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fix style in path.js

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This commit is contained in:
Ryan Dahl 2010-11-21 14:13:54 -08:00
parent 5890272538
commit 6063ea62df
1 changed files with 18 additions and 1 deletions
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19
lib/path.js
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@ -1,8 +1,8 @@
function validPathPart (p, keepBlanks) {
return typeof p === "string" && (p || keepBlanks);
}
exports.join = function () {
var args = Array.prototype.slice.call(arguments);
// edge case flag to switch into url-resolve-mode
@ -14,32 +14,42 @@ exports.join = function () {
var joined = exports.normalizeArray(args, keepBlanks).join("/");
return joined;
};
exports.split = function (path, keepBlanks) {
// split based on /, but only if that / is not at the start or end.
return exports.normalizeArray(path.split(/^|\/(?!$)/), keepBlanks);
};
function cleanArray (parts, keepBlanks) {
var i = 0;
var l = parts.length - 1;
var stripped = false;
// strip leading empty args
while (i < l && !validPathPart(parts[i], keepBlanks)) {
stripped = true;
i ++;
}
// strip tailing empty args
while (l >= i && !validPathPart(parts[l], keepBlanks)) {
stripped = true;
l --;
}
if (stripped) {
// if l chopped all the way back to i, then this is empty
parts = Array.prototype.slice.call(parts, i, l + 1);
}
return parts.filter(function (p) { return validPathPart(p, keepBlanks) })
.join('/')
.split(/^|\/(?!$)/);
}
exports.normalizeArray = function (original, keepBlanks) {
var parts = cleanArray(original, keepBlanks);
if (!parts.length || (parts.length === 1 && !parts[0])) return ["."];
@ -48,6 +58,7 @@ exports.normalizeArray = function (original, keepBlanks) {
// leading/trailing invalids have been stripped off.
// if it comes in starting with a slash, or ending with a slash,
var leadingSlash = (parts[0].charAt(0) === "/");
if (leadingSlash) parts[0] = parts[0].substr(1);
var last = parts.slice(-1)[0];
var tailingSlash = (last.substr(-1) === "/");
@ -100,10 +111,12 @@ exports.normalizeArray = function (original, keepBlanks) {
return directories;
};
exports.normalize = function (path, keepBlanks) {
return exports.join(path, keepBlanks || false);
};
exports.dirname = function (path) {
if (path.length > 1 && '/' === path[path.length-1]) {
path = path.replace(/\/+$/, '');
@ -119,6 +132,7 @@ exports.dirname = function (path) {
}
};
exports.basename = function (path, ext) {
var f = path.substr(path.lastIndexOf("/") + 1);
if (ext && f.substr(-1 * ext.length) === ext) {
@ -127,6 +141,7 @@ exports.basename = function (path, ext) {
return f;
};
exports.extname = function (path) {
var dot = path.lastIndexOf('.'),
slash = path.lastIndexOf('/');
@ -136,12 +151,14 @@ exports.extname = function (path) {
return dot <= slash + 1 ? '' : path.substring(dot);
};
exports.exists = function (path, callback) {
process.binding('fs').stat(path, function (err, stats) {
if (callback) callback(err ? false : true);
});
};
exports.existsSync = function (path) {
try {
process.binding('fs').stat(path);