node-query/node_modules/jsdoc/rhino/path.js

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2014-10-20 16:56:45 -04:00
var isWindows = java.lang.System.getProperty("os.name").toLowerCase().contains("windows");
var fileSeparator = exports.sep = String( java.lang.System.getProperty("file.separator") );
function noOp() {}
// exported for the benefit of our `fs` shim
var asyncify = exports._asyncify = function(func) {
return function() {
var args = Array.prototype.slice.call(arguments);
var callback = args.pop();
var data;
callback = typeof callback === 'function' ? callback : noOp;
try {
data = func.apply(this, args);
process.nextTick(function() {
callback(null, data);
});
}
catch (e) {
process.nextTick(function() {
callback(e);
});
}
};
};
/**
* Returns everything on a path except for the last item
* e.g. if the path was 'path/to/something', the return value would be 'path/to'
*/
exports.dirname = function(_path) {
var f = new java.io.File(_path);
return String(f.getParent());
};
/**
* Returns the last item on a path
*/
exports.basename = function(_path, ext) {
var f = new java.io.File(_path);
var p = f.getParentFile();
var base = String(f.getName());
if (p != null) {
var idx = ext ? base.indexOf(ext) : -1;
if (idx !== -1) {
base = base.substring(0, base.length - ext.length);
}
}
return base;
};
exports.existsSync = function(_path) {
var f = new java.io.File(_path);
if (f.isDirectory()){
return true;
}
if (!f.exists()){
return false;
}
if (!f.canRead()){
return false;
}
return true;
};
exports.exists = asyncify(exports.existsSync);
//Code below taken from node
//resolves . and .. elements in a path array with directory names there
//must be no slashes, empty elements, or device names (c:\) in the array
//(so also no leading and trailing slashes - it does not distinguish
//relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for ( var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last == '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up--; up) {
parts.unshift('..');
}
}
return parts;
}
if (isWindows) {
// Regex to split a windows path into three parts: [*, device, slash,
// tail] windows-only
var splitDeviceRe =
/^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?([\\\/])?([\s\S]*?)$/;
// path.resolve([from ...], to)
// windows version
exports.resolve = function() {
var resolvedDevice = '',
resolvedTail = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1; i--) {
var path;
if (i >= 0) {
path = arguments[i];
} else if (!resolvedDevice) {
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. We're sure the device is not
// an unc path at this points, because unc paths are always absolute.
path = process.env['=' + resolvedDevice];
// Verify that a drive-local cwd was found and that it actually points
// to our drive. If not, default to the drive's root.
if (!path || path.substr(0, 3).toLowerCase() !==
resolvedDevice.toLowerCase() + '\\') {
path = resolvedDevice + '\\';
}
}
// Skip empty and invalid entries
if (typeof path !== 'string' || !path) {
continue;
}
var result = splitDeviceRe.exec(path),
device = result[1] || '',
isUnc = device && device.charAt(1) !== ':',
isAbsolute = !!result[2] || isUnc, // UNC paths are always absolute
tail = result[3];
if (device &&
resolvedDevice &&
device.toLowerCase() !== resolvedDevice.toLowerCase()) {
// This path points to another device so it is not applicable
continue;
}
if (!resolvedDevice) {
resolvedDevice = device;
}
if (!resolvedAbsolute) {
resolvedTail = tail + '\\' + resolvedTail;
resolvedAbsolute = isAbsolute;
}
if (resolvedDevice && resolvedAbsolute) {
break;
}
}
// Replace slashes (in UNC share name) by backslashes
resolvedDevice = resolvedDevice.replace(/\//g, '\\');
// 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
function f(p) {
return !!p;
}
resolvedTail = normalizeArray(resolvedTail.split(/[\\\/]+/).filter(f),
!resolvedAbsolute).join('\\');
return (resolvedDevice + (resolvedAbsolute ? '\\' : '') + resolvedTail) ||
'.';
};
// windows version
exports.normalize = function(_path) {
var result = splitDeviceRe.exec(_path),
device = result[1] || '',
isUnc = device && device.charAt(1) !== ':',
isAbsolute = !!result[2] || isUnc, // UNC paths are always absolute
tail = result[3],
trailingSlash = /[\\\/]$/.test(tail);
// Normalize the tail path
tail = normalizeArray(tail.split(/[\\\/]+/).filter(function(p) {
return !!p;
}), !isAbsolute).join('\\');
if (!tail && !isAbsolute) {
tail = '.';
}
if (tail && trailingSlash) {
tail += '\\';
}
return device + (isAbsolute ? '\\' : '') + tail;
};
//windows version
exports.join = function() {
function f(p) {
return p && typeof p === 'string';
}
var _paths = Array.prototype.slice.call(arguments, 0).filter(f);
var joined = _paths.join('\\');
// Make sure that the joined path doesn't start with two slashes
// - it will be mistaken for an unc path by normalize() -
// unless the _paths[0] also starts with two slashes
if (/^[\\\/]{2}/.test(joined) && !/^[\\\/]{2}/.test(_paths[0])) {
joined = joined.slice(1);
}
return exports.normalize(joined);
};
// path.relative(from, to)
// 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'
// windows version
exports.relative = function(from, to) {
from = exports.resolve(from);
to = exports.resolve(to);
// windows is not case sensitive
var lowerFrom = from.toLowerCase();
var lowerTo = to.toLowerCase();
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') {
break;
}
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') {
break;
}
}
if (start > end) {
return [];
}
return arr.slice(start, end - start + 1);
}
var toParts = trim(to.split('\\'));
var lowerFromParts = trim(lowerFrom.split('\\'));
var lowerToParts = trim(lowerTo.split('\\'));
var length = Math.min(lowerFromParts.length, lowerToParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (lowerFromParts[i] !== lowerToParts[i]) {
samePartsLength = i;
break;
}
}
if (samePartsLength === 0) {
return to;
}
var outputParts = [];
for (i = samePartsLength; i < lowerFromParts.length; i++) {
outputParts.push('..');
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join('\\');
};
} else {
// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[i] : process.cwd();
// Skip empty and invalid entries
if (typeof path !== 'string' || !path) {
continue;
}
resolvedPath = path + '/' + resolvedPath;
resolvedAbsolute = path.charAt(0) === '/';
}
// 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 = normalizeArray(resolvedPath.split('/').filter(function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};
// path.normalize(_path)
// posix version
exports.normalize = function(_path) {
var isAbsolute = _path.charAt(0) === '/',
trailingSlash = _path.slice(-1) === '/';
// Normalize the path
_path = normalizeArray(_path.split('/').filter(function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!_path && !isAbsolute) {
_path = '.';
}
if (_path && trailingSlash) {
_path += '/';
}
return (isAbsolute ? '/' : '') + _path;
};
// posix version
exports.join = function() {
var _paths = Array.prototype.slice.call(arguments, 0);
return exports.normalize(_paths.filter(function(p, index) {
return p && typeof p === 'string';
}).join('/'));
};
// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
from = exports.resolve(from).substr(1);
to = exports.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') {
break;
}
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') {
break;
}
}
if (start > end) {
return [];
}
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split('/'));
var toParts = trim(to.split('/'));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (i = samePartsLength; i < fromParts.length; i++) {
outputParts.push('..');
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join('/');
};
}