47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
'use strict';
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var interpolateName = require('loader-utils').interpolateName;
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var path = require('path');
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var util = require('util');
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/**
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* @param {string} pattern
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* @param {object} options
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* @param {string} options.context
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* @param {string} options.hashPrefix
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* @return {function}
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*/
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module.exports = function createGenerator(pattern, options) {
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options = options || {};
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var context = options && typeof options.context === 'string'
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? options.context
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: '';
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var hashPrefix = options && typeof options.hashPrefix === 'string'
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? options.hashPrefix
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: '';
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/**
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* @param {string} localName Usually a class name
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* @param {string} filepath Absolute path
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* @return {string}
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*/
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return function generate(localName, filepath) {
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var name = pattern.replace(/\[local\]/gi, localName);
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var loaderContext = {
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resourcePath: filepath
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};
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var loaderOptions = {
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content: util.format('%s%s+%s',
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hashPrefix,
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path.relative(context, filepath),
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localName),
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context: context
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};
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var genericName = interpolateName(loaderContext, name, loaderOptions);
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return genericName
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.replace(new RegExp('[^a-zA-Z0-9\\-_\u00A0-\uFFFF]', 'g'), '-')
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.replace(/^((-?[0-9])|--)/, "_$1");
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};
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};
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