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+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)yyfix.1	5.4 (Berkeley) 3/23/93
+.\"
+.Dd March 23, 1993
+.Dt YYFIX 1
+.Os BSD 4.4
+.Sh NAME
+.Nm yyfix
+.Nd extract tables from y.tab.c
+.Sh SYNOPSIS
+.Nm yyfix
+.Ar file
+.Op Ar tables
+.Sh DESCRIPTION
+Programs have historically used a script (often named ``:yyfix'') to
+extract tables from the
+.Xr yacc 1
+generated file
+.Pa y.tab.c .
+As the names of the tables generated by the current version of
+.Xr yacc
+are different from those of historical versions of
+.Xr yacc ,
+the shell script
+.Nm yyfix
+is provided to simplify the transition.
+.Pp
+The first (and required) argument to
+.Nm yyfix
+is the name of the file where the extracted tables should be stored.
+.Pp
+If further command line arguments are specified, they are taken as
+the list of tables to be extracted.
+Otherwise,
+.Nm yyfix
+attempts to determine if the
+.Pa y.tab.c
+file is from an old or new
+.Xr yacc ,
+and extracts the appropriate tables.
+.Pp
+The tables
+.Dq yyexca ,
+.Dq yyact ,
+.Dq yypact ,
+.Dq yypgo ,
+.Dq yyr1 ,
+.Dq yyr2 ,
+.Dq yychk ,
+and
+.Dq yydef
+are extracted
+from historical versions of
+.Xr yacc .
+.Pp
+The tables
+.Dq yylhs ,
+.Dq yylen ,
+.Dq yydefred ,
+.Dq yydgoto ,
+.Dq yysindex ,
+.Dq yyrindex ,
+.Dq yygindex ,
+.Dq yytable ,
+.Dq yyname ,
+.Dq yyrule ,
+and
+.Dq yycheck ,
+are extracted from the current version of
+.Xr yacc .
+.Sh FILES
+.Bl -tag -width y.tab.c
+.It Pa y.tab.c
+File from which tables are extracted.
+.El
+.Sh SEE ALSO
+.Xr yacc 1
+.Sh HISTORY
+The
+.Nm
+command appears in
+.Bx 4.4 .