50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
var N3 = require('n3'), fs = require('fs'), N3Util = N3.Util;
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if (!process.argv[2]){
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console.log('RDF N3/NTriples/Turtle file validator');
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console.log('Usage: $ node N3Validator.js <path-to-file>');
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process.exit(1);
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}
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console.log('Validating '+process.argv[2]);
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var parser = N3.Parser(),
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turtleStream = fs.createReadStream(process.argv[2]);
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var errorCount = 0;
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parser.parse(turtleStream, function (error, triple, prefixes){
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if (error){
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console.log(error);
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errorCount++;
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}
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if (triple) {
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if (N3Util.isLiteral(triple.object)){
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var value = N3Util.getLiteralValue(triple.object);
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var type = N3Util.getLiteralType(triple.object);
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type = type.replace('http://www.w3.org/2001/XMLSchema#','');
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switch(type) {
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case 'float':
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case 'double':
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if (!(/[-+]?\d*[.]\d+/.test(value))){
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console.log('WARNING: datatype does not validate for value ' + value);
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console.log(triple.subject, triple.predicate, triple.object, '.');
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}
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break;
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case 'int':
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if (!(/^\+?(0|[1-9]\d*)$/.test(value))){
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console.log('WARNING: int does not validate for value ' + value);
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console.log(triple.subject, triple.predicate, triple.object, '.');
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}
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}
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}
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} else {
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console.log("Validation done: "+ errorCount + " errors found.");
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}
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});
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