94 lines
2.5 KiB
JavaScript
94 lines
2.5 KiB
JavaScript
'use strict';
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var isWindows = process.platform === 'win32';
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// Regex to split a windows path into three parts: [*, device, slash,
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// tail] windows-only
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var splitDeviceRe =
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/^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
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// Regex to split the tail part of the above into [*, dir, basename, ext]
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var splitTailRe =
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/^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;
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var win32 = {};
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// Function to split a filename into [root, dir, basename, ext]
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function win32SplitPath(filename) {
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// Separate device+slash from tail
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var result = splitDeviceRe.exec(filename),
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device = (result[1] || '') + (result[2] || ''),
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tail = result[3] || '';
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// Split the tail into dir, basename and extension
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var result2 = splitTailRe.exec(tail),
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dir = result2[1],
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basename = result2[2],
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ext = result2[3];
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return [device, dir, basename, ext];
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}
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win32.parse = function(pathString) {
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if (typeof pathString !== 'string') {
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throw new TypeError(
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"Parameter 'pathString' must be a string, not " + typeof pathString
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);
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}
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var allParts = win32SplitPath(pathString);
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if (!allParts || allParts.length !== 4) {
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throw new TypeError("Invalid path '" + pathString + "'");
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}
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return {
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root: allParts[0],
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dir: allParts[0] + allParts[1].slice(0, -1),
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base: allParts[2],
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ext: allParts[3],
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name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
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};
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};
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// Split a filename into [root, dir, basename, ext], unix version
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// 'root' is just a slash, or nothing.
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var splitPathRe =
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/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
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var posix = {};
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function posixSplitPath(filename) {
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return splitPathRe.exec(filename).slice(1);
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}
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posix.parse = function(pathString) {
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if (typeof pathString !== 'string') {
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throw new TypeError(
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"Parameter 'pathString' must be a string, not " + typeof pathString
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);
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}
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var allParts = posixSplitPath(pathString);
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if (!allParts || allParts.length !== 4) {
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throw new TypeError("Invalid path '" + pathString + "'");
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}
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allParts[1] = allParts[1] || '';
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allParts[2] = allParts[2] || '';
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allParts[3] = allParts[3] || '';
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return {
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root: allParts[0],
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dir: allParts[0] + allParts[1].slice(0, -1),
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base: allParts[2],
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ext: allParts[3],
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name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
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};
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};
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if (isWindows)
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module.exports = win32.parse;
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else /* posix */
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module.exports = posix.parse;
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module.exports.posix = posix.parse;
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module.exports.win32 = win32.parse;
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