162 lines
3.6 KiB
JavaScript
162 lines
3.6 KiB
JavaScript
|
/*
|
||
|
Copyright 2012-2015, Yahoo Inc.
|
||
|
Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
|
||
|
*/
|
||
|
"use strict";
|
||
|
|
||
|
var path = require('path'),
|
||
|
parsePath = require('path-parse'),
|
||
|
SEP = path.sep || /* istanbul ignore next */ '/',
|
||
|
origParser = parsePath,
|
||
|
origSep = SEP;
|
||
|
|
||
|
function makeRelativeNormalizedPath(str, sep) {
|
||
|
var parsed = parsePath(str),
|
||
|
root = parsed.root,
|
||
|
dir,
|
||
|
file = parsed.base,
|
||
|
quoted,
|
||
|
pos;
|
||
|
|
||
|
// handle a weird windows case separately
|
||
|
if (sep === '\\') {
|
||
|
pos = root.indexOf(':\\');
|
||
|
if (pos >= 0) {
|
||
|
root = root.substring(0, pos + 2);
|
||
|
}
|
||
|
}
|
||
|
dir = parsed.dir.substring(root.length);
|
||
|
|
||
|
if (str === '') {
|
||
|
return [];
|
||
|
}
|
||
|
|
||
|
if (sep !== '/') {
|
||
|
quoted = new RegExp(sep.replace(/\W/g, '\\$&'), 'g');
|
||
|
dir = dir.replace(quoted, '/');
|
||
|
file = file.replace(quoted, '/'); // excessively paranoid?
|
||
|
}
|
||
|
|
||
|
if (dir !== '') {
|
||
|
dir = dir + '/' + file;
|
||
|
} else {
|
||
|
dir = file;
|
||
|
}
|
||
|
if (dir.substring(0,1) === '/') {
|
||
|
dir = dir.substring(1);
|
||
|
}
|
||
|
dir = dir.split(/\/+/);
|
||
|
return dir;
|
||
|
}
|
||
|
|
||
|
function Path(strOrArray) {
|
||
|
if (Array.isArray(strOrArray)) {
|
||
|
this.v = strOrArray;
|
||
|
} else if (typeof strOrArray === "string") {
|
||
|
this.v = makeRelativeNormalizedPath(strOrArray, SEP);
|
||
|
} else {
|
||
|
throw new Error('Invalid Path argument must be string or array:' + strOrArray);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Path.prototype.toString = function () {
|
||
|
return this.v.join('/');
|
||
|
};
|
||
|
|
||
|
Path.prototype.hasParent = function () {
|
||
|
return this.v.length > 0;
|
||
|
};
|
||
|
|
||
|
Path.prototype.parent = function () {
|
||
|
if (!this.hasParent()) {
|
||
|
throw new Error('Unable to get parent for 0 elem path');
|
||
|
}
|
||
|
var p = this.v.slice();
|
||
|
p.pop();
|
||
|
return new Path(p);
|
||
|
};
|
||
|
|
||
|
Path.prototype.elements = function () {
|
||
|
return this.v.slice();
|
||
|
};
|
||
|
|
||
|
Path.prototype.contains = function (other) {
|
||
|
var i;
|
||
|
if (other.length > this.length) {
|
||
|
return false;
|
||
|
}
|
||
|
for (i = 0; i < other.length; i += 1) {
|
||
|
if (this.v[i] !== other.v[i]) {
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
return true;
|
||
|
};
|
||
|
|
||
|
Path.prototype.ancestorOf = function (other) {
|
||
|
return other.contains(this) && other.length !== this.length;
|
||
|
};
|
||
|
|
||
|
Path.prototype.descendantOf = function (other) {
|
||
|
return this.contains(other) && other.length !== this.length;
|
||
|
};
|
||
|
|
||
|
Path.prototype.commonPrefixPath = function (other) {
|
||
|
var len = this.length > other.length ? other.length : this.length,
|
||
|
i,
|
||
|
ret = [];
|
||
|
|
||
|
for (i = 0; i < len; i +=1 ) {
|
||
|
if (this.v[i] === other.v[i]) {
|
||
|
ret.push(this.v[i]);
|
||
|
} else {
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
return new Path(ret);
|
||
|
};
|
||
|
|
||
|
['push', 'pop', 'shift', 'unshift', 'splice'].forEach(function (f) {
|
||
|
Path.prototype[f] = function () {
|
||
|
var args = Array.prototype.slice.call(arguments),
|
||
|
v = this.v;
|
||
|
return v[f].apply(v, args);
|
||
|
};
|
||
|
});
|
||
|
|
||
|
Path.compare = function (a, b) {
|
||
|
var al = a.length,
|
||
|
bl = b.length,
|
||
|
astr,
|
||
|
bstr;
|
||
|
if (al < bl) {
|
||
|
return -1;
|
||
|
}
|
||
|
if (al > bl) {
|
||
|
return 1;
|
||
|
}
|
||
|
astr = a.toString();
|
||
|
bstr = b.toString();
|
||
|
return astr < bstr ? -1 : astr > bstr ? 1 : 0;
|
||
|
};
|
||
|
|
||
|
Object.defineProperty(Path.prototype, 'length', {
|
||
|
enumerable: true,
|
||
|
get: function () {
|
||
|
return this.v.length;
|
||
|
}
|
||
|
});
|
||
|
|
||
|
module.exports = Path;
|
||
|
Path.tester = {
|
||
|
setParserAndSep: function (p, sep) {
|
||
|
parsePath = p;
|
||
|
SEP = sep;
|
||
|
},
|
||
|
reset: function () {
|
||
|
parsePath = origParser;
|
||
|
SEP = origSep;
|
||
|
}
|
||
|
};
|
||
|
|