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When reducing initial empty rules, Bison parser read an initial

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location that is not defined.  This results in garbage, and that
affects Bison's own parser.  Therefore we need (i) to extend Bison
to support a means to initialize this location, and (ii) to use
this CVS Bison to fix CVS Bison's parser.
* src/reader.h, reader.c (epilogue_augment): Remove, replace
with...
* src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
* src/parse-gram.y: Adjust.
(%initial-action): New.
(%error-verbose): Since we require CVS Bison, there is no reason
not to use it.
* src/scan-gram.l: Adjust.
* src/Makefile.am (YACC): New, to make sure we use our own parser.
* data/yacc.c (yyparse): Use b4_initial_action.
This commit is contained in:
Akim Demaille
2003-08-25 15:16:25 +00:00
parent 388f8b197d
commit cd3684cfa8
12 changed files with 524 additions and 434 deletions
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@@ -1,3 +1,22 @@
2003-08-25 Akim Demaille <akim@epita.fr>
When reducing initial empty rules, Bison parser read an initial
location that is not defined. This results in garbage, and that
affects Bison's own parser. Therefore we need (i) to extend Bison
to support a means to initialize this location, and (ii) to use
this CVS Bison to fix CVS Bison's parser.
* src/reader.h, reader.c (epilogue_augment): Remove, replace
with...
* src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
* src/parse-gram.y: Adjust.
(%initial-action): New.
(%error-verbose): Since we require CVS Bison, there is no reason
not to use it.
* src/scan-gram.l: Adjust.
* src/Makefile.am (YACC): New, to make sure we use our own parser.
* data/yacc.c (yyparse): Use b4_initial_action.
2003-08-25 Akim Demaille <akim@epita.fr>
* doc/bison.texinfo: Don't promote stdout for error messages.