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Viewing changes to facedetection/www/bower_components/prism/tests/helper/token-stream-transformer.js

  • Committer: Didier Roche
  • Date: 2016-05-10 23:09:11 UTC
  • Revision ID: didier.roche@canonical.com-20160510230911-c7xr490zrj3yrzxd
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facedetection/www/bower_components/prism/tests/helper/token-stream-transformer.js
 
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"use strict";
 
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module.exports = {
 
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        /**
 
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         * Simplifies the token stream to ease the matching with the expected token stream.
 
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         *
 
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         * * Strings are kept as-is
 
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         * * In arrays each value is transformed individually
 
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         * * Values that are empty (empty arrays or strings only containing whitespace)
 
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         *
 
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         *
 
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         * @param {Array} tokenStream
 
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         * @returns {Array.<string[]|Array>}
 
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         */
 
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        simplify: function (tokenStream) {
 
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                if (Array.isArray(tokenStream)) {
 
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                        return tokenStream
 
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                                .map(this.simplify.bind(this))
 
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                                .filter(function (value) {
 
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                                        return !(Array.isArray(value) && !value.length) && !(typeof value === "string" && !value.trim().length);
 
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                                }
 
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                        );
 
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                }
 
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                else if (typeof tokenStream === "object") {
 
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                        return [tokenStream.type, this.simplify(tokenStream.content)];
 
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                }
 
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                else {
 
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                        return tokenStream;
 
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                }
 
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        }
 
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};