More fixes related to last two patches.

[bison.git] / ChangeLog

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+2009-08-25  Joel E. Denny  <jdenny@clemson.edu>
+
+       More fixes related to last two patches.
+       * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE
+       comments: zero indicates syntax error not default action.
+       * data/c.m4 (b4_table_value_equals): Comment that YYID must be
+       defined.
+       * data/glr.c (yyis_pact_ninf): Rename to...
+       (yypact_value_is_default): ... this.
+       (yyisDefaultedState): Update for rename.
+       (yyis_table_ninf): Rename to...
+       (yytable_value_is_error): ... this, and check for value zero
+       besides just YYTABLE_NINF.
+       (yygetLRActions): Check for default value from yypact.  It
+       appears that this check is always performed before this function
+       is invoked, and so adding the check here is probably redundant.
+       However, the code may evolve after this subtlety is forgotten.
+       Also, update for rename to yytable_value_is_error.  Because that
+       macro now checks for zero, a different but equivalent branch of
+       the if-then-else here is evaluated.
+       (yyreportSyntaxError): Update for rename to
+       yytable_value_is_error.  The zero condition was mishandled
+       before.
+       (yyrecoverSyntaxError): Update for renames.  No behavioral
+       changes.
+       * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
+       New function.
+       (yy_table_value_is_error_): New function.
+       (parse): Use new functions where possible.  No behavioral
+       changes.
+       (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
+       The zero condition was mishandled before.
+       * data/yacc.c (yyis_pact_ninf): Rename to...
+       (yypact_value_is_default): ... this.
+       (yyis_table_ninf): Rename to...
+       (yytable_value_is_error): ... this, and check for value zero
+       besides just YYTABLE_NINF.
+       (yysyntax_error): Update for rename to yytable_value_is_error.
+       The zero condition was mishandled before.
+       (yyparse): Update for renames.  No behavioral changes.
+       * src/tables.h: Improve comments about yypact, yytable, etc.
+       more.  Most importantly, say yytable value of zero means syntax
+       error not default action.
+
 2009-08-25  Joel E. Denny  <jdenny@clemson.edu>
 
        Fix %error-verbose for conflicts resolved by %nonassoc.