mirror of https://github.com/jkjoy/sunpeiwen.git
44 lines
976 B
JavaScript
44 lines
976 B
JavaScript
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/*!
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* expand-range <https://github.com/jonschlinkert/expand-range>
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*
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* Copyright (c) 2014-2015, Jon Schlinkert.
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* Licensed under the MIT license.
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*/
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'use strict';
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var fill = require('fill-range');
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module.exports = function expandRange(str, options, fn) {
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if (typeof str !== 'string') {
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throw new TypeError('expand-range expects a string.');
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}
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if (typeof options === 'function') {
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fn = options;
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options = {};
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}
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if (typeof options === 'boolean') {
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options = {};
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options.makeRe = true;
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}
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// create arguments to pass to fill-range
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var opts = options || {};
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var args = str.split('..');
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var len = args.length;
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if (len > 3) { return str; }
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// if only one argument, it can't expand so return it
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if (len === 1) { return args; }
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// if `true`, tell fill-range to regexify the string
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if (typeof fn === 'boolean' && fn === true) {
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opts.makeRe = true;
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}
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args.push(opts);
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return fill.apply(null, args.concat(fn));
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};
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