NEWS

   1 Bison News
   2 ----------
   3
   4 Changes in version 1.27:
   5
   6 * The make rule which prevented bison.simple from being created on
   7   some systems has been fixed.
   8 \f
   9 Changes in version 1.26:
  10
  11 * Bison now uses automake.
  12
  13 * New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>.
  14
  15 * Token numbers now start at 257 as previously documented, not 258.
  16
  17 * Bison honors the TMPDIR environment variable.
  18
  19 * A couple of buffer overruns have been fixed.
  20
  21 * Problems when closing files should now be reported.
  22
  23 * Generated parsers should now work even on operating systems which do
  24   not provide alloca().
  25 \f
  26 Changes in version 1.25:
  27
  28 * Errors in the input grammar are not fatal; Bison keeps reading
  29 the grammar file, and reports all the errors found in it.
  30
  31 * Tokens can now be specified as multiple-character strings: for
  32 example, you could use "<=" for a token which looks like <=, instead
  33 of chosing a name like LESSEQ.
  34
  35 * The %token_table declaration says to write a table of tokens (names
  36 and numbers) into the parser file.  The yylex function can use this
  37 table to recognize multiple-character string tokens, or for other
  38 purposes.
  39
  40 * The %no_lines declaration says not to generate any #line preprocessor
  41 directives in the parser file.
  42
  43 * The %raw declaration says to use internal Bison token numbers, not
  44 Yacc-compatible token numbers, when token names are defined as macros.
  45
  46 * The --no-parser option produces the parser tables without including
  47 the parser engine; a project can now use its own parser engine.
  48 The actions go into a separate file called NAME.act, in the form of
  49 a switch statement body.
  50 \f
  51 Changes in version 1.23:
  52
  53 The user can define YYPARSE_PARAM as the name of an argument to be
  54 passed into yyparse.  The argument should have type void *.  It should
  55 actually point to an object.  Grammar actions can access the variable
  56 by casting it to the proper pointer type.
  57
  58 Line numbers in output file corrected.
  59 \f
  60 Changes in version 1.22:
  61
  62 --help option added.
  63 \f
  64 Changes in version 1.20:
  65
  66 Output file does not redefine const for C++.