After 2.5 years of silence in the original Jison repo the team behind AlaSQL have made this community fork to harvest some of the great pull requests. The code here will be released on npm as "jisons" (extra s) and just like the story about nodejs and iojs the hope is that the two repos can one day merge again.
npm install jisons -g
Usage from the command line
Clone the github repository for examples:
git clone git://github.com/zaach/jison.git cd jison/examples
Now you're ready to generate some parsers:
This will generate
calculator.js in your current working directory. This file can be used to parse an input file, like so:
echo "2^32 / 1024" > testcalc node calculator.js testcalc
This will print out
Full cli option list:
Usage: jison [file] [lexfile] [options] file file containing a grammar lexfile file containing a lexical grammar Options: -j, --json force jison to expect a grammar in JSON format -o FILE, --outfile FILE Filename and base module name of the generated parser -t, --debug Debug mode -m TYPE, --module-type TYPE The type of module to generate (commonjs, amd, js) -p TYPE, --parser-type TYPE The type of algorithm to use for the parser (lr0, slr, lalr, lr) -V, --version print version and exit
Usage from a CommonJS module
// mygenerator.jsvar Parser = Parser;// a grammar in JSONvar grammar ="lex":"rules":"\\s+" "/* skip whitespace */""[a-f0-9]+" "return 'HEX';""bnf":"hex_strings" : "hex_strings HEX""HEX";// `grammar` can also be a string that uses jison's grammar formatvar parser = grammar;// generate source, ready to be written to diskvar parserSource = parser;// you can also use the parser directly from memory// returns trueparser;// throws lexical errorparser;
For more information on creating grammars and using the generated parsers, read the documentation.
How to contribute
See CONTRIBUTING.md for contribution guidelines, how to run the tests, etc.
Projects using Jison
View them on the wiki, or add your own.
Special thanks to Jarred Ligatti, Manuel E. Bermúdez
Copyright (c) 2009-2014 Zachary Carter
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.