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Load gherkin parser considering language comment #109

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Load gherkin parser considering language comment #109

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19 changes: 15 additions & 4 deletions lib/cucumber/parser.js
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@@ -1,6 +1,5 @@
var Parser = function(featureSources, astFilter) {
var Gherkin = require('gherkin');
var GherkinLexer = require('gherkin/lib/gherkin/lexer/en');
var Cucumber = require('../cucumber');

var features = Cucumber.Ast.Features();
Expand All @@ -9,13 +8,25 @@ var Parser = function(featureSources, astFilter) {

var self = {
parse: function parse() {
var eventHandler = self.getEventHandlers();
var lexer = new GherkinLexer(self.getEventHandlers());
var lexers = {};
var lexer = function (lang) {
if (!(lang in lexers)) {
lexers[lang] = new (Gherkin.Lexer(lang))(self.getEventHandlers());
}

return lexers[lang];
};

for (i in featureSources) {
var currentSourceUri = featureSources[i][Parser.FEATURE_NAME_SOURCE_PAIR_URI_INDEX];
var featureSource = featureSources[i][Parser.FEATURE_NAME_SOURCE_PAIR_SOURCE_INDEX];
self.setCurrentSourceUri(currentSourceUri);
lexer.scan(featureSource);
featureSource = featureSource.toString();

var languageMatch = /^# language: (.*)\n/.exec(featureSource);
var language = languageMatch == null ? 'en' : languageMatch[1];

lexer(language).scan(featureSource);
}
return features;
},
Expand Down