yyfix(1)

NAME

yyfix - extract tables from y.tab.c

SYNOPSIS

yyfix file [tables]

DESCRIPTION

Programs have historically used a script (often named ``:yy

fix'') 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(1) are

different from
those of historical versions of yacc(1), 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(1), and ex

tracts the
appropriate tables.

The tables ``yyexca'', ``yyact'', ``yypact'', ``yypgo'',

``yyr1'',
``yyr2'', ``yychk'', and ``yydef'' are extracted from his

torical 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).

FILES

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

SEE ALSO

yacc(1)

HISTORY

The yyfix command first appeared in 4.4BSD.

BSD March 23, 1993

BSD