NAME
jay - an LALR(1) parser generator for Java and C#
SYNOPSIS
jay [ -tv ] [ -c ] [ -p ] [ -b
file_prefix
] [ -V
yyValue
]
filename
<
skeleton
DESCRIPTION
Jay
reads the grammar specification in the file
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
skeleton
written in the Java programming language.
Jay
writes the parse tables and the driver routine to standard output.
The following options are available:
-b file_prefix
The
-b
option changes the prefix prepended to the output file names to
the string denoted by
R file_prefix.
The default prefix is the character
R y.
-c
The
-c
option makes jay generate C# code instead of the default Java.
-t
The
-t
option arranges for
debugging information to be incorporated in the compiled code.
-v
The
-v
option causes a human-readable description of the generated parser to
be written to the file
R y.output.
-p
The
-p
option causes
jay
to print the directory in which its sample skeleton files are
installed. If a project wants to use the default skeleton file
included with jay, it can use this option in a makefile to
find the path to the
skeleton
or
skeleton.cs
file included with the jay distribution.
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.
FILES
R skeleton
R y.output
R /tmp/yacc.aXXXXXX
R /tmp/yacc.tXXXXXX
R /tmp/yacc.uXXXXXX
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.
HISTORY
Jay
is derived from Berkeley
yacc .
Input conventions closely follow those of
yacc ;
for details,
consult the parser
skeleton
file and the commented example included with the sources.
