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1Bison News
2----------
3
4Changes in version 1.28a:
5
6* Russian translation added.
7
8* NLS support updated; should hopefully be less troublesome.
9
10* Added the old Bison reference card.
11
12* Added `--locations' and `%locations'.
13
14* Added `-S' and `--skeleton'.
15
16* Special characters are escaped when output. This solves the problems
17 of the #line lines with path names including backslashes.
18
19* New directives.
20 `%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
21 `%debug'.
22\f
23Changes in version 1.28:
24
25* Should compile better now with K&R compilers.
26
27* Added NLS.
28
29* Fixed a problem with escaping the double quote character.
30
31* There is now a FAQ.
32\f
33Changes in version 1.27:
34
35* The make rule which prevented bison.simple from being created on
36 some systems has been fixed.
37\f
38Changes in version 1.26:
39
40* Bison now uses automake.
41
42* New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>.
43
44* Token numbers now start at 257 as previously documented, not 258.
45
46* Bison honors the TMPDIR environment variable.
47
48* A couple of buffer overruns have been fixed.
49
50* Problems when closing files should now be reported.
51
52* Generated parsers should now work even on operating systems which do
53 not provide alloca().
54\f
55Changes in version 1.25:
56
57* Errors in the input grammar are not fatal; Bison keeps reading
58the grammar file, and reports all the errors found in it.
59
60* Tokens can now be specified as multiple-character strings: for
61example, you could use "<=" for a token which looks like <=, instead
62of chosing a name like LESSEQ.
63
64* The %token_table declaration says to write a table of tokens (names
65and numbers) into the parser file. The yylex function can use this
66table to recognize multiple-character string tokens, or for other
67purposes.
68
69* The %no_lines declaration says not to generate any #line preprocessor
70directives in the parser file.
71
72* The %raw declaration says to use internal Bison token numbers, not
73Yacc-compatible token numbers, when token names are defined as macros.
74
75* The --no-parser option produces the parser tables without including
76the parser engine; a project can now use its own parser engine.
77The actions go into a separate file called NAME.act, in the form of
78a switch statement body.
79\f
80Changes in version 1.23:
81
82The user can define YYPARSE_PARAM as the name of an argument to be
83passed into yyparse. The argument should have type void *. It should
84actually point to an object. Grammar actions can access the variable
85by casting it to the proper pointer type.
86
87Line numbers in output file corrected.
88\f
89Changes in version 1.22:
90
91--help option added.
92\f
93Changes in version 1.20:
94
95Output file does not redefine const for C++.