NAME
yyfix —
extract tables from y.tab.c
SYNOPSIS
yyfix |
file [tables] |
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 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(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
HISTORY
The yyfix command first appeared in
4.4BSD.