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jay - Online in the Cloud

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jay - an LALR(1) parser generator for Java and C#


jay [ -tv ] [ -c ] [ -p ] [ -b file_prefix ] [ -V yyValue ] filename < skeleton


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.

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