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During deterministic GLR operation, user actions should be able to

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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.
This commit is contained in:
Joel E. Denny
2006-01-30 11:15:15 +00:00
parent e2a8c0f591
commit 3f0014152b
6 changed files with 63 additions and 39 deletions
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doc/bison.texinfo
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@@ -6889,8 +6889,6 @@ Implies @code{state} and augments the description of the automaton with
the full set of items for each state, instead of its core only.
@end table
For instance, on the following grammar
@item -v
@itemx --verbose
Pretend that @code{%verbose} was specified, i.e, write an extra output