Fix bug such that the first pushed token's value and location are

[bison.git] / ChangeLog

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+2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       Fix bug such that the first pushed token's value and location are
+       sometimes overwritten (sometimes by %initial-action) before being used.
+       * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
+       yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
+       For the first yypush_parse invocation, initialize yychar to YYEMPTY to
+       more closely mimic the pull parser logic.
+       Don't copy the pushed token to yychar, yylval, and yylloc until it's
+       time to read a token, which is after any initialization of yylval and
+       yylloc.
+       (gottoken): Rename label to...
+       (yyread_pushed_token): ... for clarity and to avoid infringing on the
+       user namespace.
+
 2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        Rearrange initialization of the parser state variables so that the