Press n or j to go to the next uncovered block, b, p or k for the previous block.
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1355614x 1510862x 49269x 49269x 49277x 48632x 49277x 48554x 48554x 48554x 49277x 719x 719x 48550x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 205x 205x 205x 205x 205x 191x 191x 191x 197x 183x 183x 197x 8x 8x 191x 191x 191x 191x 191x 191x 191x 191x 191x 191x 191x 197x 1130x 1130x 120x 120x 120x 113x 113x 113x 7x 7x 1130x 157x 157x 157x 157x 157x 1130x 80x 80x 80x 32x 32x 1130x 183x 183x 183x 183x 1130x 191x 197x 157x 157x 48x 157x 43x 43x 43x 157x 115x 157x 42x 42x 42x 42x 157x 191x 191x 197x 78x 78x 191x 191x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x | // Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const {
FunctionPrototypeBind,
StringPrototypeCharCodeAt,
StringPrototypeIndexOf,
StringPrototypeLastIndexOf,
StringPrototypeReplace,
StringPrototypeSlice,
StringPrototypeToLowerCase,
} = primordials;
const {
CHAR_UPPERCASE_A,
CHAR_LOWERCASE_A,
CHAR_UPPERCASE_Z,
CHAR_LOWERCASE_Z,
CHAR_DOT,
CHAR_FORWARD_SLASH,
CHAR_BACKWARD_SLASH,
CHAR_COLON,
CHAR_QUESTION_MARK,
} = require('internal/constants');
const {
validateObject,
validateString,
} = require('internal/validators');
const platformIsWin32 = (process.platform === 'win32');
function isPathSeparator(code) {
return code === CHAR_FORWARD_SLASH || code === CHAR_BACKWARD_SLASH;
}
function isPosixPathSeparator(code) {
return code === CHAR_FORWARD_SLASH;
}
function isWindowsDeviceRoot(code) {
return (code >= CHAR_UPPERCASE_A && code <= CHAR_UPPERCASE_Z) ||
(code >= CHAR_LOWERCASE_A && code <= CHAR_LOWERCASE_Z);
}
// Resolves . and .. elements in a path with directory names
function normalizeString(path, allowAboveRoot, separator, isPathSeparator) {
let res = '';
let lastSegmentLength = 0;
let lastSlash = -1;
let dots = 0;
let code = 0;
for (let i = 0; i <= path.length; ++i) {
if (i < path.length)
code = StringPrototypeCharCodeAt(path, i);
else if (isPathSeparator(code))
break;
else
code = CHAR_FORWARD_SLASH;
if (isPathSeparator(code)) {
if (lastSlash === i - 1 || dots === 1) {
// NOOP
} else if (dots === 2) {
if (res.length < 2 || lastSegmentLength !== 2 ||
StringPrototypeCharCodeAt(res, res.length - 1) !== CHAR_DOT ||
StringPrototypeCharCodeAt(res, res.length - 2) !== CHAR_DOT) {
if (res.length > 2) {
const lastSlashIndex = StringPrototypeLastIndexOf(res, separator);
if (lastSlashIndex === -1) {
res = '';
lastSegmentLength = 0;
} else {
res = StringPrototypeSlice(res, 0, lastSlashIndex);
lastSegmentLength =
res.length - 1 - StringPrototypeLastIndexOf(res, separator);
}
lastSlash = i;
dots = 0;
continue;
} else if (res.length !== 0) {
res = '';
lastSegmentLength = 0;
lastSlash = i;
dots = 0;
continue;
}
}
if (allowAboveRoot) {
res += res.length > 0 ? `${separator}..` : '..';
lastSegmentLength = 2;
}
} else {
if (res.length > 0)
res += `${separator}${StringPrototypeSlice(path, lastSlash + 1, i)}`;
else
res = StringPrototypeSlice(path, lastSlash + 1, i);
lastSegmentLength = i - lastSlash - 1;
}
lastSlash = i;
dots = 0;
} else if (code === CHAR_DOT && dots !== -1) {
++dots;
} else {
dots = -1;
}
}
return res;
}
/**
* @param {string} sep
* @param {{
* dir?: string;
* root?: string;
* base?: string;
* name?: string;
* ext?: string;
* }} pathObject
* @returns {string}
*/
function _format(sep, pathObject) {
validateObject(pathObject, 'pathObject');
const dir = pathObject.dir || pathObject.root;
const base = pathObject.base ||
`${pathObject.name || ''}${pathObject.ext || ''}`;
if (!dir) {
return base;
}
return dir === pathObject.root ? `${dir}${base}` : `${dir}${sep}${base}`;
}
const win32 = {
/**
* path.resolve([from ...], to)
* @param {...string} args
* @returns {string}
*/
resolve(...args) {
let resolvedDevice = '';
let resolvedTail = '';
let resolvedAbsolute = false;
for (let i = args.length - 1; i >= -1; i--) {
let path;
if (i >= 0) {
path = args[i];
validateString(path, 'path');
// Skip empty entries
if (path.length === 0) {
continue;
}
} else if (resolvedDevice.length === 0) {
path = process.cwd();
} else {
// Windows has the concept of drive-specific current working
// directories. If we've resolved a drive letter but not yet an
// absolute path, get cwd for that drive, or the process cwd if
// the drive cwd is not available. We're sure the device is not
// a UNC path at this points, because UNC paths are always absolute.
path = process.env[`=${resolvedDevice}`] || process.cwd();
// Verify that a cwd was found and that it actually points
// to our drive. If not, default to the drive's root.
if (path === undefined ||
(StringPrototypeToLowerCase(StringPrototypeSlice(path, 0, 2)) !==
StringPrototypeToLowerCase(resolvedDevice) &&
StringPrototypeCharCodeAt(path, 2) === CHAR_BACKWARD_SLASH)) {
path = `${resolvedDevice}\\`;
}
}
const len = path.length;
let rootEnd = 0;
let device = '';
let isAbsolute = false;
const code = StringPrototypeCharCodeAt(path, 0);
// Try to match a root
if (len === 1) {
if (isPathSeparator(code)) {
// `path` contains just a path separator
rootEnd = 1;
isAbsolute = true;
}
} else if (isPathSeparator(code)) {
// Possible UNC root
// If we started with a separator, we know we at least have an
// absolute path of some kind (UNC or otherwise)
isAbsolute = true;
if (isPathSeparator(StringPrototypeCharCodeAt(path, 1))) {
// Matched double path separator at beginning
let j = 2;
let last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
const firstPart = StringPrototypeSlice(path, last, j);
// Matched!
last = j;
// Match 1 or more path separators
while (j < len &&
isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j === len || j !== last) {
// We matched a UNC root
device =
`\\\\${firstPart}\\${StringPrototypeSlice(path, last, j)}`;
rootEnd = j;
}
}
}
} else {
rootEnd = 1;
}
} else if (isWindowsDeviceRoot(code) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON) {
// Possible device root
device = StringPrototypeSlice(path, 0, 2);
rootEnd = 2;
if (len > 2 && isPathSeparator(StringPrototypeCharCodeAt(path, 2))) {
// Treat separator following drive name as an absolute path
// indicator
isAbsolute = true;
rootEnd = 3;
}
}
if (device.length > 0) {
if (resolvedDevice.length > 0) {
if (StringPrototypeToLowerCase(device) !==
StringPrototypeToLowerCase(resolvedDevice))
// This path points to another device so it is not applicable
continue;
} else {
resolvedDevice = device;
}
}
if (resolvedAbsolute) {
if (resolvedDevice.length > 0)
break;
} else {
resolvedTail =
`${StringPrototypeSlice(path, rootEnd)}\\${resolvedTail}`;
resolvedAbsolute = isAbsolute;
if (isAbsolute && resolvedDevice.length > 0) {
break;
}
}
}
// 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 tail path
resolvedTail = normalizeString(resolvedTail, !resolvedAbsolute, '\\',
isPathSeparator);
return resolvedAbsolute ?
`${resolvedDevice}\\${resolvedTail}` :
`${resolvedDevice}${resolvedTail}` || '.';
},
/**
* @param {string} path
* @returns {string}
*/
normalize(path) {
validateString(path, 'path');
const len = path.length;
if (len === 0)
return '.';
let rootEnd = 0;
let device;
let isAbsolute = false;
const code = StringPrototypeCharCodeAt(path, 0);
// Try to match a root
if (len === 1) {
// `path` contains just a single char, exit early to avoid
// unnecessary work
return isPosixPathSeparator(code) ? '\\' : path;
}
if (isPathSeparator(code)) {
// Possible UNC root
// If we started with a separator, we know we at least have an absolute
// path of some kind (UNC or otherwise)
isAbsolute = true;
if (isPathSeparator(StringPrototypeCharCodeAt(path, 1))) {
// Matched double path separator at beginning
let j = 2;
let last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
const firstPart = StringPrototypeSlice(path, last, j);
// Matched!
last = j;
// Match 1 or more path separators
while (j < len &&
isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j === len) {
// We matched a UNC root only
// Return the normalized version of the UNC root since there
// is nothing left to process
return `\\\\${firstPart}\\${StringPrototypeSlice(path, last)}\\`;
}
if (j !== last) {
// We matched a UNC root with leftovers
device =
`\\\\${firstPart}\\${StringPrototypeSlice(path, last, j)}`;
rootEnd = j;
}
}
}
} else {
rootEnd = 1;
}
} else if (isWindowsDeviceRoot(code) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON) {
// Possible device root
device = StringPrototypeSlice(path, 0, 2);
rootEnd = 2;
if (len > 2 && isPathSeparator(StringPrototypeCharCodeAt(path, 2))) {
// Treat separator following drive name as an absolute path
// indicator
isAbsolute = true;
rootEnd = 3;
}
}
let tail = rootEnd < len ?
normalizeString(StringPrototypeSlice(path, rootEnd),
!isAbsolute, '\\', isPathSeparator) :
'';
if (tail.length === 0 && !isAbsolute)
tail = '.';
if (tail.length > 0 &&
isPathSeparator(StringPrototypeCharCodeAt(path, len - 1)))
tail += '\\';
if (device === undefined) {
return isAbsolute ? `\\${tail}` : tail;
}
return isAbsolute ? `${device}\\${tail}` : `${device}${tail}`;
},
/**
* @param {string} path
* @returns {boolean}
*/
isAbsolute(path) {
validateString(path, 'path');
const len = path.length;
if (len === 0)
return false;
const code = StringPrototypeCharCodeAt(path, 0);
return isPathSeparator(code) ||
// Possible device root
(len > 2 &&
isWindowsDeviceRoot(code) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON &&
isPathSeparator(StringPrototypeCharCodeAt(path, 2)));
},
/**
* @param {...string} args
* @returns {string}
*/
join(...args) {
if (args.length === 0)
return '.';
let joined;
let firstPart;
for (let i = 0; i < args.length; ++i) {
const arg = args[i];
validateString(arg, 'path');
if (arg.length > 0) {
if (joined === undefined)
joined = firstPart = arg;
else
joined += `\\${arg}`;
}
}
if (joined === undefined)
return '.';
// Make sure that the joined path doesn't start with two slashes, because
// normalize() will mistake it for a UNC path then.
//
// This step is skipped when it is very clear that the user actually
// intended to point at a UNC path. This is assumed when the first
// non-empty string arguments starts with exactly two slashes followed by
// at least one more non-slash character.
//
// Note that for normalize() to treat a path as a UNC path it needs to
// have at least 2 components, so we don't filter for that here.
// This means that the user can use join to construct UNC paths from
// a server name and a share name; for example:
// path.join('//server', 'share') -> '\\\\server\\share\\')
let needsReplace = true;
let slashCount = 0;
if (isPathSeparator(StringPrototypeCharCodeAt(firstPart, 0))) {
++slashCount;
const firstLen = firstPart.length;
if (firstLen > 1 &&
isPathSeparator(StringPrototypeCharCodeAt(firstPart, 1))) {
++slashCount;
if (firstLen > 2) {
if (isPathSeparator(StringPrototypeCharCodeAt(firstPart, 2)))
++slashCount;
else {
// We matched a UNC path in the first part
needsReplace = false;
}
}
}
}
if (needsReplace) {
// Find any more consecutive slashes we need to replace
while (slashCount < joined.length &&
isPathSeparator(StringPrototypeCharCodeAt(joined, slashCount))) {
slashCount++;
}
// Replace the slashes if needed
if (slashCount >= 2)
joined = `\\${StringPrototypeSlice(joined, 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'
* @param {string} from
* @param {string} to
* @returns {string}
*/
relative(from, to) {
validateString(from, 'from');
validateString(to, 'to');
if (from === to)
return '';
const fromOrig = win32.resolve(from);
const toOrig = win32.resolve(to);
if (fromOrig === toOrig)
return '';
from = StringPrototypeToLowerCase(fromOrig);
to = StringPrototypeToLowerCase(toOrig);
if (from === to)
return '';
// Trim any leading backslashes
let fromStart = 0;
while (fromStart < from.length &&
StringPrototypeCharCodeAt(from, fromStart) === CHAR_BACKWARD_SLASH) {
fromStart++;
}
// Trim trailing backslashes (applicable to UNC paths only)
let fromEnd = from.length;
while (
fromEnd - 1 > fromStart &&
StringPrototypeCharCodeAt(from, fromEnd - 1) === CHAR_BACKWARD_SLASH
) {
fromEnd--;
}
const fromLen = fromEnd - fromStart;
// Trim any leading backslashes
let toStart = 0;
while (toStart < to.length &&
StringPrototypeCharCodeAt(to, toStart) === CHAR_BACKWARD_SLASH) {
toStart++;
}
// Trim trailing backslashes (applicable to UNC paths only)
let toEnd = to.length;
while (toEnd - 1 > toStart &&
StringPrototypeCharCodeAt(to, toEnd - 1) === CHAR_BACKWARD_SLASH) {
toEnd--;
}
const toLen = toEnd - toStart;
// Compare paths to find the longest common path from root
const length = fromLen < toLen ? fromLen : toLen;
let lastCommonSep = -1;
let i = 0;
for (; i < length; i++) {
const fromCode = StringPrototypeCharCodeAt(from, fromStart + i);
if (fromCode !== StringPrototypeCharCodeAt(to, toStart + i))
break;
else if (fromCode === CHAR_BACKWARD_SLASH)
lastCommonSep = i;
}
// We found a mismatch before the first common path separator was seen, so
// return the original `to`.
if (i !== length) {
if (lastCommonSep === -1)
return toOrig;
} else {
if (toLen > length) {
if (StringPrototypeCharCodeAt(to, toStart + i) ===
CHAR_BACKWARD_SLASH) {
// We get here if `from` is the exact base path for `to`.
// For example: from='C:\\foo\\bar'; to='C:\\foo\\bar\\baz'
return StringPrototypeSlice(toOrig, toStart + i + 1);
}
if (i === 2) {
// We get here if `from` is the device root.
// For example: from='C:\\'; to='C:\\foo'
return StringPrototypeSlice(toOrig, toStart + i);
}
}
if (fromLen > length) {
if (StringPrototypeCharCodeAt(from, fromStart + i) ===
CHAR_BACKWARD_SLASH) {
// 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;
}
}
if (lastCommonSep === -1)
lastCommonSep = 0;
}
let 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 ||
StringPrototypeCharCodeAt(from, i) === CHAR_BACKWARD_SLASH) {
out += out.length === 0 ? '..' : '\\..';
}
}
toStart += lastCommonSep;
// Lastly, append the rest of the destination (`to`) path that comes after
// the common path parts
if (out.length > 0)
return `${out}${StringPrototypeSlice(toOrig, toStart, toEnd)}`;
if (StringPrototypeCharCodeAt(toOrig, toStart) === CHAR_BACKWARD_SLASH)
++toStart;
return StringPrototypeSlice(toOrig, toStart, toEnd);
},
/**
* @param {string} path
* @returns {string}
*/
toNamespacedPath(path) {
// Note: this will *probably* throw somewhere.
if (typeof path !== 'string' || path.length === 0)
return path;
const resolvedPath = win32.resolve(path);
if (resolvedPath.length <= 2)
return path;
if (StringPrototypeCharCodeAt(resolvedPath, 0) === CHAR_BACKWARD_SLASH) {
// Possible UNC root
if (StringPrototypeCharCodeAt(resolvedPath, 1) === CHAR_BACKWARD_SLASH) {
const code = StringPrototypeCharCodeAt(resolvedPath, 2);
if (code !== CHAR_QUESTION_MARK && code !== CHAR_DOT) {
// Matched non-long UNC root, convert the path to a long UNC path
return `\\\\?\\UNC\\${StringPrototypeSlice(resolvedPath, 2)}`;
}
}
} else if (
isWindowsDeviceRoot(StringPrototypeCharCodeAt(resolvedPath, 0)) &&
StringPrototypeCharCodeAt(resolvedPath, 1) === CHAR_COLON &&
StringPrototypeCharCodeAt(resolvedPath, 2) === CHAR_BACKWARD_SLASH
) {
// Matched device root, convert the path to a long UNC path
return `\\\\?\\${resolvedPath}`;
}
return path;
},
/**
* @param {string} path
* @returns {string}
*/
dirname(path) {
validateString(path, 'path');
const len = path.length;
if (len === 0)
return '.';
let rootEnd = -1;
let offset = 0;
const code = StringPrototypeCharCodeAt(path, 0);
if (len === 1) {
// `path` contains just a path separator, exit early to avoid
// unnecessary work or a dot.
return isPathSeparator(code) ? path : '.';
}
// Try to match a root
if (isPathSeparator(code)) {
// Possible UNC root
rootEnd = offset = 1;
if (isPathSeparator(StringPrototypeCharCodeAt(path, 1))) {
// Matched double path separator at beginning
let j = 2;
let last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more path separators
while (j < len &&
isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
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;
}
}
}
}
// Possible device root
} else if (isWindowsDeviceRoot(code) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON) {
rootEnd =
len > 2 && isPathSeparator(StringPrototypeCharCodeAt(path, 2)) ? 3 : 2;
offset = rootEnd;
}
let end = -1;
let matchedSlash = true;
for (let i = len - 1; i >= offset; --i) {
if (isPathSeparator(StringPrototypeCharCodeAt(path, i))) {
if (!matchedSlash) {
end = i;
break;
}
} else {
// We saw the first non-path separator
matchedSlash = false;
}
}
if (end === -1) {
if (rootEnd === -1)
return '.';
end = rootEnd;
}
return StringPrototypeSlice(path, 0, end);
},
/**
* @param {string} path
* @param {string} [ext]
* @returns {string}
*/
basename(path, ext) {
if (ext !== undefined)
validateString(ext, 'ext');
validateString(path, 'path');
let start = 0;
let end = -1;
let matchedSlash = true;
// 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 &&
isWindowsDeviceRoot(StringPrototypeCharCodeAt(path, 0)) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON) {
start = 2;
}
if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {
if (ext === path)
return '';
let extIdx = ext.length - 1;
let firstNonSlashEnd = -1;
for (let i = path.length - 1; i >= start; --i) {
const code = StringPrototypeCharCodeAt(path, i);
if (isPathSeparator(code)) {
// 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 === StringPrototypeCharCodeAt(ext, 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 StringPrototypeSlice(path, start, end);
}
for (let i = path.length - 1; i >= start; --i) {
if (isPathSeparator(StringPrototypeCharCodeAt(path, i))) {
// 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 StringPrototypeSlice(path, start, end);
},
/**
* @param {string} path
* @returns {string}
*/
extname(path) {
validateString(path, 'path');
let start = 0;
let startDot = -1;
let startPart = 0;
let end = -1;
let matchedSlash = true;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let 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 &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON &&
isWindowsDeviceRoot(StringPrototypeCharCodeAt(path, 0))) {
start = startPart = 2;
}
for (let i = path.length - 1; i >= start; --i) {
const code = StringPrototypeCharCodeAt(path, i);
if (isPathSeparator(code)) {
// 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 === CHAR_DOT) {
// 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 StringPrototypeSlice(path, startDot, end);
},
format: FunctionPrototypeBind(_format, null, '\\'),
/**
* @param {string} path
* @returns {{
* dir: string;
* root: string;
* base: string;
* name: string;
* ext: string;
* }}
*/
parse(path) {
validateString(path, 'path');
const ret = { root: '', dir: '', base: '', ext: '', name: '' };
if (path.length === 0)
return ret;
const len = path.length;
let rootEnd = 0;
let code = StringPrototypeCharCodeAt(path, 0);
if (len === 1) {
if (isPathSeparator(code)) {
// `path` contains just a path separator, exit early to avoid
// unnecessary work
ret.root = ret.dir = path;
return ret;
}
ret.base = ret.name = path;
return ret;
}
// Try to match a root
if (isPathSeparator(code)) {
// Possible UNC root
rootEnd = 1;
if (isPathSeparator(StringPrototypeCharCodeAt(path, 1))) {
// Matched double path separator at beginning
let j = 2;
let last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more path separators
while (j < len &&
isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
if (j < len && j !== last) {
// Matched!
last = j;
// Match 1 or more non-path separators
while (j < len &&
!isPathSeparator(StringPrototypeCharCodeAt(path, j))) {
j++;
}
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 (isWindowsDeviceRoot(code) &&
StringPrototypeCharCodeAt(path, 1) === CHAR_COLON) {
// Possible device root
if (len <= 2) {
// `path` contains just a drive root, exit early to avoid
// unnecessary work
ret.root = ret.dir = path;
return ret;
}
rootEnd = 2;
if (isPathSeparator(StringPrototypeCharCodeAt(path, 2))) {
if (len === 3) {
// `path` contains just a drive root, exit early to avoid
// unnecessary work
ret.root = ret.dir = path;
return ret;
}
rootEnd = 3;
}
}
if (rootEnd > 0)
ret.root = StringPrototypeSlice(path, 0, rootEnd);
let startDot = -1;
let startPart = rootEnd;
let end = -1;
let matchedSlash = true;
let i = path.length - 1;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let preDotState = 0;
// Get non-dir info
for (; i >= rootEnd; --i) {
code = StringPrototypeCharCodeAt(path, i);
if (isPathSeparator(code)) {
// 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 === CHAR_DOT) {
// 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 (end !== -1) {
if (startDot === -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)) {
ret.base = ret.name = StringPrototypeSlice(path, startPart, end);
} else {
ret.name = StringPrototypeSlice(path, startPart, startDot);
ret.base = StringPrototypeSlice(path, startPart, end);
ret.ext = StringPrototypeSlice(path, 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 = StringPrototypeSlice(path, 0, startPart - 1);
else
ret.dir = ret.root;
return ret;
},
sep: '\\',
delimiter: ';',
win32: null,
posix: null
};
const posixCwd = (() => {
if (platformIsWin32) {
// Converts Windows' backslash path separators to POSIX forward slashes
// and truncates any drive indicator
const regexp = /\\/g;
return () => {
const cwd = StringPrototypeReplace(process.cwd(), regexp, '/');
return StringPrototypeSlice(cwd, StringPrototypeIndexOf(cwd, '/'));
};
}
// We're already on POSIX, no need for any transformations
return () => process.cwd();
})();
const posix = {
/**
* path.resolve([from ...], to)
* @param {...string} args
* @returns {string}
*/
resolve(...args) {
let resolvedPath = '';
let resolvedAbsolute = false;
for (let i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) {
const path = i >= 0 ? args[i] : posixCwd();
validateString(path, 'path');
// Skip empty entries
if (path.length === 0) {
continue;
}
resolvedPath = `${path}/${resolvedPath}`;
resolvedAbsolute =
StringPrototypeCharCodeAt(path, 0) === CHAR_FORWARD_SLASH;
}
// 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 = normalizeString(resolvedPath, !resolvedAbsolute, '/',
isPosixPathSeparator);
if (resolvedAbsolute) {
return `/${resolvedPath}`;
}
return resolvedPath.length > 0 ? resolvedPath : '.';
},
/**
* @param {string} path
* @returns {string}
*/
normalize(path) {
validateString(path, 'path');
if (path.length === 0)
return '.';
const isAbsolute =
StringPrototypeCharCodeAt(path, 0) === CHAR_FORWARD_SLASH;
const trailingSeparator =
StringPrototypeCharCodeAt(path, path.length - 1) === CHAR_FORWARD_SLASH;
// Normalize the path
path = normalizeString(path, !isAbsolute, '/', isPosixPathSeparator);
if (path.length === 0) {
if (isAbsolute)
return '/';
return trailingSeparator ? './' : '.';
}
if (trailingSeparator)
path += '/';
return isAbsolute ? `/${path}` : path;
},
/**
* @param {string} path
* @returns {boolean}
*/
isAbsolute(path) {
validateString(path, 'path');
return path.length > 0 &&
StringPrototypeCharCodeAt(path, 0) === CHAR_FORWARD_SLASH;
},
/**
* @param {...string} args
* @returns {string}
*/
join(...args) {
if (args.length === 0)
return '.';
let joined;
for (let i = 0; i < args.length; ++i) {
const arg = args[i];
validateString(arg, 'path');
if (arg.length > 0) {
if (joined === undefined)
joined = arg;
else
joined += `/${arg}`;
}
}
if (joined === undefined)
return '.';
return posix.normalize(joined);
},
/**
* @param {string} from
* @param {string} to
* @returns {string}
*/
relative(from, to) {
validateString(from, 'from');
validateString(to, 'to');
if (from === to)
return '';
// Trim leading forward slashes.
from = posix.resolve(from);
to = posix.resolve(to);
if (from === to)
return '';
const fromStart = 1;
const fromEnd = from.length;
const fromLen = fromEnd - fromStart;
const toStart = 1;
const toLen = to.length - toStart;
// Compare paths to find the longest common path from root
const length = (fromLen < toLen ? fromLen : toLen);
let lastCommonSep = -1;
let i = 0;
for (; i < length; i++) {
const fromCode = StringPrototypeCharCodeAt(from, fromStart + i);
if (fromCode !== StringPrototypeCharCodeAt(to, toStart + i))
break;
else if (fromCode === CHAR_FORWARD_SLASH)
lastCommonSep = i;
}
if (i === length) {
if (toLen > length) {
if (StringPrototypeCharCodeAt(to, toStart + i) === CHAR_FORWARD_SLASH) {
// We get here if `from` is the exact base path for `to`.
// For example: from='/foo/bar'; to='/foo/bar/baz'
return StringPrototypeSlice(to, toStart + i + 1);
}
if (i === 0) {
// We get here if `from` is the root
// For example: from='/'; to='/foo'
return StringPrototypeSlice(to, toStart + i);
}
} else if (fromLen > length) {
if (StringPrototypeCharCodeAt(from, fromStart + i) ===
CHAR_FORWARD_SLASH) {
// 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/bar'; to='/'
lastCommonSep = 0;
}
}
}
let 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 ||
StringPrototypeCharCodeAt(from, i) === CHAR_FORWARD_SLASH) {
out += out.length === 0 ? '..' : '/..';
}
}
// Lastly, append the rest of the destination (`to`) path that comes after
// the common path parts.
return `${out}${StringPrototypeSlice(to, toStart + lastCommonSep)}`;
},
/**
* @param {string} path
* @returns {string}
*/
toNamespacedPath(path) {
// Non-op on posix systems
return path;
},
/**
* @param {string} path
* @returns {string}
*/
dirname(path) {
validateString(path, 'path');
if (path.length === 0)
return '.';
const hasRoot = StringPrototypeCharCodeAt(path, 0) === CHAR_FORWARD_SLASH;
let end = -1;
let matchedSlash = true;
for (let i = path.length - 1; i >= 1; --i) {
if (StringPrototypeCharCodeAt(path, i) === CHAR_FORWARD_SLASH) {
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 StringPrototypeSlice(path, 0, end);
},
/**
* @param {string} path
* @param {string} [ext]
* @returns {string}
*/
basename(path, ext) {
if (ext !== undefined)
validateString(ext, 'ext');
validateString(path, 'path');
let start = 0;
let end = -1;
let matchedSlash = true;
if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {
if (ext === path)
return '';
let extIdx = ext.length - 1;
let firstNonSlashEnd = -1;
for (let i = path.length - 1; i >= 0; --i) {
const code = StringPrototypeCharCodeAt(path, i);
if (code === CHAR_FORWARD_SLASH) {
// 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 === StringPrototypeCharCodeAt(ext, 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 StringPrototypeSlice(path, start, end);
}
for (let i = path.length - 1; i >= 0; --i) {
if (StringPrototypeCharCodeAt(path, i) === CHAR_FORWARD_SLASH) {
// 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 StringPrototypeSlice(path, start, end);
},
/**
* @param {string} path
* @returns {string}
*/
extname(path) {
validateString(path, 'path');
let startDot = -1;
let startPart = 0;
let end = -1;
let matchedSlash = true;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let preDotState = 0;
for (let i = path.length - 1; i >= 0; --i) {
const code = StringPrototypeCharCodeAt(path, i);
if (code === CHAR_FORWARD_SLASH) {
// 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 === CHAR_DOT) {
// 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 StringPrototypeSlice(path, startDot, end);
},
format: FunctionPrototypeBind(_format, null, '/'),
/**
* @param {string} path
* @returns {{
* dir: string;
* root: string;
* base: string;
* name: string;
* ext: string;
* }}
*/
parse(path) {
validateString(path, 'path');
const ret = { root: '', dir: '', base: '', ext: '', name: '' };
if (path.length === 0)
return ret;
const isAbsolute =
StringPrototypeCharCodeAt(path, 0) === CHAR_FORWARD_SLASH;
let start;
if (isAbsolute) {
ret.root = '/';
start = 1;
} else {
start = 0;
}
let startDot = -1;
let startPart = 0;
let end = -1;
let matchedSlash = true;
let i = path.length - 1;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let preDotState = 0;
// Get non-dir info
for (; i >= start; --i) {
const code = StringPrototypeCharCodeAt(path, i);
if (code === CHAR_FORWARD_SLASH) {
// 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 === CHAR_DOT) {
// 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 (end !== -1) {
const start = startPart === 0 && isAbsolute ? 1 : startPart;
if (startDot === -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)) {
ret.base = ret.name = StringPrototypeSlice(path, start, end);
} else {
ret.name = StringPrototypeSlice(path, start, startDot);
ret.base = StringPrototypeSlice(path, start, end);
ret.ext = StringPrototypeSlice(path, startDot, end);
}
}
if (startPart > 0)
ret.dir = StringPrototypeSlice(path, 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;
// Legacy internal API, docs-only deprecated: DEP0080
win32._makeLong = win32.toNamespacedPath;
posix._makeLong = posix.toNamespacedPath;
module.exports = platformIsWin32 ? win32 : posix;
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