[6528] tidy and update use of ISO-Latin

[Gavin D. Smith]

Revision: 6528
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=6528
Author:   gavin
Date:     2015-08-14 18:57:51 +0000 (Fri, 14 Aug 2015)
Log Message:
-----------
tidy and update use of ISO-Latin

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/doc/info-stnd.texi
    trunk/info/info-utils.c
    trunk/info/info-utils.h
    trunk/info/terminal.c

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog     2015-08-14 12:22:50 UTC (rev 6527)
+++ trunk/ChangeLog     2015-08-14 18:57:51 UTC (rev 6528)
@@ -1,5 +1,14 @@
 2015-08-14  Gavin Smith  <address@hidden>
 
+       * info/info-utils.c (printed_representation): Remove code 
+       looking at value of ISO_Latin_p, which doesn't do anything.  (It 
+       hasn't done much since the display routines became locale-aware.)
+       * info/terminal.c (ISO_Latin_p): Move declaration of variable to 
+       this file.
+       * info/info-stnd.texi (Variables) <ISO-Latin>: Update.
+
+2015-08-14  Gavin Smith  <address@hidden>
+
        * doc/texinfo.texi (Texinfo Mode): Move to an appendix.
        (Command Contexts): Make a top-level appendix.  Remove some 
        unnecessary words.

Modified: trunk/doc/info-stnd.texi
===================================================================
--- trunk/doc/info-stnd.texi    2015-08-14 12:22:50 UTC (rev 6527)
+++ trunk/doc/info-stnd.texi    2015-08-14 18:57:51 UTC (rev 6528)
@@ -2215,12 +2215,16 @@
 
 @item ISO-Latin
 @cindex ISO Latin characters
-When set to @code{On}, Info accepts and displays ISO Latin characters;
-the default is @code{Off}, i.e., an ASCII character set.
address@hidden tells Info that it is running in an environment where
-the European standard character set is in use, and allows you to input
-such characters to Info, as well as display them.
address@hidden Meta key sets eighth bit
+The default is @code{On}, which means that Info accepts and displays
+characters represented by bytes with values 128 and above, such as
+characters in the UTF-8 encoding or in various 8-bit ISO Latin
+characters, as well as allowing you to input such characters.
 
+The only reason to set this variable to @code{Off} would be if your
+terminal set the eighth bit of a byte to represent the Meta key being
+pressed.
+
 @item key-time
 @cindex slow network connections
 Length of time in milliseconds to wait for the next byte of a byte

Modified: trunk/info/info-utils.c
===================================================================
--- trunk/info/info-utils.c     2015-08-14 12:22:50 UTC (rev 6527)
+++ trunk/info/info-utils.c     2015-08-14 18:57:51 UTC (rev 6528)
@@ -43,10 +43,6 @@
 #define va_copy(ap1,ap2) memcpy((&ap1),(&ap2),sizeof(va_list))
 #endif
 
-/* When non-zero, various display and input functions handle ISO Latin
-   character sets correctly. */
-int ISO_Latin_p = 1;
-
 /* Variable which holds the most recent filename parsed as a result of
    calling info_parse_xxx (). */
 char *info_parsed_filename = NULL;
@@ -498,7 +494,6 @@
 printed_representation (mbi_iterator_t *iter, int *delim, size_t pl_chars,
                         size_t *pchars, size_t *pbytes) 
 {
-  int printable_limit = ISO_Latin_p ? 255 : 127;
   struct text_buffer *rep = &printed_rep;
 
   char *cur_ptr = (char *) mbi_cur_ptr (*iter);
@@ -564,14 +559,6 @@
       text_buffer_add_char (rep, *cur_ptr | 0x40);
       return text_buffer_base (rep);
     }
-  /* Show META-x as "\370".  */
-  else if (*(unsigned char *)cur_ptr > printable_limit)
-    {
-      *pchars = 4;
-      *pbytes = 4;
-      text_buffer_printf (rep, "\\%0o", *cur_ptr);
-      return text_buffer_base (rep);
-    }
   else if (*cur_ptr == DEL)
     {
       *pchars = 0;

Modified: trunk/info/info-utils.h
===================================================================
--- trunk/info/info-utils.h     2015-08-14 12:22:50 UTC (rev 6527)
+++ trunk/info/info-utils.h     2015-08-14 18:57:51 UTC (rev 6528)
@@ -30,10 +30,6 @@
 # include <iconv.h>
 #endif
 
-/* When non-zero, various display and input functions handle ISO Latin
-   character sets correctly. */
-extern int ISO_Latin_p;
-
 /* Variable which holds the most recent filename parsed as a result of
    calling info_parse_xxx (). */
 extern char *info_parsed_filename;

Modified: trunk/info/terminal.c
===================================================================
--- trunk/info/terminal.c       2015-08-14 12:22:50 UTC (rev 6527)
+++ trunk/info/terminal.c       2015-08-14 18:57:51 UTC (rev 6528)
@@ -647,6 +647,10 @@
     }
 }
 
+/* When non-zero, various display and input functions handle extended
+   character sets such as ISO Latin or UTF-8 correctly. */
+int ISO_Latin_p = 1;
+
 /* Initialize byte map read in get_input_key. */
 static void
 initialize_byte_map (void)