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.\" 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 JAY 1 "May 24, 1993 / July 8, 1998"
.UC 6
.SH NAME
jay \- an LALR(1) parser generator for Java and C#
.SH SYNOPSIS
.B jay [ -tv ] [ -c ] [ -b
.I file_prefix
.B ] [ -V
.I yyValue
.B ]
.I filename
.B <
.I skeleton
.SH DESCRIPTION
.I Jay
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
from the file
.I skeleton
written in the Java programming language.
.I Jay
writes the parse tables and the driver routine to standard output.
.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 -c
The
.B -c
option makes jay generate C# code instead of the default Java.
.TP
.B -t
The
.B -t
option arranges for
debugging information to 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 skeleton
.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.
.SH HISTORY
.I Jay
is derived from Berkeley
.I yacc .
Input conventions closely follow those of
.I yacc ;
for details,
consult the parser
.I skeleton
file and the commented example included with the sources.
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