extract tables from y.tab.c
Programs have historically used a script (often named
:yyfix) to extract tables from the
yacc(1) generated file y.tab.c. As the names
of the tables generated by the current version of yacc are different from
those of historical versions of yacc, the shell script
yyfix is provided to simplify the transition.
The first (and required) argument to
is the name of the file where the extracted tables should be stored.
If further command line arguments are specified, they are taken as
the list of tables to be extracted. Otherwise,
attempts to determine if the y.tab.c file is from an
old or new yacc(1), and extracts the appropriate tables.
The tables “yyexca”, “yyact”, “yypact”, “yypgo”, “yyr1”, “yyr2”, “yychk”, and “yydef” are extracted from historical versions of yacc(1).
The tables “yylhs”, “yylen”, “yydefred”, “yydgoto”, “yysindex”, “yyrindex”, “yygindex”, “yytable”, “yyname”, “yyrule”, and “yycheck”, are extracted from the current version of yacc(1).
- File from which tables are extracted.
yyfix command first appeared in