NAME    [Toc]    [Back]

     yyfix - extract tables from y.tab.c

SYNOPSIS    [Toc]    [Back]

     yyfix file [tables]

DESCRIPTION    [Toc]    [Back]

     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 yyfix 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,  yyfix  attempts
to determine
     if the y.tab.c file is from an old or new yacc, and extracts
the appropriate
 tables.

     The tables  ``yyexca'',  ``yyact'',  ``yypact'',  ``yypgo'',
``yyr1'',
     ``yyr2'',  ``yychk'',  and ``yydef'' are extracted from historical versions
     of yacc.

     The tables ``yylhs'', ``yylen'', ``yydefred'',  ``yydgoto'',
``yysindex'',
     ``yyrindex'',    ``yygindex'',    ``yytable'',   ``yyname'',
``yyrule'', and
     ``yycheck'', are extracted from the current version of yacc.

FILES    [Toc]    [Back]

     y.tab.c  File from which tables are extracted.

SEE ALSO    [Toc]    [Back]

     yacc(1)

HISTORY    [Toc]    [Back]

     The yyfix command first appeared in 4.4BSD.

OpenBSD      3.6                          March      23,     1993