\indexfonts{%
  -  \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl
  -  \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc
  -  \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy
  -  \resetmathfonts}
  +  \let\tenttsl=\ssecttsl
  +  \def\curfontsize{ssec}%
  +  \def\lsize{text}\def\lllsize{small}%
  +  \resetmathfonts \setleading{15pt}}
  +\let\subsubsecfonts = \subsecfonts
  +\def\reducedfonts{%
  +  \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl
  +  \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc
  +  \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy
  +  \let\tenttsl=\reducedttsl
  +  \def\curfontsize{reduced}%
  +  \def\lsize{small}\def\lllsize{smaller}%
  +  \resetmathfonts \setleading{10.5pt}}
  +\def\smallfonts{%
  +  \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
  +  \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
  +  \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
  +  \let\tenttsl=\smallttsl
  +  \def\curfontsize{small}%
  +  \def\lsize{smaller}\def\lllsize{smaller}%
  +  \resetmathfonts \setleading{10.5pt}}
  +\def\smallerfonts{%
  +  \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
  +  \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
  +  \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
  +  \let\tenttsl=\smallerttsl
  +  \def\curfontsize{smaller}%
  +  \def\lsize{smaller}\def\lllsize{smaller}%
  +  \resetmathfonts \setleading{9.5pt}}
  +
  +% Set the fonts to use with the @small... environments.
  +\let\smallexamplefonts = \smallfonts
  +
  +% About \smallexamplefonts.  If we use \smallfonts (9pt), @smallexample
  +% can fit this many characters:
  +%   8.5x11=86   smallbook=72  a4=90  a5=69
  +% If we use \scriptfonts (8pt), then we can fit this many characters:
  +%   8.5x11=90+  smallbook=80  a4=90+  a5=77
  +% For me, subjectively, the few extra characters that fit aren't worth
  +% the additional smallness of 8pt.  So I'm making the default 9pt.
  +%
  +% By the way, for comparison, here's what fits with @example (10pt):
  +%   8.5x11=71  smallbook=60  a4=75  a5=58
  +%
  +% I wish the USA used A4 paper.
  +% --karl, 24jan03.
  +
   
   % Set up the default fonts, so we can use them for creating boxes.
   %
  -\textfonts
  +\textfonts \rm
  +
  +% Define these so they can be easily changed for other fonts.
  +\def\angleleft{$\langle$}
  +\def\angleright{$\rangle$}
   
   % Count depth in font-changes, for error checks
   \newcount\fontdepth \fontdepth=0
   
   % Fonts for short table of contents.
  -\setfont\shortcontrm{r12}
  -\setfont\shortcontbf{bx12}
  -\setfont\shortcontsl{sl12}
  +\setfont\shortcontrm\rmshape{12}{1000}
  +\setfont\shortcontbf\bfshape{10}{\magstep1}  % no cmb12
  +\setfont\shortcontsl\slshape{12}{1000}
  +\setfont\shortconttt\ttshape{12}{1000}
   
   %% Add scribe-like font environments, plus @l for inline lisp (usually sans
   %% serif) and @ii for TeX italic
   
   % \smartitalic{ARG} outputs arg in italics, followed by an italic correction
   % unless the following character is such as not to need one.
  -\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
  -\def\smartitalic#1{{\sl #1}\futurelet\next\smartitalicx}
  +\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else
  +                    \ptexslash\fi\fi\fi}
  +\def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx}
  +\def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx}
  +
  +% like \smartslanted except unconditionally uses \ttsl.
  +% @var is set to this for defun arguments.
  +\def\ttslanted#1{{\ttsl #1}\futurelet\next\smartitalicx}
  +
  +% like \smartslanted except unconditionally use \sl.  We never want
  +% ttsl for book titles, do we?
  +\def\cite#1{{\sl #1}\futurelet\next\smartitalicx}
   
   \let\i=\smartitalic
  -\let\var=\smartitalic
  -\let\dfn=\smartitalic
  +\let\slanted=\smartslanted
  +\let\var=\smartslanted
  +\let\dfn=\smartslanted
   \let\emph=\smartitalic
  -\let\cite=\smartitalic
   
  +% @b, explicit bold.
   \def\b#1{{\bf #1}}
   \let\strong=\b
   
  +% @sansserif, explicit sans.
  +\def\sansserif#1{{\sf #1}}
  +
   % We can't just use \exhyphenpenalty, because that only has effect at
   % the end of a paragraph.  Restore normal hyphenation at the end of the
   % group within which \nohyphenation is presumably called.
  @@ -1080,17 +1810,44 @@
   \def\nohyphenation{\hyphenchar\font = -1  \aftergroup\restorehyphenation}
   \def\restorehyphenation{\hyphenchar\font = `- }
   
  +% Set sfcode to normal for the chars that usually have another value.
  +% Can't use plain's \frenchspacing because it uses the `\x notation, and
  +% sometimes \x has an active definition that messes things up.
  +%
  address@hidden
  +  \def\plainfrenchspacing{%
  +    \sfcode\dotChar  address@hidden address@hidden address@hidden
  +    address@hidden \sfcode\semiChar address@hidden \sfcode\commaChar 
address@hidden
  +    \def\endofsentencespacefactor{1000}% for @. and friends
  +  }
  +  \def\plainnonfrenchspacing{%
  +    \sfcode`\.3000\sfcode`\?3000\sfcode`\!3000
  +    \sfcode`\:2000\sfcode`\;1500\sfcode`\,1250
  +    \def\endofsentencespacefactor{3000}% for @. and friends
  +  }
  address@hidden
  +\def\endofsentencespacefactor{3000}% default
  +
   \def\t#1{%
  -  {\tt \nohyphenation \rawbackslash \frenchspacing #1}%
  +  {\tt \rawbackslash \plainfrenchspacing #1}%
     \null
   }
  -\let\ttfont = \t
  -%\def\samp #1{`{\tt \rawbackslash \frenchspacing #1}'\null}
  -\def\samp #1{`\tclose{#1}'\null}
  -\def\key #1{{\tt \nohyphenation \uppercase{#1}}\null}
  +\def\samp#1{`\tclose{#1}'\null}
  +\setfont\keyrm\rmshape{8}{1000}
  +\font\keysy=cmsy9
  +\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
  +  \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
  +    \vbox{\hrule\kern-0.4pt
  +     \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
  +    \kern-0.4pt\hrule}%
  +  \kern-.06em\raise0.4pt\hbox{\angleright}}}}
  +% The old definition, with no lozenge:
  +%\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
   \def\ctrl #1{{\tt \rawbackslash \hat}#1}
   
  +% @file, @option are the same as @samp.
   \let\file=\samp
  +\let\option=\samp
   
   % @code is a modification of @t,
   % which makes spaces the same size as normal in the surrounding text.
  @@ -1109,62 +1866,280 @@
       \nohyphenation
       %
       \rawbackslash
  -    \frenchspacing
  +    \plainfrenchspacing
       #1%
     }%
     \null
   }
   
  -% We *must* turn on hyphenation at `-' and `_' in \code.
  -% Otherwise, it is too hard to avoid overful hboxes
  +% We *must* turn on hyphenation at `-' and `_' in @code.
  +% Otherwise, it is too hard to avoid overfull hboxes
   % in the Emacs manual, the Library manual, etc.
   
   % Unfortunately, TeX uses one parameter (\hyphenchar) to control
   % both hyphenation at - and hyphenation within words.
   % We must therefore turn them both off (\tclose does that)
  -% and arrange explicitly to hyphenate an a dash.
  +% and arrange explicitly to hyphenate at a dash.
   %  -- rms.
   {
  -\catcode`\-=\active
  -\catcode`\_=\active
  -\global\def\code{\begingroup \catcode`\-=\active \let-\codedash 
\catcode`\_=\active \let_\codeunder \codex}
  -% The following is used by \doprintindex to insure that long function names
  -% wrap around.  It is necessary for - and _ to be active before the index is
  -% read from the file, as \entry parses the arguments long before \code is
  -% ever called.  -- mycroft
  -\global\def\indexbreaks{\catcode`\-=\active \let-\realdash 
\catcode`\_=\active \let_\realunder}
  +  \catcode`\-=\active
  +  \catcode`\_=\active
  +  %
  +  \global\def\code{\begingroup
  +    \catcode`\-=\active  \catcode`\_=\active
  +    \ifallowcodebreaks
  +     \let-\codedash
  +     \let_\codeunder
  +    \else
  +     \let-\realdash
  +     \let_\realunder
  +    \fi
  +    \codex
  +  }
   }
  +
   \def\realdash{-}
  -\def\realunder{_}
   \def\codedash{-\discretionary{}{}{}}
  -\def\codeunder{\normalunderscore\discretionary{}{}{}}
  +\def\codeunder{%
  +  % this is all so @address@hidden can work.  In math mode, _
  +  % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
  +  % will therefore expand the active definition of _, which is us
  +  % (inside @code that is), therefore an endless loop.
  +  \ifusingtt{\ifmmode
  +               \mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_.
  +             \else\normalunderscore \fi
  +             \discretionary{}{}{}}%
  +            {\_}%
  +}
   \def\codex #1{\tclose{#1}\endgroup}
   
  -%\let\exp=\tclose  %Was temporary
  +% An additional complication: the above will allow breaks after, e.g.,
  +% each of the four underscores in __typeof__.  This is undesirable in
  +% some manuals, especially if they don't have long identifiers in
  +% general.  @allowcodebreaks provides a way to control this.
  +% 
  +\newif\ifallowcodebreaks  \allowcodebreakstrue
  +
  +\def\keywordtrue{true}
  +\def\keywordfalse{false}
  +
  +\parseargdef\allowcodebreaks{%
  +  \def\arg{#1}%
  +  \ifx\arg\keywordtrue
  +    \allowcodebreakstrue
  +  \else\ifx\arg\keywordfalse
  +    \allowcodebreaksfalse
  +  \else
  +    \errhelp = \EMsimple
  +    \errmessage{Unknown @allowcodebreaks option `\arg'}%
  +  \fi\fi
  +}
   
   % @kbd is like @code, except that if the argument is just one @key command,
   % then @kbd has no effect.
   
  +% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
  +%   `example' (@kbd uses ttsl only inside of @example and friends),
  +%   or `code' (@kbd uses normal tty font always).
  +\parseargdef\kbdinputstyle{%
  +  \def\arg{#1}%
  +  \ifx\arg\worddistinct
  +    \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
  +  \else\ifx\arg\wordexample
  +    \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
  +  \else\ifx\arg\wordcode
  +    \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
  +  \else
  +    \errhelp = \EMsimple
  +    \errmessage{Unknown @kbdinputstyle option `\arg'}%
  +  \fi\fi\fi
  +}
  +\def\worddistinct{distinct}
  +\def\wordexample{example}
  +\def\wordcode{code}
  +
  +% Default is `distinct.'
  +\kbdinputstyle distinct
  +
   \def\xkey{\key}
   \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
   \ifx\one\xkey\ifx\threex\three \key{#2}%
  -\else\tclose{\look}\fi
  -\else\tclose{\look}\fi}
  +\else{\tclose{\kbdfont\look}}\fi
  +\else{\tclose{\kbdfont\look}}\fi}
  +
  +% For @indicateurl, @env, @command quotes seem unnecessary, so use \code.
  +\let\indicateurl=\code
  +\let\env=\code
  +\let\command=\code
  +
  +% @uref (abbreviation for `urlref') takes an optional (comma-separated)
  +% second argument specifying the text to display and an optional third
  +% arg as text to display instead of (rather than in addition to) the url
  +% itself.  First (mandatory) arg is the url.  Perhaps eventually put in
  +% a hypertex \special here.
  +%
  +\def\uref#1{\douref #1,,,\finish}
  +\def\douref#1,#2,#3,#4\finish{\begingroup
  +  \unsepspaces
  +  \pdfurl{#1}%
  +  \setbox0 = \hbox{\ignorespaces #3}%
  +  \ifdim\wd0 > 0pt
  +    \unhbox0 % third arg given, show only that
  +  \else
  +    \setbox0 = \hbox{\ignorespaces #2}%
  +    \ifdim\wd0 > 0pt
  +      \ifpdf
  +        \unhbox0             % PDF: 2nd arg given, show only it
  +      \else
  +        \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
  +      \fi
  +    \else
  +      \code{#1}% only url given, so show it
  +    \fi
  +  \fi
  +  \endlink
  +\endgroup}
  +
  +% @url synonym for @uref, since that's how everyone uses it.
  +%
  +\let\url=\uref
  +
  +% rms does not like angle brackets --karl, 17may97.
  +% So now @email is just like @uref, unless we are pdf.
  +%
  +%\def\email#1{\angleleft{\tt #1}\angleright}
  +\ifpdf
  +  \def\email#1{\doemail#1,,\finish}
  +  \def\doemail#1,#2,#3\finish{\begingroup
  +    \unsepspaces
  +    \pdfurl{mailto:#1}%
  +    \setbox0 = \hbox{\ignorespaces #2}%
  +    \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
  +    \endlink
  +  \endgroup}
  +\else
  +  \let\email=\uref
  +\fi
  +
  +% Check if we are currently using a typewriter font.  Since all the
  +% Computer Modern typewriter fonts have zero interword stretch (and
  +% shrink), and it is reasonable to expect all typewriter fonts to have
  +% this property, we can check that font parameter.
  +%
  +\def\ifmonospace{\ifdim\fontdimen3\font=0pt }
   
   % Typeset a dimension, e.g., `in' or `pt'.  The only reason for the
  -% argument is to make the input look right: @dmn{pt} instead of
  -% @dmn{}pt.
  +% argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
   %
   \def\dmn#1{\thinspace #1}
   
   \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
   
  -\def\l#1{{\li #1}\null}              %
  +% @l was never documented to mean ``switch to the Lisp font'',
  +% and it is not used as such in any manual I can find.  We need it for
  +% Polish suppressed-l.  --karl, 22sep96.
  +%\def\l#1{{\li #1}\null}
  +
  +% Explicit font changes: @r, @sc, undocumented @ii.
  +\def\r#1{{\rm #1}}              % roman font
  +\def\sc#1{{\smallcaps#1}}       % smallcaps font
  +\def\ii#1{{\it #1}}             % italic font
  +
  +% @acronym for "FBI", "NATO", and the like.
  +% We print this one point size smaller, since it's intended for
  +% all-uppercase.
  +% 
  +\def\acronym#1{\doacronym #1,,\finish}
  +\def\doacronym#1,#2,#3\finish{%
  +  {\selectfonts\lsize #1}%
  +  \def\temp{#2}%
  +  \ifx\temp\empty \else
  +    \space ({\unsepspaces \ignorespaces \temp \unskip})%
  +  \fi
  +}
  +
  +% @abbr for "Comput. J." and the like.
  +% No font change, but don't do end-of-sentence spacing.
  +% 
  +\def\abbr#1{\doabbr #1,,\finish}
  +\def\doabbr#1,#2,#3\finish{%
  +  {\plainfrenchspacing #1}%
  +  \def\temp{#2}%
  +  \ifx\temp\empty \else
  +    \space ({\unsepspaces \ignorespaces \temp \unskip})%
  +  \fi
  +}
  +
  +% @pounds{} is a sterling sign, which Knuth put in the CM italic font.
  +%
  +\def\pounds{{\it\$}}
  +
  +% @euro{} comes from a separate font, depending on the current style.
  +% We use the free feym* fonts from the eurosym package by Henrik
  +% Theiling, which support regular, slanted, bold and bold slanted (and
  +% "outlined" (blackboard board, sort of) versions, which we don't need).
  +% It is available from http://www.ctan.org/tex-archive/fonts/eurosym.
  +% 
  +% Although only regular is the truly official Euro symbol, we ignore
  +% that.  The Euro is designed to be slightly taller than the regular
  +% font height.
  +% 
  +% feymr - regular
  +% feymo - slanted
  +% feybr - bold
  +% feybo - bold slanted
  +% 
  +% There is no good (free) typewriter version, to my knowledge.
  +% A feymr10 euro is ~7.3pt wide, while a normal cmtt10 char is ~5.25pt wide.
  +% Hmm.
  +% 
  +% Also doesn't work in math.  Do we need to do math with euro symbols?
  +% Hope not.
  +% 
  +% 
  +\def\euro{{\eurofont e}}
  +\def\eurofont{%
  +  % We set the font at each command, rather than predefining it in
  +  % \textfonts and the other font-switching commands, so that
  +  % installations which never need the symbol don't have to have the
  +  % font installed.
  +  % 
  +  % There is only one designed size (nominal 10pt), so we always scale
  +  % that to the current nominal size.
  +  % 
  +  % By the way, simply using "at 1em" works for cmr10 and the like, but
  +  % does not work for cmbx10 and other extended/shrunken fonts.
  +  % 
  +  \def\eurosize{\csname\curfontsize nominalsize\endcsname}%
  +  %
  +  \ifx\curfontstyle\bfstylename 
  +    % bold:
  +    \font\thiseurofont = \ifusingit{feybo10}{feybr10} at \eurosize
  +  \else 
  +    % regular:
  +    \font\thiseurofont = \ifusingit{feymo10}{feymr10} at \eurosize
  +  \fi
  +  \thiseurofont
  +}
  +
  +% @registeredsymbol - R in a circle.  The font for the R should really
  +% be smaller yet, but lllsize is the best we can do for now.
  +% Adapted from the plain.tex definition of \copyright.
  +%
  +\def\registeredsymbol{%
  +  $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}%
  +               \hfil\crcr\Orb}}%
  +    }$%
  +}
  +
  +% Laurent Siebenmann reports \Orb undefined with:
  +%  Textures 1.7.7 (preloaded format=plain 93.10.14)  (68K)  16 APR 2004 02:38
  +% so we'll define it if necessary.
  +% 
  +\ifx\Orb\undefined
  +\def\Orb{\mathhexbox20D}
  +\fi
   
  -\def\r#1{{\rm #1}}           % roman font
  -% Use of \lowercase was suggested.
  -\def\sc#1{{\smallcaps#1}}    % smallcaps font
  -\def\ii#1{{\it #1}}          % italic font
   
   \message{page headings,}
   
  @@ -1172,87 +2147,124 @@
   \newskip\titlepagebottomglue \titlepagebottomglue = 2pc
   
   % First the title page.  Must do @settitle before @titlepage.
  -\def\titlefont#1{{\titlerm #1}}
  -
   \newif\ifseenauthor
   \newif\iffinishedtitlepage
   
  -\def\shorttitlepage{\parsearg\shorttitlepagezzz}
  -\def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm 
\centerline{#1}%
  -     \endgroup\page\hbox{}\page}
  -
  -\def\titlepage{\begingroup \parindent=0pt \textfonts
  -   \let\subtitlerm=\tenrm
  -% I deinstalled the following change because \cmr12 is undefined.
  -% This change was not in the ChangeLog anyway.  --rms.
  -%   \let\subtitlerm=\cmr12
  -   \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt 
\normalbaselines}%
  -   %
  -   \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}%
  -   %
  -   % Leave some space at the very top of the page.
  -   \vglue\titlepagetopglue
  -   %
  -   % Now you can print the title using @title.
  -   \def\title{\parsearg\titlezzz}%
  -   \def\titlezzz##1{\leftline{\titlefont{##1}}
  -                 % print a rule at the page bottom also.
  -                 \finishedtitlepagefalse
  -                 \vskip4pt \hrule height 4pt width \hsize \vskip4pt}%
  -   % No rule at page bottom unless we print one at the top with @title.
  -   \finishedtitlepagetrue
  -   %
  -   % Now you can put text using @subtitle.
  -   \def\subtitle{\parsearg\subtitlezzz}%
  -   \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
  -   %
  -   % @author should come last, but may come many times.
  -   \def\author{\parsearg\authorzzz}%
  -   \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 
1filll\seenauthortrue\fi
  -      {\authorfont \leftline{##1}}}%
  -   %
  -   % Most title ``pages'' are actually two pages long, with space
  -   % at the top of the second.  We don't want the ragged left on the second.
  -   \let\oldpage = \page
  -   \def\page{%
  +% Do an implicit @contents or @shortcontents after @end titlepage if the
  +% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
  +%
  +\newif\ifsetcontentsaftertitlepage
  + \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
  +\newif\ifsetshortcontentsaftertitlepage
  + \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
  +
  +\parseargdef\shorttitlepage{\begingroup\hbox{}\vskip 1.5in \chaprm 
\centerline{#1}%
  +        \endgroup\page\hbox{}\page}
  +
  +\envdef\titlepage{%
  +  % Open one extra group, as we want to close it in the middle of 
\Etitlepage.
  +  \begingroup
  +    \parindent=0pt \textfonts
  +    % Leave some space at the very top of the page.
  +    \vglue\titlepagetopglue
  +    % No rule at page bottom unless we print one at the top with @title.
  +    \finishedtitlepagetrue
  +    %
  +    % Most title ``pages'' are actually two pages long, with space
  +    % at the top of the second.  We don't want the ragged left on the second.
  +    \let\oldpage = \page
  +    \def\page{%
         \iffinishedtitlepage\else
         \finishtitlepage
         \fi
  -      \oldpage
         \let\page = \oldpage
  -      \hbox{}}%
  -%   \def\page{\oldpage \hbox{}}
  +      \page
  +      \null
  +    }%
   }
   
   \def\Etitlepage{%
  -   \iffinishedtitlepage\else
  -      \finishtitlepage
  -   \fi
  -   % It is important to do the page break before ending the group,
  -   % because the headline and footline are only empty inside the group.
  -   % If we use the new definition of \page, we always get a blank page
  -   % after the title page, which we certainly don't want.
  -   \oldpage
  -   \endgroup
  -   \HEADINGSon
  +    \iffinishedtitlepage\else
  +     \finishtitlepage
  +    \fi
  +    % It is important to do the page break before ending the group,
  +    % because the headline and footline are only empty inside the group.
  +    % If we use the new definition of \page, we always get a blank page
  +    % after the title page, which we certainly don't want.
  +    \oldpage
  +  \endgroup
  +  %
  +  % Need this before the \...aftertitlepage checks so that if they are
  +  % in effect the toc pages will come out with page numbers.
  +  \HEADINGSon
  +  %
  +  % If they want short, they certainly want long too.
  +  \ifsetshortcontentsaftertitlepage
  +    \shortcontents
  +    \contents
  +    \global\let\shortcontents = \relax
  +    \global\let\contents = \relax
  +  \fi
  +  %
  +  \ifsetcontentsaftertitlepage
  +    \contents
  +    \global\let\contents = \relax
  +    \global\let\shortcontents = \relax
  +  \fi
   }
   
   \def\finishtitlepage{%
  -   \vskip4pt \hrule height 2pt width \hsize
  -   \vskip\titlepagebottomglue
  -   \finishedtitlepagetrue
  +  \vskip4pt \hrule height 2pt width \hsize
  +  \vskip\titlepagebottomglue
  +  \finishedtitlepagetrue
  +}
  +
  +%%% Macros to be used within @titlepage:
  +
  +\let\subtitlerm=\tenrm
  +\def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}
  +
  +\def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines
  +             \let\tt=\authortt}
  +
  +\parseargdef\title{%
  +  \checkenv\titlepage
  +  \leftline{\titlefonts\rm #1}
  +  % print a rule at the page bottom also.
  +  \finishedtitlepagefalse
  +  \vskip4pt \hrule height 4pt width \hsize \vskip4pt
  +}
  +
  +\parseargdef\subtitle{%
  +  \checkenv\titlepage
  +  {\subtitlefont \rightline{#1}}%
  +}
  +
  +% @author should come last, but may come many times.
  +% It can also be used inside @quotation.
  +%
  +\parseargdef\author{%
  +  \def\temp{\quotation}%
  +  \ifx\thisenv\temp
  +    \def\quotationauthor{#1}% printed in \Equotation.
  +  \else
  +    \checkenv\titlepage
  +    \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi
  +    {\authorfont \leftline{#1}}%
  +  \fi
   }
   
  +
   %%% Set up page headings and footings.
   
   \let\thispage=\folio
   
  -\newtoks \evenheadline    % Token sequence for heading line of even pages
  -\newtoks \oddheadline     % Token sequence for heading line of odd pages
  -\newtoks \evenfootline    % Token sequence for footing line of even pages
  -\newtoks \oddfootline     % Token sequence for footing line of odd pages
  +\newtoks\evenheadline    % headline on even pages
  +\newtoks\oddheadline     % headline on odd pages
  +\newtoks\evenfootline    % footline on even pages
  +\newtoks\oddfootline     % footline on odd pages
   
  -% Now make Tex use those variables
  +% Now make TeX use those variables
   \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
                               \else \the\evenheadline \fi}}
   \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
  @@ -1266,56 +2278,51 @@
   % @evenfooting @thisfile||
   % @oddfooting ||@thisfile
   
  -\def\evenheading{\parsearg\evenheadingxxx}
  -\def\oddheading{\parsearg\oddheadingxxx}
  -\def\everyheading{\parsearg\everyheadingxxx}
  -
  -\def\evenfooting{\parsearg\evenfootingxxx}
  -\def\oddfooting{\parsearg\oddfootingxxx}
  -\def\everyfooting{\parsearg\everyfootingxxx}
   
  address@hidden %
  -
  -\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish}
  -\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{%
  +\def\evenheading{\parsearg\evenheadingxxx}
  +\def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish}
  +\def\evenheadingyyy #1\|#2\|#3\|#4\finish{%
   \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
   
  -\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish}
  -\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{%
  +\def\oddheading{\parsearg\oddheadingxxx}
  +\def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish}
  +\def\oddheadingyyy #1\|#2\|#3\|#4\finish{%
   \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
   
  -\gdef\everyheadingxxx #1{\everyheadingyyy #1@|@|@|@|\finish}
  -\gdef\everyheadingyyy #1@|#2@|#3@|#4\finish{%
  -\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
  -\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
  +\parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
   
  -\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish}
  -\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{%
  +\def\evenfooting{\parsearg\evenfootingxxx}
  +\def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish}
  +\def\evenfootingyyy #1\|#2\|#3\|#4\finish{%
   \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
   
  -\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish}
  -\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{%
  -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
  -
  -\gdef\everyfootingxxx #1{\everyfootingyyy #1@|@|@|@|\finish}
  -\gdef\everyfootingyyy #1@|#2@|#3@|#4\finish{%
  -\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
  -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
  -%
  -}% unbind the catcode of @.
  -
  -% @headings double   turns headings on for double-sided printing.
  -% @headings single   turns headings on for single-sided printing.
  -% @headings off              turns them off.
  -% @headings on               same as @headings double, retained for 
compatibility.
  -% @headings after    turns on double-sided headings after this page.
  -% @headings doubleafter      turns on double-sided headings after this page.
  +\def\oddfooting{\parsearg\oddfootingxxx}
  +\def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish}
  +\def\oddfootingyyy #1\|#2\|#3\|#4\finish{%
  +  \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
  +  %
  +  % Leave some space for the footline.  Hopefully ok to assume
  +  % @evenfooting will not be used by itself.
  +  \global\advance\pageheight by -\baselineskip
  +  \global\advance\vsize by -\baselineskip
  +}
  +
  +\parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}}
  +
  +
  +% @headings double      turns headings on for double-sided printing.
  +% @headings single      turns headings on for single-sided printing.
  +% @headings off         turns them off.
  +% @headings on          same as @headings double, retained for compatibility.
  +% @headings after       turns on double-sided headings after this page.
  +% @headings doubleafter turns on double-sided headings after this page.
   % @headings singleafter turns on single-sided headings after this page.
  -% By default, they are off.
  +% By default, they are off at the start of a document,
  +% and turned `on' after @end titlepage.
   
   \def\headings #1 {\csname HEADINGS#1\endcsname}
   
  -\def\HEADINGSoff{
  +\def\HEADINGSoff{%
   \global\evenheadline={\hfil} \global\evenfootline={\hfil}
   \global\oddheadline={\hfil} \global\oddfootline={\hfil}}
   \HEADINGSoff
  @@ -1324,23 +2331,25 @@
   % chapter name on inside top of right hand pages, document
   % title on inside top of left hand pages, and page numbers on outside top
   % edge of all pages.
  -\def\HEADINGSdouble{
  -%\pagealignmacro
  +\def\HEADINGSdouble{%
   \global\pageno=1
   \global\evenfootline={\hfil}
   \global\oddfootline={\hfil}
   \global\evenheadline={\line{\folio\hfil\thistitle}}
   \global\oddheadline={\line{\thischapter\hfil\folio}}
  +\global\let\contentsalignmacro = \chapoddpage
   }
  +\let\contentsalignmacro = \chappager
  +
   % For single-sided printing, chapter title goes across top left of page,
   % page number on top right.
  -\def\HEADINGSsingle{
  -%\pagealignmacro
  +\def\HEADINGSsingle{%
   \global\pageno=1
   \global\evenfootline={\hfil}
   \global\oddfootline={\hfil}
   \global\evenheadline={\line{\thischapter\hfil\folio}}
   \global\oddheadline={\line{\thischapter\hfil\folio}}
  +\global\let\contentsalignmacro = \chappager
   }
   \def\HEADINGSon{\HEADINGSdouble}
   
  @@ -1351,6 +2360,7 @@
   \global\oddfootline={\hfil}
   \global\evenheadline={\line{\folio\hfil\thistitle}}
   \global\oddheadline={\line{\thischapter\hfil\folio}}
  +\global\let\contentsalignmacro = \chapoddpage
   }
   
   \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
  @@ -1359,43 +2369,32 @@
   \global\oddfootline={\hfil}
   \global\evenheadline={\line{\thischapter\hfil\folio}}
   \global\oddheadline={\line{\thischapter\hfil\folio}}
  +\global\let\contentsalignmacro = \chappager
   }
   
   % Subroutines used in generating headings
  -% Produces Day Month Year style of output.
  -\def\today{\number\day\space
  -\ifcase\month\or
  -January\or February\or March\or April\or May\or June\or
  -July\or August\or September\or October\or November\or December\fi
  -\space\number\year}
  -
  -% Use this if you want the Month Day, Year style of output.
  -%\def\today{\ifcase\month\or
  -%January\or February\or March\or April\or May\or June\or
  -%July\or August\or September\or October\or November\or December\fi
  -%\space\number\day, \number\year}
  -
  -% @settitle line...  specifies the title of the document, for headings
  -% It generates no output of its own
  -
  -\def\thistitle{No Title}
  -\def\settitle{\parsearg\settitlezzz}
  -\def\settitlezzz #1{\gdef\thistitle{#1}}
  -
  -\message{tables,}
  -
  -% @tabs -- simple alignment
  +% This produces Day Month Year style of output.
  +% Only define if not already defined, in case a txi-??.tex file has set
  +% up a different format (e.g., txi-cs.tex does this).
  +\ifx\today\undefined
  +\def\today{%
  +  \number\day\space
  +  \ifcase\month
  +  \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
  +  \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
  +  \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
  +  \fi
  +  \space\number\year}
  +\fi
   
  -% These don't work.  For one thing, \+ is defined as outer.
  -% So these macros cannot even be defined.
  +% @settitle line...  specifies the title of the document, for headings.
  +% It generates no output of its own.
  +\def\thistitle{\putwordNoTitle}
  +\def\settitle{\parsearg{\gdef\thistitle}}
   
  -%\def\tabs{\parsearg\tabszzz}
  -%\def\tabszzz #1{\settabs\+#1\cr}
  -%\def\tabline{\parsearg\tablinezzz}
  -%\def\tablinezzz #1{\+#1\cr}
  -%\def\&{&}
   
  -% Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x).
  +\message{tables,}
  +% Tables -- @table, @ftable, @vtable, @item(x).
   
   % default indentation of table text
   \newdimen\tableindent \tableindent=.8in
  @@ -1407,42 +2406,25 @@
   % used internally for \itemindent minus \itemmargin
   \newdimen\itemmax
   
  -% Note @table, @vtable, and @vtable define @item, @itemx, etc., with
  +% Note @table, @ftable, and @vtable define @item, @itemx, etc., with
   % these defs.
   % They also define \itemindex
   % to index the item name in whatever manner is desired (perhaps none).
   
   \newif\ifitemxneedsnegativevskip
   
  -\def\itemxpar{\par\ifitemxneedsnegativevskip\vskip-\parskip\nobreak\fi}
  
+\def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
   
   \def\internalBitem{\smallbreak \parsearg\itemzzz}
   \def\internalBitemx{\itemxpar \parsearg\itemzzz}
   
  -\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak 
\parsearg\xitemzzz}
  -\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar 
\parsearg\xitemzzz}
  -
  -\def\internalBkitem{\smallbreak \parsearg\kitemzzz}
  -\def\internalBkitemx{\itemxpar \parsearg\kitemzzz}
  -
  -\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
  -                 \itemzzz {#1}}
  -
  -\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}%
  -                 \itemzzz {#1}}
  -
   \def\itemzzz #1{\begingroup %
     \advance\hsize by -\rightskip
     \advance\hsize by -\tableindent
  -  \setbox0=\hbox{\itemfont{#1}}%
  +  \setbox0=\hbox{\itemindicate{#1}}%
     \itemindex{#1}%
     \nobreak % This prevents a break before @itemx.
     %
  -  % Be sure we are not still in the middle of a paragraph.
  -  %{\parskip = 0in
  -  %\par
  -  %}%
  -  %
     % If the item text does not fit in the space we have, put it on a line
     % by itself, and do not allow a page break either before or after that
     % line.  We do not start a paragraph here because then if the next
  @@ -1463,114 +2445,132 @@
       % \parskip glue -- logically it's part of the @item we just started.
       \nobreak \vskip-\parskip
       %
  -    % Stop a page break at the \parskip glue coming up.  Unfortunately
  -    % we can't prevent a possible page break at the following
  -    % \baselineskip glue.
  -    \nobreak
  +    % Stop a page break at the \parskip glue coming up.  However, if
  +    % what follows is an environment such as @example, there will be no
  +    % \parskip glue; then the negative vskip we just inserted would
  +    % cause the example and the item to crash together.  So we use this
  +    % bizarre value of 10001 as a signal to \aboveenvbreak to insert
  +    % \parskip glue after all.  Section titles are handled this way also.
  +    % 
  +    \penalty 10001
       \endgroup
       \itemxneedsnegativevskipfalse
     \else
       % The item text fits into the space.  Start a paragraph, so that the
  -    % following text (if any) will end up on the same line.  Since that
  -    % text will be indented by \tableindent, we make the item text be in
  -    % a zero-width box.
  +    % following text (if any) will end up on the same line.
       \noindent
  -    \rlap{\hskip -\tableindent\box0}\ignorespaces%
  -    \endgroup%
  -    \itemxneedsnegativevskiptrue%
  -  \fi
  -}
  -
  address@hidden while not in a table}}
  address@hidden while not in a table}}
  address@hidden while not in a table}}
  address@hidden while not in a table}}
  address@hidden while not in a table}}
  address@hidden while not in a table}}
  -
  -%% Contains a kludge to get @end[description] to work
  -\def\description{\tablez{\dontindex}{1}{}{}{}{}}
  -
  -\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
  -{\obeylines\obeyspaces%
  -\gdef\tablex #1^^M{%
  -\tabley\dontindex#1        \endtabley}}
  -
  -\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
  -{\obeylines\obeyspaces%
  -\gdef\ftablex #1^^M{%
  -\tabley\fnitemindex#1        \endtabley
  -\def\Eftable{\endgraf\afterenvbreak\endgroup}%
  -\let\Etable=\relax}}
  -
  -\def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
  -{\obeylines\obeyspaces%
  -\gdef\vtablex #1^^M{%
  -\tabley\vritemindex#1        \endtabley
  -\def\Evtable{\endgraf\afterenvbreak\endgroup}%
  -\let\Etable=\relax}}
  -
  -\def\dontindex #1{}
  -\def\fnitemindex #1{\doind {fn}{\code{#1}}}%
  -\def\vritemindex #1{\doind {vr}{\code{#1}}}%
  -
  -{\obeyspaces %
  -\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
  -\tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
  -
  -\def\tablez #1#2#3#4#5#6{%
  -\aboveenvbreak %
  -\begingroup %
  -\def\Edescription{\Etable}% Neccessary kludge.
  -\let\itemindex=#1%
  -\ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
  -\ifnum 0#4>0 \tableindent=#4\mil \fi %
  -\ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
  -\def\itemfont{#2}%
  -\itemmax=\tableindent %
  -\advance \itemmax by -\itemmargin %
  -\advance \leftskip by \tableindent %
  -\exdentamount=\tableindent
  -\parindent = 0pt
  -\parskip = \smallskipamount
  -\ifdim \parskip=0pt \parskip=2pt \fi%
  -\def\Etable{\endgraf\afterenvbreak\endgroup}%
  -\let\item = \internalBitem %
  -\let\itemx = \internalBitemx %
  -\let\kitem = \internalBkitem %
  -\let\kitemx = \internalBkitemx %
  -\let\xitem = \internalBxitem %
  -\let\xitemx = \internalBxitemx %
  +    % Do this with kerns and \unhbox so that if there is a footnote in
  +    % the item text, it can migrate to the main vertical list and
  +    % eventually be printed.
  +    \nobreak\kern-\tableindent
  +    \dimen0 = \itemmax  \advance\dimen0 by \itemmargin \advance\dimen0 by 
-\wd0
  +    \unhbox0
  +    \nobreak\kern\dimen0
  +    \endgroup
  +    \itemxneedsnegativevskiptrue
  +  \fi
  +}
  +
  address@hidden while not in a list environment}}
  address@hidden while not in a list environment}}
  +
  +% @table, @ftable, @vtable.
  +\envdef\table{%
  +  \let\itemindex\gobble
  +  \tablecheck{table}%
  +}
  +\envdef\ftable{%
  +  \def\itemindex ##1{\doind {fn}{\code{##1}}}%
  +  \tablecheck{ftable}%
  +}
  +\envdef\vtable{%
  +  \def\itemindex ##1{\doind {vr}{\code{##1}}}%
  +  \tablecheck{vtable}%
  +}
  +\def\tablecheck#1{%
  +  \ifnum \the\catcode`\^^M=\active
  +    \endgroup
  +    \errmessage{This command won't work in this context; perhaps the problem 
is
  +      that we are \inenvironment\thisenv}%
  +    \def\next{\doignore{#1}}%
  +  \else
  +    \let\next\tablex
  +  \fi
  +  \next
  +}
  +\def\tablex#1{%
  +  \def\itemindicate{#1}%
  +  \parsearg\tabley
   }
  +\def\tabley#1{%
  +  {%
  +    \makevalueexpandable
  +    \edef\temp{\noexpand\tablez #1\space\space\space}%
  +    \expandafter
  +  }\temp \endtablez
  +}
  +\def\tablez #1 #2 #3 #4\endtablez{%
  +  \aboveenvbreak
  +  \ifnum 0#1>0 \advance \leftskip by #1\mil \fi
  +  \ifnum 0#2>0 \tableindent=#2\mil \fi
  +  \ifnum 0#3>0 \advance \rightskip by #3\mil \fi
  +  \itemmax=\tableindent
  +  \advance \itemmax by -\itemmargin
  +  \advance \leftskip by \tableindent
  +  \exdentamount=\tableindent
  +  \parindent = 0pt
  +  \parskip = \smallskipamount
  +  \ifdim \parskip=0pt \parskip=2pt \fi
  +  \let\item = \internalBitem
  +  \let\itemx = \internalBitemx
  +}
  +\def\Etable{\endgraf\afterenvbreak}
  +\let\Eftable\Etable
  +\let\Evtable\Etable
  +\let\Eitemize\Etable
  +\let\Eenumerate\Etable
   
   % This is the counter used by @enumerate, which is really @itemize
   
   \newcount \itemno
   
  -\def\itemize{\parsearg\itemizezzz}
  +\envdef\itemize{\parsearg\doitemize}
   
  -\def\itemizezzz #1{%
  -  \begingroup % ended by the @end itemsize
  -  \itemizey {#1}{\Eitemize}
  -}
  -
  -\def\itemizey #1#2{%
  -\aboveenvbreak %
  -\itemmax=\itemindent %
  -\advance \itemmax by -\itemmargin %
  -\advance \leftskip by \itemindent %
  -\exdentamount=\itemindent
  -\parindent = 0pt %
  -\parskip = \smallskipamount %
  -\ifdim \parskip=0pt \parskip=2pt \fi%
  -\def#2{\endgraf\afterenvbreak\endgroup}%
  -\def\itemcontents{#1}%
  -\let\item=\itemizeitem}
  +\def\doitemize#1{%
  +  \aboveenvbreak
  +  \itemmax=\itemindent
  +  \advance\itemmax by -\itemmargin
  +  \advance\leftskip by \itemindent
  +  \exdentamount=\itemindent
  +  \parindent=0pt
  +  \parskip=\smallskipamount
  +  \ifdim\parskip=0pt \parskip=2pt \fi
  +  \def\itemcontents{#1}%
  +  % @itemize with no arg is equivalent to @itemize @bullet.
  +  \ifx\itemcontents\empty\def\itemcontents{\bullet}\fi
  +  \let\item=\itemizeitem
  +}
   
  -% Set sfcode to normal for the chars that usually have another value.
  -% These are `.?!:;,'
  -\def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
  -  \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 }
  +% Definition of @item while inside @itemize and @enumerate.
  +%
  +\def\itemizeitem{%
  +  \advance\itemno by 1  % for enumerations
  +  {\let\par=\endgraf \smallbreak}% reasonable place to break
  +  {%
  +   % If the document has an @itemize directly after a section title, a
  +   % \nobreak will be last on the list, and \sectionheading will have
  +   % done a \vskip-\parskip.  In that case, we don't want to zero
  +   % parskip, or the item text will crash with the heading.  On the
  +   % other hand, when there is normal text preceding the item (as there
  +   % usually is), we do want to zero parskip, or there would be too much
  +   % space.  In that case, we won't have a \nobreak before.  At least
  +   % that's the theory.
  +   \ifnum\lastpenalty<10000 \parskip=0in \fi
  +   \noindent
  +   \hbox to 0pt{\hss \itemcontents \kern\itemmargin}%
  +   \vadjust{\penalty 1200}}% not good to break after first line of item.
  +  \flushcr
  +}
   
   % \splitoff TOKENS\endmark defines \first to be the first token in
   % TOKENS, and \rest to be the remainder.
  @@ -1581,11 +2581,8 @@
   % or number, to specify the first label in the enumerated list.  No
   % argument is the same as `1'.
   %
  -\def\enumerate{\parsearg\enumeratezzz}
  -\def\enumeratezzz #1{\enumeratey #1  \endenumeratey}
  +\envparseargdef\enumerate{\enumeratey #1  \endenumeratey}
   \def\enumeratey #1 #2\endenumeratey{%
  -  \begingroup % ended by the @end enumerate
  -  %
     % If we were given no argument, pretend we were given `1'.
     \def\thearg{#1}%
     \ifx\thearg\empty \def\thearg{1}\fi
  @@ -1656,13 +2653,13 @@
     }%
   }
   
  -% Call itemizey, adding a period to the first argument and supplying the
  +% Call \doitemize, adding a period to the first argument and supplying the
   % common last two arguments.  Also subtract one from the initial value in
   % \itemno, since @item increments \itemno.
   %
   \def\startenumeration#1{%
     \advance\itemno by -1
  -  \itemizey{#1.}\Eenumerate\flushcr
  +  \doitemize{#1.}\flushcr
   }
   
   % @alphaenumerate and @capsenumerate are abbreviations for giving an arg
  @@ -1673,22 +2670,12 @@
   \def\Ealphaenumerate{\Eenumerate}
   \def\Ecapsenumerate{\Eenumerate}
   
  -% Definition of @item while inside @itemize.
  -
  -\def\itemizeitem{%
  -\advance\itemno by 1
  -{\let\par=\endgraf \smallbreak}%
  -\ifhmode \errmessage{\in hmode at itemizeitem}\fi
  -{\parskip=0in \hskip 0pt
  -\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
  -\vadjust{\penalty 1200}}%
  -\flushcr}
   
   % @multitable macros
  -% Amy Hendrickson, 8/18/94
  +% Amy Hendrickson, 8/18/94, 3/6/96
   %
  -% @multitable ... @endmultitable will make as many columns as desired.
  -% Contents of each column will wrap at width given in preamble. Width
  +% @multitable ... @end multitable will make as many columns as desired.
  +% Contents of each column will wrap at width given in preamble.  Width
   % can be specified either with sample text given in a template line,
   % or in percent of \hsize, the current width of text on page.
   
  @@ -1696,201 +2683,521 @@
   
   % To make preamble:
   %
  -% Either define widths of columns in terms of percent of \hsize: 
  -%   @multitable @percentofhsize .2 .3 .5
  +% Either define widths of columns in terms of percent of \hsize:
  +%   @multitable @columnfractions .25 .3 .45
   %   @item ...
   %
  -%   Numbers following @percentofhsize are the percent of the total
  +%   Numbers following @columnfractions are the percent of the total
   %   current hsize to be used for each column. You may use as many
   %   columns as desired.
   
  +
   % Or use a template:
   %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
   %   @item ...
   %   using the widest term desired in each column.
   
  -
  -% Each new table line starts with @item, each subsequent new column 
  +% Each new table line starts with @item, each subsequent new column
   % starts with @tab. Empty columns may be produced by supplying @tab's
   % with nothing between them for as many times as empty columns are needed,
   % ie, @address@hidden@tab will produce two empty columns.
   
  -% @item, @tab, @multicolumn or @endmulticolumn do not need to be on their
  -% own lines, but it will not hurt if they are.
  +% @item, @tab do not need to be on their own lines, but it will not hurt
  +% if they are.
   
   % Sample multitable:
   
   %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
   %   @item first col stuff @tab second col stuff @tab third col
  -%   @item 
  -%   first col stuff 
  -%   @tab 
  -%   second col stuff 
  -%   @tab 
  -%   third col 
  -%   @item first col stuff @tab second col stuff 
  +%   @item
  +%   first col stuff
  +%   @tab
  +%   second col stuff
  +%   @tab
  +%   third col
  +%   @item first col stuff @tab second col stuff
   %   @tab Many paragraphs of text may be used in any column.
  -%     
  +%
   %         They will wrap at the width determined by the template.
   %   @address@hidden@tab This will be in third column.
  -%   @endmultitable
  +%   @end multitable
   
   % Default dimensions may be reset by user.
  -% @intableparskip will set vertical space between paragraphs in table.
  -% @intableparindent will set paragraph indent in table.
  -% @spacebetweencols will set horizontal space to be left between columns.
  -% @spacebetweenlines will set vertical space to be left between lines.
  -
  -%%%%
  -% Dimensions 
  -
  -\newdimen\intableparskip
  -\newdimen\intableparindent
  -\newdimen\spacebetweencols
  -\newdimen\spacebetweenlines
  -\intableparskip=0pt
  -\intableparindent=6pt
  -\spacebetweencols=12pt
  -\spacebetweenlines=12pt
  +% @multitableparskip is vertical space between paragraphs in table.
  +% @multitableparindent is paragraph indent in table.
  +% @multitablecolmargin is horizontal space to be left between columns.
  +% @multitablelinespace is space to leave between table items, baseline
  +%                                                            to baseline.
  +%   0pt means it depends on current normal line spacing.
  +%
  +\newskip\multitableparskip
  +\newskip\multitableparindent
  +\newdimen\multitablecolspace
  +\newskip\multitablelinespace
  +\multitableparskip=0pt
  +\multitableparindent=6pt
  +\multitablecolspace=12pt
  +\multitablelinespace=0pt
   
  -%%%%
   % Macros used to set up halign preamble:
  +%
   \let\endsetuptable\relax
   \def\xendsetuptable{\endsetuptable}
  -\let\percentofhsize\relax
  -\def\xpercentofhsize{\percentofhsize}
  +\let\columnfractions\relax
  +\def\xcolumnfractions{\columnfractions}
   \newif\ifsetpercent
   
  +% #1 is the @columnfraction, usually a decimal number like .5, but might
  +% be just 1.  We just use it, whatever it is.
  +%
  +\def\pickupwholefraction#1 {%
  +  \global\advance\colcount by 1
  +  \expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}%
  +  \setuptable
  +}
  +
   \newcount\colcount
  -\def\setuptable#1{\def\firstarg{#1}%
  -\ifx\firstarg\xendsetuptable\let\go\relax%
  -\else
  -  \ifx\firstarg\xpercentofhsize\global\setpercenttrue%
  +\def\setuptable#1{%
  +  \def\firstarg{#1}%
  +  \ifx\firstarg\xendsetuptable
  +    \let\go = \relax
     \else
  -    \ifsetpercent
  -       \if#1.\else%
  -       \global\advance\colcount by1 %
  -       \expandafter\xdef\csname col\the\colcount\endcsname{.#1\hsize}%
  -       \fi
  +    \ifx\firstarg\xcolumnfractions
  +      \global\setpercenttrue
  +    \else
  +      \ifsetpercent
  +         \let\go\pickupwholefraction
  +      \else
  +         \global\advance\colcount by 1
  +         \setbox0=\hbox{#1\unskip\space}% Add a normal word space as a
  +                   % separator; typically that is always in the input, 
anyway.
  +         \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
  +      \fi
  +    \fi
  +    \ifx\go\pickupwholefraction
  +      % Put the argument back for the \pickupwholefraction call, so
  +      % we'll always have a period there to be parsed.
  +      \def\go{\pickupwholefraction#1}%
       \else
  -       \global\advance\colcount by1
  -       \setbox0=\hbox{#1}%
  -       \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
  +      \let\go = \setuptable
       \fi%
  -  \fi%
  -  \let\go\setuptable%
  -\fi\go}
  -%%%%
  -% multitable syntax
  -\def\tab{&}
  -
  -%%%%
  -% @multitable ... @endmultitable definitions:
  -
  -\def\multitable#1\item{\bgroup
  -\let\item\cr
  -\tolerance=9500
  -\hbadness=9500
  -\parskip=\intableparskip
  -\parindent=\intableparindent
  -\overfullrule=0pt
  -\global\colcount=0\relax%
  -\def\Emultitable{\global\setpercentfalse\global\everycr{}\cr\egroup\egroup}%
  - % To parse everything between @multitable and @item :
  -\def\one{#1}\expandafter\setuptable\one\endsetuptable
  - % Need to reset this to 0 after \setuptable.
  -\global\colcount=0\relax% 
  - %
  - % This preamble sets up a generic column definition, which will
  - % be used as many times as user calls for columns.
  - % \vtop will set a single line and will also let text wrap and 
  - % continue for many paragraphs if desired.
  -\halign\bgroup&\global\advance\colcount by 1\relax%
  -\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname
  - % In order to keep entries from bumping into each other
  - % we will add a \leftskip of \spacebetweencols to all columns after
  - % the first one.
  - %  If a template has been used, we will add \spacebetweencols 
  - % to the width of each template entry.
  - %  If user has set preamble in terms of percent of \hsize
  - % we will use that dimension as the width of the column, and
  - % the \leftskip will keep entries from bumping into each other.
  - % Table will start at left margin and final column will justify at
  - % right margin.
  -\ifnum\colcount=1
  -\else
  -  \ifsetpercent
  -  \else
  -   % If user has <not> set preamble in terms of percent of \hsize
  -   % we will advance \hsize by \spacebetweencols 
  -  \advance\hsize by \spacebetweencols
     \fi
  - % In either case we will make \leftskip=\spacebetweencols:
  -\leftskip=\spacebetweencols
  +  \go
  +}
  +
  +% multitable-only commands.
  +%
  +% @headitem starts a heading row, which we typeset in bold.
  +% Assignments have to be global since we are inside the implicit group
  +% of an alignment entry.  Note that \everycr resets \everytab.
  +\def\headitem{\checkenv\multitable \crcr 
\global\everytab={\bf}\the\everytab}%
  +%
  +% A \tab used to include \hskip1sp.  But then the space in a template
  +% line is not enough.  That is bad.  So let's go back to just `&' until
  +% we encounter the problem it was intended to solve again.
  +%                                    --karl, address@hidden, 20apr99.
  +\def\tab{\checkenv\multitable &\the\everytab}%
  +
  +% @multitable ... @end multitable definitions:
  +%
  +\newtoks\everytab  % insert after every tab.
  +%
  +\envdef\multitable{%
  +  \vskip\parskip
  +  \startsavinginserts
  +  %
  +  % @item within a multitable starts a normal row.
  +  % We use \def instead of \let so that if one of the multitable entries
  +  % contains an @itemize, we don't choke on the \item (seen as \crcr aka
  +  % \endtemplate) expanding \doitemize.
  +  \def\item{\crcr}%
  +  %
  +  \tolerance=9500
  +  \hbadness=9500
  +  \setmultitablespacing
  +  \parskip=\multitableparskip
  +  \parindent=\multitableparindent
  +  \overfullrule=0pt
  +  \global\colcount=0
  +  %
  +  \everycr = {%
  +    \noalign{%
  +      \global\everytab={}%
  +      \global\colcount=0 % Reset the column counter.
  +      % Check for saved footnotes, etc.
  +      \checkinserts
  +      % Keeps underfull box messages off when table breaks over pages.
  +      %\filbreak
  +     % Maybe so, but it also creates really weird page breaks when the
  +     % table breaks over pages. Wouldn't \vfil be better?  Wait until the
  +     % problem manifests itself, so it can be fixed for real --karl.
  +    }%
  +  }%
  +  %
  +  \parsearg\domultitable
  +}
  +\def\domultitable#1{%
  +  % To parse everything between @multitable and @item:
  +  \setuptable#1 \endsetuptable
  +  %
  +  % This preamble sets up a generic column definition, which will
  +  % be used as many times as user calls for columns.
  +  % \vtop will set a single line and will also let text wrap and
  +  % continue for many paragraphs if desired.
  +  \halign\bgroup &%
  +    \global\advance\colcount by 1
  +    \multistrut
  +    \vtop{%
  +      % Use the current \colcount to find the correct column width:
  +      \hsize=\expandafter\csname col\the\colcount\endcsname
  +      %
  +      % In order to keep entries from bumping into each other
  +      % we will add a \leftskip of \multitablecolspace to all columns after
  +      % the first one.
  +      %
  +      % If a template has been used, we will add \multitablecolspace
  +      % to the width of each template entry.
  +      %
  +      % If the user has set preamble in terms of percent of \hsize we will
  +      % use that dimension as the width of the column, and the \leftskip
  +      % will keep entries from bumping into each other.  Table will start at
  +      % left margin and final column will justify at right margin.
  +      %
  +      % Make sure we don't inherit \rightskip from the outer environment.
  +      \rightskip=0pt
  +      \ifnum\colcount=1
  +     % The first column will be indented with the surrounding text.
  +     \advance\hsize by\leftskip
  +      \else
  +     \ifsetpercent \else
  +       % If user has not set preamble in terms of percent of \hsize
  +       % we will advance \hsize by \multitablecolspace.
  +       \advance\hsize by \multitablecolspace
  +     \fi
  +       % In either case we will make \leftskip=\multitablecolspace:
  +      \leftskip=\multitablecolspace
  +      \fi
  +      % Ignoring space at the beginning and end avoids an occasional spurious
  +      % blank line, when TeX decides to break the line at the space before 
the
  +      % box from the multistrut, so the strut ends up on a line by itself.
  +      % For example:
  +      % @multitable @columnfractions .11 .89
  +      % @item @code{#}
  +      % @tab Legal holiday which is valid in major parts of the whole 
country.
  +      % Is automatically provided with highlighting sequences respectively
  +      % marking characters.
  +      \noindent\ignorespaces##\unskip\multistrut
  +    }\cr
  +}
  +\def\Emultitable{%
  +  \crcr
  +  \egroup % end the \halign
  +  \global\setpercentfalse
  +}
  +
  +\def\setmultitablespacing{%
  +  \def\multistrut{\strut}% just use the standard line spacing
  +  %
  +  % Compute \multitablelinespace (if not defined by user) for use in
  +  % \multitableparskip calculation.  We used define \multistrut based on
  +  % this, but (ironically) that caused the spacing to be off.
  +  % See bug-texinfo report from Werner Lemberg, 31 Oct 2004 12:52:20 +0100.
  +\ifdim\multitablelinespace=0pt
  +\setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
  +\global\advance\multitablelinespace by-\ht0
   \fi
  -\noindent##}\cr%
  - % \everycr will reset column counter, \colcount, at the end of
  - % each line. Every column  entry will cause \colcount to advance by one. 
  - % The table preamble
  - % looks at the current \colcount to find the correct column width.
  -\global\everycr{\noalign{\nointerlineskip\vskip\spacebetweenlines
  -\filbreak%% keeps underfull box messages off when table breaks over pages.
  -\global\colcount=0\relax}}}
  +%% Test to see if parskip is larger than space between lines of
  +%% table. If not, do nothing.
  +%%        If so, set to same dimension as multitablelinespace.
  +\ifdim\multitableparskip>\multitablelinespace
  +\global\multitableparskip=\multitablelinespace
  +\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
  +                                      %% than skip between lines in the 
table.
  +\fi%
  +\ifdim\multitableparskip=0pt
  +\global\multitableparskip=\multitablelinespace
  +\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
  +                                      %% than skip between lines in the 
table.
  +\fi}
  +
  +
  +\message{conditionals,}
  +
  +% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext,
  +% @ifnotxml always succeed.  They currently do nothing; we don't
  +% attempt to check whether the conditionals are properly nested.  But we
  +% have to remember that they are conditionals, so that @end doesn't
  +% attempt to close an environment group.
  +%
  +\def\makecond#1{%
  +  \expandafter\let\csname #1\endcsname = \relax
  +  \expandafter\let\csname iscond.#1\endcsname = 1
  +}
  +\makecond{iftex}
  +\makecond{ifnotdocbook}
  +\makecond{ifnothtml}
  +\makecond{ifnotinfo}
  +\makecond{ifnotplaintext}
  +\makecond{ifnotxml}
  +
  +% Ignore @ignore, @ifhtml, @ifinfo, and the like.
  +%
  +\def\direntry{\doignore{direntry}}
  +\def\documentdescription{\doignore{documentdescription}}
  +\def\docbook{\doignore{docbook}}
  +\def\html{\doignore{html}}
  +\def\ifdocbook{\doignore{ifdocbook}}
  +\def\ifhtml{\doignore{ifhtml}}
  +\def\ifinfo{\doignore{ifinfo}}
  +\def\ifnottex{\doignore{ifnottex}}
  +\def\ifplaintext{\doignore{ifplaintext}}
  +\def\ifxml{\doignore{ifxml}}
  +\def\ignore{\doignore{ignore}}
  +\def\menu{\doignore{menu}}
  +\def\xml{\doignore{xml}}
  +
  +% Ignore text until a line address@hidden #1', keeping track of nested 
conditionals.
  +%
  +% A count to remember the depth of nesting.
  +\newcount\doignorecount
  +
  +\def\doignore#1{\begingroup
  +  % Scan in ``verbatim'' mode:
  +  \catcode`\@ = \other
  +  \catcode`\{ = \other
  +  \catcode`\} = \other
  +  %
  +  % Make sure that spaces turn into tokens that match what \doignoretext 
wants.
  +  \spaceisspace
  +  %
  +  % Count number of #1's that we've seen.
  +  \doignorecount = 0
  +  %
  +  % Swallow text until we reach the matching address@hidden #1'.
  +  \dodoignore{#1}%
  +}
  +
  +{ \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo 
source.
  +  \obeylines %
  +  %
  +  \gdef\dodoignore#1{%
  +    % #1 contains the command name as a string, e.g., `ifinfo'.
  +    %
  +    % Define a command to find the next address@hidden #1', which must be on 
a line
  +    % by itself.
  +    address@hidden address@hidden
  +    % And this command to find another #1 command, at the beginning of a
  +    % line.  (Otherwise, we would consider a line address@hidden @ifset', for
  +    % example, to count as an @ifset for nesting.)
  +    address@hidden
  +    %
  +    % And now expand that command.
  +    \obeylines %
  +    \doignoretext ^^M%
  +  }%
  +}
  +
  +\def\doignoreyyy#1{%
  +  \def\temp{#1}%
  +  \ifx\temp\empty                    % Nothing found.
  +    \let\next\doignoretextzzz
  +  \else                                      % Found a nested condition, ...
  +    \advance\doignorecount by 1
  +    \let\next\doignoretextyyy                % ..., look for another.
  +    % If we're here, #1 ends with ^^M\ifinfo (for example).
  +  \fi
  +  \next #1% the token \_STOP_ is present just after this macro.
  +}
  +
  +% We have to swallow the remaining "\_STOP_".
  +%
  +\def\doignoretextzzz#1{%
  +  \ifnum\doignorecount = 0   % We have just found the outermost @end.
  +    \let\next\enddoignore
  +  \else                              % Still inside a nested condition.
  +    \advance\doignorecount by -1
  +    \let\next\doignoretext      % Look for the next @end.
  +  \fi
  +  \next
  +}
  +
  +% Finish off ignored text.
  +\def\enddoignore{\endgroup\ignorespaces}
  +
  +
  +% @set VAR sets the variable VAR to an empty value.
  +% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
  +%
  +% Since we want to separate VAR from REST-OF-LINE (which might be
  +% empty), we can't just use \parsearg; we have to insert a space of our
  +% own to delimit the rest of the line, and then take it out again if we
  +% didn't need it.
  +% We rely on the fact that \parsearg sets \catcode`\ =10.
  +%
  +\parseargdef\set{\setyyy#1 \endsetyyy}
  +\def\setyyy#1 #2\endsetyyy{%
  +  {%
  +    \makevalueexpandable
  +    \def\temp{#2}%
  +    \edef\next{\gdef\makecsname{SET#1}}%
  +    \ifx\temp\empty
  +      \next{}%
  +    \else
  +      \setzzz#2\endsetzzz
  +    \fi
  +  }%
  +}
  +% Remove the trailing space \setxxx inserted.
  +\def\setzzz#1 \endsetzzz{\next{#1}}
  +
  +% @clear VAR clears (i.e., unsets) the variable VAR.
  +%
  +\parseargdef\clear{%
  +  {%
  +    \makevalueexpandable
  +    \global\expandafter\let\csname SET#1\endcsname=\relax
  +  }%
  +}
  +
  +% @value{foo} gets the text saved in variable foo.
  +\def\value{\begingroup\makevalueexpandable\valuexxx}
  +\def\valuexxx#1{\expandablevalue{#1}\endgroup}
  +{
  +  \catcode`\- = \active \catcode`\_ = \active
  +  %
  +  \gdef\makevalueexpandable{%
  +    \let\value = \expandablevalue
  +    % We don't want these characters active, ...
  +    \catcode`\-=\other \catcode`\_=\other
  +    % ..., but we might end up with active ones in the argument if
  +    % we're called from @code, as @address@hidden, though.
  +    % So \let them to their normal equivalents.
  +    \let-\realdash \let_\normalunderscore
  +  }
  +}
  +
  +% We have this subroutine so that we can handle at least some @value's
  +% properly in indexes (we call \makevalueexpandable in \indexdummies).
  +% The command has to be fully expandable (if the variable is set), since
  +% the result winds up in the index file.  This means that if the
  +% variable's value contains other Texinfo commands, it's almost certain
  +% it will fail (although perhaps we could fix that with sufficient work
  +% to do a one-level expansion on the result, instead of complete).
  +%
  +\def\expandablevalue#1{%
  +  \expandafter\ifx\csname SET#1\endcsname\relax
  +    {[No value for ``#1'']}%
  +    \message{Variable `#1', used in @value, is not set.}%
  +  \else
  +    \csname SET#1\endcsname
  +  \fi
  +}
  +
  +% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
  +% with @set.
  +%
  +% To get special treatment of address@hidden ifset,' call \makeond and the 
redefine.
  +%
  +\makecond{ifset}
  +\def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}}
  +\def\doifset#1#2{%
  +  {%
  +    \makevalueexpandable
  +    \let\next=\empty
  +    \expandafter\ifx\csname SET#2\endcsname\relax
  +      #1% If not set, redefine \next.
  +    \fi
  +    \expandafter
  +  }\next
  +}
  +\def\ifsetfail{\doignore{ifset}}
  +
  +% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
  +% defined with @set, or has been undefined with @clear.
  +%
  +% The `\else' inside the `\doifset' parameter is a trick to reuse the
  +% above code: if the variable is not set, do nothing, if it is set,
  +% then redefine \next to \ifclearfail.
  +%
  +\makecond{ifclear}
  +\def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
  +\def\ifclearfail{\doignore{ifclear}}
  +
  +% @dircategory CATEGORY  -- specify a category of the dir file
  +% which this file should belong to.  Ignore this in TeX.
  +\let\dircategory=\comment
  +
  +% @defininfoenclose.
  +\let\definfoenclose=\comment
  +
   
   \message{indexing,}
   % Index generation facilities
   
   % Define \newwrite to be identical to plain tex's \newwrite
  -% except not \outer, so it can be used within \newindex.
  address@hidden
  address@hidden@@n}}
  +% except not \outer, so it can be used within macros and \if's.
  +\edef\newwrite{\makecsname{ptexnewwrite}}
   
   % \newindex {foo} defines an index named foo.
   % It automatically defines \fooindex such that
   % \fooindex ...rest of line... puts an entry in the index foo.
   % It also defines \fooindfile to be the number of the output channel for
  -% the file that      accumulates this index.  The file's extension is foo.
  +% the file that accumulates this index.  The file's extension is foo.
   % The name of an index should be no more than 2 characters long
   % for the sake of vms.
  -
  -\def\newindex #1{
  -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output 
file
  -\openout \csname#1indfile\endcsname \jobname.#1      % Open the file
  -\expandafter\xdef\csname#1index\endcsname{%  % Define \xxxindex
  -\noexpand\doindex {#1}}
  +%
  +\def\newindex#1{%
  +  \iflinks
  +    \expandafter\newwrite \csname#1indfile\endcsname
  +    \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
  +  \fi
  +  \expandafter\xdef\csname#1index\endcsname{%     % Define @#1index
  +    \noexpand\doindex{#1}}
   }
   
   % @defindex foo  ==  \newindex{foo}
  -
  +%
   \def\defindex{\parsearg\newindex}
   
   % Define @defcodeindex, like @defindex except put all entries in @code.
  -
  -\def\newcodeindex #1{
  -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output 
file
  -\openout \csname#1indfile\endcsname \jobname.#1      % Open the file
  -\expandafter\xdef\csname#1index\endcsname{%  % Define \xxxindex
  -\noexpand\docodeindex {#1}}
  +%
  +\def\defcodeindex{\parsearg\newcodeindex}
  +%
  +\def\newcodeindex#1{%
  +  \iflinks
  +    \expandafter\newwrite \csname#1indfile\endcsname
  +    \openout \csname#1indfile\endcsname \jobname.#1
  +  \fi
  +  \expandafter\xdef\csname#1index\endcsname{%
  +    \noexpand\docodeindex{#1}}%
   }
   
  -\def\defcodeindex{\parsearg\newcodeindex}
   
   % @synindex foo bar    makes index foo feed into index bar.
   % Do this instead of @defindex foo if you don't want it as a separate index.
  -\def\synindex #1 #2 {%
  
-\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
  -\expandafter\let\csname#1indfile\endcsname=\synindexfoo
  -\expandafter\xdef\csname#1index\endcsname{%  % Define \xxxindex
  -\noexpand\doindex {#2}}%
  -}
  -
  +%
   % @syncodeindex foo bar   similar, but put all entries made for index foo
   % inside @code.
  -\def\syncodeindex #1 #2 {%
  
-\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
  -\expandafter\let\csname#1indfile\endcsname=\synindexfoo
  -\expandafter\xdef\csname#1index\endcsname{%  % Define \xxxindex
  -\noexpand\docodeindex {#2}}%
  +%
  +\def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
  +\def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
  +
  +% #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
  +% #3 the target index (bar).
  +\def\dosynindex#1#2#3{%
  +  % Only do \closeout if we haven't already done it, else we'll end up
  +  % closing the target index.
  +  \expandafter \ifx\csname donesynindex#2\endcsname \undefined
  +    % The \closeout helps reduce unnecessary open files; the limit on the
  +    % Acorn RISC OS is a mere 16 files.
  +    \expandafter\closeout\csname#2indfile\endcsname
  +    \expandafter\let\csname\donesynindex#2\endcsname = 1
  +  \fi
  +  % redefine \fooindfile:
  +  \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
  +  \expandafter\let\csname#2indfile\endcsname=\temp
  +  % redefine \fooindex:
  +  \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
   }
   
   % Define \doindex, the driver for all \fooindex macros.
  @@ -1910,167 +3217,406 @@
   \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
   \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
   
  +% Take care of Texinfo commands that can appear in an index entry.
  +% Since there are some commands we want to expand, and others we don't,
  +% we have to laboriously prevent expansion for those that we don't.
  +%
   \def\indexdummies{%
  -% Take care of the plain tex accent commands.
  -\def\"{\realbackslash "}%
  -\def\`{\realbackslash `}%
  -\def\'{\realbackslash '}%
  -\def\^{\realbackslash ^}%
  -\def\~{\realbackslash ~}%
  -\def\={\realbackslash =}%
  -\def\b{\realbackslash b}%
  -\def\c{\realbackslash c}%
  -\def\d{\realbackslash d}%
  -\def\u{\realbackslash u}%
  -\def\v{\realbackslash v}%
  -\def\H{\realbackslash H}%
  -% Take care of the plain tex special European modified letters.
  -\def\oe{\realbackslash oe}%
  -\def\ae{\realbackslash ae}%
  -\def\aa{\realbackslash aa}%
  -\def\OE{\realbackslash OE}%
  -\def\AE{\realbackslash AE}%
  -\def\AA{\realbackslash AA}%
  -\def\o{\realbackslash o}%
  -\def\O{\realbackslash O}%
  -\def\l{\realbackslash l}%
  -\def\L{\realbackslash L}%
  -\def\ss{\realbackslash ss}%
  -% Take care of texinfo commands likely to appear in an index entry.
  -\def\_{{\realbackslash _}}%
  -\def\w{\realbackslash w }%
  -\def\bf{\realbackslash bf }%
  -\def\rm{\realbackslash rm }%
  -\def\sl{\realbackslash sl }%
  -\def\sf{\realbackslash sf}%
  -\def\tt{\realbackslash tt}%
  -\def\gtr{\realbackslash gtr}%
  -\def\less{\realbackslash less}%
  -\def\hat{\realbackslash hat}%
  -\def\char{\realbackslash char}%
  -\def\TeX{\realbackslash TeX}%
  -\def\dots{\realbackslash dots }%
  -\def\copyright{\realbackslash copyright }%
  -\def\tclose##1{\realbackslash tclose {##1}}%
  -\def\code##1{\realbackslash code {##1}}%
  -\def\samp##1{\realbackslash samp {##1}}%
  -\def\t##1{\realbackslash r {##1}}%
  -\def\r##1{\realbackslash r {##1}}%
  -\def\i##1{\realbackslash i {##1}}%
  -\def\b##1{\realbackslash b {##1}}%
  -\def\cite##1{\realbackslash cite {##1}}%
  -\def\key##1{\realbackslash key {##1}}%
  -\def\file##1{\realbackslash file {##1}}%
  -\def\var##1{\realbackslash var {##1}}%
  -\def\kbd##1{\realbackslash kbd {##1}}%
  -\def\dfn##1{\realbackslash dfn {##1}}%
  -\def\emph##1{\realbackslash emph {##1}}%
  -}
  -
  -% \indexnofonts no-ops all font-change commands.
  -% This is used when outputting the strings to sort the index by.
  -\def\indexdummyfont#1{#1}
  -\def\indexdummytex{TeX}
  -\def\indexdummydots{...}
  +  address@hidden@}% change to @@ when we switch to @ as escape char in index 
files.
  +  \def\ {\realbackslash\space }%
  +  % Need these in case \tex is in effect and \{ is a \delimiter again.
  +  % But can't use \lbracecmd and \rbracecmd because texindex assumes
  +  % braces and backslashes are used only as delimiters.
  +  \let\{ = \mylbrace
  +  \let\} = \myrbrace
  +  %
  +  % \definedummyword defines \#1 as \realbackslash #1\space, thus
  +  % effectively preventing its expansion.  This is used only for control
  +  % words, not control letters, because the \space would be incorrect
  +  % for control characters, but is needed to separate the control word
  +  % from whatever follows.
  +  %
  +  % For control letters, we have \definedummyletter, which omits the
  +  % space.
  +  %
  +  % These can be used both for control words that take an argument and
  +  % those that do not.  If it is followed by {arg} in the input, then
  +  % that will dutifully get written to the index (or wherever).
  +  %
  +  \def\definedummyword##1{%
  +    \expandafter\def\csname ##1\endcsname{\realbackslash ##1\space}%
  +  }%
  +  \def\definedummyletter##1{%
  +    \expandafter\def\csname ##1\endcsname{\realbackslash ##1}%
  +  }%
  +  \let\definedummyaccent\definedummyletter
  +  %
  +  % Do the redefinitions.
  +  \commondummies
  +}
   
  -\def\indexnofonts{%
  -% Just ignore accents.
  -\let\"=\indexdummyfont
  -\let\`=\indexdummyfont
  -\let\'=\indexdummyfont
  -\let\^=\indexdummyfont
  -\let\~=\indexdummyfont
  -\let\==\indexdummyfont
  -\let\b=\indexdummyfont
  -\let\c=\indexdummyfont
  -\let\d=\indexdummyfont
  -\let\u=\indexdummyfont
  -\let\v=\indexdummyfont
  -\let\H=\indexdummyfont
  -% Take care of the plain tex special European modified letters.
  -\def\oe{oe}%
  -\def\ae{ae}%
  -\def\aa{aa}%
  -\def\OE{OE}%
  -\def\AE{AE}%
  -\def\AA{AA}%
  -\def\o{o}%
  -\def\O{O}%
  -\def\l{l}%
  -\def\L{L}%
  -\def\ss{ss}%
  -\let\w=\indexdummyfont
  -\let\t=\indexdummyfont
  -\let\r=\indexdummyfont
  -\let\i=\indexdummyfont
  -\let\b=\indexdummyfont
  -\let\emph=\indexdummyfont
  -\let\strong=\indexdummyfont
  -\let\cite=\indexdummyfont
  -\let\sc=\indexdummyfont
  -%Don't no-op \tt, since it isn't a user-level command
  -% and is used in the definitions of the active chars like <, >, |...
  -%\let\tt=\indexdummyfont
  -\let\tclose=\indexdummyfont
  -\let\code=\indexdummyfont
  -\let\file=\indexdummyfont
  -\let\samp=\indexdummyfont
  -\let\kbd=\indexdummyfont
  -\let\key=\indexdummyfont
  -\let\var=\indexdummyfont
  -\let\TeX=\indexdummytex
  -\let\dots=\indexdummydots
  -}
  -
  -% To define \realbackslash, we must make \ not be an escape.
  -% We must first make another character (@) an escape
  -% so we do not become unable to do a definition.
  +% For the aux and toc files, @ is the escape character.  So we want to
  +% redefine everything using @ as the escape character (instead of
  +% \realbackslash, still used for index files).  When everything uses @,
  +% this will be simpler.
  +%
  +\def\atdummies{%
  +  address@hidden@@}%
  +  \def\ {@ }%
  +  \let\{ = \lbraceatcmd
  +  \let\} = \rbraceatcmd
  +  %
  +  % (See comments in \indexdummies.)
  +  \def\definedummyword##1{%
  +    \expandafter\def\csname address@hidden
  +  }%
  +  \def\definedummyletter##1{%
  +    \expandafter\def\csname address@hidden
  +  }%
  +  \let\definedummyaccent\definedummyletter
  +  %
  +  % Do the redefinitions.
  +  \commondummies
  +}
   
  address@hidden \catcode`\\=\other
  address@hidden@realbackslash{\}}
  +% Called from \indexdummies and \atdummies.  \definedummyword and
  +% \definedummyletter must be defined first.
  +%
  +\def\commondummies{%
  +  %
  +  \normalturnoffactive
  +  %
  +  \commondummiesnofonts
  +  %
  +  \definedummyletter{_}%
  +  %
  +  % Non-English letters.
  +  \definedummyword{AA}%
  +  \definedummyword{AE}%
  +  \definedummyword{L}%
  +  \definedummyword{OE}%
  +  \definedummyword{O}%
  +  \definedummyword{aa}%
  +  \definedummyword{ae}%
  +  \definedummyword{l}%
  +  \definedummyword{oe}%
  +  \definedummyword{o}%
  +  \definedummyword{ss}%
  +  \definedummyword{exclamdown}%
  +  \definedummyword{questiondown}%
  +  \definedummyword{ordf}%
  +  \definedummyword{ordm}%
  +  %
  +  % Although these internal commands shouldn't show up, sometimes they do.
  +  \definedummyword{bf}%
  +  \definedummyword{gtr}%
  +  \definedummyword{hat}%
  +  \definedummyword{less}%
  +  \definedummyword{sf}%
  +  \definedummyword{sl}%
  +  \definedummyword{tclose}%
  +  \definedummyword{tt}%
  +  %
  +  \definedummyword{LaTeX}%
  +  \definedummyword{TeX}%
  +  %
  +  % Assorted special characters.
  +  \definedummyword{bullet}%
  +  \definedummyword{comma}%
  +  \definedummyword{copyright}%
  +  \definedummyword{registeredsymbol}%
  +  \definedummyword{dots}%
  +  \definedummyword{enddots}%
  +  \definedummyword{equiv}%
  +  \definedummyword{error}%
  +  \definedummyword{euro}%
  +  \definedummyword{expansion}%
  +  \definedummyword{minus}%
  +  \definedummyword{pounds}%
  +  \definedummyword{point}%
  +  \definedummyword{print}%
  +  \definedummyword{result}%
  +  %
  +  % Handle some cases of @value -- where it does not contain any
  +  % (non-fully-expandable) commands.
  +  \makevalueexpandable
  +  %
  +  % Normal spaces, not active ones.
  +  \unsepspaces
  +  %
  +  % No macro expansion.
  +  \turnoffmacros
  +}
  +
  +% \commondummiesnofonts: common to \commondummies and \indexnofonts.
  +%
  +% Better have this without active chars.
  +{
  +  \catcode`\~=\other
  +  \gdef\commondummiesnofonts{%
  +    % Control letters and accents.
  +    \definedummyletter{!}%
  +    \definedummyaccent{"}%
  +    \definedummyaccent{'}%
  +    \definedummyletter{*}%
  +    \definedummyaccent{,}%
  +    \definedummyletter{.}%
  +    \definedummyletter{/}%
  +    \definedummyletter{:}%
  +    \definedummyaccent{=}%
  +    \definedummyletter{?}%
  +    \definedummyaccent{^}%
  +    \definedummyaccent{`}%
  +    \definedummyaccent{~}%
  +    \definedummyword{u}%
  +    \definedummyword{v}%
  +    \definedummyword{H}%
  +    \definedummyword{dotaccent}%
  +    \definedummyword{ringaccent}%
  +    \definedummyword{tieaccent}%
  +    \definedummyword{ubaraccent}%
  +    \definedummyword{udotaccent}%
  +    \definedummyword{dotless}%
  +    %
  +    % Texinfo font commands.
  +    \definedummyword{b}%
  +    \definedummyword{i}%
  +    \definedummyword{r}%
  +    \definedummyword{sc}%
  +    \definedummyword{t}%
  +    %
  +    % Commands that take arguments.
  +    \definedummyword{acronym}%
  +    \definedummyword{cite}%
  +    \definedummyword{code}%
  +    \definedummyword{command}%
  +    \definedummyword{dfn}%
  +    \definedummyword{emph}%
  +    \definedummyword{env}%
  +    \definedummyword{file}%
  +    \definedummyword{kbd}%
  +    \definedummyword{key}%
  +    \definedummyword{math}%
  +    \definedummyword{option}%
  +    \definedummyword{samp}%
  +    \definedummyword{strong}%
  +    \definedummyword{tie}%
  +    \definedummyword{uref}%
  +    \definedummyword{url}%
  +    \definedummyword{var}%
  +    \definedummyword{verb}%
  +    \definedummyword{w}%
  +  }
  +}
  +
  +% \indexnofonts is used when outputting the strings to sort the index
  +% by, and when constructing control sequence names.  It eliminates all
  +% control sequences and just writes whatever the best ASCII sort string
  +% would be for a given command (usually its argument).
  +%
  +\def\indexnofonts{%
  +  % Accent commands should become @asis.
  +  \def\definedummyaccent##1{%
  +    \expandafter\let\csname ##1\endcsname\asis
  +  }%
  +  % We can just ignore other control letters.
  +  \def\definedummyletter##1{%
  +    \expandafter\def\csname ##1\endcsname{}%
  +  }%
  +  % Hopefully, all control words can become @asis.
  +  \let\definedummyword\definedummyaccent
  +  %
  +  \commondummiesnofonts
  +  %
  +  % Don't no-op \tt, since it isn't a user-level command
  +  % and is used in the definitions of the active chars like <, >, |, etc.
  +  % Likewise with the other plain tex font commands.
  +  %\let\tt=\asis
  +  %
  +  \def\ { }%
  +  address@hidden@}%
  +  % how to handle braces?
  +  \def\_{\normalunderscore}%
  +  %
  +  % Non-English letters.
  +  \def\AA{AA}%
  +  \def\AE{AE}%
  +  \def\L{L}%
  +  \def\OE{OE}%
  +  \def\O{O}%
  +  \def\aa{aa}%
  +  \def\ae{ae}%
  +  \def\l{l}%
  +  \def\oe{oe}%
  +  \def\o{o}%
  +  \def\ss{ss}%
  +  \def\exclamdown{!}%
  +  \def\questiondown{?}%
  +  \def\ordf{a}%
  +  \def\ordm{o}%
  +  %
  +  \def\LaTeX{LaTeX}%
  +  \def\TeX{TeX}%
  +  %
  +  % Assorted special characters.
  +  % (The following {} will end up in the sort string, but that's ok.)
  +  \def\bullet{bullet}%
  +  \def\comma{,}%
  +  \def\copyright{copyright}%
  +  \def\registeredsymbol{R}%
  +  \def\dots{...}%
  +  \def\enddots{...}%
  +  \def\equiv{==}%
  +  \def\error{error}%
  +  \def\euro{euro}%
  +  \def\expansion{==>}%
  +  \def\minus{-}%
  +  \def\pounds{pounds}%
  +  \def\point{.}%
  +  \def\print{-|}%
  +  \def\result{=>}%
  +  %
  +  % Don't write macro names.
  +  \emptyusermacros
  +}
   
   \let\indexbackslash=0  %overridden during \printindex.
  +\let\SETmarginindex=\relax % put index entries in margin (undocumented)?
   
  -\def\doind #1#2{%
  -{\count10=\lastpenalty %
  -{\indexdummies % Must do this here, since \bf, etc expand at this stage
  -\escapechar=`\\%
  -{\let\folio=0% Expand all macros now EXCEPT \folio
  -\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
  -% so it will be output as is; and it will print as backslash in the indx.
  -%
  -% Now process the index-string once, with all font commands turned off,
  -% to get the string to sort the index by.
  -{\indexnofonts
  -\xdef\temp1{#2}%
  -}%
  -% Now produce the complete index entry.  We process the index-string again,
  -% this time with font commands expanded, to get what to print in the index.
  -\edef\temp{%
  -\write \csname#1indfile\endcsname{%
  -\realbackslash entry {\temp1}{\folio}{#2}}}%
  -\temp }%
  -}\penalty\count10}}
  -
  -\def\dosubind #1#2#3{%
  -{\count10=\lastpenalty %
  -{\indexdummies % Must do this here, since \bf, etc expand at this stage
  -\escapechar=`\\%
  -{\let\folio=0%
  -\def\rawbackslashxx{\indexbackslash}%
  -%
  -% Now process the index-string once, with all font commands turned off,
  -% to get the string to sort the index by.
  -{\indexnofonts
  -\xdef\temp1{#2 #3}%
  -}%
  -% Now produce the complete index entry.  We process the index-string again,
  -% this time with font commands expanded, to get what to print in the index.
  -\edef\temp{%
  -\write \csname#1indfile\endcsname{%
  -\realbackslash entry {\temp1}{\folio}{#2}{#3}}}%
  -\temp }%
  -}\penalty\count10}}
  +% Most index entries go through here, but \dosubind is the general case.
  +% #1 is the index name, #2 is the entry text.
  +\def\doind#1#2{\dosubind{#1}{#2}{}}
  +
  +% Workhorse for all \fooindexes.
  +% #1 is name of index, #2 is stuff to put there, #3 is subentry --
  +% empty if called from \doind, as we usually are (the main exception
  +% is with most defuns, which call us directly).
  +%
  +\def\dosubind#1#2#3{%
  +  \iflinks
  +  {%
  +    % Store the main index entry text (including the third arg).
  +    \toks0 = {#2}%
  +    % If third arg is present, precede it with a space.
  +    \def\thirdarg{#3}%
  +    \ifx\thirdarg\empty \else
  +      \toks0 = \expandafter{\the\toks0 \space #3}%
  +    \fi
  +    %
  +    \edef\writeto{\csname#1indfile\endcsname}%
  +    %
  +    \ifvmode
  +      \dosubindsanitize
  +    \else
  +      \dosubindwrite
  +    \fi
  +  }%
  +  \fi
  +}
  +
  +% Write the entry in \toks0 to the index file:
  +%
  +\def\dosubindwrite{%
  +  % Put the index entry in the margin if desired.
  +  \ifx\SETmarginindex\relax\else
  +    \insert\margin{\hbox{\vrule height8pt depth3pt width0pt \the\toks0}}%
  +  \fi
  +  %
  +  % Remember, we are within a group.
  +  \indexdummies % Must do this here, since \bf, etc expand at this stage
  +  \escapechar=`\\
  +  \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now
  +      % so it will be output as is; and it will print as backslash.
  +  %
  +  % Process the index entry with all font commands turned off, to
  +  % get the string to sort by.
  +  {\indexnofonts
  +   \edef\temp{\the\toks0}% need full expansion
  +   \xdef\indexsorttmp{\temp}%
  +  }%
  +  %
  +  % Set up the complete index entry, with both the sort key and
  +  % the original text, including any font commands.  We write
  +  % three arguments to \entry to the .?? file (four in the
  +  % subentry case), texindex reduces to two when writing the .??s
  +  % sorted result.
  +  \edef\temp{%
  +    \write\writeto{%
  +      \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}%
  +  }%
  +  \temp
  +}
  +
  +% Take care of unwanted page breaks:
  +%
  +% If a skip is the last thing on the list now, preserve it
  +% by backing up by \lastskip, doing the \write, then inserting
  +% the skip again.  Otherwise, the whatsit generated by the
  +% \write will make \lastskip zero.  The result is that sequences
  +% like this:
  +% @end defun
  +% @tindex whatever
  +% @defun ...
  +% will have extra space inserted, because the \medbreak in the
  +% start of the @defun won't see the skip inserted by the @end of
  +% the previous defun.
  +%
  +% But don't do any of this if we're not in vertical mode.  We
  +% don't want to do a \vskip and prematurely end a paragraph.
  +%
  +% Avoid page breaks due to these extra skips, too.
  +%
  +% But wait, there is a catch there:
  +% We'll have to check whether \lastskip is zero skip.  \ifdim is not
  +% sufficient for this purpose, as it ignores stretch and shrink parts
  +% of the skip.  The only way seems to be to check the textual
  +% representation of the skip.
  +%
  +% The following is almost like \def\zeroskipmacro{0.0pt} except that
  +% the ``p'' and ``t'' characters have catcode \other, not 11 (letter).
  +%
  +\edef\zeroskipmacro{\expandafter\the\csname address@hidden
  +%
  +% ..., ready, GO:
  +%
  +\def\dosubindsanitize{%
  +  % \lastskip and \lastpenalty cannot both be nonzero simultaneously.
  +  \skip0 = \lastskip
  +  \edef\lastskipmacro{\the\lastskip}%
  +  \count255 = \lastpenalty
  +  %
  +  % If \lastskip is nonzero, that means the last item was a
  +  % skip.  And since a skip is discardable, that means this
  +  % -\skip0 glue we're inserting is preceded by a
  +  % non-discardable item, therefore it is not a potential
  +  % breakpoint, therefore no \nobreak needed.
  +  \ifx\lastskipmacro\zeroskipmacro
  +  \else
  +    \vskip-\skip0
  +  \fi
  +  %
  +  \dosubindwrite
  +  %
  +  \ifx\lastskipmacro\zeroskipmacro
  +    % If \lastskip was zero, perhaps the last item was a penalty, and
  +    % perhaps it was >=10000, e.g., a \nobreak.  In that case, we want
  +    % to re-insert the same penalty (values >10000 are used for various
  +    % signals); since we just inserted a non-discardable item, any
  +    % following glue (such as a \parskip) would be a breakpoint.  For 
example:
  +    % 
  +    %   @deffn deffn-whatever
  +    %   @vindex index-whatever
  +    %   Description.
  +    % would allow a break between the index-whatever whatsit
  +    % and the "Description." paragraph.
  +    \ifnum\count255>9999 \penalty\count255 \fi
  +  \else
  +    % On the other hand, if we had a nonzero \lastskip,
  +    % this make-up glue would be preceded by a non-discardable item
  +    % (the whatsit from the \write), so we must insert a \nobreak.
  +    \nobreak\vskip\skip0
  +  \fi
  +}
   
   % The index entry written in the file actually looks like
   %  \entry {sortstring}{page}{topic}
  @@ -2104,134 +3650,170 @@
   
   % Define the macros used in formatting output of the sorted index material.
   
  -% This is what you call to cause a particular index to get printed.
  -% Write
  -% @unnumbered Function Index
  -% @printindex fn
  -
  -\def\printindex{\parsearg\doprintindex}
  -
  -\def\doprintindex#1{%
  -  \tex
  -  \dobreak \chapheadingskip {10000}
  -  \catcode`\%=\other\catcode`\&=\other\catcode`\#=\other
  -  \catcode`\$=\other
  -  \catcode`\~=\other
  -  \indexbreaks
  +% @printindex causes a particular index (the ??s file) to get printed.
  +% It does not print any chapter heading (usually an @unnumbered).
  +%
  +\parseargdef\printindex{\begingroup
  +  \dobreak \chapheadingskip{10000}%
     %
  -  % The following don't help, since the chars were translated
  -  % when the raw index was written, and their fonts were discarded
  -  % due to \indexnofonts.
  -  %\catcode`\"=\active
  -  %\catcode`\^=\active
  -  %\catcode`\_=\active
  -  %\catcode`\|=\active
  -  %\catcode`\<=\active
  -  %\catcode`\>=\active
  -  % %
  -  \def\indexbackslash{\rawbackslashxx}
  -  \indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt
  -  \begindoublecolumns
  +  \smallfonts \rm
  +  \tolerance = 9500
  +  \everypar = {}% don't want the \kern\-parindent from indentation 
suppression.
     %
     % See if the index file exists and is nonempty.
  +  % Change catcode of @ here so that if the index file contains
  +  % \initial address@hidden
  +  % as its first line, TeX doesn't complain about mismatched braces
  +  % (because it thinks @} is a control sequence).
  +  \catcode`\@ = 11
     \openin 1 \jobname.#1s
     \ifeof 1
       % \enddoublecolumns gets confused if there is no text in the index,
       % and it loses the chapter title and the aux file entries for the
       % index.  The easiest way to prevent this problem is to make sure
       % there is some text.
  -    (Index is nonexistent)
  -    \else
  +    \putwordIndexNonexistent
  +  \else
       %
       % If the index file exists but is empty, then \openin leaves \ifeof
       % false.  We have to make TeX try to read something from the file, so
       % it can discover if there is anything in it.
       \read 1 to \temp
       \ifeof 1
  -      (Index is empty)
  +      \putwordIndexIsEmpty
       \else
  +      % Index files are almost Texinfo source, but we use \ as the escape
  +      % character.  It would be better to use @, but that's too big a change
  +      % to make right now.
  +      \def\indexbackslash{\backslashcurfont}%
  +      \catcode`\\ = 0
  +      \escapechar = `\\
  +      \begindoublecolumns
         \input \jobname.#1s
  +      \enddoublecolumns
       \fi
     \fi
     \closein 1
  -  \enddoublecolumns
  -  \Etex
  -}
  +\endgroup}
   
   % These macros are used by the sorted index file itself.
   % Change them to control the appearance of the index.
   
  -% Same as \bigskipamount except no shrink.
  -% \balancecolumns gets confused if there is any shrink.
  -\newskip\initialskipamount \initialskipamount 12pt plus4pt
  -
  -\def\initial #1{%
  -{\let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
  -\ifdim\lastskip<\initialskipamount
  -\removelastskip \penalty-200 \vskip \initialskipamount\fi
  -\line{\secbf#1\hfill}\kern 2pt\penalty10000}}
  -
  -% This typesets a paragraph consisting of #1, dot leaders, and then #2
  -% flush to the right margin.  It is used for index and table of contents
  -% entries.  The paragraph is indented by \leftskip.
  -%
  -\def\entry #1#2{\begingroup
  -  %
  -  % Start a new paragraph if necessary, so our assignments below can't
  -  % affect previous text.
  -  \par
  -  %
  -  % Do not fill out the last line with white space.
  -  \parfillskip = 0in
  -  %
  -  % No extra space above this paragraph.
  -  \parskip = 0in
  -  %
  -  % Do not prefer a separate line ending with a hyphen to fewer lines.
  -  \finalhyphendemerits = 0
  +\def\initial#1{{%
  +  % Some minor font changes for the special characters.
  +  \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
     %
  -  % \hangindent is only relevant when the entry text and page number
  -  % don't both fit on one line.  In that case, bob suggests starting the
  -  % dots pretty far over on the line.  Unfortunately, a large
  -  % indentation looks wrong when the entry text itself is broken across
  -  % lines.  So we use a small indentation and put up with long leaders.
  -  %
  -  % \hangafter is reset to 1 (which is the value we want) at the start
  -  % of each paragraph, so we need not do anything with that.
  -  \hangindent=2em
  -  %
  -  % When the entry text needs to be broken, just fill out the first line
  -  % with blank space.
  -  \rightskip = 0pt plus1fil
  +  % Remove any glue we may have, we'll be inserting our own.
  +  \removelastskip
     %
  -  % Start a ``paragraph'' for the index entry so the line breaking
  -  % parameters we've set above will have an effect.
  -  \noindent
  -  %
  -  % Insert the text of the index entry.  TeX will do line-breaking on it.
  -  #1%
  -  % The following is kluged to not output a line of dots in the index if
  -  % there are no page numbers.  The next person who breaks this will be
  -  % cursed by a Unix daemon.
  -  \def\tempa{{\rm }}%
  -  \def\tempb{#2}%
  -  \edef\tempc{\tempa}%
  -  \edef\tempd{\tempb}%
  -  \ifx\tempc\tempd\ \else%
  -    %
  -    % If we must, put the page number on a line of its own, and fill out
  -    % this line with blank space.  (The \hfil is overwhelmed with the
  -    % fill leaders glue in \indexdotfill if the page number does fit.)
  -    \hfil\penalty50
  -    \null\nobreak\indexdotfill % Have leaders before the page number.
  -    %
  -    % The `\ ' here is removed by the implicit \unskip that TeX does as
  -    % part of (the primitive) \par.  Without it, a spurious underfull
  -    % \hbox ensues.
  -    \ #2% The page number ends the paragraph.
  -  \fi%
  -  \par
  -\endgroup}
  +  % We like breaks before the index initials, so insert a bonus.
  +  \nobreak
  +  \vskip 0pt plus 3\baselineskip
  +  \penalty 0
  +  \vskip 0pt plus -3\baselineskip
  +  %
  +  % Typeset the initial.  Making this add up to a whole number of
  +  % baselineskips increases the chance of the dots lining up from column
  +  % to column.  It still won't often be perfect, because of the stretch
  +  % we need before each entry, but it's better.
  +  %
  +  % No shrink because it confuses \balancecolumns.
  +  \vskip 1.67\baselineskip plus .5\baselineskip
  +  \leftline{\secbf #1}%
  +  % Do our best not to break after the initial.
  +  \nobreak
  +  \vskip .33\baselineskip plus .1\baselineskip
  +}}
  +
  +% \entry typesets a paragraph consisting of the text (#1), dot leaders, and
  +% then page number (#2) flushed to the right margin.  It is used for index
  +% and table of contents entries.  The paragraph is indented by \leftskip.
  +%
  +% A straightforward implementation would start like this:
  +%    \def\entry#1#2{...
  +% But this frozes the catcodes in the argument, and can cause problems to
  +% @code, which sets - active.  This problem was fixed by a kludge---
  +% ``-'' was active throughout whole index, but this isn't really right.
  +%
  +% The right solution is to prevent \entry from swallowing the whole text.
  +%                                 --kasal, 21nov03
  +\def\entry{%
  +  \begingroup
  +    %
  +    % Start a new paragraph if necessary, so our assignments below can't
  +    % affect previous text.
  +    \par
  +    %
  +    % Do not fill out the last line with white space.
  +    \parfillskip = 0in
  +    %
  +    % No extra space above this paragraph.
  +    \parskip = 0in
  +    %
  +    % Do not prefer a separate line ending with a hyphen to fewer lines.
  +    \finalhyphendemerits = 0
  +    %
  +    % \hangindent is only relevant when the entry text and page number
  +    % don't both fit on one line.  In that case, bob suggests starting the
  +    % dots pretty far over on the line.  Unfortunately, a large
  +    % indentation looks wrong when the entry text itself is broken across
  +    % lines.  So we use a small indentation and put up with long leaders.
  +    %
  +    % \hangafter is reset to 1 (which is the value we want) at the start
  +    % of each paragraph, so we need not do anything with that.
  +    \hangindent = 2em
  +    %
  +    % When the entry text needs to be broken, just fill out the first line
  +    % with blank space.
  +    \rightskip = 0pt plus1fil
  +    %
  +    % A bit of stretch before each entry for the benefit of balancing
  +    % columns.
  +    \vskip 0pt plus1pt
  +    %
  +    % Swallow the left brace of the text (first parameter):
  +    \afterassignment\doentry
  +    \let\temp =
  +}
  +\def\doentry{%
  +    \bgroup % Instead of the swallowed brace.
  +      \noindent
  +      \aftergroup\finishentry
  +      % And now comes the text of the entry.
  +}
  +\def\finishentry#1{%
  +    % #1 is the page number.
  +    %
  +    % The following is kludged to not output a line of dots in the index if
  +    % there are no page numbers.  The next person who breaks this will be
  +    % cursed by a Unix daemon.
  +    \def\tempa{{\rm }}%
  +    \def\tempb{#1}%
  +    \edef\tempc{\tempa}%
  +    \edef\tempd{\tempb}%
  +    \ifx\tempc\tempd
  +      \ %
  +    \else
  +      %
  +      % If we must, put the page number on a line of its own, and fill out
  +      % this line with blank space.  (The \hfil is overwhelmed with the
  +      % fill leaders glue in \indexdotfill if the page number does fit.)
  +      \hfil\penalty50
  +      \null\nobreak\indexdotfill % Have leaders before the page number.
  +      %
  +      % The `\ ' here is removed by the implicit \unskip that TeX does as
  +      % part of (the primitive) \par.  Without it, a spurious underfull
  +      % \hbox ensues.
  +      \ifpdf
  +     \pdfgettoks#1.%
  +     \ \the\toksA
  +      \else
  +     \ #1%
  +      \fi
  +    \fi
  +    \par
  +  \endgroup
  +}
   
   % Like \dotfill except takes at least 1 em.
   \def\indexdotfill{\cleaders
  @@ -2240,41 +3822,65 @@
   \def\primary #1{\line{#1\hfil}}
   
   \newskip\secondaryindent \secondaryindent=0.5cm
  +\def\secondary#1#2{{%
  +  \parfillskip=0in
  +  \parskip=0in
  +  \hangindent=1in
  +  \hangafter=1
  +  \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill
  +  \ifpdf
  +    \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
  +  \else
  +    #2
  +  \fi
  +  \par
  +}}
   
  -\def\secondary #1#2{
  -{\parfillskip=0in \parskip=0in
  -\hangindent =1in \hangafter=1
  -\noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par
  -}}
  -
  -%% Define two-column mode, which is used in indexes.
  -%% Adapted from the TeXbook, page 416.
  -\catcode address@hidden
  -
  -\newbox\partialpage
  +% Define two-column mode, which we use to typeset indexes.
  +% Adapted from the TeXbook, page 416, which is to say,
  +% the manmac.tex format used to print the TeXbook itself.
  address@hidden
   
  +\newbox\partialpage
   \newdimen\doublecolumnhsize
   
  -\def\begindoublecolumns{\begingroup
  +\def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
     % Grab any single-column material above us.
  -  \output = {\global\setbox\partialpage
  -    =\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}%
  -  \eject
  +  \output = {%
  +    %
  +    % Here is a possibility not foreseen in manmac: if we accumulate a
  +    % whole lot of material, we might end up calling this \output
  +    % routine twice in a row (see the doublecol-lose test, which is
  +    % essentially a couple of indexes with @setchapternewpage off).  In
  +    % that case we just ship out what is in \partialpage with the normal
  +    % output routine.  Generally, \partialpage will be empty when this
  +    % runs and this will be a no-op.  See the indexspread.tex test case.
  +    \ifvoid\partialpage \else
  +      \onepageout{\pagecontents\partialpage}%
  +    \fi
  +    %
  +    \global\setbox\partialpage = \vbox{%
  +      % Unvbox the main output page.
  +      \unvbox\PAGE
  +      \kern-\topskip \kern\baselineskip
  +    }%
  +  }%
  +  \eject % run that output routine to set \partialpage
     %
  -  % Now switch to the double-column output routine.
  -  \output={\doublecolumnout}%
  +  % Use the double-column output routine for subsequent pages.
  +  \output = {\doublecolumnout}%
     %
     % Change the page size parameters.  We could do this once outside this
     % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
     % format, but then we repeat the same computation.  Repeating a couple
     % of assignments once per index is clearly meaningless for the
  -  % execution time, so we may as well do it once.
  +  % execution time, so we may as well do it in one place.
     %
     % First we halve the line length, less a little for the gutter between
     % the columns.  We compute the gutter based on the line length, so it
     % changes automatically with the paper format.  The magic constant
  -  % below is chosen so that the gutter has the same value (well, +- <
  -  % 1pt) as it did when we hard-coded it.
  +  % below is chosen so that the gutter has the same value (well, +-<1pt)
  +  % as it did when we hard-coded it.
     %
     % We put the result in a separate register, \doublecolumhsize, so we
     % can restore it in \pagesofar, after \hsize itself has (potentially)
  @@ -2288,111 +3894,156 @@
     % Double the \vsize as well.  (We don't need a separate register here,
     % since nobody clobbers \vsize.)
     \vsize = 2\vsize
  -  \doublecolumnpagegoal
   }
   
  -\def\enddoublecolumns{\eject \endgroup \pagegoal=\vsize \unvbox\partialpage}
  -
  -\def\doublecolumnsplit{\splittopskip=\topskip \splitmaxdepth=\maxdepth
  -  address@hidden \global\advance\dimen@ by-\ht\partialpage
  -  \global\setbox1=\vsplit255 to\dimen@ \global\setbox0=\vbox{\unvbox1}
  -  \global\setbox3=\vsplit255 to\dimen@ \global\setbox2=\vbox{\unvbox3}
  -  \ifdim\ht0>\dimen@ \setbox255=\vbox{\unvbox0\unvbox2} 
\global\setbox255=\copy5 \fi
  -  \ifdim\ht2>\dimen@ \setbox255=\vbox{\unvbox0\unvbox2} 
\global\setbox255=\copy5 \fi
  -}
  -\def\doublecolumnpagegoal{%
  -  address@hidden \advance\dimen@ by-2\ht\partialpage \global\pagegoal=\dimen@
  -}
  -\def\pagesofar{\unvbox\partialpage %
  -  \hsize=\doublecolumnhsize % have to restore this since output routine
  -  \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}}
  +% The double-column output routine for all double-column pages except
  +% the last.
  +%
   \def\doublecolumnout{%
  -  \setbox5=\copy255
  -  {\vbadness=10000 \doublecolumnsplit}
  -  \ifvbox255
  -    \setbox0=\vtop address@hidden
  -    \setbox2=\vtop address@hidden
  -    \onepageout\pagesofar \unvbox255 \penalty\outputpenalty
  -  \else
  -    \setbox0=\vbox{\unvbox5}
  -    \ifvbox0
  -      address@hidden \advance\dimen@ by\topskip \advance\dimen@ 
by-\baselineskip
  -      \divide\dimen@ by2 \splittopskip=\topskip \splitmaxdepth=\maxdepth
  -      {\vbadness=10000
  -     \loop \global\setbox5=\copy0
  -          \setbox1=\vsplit5 to\dimen@
  -          \setbox3=\vsplit5 to\dimen@
  -          \ifvbox5 \global\advance\dimen@ by1pt \repeat
  -        \setbox0=\vbox address@hidden
  -        \setbox2=\vbox address@hidden
  -        \global\setbox\partialpage=\vbox{\pagesofar}
  -        \doublecolumnpagegoal
  -      }
  -    \fi
  -  \fi
  +  \splittopskip=\topskip \splitmaxdepth=\maxdepth
  +  % Get the available space for the double columns -- the normal
  +  % (undoubled) page height minus any material left over from the
  +  % previous page.
  +  \dimen@ = \vsize
  +  \divide\dimen@ by 2
  +  \advance\dimen@ by -\ht\partialpage
  +  %
  +  % box0 will be the left-hand column, box2 the right.
  +  \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
  +  \onepageout\pagesofar
  +  \unvbox255
  +  \penalty\outputpenalty
  +}
  +%
  +% Re-output the contents of the output page -- any previous material,
  +% followed by the two boxes we just split, in box0 and box2.
  +\def\pagesofar{%
  +  \unvbox\partialpage
  +  %
  +  \hsize = \doublecolumnhsize
  +  \wd0=\hsize \wd2=\hsize
  +  \hbox to\pagewidth{\box0\hfil\box2}%
  +}
  +%
  +% All done with double columns.
  +\def\enddoublecolumns{%
  +  \output = {%
  +    % Split the last of the double-column material.  Leave it on the
  +    % current page, no automatic page break.
  +    \balancecolumns
  +    %
  +    % If we end up splitting too much material for the current page,
  +    % though, there will be another page break right after this \output
  +    % invocation ends.  Having called \balancecolumns once, we do not
  +    % want to call it again.  Therefore, reset \output to its normal
  +    % definition right away.  (We hope \balancecolumns will never be
  +    % called on to balance too much material, but if it is, this makes
  +    % the output somewhat more palatable.)
  +    \global\output = {\onepageout{\pagecontents\PAGE}}%
  +  }%
  +  \eject
  +  \endgroup % started in \begindoublecolumns
  +  %
  +  % \pagegoal was set to the doubled \vsize above, since we restarted
  +  % the current page.  We're now back to normal single-column
  +  % typesetting, so reset \pagegoal to the normal \vsize (after the
  +  % \endgroup where \vsize got restored).
  +  \pagegoal = \vsize
  +}
  +%
  +% Called at the end of the double column material.
  +\def\balancecolumns{%
  +  \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
  +  \dimen@ = \ht0
  +  \advance\dimen@ by \topskip
  +  \advance\dimen@ by-\baselineskip
  +  \divide\dimen@ by 2 % target to split to
  +  %debug\message{final 2-column material height=\the\ht0, address@hidden
  +  \splittopskip = \topskip
  +  % Loop until we get a decent breakpoint.
  +  {%
  +    \vbadness = 10000
  +    \loop
  +      \global\setbox3 = \copy0
  +      \global\setbox1 = \vsplit3 to \dimen@
  +    \ifdim\ht3>\dimen@
  +      \global\advance\dimen@ by 1pt
  +    \repeat
  +  }%
  +  %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
  +  \setbox0=\vbox address@hidden
  +  \setbox2=\vbox address@hidden
  +  %
  +  \pagesofar
   }
  +\catcode`\@ = \other
  +
   
  -\catcode address@hidden
   \message{sectioning,}
  -% Define chapters, sections, etc.
  +% Chapters, sections, etc.
   
  -\newcount \chapno
  -\newcount \secno        \secno=0
  -\newcount \subsecno     \subsecno=0
  -\newcount \subsubsecno  \subsubsecno=0
  +% \unnumberedno is an oxymoron, of course.  But we count the unnumbered
  +% sections so that we can refer to them unambiguously in the pdf
  +% outlines by their "section number".  We avoid collisions with chapter
  +% numbers by starting them at 10000.  (If a document ever has 10000
  +% chapters, we're in trouble anyway, I'm sure.)
  +\newcount\unnumberedno \unnumberedno = 10000
  +\newcount\chapno
  +\newcount\secno        \secno=0
  +\newcount\subsecno     \subsecno=0
  +\newcount\subsubsecno  \subsubsecno=0
   
   % This counter is funny since it counts through charcodes of letters A, B, 
...
  -\newcount \appendixno  \appendixno = `\@
  -\def\appendixletter{\char\the\appendixno}
  -
  -\newwrite \contentsfile
  -% This is called from \setfilename.
  -\def\opencontents{\openout \contentsfile = \jobname.toc}
  -
  -% Each @chapter defines this as the name of the chapter.
  -% page headings and footings can use it.  @section does likewise
  -
  -\def\thischapter{} \def\thissection{}
  -\def\seccheck#1{\if \pageno<0 %
  address@hidden not allowed after generating table of contents}\fi
  +\newcount\appendixno  \appendixno = `\@
   %
  -}
  +% \def\appendixletter{\char\the\appendixno}
  +% We do the following ugly conditional instead of the above simple
  +% construct for the sake of pdftex, which needs the actual
  +% letter in the expansion, not just typeset.
  +%
  +\def\appendixletter{%
  +  \ifnum\appendixno=`A A%
  +  \else\ifnum\appendixno=`B B%
  +  \else\ifnum\appendixno=`C C%
  +  \else\ifnum\appendixno=`D D%
  +  \else\ifnum\appendixno=`E E%
  +  \else\ifnum\appendixno=`F F%
  +  \else\ifnum\appendixno=`G G%
  +  \else\ifnum\appendixno=`H H%
  +  \else\ifnum\appendixno=`I I%
  +  \else\ifnum\appendixno=`J J%
  +  \else\ifnum\appendixno=`K K%
  +  \else\ifnum\appendixno=`L L%
  +  \else\ifnum\appendixno=`M M%
  +  \else\ifnum\appendixno=`N N%
  +  \else\ifnum\appendixno=`O O%
  +  \else\ifnum\appendixno=`P P%
  +  \else\ifnum\appendixno=`Q Q%
  +  \else\ifnum\appendixno=`R R%
  +  \else\ifnum\appendixno=`S S%
  +  \else\ifnum\appendixno=`T T%
  +  \else\ifnum\appendixno=`U U%
  +  \else\ifnum\appendixno=`V V%
  +  \else\ifnum\appendixno=`W W%
  +  \else\ifnum\appendixno=`X X%
  +  \else\ifnum\appendixno=`Y Y%
  +  \else\ifnum\appendixno=`Z Z%
  +  % The \the is necessary, despite appearances, because \appendixletter is
  +  % expanded while writing the .toc file.  \char\appendixno is not
  +  % expandable, thus it is written literally, thus all appendixes come out
  +  % with the same letter (or @) in the toc without it.
  +  \else\char\the\appendixno
  +  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
  +  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
   
  -\def\chapternofonts{%
  -\let\rawbackslash=\relax%
  -\let\frenchspacing=\relax%
  -\def\result{\realbackslash result}
  -\def\equiv{\realbackslash equiv}
  -\def\expansion{\realbackslash expansion}
  -\def\print{\realbackslash print}
  -\def\TeX{\realbackslash TeX}
  -\def\dots{\realbackslash dots}
  -\def\copyright{\realbackslash copyright}
  -\def\tt{\realbackslash tt}
  -\def\bf{\realbackslash bf }
  -\def\w{\realbackslash w}
  -\def\less{\realbackslash less}
  -\def\gtr{\realbackslash gtr}
  -\def\hat{\realbackslash hat}
  -\def\char{\realbackslash char}
  -\def\tclose##1{\realbackslash tclose {##1}}
  -\def\code##1{\realbackslash code {##1}}
  -\def\samp##1{\realbackslash samp {##1}}
  -\def\r##1{\realbackslash r {##1}}
  -\def\b##1{\realbackslash b {##1}}
  -\def\key##1{\realbackslash key {##1}}
  -\def\file##1{\realbackslash file {##1}}
  -\def\kbd##1{\realbackslash kbd {##1}}
  -% These are redefined because @smartitalic wouldn't work inside xdef.
  -\def\i##1{\realbackslash i {##1}}
  -\def\cite##1{\realbackslash cite {##1}}
  -\def\var##1{\realbackslash var {##1}}
  -\def\emph##1{\realbackslash emph {##1}}
  -\def\dfn##1{\realbackslash dfn {##1}}
  -}
  +% Each @chapter defines this as the name of the chapter.
  +% page headings and footings can use it.  @section does likewise.
  +% However, they are not reliable, because we don't use marks.
  +\def\thischapter{}
  +\def\thissection{}
   
   \newcount\absseclevel % used to calculate proper heading level
  -\newcount\secbase\secbase=0 % @raise/lowersections modify this count
  +\newcount\secbase\secbase=0 % @raisesections/@lowersections modify this count
   
   % @raisesections: treat @section as chapter, @subsection as section, etc.
   \def\raisesections{\global\advance\secbase by -1}
  @@ -2402,319 +4053,279 @@
   \def\lowersections{\global\advance\secbase by 1}
   \let\down=\lowersections % original BFox name
   
  -% Choose a numbered-heading macro
  -% #1 is heading level if unmodified by @raisesections or @lowersections
  -% #2 is text for heading
  -\def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
  -\ifcase\absseclevel
  -  \chapterzzz{#2}
  -\or
  -  \seczzz{#2}
  -\or
  -  \numberedsubseczzz{#2}
  -\or
  -  \numberedsubsubseczzz{#2}
  -\else
  -  \ifnum \absseclevel<0
  -    \chapterzzz{#2}
  +% we only have subsub.
  +\chardef\maxseclevel = 3
  +%
  +% A numbered section within an unnumbered changes to unnumbered too.
  +% To achive this, remember the "biggest" unnum. sec. we are currently in:
  +\chardef\unmlevel = \maxseclevel
  +%
  +% Trace whether the current chapter is an appendix or not:
  +% \chapheadtype is "N" or "A", unnumbered chapters are ignored.
  +\def\chapheadtype{N}
  +
  +% Choose a heading macro
  +% #1 is heading type
  +% #2 is heading level
  +% #3 is text for heading
  +\def\genhead#1#2#3{%
  +  % Compute the abs. sec. level:
  +  \absseclevel=#2
  +  \advance\absseclevel by \secbase
  +  % Make sure \absseclevel doesn't fall outside the range:
  +  \ifnum \absseclevel < 0
  +    \absseclevel = 0
     \else
  -    \numberedsubsubseczzz{#2}
  +    \ifnum \absseclevel > 3
  +      \absseclevel = 3
  +    \fi
     \fi
  -\fi
  -}
  -
  -% like \numhead, but chooses appendix heading levels
  -\def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
  -\ifcase\absseclevel
  -  \appendixzzz{#2}
  -\or
  -  \appendixsectionzzz{#2}
  -\or
  -  \appendixsubseczzz{#2}
  -\or
  -  \appendixsubsubseczzz{#2}
  -\else
  -  \ifnum \absseclevel<0
  -    \appendixzzz{#2}
  +  % The heading type:
  +  \def\headtype{#1}%
  +  \if \headtype U%
  +    \ifnum \absseclevel < \unmlevel
  +      \chardef\unmlevel = \absseclevel
  +    \fi
     \else
  -    \appendixsubsubseczzz{#2}
  +    % Check for appendix sections:
  +    \ifnum \absseclevel = 0
  +      \edef\chapheadtype{\headtype}%
  +    \else
  +      \if \headtype A\if \chapheadtype N%
  +     address@hidden within a non-appendix chapter}%
  +      \fi\fi
  +    \fi
  +    % Check for numbered within unnumbered:
  +    \ifnum \absseclevel > \unmlevel
  +      \def\headtype{U}%
  +    \else
  +      \chardef\unmlevel = 3
  +    \fi
     \fi
  -\fi
  -}
  -
  -% like \numhead, but chooses numberless heading levels
  -\def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
  -\ifcase\absseclevel
  -  \unnumberedzzz{#2}
  -\or
  -  \unnumberedseczzz{#2}
  -\or
  -  \unnumberedsubseczzz{#2}
  -\or
  -  \unnumberedsubsubseczzz{#2}
  -\else
  -  \ifnum \absseclevel<0
  -    \unnumberedzzz{#2}
  +  % Now print the heading:
  +  \if \headtype U%
  +    \ifcase\absseclevel
  +     \unnumberedzzz{#3}%
  +    \or \unnumberedseczzz{#3}%
  +    \or \unnumberedsubseczzz{#3}%
  +    \or \unnumberedsubsubseczzz{#3}%
  +    \fi
     \else
  -    \unnumberedsubsubseczzz{#2}
  +    \if \headtype A%
  +      \ifcase\absseclevel
  +       \appendixzzz{#3}%
  +      \or \appendixsectionzzz{#3}%
  +      \or \appendixsubseczzz{#3}%
  +      \or \appendixsubsubseczzz{#3}%
  +      \fi
  +    \else
  +      \ifcase\absseclevel
  +       \chapterzzz{#3}%
  +      \or \seczzz{#3}%
  +      \or \numberedsubseczzz{#3}%
  +      \or \numberedsubsubseczzz{#3}%
  +      \fi
  +    \fi
     \fi
  -\fi
  +  \suppressfirstparagraphindent
   }
   
  +% an interface:
  +\def\numhead{\genhead N}
  +\def\apphead{\genhead A}
  +\def\unnmhead{\genhead U}
   
  -\def\thischaptername{No Chapter Title}
  -\outer\def\chapter{\parsearg\chapteryyy}
  -\def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz
  -\def\chapterzzz #1{\seccheck{chapter}%
  -\secno=0 \subsecno=0 \subsubsecno=0
  -\global\advance \chapno by 1 \message{Chapter \the\chapno}%
  -\chapmacro {#1}{\the\chapno}%
  -\gdef\thissection{#1}%
  -\gdef\thischaptername{#1}%
  -% We don't substitute the actual chapter name into \thischapter
  -% because we don't want its macros evaluated now.
  -\xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp  %
  -\donoderef %
  -\global\let\section = \numberedsec
  -\global\let\subsection = \numberedsubsec
  -\global\let\subsubsection = \numberedsubsubsec
  -}}
  -
  -\outer\def\appendix{\parsearg\appendixyyy}
  -\def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz
  -\def\appendixzzz #1{\seccheck{appendix}%
  -\secno=0 \subsecno=0 \subsubsecno=0
  -\global\advance \appendixno by 1 \message{Appendix \appendixletter}%
  -\chapmacro {#1}{\putwordAppendix{} \appendixletter}%
  -\gdef\thissection{#1}%
  -\gdef\thischaptername{#1}%
  -\xdef\thischapter{\putwordAppendix{} \appendixletter: 
\noexpand\thischaptername}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash chapentry
  -  {#1}{\putwordAppendix{} \appendixletter}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp  %
  -\appendixnoderef %
  -\global\let\section = \appendixsec
  -\global\let\subsection = \appendixsubsec
  -\global\let\subsubsection = \appendixsubsubsec
  -}}
  -
  -\outer\def\top{\parsearg\unnumberedyyy}
  -\outer\def\unnumbered{\parsearg\unnumberedyyy}
  -\def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls 
unnumberedzzz
  -\def\unnumberedzzz #1{\seccheck{unnumbered}%
  -\secno=0 \subsecno=0 \subsubsecno=0
  -%
  -% This used to be simply \message{#1}, but TeX fully expands the
  -% argument to \message.  Therefore, if #1 contained @-commands, TeX
  -% expanded them.  For example, in address@hidden The @cite{Book}', TeX
  -% expanded @cite (which turns out to cause errors because \cite is meant
  -% to be executed, not expanded).
  -%
  -% Anyway, we don't want the fully-expanded definition of @cite to appear
  -% as a result of the \message, we just want address@hidden' itself.  We use
  -% \the<toks register> to achieve this: TeX expands \the<toks> only once,
  -% simply yielding the contents of the <toks register>.
  -\toks0 = {#1}\message{(\the\toks0)}%
  -%
  -\unnumbchapmacro {#1}%
  -\gdef\thischapter{#1}\gdef\thissection{#1}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash unnumbchapentry {#1}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp  %
  -\unnumbnoderef %
  -\global\let\section = \unnumberedsec
  -\global\let\subsection = \unnumberedsubsec
  -\global\let\subsubsection = \unnumberedsubsubsec
  -}}
  -
  -\outer\def\numberedsec{\parsearg\secyyy}
  -\def\secyyy #1{\numhead1{#1}} % normally calls seczzz
  -\def\seczzz #1{\seccheck{section}%
  -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
  -\gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash secentry %
  -{#1}{\the\chapno}{\the\secno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\donoderef %
  -\penalty 10000 %
  -}}
  -
  -\outer\def\appenixsection{\parsearg\appendixsecyyy}
  -\outer\def\appendixsec{\parsearg\appendixsecyyy}
  -\def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz
  -\def\appendixsectionzzz #1{\seccheck{appendixsection}%
  -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
  -\gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash secentry %
  -{#1}{\appendixletter}{\the\secno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\appendixnoderef %
  -\penalty 10000 %
  -}}
  -
  -\outer\def\unnumberedsec{\parsearg\unnumberedsecyyy}
  -\def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz
  -\def\unnumberedseczzz #1{\seccheck{unnumberedsec}%
  -\plainsecheading {#1}\gdef\thissection{#1}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash unnumbsecentry{#1}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\unnumbnoderef %
  -\penalty 10000 %
  -}}
  -
  -\outer\def\numberedsubsec{\parsearg\numberedsubsecyyy}
  -\def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz
  -\def\numberedsubseczzz #1{\seccheck{subsection}%
  -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
  -\subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash subsecentry %
  -{#1}{\the\chapno}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\donoderef %
  -\penalty 10000 %
  -}}
  +% @chapter, @appendix, @unnumbered.  Increment top-level counter, reset
  +% all lower-level sectioning counters to zero.
  +%
  +% Also set \chaplevelprefix, which we prepend to @float sequence numbers
  +% (e.g., figures), q.v.  By default (before any chapter), that is empty.
  +\let\chaplevelprefix = \empty
  +%
  +\outer\parseargdef\chapter{\numhead0{#1}} % normally numhead0 calls 
chapterzzz
  +\def\chapterzzz#1{%
  +  % section resetting is \global in case the chapter is in a group, such
  +  % as an @include file.
  +  \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
  +    \global\advance\chapno by 1
  +  %
  +  % Used for \float.
  +  \gdef\chaplevelprefix{\the\chapno.}%
  +  \resetallfloatnos
  +  %
  +  \message{\putwordChapter\space \the\chapno}%
  +  %
  +  % Write the actual heading.
  +  \chapmacro{#1}{Ynumbered}{\the\chapno}%
  +  %
  +  % So @section and the like are numbered underneath this chapter.
  +  \global\let\section = \numberedsec
  +  \global\let\subsection = \numberedsubsec
  +  \global\let\subsubsection = \numberedsubsubsec
  +}
   
  -\outer\def\appendixsubsec{\parsearg\appendixsubsecyyy}
  -\def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz
  -\def\appendixsubseczzz #1{\seccheck{appendixsubsec}%
  -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
  -\subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash subsecentry %
  -{#1}{\appendixletter}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\appendixnoderef %
  -\penalty 10000 %
  -}}
  +\outer\parseargdef\appendix{\apphead0{#1}} % normally apphead0 calls 
appendixzzz
  +\def\appendixzzz#1{%
  +  \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
  +    \global\advance\appendixno by 1
  +  \gdef\chaplevelprefix{\appendixletter.}%
  +  \resetallfloatnos
  +  %
  +  \def\appendixnum{\putwordAppendix\space \appendixletter}%
  +  \message{\appendixnum}%
  +  %
  +  \chapmacro{#1}{Yappendix}{\appendixletter}%
  +  %
  +  \global\let\section = \appendixsec
  +  \global\let\subsection = \appendixsubsec
  +  \global\let\subsubsection = \appendixsubsubsec
  +}
   
  -\outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy}
  -\def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls 
unnumberedsubseczzz
  -\def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}%
  -\plainsecheading {#1}\gdef\thissection{#1}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\unnumbnoderef %
  -\penalty 10000 %
  -}}
  +\outer\parseargdef\unnumbered{\unnmhead0{#1}} % normally unnmhead0 calls 
unnumberedzzz
  +\def\unnumberedzzz#1{%
  +  \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
  +    \global\advance\unnumberedno by 1
  +  %
  +  % Since an unnumbered has no number, no prefix for figures.
  +  \global\let\chaplevelprefix = \empty
  +  \resetallfloatnos
  +  %
  +  % This used to be simply \message{#1}, but TeX fully expands the
  +  % argument to \message.  Therefore, if #1 contained @-commands, TeX
  +  % expanded them.  For example, in address@hidden The @cite{Book}', TeX
  +  % expanded @cite (which turns out to cause errors because \cite is meant
  +  % to be executed, not expanded).
  +  %
  +  % Anyway, we don't want the fully-expanded definition of @cite to appear
  +  % as a result of the \message, we just want address@hidden' itself.  We use
  +  % \the<toks register> to achieve this: TeX expands \the<toks> only once,
  +  % simply yielding the contents of <toks register>.  (We also do this for
  +  % the toc entries.)
  +  \toks0 = {#1}%
  +  \message{(\the\toks0)}%
  +  %
  +  \chapmacro{#1}{Ynothing}{\the\unnumberedno}%
  +  %
  +  \global\let\section = \unnumberedsec
  +  \global\let\subsection = \unnumberedsubsec
  +  \global\let\subsubsection = \unnumberedsubsubsec
  +}
   
  -\outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy}
  -\def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz
  -\def\numberedsubsubseczzz #1{\seccheck{subsubsection}%
  -\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
  -\subsubsecheading {#1}
  -  {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash subsubsecentry %
  -  {#1}
  -  {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}
  -  {\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\donoderef %
  -\penalty 10000 %
  -}}
  +% @centerchap is like @unnumbered, but the heading is centered.
  +\outer\parseargdef\centerchap{%
  +  % Well, we could do the following in a group, but that would break
  +  % an assumption that \chapmacro is called at the outermost level.
  +  % Thus we are safer this way:              --kasal, 24feb04
  +  \let\centerparametersmaybe = \centerparameters
  +  \unnmhead0{#1}%
  +  \let\centerparametersmaybe = \relax
  +}
   
  -\outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy}
  -\def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz
  -\def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}%
  -\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
  -\subsubsecheading {#1}
  -  {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash subsubsecentry{#1}%
  -  {\appendixletter}
  -  {\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\appendixnoderef %
  -\penalty 10000 %
  -}}
  +% @top is like @unnumbered.
  +\let\top\unnumbered
   
  -\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy}
  -\def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally 
unnumberedsubsubseczzz
  -\def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}%
  -\plainsecheading {#1}\gdef\thissection{#1}%
  -{\chapternofonts%
  -\edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}%
  -\escapechar=`\\%
  -\write \contentsfile \temp %
  -\unnumbnoderef %
  -\penalty 10000 %
  -}}
  +% Sections.
  +\outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz
  +\def\seczzz#1{%
  +  \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
  +  \sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}%
  +}
  +
  +\outer\parseargdef\appendixsection{\apphead1{#1}} % normally calls 
appendixsectionzzz
  +\def\appendixsectionzzz#1{%
  +  \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
  +  \sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}%
  +}
  +\let\appendixsec\appendixsection
  +
  +\outer\parseargdef\unnumberedsec{\unnmhead1{#1}} % normally calls 
unnumberedseczzz
  +\def\unnumberedseczzz#1{%
  +  \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
  +  \sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}%
  +}
   
  -% These are variants which are not "outer", so they can appear in @ifinfo.
  -% Actually, they should now be obsolete; ordinary section commands should 
work.
  -\def\infotop{\parsearg\unnumberedzzz}
  -\def\infounnumbered{\parsearg\unnumberedzzz}
  -\def\infounnumberedsec{\parsearg\unnumberedseczzz}
  -\def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
  -\def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
  -
  -\def\infoappendix{\parsearg\appendixzzz}
  -\def\infoappendixsec{\parsearg\appendixseczzz}
  -\def\infoappendixsubsec{\parsearg\appendixsubseczzz}
  -\def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz}
  -
  -\def\infochapter{\parsearg\chapterzzz}
  -\def\infosection{\parsearg\sectionzzz}
  -\def\infosubsection{\parsearg\subsectionzzz}
  -\def\infosubsubsection{\parsearg\subsubsectionzzz}
  +% Subsections.
  +\outer\parseargdef\numberedsubsec{\numhead2{#1}} % normally calls 
numberedsubseczzz
  +\def\numberedsubseczzz#1{%
  +  \global\subsubsecno=0  \global\advance\subsecno by 1
  +  
\sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}%
  +}
  +
  +\outer\parseargdef\appendixsubsec{\apphead2{#1}} % normally calls 
appendixsubseczzz
  +\def\appendixsubseczzz#1{%
  +  \global\subsubsecno=0  \global\advance\subsecno by 1
  +  \sectionheading{#1}{subsec}{Yappendix}%
  +                 {\appendixletter.\the\secno.\the\subsecno}%
  +}
  +
  +\outer\parseargdef\unnumberedsubsec{\unnmhead2{#1}} %normally calls 
unnumberedsubseczzz
  +\def\unnumberedsubseczzz#1{%
  +  \global\subsubsecno=0  \global\advance\subsecno by 1
  +  \sectionheading{#1}{subsec}{Ynothing}%
  +                 {\the\unnumberedno.\the\secno.\the\subsecno}%
  +}
  +
  +% Subsubsections.
  +\outer\parseargdef\numberedsubsubsec{\numhead3{#1}} % normally 
numberedsubsubseczzz
  +\def\numberedsubsubseczzz#1{%
  +  \global\advance\subsubsecno by 1
  +  \sectionheading{#1}{subsubsec}{Ynumbered}%
  +                 {\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno}%
  +}
  +
  +\outer\parseargdef\appendixsubsubsec{\apphead3{#1}} % normally 
appendixsubsubseczzz
  +\def\appendixsubsubseczzz#1{%
  +  \global\advance\subsubsecno by 1
  +  \sectionheading{#1}{subsubsec}{Yappendix}%
  +                 {\appendixletter.\the\secno.\the\subsecno.\the\subsubsecno}%
  +}
  +
  +\outer\parseargdef\unnumberedsubsubsec{\unnmhead3{#1}} %normally 
unnumberedsubsubseczzz
  +\def\unnumberedsubsubseczzz#1{%
  +  \global\advance\subsubsecno by 1
  +  \sectionheading{#1}{subsubsec}{Ynothing}%
  +                 
{\the\unnumberedno.\the\secno.\the\subsecno.\the\subsubsecno}%
  +}
   
   % These macros control what the section commands do, according
   % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
   % Define them by default for a numbered chapter.
  -\global\let\section = \numberedsec
  -\global\let\subsection = \numberedsubsec
  -\global\let\subsubsection = \numberedsubsubsec
  +\let\section = \numberedsec
  +\let\subsection = \numberedsubsec
  +\let\subsubsection = \numberedsubsubsec
   
   % Define @majorheading, @heading and @subheading
   
  -% NOTE on use of \vbox for chapter headings, section headings, and
  -% such:
  -%    1) We use \vbox rather than the earlier \line to permit
  -%       overlong headings to fold.
  -%    2) \hyphenpenalty is set to 10000 because hyphenation in a
  -%       heading is obnoxious; this forbids it.
  +% NOTE on use of \vbox for chapter headings, section headings, and such:
  +%       1) We use \vbox rather than the earlier \line to permit
  +%          overlong headings to fold.
  +%       2) \hyphenpenalty is set to 10000 because hyphenation in a
  +%          heading is obnoxious; this forbids it.
   %       3) Likewise, headings look best if no \parindent is used, and
   %          if justification is not attempted.  Hence \raggedright.
   
   
  -\def\majorheading{\parsearg\majorheadingzzz}
  -\def\majorheadingzzz #1{%
  -{\advance\chapheadingskip by 10pt \chapbreak }%
  -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                  \parindent=0pt\raggedright
  -                  \rm #1\hfill}}\bigskip \par\penalty 200}
  -
  -\def\chapheading{\parsearg\chapheadingzzz}
  -\def\chapheadingzzz #1{\chapbreak %
  -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                  \parindent=0pt\raggedright
  -                  \rm #1\hfill}}\bigskip \par\penalty 200}
  -
  -\def\heading{\parsearg\secheadingi}
  -
  -\def\subheading{\parsearg\subsecheadingi}
  -
  -\def\subsubheading{\parsearg\subsubsecheadingi}
  +\def\majorheading{%
  +  {\advance\chapheadingskip by 10pt \chapbreak }%
  +  \parsearg\chapheadingzzz
  +}
  +
  +\def\chapheading{\chapbreak \parsearg\chapheadingzzz}
  +\def\chapheadingzzz#1{%
  +  {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  +                    \parindent=0pt\raggedright
  +                    \rm #1\hfill}}%
  +  \bigskip \par\penalty 200\relax
  +  \suppressfirstparagraphindent
  +}
  +
  +% @heading, @subheading, @subsubheading.
  +\parseargdef\heading{\sectionheading{#1}{sec}{Yomitfromtoc}{}
  +  \suppressfirstparagraphindent}
  +\parseargdef\subheading{\sectionheading{#1}{subsec}{Yomitfromtoc}{}
  +  \suppressfirstparagraphindent}
  +\parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{}
  +  \suppressfirstparagraphindent}
   
   % These macros generate a chapter, section, etc. heading only
   % (including whitespace, linebreaking, etc. around it),
  @@ -2723,12 +4334,10 @@
   %%% Args are the skip and penalty (usually negative)
   \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
   
  -\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
  -
   %%% Define plain chapter starts, and page on/off switching for it
   % Parameter controlling skip before chapter headings (if needed)
   
  -\newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt
  +\newskip\chapheadingskip
   
   \def\chapbreak{\dobreak \chapheadingskip {-4000}}
   \def\chappager{\par\vfill\supereject}
  @@ -2736,254 +4345,466 @@
   
   \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
   
  -\def\CHAPPAGoff{
  +\def\CHAPPAGoff{%
  +\global\let\contentsalignmacro = \chappager
   \global\let\pchapsepmacro=\chapbreak
   \global\let\pagealignmacro=\chappager}
   
  -\def\CHAPPAGon{
  +\def\CHAPPAGon{%
  +\global\let\contentsalignmacro = \chappager
   \global\let\pchapsepmacro=\chappager
   \global\let\pagealignmacro=\chappager
   \global\def\HEADINGSon{\HEADINGSsingle}}
   
  -\def\CHAPPAGodd{
  +\def\CHAPPAGodd{%
  +\global\let\contentsalignmacro = \chapoddpage
   \global\let\pchapsepmacro=\chapoddpage
   \global\let\pagealignmacro=\chapoddpage
   \global\def\HEADINGSon{\HEADINGSdouble}}
   
   \CHAPPAGon
   
  -\def\CHAPFplain{
  -\global\let\chapmacro=\chfplain
  -\global\let\unnumbchapmacro=\unnchfplain}
  -
  -\def\chfplain #1#2{%
  +% Chapter opening.
  +%
  +% #1 is the text, #2 is the section type (Ynumbered, Ynothing,
  +% Yappendix, Yomitfromtoc), #3 the chapter number.
  +%
  +% To test against our argument.
  +\def\Ynothingkeyword{Ynothing}
  +\def\Yomitfromtockeyword{Yomitfromtoc}
  +\def\Yappendixkeyword{Yappendix}
  +%
  +\def\chapmacro#1#2#3{%
     \pchapsepmacro
     {%
  -    \chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                     \parindent=0pt\raggedright
  -                     \rm #2\enspace #1}%
  +    \chapfonts \rm
  +    %
  +    % Have to define \thissection before calling \donoderef, because the
  +    % xref code eventually uses it.  On the other hand, it has to be called
  +    % after \pchapsepmacro, or the headline will change too soon.
  +    \gdef\thissection{#1}%
  +    \gdef\thischaptername{#1}%
  +    %
  +    % Only insert the separating space if we have a chapter/appendix
  +    % number, and don't print the unnumbered ``number''.
  +    \def\temptype{#2}%
  +    \ifx\temptype\Ynothingkeyword
  +      \setbox0 = \hbox{}%
  +      \def\toctype{unnchap}%
  +      \gdef\thischapter{#1}%
  +    \else\ifx\temptype\Yomitfromtockeyword
  +      \setbox0 = \hbox{}% contents like unnumbered, but no toc entry
  +      \def\toctype{omit}%
  +      \gdef\thischapter{}%
  +    \else\ifx\temptype\Yappendixkeyword
  +      \setbox0 = \hbox{\putwordAppendix{} #3\enspace}%
  +      \def\toctype{app}%
  +      % We don't substitute the actual chapter name into \thischapter
  +      % because we don't want its macros evaluated now.  And we don't
  +      % use \thissection because that changes with each section.
  +      %
  +      \xdef\thischapter{\putwordAppendix{} \appendixletter:
  +                        \noexpand\thischaptername}%
  +    \else
  +      \setbox0 = \hbox{#3\enspace}%
  +      \def\toctype{numchap}%
  +      \xdef\thischapter{\putwordChapter{} \the\chapno:
  +                        \noexpand\thischaptername}%
  +    \fi\fi\fi
  +    %
  +    % Write the toc entry for this chapter.  Must come before the
  +    % \donoderef, because we include the current node name in the toc
  +    % entry, and \donoderef resets it to empty.
  +    \writetocentry{\toctype}{#1}{#3}%
  +    %
  +    % For pdftex, we have to write out the node definition (aka, make
  +    % the pdfdest) after any page break, but before the actual text has
  +    % been typeset.  If the destination for the pdf outline is after the
  +    % text, then jumping from the outline may wind up with the text not
  +    % being visible, for instance under high magnification.
  +    \donoderef{#2}%
  +    %
  +    % Typeset the actual heading.
  +    \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
  +          \hangindent=\wd0 \centerparametersmaybe
  +          \unhbox0 #1\par}%
     }%
  -  \bigskip
  -  \penalty5000
  +  \nobreak\bigskip % no page break after a chapter title
  +  \nobreak
   }
   
  -\def\unnchfplain #1{%
  -\pchapsepmacro %
  -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                  \parindent=0pt\raggedright
  -                  \rm #1\hfill}}\bigskip \par\penalty 10000 %
  +% @centerchap -- centered and unnumbered.
  +\let\centerparametersmaybe = \relax
  +\def\centerparameters{%
  +  \advance\rightskip by 3\rightskip
  +  \leftskip = \rightskip
  +  \parfillskip = 0pt
   }
  -\CHAPFplain % The default
   
  +
  +% I don't think this chapter style is supported any more, so I'm not
  +% updating it with the new noderef stuff.  We'll see.  --karl, 11aug03.
  +%
  +\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
  +%
   \def\unnchfopen #1{%
   \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
                          \parindent=0pt\raggedright
  -                       \rm #1\hfill}}\bigskip \par\penalty 10000 %
  +                       \rm #1\hfill}}\bigskip \par\nobreak
   }
  -
   \def\chfopen #1#2{\chapoddpage {\chapfonts
   \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
   \par\penalty 5000 %
   }
  +\def\centerchfopen #1{%
  +\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  +                       \parindent=0pt
  +                       \hfill {\rm #1}\hfill}}\bigskip \par\nobreak
  +}
  +\def\CHAPFopen{%
  +  \global\let\chapmacro=\chfopen
  +  \global\let\centerchapmacro=\centerchfopen}
   
  -\def\CHAPFopen{
  -\global\let\chapmacro=\chfopen
  -\global\let\unnumbchapmacro=\unnchfopen}
  -
  -% Parameter controlling skip before section headings.
  -
  -\newskip \subsecheadingskip  \subsecheadingskip = 17pt plus 8pt minus 4pt
  -\def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
  -
  -\newskip \secheadingskip  \secheadingskip = 21pt plus 8pt minus 4pt
  -\def\secheadingbreak{\dobreak \secheadingskip {-1000}}
  -
  -% @paragraphindent  is defined for the Info formatting commands only.
  -\let\paragraphindent=\comment
  -
  -% Section fonts are the base font at magstep2, which produces
  -% a size a bit more than 14 points in the default situation.
  -
  -\def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}}
  -\def\plainsecheading #1{\secheadingi {#1}}
  -\def\secheadingi #1{{\advance \secheadingskip by \parskip %
  -\secheadingbreak}%
  -{\secfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                 \parindent=0pt\raggedright
  -                 \rm #1\hfill}}%
  -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
  -
  -
  -% Subsection fonts are the base font at magstep1,
  -% which produces a size of 12 points.
  -
  -\def\subsecheading #1#2#3#4{\subsecheadingi {#2.#3.#4\enspace #1}}
  -\def\subsecheadingi #1{{\advance \subsecheadingskip by \parskip %
  -\subsecheadingbreak}%
  -{\subsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                     \parindent=0pt\raggedright
  -                     \rm #1\hfill}}%
  -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
  -
  -\def\subsubsecfonts{\subsecfonts} % Maybe this should change:
  -                               % Perhaps make sssec fonts scaled
  -                               % magstep half
  -\def\subsubsecheading #1#2#3#4#5{\subsubsecheadingi {#2.#3.#4.#5\enspace #1}}
  -\def\subsubsecheadingi #1{{\advance \subsecheadingskip by \parskip %
  -\subsecheadingbreak}%
  -{\subsubsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000
  -                       \parindent=0pt\raggedright
  -                       \rm #1\hfill}}%
  -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000}
   
  +% Section titles.  These macros combine the section number parts and
  +% call the generic \sectionheading to do the printing.
  +%
  +\newskip\secheadingskip
  +\def\secheadingbreak{\dobreak \secheadingskip{-1000}}
  +
  +% Subsection titles.
  +\newskip\subsecheadingskip
  +\def\subsecheadingbreak{\dobreak \subsecheadingskip{-500}}
  +
  +% Subsubsection titles.
  +\def\subsubsecheadingskip{\subsecheadingskip}
  +\def\subsubsecheadingbreak{\subsecheadingbreak}
   
  -\message{toc printing,}
   
  -% Finish up the main text and prepare to read what we've written
  -% to \contentsfile.
  +% Print any size, any type, section title.
  +%
  +% #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is
  +% the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the
  +% section number.
  +%
  +\def\sectionheading#1#2#3#4{%
  +  {%
  +    % Switch to the right set of fonts.
  +    \csname #2fonts\endcsname \rm
  +    %
  +    % Insert space above the heading.
  +    \csname #2headingbreak\endcsname
  +    %
  +    % Only insert the space after the number if we have a section number.
  +    \def\sectionlevel{#2}%
  +    \def\temptype{#3}%
  +    %
  +    \ifx\temptype\Ynothingkeyword
  +      \setbox0 = \hbox{}%
  +      \def\toctype{unn}%
  +      \gdef\thissection{#1}%
  +    \else\ifx\temptype\Yomitfromtockeyword
  +      % for @headings -- no section number, don't include in toc,
  +      % and don't redefine \thissection.
  +      \setbox0 = \hbox{}%
  +      \def\toctype{omit}%
  +      \let\sectionlevel=\empty
  +    \else\ifx\temptype\Yappendixkeyword
  +      \setbox0 = \hbox{#4\enspace}%
  +      \def\toctype{app}%
  +      \gdef\thissection{#1}%
  +    \else
  +      \setbox0 = \hbox{#4\enspace}%
  +      \def\toctype{num}%
  +      \gdef\thissection{#1}%
  +    \fi\fi\fi
  +    %
  +    % Write the toc entry (before \donoderef).  See comments in \chfplain.
  +    \writetocentry{\toctype\sectionlevel}{#1}{#4}%
  +    %
  +    % Write the node reference (= pdf destination for pdftex).
  +    % Again, see comments in \chfplain.
  +    \donoderef{#3}%
  +    %
  +    % Output the actual section heading.
  +    \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
  +          \hangindent=\wd0  % zero if no section number
  +          \unhbox0 #1}%
  +  }%
  +  % Add extra space after the heading -- half of whatever came above it.
  +  % Don't allow stretch, though.
  +  \kern .5 \csname #2headingskip\endcsname
  +  %
  +  % Do not let the kern be a potential breakpoint, as it would be if it
  +  % was followed by glue.
  +  \nobreak
  +  %
  +  % We'll almost certainly start a paragraph next, so don't let that
  +  % glue accumulate.  (Not a breakpoint because it's preceded by a
  +  % discardable item.)
  +  \vskip-\parskip
  +  % 
  +  % This is purely so the last item on the list is a known \penalty >
  +  % 10000.  This is so \startdefun can avoid allowing breakpoints after
  +  % section headings.  Otherwise, it would insert a valid breakpoint between:
  +  % 
  +  %   @section sec-whatever
  +  %   @deffn def-whatever
  +  \penalty 10001
  +}
  +
  +
  +\message{toc,}
  +% Table of contents.
  +\newwrite\tocfile
  +
  +% Write an entry to the toc file, opening it if necessary.
  +% Called from @chapter, etc.
  +%
  +% Example usage: \writetocentry{sec}{Section Name}{\the\chapno.\the\secno}
  +% We append the current node name (if any) and page number as additional
  +% arguments for the \{chap,sec,...}entry macros which will eventually
  +% read this.  The node name is used in the pdf outlines as the
  +% destination to jump to.
  +%
  +% We open the .toc file for writing here instead of at @setfilename (or
  +% any other fixed time) so that @contents can be anywhere in the document.
  +% But if #1 is `omit', then we don't do anything.  This is used for the
  +% table of contents chapter openings themselves.
  +%
  +\newif\iftocfileopened
  +\def\omitkeyword{omit}%
  +%
  +\def\writetocentry#1#2#3{%
  +  \edef\writetoctype{#1}%
  +  \ifx\writetoctype\omitkeyword \else
  +    \iftocfileopened\else
  +      \immediate\openout\tocfile = \jobname.toc
  +      \global\tocfileopenedtrue
  +    \fi
  +    %
  +    \iflinks
  +      {\atdummies \turnoffactive
  +       \edef\temp{%
  +         address@hidden
  +       \temp
  +      }
  +    \fi
  +  \fi
  +  %
  +  % Tell \shipout to create a pdf destination on each page, if we're
  +  % writing pdf.  These are used in the table of contents.  We can't
  +  % just write one on every page because the title pages are numbered
  +  % 1 and 2 (the page numbers aren't printed), and so are the first
  +  % two pages of the document.  Thus, we'd have two destinations named
  +  % `1', and two named `2'.
  +  \ifpdf \global\pdfmakepagedesttrue \fi
  +}
  +
  +
  +% These characters do not print properly in the Computer Modern roman
  +% fonts, so we must take special care.  This is more or less redundant
  +% with the Texinfo input format setup at the end of this file.
  +% 
  +\def\activecatcodes{%
  +  \catcode`\"=\active
  +  \catcode`\$=\active
  +  \catcode`\<=\active
  +  \catcode`\>=\active
  +  \catcode`\\=\active
  +  \catcode`\^=\active
  +  \catcode`\_=\active
  +  \catcode`\|=\active
  +  \catcode`\~=\active
  +}
  +
  +
  +% Read the toc file, which is essentially Texinfo input.
  +\def\readtocfile{%
  +  \setupdatafile
  +  \activecatcodes
  +  \input \jobname.toc
  +}
   
   \newskip\contentsrightmargin \contentsrightmargin=1in
  +\newcount\savepageno
  +\newcount\lastnegativepageno \lastnegativepageno = -1
  +
  +% Prepare to read what we've written to \tocfile.
  +%
   \def\startcontents#1{%
  -   \pagealignmacro
  -   \immediate\closeout \contentsfile
  -   \ifnum \pageno>0
  -      \pageno = -1           % Request roman numbered pages.
  -   \fi
  -   % Don't need to put `Contents' or `Short Contents' in the headline.
  -   % It is abundantly clear what they are.
  -   \unnumbchapmacro{#1}\def\thischapter{}%
  -   \begingroup               % Set up to handle contents files properly.
  -      \catcode`\\=0  \catcode`\{=1  \catcode`\}=2  address@hidden
  -      \catcode`\^=7 % to see ^^e4 as \"a etc. address@hidden
  -      \raggedbottom             % Worry more about breakpoints than the 
bottom.
  -      \advance\hsize by -\contentsrightmargin % Don't use the full line 
length.
  +  % If @setchapternewpage on, and @headings double, the contents should
  +  % start on an odd page, unlike chapters.  Thus, we maintain
  +  % \contentsalignmacro in parallel with \pagealignmacro.
  +  % From: Torbjorn Granlund <address@hidden>
  +  \contentsalignmacro
  +  \immediate\closeout\tocfile
  +  %
  +  % Don't need to put `Contents' or `Short Contents' in the headline.
  +  % It is abundantly clear what they are.
  +  \def\thischapter{}%
  +  \chapmacro{#1}{Yomitfromtoc}{}%
  +  %
  +  \savepageno = \pageno
  +  \begingroup                  % Set up to handle contents files properly.
  +    \raggedbottom              % Worry more about breakpoints than the 
bottom.
  +    \advance\hsize by -\contentsrightmargin % Don't use the full line length.
  +    %
  +    % Roman numerals for page numbers.
  +    \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi
   }
   
   
   % Normal (long) toc.
  -\outer\def\contents{%
  -   \startcontents{\putwordTableofContents}%
  -      \input \jobname.toc
  -   \endgroup
  -   \vfill \eject
  +\def\contents{%
  +  \startcontents{\putwordTOC}%
  +    \openin 1 \jobname.toc
  +    \ifeof 1 \else
  +      \readtocfile
  +    \fi
  +    \vfill \eject
  +    \contentsalignmacro % in case @setchapternewpage odd is in effect
  +    \ifeof 1 \else
  +      \pdfmakeoutlines
  +    \fi
  +    \closein 1
  +  \endgroup
  +  \lastnegativepageno = \pageno
  +  \global\pageno = \savepageno
   }
   
   % And just the chapters.
  -\outer\def\summarycontents{%
  -   \startcontents{\putwordShortContents}%
  -      %
  -      \let\chapentry = \shortchapentry
  -      \let\unnumbchapentry = \shortunnumberedentry
  -      % We want a true roman here for the page numbers.
  -      \secfonts
  -      \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl
  -      \rm
  -      \advance\baselineskip by 1pt % Open it up a little.
  -      \def\secentry ##1##2##3##4{}
  -      \def\unnumbsecentry ##1##2{}
  -      \def\subsecentry ##1##2##3##4##5{}
  -      \def\unnumbsubsecentry ##1##2{}
  -      \def\subsubsecentry ##1##2##3##4##5##6{}
  -      \def\unnumbsubsubsecentry ##1##2{}
  -      \input \jobname.toc
  -   \endgroup
  -   \vfill \eject
  +\def\summarycontents{%
  +  \startcontents{\putwordShortTOC}%
  +    %
  +    \let\numchapentry = \shortchapentry
  +    \let\appentry = \shortchapentry
  +    \let\unnchapentry = \shortunnchapentry
  +    % We want a true roman here for the page numbers.
  +    \secfonts
  +    \let\rm=\shortcontrm \let\bf=\shortcontbf
  +    \let\sl=\shortcontsl \let\tt=\shortconttt
  +    \rm
  +    \hyphenpenalty = 10000
  +    \advance\baselineskip by 1pt % Open it up a little.
  +    \def\numsecentry##1##2##3##4{}
  +    \let\appsecentry = \numsecentry
  +    \let\unnsecentry = \numsecentry
  +    \let\numsubsecentry = \numsecentry
  +    \let\appsubsecentry = \numsecentry
  +    \let\unnsubsecentry = \numsecentry
  +    \let\numsubsubsecentry = \numsecentry
  +    \let\appsubsubsecentry = \numsecentry
  +    \let\unnsubsubsecentry = \numsecentry
  +    \openin 1 \jobname.toc
  +    \ifeof 1 \else
  +      \readtocfile
  +    \fi
  +    \closein 1
  +    \vfill \eject
  +    \contentsalignmacro % in case @setchapternewpage odd is in effect
  +  \endgroup
  +  \lastnegativepageno = \pageno
  +  \global\pageno = \savepageno
   }
   \let\shortcontents = \summarycontents
   
  +% Typeset the label for a chapter or appendix for the short contents.
  +% The arg is, e.g., `A' for an appendix, or `3' for a chapter.
  +%
  +\def\shortchaplabel#1{%
  +  % This space should be enough, since a single number is .5em, and the
  +  % widest letter (M) is 1em, at least in the Computer Modern fonts.
  +  % But use \hss just in case.
  +  % (This space doesn't include the extra space that gets added after
  +  % the label; that gets put in by \shortchapentry above.)
  +  %
  +  % We'd like to right-justify chapter numbers, but that looks strange
  +  % with appendix letters.  And right-justifying numbers and
  +  % left-justifying letters looks strange when there is less than 10
  +  % chapters.  Have to read the whole toc once to know how many chapters
  +  % there are before deciding ...
  +  \hbox to 1em{#1\hss}%
  +}
  +
   % These macros generate individual entries in the table of contents.
   % The first argument is the chapter or section name.
   % The last argument is the page number.
   % The arguments in between are the chapter number, section number, ...
   
  -% Chapter-level things, for both the long and short contents.
  -\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
  -
  -% See comments in \dochapentry re vbox and related settings
  -\def\shortchapentry#1#2#3{%
  -  \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno{#3}}%
  +% Chapters, in the main contents.
  +\def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}}
  +%
  +% Chapters, in the short toc.
  +% See comments in \dochapentry re vbox and related settings.
  +\def\shortchapentry#1#2#3#4{%
  +  \tocentry{\shortchaplabel{#2}\labelspace 
#1}{\doshortpageno\bgroup#4\egroup}%
   }
   
  -% Typeset the label for a chapter or appendix for the short contents.
  -% The arg is, e.g. `Appendix A' for an appendix, or `3' for a chapter.
  -% We could simplify the code here by writing out an \appendixentry
  -% command in the toc file for appendices, instead of using \chapentry
  -% for both, but it doesn't seem worth it.
  -\setbox0 = \hbox{\shortcontrm \putwordAppendix }
  -\newdimen\shortappendixwidth \shortappendixwidth = \wd0
  -
  -\def\shortchaplabel#1{%
  -  % We typeset #1 in a box of constant width, regardless of the text of
  -  % #1, so the chapter titles will come out aligned.
  -  \setbox0 = \hbox{#1}%
  -  \dimen0 = \ifdim\wd0 > \shortappendixwidth \shortappendixwidth \else 0pt 
\fi
  -  %
  -  % This space should be plenty, since a single number is .5em, and the
  -  % widest letter (M) is 1em, at least in the Computer Modern fonts.
  -  % (This space doesn't include the extra space that gets added after
  -  % the label; that gets put in in \shortchapentry above.)
  -  \advance\dimen0 by 1.1em
  -  \hbox to \dimen0{#1\hfil}%
  -}
  +% Appendices, in the main contents.
  +% Need the word Appendix, and a fixed-size box.
  +%
  +\def\appendixbox#1{%
  +  % We use M since it's probably the widest letter.
  +  \setbox0 = \hbox{\putwordAppendix{} M}%
  +  \hbox to \wd0{\putwordAppendix{} #1\hss}}
  +%
  +\def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}}
   
  -\def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}
  -\def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno{#2}}}
  +% Unnumbered chapters.
  +\def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}}
  +\def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}}
   
   % Sections.
  -\def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
  -\def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}
  +\def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}}
  +\let\appsecentry=\numsecentry
  +\def\unnsecentry#1#2#3#4{\dosecentry{#1}{#4}}
   
   % Subsections.
  -\def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}}
  -\def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}}
  +\def\numsubsecentry#1#2#3#4{\dosubsecentry{#2\labelspace#1}{#4}}
  +\let\appsubsecentry=\numsubsecentry
  +\def\unnsubsecentry#1#2#3#4{\dosubsecentry{#1}{#4}}
   
   % And subsubsections.
  -\def\subsubsecentry#1#2#3#4#5#6{%
  -  \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
  -\def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
  -
  +\def\numsubsubsecentry#1#2#3#4{\dosubsubsecentry{#2\labelspace#1}{#4}}
  +\let\appsubsubsecentry=\numsubsubsecentry
  +\def\unnsubsubsecentry#1#2#3#4{\dosubsubsecentry{#1}{#4}}
   
   % This parameter controls the indentation of the various levels.
  -\newdimen\tocindent \tocindent = 3pc
  +% Same as \defaultparindent.
  +\newdimen\tocindent \tocindent = 15pt
   
   % Now for the actual typesetting. In all these, #1 is the text and #2 is the
   % page number.
   %
  -% If the toc has to be broken over pages, we would want to be at chapters
  +% If the toc has to be broken over pages, we want it to be at chapters
   % if at all possible; hence the \penalty.
   \def\dochapentry#1#2{%
  -   \penalty-300 \vskip\baselineskip
  +   \penalty-300 \vskip1\baselineskip plus.33\baselineskip 
minus.25\baselineskip
      \begingroup
        \chapentryfonts
  -     \tocentry{#1}{\dopageno{#2}}%
  +     \tocentry{#1}{\dopageno\bgroup#2\egroup}%
      \endgroup
  -   \nobreak\vskip .25\baselineskip
  +   \nobreak\vskip .25\baselineskip plus.1\baselineskip
   }
   
   \def\dosecentry#1#2{\begingroup
     \secentryfonts \leftskip=\tocindent
  -  \tocentry{#1}{\dopageno{#2}}%
  +  \tocentry{#1}{\dopageno\bgroup#2\egroup}%
   \endgroup}
   
   \def\dosubsecentry#1#2{\begingroup
     \subsecentryfonts \leftskip=2\tocindent
  -  \tocentry{#1}{\dopageno{#2}}%
  +  \tocentry{#1}{\dopageno\bgroup#2\egroup}%
   \endgroup}
   
   \def\dosubsubsecentry#1#2{\begingroup
     \subsubsecentryfonts \leftskip=3\tocindent
  -  \tocentry{#1}{\dopageno{#2}}%
  +  \tocentry{#1}{\dopageno\bgroup#2\egroup}%
   \endgroup}
   
  -% Final typesetting of a toc entry; we use the same \entry macro as for
  -% the index entries, but we want to suppress hyphenation here.  (We
  -% can't do that in the \entry macro, since index entries might consist
  -% of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.)
  -%
  -\def\tocentry#1#2{\begingroup
  -  \hyphenpenalty = 10000
  -  \entry{#1}{#2}%
  -\endgroup}
  +% We use the same \entry macro as for the index entries.
  +\let\tocentry = \entry
   
   % Space between chapter (or whatever) number and the title.
   \def\labelspace{\hskip1em \relax}
  @@ -2993,92 +4814,91 @@
   
   \def\chapentryfonts{\secfonts \rm}
   \def\secentryfonts{\textfonts}
  -\let\subsecentryfonts = \textfonts
  -\let\subsubsecentryfonts = \textfonts
  +\def\subsecentryfonts{\textfonts}
  +\def\subsubsecentryfonts{\textfonts}
   
   
   \message{environments,}
  +% @foo ... @end foo.
   
  +% @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
  +%
   % Since these characters are used in examples, it should be an even number of
   % \tt widths. Each \tt character is 1en, so two makes it 1em.
  -% Furthermore, these definitions must come after we define our fonts.
  -\newbox\dblarrowbox    \newbox\longdblarrowbox
  -\newbox\pushcharbox    \newbox\bullbox
  -\newbox\equivbox       \newbox\errorbox
  -
  -\let\ptexequiv = \equiv
  -
  -%{\tentt
  -%\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
  -%\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
  -%\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil}
  -%\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil}
  -% Adapted from the manmac format (p.420 of TeXbook)
  -%\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width 
.85ex
  -%                                      depth .1ex\hfil}
  -%}
  -
  +%
   \def\point{$\star$}
  -
   \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
   \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
   \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
  -
   \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
   
  +% The @error{} command.
   % Adapted from the TeXbook's \boxit.
  +%
  +\newbox\errorbox
  +%
   {\tentt \global\dimen0 = 3em}% Width of the box.
   \dimen2 = .55pt % Thickness of rules
   % The text. (`r' is open on the right, `e' somewhat less so on the left.)
   \setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
  -
  -\global\setbox\errorbox=\hbox to \dimen0{\hfil
  +%
  +\setbox\errorbox=\hbox to \dimen0{\hfil
      \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
      \advance\hsize by -2\dimen2 % Rules.
  -   \vbox{
  +   \vbox{%
         \hrule height\dimen2
         \hbox{\vrule width\dimen2 \kern3pt          % Space to left of text.
            \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
            \kern3pt\vrule width\dimen2}% Space to right.
         \hrule height\dimen2}
       \hfil}
  -
  -% The @error{} command.
  +%
   \def\error{\leavevmode\lower.7ex\copy\errorbox}
   
   % @tex ... @end tex    escapes into raw Tex temporarily.
   % One exception: @ is still an escape character, so that @end tex works.
   % But \@ or @@ will get a plain tex @ character.
   
  -\def\tex{\begingroup
  -\catcode `\\=0 \catcode `\{=1 \catcode `\}=2
  -\catcode `\$=3 \catcode `\&=4 \catcode `\#=6
  -\catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
  -\catcode `\%=14
  -\catcode 43=12
  -\catcode`\"=12
  -\catcode`\==12
  -\catcode`\|=12
  -\catcode`\<=12
  -\catcode`\>=12
  -\escapechar=`\\
  -%
  -\let\~=\ptextilde
  -\let\{=\ptexlbrace
  -\let\}=\ptexrbrace
  -\let\.=\ptexdot
  -\let\*=\ptexstar
  -\let\dots=\ptexdots
  address@hidden@}%
  -\let\bullet=\ptexbullet
  -\let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl
  -\let\L=\ptexL
  -%
  -\let\Etex=\endgroup}
  -
  -% Define @lisp ... @endlisp.
  -% @lisp does a \begingroup so it can rebind things,
  -% including the definition of @endlisp (which normally is erroneous).
  +\envdef\tex{%
  +  \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
  +  \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
  +  \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie
  +  \catcode `\%=14
  +  \catcode `\+=\other
  +  \catcode `\"=\other
  +  \catcode `\|=\other
  +  \catcode `\<=\other
  +  \catcode `\>=\other
  +  \escapechar=`\\
  +  %
  +  \let\b=\ptexb
  +  \let\bullet=\ptexbullet
  +  \let\c=\ptexc
  +  \let\,=\ptexcomma
  +  \let\.=\ptexdot
  +  \let\dots=\ptexdots
  +  \let\equiv=\ptexequiv
  +  \let\!=\ptexexclam
  +  \let\i=\ptexi
  +  \let\indent=\ptexindent
  +  \let\noindent=\ptexnoindent
  +  \let\{=\ptexlbrace
  +  \let\+=\tabalign
  +  \let\}=\ptexrbrace
  +  \let\/=\ptexslash
  +  \let\*=\ptexstar
  +  \let\t=\ptext
  +  \let\frenchspacing=\plainfrenchspacing
  +  %
  +  \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
  +  \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt 
\endldots\,$\fi}%
  +  address@hidden@}%
  +}
  +% There is no need to define \Etex.
  +
  +% Define @lisp ... @end lisp.
  +% @lisp environment forms a group so it can rebind things,
  +% including the definition of @end lisp (which normally is erroneous).
   
   % Amount to narrow the margins by for @lisp.
   \newskip\lispnarrowing \lispnarrowing=0.4in
  @@ -3088,38 +4908,37 @@
   % have any width.
   \def\lisppar{\null\endgraf}
   
  -% Make each space character in the input produce a normal interword
  -% space in the output.  Don't allow a line break at this space, as this
  -% is used only in environments like @example, where each line of input
  -% should produce a line of output anyway.
  -%
  -{\obeyspaces %
  -\gdef\sepspaces{\obeyspaces\let =\tie}}
  -
  -% Define \obeyedspace to be our active space, whatever it is.  This is
  -% for use in \parsearg.
  -{\sepspaces%
  -\global\let\obeyedspace= }
  -
   % This space is always present above and below environments.
   \newskip\envskipamount \envskipamount = 0pt
   
   % Make spacing and below environment symmetrical.  We use \parskip here
   % to help in doing that, since in @example-like environments \parskip
   % is reset to zero; thus the \afterenvbreak inserts no space -- but the
  -% start of the next paragraph will insert \parskip
  +% start of the next paragraph will insert \parskip.
   %
  -\def\aboveenvbreak{{\advance\envskipamount by \parskip
  -\endgraf \ifdim\lastskip<\envskipamount
  -\removelastskip \penalty-50 \vskip\envskipamount \fi}}
  +\def\aboveenvbreak{{%
  +  % =10000 instead of <10000 because of a special case in \itemzzz and
  +  % \sectionheading, q.v.
  +  \ifnum \lastpenalty=10000 \else
  +    \advance\envskipamount by \parskip
  +    \endgraf
  +    \ifdim\lastskip<\envskipamount
  +      \removelastskip
  +      % it's not a good place to break if the last penalty was \nobreak
  +      % or better ...
  +      \ifnum\lastpenalty<10000 \penalty-50 \fi
  +      \vskip\envskipamount
  +    \fi
  +  \fi
  +}}
   
   \let\afterenvbreak = \aboveenvbreak
   
   % \nonarrowing is a flag.  If "set", @lisp etc don't narrow margins.
   \let\nonarrowing=\relax
   
  -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  -% \cartouche: draw rectangle w/rounded corners around argument
  +% @cartouche ... @end cartouche: draw rectangle w/rounded corners around
  +% environment contents.
   \font\circle=lcircle10
   \newdimen\circthick
   \newdimen\cartouter\newdimen\cartinner
  @@ -3131,62 +4950,62 @@
   \def\cbl{{\circle\char'012\hskip -6pt}}
   \def\cbr{{\hskip 6pt\circle\char'011}}
   \def\carttop{\hbox to \cartouter{\hskip\lskip
  -     \ctl\leaders\hrule height\circthick\hfil\ctr
  -     \hskip\rskip}}
  +        \ctl\leaders\hrule height\circthick\hfil\ctr
  +        \hskip\rskip}}
   \def\cartbot{\hbox to \cartouter{\hskip\lskip
  -     \cbl\leaders\hrule height\circthick\hfil\cbr
  -     \hskip\rskip}}
  +        \cbl\leaders\hrule height\circthick\hfil\cbr
  +        \hskip\rskip}}
   %
   \newskip\lskip\newskip\rskip
   
  -\long\def\cartouche{%
  -\begingroup
  -     \lskip=\leftskip \rskip=\rightskip
  -     \leftskip=0pt\rightskip=0pt %we want these *outside*.
  -     \cartinner=\hsize \advance\cartinner by-\lskip
  -                       \advance\cartinner by-\rskip
  -     \cartouter=\hsize
  -     \advance\cartouter by 18pt % allow for 3pt kerns on either
  -%                                 side, and for 6pt waste from
  -%                                 each corner char
  -     \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
  -     % Flag to tell @lisp, etc., not to narrow margin.
  -     \let\nonarrowing=\comment
  -     \vbox\bgroup
  -             \baselineskip=0pt\parskip=0pt\lineskip=0pt
  -             \carttop
  -             \hbox\bgroup
  -                     \hskip\lskip
  -                     \vrule\kern3pt
  -                     \vbox\bgroup
  -                             \hsize=\cartinner
  -                             \kern3pt
  -                             \begingroup
  -                                     \baselineskip=\normbskip
  -                                     \lineskip=\normlskip
  -                                     \parskip=\normpskip
  -                                     \vskip -\parskip
  +\envdef\cartouche{%
  +  \ifhmode\par\fi  % can't be in the midst of a paragraph.
  +  \startsavinginserts
  +  \lskip=\leftskip \rskip=\rightskip
  +  \leftskip=0pt\rightskip=0pt % we want these *outside*.
  +  \cartinner=\hsize \advance\cartinner by-\lskip
  +  \advance\cartinner by-\rskip
  +  \cartouter=\hsize
  +  \advance\cartouter by 18.4pt       % allow for 3pt kerns on either
  +                             % side, and for 6pt waste from
  +                             % each corner char, and rule thickness
  +  \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
  +  % Flag to tell @lisp, etc., not to narrow margin.
  +  \let\nonarrowing=\comment
  +  \vbox\bgroup
  +      \baselineskip=0pt\parskip=0pt\lineskip=0pt
  +      \carttop
  +      \hbox\bgroup
  +       \hskip\lskip
  +       \vrule\kern3pt
  +       \vbox\bgroup
  +           \kern3pt
  +           \hsize=\cartinner
  +           \baselineskip=\normbskip
  +           \lineskip=\normlskip
  +           \parskip=\normpskip
  +           \vskip -\parskip
  +           \comment % For explanation, see the end of \def\group.
  +}
   \def\Ecartouche{%
  -                             \endgroup
  -                             \kern3pt
  -                     \egroup
  -                     \kern3pt\vrule
  -                     \hskip\rskip
  -             \egroup
  -             \cartbot
  -     \egroup
  -\endgroup
  -}}
  +              \ifhmode\par\fi
  +           \kern3pt
  +       \egroup
  +       \kern3pt\vrule
  +       \hskip\rskip
  +      \egroup
  +      \cartbot
  +  \egroup
  +  \checkinserts
  +}
   
   
   % This macro is called at the beginning of all the @example variants,
   % inside a group.
   \def\nonfillstart{%
     \aboveenvbreak
  -  \inENV % This group ends at the end of the body
     \hfuzz = 12pt % Don't be fussy
     \sepspaces % Make spaces be word-separators rather than space tokens.
  -  \singlespace
     \let\par = \lisppar % don't ignore blank lines
     \obeylines % each line of input is a line of output
     \parskip = 0pt
  @@ -3197,96 +5016,99 @@
     \ifx\nonarrowing\relax
       \advance \leftskip by \lispnarrowing
       \exdentamount=\lispnarrowing
  -    \let\exdent=\nofillexdent
  -    \let\nonarrowing=\relax
     \fi
  +  \let\exdent=\nofillexdent
   }
   
  -% To ending an @example-like environment, we first end the paragraph
  -% (via \afterenvbreak's vertical glue), and then the group.  That way we
  -% keep the zero \parskip that the environments set -- \parskip glue
  -% will be inserted at the beginning of the next paragraph in the
  -% document, after the environment.
  -%
  -\def\nonfillfinish{\afterenvbreak\endgroup}%
  +% If you want all examples etc. small: @set dispenvsize small.
  +% If you want even small examples the full size: @set dispenvsize nosmall.
  +% This affects the following displayed environments:
  +%    @example, @display, @format, @lisp
  +%
  +\def\smallword{small}
  +\def\nosmallword{nosmall}
  +\let\SETdispenvsize\relax
  +\def\setnormaldispenv{%
  +  \ifx\SETdispenvsize\smallword
  +    \smallexamplefonts \rm
  +  \fi
  +}
  +\def\setsmalldispenv{%
  +  \ifx\SETdispenvsize\nosmallword
  +  \else
  +    \smallexamplefonts \rm
  +  \fi
  +}
   
  -% This macro is
  -\def\lisp{\begingroup
  -  \nonfillstart
  -  \let\Elisp = \nonfillfinish
  -  \tt
  -  \rawbackslash % have \ input char produce \ char from current font
  -  \gobble
  +% We often define two environments, @foo and @smallfoo.
  +% Let's do it by one command:
  +\def\makedispenv #1#2{
  +  \expandafter\envdef\csname#1\endcsname {\setnormaldispenv #2}
  +  \expandafter\envdef\csname small#1\endcsname {\setsmalldispenv #2}
  +  \expandafter\let\csname E#1\endcsname \afterenvbreak
  +  \expandafter\let\csname Esmall#1\endcsname \afterenvbreak
  +}
  +
  +% Define two synonyms:
  +\def\maketwodispenvs #1#2#3{
  +  \makedispenv{#1}{#3}
  +  \makedispenv{#2}{#3}
   }
   
  -% Define the \E... control sequence only if we are inside the
  -% environment, so the error checking in \end will work.
  +% @lisp: indented, narrowed, typewriter font; @example: same as @lisp.
   %
  -% We must call \lisp last in the definition, since it reads the
  -% return following the @example (or whatever) command.
  +% @smallexample and @smalllisp: use smaller fonts.
  +% Originally contributed by address@hidden
   %
  -\def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp}
  -\def\smallexample{\begingroup 
\def\Esmallexample{\nonfillfinish\endgroup}\lisp}
  -\def\smalllisp{\begingroup \def\Esmalllisp{\nonfillfinish\endgroup}\lisp}
  +\maketwodispenvs {lisp}{example}{%
  +  \nonfillstart
  +  \tt
  +  \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
  +  \gobble       % eat return
  +}
   
  -% @smallexample and @smalllisp.  This is not used unless the @smallbook
  -% command is given.  Originally contributed by address@hidden
  +% @display/@smalldisplay: same as @lisp except keep current font.
   %
  -\def\smalllispx{\begingroup
  +\makedispenv {display}{%
     \nonfillstart
  -  \let\Esmalllisp = \nonfillfinish
  -  \let\Esmallexample = \nonfillfinish
  -  %
  -  % Smaller interline space and fonts for small examples.
  -  \setleading{10pt}%
  -  \indexfonts \tt
  -  \rawbackslash % make \ output the \ character from the current font (tt)
     \gobble
   }
   
  -% This is @display; same as @lisp except use roman font.
  +% @format/@smallformat: same as @display except don't narrow margins.
   %
  -\def\display{\begingroup
  +\makedispenv{format}{%
  +  \let\nonarrowing = t%
     \nonfillstart
  -  \let\Edisplay = \nonfillfinish
     \gobble
   }
   
  -% This is @format; same as @display except don't narrow margins.
  -%
  -\def\format{\begingroup
  -  \let\nonarrowing = t
  +% @flushleft: same as @format, but doesn't obey \SETdispenvsize.
  +\envdef\flushleft{%
  +  \let\nonarrowing = t%
     \nonfillstart
  -  \let\Eformat = \nonfillfinish
     \gobble
   }
  +\let\Eflushleft = \afterenvbreak
   
  -% @flushleft (same as @format) and @flushright.
  +% @flushright.
   %
  -\def\flushleft{\begingroup
  -  \let\nonarrowing = t
  +\envdef\flushright{%
  +  \let\nonarrowing = t%
     \nonfillstart
  -  \let\Eflushleft = \nonfillfinish
  +  \advance\leftskip by 0pt plus 1fill
     \gobble
   }
  -\def\flushright{\begingroup
  -  \let\nonarrowing = t
  -  \nonfillstart
  -  \let\Eflushright = \nonfillfinish
  -  \advance\leftskip by 0pt plus 1fill
  -  \gobble}
  +\let\Eflushright = \afterenvbreak
  +
   
   % @quotation does normal linebreaking (hence we can't use \nonfillstart)
  -% and narrows the margins.
  +% and narrows the margins.  We keep \parskip nonzero in general, since
  +% we're doing normal filling.  So, when using \aboveenvbreak and
  +% \afterenvbreak, temporarily make \parskip 0.
   %
  -\def\quotation{%
  -  \begingroup\inENV %This group ends at the end of the @quotation body
  +\envdef\quotation{%
     {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
  -  \singlespace
     \parindent=0pt
  -  % We have retained a nonzero parskip for the environment, since we're
  -  % doing normal filling. So to avoid extra space below the environment...
  -  \def\Equotation{\parskip = 0pt \nonfillfinish}%
     %
     % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
     \ifx\nonarrowing\relax
  @@ -3295,748 +5117,1285 @@
       \exdentamount = \lispnarrowing
       \let\nonarrowing = \relax
     \fi
  +  \parsearg\quotationlabel
   }
   
  -\message{defuns,}
  -% Define formatter for defuns
  -% First, allow user to change definition object font (\df) internally
  -\def\setdeffont #1 {\csname DEF#1\endcsname}
  -
  -\newskip\defbodyindent \defbodyindent=.4in
  -\newskip\defargsindent \defargsindent=50pt
  -\newskip\deftypemargin \deftypemargin=12pt
  -\newskip\deflastargmargin \deflastargmargin=18pt
  -
  -\newcount\parencount
  -% define \functionparens, which makes ( and ) and & do special things.
  -% \functionparens affects the group it is contained in.
  -\def\activeparens{%
  -\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
  -\catcode`\[=\active \catcode`\]=\active}
  -
  -% Make control sequences which act like normal parenthesis chars.
  -\let\lparen = ( \let\rparen = )
  +% We have retained a nonzero parskip for the environment, since we're
  +% doing normal filling.
  +%
  +\def\Equotation{%
  +  \par
  +  \ifx\quotationauthor\undefined\else
  +    % indent a bit.
  +    \leftline{\kern 2\leftskip \sl ---\quotationauthor}%
  +  \fi
  +  {\parskip=0pt \afterenvbreak}%
  +}
   
  -{\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
  +% If we're given an argument, typeset it in bold with a colon after.
  +\def\quotationlabel#1{%
  +  \def\temp{#1}%
  +  \ifx\temp\empty \else
  +    {\bf #1: }%
  +  \fi
  +}
   
  -% Be sure that we always have a definition for `(', etc.  For example,
  -% if the fn name has parens in it, \boldbrax will not be in effect yet,
  -% so TeX would otherwise complain about undefined control sequence.
  -\global\let(=\lparen \global\let)=\rparen
  -\global\let[=\lbrack \global\let]=\rbrack
   
  -\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
  -\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
  -
  -% Definitions of (, ) and & used in args for functions.
  -% This is the definition of ( outside of all parentheses.
  -\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested %
  -\global\advance\parencount by 1 }
  -%
  -% This is the definition of ( when already inside a level of parens.
  -\gdef\opnested{\char`\(\global\advance\parencount by 1 }
  -%
  -\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
  -% also in that case restore the outer-level definition of (.
  -\ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
  -\global\advance \parencount by -1 }
  -% If we encounter &foo, then turn on ()-hacking afterwards
  -\gdef\amprm#1 {{\rm\&#1}\let(=\oprm \let)=\clrm\ }
  +% LaTeX-like @address@hidden verbatim and @verb{<char>...<char>}
  +% If we want to allow any <char> as delimiter,
  +% we need the curly braces so that makeinfo sees the @verb command, eg:
  +% address@hidden' would look like the '@verbx' command.  address@hidden
  +%
  +% [Knuth]: Donald Ervin Knuth, 1996.  The TeXbook.
  +%
  +% [Knuth] p.344; only we need to do the other characters Texinfo sets
  +% active too.  Otherwise, they get lost as the first character on a
  +% verbatim line.
  +\def\dospecials{%
  +  \do\ \do\\\do\{\do\}\do\$\do\&%
  +  \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~%
  +  \do\<\do\>\do\|address@hidden"%
  +}
  +%
  +% [Knuth] p. 380
  +\def\uncatcodespecials{%
  +  \def\do##1{\catcode`##1=\other}\dospecials}
   %
  -\gdef\normalparens{\boldbrax\let&=\ampnr}
  -} % End of definition inside \activeparens
  -%% These parens (in \boldbrax) actually are a little bolder than the
  -%% contained text.  This is especially needed for [ and ]
  -\def\opnr{{\sf\char`\(}} \def\clnr{{\sf\char`\)}} \def\ampnr{\&}
  -\def\lbrb{{\bf\char`\[}} \def\rbrb{{\bf\char`\]}}
  -
  -% First, defname, which formats the header line itself.
  -% #1 should be the function name.
  -% #2 should be the type of definition, such as "Function".
  -
  -\def\defname #1#2{%
  -% Get the values of \leftskip and \rightskip as they were
  -% outside the @def...
  -\dimen2=\leftskip
  -\advance\dimen2 by -\defbodyindent
  -\dimen3=\rightskip
  -\advance\dimen3 by -\defbodyindent
  -\noindent        %
  -\setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}%
  -\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
  -\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations
  -\parshape 2 0in \dimen0 \defargsindent \dimen1     %
  -% Now output arg 2 ("Function" or some such)
  -% ending at \deftypemargin from the right margin,
  -% but stuck inside a box of width 0 so it does not interfere with 
linebreaking
  -{% Adjust \hsize to exclude the ambient margins,
  -% so that \rightline will obey them.
  -\advance \hsize by -\dimen2 \advance \hsize by -\dimen3
  -\rlap{\rightline{{\rm #2}\hskip \deftypemargin}}}%
  -% Make all lines underfull and no complaints:
  -\tolerance=10000 \hbadness=10000
  -\advance\leftskip by -\defbodyindent
  -\exdentamount=\defbodyindent
  -{\df #1}\enskip        % Generate function name
  -}
  -
  -% Actually process the body of a definition
  -% #1 should be the terminating control sequence, such as \Edefun.
  -% #2 should be the "another name" control sequence, such as \defunx.
  -% #3 should be the control sequence that actually processes the header,
  -%    such as \defunheader.
  -
  -\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
  -\medbreak %
  -% Define the end token that this defining construct specifies
  -% so that it will exit this group.
  -\def#1{\endgraf\endgroup\medbreak}%
  -\def#2{\begingroup\obeylines\activeparens\spacesplit#3}%
  -\parindent=0in
  -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -\exdentamount=\defbodyindent
  -\begingroup %
  -\catcode 61=\active % 61 is `='
  -\obeylines\activeparens\spacesplit#3}
  -
  -\def\defmethparsebody #1#2#3#4 {\begingroup\inENV %
  -\medbreak %
  -% Define the end token that this defining construct specifies
  -% so that it will exit this group.
  -\def#1{\endgraf\endgroup\medbreak}%
  -\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
  -\parindent=0in
  -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -\exdentamount=\defbodyindent
  -\begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
  -
  -\def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
  -\medbreak %
  -% Define the end token that this defining construct specifies
  -% so that it will exit this group.
  -\def#1{\endgraf\endgroup\medbreak}%
  -\def#2##1 ##2 {\def#4{##1}%
  -\begingroup\obeylines\activeparens\spacesplit{#3{##2}}}%
  -\parindent=0in
  -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -\exdentamount=\defbodyindent
  -\begingroup\obeylines\activeparens\spacesplit{#3{#5}}}
  -
  -% These parsing functions are similar to the preceding ones
  -% except that they do not make parens into active characters.
  -% These are used for "variables" since they have no arguments.
  -
  -\def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
  -\medbreak %
  -% Define the end token that this defining construct specifies
  -% so that it will exit this group.
  -\def#1{\endgraf\endgroup\medbreak}%
  -\def#2{\begingroup\obeylines\spacesplit#3}%
  -\parindent=0in
  -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -\exdentamount=\defbodyindent
  -\begingroup %
  -\catcode 61=\active %
  -\obeylines\spacesplit#3}
  -
  -% This is used for \def{tp,vr}parsebody.  It could probably be used for
  -% some of the others, too, with some judicious conditionals.
  -% 
  -\def\parsebodycommon#1#2#3{%
  -  \begingroup\inENV %
  -  \medbreak %
  -  % Define the end token that this defining construct specifies
  -  % so that it will exit this group.
  -  \def#1{\endgraf\endgroup\medbreak}%
  -  \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%
  -  \parindent=0in
  -  \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -  \exdentamount=\defbodyindent
  -  \begingroup\obeylines
  +% [Knuth] pp. 380,381,391
  +% Disable Spanish ligatures ?` and !` of \tt font
  +\begingroup
  +  \catcode`\`=\active\gdef`{\relax\lq}
  +\endgroup
  +%
  +% Setup for the @verb command.
  +%
  +% Eight spaces for a tab
  +\begingroup
  +  \catcode`\^^I=\active
  +  \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }}
  +\endgroup
  +%
  +\def\setupverb{%
  +  \tt  % easiest (and conventionally used) font for verbatim
  +  \def\par{\leavevmode\endgraf}%
  +  \catcode`\`=\active
  +  \tabeightspaces
  +  % Respect line breaks,
  +  % print special symbols as themselves, and
  +  % make each space count
  +  % must do in this order:
  +  \obeylines \uncatcodespecials \sepspaces
   }
   
  -\def\defvrparsebody#1#2#3#4 {%
  -  \parsebodycommon{#1}{#2}{#3}%
  -  \spacesplit{#3{#4}}%
  +% Setup for the @verbatim environment
  +%
  +% Real tab expansion
  +\newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
  +%
  +\def\starttabbox{\setbox0=\hbox\bgroup}
  +\begingroup
  +  \catcode`\^^I=\active
  +  \gdef\tabexpand{%
  +    \catcode`\^^I=\active
  +    \def^^I{\leavevmode\egroup
  +      \dimen0=\wd0 % the width so far, or since the previous tab
  +      \divide\dimen0 by\tabw
  +      \multiply\dimen0 by\tabw % compute previous multiple of \tabw
  +      \advance\dimen0 by\tabw  % advance to next multiple of \tabw
  +      \wd0=\dimen0 \box0 \starttabbox
  +    }%
  +  }
  +\endgroup
  +\def\setupverbatim{%
  +  \nonfillstart
  +  \advance\leftskip by -\defbodyindent
  +  % Easiest (and conventionally used) font for verbatim
  +  \tt
  +  \def\par{\leavevmode\egroup\box0\endgraf}%
  +  \catcode`\`=\active
  +  \tabexpand
  +  % Respect line breaks,
  +  % print special symbols as themselves, and
  +  % make each space count
  +  % must do in this order:
  +  \obeylines \uncatcodespecials \sepspaces
  +  \everypar{\starttabbox}%
  +}
  +
  +% Do the @verb magic: verbatim text is quoted by unique
  +% delimiter characters.  Before first delimiter expect a
  +% right brace, after last delimiter expect closing brace:
  +%
  +%    \def\doverb'{'<char>#1<char>'}'{#1}
  +%
  +% [Knuth] p. 382; only eat outer {}
  +\begingroup
  +  \catcode`[=1\catcode`]=2\catcode`\{=\other\catcode`\}=\other
  +  \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next]
  +\endgroup
  +%
  +\def\verb{\begingroup\setupverb\doverb}
  +%
  +%
  +% Do the @verbatim magic: define the macro \doverbatim so that
  +% the (first) argument ends when '@end verbatim' is reached, ie:
  +%
  +%     address@hidden verbatim{#1}
  +%
  +% For Texinfo it's a lot easier than for LaTeX,
  +% because texinfo's \verbatim doesn't stop at '\end{verbatim}':
  +% we need not redefine '\', '{' and '}'.
  +%
  +% Inspired by LaTeX's verbatim command set [latex.ltx]
  +%
  +\begingroup
  +  \catcode`\ =\active
  +  \obeylines %
  +  % ignore everything up to the first ^^M, that's the newline at the end
  +  % of the @verbatim input line itself.  Otherwise we get an extra blank
  +  % line in the output.
  +  address@hidden verbatim{#2\noexpand\end\gobble verbatim}%
  +  % We really want {...\end verbatim} in the body of the macro, but
  +  % without the active space; thus we have to use \xdef and \gobble.
  +\endgroup
  +%
  +\envdef\verbatim{%
  +    \setupverbatim\doverbatim
   }
  +\let\Everbatim = \afterenvbreak
  +
   
  -% This loses on address@hidden {Data Type} {struct termios}' -- it thinks the
  -% type is just `struct', because we lose the braces in `{struct
  -% termios}' when \spacesplit reads its undelimited argument.  Sigh.
  -% \let\deftpparsebody=\defvrparsebody
  +% @verbatiminclude FILE - insert text of file in verbatim environment.
   %
  -% So, to get around this, we put \empty in with the type name.  That
  -% way, TeX won't find exactly `{...}' as an undelimited argument, and
  -% won't strip off the braces.
  +\def\verbatiminclude{\parseargusing\filenamecatcodes\doverbatiminclude}
   %
  -\def\deftpparsebody #1#2#3#4 {%
  -  \parsebodycommon{#1}{#2}{#3}%
  -  \spacesplit{\parsetpheaderline{#3{#4}}}\empty
  +\def\doverbatiminclude#1{%
  +  {%
  +    \makevalueexpandable
  +    \setupverbatim
  +    \input #1
  +    \afterenvbreak
  +  }%
   }
   
  -% Fine, but then we have to eventually remove the \empty *and* the
  -% braces (if any).  That's what this does, putting the result in \tptemp.
  -% 
  -\def\removeemptybraces\empty#1\relax{\def\tptemp{#1}}%
  -
  -% After \spacesplit has done its work, this is called -- #1 is the final
  -% thing to call, #2 the type name (which starts with \empty), and #3
  -% (which might be empty) the arguments.
  -% 
  -\def\parsetpheaderline#1#2#3{%
  -  \removeemptybraces#2\relax
  -  #1{\tptemp}{#3}%
  -}%
  +% @copying ... @end copying.
  +% Save the text away for @insertcopying later.
  +%
  +% We save the uninterpreted tokens, rather than creating a box.
  +% Saving the text in a box would be much easier, but then all the
  +% typesetting commands (@smallbook, font changes, etc.) have to be done
  +% beforehand -- and a) we want @copying to be done first in the source
  +% file; b) letting users define the frontmatter in as flexible order as
  +% possible is very desirable.
  +%
  +\def\copying{\checkenv{}\begingroup\scanargctxt\docopying}
  address@hidden copying{\endgroup\def\copyingtext{#1}}
  +%
  +\def\insertcopying{%
  +  \begingroup
  +    \parindent = 0pt  % paragraph indentation looks wrong on title page
  +    \scanexp\copyingtext
  +  \endgroup
  +}
   
  -\def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %
  -\medbreak %
  -% Define the end token that this defining construct specifies
  -% so that it will exit this group.
  -\def#1{\endgraf\endgroup\medbreak}%
  -\def#2##1 ##2 {\def#4{##1}%
  -\begingroup\obeylines\spacesplit{#3{##2}}}%
  -\parindent=0in
  -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
  -\exdentamount=\defbodyindent
  -\begingroup\obeylines\spacesplit{#3{#5}}}
  +\message{defuns,}
  +% @defun etc.
   
  -% Split up #2 at the first space token.
  -% call #1 with two arguments:
  -%  the first is all of #2 before the space token,
  -%  the second is all of #2 after that space token.
  -% If #2 contains no space token, all of it is passed as the first arg
  -% and the second is passed as empty.
  +\newskip\defbodyindent \defbodyindent=.4in
  +\newskip\defargsindent \defargsindent=50pt
  +\newskip\deflastargmargin \deflastargmargin=18pt
   
  -{\obeylines
  -\gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}%
  -\long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{%
  -\ifx\relax #3%
  -#1{#2}{}\else #1{#2}{#3#4}\fi}}
  +% Start the processing of @deffn:
  +\def\startdefun{%
  +  \ifnum\lastpenalty<10000
  +    \medbreak
  +  \else
  +    % If there are two @def commands in a row, we'll have a \nobreak,
  +    % which is there to keep the function description together with its
  +    % header.  But if there's nothing but headers, we need to allow a
  +    % break somewhere.  Check specifically for penalty 10002, inserted
  +    % by \defargscommonending, instead of 10000, since the sectioning
  +    % commands also insert a nobreak penalty, and we don't want to allow
  +    % a break between a section heading and a defun.
  +    % 
  +    \ifnum\lastpenalty=10002 \penalty2000 \fi
  +    %
  +    % Similarly, after a section heading, do not allow a break.
  +    % But do insert the glue.
  +    \medskip  % preceded by discardable penalty, so not a breakpoint
  +  \fi
  +  %
  +  \parindent=0in
  +  \advance\leftskip by \defbodyindent
  +  \exdentamount=\defbodyindent
  +}
   
  -% So much for the things common to all kinds of definitions.
  +\def\dodefunx#1{%
  +  % First, check whether we are in the right environment:
  +  \checkenv#1%
  +  %
  +  % As above, allow line break if we have multiple x headers in a row.
  +  % It's not a great place, though.
  +  \ifnum\lastpenalty=10002 \penalty3000 \fi
  +  %
  +  % And now, it's time to reuse the body of the original defun:
  +  \expandafter\gobbledefun#1%
  +}
  +\def\gobbledefun#1\startdefun{}
   
  -% Define @defun.
  +% \printdefunline \deffnheader{text}
  +%
  +\def\printdefunline#1#2{%
  +  \begingroup
  +    % call \deffnheader:
  +    #1#2 \endheader
  +    % common ending:
  +    \interlinepenalty = 10000
  +    \advance\rightskip by 0pt plus 1fil
  +    \endgraf
  +    \nobreak\vskip -\parskip
  +    \penalty 10002  % signal to \startdefun and \dodefunx
  +    % Some of the @defun-type tags do not enable magic parentheses,
  +    % rendering the following check redundant.  But we don't optimize.
  +    \checkparencounts
  +  \endgroup
  +}
   
  -% First, define the processing that is wanted for arguments of \defun
  -% Use this to expand the args and terminate the paragraph they make up
  +\def\Edefun{\endgraf\medbreak}
   
  -\def\defunargs #1{\functionparens \sl
  -% Expand, preventing hyphenation at `-' chars.
  -% Note that groups don't affect changes in \hyphenchar.
  -\hyphenchar\tensl=0
  -#1%
  -\hyphenchar\tensl=45
  -\ifnum\parencount=0 \else \errmessage{unbalanced parens in @def 
arguments}\fi%
  -\interlinepenalty=10000
  -\advance\rightskip by 0pt plus 1fil
  -\endgraf\penalty 10000\vskip -\parskip\penalty 10000%
  +% \makedefun{deffn} creates \deffn, \deffnx and \Edeffn;
  +% the only thing remainnig is to define \deffnheader.
  +%
  +\def\makedefun#1{%
  +  \expandafter\let\csname E#1\endcsname = \Edefun
  +  \edef\temp{\noexpand\domakedefun
  +    \makecsname{#1}\makecsname{#1x}\makecsname{#1header}}%
  +  \temp
   }
   
  -\def\deftypefunargs #1{%
  -% Expand, preventing hyphenation at `-' chars.
  -% Note that groups don't affect changes in \hyphenchar.
  -\functionparens
  -\tclose{#1}% avoid \code because of side effects on active chars
  -\interlinepenalty=10000
  -\advance\rightskip by 0pt plus 1fil
  -\endgraf\penalty 10000\vskip -\parskip\penalty 10000%
  +% \domakedefun \deffn \deffnx \deffnheader
  +%
  +% Define \deffn and \deffnx, without parameters.
  +% \deffnheader has to be defined explicitly.
  +%
  +\def\domakedefun#1#2#3{%
  +  \envdef#1{%
  +    \startdefun
  +    \parseargusing\activeparens{\printdefunline#3}%
  +  }%
  +  \def#2{\dodefunx#1}%
  +  \def#3%
   }
   
  -% Do complete processing of one @defun or @defunx line already parsed.
  -
  -% @deffn Command forward-char nchars
  +%%% Untyped functions:
   
  -\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader}
  -
  -\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}%
  -\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  -}
  +% @deffn category name args
  +\makedefun{deffn}{\deffngeneral{}}
   
  -% @defun == @deffn Function
  +% @deffn category class name args
  +\makedefun{defop}#1 {\defopon{#1\ \putwordon}}
   
  -\def\defun{\defparsebody\Edefun\defunx\defunheader}
  +% \defopon {category on}class name args
  +\def\defopon#1#2 {\deffngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} }
   
  -\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
  -\begingroup\defname {#1}{Function}%
  -\defunargs {#2}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  +% \deffngeneral {subind}category name args
  +%
  +\def\deffngeneral#1#2 #3 #4\endheader{%
  +  % Remember that \dosubind{fn}{foo}{} is equivalent to \doind{fn}{foo}.
  +  \dosubind{fn}{\code{#3}}{#1}%
  +  \defname{#2}{}{#3}\magicamp\defunargs{#4\unskip}%
   }
   
  -% @deftypefun int foobar (int @var{foo}, float @var{bar})
  +%%% Typed functions:
   
  -\def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader}
  +% @deftypefn category type name args
  +\makedefun{deftypefn}{\deftypefngeneral{}}
   
  -% #1 is the data type.  #2 is the name and args.
  -\def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
  -% #1 is the data type, #2 the name, #3 the args.
  -\def\deftypefunheaderx #1#2 #3\relax{%
  -\doind {fn}{\code{#2}}% Make entry in function index
  -\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Function}%
  -\deftypefunargs {#3}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  -}
  +% @deftypeop category class type name args
  +\makedefun{deftypeop}#1 {\deftypeopon{#1\ \putwordon}}
   
  -% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
  +% \deftypeopon {category on}class type name args
  +\def\deftypeopon#1#2 {\deftypefngeneral{\putwordon\ \code{#2}}{#1\ 
\code{#2}} }
   
  -\def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
  +% \deftypefngeneral {subind}category type name args
  +%
  +\def\deftypefngeneral#1#2 #3 #4 #5\endheader{%
  +  \dosubind{fn}{\code{#4}}{#1}%
  +  \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
  +}
   
  -% \defheaderxcond#1\relax$$$
  -% puts #1 in @code, followed by a space, but does nothing if #1 is null.
  -\def\defheaderxcond#1#2$$${\ifx#1\relax\else\code{#1#2} \fi}
  +%%% Typed variables:
   
  -% #1 is the classification.  #2 is the data type.  #3 is the name and args.
  -\def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
  -% #1 is the classification, #2 the data type, #3 the name, #4 the args.
  -\def\deftypefnheaderx #1#2#3 #4\relax{%
  -\doind {fn}{\code{#3}}% Make entry in function index
  -\begingroup
  -\normalparens % notably, turn off `&' magic, which prevents
  -%               at least some C++ text from working
  -\defname {\defheaderxcond#2\relax$$$#3}{#1}%
  -\deftypefunargs {#4}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  -}
  +% @deftypevr category type var args
  +\makedefun{deftypevr}{\deftypecvgeneral{}}
   
  -% @defmac == @deffn Macro
  +% @deftypecv category class type var args
  +\makedefun{deftypecv}#1 {\deftypecvof{#1\ \putwordof}}
   
  -\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader}
  +% \deftypecvof {category of}class type var args
  +\def\deftypecvof#1#2 {\deftypecvgeneral{\putwordof\ \code{#2}}{#1\ 
\code{#2}} }
   
  -\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
  -\begingroup\defname {#1}{Macro}%
  -\defunargs {#2}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  +% \deftypecvgeneral {subind}category type var args
  +%
  +\def\deftypecvgeneral#1#2 #3 #4 #5\endheader{%
  +  \dosubind{vr}{\code{#4}}{#1}%
  +  \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
   }
   
  -% @defspec == @deffn Special Form
  +%%% Untyped variables:
   
  -\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader}
  +% @defvr category var args
  +\makedefun{defvr}#1 {\deftypevrheader{#1} {} }
   
  -\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
  -\begingroup\defname {#1}{Special Form}%
  -\defunargs {#2}\endgroup %
  -\catcode 61=\other % Turn off change made in \defparsebody
  -}
  +% @defcv category class var args
  +\makedefun{defcv}#1 {\defcvof{#1\ \putwordof}}
   
  -% This definition is run if you use @defunx
  -% anywhere other than immediately after a @defun or @defunx.
  +% \defcvof {category of}class var args
  +\def\defcvof#1#2 {\deftypecvof{#1}#2 {} }
   
  -\def\deffnx #1 address@hidden in invalid context}}
  -\def\defunx #1 address@hidden in invalid context}}
  -\def\defmacx #1 address@hidden in invalid context}}
  -\def\defspecx #1 address@hidden in invalid context}}
  -\def\deftypefnx #1 address@hidden in invalid context}}
  -\def\deftypeunx #1 address@hidden in invalid context}}
  +%%% Type:
  +% @deftp category name args
  +\makedefun{deftp}#1 #2 #3\endheader{%
  +  \doind{tp}{\code{#2}}%
  +  \defname{#1}{}{#2}\defunargs{#3\unskip}%
  +}
   
  -% @defmethod, and so on
  +% Remaining @defun-like shortcuts:
  +\makedefun{defun}{\deffnheader{\putwordDeffunc} }
  +\makedefun{defmac}{\deffnheader{\putwordDefmac} }
  +\makedefun{defspec}{\deffnheader{\putwordDefspec} }
  +\makedefun{deftypefun}{\deftypefnheader{\putwordDeffunc} }
  +\makedefun{defvar}{\defvrheader{\putwordDefvar} }
  +\makedefun{defopt}{\defvrheader{\putwordDefopt} }
  +\makedefun{deftypevar}{\deftypevrheader{\putwordDefvar} }
  +\makedefun{defmethod}{\defopon\putwordMethodon}
  +\makedefun{deftypemethod}{\deftypeopon\putwordMethodon}
  +\makedefun{defivar}{\defcvof\putwordInstanceVariableof}
  +\makedefun{deftypeivar}{\deftypecvof\putwordInstanceVariableof}
   
  -% @defop {Funny Method} foo-class frobnicate argument
  +% \defname, which formats the name of the @def (not the args).
  +% #1 is the category, such as "Function".
  +% #2 is the return type, if any.
  +% #3 is the function name.
  +%
  +% We are followed by (but not passed) the arguments, if any.
  +%
  +\def\defname#1#2#3{%
  +  % Get the values of \leftskip and \rightskip as they were outside the 
@def...
  +  \advance\leftskip by -\defbodyindent
  +  %
  +  % How we'll format the type name.  Putting it in brackets helps
  +  % distinguish it from the body text that may end up on the next line
  +  % just below it.
  +  \def\temp{#1}%
  +  \setbox0=\hbox{\kern\deflastargmargin \ifx\temp\empty\else [\rm\temp]\fi}
  +  %
  +  % Figure out line sizes for the paragraph shape.
  +  % The first line needs space for \box0; but if \rightskip is nonzero,
  +  % we need only space for the part of \box0 which exceeds it:
  +  \dimen0=\hsize  \advance\dimen0 by -\wd0  \advance\dimen0 by \rightskip
  +  % The continuations:
  +  \dimen2=\hsize  \advance\dimen2 by -\defargsindent
  +  % (plain.tex says that \dimen1 should be used only as global.)
  +  \parshape 2 0in \dimen0 \defargsindent \dimen2
  +  %
  +  % Put the type name to the right margin.
  +  \noindent
  +  \hbox to 0pt{%
  +    \hfil\box0 \kern-\hsize
  +    % \hsize has to be shortened this way:
  +    \kern\leftskip
  +    % Intentionally do not respect \rightskip, since we need the space.
  +  }%
  +  %
  +  % Allow all lines to be underfull without complaint:
  +  \tolerance=10000 \hbadness=10000
  +  \exdentamount=\defbodyindent
  +  {%
  +    % defun fonts. We use typewriter by default (used to be bold) because:
  +    % . we're printing identifiers, they should be in tt in principle.
  +    % . in languages with many accents, such as Czech or French, it's
  +    %   common to leave accents off identifiers.  The result looks ok in
  +    %   tt, but exceedingly strange in rm.
  +    % . we don't want -- and --- to be treated as ligatures.
  +    % . this still does not fix the ?` and !` ligatures, but so far no
  +    %   one has made identifiers using them :).
  +    \df \tt
  +    \def\temp{#2}% return value type
  +    \ifx\temp\empty\else \tclose{\temp} \fi
  +    #3% output function name
  +  }%
  +  {\rm\enskip}% hskip 0.5 em of \tenrm
  +  %
  +  \boldbrax
  +  % arguments will be output next, if any.
  +}
   
  -\def\defop #1 {\def\defoptype{#1}%
  -\defopparsebody\Edefop\defopx\defopheader\defoptype}
  +% Print arguments in slanted roman (not ttsl), inconsistently with using
  +% tt for the name.  This is because literal text is sometimes needed in
  +% the argument list (groff manual), and ttsl and tt are not very
  +% distinguishable.  Prevent hyphenation at `-' chars.
  +%
  +\def\defunargs#1{%
  +  % use sl by default (not ttsl),
  +  % tt for the names.
  +  \df \sl \hyphenchar\font=0
  +  %
  +  % On the other hand, if an argument has two dashes (for instance), we
  +  % want a way to get ttsl.  Let's try @var for that.
  +  \let\var=\ttslanted
  +  #1%
  +  \sl\hyphenchar\font=45
  +}
   
  -\def\defopheader #1#2#3{%
  -\dosubind {fn}{\code{#2}}{on #1}% Make entry in function index
  -\begingroup\defname {#2}{\defoptype{} on #1}%
  -\defunargs {#3}\endgroup %
  +% We want ()&[] to print specially on the defun line.
  +%
  +\def\activeparens{%
  +  \catcode`\(=\active \catcode`\)=\active
  +  \catcode`\[=\active \catcode`\]=\active
  +  \catcode`\&=\active
   }
   
  -% @defmethod == @defop Method
  +% Make control sequences which act like normal parenthesis chars.
  +\let\lparen = ( \let\rparen = )
   
  -\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader}
  +% Be sure that we always have a definition for `(', etc.  For example,
  +% if the fn name has parens in it, \boldbrax will not be in effect yet,
  +% so TeX would otherwise complain about undefined control sequence.
  +{
  +  \activeparens
  +  \global\let(=\lparen \global\let)=\rparen
  +  \global\let[=\lbrack \global\let]=\rbrack
  +  \global\let& = \&
   
  -\def\defmethodheader #1#2#3{%
  -\dosubind {fn}{\code{#2}}{on #1}% entry in function index
  -\begingroup\defname {#2}{Method on #1}%
  -\defunargs {#3}\endgroup %
  +  \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
  +  \gdef\magicamp{\let&=\amprm}
   }
   
  -% @defcv {Class Option} foo-class foo-flag
  +\newcount\parencount
   
  -\def\defcv #1 {\def\defcvtype{#1}%
  -\defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype}
  +% If we encounter &foo, then turn on ()-hacking afterwards
  +\newif\ifampseen
  +\def\amprm#1 {\ampseentrue{\bf\&#1 }}
   
  -\def\defcvarheader #1#2#3{%
  -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
  -\begingroup\defname {#2}{\defcvtype{} of #1}%
  -\defvarargs {#3}\endgroup %
  +\def\parenfont{%
  +  \ifampseen
  +    % At the first level, print parens in roman,
  +    % otherwise use the default font.
  +    \ifnum \parencount=1 \rm \fi
  +  \else
  +    % The \sf parens (in \boldbrax) actually are a little bolder than
  +    % the contained text.  This is especially needed for [ and ] .
  +    \sf
  +  \fi
   }
  +\def\infirstlevel#1{%
  +  \ifampseen
  +    \ifnum\parencount=1
  +      #1%
  +    \fi
  +  \fi
  +}
  +\def\bfafterword#1 {#1 \bf}
   
  -% @defivar == @defcv {Instance Variable}
  -
  -\def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader}
  +\def\opnr{%
  +  \global\advance\parencount by 1
  +  {\parenfont(}%
  +  \infirstlevel \bfafterword
  +}
  +\def\clnr{%
  +  {\parenfont)}%
  +  \infirstlevel \sl
  +  \global\advance\parencount by -1
  +}
   
  -\def\defivarheader #1#2#3{%
  -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
  -\begingroup\defname {#2}{Instance Variable of #1}%
  -\defvarargs {#3}\endgroup %
  +\newcount\brackcount
  +\def\lbrb{%
  +  \global\advance\brackcount by 1
  +  {\bf[}%
  +}
  +\def\rbrb{%
  +  {\bf]}%
  +  \global\advance\brackcount by -1
   }
   
  -% These definitions are run if you use @defmethodx, etc.,
  -% anywhere other than immediately after a @defmethod, etc.
  +\def\checkparencounts{%
  +  \ifnum\parencount=0 \else \badparencount \fi
  +  \ifnum\brackcount=0 \else \badbrackcount \fi
  +}
  +\def\badparencount{%
  +  \errmessage{Unbalanced parentheses in @def}%
  +  \global\parencount=0
  +}
  +\def\badbrackcount{%
  +  \errmessage{Unbalanced square braces in @def}%
  +  \global\brackcount=0
  +}
   
  -\def\defopx #1 address@hidden in invalid context}}
  -\def\defmethodx #1 address@hidden in invalid context}}
  -\def\defcvx #1 address@hidden in invalid context}}
  -\def\defivarx #1 address@hidden in invalid context}}
   
  -% Now @defvar
  +\message{macros,}
  +% @macro.
   
  -% First, define the processing that is wanted for arguments of @defvar.
  -% This is actually simple: just print them in roman.
  -% This must expand the args and terminate the paragraph they make up
  -\def\defvarargs #1{\normalparens #1%
  -\interlinepenalty=10000
  -\endgraf\penalty 10000\vskip -\parskip\penalty 10000}
  +% To do this right we need a feature of e-TeX, \scantokens,
  +% which we arrange to emulate with a temporary file in ordinary TeX.
  +\ifx\eTeXversion\undefined
  +  \newwrite\macscribble
  +  \def\scantokens#1{%
  +    \toks0={#1}%
  +    \immediate\openout\macscribble=\jobname.tmp
  +    \immediate\write\macscribble{\the\toks0}%
  +    \immediate\closeout\macscribble
  +    \input \jobname.tmp
  +  }
  +\fi
   
  -% @defvr Counter foo-count
  +\def\scanmacro#1{%
  +  \begingroup
  +    \newlinechar`\^^M
  +    \let\xeatspaces\eatspaces
  +    % Undo catcode changes of \startcontents and \doprintindex
  +    % When called from @insertcopying or (short)caption, we need active
  +    % backslash to get it printed correctly.  Previously, we had
  +    % \catcode`\\=\other instead.  We'll see whether a problem appears
  +    % with macro expansion.                          --kasal, 19aug04
  +    address@hidden \catcode`\\=\active \escapechar=`\@
  +    % ... and \example
  +    \spaceisspace
  +    %
  +    % Append \endinput to make sure that TeX does not see the ending newline.
  +    %
  +    % I've verified that it is necessary both for e-TeX and for ordinary TeX
  +    %                                                        --kasal, 29nov03
  +    \scantokens{#1\endinput}%
  +  \endgroup
  +}
   
  -\def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader}
  +\def\scanexp#1{%
  +  \edef\temp{\noexpand\scanmacro{#1}}%
  +  \temp
  +}
   
  -\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}%
  -\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup}
  +\newcount\paramno   % Count of parameters
  +\newtoks\macname    % Macro name
  +\newif\ifrecursive  % Is it recursive?
  +\def\macrolist{}    % List of all defined macros in the form
  +                    % \do\macro1\do\macro2...
  +
  +% Utility routines.
  +% This does \let #1 = #2, with \csnames; that is,
  +%   \let \csname#1\endcsname = \csname#2\endcsname
  +% (except of course we have to play expansion games).
  +% 
  +\def\cslet#1#2{%
  +  \expandafter\let
  +  \csname#1\expandafter\endcsname
  +  \csname#2\endcsname
  +}
   
  -% @defvar == @defvr Variable
  +% Trim leading and trailing spaces off a string.
  +% Concepts from aro-bend problem 15 (see CTAN).
  address@hidden
  +\gdef\eatspaces address@hidden }}
  +\gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
  +\gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
  +\def\unbrace#1{#1}
  +\unbrace{\gdef\trim@@@ #1 } address@hidden
  +}
  +
  +% Trim a single trailing ^^M off a string.
  +{\catcode`\^^M=\other \catcode`\Q=3%
  +\gdef\eatcr #1{\eatcra #1Q^^MQ}%
  +\gdef\eatcra#1^^MQ{\eatcrb#1Q}%
  +\gdef\eatcrb#1Q#2Q{#1}%
  +}
  +
  +% Macro bodies are absorbed as an argument in a context where
  +% all characters are catcode 10, 11 or 12, except \ which is active
  +% (as in normal texinfo). It is necessary to change the definition of \.
  +
  +% It's necessary to have hard CRs when the macro is executed. This is
  +% done by  making ^^M (\endlinechar) catcode 12 when reading the macro
  +% body, and then making it the \newlinechar in \scanmacro.
  +
  +\def\scanctxt{%
  +  \catcode`\"=\other
  +  \catcode`\+=\other
  +  \catcode`\<=\other
  +  \catcode`\>=\other
  +  address@hidden
  +  \catcode`\^=\other
  +  \catcode`\_=\other
  +  \catcode`\|=\other
  +  \catcode`\~=\other
  +}
   
  -\def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader}
  +\def\scanargctxt{%
  +  \scanctxt
  +  \catcode`\\=\other
  +  \catcode`\^^M=\other
  +}
   
  -\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
  -\begingroup\defname {#1}{Variable}%
  -\defvarargs {#2}\endgroup %
  +\def\macrobodyctxt{%
  +  \scanctxt
  +  \catcode`\{=\other
  +  \catcode`\}=\other
  +  \catcode`\^^M=\other
  +  \usembodybackslash
   }
   
  -% @defopt == @defvr {User Option}
  +\def\macroargctxt{%
  +  \scanctxt
  +  \catcode`\\=\other
  +}
   
  -\def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader}
  +% \mbodybackslash is the definition of \ in @macro bodies.
  +% It maps \foo\ => \csname macarg.foo\endcsname => #N
  +% where N is the macro parameter number.
  +% We define \csname macarg.\endcsname to be \realbackslash, so
  +% \\ in macro replacement text gets you a backslash.
   
  -\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
  -\begingroup\defname {#1}{User Option}%
  -\defvarargs {#2}\endgroup %
  address@hidden @address@hidden@active
  + @address@hidden@address@hidden
  + @address@hidden@csname address@hidden
   }
  +\expandafter\def\csname macarg.\endcsname{\realbackslash}
   
  -% @deftypevar int foobar
  -
  -\def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader}
  +\def\macro{\recursivefalse\parsearg\macroxxx}
  +\def\rmacro{\recursivetrue\parsearg\macroxxx}
   
  -% #1 is the data type.  #2 is the name.
  -\def\deftypevarheader #1#2{%
  -\doind {vr}{\code{#2}}% Make entry in variables index
  -\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Variable}%
  -\interlinepenalty=10000
  -\endgraf\penalty 10000\vskip -\parskip\penalty 10000
  -\endgroup}
  +\def\macroxxx#1{%
  +  \getargs{#1}%           now \macname is the macname and \argl the arglist
  +  \ifx\argl\empty       % no arguments
  +     \paramno=0%
  +  \else
  +     \expandafter\parsemargdef \argl;%
  +  \fi
  +  \if1\csname ismacro.\the\macname\endcsname
  +     \message{Warning: redefining \the\macname}%
  +  \else
  +     \expandafter\ifx\csname \the\macname\endcsname \relax
  +     \else \errmessage{Macro name \the\macname\space already defined}\fi
  +     \global\cslet{macsave.\the\macname}{\the\macname}%
  +     \global\expandafter\let\csname ismacro.\the\macname\endcsname=1%
  +     % Add the macroname to \macrolist
  +     \toks0 = \expandafter{\macrolist\do}%
  +     \xdef\macrolist{\the\toks0
  +       \expandafter\noexpand\csname\the\macname\endcsname}%
  +  \fi
  +  \begingroup \macrobodyctxt
  +  \ifrecursive \expandafter\parsermacbody
  +  \else \expandafter\parsemacbody
  +  \fi}
  +
  +\parseargdef\unmacro{%
  +  \if1\csname ismacro.#1\endcsname
  +    \global\cslet{#1}{macsave.#1}%
  +    \global\expandafter\let \csname ismacro.#1\endcsname=0%
  +    % Remove the macro name from \macrolist:
  +    \begingroup
  +      \expandafter\let\csname#1\endcsname \relax
  +      \let\do\unmacrodo
  +      \xdef\macrolist{\macrolist}%
  +    \endgroup
  +  \else
  +    \errmessage{Macro #1 not defined}%
  +  \fi
  +}
   
  -% @deftypevr {Global Flag} int enable
  +% Called by \do from \dounmacro on each macro.  The idea is to omit any
  +% macro definitions that have been changed to \relax.
  +%
  +\def\unmacrodo#1{%
  +  \ifx#1\relax
  +    % remove this
  +  \else
  +    \noexpand\do \noexpand #1%
  +  \fi
  +}
   
  -\def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
  +% This makes use of the obscure feature that if the last token of a
  +% <parameter list> is #, then the preceding argument is delimited by
  +% an opening brace, and that opening brace is not consumed.
  +\def\getargs#1{\getargsxxx#1{}}
  +\def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
  +\def\getmacname #1 #2\relax{\macname={#1}}
  +\def\getmacargs#1{\def\argl{#1}}
  +
  +% Parse the optional {params} list.  Set up \paramno and \paramlist
  +% so \defmacro knows what to do.  Define \macarg.blah for each blah
  +% in the params list, to be ##N where N is the position in that list.
  +% That gets used by \mbodybackslash (above).
  +
  +% We need to get `macro parameter char #' into several definitions.
  +% The technique used is stolen from LaTeX:  let \hash be something
  +% unexpandable, insert that wherever you need a #, and then redefine
  +% it to # just before using the token list produced.
  +%
  +% The same technique is used to protect \eatspaces till just before
  +% the macro is used.
  +
  +\def\parsemargdef#1;{\paramno=0\def\paramlist{}%
  +        \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
  +\def\parsemargdefxxx#1,{%
  +  \if#1;\let\next=\relax
  +  \else \let\next=\parsemargdefxxx
  +    \advance\paramno by 1%
  +    \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
  +        {\xeatspaces{\hash\the\paramno}}%
  +    \edef\paramlist{\paramlist\hash\the\paramno,}%
  +  \fi\next}
  +
  +% These two commands read recursive and nonrecursive macro bodies.
  +% (They're different since rec and nonrec macros end differently.)
  +
  address@hidden macro%
  +{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
  address@hidden rmacro%
  +{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
  +
  +% This defines the macro itself. There are six cases: recursive and
  +% nonrecursive macros of zero, one, and many arguments.
  +% Much magic with \expandafter here.
  +% \xdef is used so that macro definitions will survive the file
  +% they're defined in; @include reads the file inside a group.
  +\def\defmacro{%
  +  \let\hash=##% convert placeholders to macro parameter chars
  +  \ifrecursive
  +    \ifcase\paramno
  +    % 0
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +        \noexpand\scanmacro{\temp}}%
  +    \or % 1
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +         \bgroup\noexpand\macroargctxt
  +         \noexpand\braceorline
  +         \expandafter\noexpand\csname\the\macname xxx\endcsname}%
  +      \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
  +         \egroup\noexpand\scanmacro{\temp}}%
  +    \else % many
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +         \bgroup\noexpand\macroargctxt
  +         \noexpand\csname\the\macname xx\endcsname}%
  +      \expandafter\xdef\csname\the\macname xx\endcsname##1{%
  +          \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
  +      \expandafter\expandafter
  +      \expandafter\xdef
  +      \expandafter\expandafter
  +        \csname\the\macname xxx\endcsname
  +          \paramlist{\egroup\noexpand\scanmacro{\temp}}%
  +    \fi
  +  \else
  +    \ifcase\paramno
  +    % 0
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +        \noexpand\norecurse{\the\macname}%
  +        \noexpand\scanmacro{\temp}\egroup}%
  +    \or % 1
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +         \bgroup\noexpand\macroargctxt
  +         \noexpand\braceorline
  +         \expandafter\noexpand\csname\the\macname xxx\endcsname}%
  +      \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
  +        \egroup
  +        \noexpand\norecurse{\the\macname}%
  +        \noexpand\scanmacro{\temp}\egroup}%
  +    \else % many
  +      \expandafter\xdef\csname\the\macname\endcsname{%
  +         \bgroup\noexpand\macroargctxt
  +         \expandafter\noexpand\csname\the\macname xx\endcsname}%
  +      \expandafter\xdef\csname\the\macname xx\endcsname##1{%
  +          \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
  +      \expandafter\expandafter
  +      \expandafter\xdef
  +      \expandafter\expandafter
  +      \csname\the\macname xxx\endcsname
  +      \paramlist{%
  +          \egroup
  +          \noexpand\norecurse{\the\macname}%
  +          \noexpand\scanmacro{\temp}\egroup}%
  +    \fi
  +  \fi}
   
  -\def\deftypevrheader #1#2#3{\doind {vr}{\code{#3}}%
  -\begingroup\defname {\defheaderxcond#2\relax$$$#3}{#1}
  -\interlinepenalty=10000
  -\endgraf\penalty 10000\vskip -\parskip\penalty 10000
  -\endgroup}
  +\def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
   
  -% This definition is run if you use @defvarx
  -% anywhere other than immediately after a @defvar or @defvarx.
  +% \braceorline decides whether the next nonwhitespace character is a
  +% {.  If so it reads up to the closing }, if not, it reads the whole
  +% line.  Whatever was read is then fed to the next control sequence
  +% as an argument (by \parsebrace or \parsearg)
  +\def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx}
  +\def\braceorlinexxx{%
  +  \ifx\nchar\bgroup\else
  +    \expandafter\parsearg
  +  \fi \next}
  +
  +% We want to disable all macros during \shipout so that they are not
  +% expanded by \write.
  +\def\turnoffmacros{\begingroup \def\do##1{\let\noexpand##1=\relax}%
  +  \edef\next{\macrolist}\expandafter\endgroup\next}
  +
  +% For \indexnofonts, we need to get rid of all macros, leaving only the
  +% arguments (if present).  Of course this is not nearly correct, but it
  +% is the best we can do for now.  makeinfo does not expand macros in the
  +% argument to @deffn, which ends up writing an index entry, and texindex
  +% isn't prepared for an index sort entry that starts with \.
  +% 
  +% Since macro invocations are followed by braces, we can just redefine them
  +% to take a single TeX argument.  The case of a macro invocation that
  +% goes to end-of-line is not handled.
  +% 
  +\def\emptyusermacros{\begingroup
  +  \def\do##1{\let\noexpand##1=\noexpand\asis}%
  +  \edef\next{\macrolist}\expandafter\endgroup\next}
   
  -\def\defvrx #1 address@hidden in invalid context}}
  -\def\defvarx #1 address@hidden in invalid context}}
  -\def\defoptx #1 address@hidden in invalid context}}
  -\def\deftypevarx #1 address@hidden in invalid context}}
  -\def\deftypevrx #1 address@hidden in invalid context}}
   
  -% Now define @deftp
  -% Args are printed in bold, a slight difference from @defvar.
  +% @alias.
  +% We need some trickery to remove the optional spaces around the equal
  +% sign.  Just make them active and then expand them all to nothing.
  +\def\alias{\parseargusing\obeyspaces\aliasxxx}
  +\def\aliasxxx #1{\aliasyyy#1\relax}
  +\def\aliasyyy #1=#2\relax{%
  +  {%
  +    \expandafter\let\obeyedspace=\empty
  +    \xdef\next{\global\let\makecsname{#1}=\makecsname{#2}}%
  +  }%
  +  \next
  +}
   
  -\def\deftpargs #1{\bf \defvarargs{#1}}
   
  -% @deftp Class window height width ...
  +\message{cross references,}
   
  -\def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader}
  +\newwrite\auxfile
   
  -\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
  -\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
  +\newif\ifhavexrefs    % True if xref values are known.
  +\newif\ifwarnedxrefs  % True if we warned once that they aren't known.
   
  -% This definition is run if you use @deftpx, etc
  -% anywhere other than immediately after a @deftp, etc.
  +% @inforef is relatively simple.
  +\def\inforef #1{\inforefzzz #1,,,,**}
  +\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} 
\file{\ignorespaces #3{}},
  +  node \samp{\ignorespaces#1{}}}
   
  -\def\deftpx #1 address@hidden in invalid context}}
  +% @node's only job in TeX is to define \lastnode, which is used in
  +% cross-references.  The @node line might or might not have commas, and
  +% might or might not have spaces before the first comma, like:
  +% @node foo , bar , ...
  +% We don't want such trailing spaces in the node name.
  +%
  +\parseargdef\node{\checkenv{}\donode #1 ,\finishnodeparse}
  +%
  +% also remove a trailing comma, in case of something like this:
  +% @node Help-Cross,  ,  , Cross-refs
  +\def\donode#1 ,#2\finishnodeparse{\dodonode #1,\finishnodeparse}
  +\def\dodonode#1,#2\finishnodeparse{\gdef\lastnode{#1}}
   
  -\message{cross reference,}
  -% Define cross-reference macros
  -\newwrite \auxfile
  +\let\nwnode=\node
  +\let\lastnode=\empty
   
  -\newif\ifhavexrefs  % True if xref values are known.
  -\newif\ifwarnedxrefs  % True if we warned once that they aren't known.
  +% Write a cross-reference definition for the current node.  #1 is the
  +% type (Ynumbered, Yappendix, Ynothing).
  +%
  +\def\donoderef#1{%
  +  \ifx\lastnode\empty\else
  +    \setref{\lastnode}{#1}%
  +    \global\let\lastnode=\empty
  +  \fi
  +}
   
  -% \setref{foo} defines a cross-reference point named foo.
  +% @anchor{NAME} -- define xref target at arbitrary point.
  +%
  +\newcount\savesfregister
  +%
  +\def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
  +\def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
  +\def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
  +
  +% \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an
  +% anchor), which consists of three parts:
  +% 1) NAME-title - the current sectioning name taken from \thissection,
  +%                 or the anchor name.
  +% 2) NAME-snt   - section number and type, passed as the SNT arg, or
  +%                 empty for anchors.
  +% 3) NAME-pg    - the page number.
  +%
  +% This is called from \donoderef, \anchor, and \dofloat.  In the case of
  +% floats, there is an additional part, which is not written here:
  +% 4) NAME-lof   - the text as it should appear in a @listoffloats.
  +%
  +\def\setref#1#2{%
  +  \pdfmkdest{#1}%
  +  \iflinks
  +    {%
  +      \atdummies  % preserve commands, but don't expand them
  +      \turnoffactive
  +      \edef\writexrdef##1##2{%
  +     address@hidden #1 of \setref, expanded by the \edef
  +       ##1}{##2}}% these are parameters of \writexrdef
  +      }%
  +      \toks0 = \expandafter{\thissection}%
  +      \immediate \writexrdef{title}{\the\toks0 }%
  +      \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc.
  +      \writexrdef{pg}{\folio}% will be written later, during \shipout
  +    }%
  +  \fi
  +}
   
  -\def\setref#1{%
  -\dosetq{#1-title}{Ytitle}%
  -\dosetq{#1-pg}{Ypagenumber}%
  -\dosetq{#1-snt}{Ysectionnumberandtype}}
  -
  -\def\unnumbsetref#1{%
  -\dosetq{#1-title}{Ytitle}%
  -\dosetq{#1-pg}{Ypagenumber}%
  -\dosetq{#1-snt}{Ynothing}}
  -
  -\def\appendixsetref#1{%
  -\dosetq{#1-title}{Ytitle}%
  -\dosetq{#1-pg}{Ypagenumber}%
  -\dosetq{#1-snt}{Yappendixletterandtype}}
  -
  -% \xref, \pxref, and \ref generate cross-references to specified points.
  -% For \xrefX, #1 is the node name, #2 the name of the Info
  -% cross-reference, #3 the printed node name, #4 the name of the Info
  -% file, #5 the name of the printed manual.  All but the node name can be
  -% omitted.
  +% @xref, @pxref, and @ref generate cross-references.  For \xrefX, #1 is
  +% the node name, #2 the name of the Info cross-reference, #3 the printed
  +% node name, #4 the name of the Info file, #5 the name of the printed
  +% manual.  All but the node name can be omitted.
   %
   \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
   \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
   \def\ref#1{\xrefX[#1,,,,,,,]}
   \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
  +  \unsepspaces
     \def\printedmanual{\ignorespaces #5}%
  -  \def\printednodename{\ignorespaces #3}%
  -  \setbox1=\hbox{\printedmanual}%
  -  \setbox0=\hbox{\printednodename}%
  +  \def\printedrefname{\ignorespaces #3}%
  +  \setbox1=\hbox{\printedmanual\unskip}%
  +  \setbox0=\hbox{\printedrefname\unskip}%
     \ifdim \wd0 = 0pt
       % No printed node name was explicitly given.
  -    \ifx\SETxref-automatic-section-title\relax %
  +    \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
  +      % Use the node name inside the square brackets.
  +      \def\printedrefname{\ignorespaces #1}%
  +    \else
         % Use the actual chapter/section title appear inside
         % the square brackets.  Use the real section title if we have it.
  -      \ifdim \wd1>0pt%
  +      \ifdim \wd1 > 0pt
           % It is in another manual, so we don't have it.
  -        \def\printednodename{\ignorespaces #1}%
  +        \def\printedrefname{\ignorespaces #1}%
         \else
           \ifhavexrefs
             % We know the real title if we have the xref values.
  -          \def\printednodename{\refx{#1-title}}%
  +          \def\printedrefname{\refx{#1-title}{}}%
           \else
             % Otherwise just copy the Info node name.
  -          \def\printednodename{\ignorespaces #1}%
  +          \def\printedrefname{\ignorespaces #1}%
           \fi%
         \fi
  -      \def\printednodename{#1-title}%
  -    \else
  -      % Use the node name inside the square brackets.
  -      \def\printednodename{\ignorespaces #1}%
       \fi
     \fi
     %
  -  % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
  -  % insert empty discretionaries after hyphens, which means that it will
  -  % not find a line break at a hyphen in a node names.  Since some manuals
  -  % are best written with fairly long node names, containing hyphens, this
  -  % is a loss.  Therefore, we give the text of the node name again, so it
  -  % is as if TeX is seeing it for the first time.
  -  \ifdim \wd1 > 0pt
  -    \putwordsection{} ``\printednodename'' in \cite{\printedmanual}%
  -  \else
  -    % _ (for example) has to be the character _ for the purposes of the
  -    % control sequence corresponding to the node, but it has to expand
  -    % into the usual \leavevmode...\vrule stuff for purposes of
  -    % printing. So we \turnoffactive for the \refx-snt, back on for the
  -    % printing, back off for the \refx-pg.
  -    {\turnoffactive \refx{#1-snt}{}}%
  -    \space [\printednodename],\space
  -    \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
  +  % Make link in pdf output.
  +  \ifpdf
  +    \leavevmode
  +    \getfilename{#4}%
  +    {\turnoffactive
  +     % See comments at \activebackslashdouble.
  +     {\activebackslashdouble \xdef\pdfxrefdest{#1}%
  +      \backslashparens\pdfxrefdest}%
  +     %
  +     \ifnum\filenamelength>0
  +       \startlink attr{/Border [0 0 0]}%
  +         goto file{\the\filename.pdf} name{\pdfxrefdest}%
  +     \else
  +       \startlink attr{/Border [0 0 0]}%
  +         goto name{\pdfmkpgn{\pdfxrefdest}}%
  +     \fi
  +    }%
  +    \linkcolor
  +  \fi
  +  %
  +  % Float references are printed completely differently: "Figure 1.2"
  +  % instead of "[somenode], p.3".  We distinguish them by the
  +  % LABEL-title being set to a magic string.
  +  {%
  +    % Have to otherify everything special to allow the \csname to
  +    % include an _ in the xref name, etc.
  +    \indexnofonts
  +    \turnoffactive
  +    \expandafter\global\expandafter\let\expandafter\Xthisreftitle
  +      \csname XR#1-title\endcsname
  +  }%
  +  \iffloat\Xthisreftitle
  +    % If the user specified the print name (third arg) to the ref,
  +    % print it instead of our usual "Figure 1.2".
  +    \ifdim\wd0 = 0pt
  +      \refx{#1-snt}%
  +    \else
  +      \printedrefname
  +    \fi
  +    %
  +    % if the user also gave the printed manual name (fifth arg), append
  +    % "in MANUALNAME".
  +    \ifdim \wd1 > 0pt
  +      \space \putwordin{} \cite{\printedmanual}%
  +    \fi
  +  \else
  +    % node/anchor (non-float) references.
  +    %
  +    % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
  +    % insert empty discretionaries after hyphens, which means that it will
  +    % not find a line break at a hyphen in a node names.  Since some manuals
  +    % are best written with fairly long node names, containing hyphens, this
  +    % is a loss.  Therefore, we give the text of the node name again, so it
  +    % is as if TeX is seeing it for the first time.
  +    \ifdim \wd1 > 0pt
  +      \putwordsection{} ``\printedrefname'' \putwordin{} 
\cite{\printedmanual}%
  +    \else
  +      % _ (for example) has to be the character _ for the purposes of the
  +      % control sequence corresponding to the node, but it has to expand
  +      % into the usual \leavevmode...\vrule stuff for purposes of
  +      % printing. So we \turnoffactive for the \refx-snt, back on for the
  +      % printing, back off for the \refx-pg.
  +      {\turnoffactive
  +       % Only output a following space if the -snt ref is nonempty; for
  +       % @unnumbered and @anchor, it won't be.
  +       \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
  +       \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
  +      }%
  +      % output the `[mynode]' via a macro so it can be overridden.
  +      \xrefprintnodename\printedrefname
  +      %
  +      % But we always want a comma and a space:
  +      ,\space
  +      %
  +      % output the `page 3'.
  +      \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
  +    \fi
     \fi
  +  \endlink
   \endgroup}
   
  -% \dosetq is the interface for calls from other macros
  -
  -% Use \turnoffactive so that punctuation chars such as underscore
  -% work in node names.
  -\def\dosetq #1#2{{\let\folio=0 \turnoffactive%
  -\edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%
  -\next}}
  -
  -% \internalsetq {foo}{page} expands into
  -% CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
  -% When the aux file is read, ' is the escape character
  -
  -\def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}}
  -
  -% Things to be expanded by \internalsetq
  -
  -\def\Ypagenumber{\folio}
  -
  -\def\Ytitle{\thissection}
  -
  -\def\Ynothing{}
  -
  -\def\Ysectionnumberandtype{%
  -\ifnum\secno=0 \putwordChapter\xreftie\the\chapno %
  -\else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno %
  -\else \ifnum \subsubsecno=0 %
  -\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno %
  -\else %
  -\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno 
%
  -\fi \fi \fi }
  -
  -\def\Yappendixletterandtype{%
  -\ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}%
  -\else \ifnum \subsecno=0 
\putwordSection\xreftie'char\the\appendixno.\the\secno %
  -\else \ifnum \subsubsecno=0 %
  -\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno %
  -\else %
  
-\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno
 %
  -\fi \fi \fi }
  -
  -\gdef\xreftie{'tie}
  +% This macro is called from \xrefX for the `[nodename]' part of xref
  +% output.  It's a separate macro only so it can be changed more easily,
  +% since square brackets don't work well in some documents.  Particularly
  +% one that Bob is working on :).
  +%
  +\def\xrefprintnodename#1{[#1]}
   
  -% Use TeX 3.0's \inputlineno to get the line number, for better error
  -% messages, but if we're using an old version of TeX, don't do anything.
  +% Things referred to by \setref.
   %
  -\ifx\inputlineno\thisisundefined
  -  \let\linenumber = \empty % Non-3.0.
  -\else
  -  \def\linenumber{\the\inputlineno:\space}
  -\fi
  +\def\Ynothing{}
  +\def\Yomitfromtoc{}
  +\def\Ynumbered{%
  +  \ifnum\secno=0
  +    address@hidden \the\chapno
  +  \else \ifnum\subsecno=0
  +    address@hidden \the\chapno.\the\secno
  +  \else \ifnum\subsubsecno=0
  +    address@hidden \the\chapno.\the\secno.\the\subsecno
  +  \else
  +    address@hidden \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno
  +  \fi\fi\fi
  +}
  +\def\Yappendix{%
  +  \ifnum\secno=0
  +     address@hidden @char\the\appendixno{}%
  +  \else \ifnum\subsecno=0
  +     address@hidden @char\the\appendixno.\the\secno
  +  \else \ifnum\subsubsecno=0
  +    address@hidden @char\the\appendixno.\the\secno.\the\subsecno
  +  \else
  +    address@hidden
  +      @char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno
  +  \fi\fi\fi
  +}
   
   % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named 
NAME.
   % If its value is nonempty, SUFFIX is output afterward.
  -
  +%
   \def\refx#1#2{%
  -  \expandafter\ifx\csname X#1\endcsname\relax
  +  {%
  +    \indexnofonts
  +    \otherbackslash
  +    \expandafter\global\expandafter\let\expandafter\thisrefX
  +      \csname XR#1\endcsname
  +  }%
  +  \ifx\thisrefX\relax
       % If not defined, say something at least.
  -    $\langle$un\-de\-fined$\rangle$%
  -    \ifhavexrefs
  -      \message{\linenumber Undefined cross reference `#1'.}%
  -    \else
  -      \ifwarnedxrefs\else
  -        \global\warnedxrefstrue
  -        \message{Cross reference values unknown; you must run TeX again.}%
  +    \angleleft un\-de\-fined\angleright
  +    \iflinks
  +      \ifhavexrefs
  +        \message{\linenumber Undefined cross reference `#1'.}%
  +      \else
  +        \ifwarnedxrefs\else
  +          \global\warnedxrefstrue
  +          \message{Cross reference values unknown; you must run TeX again.}%
  +        \fi
         \fi
       \fi
     \else
       % It's defined, so just use it.
  -    \csname X#1\endcsname
  +    \thisrefX
     \fi
     #2% Output the suffix in any case.
   }
   
  +% This is the macro invoked by entries in the aux file.  Usually it's
  +% just a \def (we prepend XR to the control sequence name to avoid
  +% collisions).  But if this is a float type, we have more work to do.
  +%
  +\def\xrdef#1#2{%
  +  \expandafter\gdef\csname XR#1\endcsname{#2}% remember this xref value.
  +  %
  +  % Was that xref control sequence that we just defined for a float?
  +  \expandafter\iffloat\csname XR#1\endcsname
  +    % it was a float, and we have the (safe) float type in \iffloattype.
  +    \expandafter\let\expandafter\floatlist
  +      \csname floatlist\iffloattype\endcsname
  +    %
  +    % Is this the first time we've seen this float type?
  +    \expandafter\ifx\floatlist\relax
  +      \toks0 = {\do}% yes, so just \do
  +    \else
  +      % had it before, so preserve previous elements in list.
  +      \toks0 = \expandafter{\floatlist\do}%
  +    \fi
  +    %
  +    % Remember this xref in the control sequence \floatlistFLOATTYPE,
  +    % for later use in \listoffloats.
  +    \expandafter\xdef\csname floatlist\iffloattype\endcsname{\the\toks0{#1}}%
  +  \fi
  +}
  +
   % Read the last existing aux file, if any.  No error if none exists.
  +%
  +\def\tryauxfile{%
  +  \openin 1 \jobname.aux
  +  \ifeof 1 \else
  +    \readdatafile{aux}%
  +    \global\havexrefstrue
  +  \fi
  +  \closein 1
  +}
   
  -% This is the macro invoked by entries in the aux file.
  -\def\xrdef #1#2{
  -{\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}}
  +\def\setupdatafile{%
  +  address@hidden
  +  \catcode`\^^A=\other
  +  \catcode`\^^B=\other
  +  \catcode`\^^C=\other
  +  \catcode`\^^D=\other
  +  \catcode`\^^E=\other
  +  \catcode`\^^F=\other
  +  \catcode`\^^G=\other
  +  \catcode`\^^H=\other
  +  \catcode`\^^K=\other
  +  \catcode`\^^L=\other
  +  \catcode`\^^N=\other
  +  \catcode`\^^P=\other
  +  \catcode`\^^Q=\other
  +  \catcode`\^^R=\other
  +  \catcode`\^^S=\other
  +  \catcode`\^^T=\other
  +  \catcode`\^^U=\other
  +  \catcode`\^^V=\other
  +  \catcode`\^^W=\other
  +  \catcode`\^^X=\other
  +  \catcode`\^^Z=\other
  +  \catcode`\^^[=\other
  +  \catcode`\^^\=\other
  +  \catcode`\^^]=\other
  +  \catcode`\^^^=\other
  +  \catcode`\^^_=\other
  +  % It was suggested to set the catcode of ^ to 7, which would allow ^^e4 
etc.
  +  % in xref tags, i.e., node names.  But since ^^e4 notation isn't
  +  % supported in the main text, it doesn't seem desirable.  Furthermore,
  +  % that is not enough: for node names that actually contain a ^
  +  % character, we would end up writing a line like this: 'xrdef {'hat
  +  % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
  +  % argument, and \hat is not an expandable control sequence.  It could
  +  % all be worked out, but why?  Either we support ^^ or we don't.
  +  %
  +  % The other change necessary for this was to define \auxhat:
  +  % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
  +  % and then to call \auxhat in \setq.
  +  %
  +  \catcode`\^=\other
  +  %
  +  % Special characters.  Should be turned off anyway, but...
  +  \catcode`\~=\other
  +  \catcode`\[=\other
  +  \catcode`\]=\other
  +  \catcode`\"=\other
  +  \catcode`\_=\other
  +  \catcode`\|=\other
  +  \catcode`\<=\other
  +  \catcode`\>=\other
  +  \catcode`\$=\other
  +  \catcode`\#=\other
  +  \catcode`\&=\other
  +  \catcode`\%=\other
  +  \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
  +  %
  +  % This is to support \ in node names and titles, since the \
  +  % characters end up in a \csname.  It's easier than
  +  % leaving it active and making its active definition an actual \
  +  % character.  What I don't understand is why it works in the *value*
  +  % of the xrdef.  Seems like it should be a catcode12 \, and that
  +  % should not typeset properly.  But it works, so I'm moving on for
  +  % now.  --karl, 15jan04.
  +  \catcode`\\=\other
  +  %
  +  % Make the characters 128-255 be printing characters.
  +  {%
  +    \count1=128
  +    \def\loop{%
  +      \catcode\count1=\other
  +      \advance\count1 by 1
  +      \ifnum \count1<256 \loop \fi
  +    }%
  +  }%
  +  %
  +  % @ is our escape character in .aux files, and we need braces.
  +  \catcode`\{=1
  +  \catcode`\}=2
  +  address@hidden
  +}
   
  -\def\readauxfile{%
  +\def\readdatafile#1{%
   \begingroup
  -\catcode address@hidden
  -\catcode `\{=\other
  -\catcode `\=\other
  -\catcode `\^^C=\other
  -\catcode `\^^D=\other
  -\catcode `\^^E=\other
  -\catcode `\^^F=\other
  -\catcode `\^^G=\other
  -\catcode `\^^H=\other
  -\catcode `\=\other
  -\catcode `\^^L=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode `\=\other
  -\catcode 26=\other
  -\catcode `\^^[=\other
  -\catcode `\^^\=\other
  -\catcode `\^^]=\other
  -\catcode `\^^^=\other
  -\catcode `\^^_=\other
  -\catcode address@hidden
  -\catcode `\^=\other
  -\catcode `\~=\other
  -\catcode `\[=\other
  -\catcode `\]=\other
  -\catcode`\"=\other
  -\catcode`\_=\other
  -\catcode`\|=\other
  -\catcode`\<=\other
  -\catcode`\>=\other
  -\catcode `\$=\other
  -\catcode `\#=\other
  -\catcode `\&=\other
  -% `\+ does not work, so use 43.
  -\catcode 43=\other
  -% Make the characters 128-255 be printing characters
  -{%
  -  \count 1=128
  -  \def\loop{%
  -    \catcode\count 1=\other
  -    \advance\count 1 by 1
  -    \ifnum \count 1<256 \loop \fi
  -  }%
  -}%
  -% the aux file uses ' as the escape.
  -% Turn off \ as an escape so we do not lose on
  -% entries which were dumped with control sequences in their names.
  -% For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
  -% Reference to such entries still does not work the way one would wish,
  -% but at least they do not bomb out when the aux file is read in.
  -\catcode `\{=1 \catcode `\}=2
  -\catcode `\%=\other
  -\catcode `\'=0
  -\catcode `\\=\other
  -\openin 1 \jobname.aux
  -\ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue
  -\global\warnedobstrue
  -\fi
  -% Open the new aux file.  Tex will close it automatically at exit.
  -\openout \auxfile=\jobname.aux
  +  \setupdatafile
  +  \input\jobname.#1
   \endgroup}
   
  -
  -% Footnotes.
  +\message{insertions,}
  +% including footnotes.
   
   \newcount \footnoteno
   
   % The trailing space in the following definition for supereject is
   % vital for proper filling; pages come out unaligned when you do a
   % pagealignmacro call if that space before the closing brace is
  -% removed.
  +% removed. (Generally, numeric constants should always be followed by a
  +% space to prevent strange expansion errors.)
   \def\supereject{\par\penalty -20000\footnoteno =0 }
   
  -% @footnotestyle is meaningful for info output only..
  +% @footnotestyle is meaningful for info output only.
   \let\footnotestyle=\comment
   
  -\let\ptexfootnote=\footnote
  -
   {\catcode address@hidden
   %
   % Auto-number footnotes.  Otherwise like plain.
   \gdef\footnote{%
  +  \let\indent=\ptexindent
  +  \let\noindent=\ptexnoindent
     \global\advance\footnoteno by address@hidden
     \edef\thisfootno{$^{\the\footnoteno}$}%
     %
     % In case the footnote comes at the end of a sentence, preserve the
     % extra spacing after we do the footnote number.
     address@hidden
  -  address@hidden/\fi
  +  address@hidden
     %
     % Remove inadvertent blank space before typesetting the footnote number.
     \unskip
     address@hidden
  -  \footnotezzz
  +  \dofootnote
   }%
   
   % Don't bother with the trickery in plain.tex to not require the
   % footnote text as a parameter.  Our footnotes don't need to be so general.
   %
  -\long\gdef\footnotezzz#1{\insert\footins{%
  +% Oh yes, they do; otherwise, @ifset (and anything else that uses
  +% \parseargline) fails inside footnotes because the tokens are fixed when
  +% the footnote is read.  --karl, 16nov96.
  +%
  +\gdef\dofootnote{%
  +  \insert\footins\bgroup
     % We want to typeset this text as a normal paragraph, even if the
     % footnote reference occurs in (for example) a display environment.
     % So reset some parameters.
  +  \hsize=\pagewidth
     \interlinepenalty\interfootnotelinepenalty
     \splittopskip\ht\strutbox % top baseline for broken footnotes
     \splitmaxdepth\dp\strutbox
  @@ -4047,97 +6406,464 @@
     address@hidden
     \parindent\defaultparindent
     %
  -  % Hang the footnote text off the number.
  -  \hang
  +  \smallfonts \rm
  +  %
  +  % Because we use hanging indentation in footnotes, a @noindent appears
  +  % to exdent this text, so make it be a no-op.  makeinfo does not use
  +  % hanging indentation so @noindent can still be needed within footnote
  +  % text after an @example or the like (not that this is good style).
  +  \let\noindent = \relax
  +  %
  +  % Hang the footnote text off the number.  Use \everypar in case the
  +  % footnote extends for more than one paragraph.
  +  \everypar = {\hang}%
     \textindent{\thisfootno}%
     %
     % Don't crash into the line above the footnote text.  Since this
     % expands into a box, it must come within the paragraph, lest it
     % provide a place where TeX can split the footnote.
     \footstrut
  -  #1\strut}%
  +  address@hidden
   }
  -
   }%end \catcode address@hidden
   
  -% Set the baselineskip to #1, and the lineskip and strut size
  -% correspondingly.  There is no deep meaning behind these magic numbers
  -% used as factors; they just match (closely enough) what Knuth defined.
  +% In case a @footnote appears in a vbox, save the footnote text and create
  +% the real \insert just after the vbox finished.  Otherwise, the insertion
  +% would be lost.
  +% Similarily, if a @footnote appears inside an alignment, save the footnote
  +% text to a box and make the \insert when a row of the table is finished.
  +% And the same can be done for other insert classes.  --kasal, 16nov03.
  +
  +% Replace the \insert primitive by a cheating macro.
  +% Deeper inside, just make sure that the saved insertions are not spilled
  +% out prematurely.
  +%
  +\def\startsavinginserts{%
  +  \ifx \insert\ptexinsert
  +    \let\insert\saveinsert
  +  \else
  +    \let\checkinserts\relax
  +  \fi
  +}
  +
  +% This \insert replacement works for both \insert\footins{foo} and
  +% \insert\footins\bgroup foo\egroup, but it doesn't work for \insert27{foo}.
   %
  -\def\lineskipfactor{.08333}
  -\def\strutheightpercent{.70833}
  -\def\strutdepthpercent {.29167}
  +\def\saveinsert#1{%
  +  \edef\next{\noexpand\savetobox \makeSAVEname#1}%
  +  \afterassignment\next
  +  % swallow the left brace
  +  \let\temp =
  +}
  +\def\makeSAVEname#1{\makecsname{SAVE\expandafter\gobble\string#1}}
  +\def\savetobox#1{\global\setbox#1 = \vbox\bgroup \unvbox#1}
  +
  +\def\checksaveins#1{\ifvoid#1\else \placesaveins#1\fi}
  +
  +\def\placesaveins#1{%
  +  \ptexinsert \csname\expandafter\gobblesave\string#1\endcsname
  +    {\box#1}%
  +}
  +
  +% eat @SAVE -- beware, all of them have catcode \other:
  +{
  +  \def\dospecials{\do S\do A\do V\do E} \uncatcodespecials  %  ;-)
  +  \gdef\gobblesave @SAVE{}
  +}
  +
  +% initialization:
  +\def\newsaveins #1{%
  +  \edef\next{\noexpand\newsaveinsX \makeSAVEname#1}%
  +  \next
  +}
  +\def\newsaveinsX #1{%
  +  \csname newbox\endcsname #1%
  +  \expandafter\def\expandafter\checkinserts\expandafter{\checkinserts
  +    \checksaveins #1}%
  +}
  +
  +% initialize:
  +\let\checkinserts\empty
  +\newsaveins\footins
  +\newsaveins\margin
  +
  +
  +% @image.  We use the macros from epsf.tex to support this.
  +% If epsf.tex is not installed and @image is used, we complain.
  +%
  +% Check for and read epsf.tex up front.  If we read it only at @image
  +% time, we might be inside a group, and then its definitions would get
  +% undone and the next image would fail.
  +\openin 1 = epsf.tex
  +\ifeof 1 \else
  +  % Do not bother showing banner with epsf.tex v2.7k (available in
  +  % doc/epsf.tex and on ctan).
  +  \def\epsfannounce{\toks0 = }%
  +  \input epsf.tex
  +\fi
  +\closein 1
   %
  -\def\setleading#1{%
  -  \normalbaselineskip = #1\relax
  -  \normallineskip = \lineskipfactor\normalbaselineskip
  -  \normalbaselines
  -  \setbox\strutbox =\hbox{%
  -    \vrule width0pt height\strutheightpercent\baselineskip
  -                    depth \strutdepthpercent \baselineskip
  -  }%
  +% We will only complain once about lack of epsf.tex.
  +\newif\ifwarnednoepsf
  +\newhelp\noepsfhelp{epsf.tex must be installed for images to
  +  work.  It is also included in the Texinfo distribution, or you can get
  +  it from ftp://tug.org/tex/epsf.tex.}
  +%
  +\def\image#1{%
  +  \ifx\epsfbox\undefined
  +    \ifwarnednoepsf \else
  +      \errhelp = \noepsfhelp
  +      \errmessage{epsf.tex not found, images will be ignored}%
  +      \global\warnednoepsftrue
  +    \fi
  +  \else
  +    \imagexxx #1,,,,,\finish
  +  \fi
   }
  +%
  +% Arguments to @image:
  +% #1 is (mandatory) image filename; we tack on .eps extension.
  +% #2 is (optional) width, #3 is (optional) height.
  +% #4 is (ignored optional) html alt text.
  +% #5 is (ignored optional) extension.
  +% #6 is just the usual extra ignored arg for parsing this stuff.
  +\newif\ifimagevmode
  +\def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup
  +  \catcode`\^^M = 5     % in case we're inside an example
  +  \normalturnoffactive  % allow _ et al. in names
  +  % If the image is by itself, center it.
  +  \ifvmode
  +    \imagevmodetrue
  +    \nobreak\bigskip
  +    % Usually we'll have text after the image which will insert
  +    % \parskip glue, so insert it here too to equalize the space
  +    % above and below.
  +    \nobreak\vskip\parskip
  +    \nobreak
  +    \line\bgroup\hss
  +  \fi
  +  %
  +  % Output the image.
  +  \ifpdf
  +    \dopdfimage{#1}{#2}{#3}%
  +  \else
  +    % \epsfbox itself resets \epsf?size at each figure.
  +    \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax 
\fi
  +    \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax 
\fi
  +    \epsfbox{#1.eps}%
  +  \fi
  +  %
  +  \ifimagevmode \hss \egroup \bigbreak \fi  % space after the image
  +\endgroup}
   
  -% @| inserts a changebar to the left of the current line.  It should
  -% surround any changed text.  This approach does *not* work if the
  -% change spans more than two lines of output.  To handle that, we would
  -% have adopt a much more difficult approach (putting marks into the main
  -% vertical list for the beginning and end of each change).
  +
  +% @float FLOATTYPE,LABEL,LOC ... @end float for displayed figures, tables,
  +% etc.  We don't actually implement floating yet, we always include the
  +% float "here".  But it seemed the best name for the future.
   %
  -\def\|{%
  -  % \vadjust can only be used in horizontal mode.
  -  \leavevmode
  +\envparseargdef\float{\eatcommaspace\eatcommaspace\dofloat#1, , ,\finish}
  +
  +% There may be a space before second and/or third parameter; delete it.
  +\def\eatcommaspace#1, {#1,}
  +
  +% #1 is the optional FLOATTYPE, the text label for this float, typically
  +% "Figure", "Table", "Example", etc.  Can't contain commas.  If omitted,
  +% this float will not be numbered and cannot be referred to.
  +%
  +% #2 is the optional xref label.  Also must be present for the float to
  +% be referable.
  +%
  +% #3 is the optional positioning argument; for now, it is ignored.  It
  +% will somehow specify the positions allowed to float to (here, top, bottom).
  +%
  +% We keep a separate counter for each FLOATTYPE, which we reset at each
  +% chapter-level command.
  +\let\resetallfloatnos=\empty
  +%
  +\def\dofloat#1,#2,#3,#4\finish{%
  +  \let\thiscaption=\empty
  +  \let\thisshortcaption=\empty
     %
  -  % Append this vertical mode material after the current line in the output.
  -  \vadjust{%
  -    % We want to insert a rule with the height and depth of the current
  -    % leading; that is exactly what \strutbox is supposed to record.
  -    \vskip-\baselineskip
  +  % don't lose footnotes inside @float.
  +  %
  +  % BEWARE: when the floats start float, we have to issue warning whenever an
  +  % insert appears inside a float which could possibly float. --kasal, 
26may04
  +  %
  +  \startsavinginserts
  +  %
  +  % We can't be used inside a paragraph.
  +  \par
  +  %
  +  \vtop\bgroup
  +    \def\floattype{#1}%
  +    \def\floatlabel{#2}%
  +    \def\floatloc{#3}% we do nothing with this yet.
       %
  -    % \vadjust-items are inserted at the left edge of the type.  So
  -    % the \llap here moves out into the left-hand margin.
  -    \llap{%
  +    \ifx\floattype\empty
  +      \let\safefloattype=\empty
  +    \else
  +      {%
  +        % the floattype might have accents or other special characters,
  +        % but we need to use it in a control sequence name.
  +        \indexnofonts
  +        \turnoffactive
  +        \xdef\safefloattype{\floattype}%
  +      }%
  +    \fi
  +    %
  +    % If label is given but no type, we handle that as the empty type.
  +    \ifx\floatlabel\empty \else
  +      % We want each FLOATTYPE to be numbered separately (Figure 1,
  +      % Table 1, Figure 2, ...).  (And if no label, no number.)
         %
  -      % For a thicker or thinner bar, change the `1pt'.
  -      \vrule height\baselineskip width1pt
  +      \expandafter\getfloatno\csname\safefloattype floatno\endcsname
  +      \global\advance\floatno by 1
         %
  -      % This is the space between the bar and the text.
  -      \hskip 12pt
  -    }%
  -  }%
  +      {%
  +        % This magic value for \thissection is output by \setref as the
  +        % XREFLABEL-title value.  \xrefX uses it to distinguish float
  +        % labels (which have a completely different output format) from
  +        % node and anchor labels.  And \xrdef uses it to construct the
  +        % lists of floats.
  +        %
  +        \edef\thissection{\floatmagic=\safefloattype}%
  +        \setref{\floatlabel}{Yfloat}%
  +      }%
  +    \fi
  +    %
  +    % start with \parskip glue, I guess.
  +    \vskip\parskip
  +    %
  +    % Don't suppress indentation if a float happens to start a section.
  +    \restorefirstparagraphindent
   }
   
  -% For a final copy, take out the rectangles
  -% that mark overfull boxes (in case you have decided
  -% that the text looks ok even though it passes the margin).
  +% we have these possibilities:
  +% @float Foo,lbl & @caption{Cap}: Foo 1.1: Cap
  +% @float Foo,lbl & no caption:    Foo 1.1
  +% @float Foo & @caption{Cap}:     Foo: Cap
  +% @float Foo & no caption:        Foo
  +% @float ,lbl & Caption{Cap}:     1.1: Cap
  +% @float ,lbl & no caption:       1.1
  +% @float & @caption{Cap}:         Cap
  +% @float & no caption:
   %
  -\def\finalout{\overfullrule=0pt}
  +\def\Efloat{%
  +    \let\floatident = \empty
  +    %
  +    % In all cases, if we have a float type, it comes first.
  +    \ifx\floattype\empty \else \def\floatident{\floattype}\fi
  +    %
  +    % If we have an xref label, the number comes next.
  +    \ifx\floatlabel\empty \else
  +      \ifx\floattype\empty \else % if also had float type, need tie first.
  +        \appendtomacro\floatident{\tie}%
  +      \fi
  +      % the number.
  +      \appendtomacro\floatident{\chaplevelprefix\the\floatno}%
  +    \fi
  +    %
  +    % Start the printed caption with what we've constructed in
  +    % \floatident, but keep it separate; we need \floatident again.
  +    \let\captionline = \floatident
  +    %
  +    \ifx\thiscaption\empty \else
  +      \ifx\floatident\empty \else
  +     \appendtomacro\captionline{: }% had ident, so need a colon between
  +      \fi
  +      %
  +      % caption text.
  +      \appendtomacro\captionline{\scanexp\thiscaption}%
  +    \fi
  +    %
  +    % If we have anything to print, print it, with space before.
  +    % Eventually this needs to become an \insert.
  +    \ifx\captionline\empty \else
  +      \vskip.5\parskip
  +      \captionline
  +      %
  +      % Space below caption.
  +      \vskip\parskip
  +    \fi
  +    %
  +    % If have an xref label, write the list of floats info.  Do this
  +    % after the caption, to avoid chance of it being a breakpoint.
  +    \ifx\floatlabel\empty \else
  +      % Write the text that goes in the lof to the aux file as
  +      % \floatlabel-lof.  Besides \floatident, we include the short
  +      % caption if specified, else the full caption if specified, else 
nothing.
  +      {%
  +        \atdummies \turnoffactive
  +        % since we read the caption text in the macro world, where ^^M
  +        % is turned into a normal character, we have to scan it back, so
  +        % we don't write the literal three characters "^^M" into the aux 
file.
  +     \scanexp{%
  +       \xdef\noexpand\gtemp{%
  +         \ifx\thisshortcaption\empty
  +           \thiscaption
  +         \else
  +           \thisshortcaption
  +         \fi
  +       }%
  +     }%
  +        address@hidden
  +       \ifx\gtemp\empty \else : \gtemp \fi}}%
  +      }%
  +    \fi
  +  \egroup  % end of \vtop
  +  %
  +  % place the captured inserts
  +  %
  +  % BEWARE: when the floats start float, we have to issue warning whenever an
  +  % insert appears inside a float which could possibly float. --kasal, 
26may04
  +  %
  +  \checkinserts
  +}
   
  +% Append the tokens #2 to the definition of macro #1, not expanding either.
  +%
  +\def\appendtomacro#1#2{%
  +  \expandafter\def\expandafter#1\expandafter{#1#2}%
  +}
   
  -% End of control word definitions.
  +% @caption, @shortcaption
  +%
  +\def\caption{\docaption\thiscaption}
  +\def\shortcaption{\docaption\thisshortcaption}
  +\def\docaption{\checkenv\float \bgroup\scanargctxt\defcaption}
  +\def\defcaption#1#2{\egroup \def#1{#2}}
   
  -\message{and turning on texinfo input format.}
  +% The parameter is the control sequence identifying the counter we are
  +% going to use.  Create it if it doesn't exist and assign it to \floatno.
  +\def\getfloatno#1{%
  +  \ifx#1\relax
  +      % Haven't seen this figure type before.
  +      \csname newcount\endcsname #1%
  +      %
  +      % Remember to reset this floatno at the next chap.
  +      \expandafter\gdef\expandafter\resetallfloatnos
  +        \expandafter{\resetallfloatnos #1=0 }%
  +  \fi
  +  \let\floatno#1%
  +}
   
  -\def\openindices{%
  -   \newindex{cp}%
  -   \newcodeindex{fn}%
  -   \newcodeindex{vr}%
  -   \newcodeindex{tp}%
  -   \newcodeindex{ky}%
  -   \newcodeindex{pg}%
  +% \setref calls this to get the XREFLABEL-snt value.  We want an @xref
  +% to the FLOATLABEL to expand to "Figure 3.1".  We call \setref when we
  +% first read the @float command.
  +%
  address@hidden \chaplevelprefix\the\floatno}%
  +
  +% Magic string used for the XREFLABEL-title value, so \xrefX can
  +% distinguish floats from other xref types.
  +\def\floatmagic{!!float!!}
  +
  +% #1 is the control sequence we are passed; we expand into a conditional
  +% which is true if #1 represents a float ref.  That is, the magic
  +% \thissection value which we \setref above.
  +%
  +\def\iffloat#1{\expandafter\doiffloat#1==\finish}
  +%
  +% #1 is (maybe) the \floatmagic string.  If so, #2 will be the
  +% (safe) float type for this float.  We set \iffloattype to #2.
  +%
  +\def\doiffloat#1=#2=#3\finish{%
  +  \def\temp{#1}%
  +  \def\iffloattype{#2}%
  +  \ifx\temp\floatmagic
  +}
  +
  +% @listoffloats FLOATTYPE - print a list of floats like a table of contents.
  +%
  +\parseargdef\listoffloats{%
  +  \def\floattype{#1}% floattype
  +  {%
  +    % the floattype might have accents or other special characters,
  +    % but we need to use it in a control sequence name.
  +    \indexnofonts
  +    \turnoffactive
  +    \xdef\safefloattype{\floattype}%
  +  }%
  +  %
  +  % \xrdef saves the floats as a \do-list in \floatlistSAFEFLOATTYPE.
  +  \expandafter\ifx\csname floatlist\safefloattype\endcsname \relax
  +    \ifhavexrefs
  +      % if the user said @listoffloats foo but never @float foo.
  +      \message{\linenumber No `\safefloattype' floats to list.}%
  +    \fi
  +  \else
  +    \begingroup
  +      \leftskip=\tocindent  % indent these entries like a toc
  +      \let\do=\listoffloatsdo
  +      \csname floatlist\safefloattype\endcsname
  +    \endgroup
  +  \fi
  +}
  +
  +% This is called on each entry in a list of floats.  We're passed the
  +% xref label, in the form LABEL-title, which is how we save it in the
  +% aux file.  We strip off the -title and look up \XRLABEL-lof, which
  +% has the text we're supposed to typeset here.
  +%
  +% Figures without xref labels will not be included in the list (since
  +% they won't appear in the aux file).
  +%
  +\def\listoffloatsdo#1{\listoffloatsdoentry#1\finish}
  +\def\listoffloatsdoentry#1-title\finish{{%
  +  % Can't fully expand XR#1-lof because it can contain anything.  Just
  +  % pass the control sequence.  On the other hand, XR#1-pg is just the
  +  % page number, and we want to fully expand that so we can get a link
  +  % in pdf output.
  +  \toksA = \expandafter{\csname XR#1-lof\endcsname}%
  +  %
  +  % use the same \entry macro we use to generate the TOC and index.
  +  \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}%
  +  \writeentry
  +}}
  +
  +\message{localization,}
  +% and i18n.
  +
  +% @documentlanguage is usually given very early, just after
  +% @setfilename.  If done too late, it may not override everything
  +% properly.  Single argument is the language abbreviation.
  +% It would be nice if we could set up a hyphenation file here.
  +%
  +\parseargdef\documentlanguage{%
  +  \tex % read txi-??.tex file in plain TeX.
  +    % Read the file if it exists.
  +    \openin 1 txi-#1.tex
  +    \ifeof 1
  +      \errhelp = \nolanghelp
  +      \errmessage{Cannot read language file txi-#1.tex}%
  +    \else
  +      \input txi-#1.tex
  +    \fi
  +    \closein 1
  +  \endgroup
   }
  +\newhelp\nolanghelp{The given language definition file cannot be found or
  +is empty.  Maybe you need to install it?  In the current directory
  +should work if nowhere else does.}
   
  -% Set some numeric style parameters, for 8.5 x 11 format.
   
  -%\hsize = 6.5in
  +% @documentencoding should change something in TeX eventually, most
  +% likely, but for now just recognize it.
  +\let\documentencoding = \comment
  +
  +
  +% Page size parameters.
  +%
   \newdimen\defaultparindent \defaultparindent = 15pt
  -\parindent = \defaultparindent
  -\parskip 18pt plus 1pt
  -\setleading{15pt}
  -\advance\topskip by 1.2cm
  +
  +\chapheadingskip = 15pt plus 4pt minus 2pt
  +\secheadingskip = 12pt plus 3pt minus 2pt
  +\subsecheadingskip = 9pt plus 2pt minus 2pt
   
   % Prevent underfull vbox error messages.
  -\vbadness=10000
  +\vbadness = 10000
  +
  +% Don't be so finicky about underfull hboxes, either.
  +\hbadness = 2000
   
   % Following George Bush, just get rid of widows and orphans.
   \widowpenalty=10000
  @@ -4146,85 +6872,181 @@
   % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
   % using an old version of TeX, don't do anything.  We want the amount of
   % stretch added to depend on the line length, hence the dependence on
  -% \hsize.  This makes it come to about 9pt for the 8.5x11 format.
  +% \hsize.  We call this whenever the paper size is set.
   %
  -\ifx\emergencystretch\thisisundefined
  -  % Allow us to assign to \emergencystretch anyway.
  -  \def\emergencystretch{\dimen0}%
  -\else
  -  \emergencystretch = \hsize
  -  \divide\emergencystretch by 45
  -\fi
  -
  -% Use @smallbook to reset parameters for 7x9.5 format  (or else 7x9.25)
  -\def\smallbook{
  +\def\setemergencystretch{%
  +  \ifx\emergencystretch\thisisundefined
  +    % Allow us to assign to \emergencystretch anyway.
  +    \def\emergencystretch{\dimen0}%
  +  \else
  +    \emergencystretch = .15\hsize
  +  \fi
  +}
   
  -% These values for secheadingskip and subsecheadingskip are
  -% experiments.  RJC 7 Aug 1992
  -\global\secheadingskip = 17pt plus 6pt minus 3pt
  -\global\subsecheadingskip = 14pt plus 6pt minus 3pt
  -
  -\global\lispnarrowing = 0.3in
  -\setleading{12pt}
  -\advance\topskip by -1cm
  -\global\parskip 3pt plus 1pt
  -\global\hsize = 5in
  -\global\vsize=7.5in
  -\global\tolerance=700
  -\global\hfuzz=1pt
  -\global\contentsrightmargin=0pt
  -\global\deftypemargin=0pt
  -\global\defbodyindent=.5cm
  -
  -\global\pagewidth=\hsize
  -\global\pageheight=\vsize
  -
  -\global\let\smalllisp=\smalllispx
  -\global\let\smallexample=\smalllispx
  -\global\def\Esmallexample{\Esmalllisp}
  +% Parameters in order: 1) textheight; 2) textwidth; 3) voffset;
  +% 4) hoffset; 5) binding offset; 6) topskip; 7) physical page height; 8)
  +% physical page width.
  +%
  +% We also call \setleading{\textleading}, so the caller should define
  +% \textleading.  The caller should also set \parskip.
  +%
  +\def\internalpagesizes#1#2#3#4#5#6#7#8{%
  +  \voffset = #3\relax
  +  \topskip = #6\relax
  +  \splittopskip = \topskip
  +  %
  +  \vsize = #1\relax
  +  \advance\vsize by \topskip
  +  \outervsize = \vsize
  +  \advance\outervsize by 2\topandbottommargin
  +  \pageheight = \vsize
  +  %
  +  \hsize = #2\relax
  +  \outerhsize = \hsize
  +  \advance\outerhsize by 0.5in
  +  \pagewidth = \hsize
  +  %
  +  \normaloffset = #4\relax
  +  \bindingoffset = #5\relax
  +  %
  +  \ifpdf
  +    \pdfpageheight #7\relax
  +    \pdfpagewidth #8\relax
  +  \fi
  +  %
  +  \setleading{\textleading}
  +  %
  +  \parindent = \defaultparindent
  +  \setemergencystretch
   }
   
  +% @letterpaper (the default).
  +\def\letterpaper{{\globaldefs = 1
  +  \parskip = 3pt plus 2pt minus 1pt
  +  \textleading = 13.2pt
  +  %
  +  % If page is nothing but text, make it come out even.
  +  \internalpagesizes{46\baselineskip}{6in}%
  +                    {\voffset}{.25in}%
  +                    {\bindingoffset}{36pt}%
  +                    {11in}{8.5in}%
  +}}
  +
  +% Use @smallbook to reset parameters for 7x9.5 (or so) format.
  +\def\smallbook{{\globaldefs = 1
  +  \parskip = 2pt plus 1pt
  +  \textleading = 12pt
  +  %
  +  \internalpagesizes{7.5in}{5in}%
  +                    {\voffset}{.25in}%
  +                    {\bindingoffset}{16pt}%
  +                    {9.25in}{7in}%
  +  %
  +  \lispnarrowing = 0.3in
  +  \tolerance = 700
  +  \hfuzz = 1pt
  +  \contentsrightmargin = 0pt
  +  \defbodyindent = .5cm
  +}}
  +
   % Use @afourpaper to print on European A4 paper.
  -\def\afourpaper{
  -\global\tolerance=700
  -\global\hfuzz=1pt
  -\setleading{12pt}
  -\global\parskip 15pt plus 1pt
  -
  -\global\vsize= 53\baselineskip
  -\advance\vsize by \topskip
  -%\global\hsize=   5.85in     % A4 wide 10pt
  -\global\hsize=  6.5in
  -\global\outerhsize=\hsize
  -\global\advance\outerhsize by 0.5in
  -\global\outervsize=\vsize
  -\global\advance\outervsize by 0.6in
  -
  -\global\pagewidth=\hsize
  -\global\pageheight=\vsize
  -}
  -
  -% Allow control of the text dimensions.  Parameters in order: textheight;
  -% textwidth; \voffset; \hoffset (!); binding offset.  All require a 
dimension;
  -% header is additional; added length extends the bottom of the page.
  -
  -\def\changepagesizes#1#2#3#4#5
  -{\global\vsize= #1
  - \advance\vsize by \topskip
  - \global\voffset= #3
  - \global\hsize= #2
  - \global\outerhsize=\hsize
  - \global\advance\outerhsize by 0.5in
  - \global\outervsize=\vsize
  - \global\advance\outervsize by 0.6in
  - \global\pagewidth=\hsize
  - \global\pageheight=\vsize
  - \global\normaloffset= #4
  - \global\bindingoffset= #5}
  +\def\afourpaper{{\globaldefs = 1
  +  \parskip = 3pt plus 2pt minus 1pt
  +  \textleading = 13.2pt
  +  %
  +  % Double-side printing via postscript on Laserjet 4050
  +  % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm.
  +  % To change the settings for a different printer or situation, adjust
  +  % \normaloffset until the front-side and back-side texts align.  Then
  +  % do the same for \bindingoffset.  You can set these for testing in
  +  % your texinfo source file like this:
  +  % @tex
  +  % \global\normaloffset = -6mm
  +  % \global\bindingoffset = 10mm
  +  % @end tex
  +  \internalpagesizes{51\baselineskip}{160mm}
  +                    {\voffset}{\hoffset}%
  +                    {\bindingoffset}{44pt}%
  +                    {297mm}{210mm}%
  +  %
  +  \tolerance = 700
  +  \hfuzz = 1pt
  +  \contentsrightmargin = 0pt
  +  \defbodyindent = 5mm
  +}}
  +
  +% Use @afivepaper to print on European A5 paper.
  +% From address@hidden, 2 July 2000.
  +% He also recommends making @example and @lisp be small.
  +\def\afivepaper{{\globaldefs = 1
  +  \parskip = 2pt plus 1pt minus 0.1pt
  +  \textleading = 12.5pt
  +  %
  +  \internalpagesizes{160mm}{120mm}%
  +                    {\voffset}{\hoffset}%
  +                    {\bindingoffset}{8pt}%
  +                    {210mm}{148mm}%
  +  %
  +  \lispnarrowing = 0.2in
  +  \tolerance = 800
  +  \hfuzz = 1.2pt
  +  \contentsrightmargin = 0pt
  +  \defbodyindent = 2mm
  +  \tableindent = 12mm
  +}}
  +
  +% A specific text layout, 24x15cm overall, intended for A4 paper.
  +\def\afourlatex{{\globaldefs = 1
  +  \afourpaper
  +  \internalpagesizes{237mm}{150mm}%
  +                    {\voffset}{4.6mm}%
  +                    {\bindingoffset}{7mm}%
  +                    {297mm}{210mm}%
  +  %
  +  % Must explicitly reset to 0 because we call \afourpaper.
  +  \globaldefs = 0
  +}}
   
  -% This layout is compatible with Latex on A4 paper.
  +% Use @afourwide to print on A4 paper in landscape format.
  +\def\afourwide{{\globaldefs = 1
  +  \afourpaper
  +  \internalpagesizes{241mm}{165mm}%
  +                    {\voffset}{-2.95mm}%
  +                    {\bindingoffset}{7mm}%
  +                    {297mm}{210mm}%
  +  \globaldefs = 0
  +}}
   
  -\def\afourlatex{\changepagesizes{22cm}{15cm}{7mm}{4.6mm}{5mm}}
  +% @pagesizes TEXTHEIGHT[,TEXTWIDTH]
  +% Perhaps we should allow setting the margins, \topskip, \parskip,
  +% and/or leading, also. Or perhaps we should compute them somehow.
  +%
  +\parseargdef\pagesizes{\pagesizesyyy #1,,\finish}
  +\def\pagesizesyyy#1,#2,#3\finish{{%
  +  \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
  +  \globaldefs = 1
  +  %
  +  \parskip = 3pt plus 2pt minus 1pt
  +  \setleading{\textleading}%
  +  %
  +  \dimen0 = #1
  +  \advance\dimen0 by \voffset
  +  %
  +  \dimen2 = \hsize
  +  \advance\dimen2 by \normaloffset
  +  %
  +  \internalpagesizes{#1}{\hsize}%
  +                    {\voffset}{\normaloffset}%
  +                    {\bindingoffset}{44pt}%
  +                    {\dimen0}{\dimen2}%
  +}}
  +
  +% Set default to letter.
  +%
  +\letterpaper
  +
  +
  +\message{and turning on texinfo input format.}
   
   % Define macros to output various characters with catcode for normal text.
   \catcode`\"=\other
  @@ -4235,6 +7057,7 @@
   \catcode`\<=\other
   \catcode`\>=\other
   \catcode`\+=\other
  +\catcode`\$=\other
   \def\normaldoublequote{"}
   \def\normaltilde{~}
   \def\normalcaret{^}
  @@ -4243,9 +7066,10 @@
   \def\normalless{<}
   \def\normalgreater{>}
   \def\normalplus{+}
  +\def\normaldollar{$}%$ font-lock fix
   
  -% This macro is used to make a character print one way in ttfont
  -% where it can probably just be output, and another way in other fonts,
  +% This macro is used to make a character print one way in \tt
  +% (where it can probably be output as-is), and another way in other fonts,
   % where something hairier probably needs to be done.
   %
   % #1 is what to print if we are indeed using \tt; #2 is what to print
  @@ -4253,7 +7077,13 @@
   % interword stretch (and shrink), and it is reasonable to expect all
   % typewriter fonts to have this, we can check that font parameter.
   %
  -\def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}
  +\def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi}
  +
  +% Same as above, but check for italic font.  Actually this also catches
  +% non-italic slanted fonts since it is impossible to distinguish them from
  +% italic fonts.  But since this is only used by $ and it uses \sl anyway
  +% this is not a problem.
  +\def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
   
   % Turn off all special characters except @
   % (and those which the user can use as if they were ordinary).
  @@ -4261,28 +7091,22 @@
   % use math or other variants that look better in normal text.
   
   \catcode`\"=\active
  -\def\activedoublequote{{\tt \char '042}}
  +\def\activedoublequote{{\tt\char34}}
   \let"=\activedoublequote
   \catcode`\~=\active
  -\def~{{\tt \char '176}}
  +\def~{{\tt\char126}}
   \chardef\hat=`\^
   \catcode`\^=\active
   \def^{{\tt \hat}}
   
   \catcode`\_=\active
   \def_{\ifusingtt\normalunderscore\_}
  +\let\realunder=_
   % Subroutine for the previous macro.
  -\def\_{\lvvmode \kern.06em \vbox{\hrule width.3em height.1ex}}
  -
  -% \lvvmode is equivalent in function to \leavevmode.
  -% Using \leavevmode runs into trouble when written out to
  -% an index file due to the expansion of \leavevmode into ``\unhbox
  -% address@hidden'' ---which looks to TeX like ``\unhbox \voidb\x'' due to our
  -% magic tricks with @.
  -\def\lvvmode{\vbox to 0pt{}}
  +\def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }
   
   \catcode`\|=\active
  -\def|{{\tt \char '174}}
  +\def|{{\tt\char124}}
   \chardef \less=`\<
   \catcode`\<=\active
   \def<{{\tt \less}}
  @@ -4291,54 +7115,64 @@
   \def>{{\tt \gtr}}
   \catcode`\+=\active
   \def+{{\tt \char 43}}
  -%\catcode 27=\active
  -%\def^^[{$\diamondsuit$}
  +\catcode`\$=\active
  +\def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
   
  -% Set up an active definition for =, but don't enable it most of the time.
  -{\catcode`\==\active
  -\global\def={{\tt \char 61}}}
  +% If a .fmt file is being used, characters that might appear in a file
  +% name cannot be active until we have parsed the command line.
  +% So turn them off again, and have \everyjob (or @setfilename) turn them on.
  +% \otherifyactive is called near the end of this file.
  +\def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
   
   address@hidden
   
  -% \rawbackslashxx output one backslash character in current font
  -\global\chardef\rawbackslashxx=`\\
  -%{\catcode`\\=\other
  address@hidden@rawbackslashxx{\}}
  -
  -% \rawbackslash redefines \ as input to do \rawbackslashxx.
  +% \backslashcurfont outputs one backslash character in current font,
  +% as in \char`\\.
  +\global\chardef\backslashcurfont=`\\
  +\global\let\rawbackslashxx=\backslashcurfont  % let existing .??s files work
  +
  +% \rawbackslash defines an active \ to do \backslashcurfont.
  +% \otherbackslash defines an active \ to be a literal `\' character with
  +% catcode other.
   {\catcode`\\=\active
  address@hidden@address@hidden@rawbackslashxx }}
  + @address@hidden@address@hidden
  + @address@hidden@address@hidden
  +}
   
  -% \normalbackslash outputs one backslash in fixed width font.
  -\def\normalbackslash{{\tt\rawbackslashxx}}
  +% \realbackslash is an actual character `\' with catcode other, and
  +% \doublebackslash is two of them (for the pdf outlines).
  +{\catcode`\\=\other @address@hidden @address@hidden
   
  -% Say @foo, not \foo, in error messages.
  -\escapechar=`\@
  +% \normalbackslash outputs one backslash in fixed width font.
  +\def\normalbackslash{{\tt\backslashcurfont}}
   
  -% \catcode 17=0   % Define control-q
   \catcode`\\=\active
   
   % Used sometimes to turn off (effectively) the active characters
   % even after parsing them.
  address@hidden@address@hidden"address@hidden
  address@hidden@realbackslash
  address@hidden@normaltilde
  address@hidden@normalcaret
  address@hidden@normalunderscore
  address@hidden|address@hidden
  address@hidden<address@hidden
  address@hidden>address@hidden
  address@hidden@normalplus}
  -
  address@hidden@address@hidden"address@hidden
  address@hidden@normalbackslash
  address@hidden@normaltilde
  address@hidden@normalcaret
  address@hidden@normalunderscore
  address@hidden|address@hidden
  address@hidden<address@hidden
  address@hidden>address@hidden
  address@hidden@normalplus}
  address@hidden@turnoffactive{%
  +  @let"address@hidden
  +  @address@hidden
  +  @address@hidden
  +  @address@hidden
  +  @address@hidden
  +  @let|address@hidden
  +  @let<address@hidden
  +  @let>address@hidden
  +  @address@hidden
  +  @address@hidden %$ font-lock fix
  +  @unsepspaces
  +}
  +
  +% Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of
  +% the literal character `\'.  (Thus, \ is not expandable when this is in
  +% effect.)
  +%
  address@hidden@address@hidden @address@hidden
  +
  +% Make _ and + \other characters, temporarily.
  +% This is canceled by @fixbackslash.
  address@hidden
   
   % If a .fmt file is being used, we don't want the `\input texinfo' to show 
up.
   % That is what \eatinput is for; after that, the `\' should revert to 
printing
  @@ -4350,16 +7184,34 @@
   % On the other hand, perhaps the file did not have a `\input texinfo'. Then
   % the first `\{ in the file would cause an error. This macro tries to fix
   % that, assuming it is called before the first `\' could plausibly occur.
  +% Also turn back on active characters that might appear in the input
  +% file name, in case not using a pre-dumped format.
   %
  address@hidden@address@hidden@eatinput @let\ = @normalbackslash @fi}
  address@hidden@fixbackslash{%
  +  @address@hidden @let\ = @normalbackslash @fi
  +  @address@hidden
  +  @address@hidden@active
  +}
  +
  +% Say @foo, not \foo, in error messages.
  address@hidden = `@@
   
  -%% These look ok in all fonts, so just make them not special.  The @rm below
  -%% makes sure that the current font starts out as the newly loaded cmr10
  address@hidden@address@hidden @address@hidden@other @catcode`@&address@hidden 
@address@hidden@other
  +% These look ok in all fonts, so just make them not special.
  address@hidden@& = @other
  address@hidden@# = @other
  address@hidden@% = @other
   
  address@hidden
  address@hidden
   
   @c Local variables:
  address@hidden eval: (add-hook 'write-file-hooks 'time-stamp)
   @c page-delimiter: "^\\\\message"
  address@hidden time-stamp-start: "def\\\\texinfoversion{"
  address@hidden time-stamp-format: "%:y-%02m-%02d.%02H"
  address@hidden time-stamp-end: "}"
   @c End:
  +
  address@hidden vim:sw=2:
  +
  address@hidden
  +   arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115
  address@hidden ignore
  
  
  --- orig/doc/version.texi
  +++ mod/doc/version.texi
  @@ -1,3 +1,3 @@
  address@hidden EDITION 1.4.2a
  address@hidden EDITION 1.4.3
   @set UPDATED March 2005
  address@hidden VERSION 1.4.2a
  address@hidden VERSION 1.4.3
  
  
  --- orig/install-sh
  +++ mod/install-sh
  @@ -1,23 +1,52 @@
   #!/bin/sh
  -#
   # install - install a program, script, or datafile
  -# This comes from X11R5.
  +
  +scriptversion=2005-02-02.21
  +
  +# This originates from X11R5 (mit/util/scripts/install.sh), which was
  +# later released in X11R6 (xc/config/util/install.sh) with the
  +# following copyright and license.
  +#
  +# Copyright (C) 1994 X Consortium
  +#
  +# Permission is hereby granted, free of charge, to any person obtaining a 
copy
  +# of this software and associated documentation files (the "Software"), to
  +# deal in the Software without restriction, including without limitation the
  +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  +# sell copies of the Software, and to permit persons to whom the Software is
  +# furnished to do so, subject to the following conditions:
  +#
  +# The above copyright notice and this permission notice shall be included in
  +# all copies or substantial portions of the Software.
  +#
  +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
THE
  +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
IN
  +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
CONNEC-
  +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  +#
  +# Except as contained in this notice, the name of the X Consortium shall not
  +# be used in advertising or otherwise to promote the sale, use or other deal-
  +# ings in this Software without prior written authorization from the X 
Consor-
  +# tium.
  +#
  +#
  +# FSF changes to this file are in the public domain.
   #
   # Calling this script install-sh is preferred over install.sh, to prevent
   # `make' implicit rules from creating a file called install from it
   # when there is no Makefile.
   #
   # This script is compatible with the BSD install script, but was written
  -# from scratch.
  -#
  -
  +# from scratch.  It can only install one file at a time, a restriction
  +# shared with many OS's install programs.
   
   # set DOITPROG to echo to test this script
   
   # Don't use :- since 4.3BSD and earlier shells don't like it.
   doit="${DOITPROG-}"
   
  -
   # put in absolute paths if you don't have them in your path; or use env. 
vars.
   
   mvprog="${MVPROG-mv}"
  @@ -29,210 +58,266 @@
   rmprog="${RMPROG-rm}"
   mkdirprog="${MKDIRPROG-mkdir}"
   
  -tranformbasename=""
  -transform_arg=""
  -instcmd="$mvprog"
   chmodcmd="$chmodprog 0755"
  -chowncmd=""
  -chgrpcmd=""
  -stripcmd=""
  +chowncmd=
  +chgrpcmd=
  +stripcmd=
   rmcmd="$rmprog -f"
   mvcmd="$mvprog"
  -src=""
  -dst=""
  -dir_arg=""
  -
  -while [ x"$1" != x ]; do
  -    case $1 in
  -     -c) instcmd="$cpprog"
  -         shift
  -         continue;;
  -
  -     -d) dir_arg=true
  -         shift
  -         continue;;
  -
  -     -m) chmodcmd="$chmodprog $2"
  -         shift
  -         shift
  -         continue;;
  -
  -     -o) chowncmd="$chownprog $2"
  -         shift
  -         shift
  -         continue;;
  -
  -     -g) chgrpcmd="$chgrpprog $2"
  -         shift
  -         shift
  -         continue;;
  -
  -     -s) stripcmd="$stripprog"
  -         shift
  -         continue;;
  -
  -     -t=*) transformarg=`echo $1 | sed 's/-t=//'`
  -         shift
  -         continue;;
  -
  -     -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
  -         shift
  -         continue;;
  -
  -     *)  if [ x"$src" = x ]
  -         then
  -             src=$1
  -         else
  -             # this colon is to work around a 386BSD /bin/sh bug
  -             :
  -             dst=$1
  -         fi
  -         shift
  -         continue;;
  -    esac
  -done
  -
  -if [ x"$src" = x ]
  -then
  -     echo "install:  no input file specified"
  -     exit 1
  -else
  -     true
  -fi
  -
  -if [ x"$dir_arg" != x ]; then
  -     dst=$src
  -     src=""
  -     
  -     if [ -d $dst ]; then
  -             instcmd=:
  -     else
  -             instcmd=mkdir
  -     fi
  -else
  -
  -# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
  -# might cause directories to be created, which would be especially bad 
  -# if $src (and thus $dsttmp) contains '*'.
  -
  -     if [ -f $src -o -d $src ]
  -     then
  -             true
  -     else
  -             echo "install:  $src does not exist"
  -             exit 1
  -     fi
  -     
  -     if [ x"$dst" = x ]
  -     then
  -             echo "install:  no destination specified"
  -             exit 1
  -     else
  -             true
  -     fi
  -
  -# If destination is a directory, append the input filename; if your system
  -# does not like double slashes in filenames, you may need to add some logic
  -
  -     if [ -d $dst ]
  -     then
  -             dst="$dst"/`basename $src`
  -     else
  -             true
  -     fi
  -fi
  -
  -## this sed command emulates the dirname command
  -dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
  -
  -# Make sure that the destination directory exists.
  -#  this part is taken from Noah Friedman's mkinstalldirs script
  -
  -# Skip lots of stat calls in the usual case.
  -if [ ! -d "$dstdir" ]; then
  -defaultIFS=' 
  -'
  -IFS="${IFS-${defaultIFS}}"
  -
  -oIFS="${IFS}"
  -# Some sh's can't handle IFS=/ for some reason.
  -IFS='%'
  -set - `echo ${dstdir} | sed -e 's@/@address@hidden' -e 'address@hidden@/@'`
  -IFS="${oIFS}"
  +src=
  +dst=
  +dir_arg=
  +dstarg=
  +no_target_directory=
  +
  +usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
  +   or: $0 [OPTION]... SRCFILES... DIRECTORY
  +   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
  +   or: $0 [OPTION]... -d DIRECTORIES...
  +
  +In the 1st form, copy SRCFILE to DSTFILE.
  +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
  +In the 4th, create DIRECTORIES.
  +
  +Options:
  +-c         (ignored)
  +-d         create directories instead of installing files.
  +-g GROUP   $chgrpprog installed files to GROUP.
  +-m MODE    $chmodprog installed files to MODE.
  +-o USER    $chownprog installed files to USER.
  +-s         $stripprog installed files.
  +-t DIRECTORY  install into DIRECTORY.
  +-T         report an error if DSTFILE is a directory.
  +--help     display this help and exit.
  +--version  display version info and exit.
  +
  +Environment variables override the default commands:
  +  CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
  +"
  +
  +while test -n "$1"; do
  +  case $1 in
  +    -c) shift
  +        continue;;
  +
  +    -d) dir_arg=true
  +        shift
  +        continue;;
  +
  +    -g) chgrpcmd="$chgrpprog $2"
  +        shift
  +        shift
  +        continue;;
  +
  +    --help) echo "$usage"; exit $?;;
  +
  +    -m) chmodcmd="$chmodprog $2"
  +        shift
  +        shift
  +        continue;;
  +
  +    -o) chowncmd="$chownprog $2"
  +        shift
  +        shift
  +        continue;;
  +
  +    -s) stripcmd=$stripprog
  +        shift
  +        continue;;
   
  -pathcomp=''
  +    -t) dstarg=$2
  +     shift
  +     shift
  +     continue;;
   
  -while [ $# -ne 0 ] ; do
  -     pathcomp="${pathcomp}${1}"
  +    -T) no_target_directory=true
        shift
  +     continue;;
   
  -     if [ ! -d "${pathcomp}" ] ;
  -        then
  -             $mkdirprog "${pathcomp}"
  -     else
  -             true
  -     fi
  +    --version) echo "$0 $scriptversion"; exit $?;;
   
  -     pathcomp="${pathcomp}/"
  +    *)  # When -d is used, all remaining arguments are directories to create.
  +     # When -t is used, the destination is already specified.
  +     test -n "$dir_arg$dstarg" && break
  +        # Otherwise, the last argument is the destination.  Remove it from 
address@hidden
  +     for arg
  +     do
  +          if test -n "$dstarg"; then
  +         # $@ is not empty: it contains at least $arg.
  +         set fnord "$@" "$dstarg"
  +         shift # fnord
  +       fi
  +       shift # arg
  +       dstarg=$arg
  +     done
  +     break;;
  +  esac
   done
  -fi
  -
  -if [ x"$dir_arg" != x ]
  -then
  -     $doit $instcmd $dst &&
  -
  -     if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
  -     if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
  -     if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
  -     if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
  -else
  -
  -# If we're going to rename the final executable, determine the name now.
  -
  -     if [ x"$transformarg" = x ] 
  -     then
  -             dstfile=`basename $dst`
  -     else
  -             dstfile=`basename $dst $transformbasename | 
  -                     sed $transformarg`$transformbasename
  -     fi
  -
  -# don't allow the sed command to completely eliminate the filename
  -
  -     if [ x"$dstfile" = x ] 
  -     then
  -             dstfile=`basename $dst`
  -     else
  -             true
  -     fi
  -
  -# Make a temp file name in the proper directory.
  -
  -     dsttmp=$dstdir/#inst.$$#
   
  -# Move or copy the file name to the temp name
  -
  -     $doit $instcmd $src $dsttmp &&
  -
  -     trap "rm -f ${dsttmp}" 0 &&
  -
  -# and set any options; do chmod last to preserve setuid bits
  -
  -# If any of these fail, we abort the whole thing.  If we want to
  -# ignore errors from any of these, just make sure not to ignore
  -# errors from the above "$doit $instcmd $src $dsttmp" command.
  -
  -     if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
  -     if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
  -     if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
  -     if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
  -
  -# Now rename the file to the real destination.
  -
  -     $doit $rmcmd -f $dstdir/$dstfile &&
  -     $doit $mvcmd $dsttmp $dstdir/$dstfile 
  +if test -z "$1"; then
  +  if test -z "$dir_arg"; then
  +    echo "$0: no input file specified." >&2
  +    exit 1
  +  fi
  +  # It's OK to call `install-sh -d' without argument.
  +  # This can happen when creating conditional directories.
  +  exit 0
  +fi
   
  -fi &&
  +for src
  +do
  +  # Protect names starting with `-'.
  +  case $src in
  +    -*) src=./$src ;;
  +  esac
  +
  +  if test -n "$dir_arg"; then
  +    dst=$src
  +    src=
  +
  +    if test -d "$dst"; then
  +      mkdircmd=:
  +      chmodcmd=
  +    else
  +      mkdircmd=$mkdirprog
  +    fi
  +  else
  +    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
  +    # might cause directories to be created, which would be especially bad
  +    # if $src (and thus $dsttmp) contains '*'.
  +    if test ! -f "$src" && test ! -d "$src"; then
  +      echo "$0: $src does not exist." >&2
  +      exit 1
  +    fi
  +
  +    if test -z "$dstarg"; then
  +      echo "$0: no destination specified." >&2
  +      exit 1
  +    fi
  +
  +    dst=$dstarg
  +    # Protect names starting with `-'.
  +    case $dst in
  +      -*) dst=./$dst ;;
  +    esac
   
  +    # If destination is a directory, append the input filename; won't work
  +    # if double slashes aren't ignored.
  +    if test -d "$dst"; then
  +      if test -n "$no_target_directory"; then
  +     echo "$0: $dstarg: Is a directory" >&2
  +     exit 1
  +      fi
  +      dst=$dst/`basename "$src"`
  +    fi
  +  fi
  +
  +  # This sed command emulates the dirname command.
  +  dstdir=`echo "$dst" | sed -e 's,/*$,,;s,[^/]*$,,;s,/*$,,;s,^$,.,'`
  +
  +  # Make sure that the destination directory exists.
  +
  +  # Skip lots of stat calls in the usual case.
  +  if test ! -d "$dstdir"; then
  +    defaultIFS='
  +      '
  +    IFS="${IFS-$defaultIFS}"
  +
  +    oIFS=$IFS
  +    # Some sh's can't handle IFS=/ for some reason.
  +    IFS='%'
  +    set x `echo "$dstdir" | sed -e 's@/@address@hidden' -e 
'address@hidden@/@'`
  +    shift
  +    IFS=$oIFS
  +
  +    pathcomp=
  +
  +    while test $# -ne 0 ; do
  +      pathcomp=$pathcomp$1
  +      shift
  +      if test ! -d "$pathcomp"; then
  +        $mkdirprog "$pathcomp"
  +     # mkdir can fail with a `File exist' error in case several
  +     # install-sh are creating the directory concurrently.  This
  +     # is OK.
  +     test -d "$pathcomp" || exit
  +      fi
  +      pathcomp=$pathcomp/
  +    done
  +  fi
  +
  +  if test -n "$dir_arg"; then
  +    $doit $mkdircmd "$dst" \
  +      && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
  +      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
  +      && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
  +      && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
  +
  +  else
  +    dstfile=`basename "$dst"`
  +
  +    # Make a couple of temp file names in the proper directory.
  +    dsttmp=$dstdir/_inst.$$_
  +    rmtmp=$dstdir/_rm.$$_
  +
  +    # Trap to clean up those temp files at exit.
  +    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
  +    trap '(exit $?); exit' 1 2 13 15
  +
  +    # Copy the file name to the temp name.
  +    $doit $cpprog "$src" "$dsttmp" &&
  +
  +    # and set any options; do chmod last to preserve setuid bits.
  +    #
  +    # If any of these fail, we abort the whole thing.  If we want to
  +    # ignore errors from any of these, just make sure not to ignore
  +    # errors from the above "$doit $cpprog $src $dsttmp" command.
  +    #
  +    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
  +      && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
  +      && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
  +      && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
  +
  +    # Now rename the file to the real destination.
  +    { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
  +      || {
  +        # The rename failed, perhaps because mv can't rename something else
  +        # to itself, or perhaps because mv is so ancient that it does not
  +        # support -f.
  +
  +        # Now remove or move aside any old file at destination location.
  +        # We try this two ways since rm can't unlink itself on some
  +        # systems and the destination file might be busy for other
  +        # reasons.  In this case, the final cleanup might fail but the new
  +        # file should still install successfully.
  +        {
  +          if test -f "$dstdir/$dstfile"; then
  +            $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
  +            || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
  +            || {
  +              echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
  +              (exit 1); exit 1
  +            }
  +          else
  +            :
  +          fi
  +        } &&
  +
  +        # Now rename the file to the real destination.
  +        $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
  +      }
  +    }
  +  fi || { (exit 1); exit 1; }
  +done
   
  -exit 0
  +# The final little trick to "correctly" pass the exit status to the exit 
trap.
  +{
  +  (exit 0); exit 0
  +}
  +
  +# Local variables:
  +# eval: (add-hook 'write-file-hooks 'time-stamp)
  +# time-stamp-start: "scriptversion="
  +# time-stamp-format: "%:y-%02m-%02d.%02H"
  +# time-stamp-end: "$"
  +# End:
  
  
  --- orig/stamp-h.in
  +++ mod/stamp-h.in
  @@ -1 +1 @@
  -Thu Feb  3 17:14:59 GMT 2005
  +Thu Mar 31 12:31:57 BST 2005
  
  
  
  * added files
  
  --- /dev/null
  +++ 
/Users/gary/devel/savannah/m4--release--1.4/,,address@hidden/new-files-archive/./.arch-ids/Makefile.maint.id
  @@ -0,0 +1 @@
  +Gary V. Vaughan <address@hidden> Thu Mar 31 12:44:15 2005 16667.0
  --- /dev/null
  +++ 
/Users/gary/devel/savannah/m4--release--1.4/,,address@hidden/new-files-archive/./Makefile.maint
  @@ -0,0 +1,215 @@
  +## Makefile.maint -- Makefile rules for libtool maintainers -*-Makefile-*-
  +##
  +## Copyright (C) 2004, 2005 Free Software Foundation
  +##
  +## This program is free software; you can redistribute it and/or modify
  +## it under the terms of the GNU General Public License as published by
  +## the Free Software Foundation; either version 2 of the License, or
  +## (at your option) any later version.
  +##
  +## This program is distributed in the hope that it will be useful,
  +## but WITHOUT ANY WARRANTY; without even the implied warranty of
  +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  +## GNU General Public License for more details.
  +##
  +## You should have received a copy of the GNU General Public License
  +## along with this program; see the file COPYING.  If not, write to
  +## the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  +## Boston, MA 02111-1307, USA.
  +
  +# Need various variables defined by configure, a lot easier to just
  +# include the Makefile than figure out a way to put them in here too
  +include Makefile
  +Makefile:
  +     @echo " *** Run maintainer rules from the build tree, with"
  +     @echo " *** \`make -f../Makefile.maint' for example, where"
  +     @echo " *** \`../' is the relative path back to the directory"
  +     @echo " *** that contains the \`Makefile.maint'.  Alternatively,"
  +     @echo " *** run \`./configure' in the source tree for an in"
  +     @echo " *** tree build."
  +     @exit 1
  +
  +TEXI2HTML = texi2html
  +
  +.PHONY: cvs-release
  +cvs-release: version-check prev-tarball cvs-news fetch cvs-commit cvs-dist 
deltas web-manual
  +     @tarname="$(PACKAGE)-$(VERSION).tar.gz"; \
  +     diffname="$(PACKAGE)-$(LASTRELEASE)-$(VERSION).diff.gz"; \
  +     xdeltaname="$(PACKAGE)-$(LASTRELEASE)-$(VERSION).xdelta"; \
  +     echo " *** Upload $$tarname, $$tarname.sig,";\
  +     echo " *** $$tarname.directive.asc, $$diffname,"; \
  +     echo " *** $$diffname.sig, $$diffname.directive.asc,"; \
  +     echo " *** $$xdeltaname, $$xdeltaname.sig and";\
  +     echo " *** $$xdeltaname.directive.asc to either"
  +     echo " *** /incoming/alpha or /incoming/ftp on ftp-upload.gnu.org."
  +     echo " *** You might need to upload manual.html to webcvs/libtool."
  +
  +.PHONY: version-check
  +version-check:
  +     @case $(VERSION) in \
  +     *[acegikmoqsuwy]) \
  +       echo "Version \`$(VERSION)' is not a releasable version, please 
read:"; \
  +       echo "    http://www.gnu.org/software/libtool/contribute.html";; \
  +       exit 1; \
  +       ;; \
  +     esac
  +
  +.PHONY: prev-tarball
  +prev-tarball:
  +## Make sure we have the previous release tarball in the tree.
  +     @if test -z "$(LASTRELEASE)"; \
  +             then echo "LASTRELEASE is not set"; exit 1; fi
  +     @ofile="$(PACKAGE)-$(LASTRELEASE).tar.gz"; \
  +     if test -f $$ofile; then :; \
  +     else echo "Cannot make deltas without $$ofile"; exit 1; fi
  +
  +# TSDEPS will be defined to TSDEPS_DIST at `make dist' time
  +TSDEPS =
  +TSDEPS_DIST = ChangeLog m4/libtool.m4
  +CVS = cvs # set it to `:' to avoid CVS operations
  +
  +.PHONY: timestamps update-timestamps
  +timestamps: update-timestamps
  +update-timestamps:
  +     @if (cd $(srcdir) && test -d CVS && \
  +         $(CVS) -n update $(TSDEPS_DIST) | grep '^M'); then \
  +             echo "Cannot make cvs-dist before commit"; exit 1; else :; fi
  +
  +
  +.PHONY: cvs-news
  +cvs-news:
  +## Make sure the NEWS file is up-to-date:
  +     @if sed '1,2d;3q' $(srcdir)/NEWS | grep -e "$(VERSION)" >/dev/null; \
  +     then :; \
  +     else \
  +       echo "NEWS not updated; not releasing" 1>&2; \
  +       exit 1; \
  +     fi
  +
  +## Program to use to fetch files.
  +WGET = wget
  +WGETSGO = $(WGET) http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~
  +
  +## Files that we fetch and which we compare against.
  +## FIXME should be a lot more here
  +FETCHFILES = \
  +./INSTALL \
  +./install-sh \
  +doc/texinfo.tex
  +
  +## Fetch the latest versions of files we care about.
  +.PHONY: fetch
  +fetch:
  +     rm -rf Fetchdir > /dev/null 2>&1
  +     mkdir Fetchdir
  +## If a get fails then that is a problem.
  +     (cd Fetchdir && \
  +     $(WGETSGO)/autoconf/autoconf/INSTALL; \
  +     $(WGETSGO)/automake/automake/lib/install-sh; \
  +     $(WGETSGO)/texinfo/texinfo/doc/texinfo.tex )
  +## Don't exit after test because we want to give as many errors as
  +## possible.
  +     @stat=0; for file in $(FETCHFILES); do \
  +       fetchedfile=Fetchdir/`echo $$file | sed 's,.*/,,g'`; \
  +       if diff -u $(srcdir)/$$file $$fetchedfile \
  +         >>Fetchdir/update.patch 2>/dev/null; then :; \
  +       else \
  +         stat=1; \
  +         echo "Updating $(srcdir)/$$file..."; \
  +         cp $$fetchedfile $(srcdir)/$$file; \
  +       fi; \
  +     done; \
  +     test $$stat = 1 && \
  +       echo "See Fetchdir/update.patch for a log of the changes."; \
  +     exit $$stat
  +
  +
  +GPG = gpg # set it to `:' to avoid gpg operations
  +
  +.PHONY: cvs-commit
  +cvs-commit: cvs-news
  +     cd $(srcdir) && $(SHELL) ./commit
  +
  +.PHONY: cvs-dist
  +cvs-dist: cvs-news timestamps
  +## Build the distribution:
  +     $(MAKE) distcheck
  +## Finally, if everything was successful, tag the release
  +     cd $(srcdir) \
  +       && $(CVS) -q tag `echo "release-$(VERSION)" | sed 's/\./-/g'`
  +## Generate signatures and directives for FSF ftp-upload:
  +     for suffix in .gz .bz2; do \
  +       ofile="$(PACKAGE)-$(VERSION).tar.$$suffix"; \
  +       $(GPG) --detach-sign $$ofile \
  +       && echo "directory: $(PACKAGE)" > $$ofile.directive \
  +       && $(GPG) --clearsign $$ofile.directive \
  +       && rm -f $$ofile.directive; \
  +     done
  +
  +.PHONY: new-tarball
  +new-tarball:
  +## Make sure we have the new release tarball in the tree.
  +     @ofile="$(PACKAGE)-$(VERSION).tar.gz"; \
  +     if test -f $$ofile; then :; \
  +     else echo "Cannot make deltas without $$ofile"; exit 1; fi
  +
  +.PHONY: got-xdelta
  +got-xdelta:
  +## Make sure xdelta exists;
  +     @if ($(XDELTA) --version 2>&1 | grep version)>/dev/null 2>/dev/null; \
  +     then :;\
  +     else \
  +       echo "Get xdelta from http://sourceforge.net/projects/xdelta.";; \
  +       exit 1; \
  +     fi
  +
  +.PHONY: deltas
  +deltas: delta-diff delta-xdelta
  +
  +DIFF = diff
  +DIFF_OPTIONS = -ruNp
  +
  +.PHONY: delta-diff
  +delta-diff: prev-tarball new-tarball
  +## Unpack the tarballs somewhere to diff them
  +     rm -rf delta-diff
  +     mkdir delta-diff
  +
  +     ofile="../$(PACKAGE)-$(LASTRELEASE)-$(VERSION).diff.gz"; \
  +     cd delta-diff \
  +     && tar xzf "../$(PACKAGE)-$(LASTRELEASE).tar.gz" \
  +     && tar xzf "../$(PACKAGE)-$(VERSION).tar.gz" \
  +     && $(DIFF) $(DIFF_OPTIONS) \
  +             $(PACKAGE)-$(LASTRELEASE) $(PACKAGE)-$(VERSION) \
  +             | GZIP=$(GZIP_ENV) gzip -c > $$ofile \
  +     && $(GPG) --detach-sign $$ofile \
  +     && echo "directory: $(PACKAGE)" > $$ofile.directive \
  +     && $(GPG) --clearsign $$ofile.directive \
  +     && rm -f $$ofile.directive
  +
  +     rm -rf delta-diff
  +
  +XDELTA = xdelta
  +XDELTA_OPTIONS = -9
  +
  +.PHONY: delta-xdelta
  +delta-xdelta: prev-tarball new-tarball got-xdelta
  +## Generate the delta file (xdelta has wierd exit statuses, so we need to
  +## add some shell code to keep make happy), and then generate the signatures
  +## for FSF ftp-upload:
  +     ofile="$(PACKAGE)-$(LASTRELEASE)-$(VERSION).xdelta"; \
  +     ( test -z `$(XDELTA) delta $(XDELTA_OPTIONS) \
  +         $(PACKAGE)-$(LASTRELEASE).tar.gz $(PACKAGE)-$(VERSION).tar.gz \
  +         $$ofile 2>&1` \
  +       && : ) \
  +     && $(GPG) --detach-sign $$ofile \
  +     && echo "directory: $(PACKAGE)" > $$ofile.directive \
  +     && $(GPG) --clearsign $$ofile.directive \
  +     && rm -f $$ofile.directive
  +
  +.PHONY: web-manual
  +web-manual:
  +     @$(LN_S) $(top_srcdir)/doc/libtool.texi doc/manual.texi
  +     $(TEXI2HTML) -I doc -monolithic -number -verbose doc/manual.texi
  +     @mv doc/manual.html manual.html
  +     @rm -f doc/manual.texi
  
- -- 
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook
_________________________________________________________
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