jison grammars come in two formats: JSON or a speciel text format similar to Bison's. This utility converts from the jison's format to JSON. See the json2jison for the reverse conversion.
npm install jison2json -g
# single grammar
jison2json grammar.y
# or separate grammars
jison2json grammar.y lex.l
Or require it and convert programatically:
var jison2json = require('jison2json');
var grammar = "%% foo: bar { return true };";
var json = jison2json.convert(grammar);
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