"Douglas C. Schmidt" <address@hidden>

[Bruno Haible]

Hi,

You find gperf-3.0 at http://ftp.gnu.org/gnu/gperf/gperf-3.0.tar.gz
and mirrors of ftp.gnu.org.

New in 3.0:

* Added option --output that allows to specify the output file name.

* Some options have been renamed:
    --hash-fn-name=NAME     -->   --hash-function-name=NAME
    --lookup-fn-name=NAME   -->   --lookup-function-name=NAME
    --compare-strlen        -->   --compare-lengths
    --global                -->   --global-table
  The older variants are still supported for backward compatibility.

* The following options can now be specified inside the input file:
    %delimiters=DELIMITER-LIST
    %struct-type
    %ignore-case
    %language=LANGUAGE-NAME
    %define slot-name NAME
    %define initializer-suffix INITIALIZERS
    %define hash-function-name NAME
    %define lookup-function-name NAME
    %define class-name NAME
    %7bit
    %compare-lengths
    %compare-strncmp
    %readonly-tables
    %enum
    %includes
    %global-table
    %pic
    %define string-pool-name NAME
    %null-strings
    %define word-array-name NAME
    %switch=COUNT
    %omit-struct-type

* When the option -k is not given, the default key positions are now
  computed depending on the set of keywords.

* If the input file is given by name, the output file will now contain
  #line directives referring to the input file.

* Some keyword sets containing permutations, like { "xy", "yx", "xz", "zx" }
  or { "abc", "acb", "bca", "cab" }, are now handled by gperf without
  requiring the option -D.

* The generated table is usually much smaller than it was with earlier
  versions of gperf.

* Added option -m/--multiple-iterations that allows to further reduce the
  size of the generated table.

* When the search for a good hash function is not immediately successful,
  the table's size will grow as needed. Earlier versions of gperf bailed
  out with an "Internal error, duplicate hash code value".

* The options -f/--fast and -o/--occurrence-sort have no effect any more.

* Added options -P/--pic and --null-strings that optimize the generated code
  for use in shared libraries. -P/--pic does a perfect optimization but may
  require some small code changes (see the documentation for details), whereas
  --null-strings does only a half-hearted optimization but works without
  needing any change to surrounding code.

* Added option --ignore-case that produces a case independent lookup function.

* Bug fixes.


Thanks to Bruce Lilly and Ulrich Drepper for many valuable suggestions.


For existing users of gperf, it means you can drop most of the command
line options that were needed for gperf-2.7.2.

Enjoy!


                     Bruno