NAME¶
yyfix —
extract tables from
y.tab.c
SYNOPSIS¶
DESCRIPTION¶
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(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 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).
FILES¶
- y.tab.c
- File from which tables are extracted.
SEE ALSO¶
yacc(1)
HISTORY¶
The
yyfix command first appeared in
4.4BSD.