NEWS

   1 Bison News
   2 ----------
   3
   4 Changes in version 1.49a:
   5
   6 * items overflow
   7   Bison no longer dumps core when there are too many items, it just
   8   dies.
   9
  10 \f
  11 Changes in version 1.30:
  12
  13 * `--defines' and `--graph' have now an optionnal argument which is the
  14   output file name. `-d' and `-g' do not change, they do not take any
  15   argument.
  16
  17 * `%source_extension' and `%header_extension' are removed, failed
  18   experiment.
  19
  20 * Portability fixes.
  21 \f
  22 Changes in version 1.29, 2001-09-07:
  23
  24 * The output file does not define const, as this caused problems when used
  25   with common autoconfiguration schemes.  If you still use ancient compilers
  26   that lack const, compile with the equivalent of the C compiler option
  27   `-Dconst='.  autoconf's AC_C_CONST macro provides one way to do this.
  28
  29 * Added `-g' and `--graph'.
  30
  31 * The Bison manual is now distributed under the terms of the GNU FDL.
  32
  33 * The input and the output files has automatically a similar extension.
  34
  35 * Russian translation added.
  36
  37 * NLS support updated; should hopefully be less troublesome.
  38
  39 * Added the old Bison reference card.
  40
  41 * Added `--locations' and `%locations'.
  42
  43 * Added `-S' and `--skeleton'.
  44
  45 * `%raw', `-r', `--raw' is disabled.
  46
  47 * Special characters are escaped when output.  This solves the problems
  48   of the #line lines with path names including backslashes.
  49
  50 * New directives.
  51   `%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose',
  52   `%debug', `%source_extension' and `%header_extension'.
  53
  54 * @$
  55   Automatic location tracking.
  56 \f
  57 Changes in version 1.28, 1999-07-06:
  58
  59 * Should compile better now with K&R compilers.
  60
  61 * Added NLS.
  62
  63 * Fixed a problem with escaping the double quote character.
  64
  65 * There is now a FAQ.
  66 \f
  67 Changes in version 1.27:
  68
  69 * The make rule which prevented bison.simple from being created on
  70   some systems has been fixed.
  71 \f
  72 Changes in version 1.26:
  73
  74 * Bison now uses automake.
  75
  76 * New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>.
  77
  78 * Token numbers now start at 257 as previously documented, not 258.
  79
  80 * Bison honors the TMPDIR environment variable.
  81
  82 * A couple of buffer overruns have been fixed.
  83
  84 * Problems when closing files should now be reported.
  85
  86 * Generated parsers should now work even on operating systems which do
  87   not provide alloca().
  88 \f
  89 Changes in version 1.25, 1995-10-16:
  90
  91 * Errors in the input grammar are not fatal; Bison keeps reading
  92 the grammar file, and reports all the errors found in it.
  93
  94 * Tokens can now be specified as multiple-character strings: for
  95 example, you could use "<=" for a token which looks like <=, instead
  96 of chosing a name like LESSEQ.
  97
  98 * The %token_table declaration says to write a table of tokens (names
  99 and numbers) into the parser file.  The yylex function can use this
 100 table to recognize multiple-character string tokens, or for other
 101 purposes.
 102
 103 * The %no_lines declaration says not to generate any #line preprocessor
 104 directives in the parser file.
 105
 106 * The %raw declaration says to use internal Bison token numbers, not
 107 Yacc-compatible token numbers, when token names are defined as macros.
 108
 109 * The --no-parser option produces the parser tables without including
 110 the parser engine; a project can now use its own parser engine.
 111 The actions go into a separate file called NAME.act, in the form of
 112 a switch statement body.
 113 \f
 114 Changes in version 1.23:
 115
 116 The user can define YYPARSE_PARAM as the name of an argument to be
 117 passed into yyparse.  The argument should have type void *.  It should
 118 actually point to an object.  Grammar actions can access the variable
 119 by casting it to the proper pointer type.
 120
 121 Line numbers in output file corrected.
 122 \f
 123 Changes in version 1.22:
 124
 125 --help option added.
 126 \f
 127 Changes in version 1.20:
 128
 129 Output file does not redefine const for C++.
 130
 131 Local Variables:
 132 mode: outline
 133 End: