* data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to

[bison.git] / ChangeLog

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+2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
+       use during nondeterministic operation to track which stacks have
+       actually needed the current lookahead.
+       (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
+       Allocate, deallocate, resize, and otherwise shuffle space for
+       yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
+       (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
+       appropriately during nondeterministic operation.
+       (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
+       members to store the current lookahead to be used by the deferred
+       user action.
+       (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
+       from which the RHS is taken.  Set the lookahead members of the new
+       yySemanticOption according to the lookahead status for stack yyk.
+       (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
+       yyaddDeferredAction.
+       (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
+       members of yySemanticOption before invoking yyuserAction, and then set
+       them back to their current values afterward.
+       (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
+       (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
+       * tests/glr-regression.at: Remove `.' from the ends of recent test case
+       titles for consistency.
+       (Leaked merged semantic value if user action cuts parse): In order to
+       suppress lint warnings, use arguments in merge function, and assign
+       char value < 128 in main.
+       (Incorrect lookahead during deterministic GLR): New test case.
+       (Incorrect lookahead during nondeterministic GLR): New test case.
+
+2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept   
+       !yyvaluep as signal that no semantic value is available to print.
+       * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
+       to print a semantic value.
+
 2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        * tests/glr-regression.at: For consistency with my newer test cases,