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