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 file_prefix. The default
prefix is the character 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 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¶
skeleton
y.output
/tmp/yacc.aXXXXXX
/tmp/yacc.tXXXXXX
/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.