mirror of
https://github.com/nodejs/node.git
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2791761eda
`path.resolve()` and `path.join()` are left alone in this commit due to the lack of clear semantics. PR-URL: https://github.com/nodejs/node/pull/14440 Fixes: https://github.com/nodejs/node/issues/14405 Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
1624 lines
47 KiB
JavaScript
1624 lines
47 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const errors = require('internal/errors');
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function assertPath(path) {
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if (typeof path !== 'string') {
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throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'path', 'string');
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}
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}
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// Resolves . and .. elements in a path with directory names
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function normalizeStringWin32(path, allowAboveRoot) {
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var res = '';
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var lastSlash = -1;
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var dots = 0;
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var code;
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for (var i = 0; i <= path.length; ++i) {
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if (i < path.length)
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code = path.charCodeAt(i);
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else if (code === 47/*/*/ || code === 92/*\*/)
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break;
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else
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code = 47/*/*/;
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if (code === 47/*/*/ || code === 92/*\*/) {
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if (lastSlash === i - 1 || dots === 1) {
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// NOOP
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} else if (lastSlash !== i - 1 && dots === 2) {
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if (res.length < 2 ||
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res.charCodeAt(res.length - 1) !== 46/*.*/ ||
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res.charCodeAt(res.length - 2) !== 46/*.*/) {
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if (res.length > 2) {
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const start = res.length - 1;
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var j = start;
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for (; j >= 0; --j) {
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if (res.charCodeAt(j) === 92/*\*/)
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break;
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}
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if (j !== start) {
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if (j === -1)
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res = '';
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else
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res = res.slice(0, j);
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lastSlash = i;
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dots = 0;
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continue;
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}
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} else if (res.length === 2 || res.length === 1) {
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res = '';
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lastSlash = i;
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dots = 0;
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continue;
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}
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}
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if (allowAboveRoot) {
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if (res.length > 0)
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res += '\\..';
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else
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res = '..';
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}
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} else {
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if (res.length > 0)
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res += '\\' + path.slice(lastSlash + 1, i);
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else
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res = path.slice(lastSlash + 1, i);
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}
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lastSlash = i;
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dots = 0;
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} else if (code === 46/*.*/ && dots !== -1) {
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++dots;
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} else {
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dots = -1;
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}
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}
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return res;
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}
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// Resolves . and .. elements in a path with directory names
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function normalizeStringPosix(path, allowAboveRoot) {
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var res = '';
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var lastSlash = -1;
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var dots = 0;
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var code;
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for (var i = 0; i <= path.length; ++i) {
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if (i < path.length)
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code = path.charCodeAt(i);
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else if (code === 47/*/*/)
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break;
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else
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code = 47/*/*/;
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if (code === 47/*/*/) {
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if (lastSlash === i - 1 || dots === 1) {
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// NOOP
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} else if (lastSlash !== i - 1 && dots === 2) {
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if (res.length < 2 ||
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res.charCodeAt(res.length - 1) !== 46/*.*/ ||
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res.charCodeAt(res.length - 2) !== 46/*.*/) {
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if (res.length > 2) {
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const start = res.length - 1;
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var j = start;
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for (; j >= 0; --j) {
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if (res.charCodeAt(j) === 47/*/*/)
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break;
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}
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if (j !== start) {
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if (j === -1)
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res = '';
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else
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res = res.slice(0, j);
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lastSlash = i;
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dots = 0;
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continue;
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}
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} else if (res.length === 2 || res.length === 1) {
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res = '';
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lastSlash = i;
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dots = 0;
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continue;
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}
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}
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if (allowAboveRoot) {
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if (res.length > 0)
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res += '/..';
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else
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res = '..';
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}
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} else {
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if (res.length > 0)
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res += '/' + path.slice(lastSlash + 1, i);
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else
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res = path.slice(lastSlash + 1, i);
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}
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lastSlash = i;
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dots = 0;
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} else if (code === 46/*.*/ && dots !== -1) {
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++dots;
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} else {
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dots = -1;
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}
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}
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return res;
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}
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function _format(sep, pathObject) {
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const dir = pathObject.dir || pathObject.root;
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const base = pathObject.base ||
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((pathObject.name || '') + (pathObject.ext || ''));
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if (!dir) {
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return base;
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}
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if (dir === pathObject.root) {
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return dir + base;
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}
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return dir + sep + base;
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}
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const win32 = {
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// path.resolve([from ...], to)
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resolve: function resolve() {
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var resolvedDevice = '';
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var resolvedTail = '';
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var resolvedAbsolute = false;
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for (var i = arguments.length - 1; i >= -1; i--) {
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var path;
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if (i >= 0) {
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path = arguments[i];
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} else if (!resolvedDevice) {
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path = process.cwd();
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} else {
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// Windows has the concept of drive-specific current working
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// directories. If we've resolved a drive letter but not yet an
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// absolute path, get cwd for that drive, or the process cwd if
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// the drive cwd is not available. We're sure the device is not
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// a UNC path at this points, because UNC paths are always absolute.
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path = process.env['=' + resolvedDevice] || process.cwd();
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// Verify that a cwd was found and that it actually points
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// to our drive. If not, default to the drive's root.
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if (path === undefined ||
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path.slice(0, 3).toLowerCase() !==
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resolvedDevice.toLowerCase() + '\\') {
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path = resolvedDevice + '\\';
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}
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}
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assertPath(path);
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// Skip empty entries
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if (path.length === 0) {
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continue;
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}
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var len = path.length;
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var rootEnd = 0;
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var code = path.charCodeAt(0);
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var device = '';
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var isAbsolute = false;
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// Try to match a root
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if (len > 1) {
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Possible UNC root
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// If we started with a separator, we know we at least have an
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// absolute path of some kind (UNC or otherwise)
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isAbsolute = true;
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code = path.charCodeAt(1);
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Matched double path separator at beginning
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var j = 2;
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var last = j;
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// Match 1 or more non-path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code === 47/*/*/ || code === 92/*\*/)
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break;
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}
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if (j < len && j !== last) {
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const firstPart = path.slice(last, j);
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// Matched!
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last = j;
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// Match 1 or more path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code !== 47/*/*/ && code !== 92/*\*/)
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break;
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}
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if (j < len && j !== last) {
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// Matched!
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last = j;
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// Match 1 or more non-path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code === 47/*/*/ || code === 92/*\*/)
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break;
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}
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if (j === len) {
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// We matched a UNC root only
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device = '\\\\' + firstPart + '\\' + path.slice(last);
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rootEnd = j;
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} else if (j !== last) {
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// We matched a UNC root with leftovers
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device = '\\\\' + firstPart + '\\' + path.slice(last, j);
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rootEnd = j;
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}
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}
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}
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} else {
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rootEnd = 1;
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}
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} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
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(code >= 97/*a*/ && code <= 122/*z*/)) {
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// Possible device root
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code = path.charCodeAt(1);
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if (path.charCodeAt(1) === 58/*:*/) {
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device = path.slice(0, 2);
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rootEnd = 2;
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if (len > 2) {
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code = path.charCodeAt(2);
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Treat separator following drive name as an absolute path
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// indicator
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isAbsolute = true;
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rootEnd = 3;
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}
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}
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}
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}
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} else if (code === 47/*/*/ || code === 92/*\*/) {
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// `path` contains just a path separator
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rootEnd = 1;
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isAbsolute = true;
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}
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if (device.length > 0 &&
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resolvedDevice.length > 0 &&
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device.toLowerCase() !== resolvedDevice.toLowerCase()) {
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// This path points to another device so it is not applicable
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continue;
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}
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if (resolvedDevice.length === 0 && device.length > 0) {
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resolvedDevice = device;
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}
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if (!resolvedAbsolute) {
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resolvedTail = path.slice(rootEnd) + '\\' + resolvedTail;
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resolvedAbsolute = isAbsolute;
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}
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if (resolvedDevice.length > 0 && resolvedAbsolute) {
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break;
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}
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}
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// At this point the path should be resolved to a full absolute path,
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// but handle relative paths to be safe (might happen when process.cwd()
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// fails)
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// Normalize the tail path
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resolvedTail = normalizeStringWin32(resolvedTail, !resolvedAbsolute);
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return (resolvedDevice + (resolvedAbsolute ? '\\' : '') + resolvedTail) ||
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'.';
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},
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normalize: function normalize(path) {
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assertPath(path);
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const len = path.length;
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if (len === 0)
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return '.';
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var rootEnd = 0;
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var code = path.charCodeAt(0);
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var device;
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var isAbsolute = false;
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// Try to match a root
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if (len > 1) {
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Possible UNC root
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// If we started with a separator, we know we at least have an absolute
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// path of some kind (UNC or otherwise)
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isAbsolute = true;
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code = path.charCodeAt(1);
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Matched double path separator at beginning
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var j = 2;
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var last = j;
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// Match 1 or more non-path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code === 47/*/*/ || code === 92/*\*/)
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break;
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}
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if (j < len && j !== last) {
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const firstPart = path.slice(last, j);
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// Matched!
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last = j;
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// Match 1 or more path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code !== 47/*/*/ && code !== 92/*\*/)
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break;
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}
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if (j < len && j !== last) {
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// Matched!
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last = j;
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// Match 1 or more non-path separators
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for (; j < len; ++j) {
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code = path.charCodeAt(j);
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if (code === 47/*/*/ || code === 92/*\*/)
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break;
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}
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if (j === len) {
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// We matched a UNC root only
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// Return the normalized version of the UNC root since there
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// is nothing left to process
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return '\\\\' + firstPart + '\\' + path.slice(last) + '\\';
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} else if (j !== last) {
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// We matched a UNC root with leftovers
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device = '\\\\' + firstPart + '\\' + path.slice(last, j);
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rootEnd = j;
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}
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}
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}
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} else {
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rootEnd = 1;
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}
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} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
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(code >= 97/*a*/ && code <= 122/*z*/)) {
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// Possible device root
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code = path.charCodeAt(1);
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if (path.charCodeAt(1) === 58/*:*/) {
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device = path.slice(0, 2);
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rootEnd = 2;
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if (len > 2) {
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code = path.charCodeAt(2);
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if (code === 47/*/*/ || code === 92/*\*/) {
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// Treat separator following drive name as an absolute path
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// indicator
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isAbsolute = true;
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rootEnd = 3;
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}
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}
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}
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}
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} else if (code === 47/*/*/ || code === 92/*\*/) {
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// `path` contains just a path separator, exit early to avoid unnecessary
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// work
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return '\\';
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}
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code = path.charCodeAt(len - 1);
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var trailingSeparator = (code === 47/*/*/ || code === 92/*\*/);
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var tail;
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if (rootEnd < len)
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tail = normalizeStringWin32(path.slice(rootEnd), !isAbsolute);
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else
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tail = '';
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if (tail.length === 0 && !isAbsolute)
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tail = '.';
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if (tail.length > 0 && trailingSeparator)
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tail += '\\';
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if (device === undefined) {
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if (isAbsolute) {
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if (tail.length > 0)
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return '\\' + tail;
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else
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return '\\';
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} else if (tail.length > 0) {
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return tail;
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} else {
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return '';
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}
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} else {
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if (isAbsolute) {
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if (tail.length > 0)
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return device + '\\' + tail;
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else
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return device + '\\';
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} else if (tail.length > 0) {
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return device + tail;
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} else {
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return device;
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}
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}
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},
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isAbsolute: function isAbsolute(path) {
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assertPath(path);
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const len = path.length;
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if (len === 0)
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return false;
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var code = path.charCodeAt(0);
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if (code === 47/*/*/ || code === 92/*\*/) {
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return true;
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} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
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(code >= 97/*a*/ && code <= 122/*z*/)) {
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// Possible device root
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if (len > 2 && path.charCodeAt(1) === 58/*:*/) {
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code = path.charCodeAt(2);
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if (code === 47/*/*/ || code === 92/*\*/)
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return true;
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}
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}
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return false;
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},
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join: function join() {
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if (arguments.length === 0)
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return '.';
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var joined;
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var firstPart;
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for (var i = 0; i < arguments.length; ++i) {
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var arg = arguments[i];
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assertPath(arg);
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if (arg.length > 0) {
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if (joined === undefined)
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joined = firstPart = arg;
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else
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joined += '\\' + arg;
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}
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}
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if (joined === undefined)
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return '.';
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// Make sure that the joined path doesn't start with two slashes, because
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// normalize() will mistake it for an UNC path then.
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//
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// This step is skipped when it is very clear that the user actually
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// intended to point at an UNC path. This is assumed when the first
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// non-empty string arguments starts with exactly two slashes followed by
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// at least one more non-slash character.
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//
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// Note that for normalize() to treat a path as an UNC path it needs to
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// have at least 2 components, so we don't filter for that here.
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// This means that the user can use join to construct UNC paths from
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// a server name and a share name; for example:
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// path.join('//server', 'share') -> '\\\\server\\share\\')
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//var firstPart = paths[0];
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var needsReplace = true;
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var slashCount = 0;
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var code = firstPart.charCodeAt(0);
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if (code === 47/*/*/ || code === 92/*\*/) {
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++slashCount;
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const firstLen = firstPart.length;
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if (firstLen > 1) {
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code = firstPart.charCodeAt(1);
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if (code === 47/*/*/ || code === 92/*\*/) {
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++slashCount;
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if (firstLen > 2) {
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code = firstPart.charCodeAt(2);
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if (code === 47/*/*/ || code === 92/*\*/)
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++slashCount;
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else {
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// We matched a UNC path in the first part
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needsReplace = false;
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}
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}
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}
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}
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}
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if (needsReplace) {
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// Find any more consecutive slashes we need to replace
|
|
for (; slashCount < joined.length; ++slashCount) {
|
|
code = joined.charCodeAt(slashCount);
|
|
if (code !== 47/*/*/ && code !== 92/*\*/)
|
|
break;
|
|
}
|
|
|
|
// Replace the slashes if needed
|
|
if (slashCount >= 2)
|
|
joined = '\\' + joined.slice(slashCount);
|
|
}
|
|
|
|
return win32.normalize(joined);
|
|
},
|
|
|
|
|
|
// It will solve the relative path from `from` to `to`, for instance:
|
|
// from = 'C:\\orandea\\test\\aaa'
|
|
// to = 'C:\\orandea\\impl\\bbb'
|
|
// The output of the function should be: '..\\..\\impl\\bbb'
|
|
relative: function relative(from, to) {
|
|
assertPath(from);
|
|
assertPath(to);
|
|
|
|
if (from === to)
|
|
return '';
|
|
|
|
var fromOrig = win32.resolve(from);
|
|
var toOrig = win32.resolve(to);
|
|
|
|
if (fromOrig === toOrig)
|
|
return '';
|
|
|
|
from = fromOrig.toLowerCase();
|
|
to = toOrig.toLowerCase();
|
|
|
|
if (from === to)
|
|
return '';
|
|
|
|
// Trim any leading backslashes
|
|
var fromStart = 0;
|
|
for (; fromStart < from.length; ++fromStart) {
|
|
if (from.charCodeAt(fromStart) !== 92/*\*/)
|
|
break;
|
|
}
|
|
// Trim trailing backslashes (applicable to UNC paths only)
|
|
var fromEnd = from.length;
|
|
for (; fromEnd - 1 > fromStart; --fromEnd) {
|
|
if (from.charCodeAt(fromEnd - 1) !== 92/*\*/)
|
|
break;
|
|
}
|
|
var fromLen = (fromEnd - fromStart);
|
|
|
|
// Trim any leading backslashes
|
|
var toStart = 0;
|
|
for (; toStart < to.length; ++toStart) {
|
|
if (to.charCodeAt(toStart) !== 92/*\*/)
|
|
break;
|
|
}
|
|
// Trim trailing backslashes (applicable to UNC paths only)
|
|
var toEnd = to.length;
|
|
for (; toEnd - 1 > toStart; --toEnd) {
|
|
if (to.charCodeAt(toEnd - 1) !== 92/*\*/)
|
|
break;
|
|
}
|
|
var toLen = (toEnd - toStart);
|
|
|
|
// Compare paths to find the longest common path from root
|
|
var length = (fromLen < toLen ? fromLen : toLen);
|
|
var lastCommonSep = -1;
|
|
var i = 0;
|
|
for (; i <= length; ++i) {
|
|
if (i === length) {
|
|
if (toLen > length) {
|
|
if (to.charCodeAt(toStart + i) === 92/*\*/) {
|
|
// We get here if `from` is the exact base path for `to`.
|
|
// For example: from='C:\\foo\\bar'; to='C:\\foo\\bar\\baz'
|
|
return toOrig.slice(toStart + i + 1);
|
|
} else if (i === 2) {
|
|
// We get here if `from` is the device root.
|
|
// For example: from='C:\\'; to='C:\\foo'
|
|
return toOrig.slice(toStart + i);
|
|
}
|
|
}
|
|
if (fromLen > length) {
|
|
if (from.charCodeAt(fromStart + i) === 92/*\*/) {
|
|
// We get here if `to` is the exact base path for `from`.
|
|
// For example: from='C:\\foo\\bar'; to='C:\\foo'
|
|
lastCommonSep = i;
|
|
} else if (i === 2) {
|
|
// We get here if `to` is the device root.
|
|
// For example: from='C:\\foo\\bar'; to='C:\\'
|
|
lastCommonSep = 3;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
var fromCode = from.charCodeAt(fromStart + i);
|
|
var toCode = to.charCodeAt(toStart + i);
|
|
if (fromCode !== toCode)
|
|
break;
|
|
else if (fromCode === 92/*\*/)
|
|
lastCommonSep = i;
|
|
}
|
|
|
|
// We found a mismatch before the first common path separator was seen, so
|
|
// return the original `to`.
|
|
if (i !== length && lastCommonSep === -1) {
|
|
return toOrig;
|
|
}
|
|
|
|
var out = '';
|
|
if (lastCommonSep === -1)
|
|
lastCommonSep = 0;
|
|
// Generate the relative path based on the path difference between `to` and
|
|
// `from`
|
|
for (i = fromStart + lastCommonSep + 1; i <= fromEnd; ++i) {
|
|
if (i === fromEnd || from.charCodeAt(i) === 92/*\*/) {
|
|
if (out.length === 0)
|
|
out += '..';
|
|
else
|
|
out += '\\..';
|
|
}
|
|
}
|
|
|
|
// Lastly, append the rest of the destination (`to`) path that comes after
|
|
// the common path parts
|
|
if (out.length > 0)
|
|
return out + toOrig.slice(toStart + lastCommonSep, toEnd);
|
|
else {
|
|
toStart += lastCommonSep;
|
|
if (toOrig.charCodeAt(toStart) === 92/*\*/)
|
|
++toStart;
|
|
return toOrig.slice(toStart, toEnd);
|
|
}
|
|
},
|
|
|
|
|
|
_makeLong: function _makeLong(path) {
|
|
// Note: this will *probably* throw somewhere.
|
|
if (typeof path !== 'string')
|
|
return path;
|
|
|
|
if (path.length === 0) {
|
|
return '';
|
|
}
|
|
|
|
const resolvedPath = win32.resolve(path);
|
|
|
|
if (resolvedPath.length >= 3) {
|
|
var code = resolvedPath.charCodeAt(0);
|
|
if (code === 92/*\*/) {
|
|
// Possible UNC root
|
|
|
|
if (resolvedPath.charCodeAt(1) === 92/*\*/) {
|
|
code = resolvedPath.charCodeAt(2);
|
|
if (code !== 63/*?*/ && code !== 46/*.*/) {
|
|
// Matched non-long UNC root, convert the path to a long UNC path
|
|
return '\\\\?\\UNC\\' + resolvedPath.slice(2);
|
|
}
|
|
}
|
|
} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
|
|
(code >= 97/*a*/ && code <= 122/*z*/)) {
|
|
// Possible device root
|
|
|
|
if (resolvedPath.charCodeAt(1) === 58/*:*/ &&
|
|
resolvedPath.charCodeAt(2) === 92/*\*/) {
|
|
// Matched device root, convert the path to a long UNC path
|
|
return '\\\\?\\' + resolvedPath;
|
|
}
|
|
}
|
|
}
|
|
|
|
return path;
|
|
},
|
|
|
|
|
|
dirname: function dirname(path) {
|
|
assertPath(path);
|
|
const len = path.length;
|
|
if (len === 0)
|
|
return '.';
|
|
var rootEnd = -1;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
var offset = 0;
|
|
var code = path.charCodeAt(0);
|
|
|
|
// Try to match a root
|
|
if (len > 1) {
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// Possible UNC root
|
|
|
|
rootEnd = offset = 1;
|
|
|
|
code = path.charCodeAt(1);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// Matched double path separator at beginning
|
|
var j = 2;
|
|
var last = j;
|
|
// Match 1 or more non-path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code === 47/*/*/ || code === 92/*\*/)
|
|
break;
|
|
}
|
|
if (j < len && j !== last) {
|
|
// Matched!
|
|
last = j;
|
|
// Match 1 or more path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code !== 47/*/*/ && code !== 92/*\*/)
|
|
break;
|
|
}
|
|
if (j < len && j !== last) {
|
|
// Matched!
|
|
last = j;
|
|
// Match 1 or more non-path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code === 47/*/*/ || code === 92/*\*/)
|
|
break;
|
|
}
|
|
if (j === len) {
|
|
// We matched a UNC root only
|
|
return path;
|
|
}
|
|
if (j !== last) {
|
|
// We matched a UNC root with leftovers
|
|
|
|
// Offset by 1 to include the separator after the UNC root to
|
|
// treat it as a "normal root" on top of a (UNC) root
|
|
rootEnd = offset = j + 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
|
|
(code >= 97/*a*/ && code <= 122/*z*/)) {
|
|
// Possible device root
|
|
|
|
code = path.charCodeAt(1);
|
|
if (path.charCodeAt(1) === 58/*:*/) {
|
|
rootEnd = offset = 2;
|
|
if (len > 2) {
|
|
code = path.charCodeAt(2);
|
|
if (code === 47/*/*/ || code === 92/*\*/)
|
|
rootEnd = offset = 3;
|
|
}
|
|
}
|
|
}
|
|
} else if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// `path` contains just a path separator, exit early to avoid
|
|
// unnecessary work
|
|
return path;
|
|
}
|
|
|
|
for (var i = len - 1; i >= offset; --i) {
|
|
code = path.charCodeAt(i);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
if (!matchedSlash) {
|
|
end = i;
|
|
break;
|
|
}
|
|
} else {
|
|
// We saw the first non-path separator
|
|
matchedSlash = false;
|
|
}
|
|
}
|
|
|
|
if (end === -1) {
|
|
if (rootEnd === -1)
|
|
return '.';
|
|
else
|
|
end = rootEnd;
|
|
}
|
|
return path.slice(0, end);
|
|
},
|
|
|
|
|
|
basename: function basename(path, ext) {
|
|
if (ext !== undefined && typeof ext !== 'string')
|
|
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'ext', 'string');
|
|
assertPath(path);
|
|
var start = 0;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
var i;
|
|
|
|
// Check for a drive letter prefix so as not to mistake the following
|
|
// path separator as an extra separator at the end of the path that can be
|
|
// disregarded
|
|
if (path.length >= 2) {
|
|
const drive = path.charCodeAt(0);
|
|
if ((drive >= 65/*A*/ && drive <= 90/*Z*/) ||
|
|
(drive >= 97/*a*/ && drive <= 122/*z*/)) {
|
|
if (path.charCodeAt(1) === 58/*:*/)
|
|
start = 2;
|
|
}
|
|
}
|
|
|
|
if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {
|
|
if (ext.length === path.length && ext === path)
|
|
return '';
|
|
var extIdx = ext.length - 1;
|
|
var firstNonSlashEnd = -1;
|
|
for (i = path.length - 1; i >= start; --i) {
|
|
const code = path.charCodeAt(i);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
start = i + 1;
|
|
break;
|
|
}
|
|
} else {
|
|
if (firstNonSlashEnd === -1) {
|
|
// We saw the first non-path separator, remember this index in case
|
|
// we need it if the extension ends up not matching
|
|
matchedSlash = false;
|
|
firstNonSlashEnd = i + 1;
|
|
}
|
|
if (extIdx >= 0) {
|
|
// Try to match the explicit extension
|
|
if (code === ext.charCodeAt(extIdx)) {
|
|
if (--extIdx === -1) {
|
|
// We matched the extension, so mark this as the end of our path
|
|
// component
|
|
end = i;
|
|
}
|
|
} else {
|
|
// Extension does not match, so our result is the entire path
|
|
// component
|
|
extIdx = -1;
|
|
end = firstNonSlashEnd;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (start === end)
|
|
end = firstNonSlashEnd;
|
|
else if (end === -1)
|
|
end = path.length;
|
|
return path.slice(start, end);
|
|
} else {
|
|
for (i = path.length - 1; i >= start; --i) {
|
|
const code = path.charCodeAt(i);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
start = i + 1;
|
|
break;
|
|
}
|
|
} else if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// path component
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
}
|
|
|
|
if (end === -1)
|
|
return '';
|
|
return path.slice(start, end);
|
|
}
|
|
},
|
|
|
|
|
|
extname: function extname(path) {
|
|
assertPath(path);
|
|
var start = 0;
|
|
var startDot = -1;
|
|
var startPart = 0;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
// Track the state of characters (if any) we see before our first dot and
|
|
// after any path separator we find
|
|
var preDotState = 0;
|
|
|
|
// Check for a drive letter prefix so as not to mistake the following
|
|
// path separator as an extra separator at the end of the path that can be
|
|
// disregarded
|
|
if (path.length >= 2) {
|
|
const code = path.charCodeAt(0);
|
|
if (path.charCodeAt(1) === 58/*:*/ &&
|
|
((code >= 65/*A*/ && code <= 90/*Z*/) ||
|
|
(code >= 97/*a*/ && code <= 122/*z*/))) {
|
|
start = startPart = 2;
|
|
}
|
|
}
|
|
|
|
for (var i = path.length - 1; i >= start; --i) {
|
|
const code = path.charCodeAt(i);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
startPart = i + 1;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// extension
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
if (code === 46/*.*/) {
|
|
// If this is our first dot, mark it as the start of our extension
|
|
if (startDot === -1)
|
|
startDot = i;
|
|
else if (preDotState !== 1)
|
|
preDotState = 1;
|
|
} else if (startDot !== -1) {
|
|
// We saw a non-dot and non-path separator before our dot, so we should
|
|
// have a good chance at having a non-empty extension
|
|
preDotState = -1;
|
|
}
|
|
}
|
|
|
|
if (startDot === -1 ||
|
|
end === -1 ||
|
|
// We saw a non-dot character immediately before the dot
|
|
preDotState === 0 ||
|
|
// The (right-most) trimmed path component is exactly '..'
|
|
(preDotState === 1 &&
|
|
startDot === end - 1 &&
|
|
startDot === startPart + 1)) {
|
|
return '';
|
|
}
|
|
return path.slice(startDot, end);
|
|
},
|
|
|
|
|
|
format: function format(pathObject) {
|
|
if (pathObject === null || typeof pathObject !== 'object') {
|
|
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'pathObject', 'Object',
|
|
pathObject);
|
|
}
|
|
return _format('\\', pathObject);
|
|
},
|
|
|
|
|
|
parse: function parse(path) {
|
|
assertPath(path);
|
|
|
|
var ret = { root: '', dir: '', base: '', ext: '', name: '' };
|
|
if (path.length === 0)
|
|
return ret;
|
|
|
|
var len = path.length;
|
|
var rootEnd = 0;
|
|
var code = path.charCodeAt(0);
|
|
|
|
// Try to match a root
|
|
if (len > 1) {
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// Possible UNC root
|
|
|
|
code = path.charCodeAt(1);
|
|
rootEnd = 1;
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// Matched double path separator at beginning
|
|
var j = 2;
|
|
var last = j;
|
|
// Match 1 or more non-path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code === 47/*/*/ || code === 92/*\*/)
|
|
break;
|
|
}
|
|
if (j < len && j !== last) {
|
|
// Matched!
|
|
last = j;
|
|
// Match 1 or more path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code !== 47/*/*/ && code !== 92/*\*/)
|
|
break;
|
|
}
|
|
if (j < len && j !== last) {
|
|
// Matched!
|
|
last = j;
|
|
// Match 1 or more non-path separators
|
|
for (; j < len; ++j) {
|
|
code = path.charCodeAt(j);
|
|
if (code === 47/*/*/ || code === 92/*\*/)
|
|
break;
|
|
}
|
|
if (j === len) {
|
|
// We matched a UNC root only
|
|
|
|
rootEnd = j;
|
|
} else if (j !== last) {
|
|
// We matched a UNC root with leftovers
|
|
|
|
rootEnd = j + 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if ((code >= 65/*A*/ && code <= 90/*Z*/) ||
|
|
(code >= 97/*a*/ && code <= 122/*z*/)) {
|
|
// Possible device root
|
|
|
|
code = path.charCodeAt(1);
|
|
if (path.charCodeAt(1) === 58/*:*/) {
|
|
rootEnd = 2;
|
|
if (len > 2) {
|
|
code = path.charCodeAt(2);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
if (len === 3) {
|
|
// `path` contains just a drive root, exit early to avoid
|
|
// unnecessary work
|
|
ret.root = ret.dir = path;
|
|
return ret;
|
|
}
|
|
rootEnd = 3;
|
|
}
|
|
} else {
|
|
// `path` contains just a drive root, exit early to avoid
|
|
// unnecessary work
|
|
ret.root = ret.dir = path;
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
} else if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// `path` contains just a path separator, exit early to avoid
|
|
// unnecessary work
|
|
ret.root = ret.dir = path;
|
|
return ret;
|
|
}
|
|
|
|
if (rootEnd > 0)
|
|
ret.root = path.slice(0, rootEnd);
|
|
|
|
var startDot = -1;
|
|
var startPart = rootEnd;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
var i = path.length - 1;
|
|
|
|
// Track the state of characters (if any) we see before our first dot and
|
|
// after any path separator we find
|
|
var preDotState = 0;
|
|
|
|
// Get non-dir info
|
|
for (; i >= rootEnd; --i) {
|
|
code = path.charCodeAt(i);
|
|
if (code === 47/*/*/ || code === 92/*\*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
startPart = i + 1;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// extension
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
if (code === 46/*.*/) {
|
|
// If this is our first dot, mark it as the start of our extension
|
|
if (startDot === -1)
|
|
startDot = i;
|
|
else if (preDotState !== 1)
|
|
preDotState = 1;
|
|
} else if (startDot !== -1) {
|
|
// We saw a non-dot and non-path separator before our dot, so we should
|
|
// have a good chance at having a non-empty extension
|
|
preDotState = -1;
|
|
}
|
|
}
|
|
|
|
if (startDot === -1 ||
|
|
end === -1 ||
|
|
// We saw a non-dot character immediately before the dot
|
|
preDotState === 0 ||
|
|
// The (right-most) trimmed path component is exactly '..'
|
|
(preDotState === 1 &&
|
|
startDot === end - 1 &&
|
|
startDot === startPart + 1)) {
|
|
if (end !== -1) {
|
|
ret.base = ret.name = path.slice(startPart, end);
|
|
}
|
|
} else {
|
|
ret.name = path.slice(startPart, startDot);
|
|
ret.base = path.slice(startPart, end);
|
|
ret.ext = path.slice(startDot, end);
|
|
}
|
|
|
|
// If the directory is the root, use the entire root as the `dir` including
|
|
// the trailing slash if any (`C:\abc` -> `C:\`). Otherwise, strip out the
|
|
// trailing slash (`C:\abc\def` -> `C:\abc`).
|
|
if (startPart > 0 && startPart !== rootEnd)
|
|
ret.dir = path.slice(0, startPart - 1);
|
|
else
|
|
ret.dir = ret.root;
|
|
|
|
return ret;
|
|
},
|
|
|
|
|
|
sep: '\\',
|
|
delimiter: ';',
|
|
win32: null,
|
|
posix: null
|
|
};
|
|
|
|
|
|
const posix = {
|
|
// path.resolve([from ...], to)
|
|
resolve: function resolve() {
|
|
var resolvedPath = '';
|
|
var resolvedAbsolute = false;
|
|
var cwd;
|
|
|
|
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
|
var path;
|
|
if (i >= 0)
|
|
path = arguments[i];
|
|
else {
|
|
if (cwd === undefined)
|
|
cwd = process.cwd();
|
|
path = cwd;
|
|
}
|
|
|
|
assertPath(path);
|
|
|
|
// Skip empty entries
|
|
if (path.length === 0) {
|
|
continue;
|
|
}
|
|
|
|
resolvedPath = path + '/' + resolvedPath;
|
|
resolvedAbsolute = path.charCodeAt(0) === 47/*/*/;
|
|
}
|
|
|
|
// At this point the path should be resolved to a full absolute path, but
|
|
// handle relative paths to be safe (might happen when process.cwd() fails)
|
|
|
|
// Normalize the path
|
|
resolvedPath = normalizeStringPosix(resolvedPath, !resolvedAbsolute);
|
|
|
|
if (resolvedAbsolute) {
|
|
if (resolvedPath.length > 0)
|
|
return '/' + resolvedPath;
|
|
else
|
|
return '/';
|
|
} else if (resolvedPath.length > 0) {
|
|
return resolvedPath;
|
|
} else {
|
|
return '.';
|
|
}
|
|
},
|
|
|
|
|
|
normalize: function normalize(path) {
|
|
assertPath(path);
|
|
|
|
if (path.length === 0)
|
|
return '.';
|
|
|
|
const isAbsolute = path.charCodeAt(0) === 47/*/*/;
|
|
const trailingSeparator = path.charCodeAt(path.length - 1) === 47/*/*/;
|
|
|
|
// Normalize the path
|
|
path = normalizeStringPosix(path, !isAbsolute);
|
|
|
|
if (path.length === 0 && !isAbsolute)
|
|
path = '.';
|
|
if (path.length > 0 && trailingSeparator)
|
|
path += '/';
|
|
|
|
if (isAbsolute)
|
|
return '/' + path;
|
|
return path;
|
|
},
|
|
|
|
|
|
isAbsolute: function isAbsolute(path) {
|
|
assertPath(path);
|
|
return path.length > 0 && path.charCodeAt(0) === 47/*/*/;
|
|
},
|
|
|
|
|
|
join: function join() {
|
|
if (arguments.length === 0)
|
|
return '.';
|
|
var joined;
|
|
for (var i = 0; i < arguments.length; ++i) {
|
|
var arg = arguments[i];
|
|
assertPath(arg);
|
|
if (arg.length > 0) {
|
|
if (joined === undefined)
|
|
joined = arg;
|
|
else
|
|
joined += '/' + arg;
|
|
}
|
|
}
|
|
if (joined === undefined)
|
|
return '.';
|
|
return posix.normalize(joined);
|
|
},
|
|
|
|
|
|
relative: function relative(from, to) {
|
|
assertPath(from);
|
|
assertPath(to);
|
|
|
|
if (from === to)
|
|
return '';
|
|
|
|
from = posix.resolve(from);
|
|
to = posix.resolve(to);
|
|
|
|
if (from === to)
|
|
return '';
|
|
|
|
// Trim any leading backslashes
|
|
var fromStart = 1;
|
|
for (; fromStart < from.length; ++fromStart) {
|
|
if (from.charCodeAt(fromStart) !== 47/*/*/)
|
|
break;
|
|
}
|
|
var fromEnd = from.length;
|
|
var fromLen = (fromEnd - fromStart);
|
|
|
|
// Trim any leading backslashes
|
|
var toStart = 1;
|
|
for (; toStart < to.length; ++toStart) {
|
|
if (to.charCodeAt(toStart) !== 47/*/*/)
|
|
break;
|
|
}
|
|
var toEnd = to.length;
|
|
var toLen = (toEnd - toStart);
|
|
|
|
// Compare paths to find the longest common path from root
|
|
var length = (fromLen < toLen ? fromLen : toLen);
|
|
var lastCommonSep = -1;
|
|
var i = 0;
|
|
for (; i <= length; ++i) {
|
|
if (i === length) {
|
|
if (toLen > length) {
|
|
if (to.charCodeAt(toStart + i) === 47/*/*/) {
|
|
// We get here if `from` is the exact base path for `to`.
|
|
// For example: from='/foo/bar'; to='/foo/bar/baz'
|
|
return to.slice(toStart + i + 1);
|
|
} else if (i === 0) {
|
|
// We get here if `from` is the root
|
|
// For example: from='/'; to='/foo'
|
|
return to.slice(toStart + i);
|
|
}
|
|
} else if (fromLen > length) {
|
|
if (from.charCodeAt(fromStart + i) === 47/*/*/) {
|
|
// We get here if `to` is the exact base path for `from`.
|
|
// For example: from='/foo/bar/baz'; to='/foo/bar'
|
|
lastCommonSep = i;
|
|
} else if (i === 0) {
|
|
// We get here if `to` is the root.
|
|
// For example: from='/foo'; to='/'
|
|
lastCommonSep = 0;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
var fromCode = from.charCodeAt(fromStart + i);
|
|
var toCode = to.charCodeAt(toStart + i);
|
|
if (fromCode !== toCode)
|
|
break;
|
|
else if (fromCode === 47/*/*/)
|
|
lastCommonSep = i;
|
|
}
|
|
|
|
var out = '';
|
|
// Generate the relative path based on the path difference between `to`
|
|
// and `from`
|
|
for (i = fromStart + lastCommonSep + 1; i <= fromEnd; ++i) {
|
|
if (i === fromEnd || from.charCodeAt(i) === 47/*/*/) {
|
|
if (out.length === 0)
|
|
out += '..';
|
|
else
|
|
out += '/..';
|
|
}
|
|
}
|
|
|
|
// Lastly, append the rest of the destination (`to`) path that comes after
|
|
// the common path parts
|
|
if (out.length > 0)
|
|
return out + to.slice(toStart + lastCommonSep);
|
|
else {
|
|
toStart += lastCommonSep;
|
|
if (to.charCodeAt(toStart) === 47/*/*/)
|
|
++toStart;
|
|
return to.slice(toStart);
|
|
}
|
|
},
|
|
|
|
|
|
_makeLong: function _makeLong(path) {
|
|
return path;
|
|
},
|
|
|
|
|
|
dirname: function dirname(path) {
|
|
assertPath(path);
|
|
if (path.length === 0)
|
|
return '.';
|
|
var code = path.charCodeAt(0);
|
|
var hasRoot = (code === 47/*/*/);
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
for (var i = path.length - 1; i >= 1; --i) {
|
|
code = path.charCodeAt(i);
|
|
if (code === 47/*/*/) {
|
|
if (!matchedSlash) {
|
|
end = i;
|
|
break;
|
|
}
|
|
} else {
|
|
// We saw the first non-path separator
|
|
matchedSlash = false;
|
|
}
|
|
}
|
|
|
|
if (end === -1)
|
|
return hasRoot ? '/' : '.';
|
|
if (hasRoot && end === 1)
|
|
return '//';
|
|
return path.slice(0, end);
|
|
},
|
|
|
|
|
|
basename: function basename(path, ext) {
|
|
if (ext !== undefined && typeof ext !== 'string')
|
|
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'ext', 'string');
|
|
assertPath(path);
|
|
|
|
var start = 0;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
var i;
|
|
|
|
if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {
|
|
if (ext.length === path.length && ext === path)
|
|
return '';
|
|
var extIdx = ext.length - 1;
|
|
var firstNonSlashEnd = -1;
|
|
for (i = path.length - 1; i >= 0; --i) {
|
|
const code = path.charCodeAt(i);
|
|
if (code === 47/*/*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
start = i + 1;
|
|
break;
|
|
}
|
|
} else {
|
|
if (firstNonSlashEnd === -1) {
|
|
// We saw the first non-path separator, remember this index in case
|
|
// we need it if the extension ends up not matching
|
|
matchedSlash = false;
|
|
firstNonSlashEnd = i + 1;
|
|
}
|
|
if (extIdx >= 0) {
|
|
// Try to match the explicit extension
|
|
if (code === ext.charCodeAt(extIdx)) {
|
|
if (--extIdx === -1) {
|
|
// We matched the extension, so mark this as the end of our path
|
|
// component
|
|
end = i;
|
|
}
|
|
} else {
|
|
// Extension does not match, so our result is the entire path
|
|
// component
|
|
extIdx = -1;
|
|
end = firstNonSlashEnd;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (start === end)
|
|
end = firstNonSlashEnd;
|
|
else if (end === -1)
|
|
end = path.length;
|
|
return path.slice(start, end);
|
|
} else {
|
|
for (i = path.length - 1; i >= 0; --i) {
|
|
if (path.charCodeAt(i) === 47/*/*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
start = i + 1;
|
|
break;
|
|
}
|
|
} else if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// path component
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
}
|
|
|
|
if (end === -1)
|
|
return '';
|
|
return path.slice(start, end);
|
|
}
|
|
},
|
|
|
|
|
|
extname: function extname(path) {
|
|
assertPath(path);
|
|
var startDot = -1;
|
|
var startPart = 0;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
// Track the state of characters (if any) we see before our first dot and
|
|
// after any path separator we find
|
|
var preDotState = 0;
|
|
for (var i = path.length - 1; i >= 0; --i) {
|
|
const code = path.charCodeAt(i);
|
|
if (code === 47/*/*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
startPart = i + 1;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// extension
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
if (code === 46/*.*/) {
|
|
// If this is our first dot, mark it as the start of our extension
|
|
if (startDot === -1)
|
|
startDot = i;
|
|
else if (preDotState !== 1)
|
|
preDotState = 1;
|
|
} else if (startDot !== -1) {
|
|
// We saw a non-dot and non-path separator before our dot, so we should
|
|
// have a good chance at having a non-empty extension
|
|
preDotState = -1;
|
|
}
|
|
}
|
|
|
|
if (startDot === -1 ||
|
|
end === -1 ||
|
|
// We saw a non-dot character immediately before the dot
|
|
preDotState === 0 ||
|
|
// The (right-most) trimmed path component is exactly '..'
|
|
(preDotState === 1 &&
|
|
startDot === end - 1 &&
|
|
startDot === startPart + 1)) {
|
|
return '';
|
|
}
|
|
return path.slice(startDot, end);
|
|
},
|
|
|
|
|
|
format: function format(pathObject) {
|
|
if (pathObject === null || typeof pathObject !== 'object') {
|
|
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'pathObject', 'Object',
|
|
pathObject);
|
|
}
|
|
return _format('/', pathObject);
|
|
},
|
|
|
|
|
|
parse: function parse(path) {
|
|
assertPath(path);
|
|
|
|
var ret = { root: '', dir: '', base: '', ext: '', name: '' };
|
|
if (path.length === 0)
|
|
return ret;
|
|
var code = path.charCodeAt(0);
|
|
var isAbsolute = (code === 47/*/*/);
|
|
var start;
|
|
if (isAbsolute) {
|
|
ret.root = '/';
|
|
start = 1;
|
|
} else {
|
|
start = 0;
|
|
}
|
|
var startDot = -1;
|
|
var startPart = 0;
|
|
var end = -1;
|
|
var matchedSlash = true;
|
|
var i = path.length - 1;
|
|
|
|
// Track the state of characters (if any) we see before our first dot and
|
|
// after any path separator we find
|
|
var preDotState = 0;
|
|
|
|
// Get non-dir info
|
|
for (; i >= start; --i) {
|
|
code = path.charCodeAt(i);
|
|
if (code === 47/*/*/) {
|
|
// If we reached a path separator that was not part of a set of path
|
|
// separators at the end of the string, stop now
|
|
if (!matchedSlash) {
|
|
startPart = i + 1;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
if (end === -1) {
|
|
// We saw the first non-path separator, mark this as the end of our
|
|
// extension
|
|
matchedSlash = false;
|
|
end = i + 1;
|
|
}
|
|
if (code === 46/*.*/) {
|
|
// If this is our first dot, mark it as the start of our extension
|
|
if (startDot === -1)
|
|
startDot = i;
|
|
else if (preDotState !== 1)
|
|
preDotState = 1;
|
|
} else if (startDot !== -1) {
|
|
// We saw a non-dot and non-path separator before our dot, so we should
|
|
// have a good chance at having a non-empty extension
|
|
preDotState = -1;
|
|
}
|
|
}
|
|
|
|
if (startDot === -1 ||
|
|
end === -1 ||
|
|
// We saw a non-dot character immediately before the dot
|
|
preDotState === 0 ||
|
|
// The (right-most) trimmed path component is exactly '..'
|
|
(preDotState === 1 &&
|
|
startDot === end - 1 &&
|
|
startDot === startPart + 1)) {
|
|
if (end !== -1) {
|
|
if (startPart === 0 && isAbsolute)
|
|
ret.base = ret.name = path.slice(1, end);
|
|
else
|
|
ret.base = ret.name = path.slice(startPart, end);
|
|
}
|
|
} else {
|
|
if (startPart === 0 && isAbsolute) {
|
|
ret.name = path.slice(1, startDot);
|
|
ret.base = path.slice(1, end);
|
|
} else {
|
|
ret.name = path.slice(startPart, startDot);
|
|
ret.base = path.slice(startPart, end);
|
|
}
|
|
ret.ext = path.slice(startDot, end);
|
|
}
|
|
|
|
if (startPart > 0)
|
|
ret.dir = path.slice(0, startPart - 1);
|
|
else if (isAbsolute)
|
|
ret.dir = '/';
|
|
|
|
return ret;
|
|
},
|
|
|
|
|
|
sep: '/',
|
|
delimiter: ':',
|
|
win32: null,
|
|
posix: null
|
|
};
|
|
|
|
|
|
posix.win32 = win32.win32 = win32;
|
|
posix.posix = win32.posix = posix;
|
|
|
|
|
|
if (process.platform === 'win32')
|
|
module.exports = win32;
|
|
else
|
|
module.exports = posix;
|