mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-28 11:12:46 +00:00
146 lines
4.2 KiB
Groff
146 lines
4.2 KiB
Groff
|
.\" Copyright (c) 1989, 1990 The Regents of the University of California.
|
||
|
|
.\" All rights reserved.
|
||
|
|
.\"
|
||
|
|
.\" This code is derived from software contributed to Berkeley by
|
||
|
|
.\" Robert Paul Corbett.
|
||
|
|
.\"
|
||
|
|
.\" 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.
|
||
|
|
.\"
|
||
|
|
.\" @(#)yacc.1 5.8 (Berkeley) 5/24/93
|
||
|
|
.\"
|
||
|
|
.TH YACC 1 "May 24, 1993"
|
||
|
|
.UC 6
|
||
|
|
.SH NAME
|
||
|
|
yacc \- an LALR(1) parser generator
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.B yacc [ -dlrtv ] [ -b
|
||
|
|
.I file_prefix
|
||
|
|
.B ] [ -p
|
||
|
|
.I symbol_prefix
|
||
|
|
.B ]
|
||
|
|
.I filename
|
||
|
|
.SH DESCRIPTION
|
||
|
|
.I Yacc
|
||
|
|
reads the grammar specification in the file
|
||
|
|
.I filename
|
||
|
|
and generates an LR(1) parser for it.
|
||
|
|
The parsers consist of a set of LALR(1) parsing tables and a driver routine
|
||
|
|
written in the C programming language.
|
||
|
|
.I Yacc
|
||
|
|
normally writes the parse tables and the driver routine to the file
|
||
|
|
.IR y.tab.c.
|
||
|
|
.PP
|
||
|
|
The following options are available:
|
||
|
|
.RS
|
||
|
|
.TP
|
||
|
|
\fB-b \fIfile_prefix\fR
|
||
|
|
The
|
||
|
|
.B -b
|
||
|
|
option changes the prefix prepended to the output file names to
|
||
|
|
the string denoted by
|
||
|
|
.IR file_prefix.
|
||
|
|
The default prefix is the character
|
||
|
|
.IR y.
|
||
|
|
.TP
|
||
|
|
.B -d
|
||
|
|
The \fB-d\fR option causes the header file
|
||
|
|
.IR y.tab.h
|
||
|
|
to be written.
|
||
|
|
.TP
|
||
|
|
.B -l
|
||
|
|
If the
|
||
|
|
.B -l
|
||
|
|
option is not specified,
|
||
|
|
.I yacc
|
||
|
|
will insert #line directives in the generated code.
|
||
|
|
The #line directives let the C compiler relate errors in the
|
||
|
|
generated code to the user's original code.
|
||
|
|
If the \fB-l\fR option is specified,
|
||
|
|
.I yacc
|
||
|
|
will not insert the #line directives.
|
||
|
|
Any #line directives specified by the user will be retained.
|
||
|
|
.TP
|
||
|
|
\fB-p \fIsymbol_prefix\fR
|
||
|
|
The
|
||
|
|
.B -p
|
||
|
|
option changes the prefix prepended to yacc-generated symbols to
|
||
|
|
the string denoted by
|
||
|
|
.IR symbol_prefix.
|
||
|
|
The default prefix is the string
|
||
|
|
.IR yy.
|
||
|
|
.TP
|
||
|
|
.B -r
|
||
|
|
The
|
||
|
|
.B -r
|
||
|
|
option causes
|
||
|
|
.I yacc
|
||
|
|
to produce separate files for code and tables. The code file
|
||
|
|
is named
|
||
|
|
.IR y.code.c,
|
||
|
|
and the tables file is named
|
||
|
|
.IR y.tab.c.
|
||
|
|
.TP
|
||
|
|
.B -t
|
||
|
|
The
|
||
|
|
.B -t
|
||
|
|
option changes the preprocessor directives generated by
|
||
|
|
.I yacc
|
||
|
|
so that debugging statements will be incorporated in the compiled code.
|
||
|
|
.TP
|
||
|
|
.B -v
|
||
|
|
The
|
||
|
|
.B -v
|
||
|
|
option causes a human-readable description of the generated parser to
|
||
|
|
be written to the file
|
||
|
|
.IR y.output.
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
If the environment variable TMPDIR is set, the string denoted by
|
||
|
|
TMPDIR will be used as the name of the directory where the temporary
|
||
|
|
files are created.
|
||
|
|
.SH FILES
|
||
|
|
.IR y.code.c
|
||
|
|
.br
|
||
|
|
.IR y.tab.c
|
||
|
|
.br
|
||
|
|
.IR y.tab.h
|
||
|
|
.br
|
||
|
|
.IR y.output
|
||
|
|
.br
|
||
|
|
.IR /tmp/yacc.aXXXXXX
|
||
|
|
.br
|
||
|
|
.IR /tmp/yacc.tXXXXXX
|
||
|
|
.br
|
||
|
|
.IR /tmp/yacc.uXXXXXX
|
||
|
|
.SH DIAGNOSTICS
|
||
|
|
If there are rules that are never reduced, the number of such rules is
|
||
|
|
reported on standard error.
|
||
|
|
If there are any LALR(1) conflicts, the number of conflicts is reported
|
||
|
|
on standard error.
|