sirensolutions/antlr4-javascript-sparql

Name: antlr4-javascript-sparql

Owner: Siren

Description: An UMD module which expose sparql parser lexer listener and visitor

Created: 2015-10-27 16:35:59.0

Updated: 2016-05-19 16:05:55.0

Pushed: 2016-05-19 16:10:21.0

Homepage: null

Size: 124

Language: JavaScript

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README

antlr4-javascript-sparql

An UMD module which expose sparql parser lexer listener and visitor

Info

This is a UMD module for javascript sparql parser classes Parser classes where generated from gramar files using antlr4 framework:

 -Xmx500M -cp "antlr-4.5-complete.jar:$CLASSPATH" org.antlr.v4.Tool -Dlanguage=JavaScript sparql/SparqlLexer.g4 -o lib
ib/sparql/SparqlLexer.tokens lib/
 -Xmx500M -cp "antlr-4.5-complete.jar:$CLASSPATH" org.antlr.v4.Tool -Dlanguage=JavaScript sparql/SparqlParser.g4 -visitor -o lib

Then a few modyfications were made to generated classes.

• each class was wrapped in a function - to be able to pass dependencies
• in SparqlLexer - atn and decisionToFDA where moved inside the constructor
• in SparqlParser - atn decisionToFDA and sharedContextCache where moved inside the constructor and atn was directly assigned to this and the Object.defineProperty was commented out

Useage

To build UMD module type:

install -g browserify
serify  --ignore-missing main.js -o release/antlr4-sparql.js",

The result module is in **release/antlr4-sparql.js

To use with webpack define following shim antlr4-sparql.js

antlr4 = require('antlr4-base');
sparqlLexer = require('node_modules/antlr4-javascript-sparql/lib/SparqlLexer.js');
sparqlParser = require('node_modules/antlr4-javascript-sparql/lib/SparqlParser.js');
sparqlParserListener = require('node_modules/antlr4-javascript-sparql/lib/SparqlParserListener');
sparqlParserVisitor = require('node_modules/antlr4-javascript-sparql/lib/SparqlParserVisitor');
listener = sparqlParserListener(antlr4);

le.exports = {
arqlLexer: sparqlLexer(antlr4),
arqlParser: sparqlParser(antlr4, listener),
arqlParserListener: listener,
arqlParserVisitor: sparqlParserVisitor(antlr4)