pure bison yyerror()

[mike burrell]

excuse me if this is the wrong address to send to.

i'd like to have Bison's error reporting mechanics (i.e. yyerror()) be more
re-entrant friendly and thus pass a re-entrant argument to it (as is already
done with yyparse() via YYPARSE_PARAM and yylex() via YYLEX_PARAM).  i went
through the source code and found that there are only a half-dozen places
that changes would have to be made (in bison.s1, basically adding some
#ifdefs).  i figure that all i'd have to do now is update the documentation
some.

so i'm wondering whether this (YYERROR_PARAM) would be of interest.  i.e. if
i finish the changes and update the documentation, etc. and send someone a
patch, will this get folded in to the next release?

TIA

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