Name space cleanup in generated parser.

[bison.git] / ChangeLog

diff --git a/ChangeLog b/ChangeLog
index afc46aa4eefaad1d8920c5942b88bb99b5e115ae..164460e5fc155e7e614ac0a6e4af40b6effa1fe5 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,74 @@
+2001-11-29  Paul Eggert  <eggert@twinsun.com>
+
+       Name space cleanup in generated parser.
+
+       * doc/bison.texinfo (Bison Parser): Discuss system headers
+       and their effect on the user name space.
+
+       * src/bison.simple:
+       (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
+       YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
+       i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
+
+       (YYSIZE_T): New macro.  Use it instead of size_t, to avoid infringing
+       on user names when possible.
+
+       (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
+       Simplify test for whather <alloca.h> exists.
+
+       (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
+
+       (<stdio.h>): Include if YYDEBUG.
+
+       (yymemcpy): Renamed from __yy_memcpy.  Do not define unless
+       ! defined (yyoverflow) && ! defined (yymemcpy).
+
+       (yymemcpy, yyparse): Rename local variables as needed so that
+       they all begin with 'yy'.
+
+       (yystrlen, yystpcpy): New functions.
+
+       (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
+       All uses changed.
+
+       (yyparse): size_t -> YYSIZE_T.  Use yystrlen and yystpcpy
+       instead of relying on string.h functions.  Use YYSTACK_ALLOC
+       and YYSTACK_FREE instead of malloc and free.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+       * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
+       before their first uses.
+       (YYBISON, YYPURE): Move to the top of the output.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+       * tests/reduce.at (Useless Nonterminals): Fix.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+       * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
+       if body instead of `;' to pacify GCC's warnings.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+       Instead of mapping the LHS of unused rules to -1, keep the LHS
+       valid, but flag the rules as invalid.
+
+       * src/gram.h (rule_t): `useful' is a new member.
+       * src/print.c (print_grammar): Adjust.
+       * src/derives.c (set_derives): Likewise.
+       * src/reader.c (packgram, reduce_output): Likewise.
+       * src/reduce.c (reduce_grammar_tables): Likewise.
+       * tests/reduce.at (Underivable Rules, Useless Rules): New.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+       * src/reduce.c (reduce_output): Formatting changes.
+       * src/print.c (print_results, print_grammar): Likewise.
+       * tests/regression.at (Rule Line Numbers)
+       (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
+
 2001-11-30  Akim Demaille  <akim@epita.fr>
 
        * src/reduce.c (nonterminals_reduce): Instead of throwing away