During deterministic GLR operation, user actions should be able to

[bison.git] / ChangeLog

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+2006-01-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       During deterministic GLR operation, user actions should be able to
+       influence the parse by changing yychar.  To make this easier to fix and
+       to make glr.c easier to evolve in general, don't maintain yytoken in
+       parallel with yychar; just compute yytoken when needed.
+       * tests/glr-regression.at (Incorrect lookahead during deterministic
+       GLR): Check that setting yychar in a user action has the intended
+       effect.
+       * data/glr.c (yyGLRStack): Remove yytokenp member.
+       (yyclearin): Don't set *yytokenp.
+       (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
+       yychar rather than *yytokenp to determine the current lookahead.
+       Compute yytoken locally when needed.
+       (yyparse): Likewise.  Remove the local yytoken that yytokenp used to
+       point to.
+
+       * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
+       after `--report' documentation.
+

 2006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
 
        * src/parse-gram.y (grammar_declaration): Location of printer
 2006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
 
        * src/parse-gram.y (grammar_declaration): Location of printer