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.