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refactor path module to lib/path.js

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This commit is contained in:
isaacs 2010-04-20 18:17:54 -07:00 committed by Ryan Dahl
parent 7ff53f4c6a
commit e0061a511d
3 changed files with 72 additions and 66 deletions
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64
lib/path.js Normal file
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@ -0,0 +1,64 @@
exports.join = function () {
return exports.normalize(Array.prototype.join.call(arguments, "/"));
};
exports.normalizeArray = function (parts, keepBlanks) {
var directories = [], prev;
for (var i = 0, l = parts.length - 1; i <= l; i++) {
var directory = parts[i];
// if it's blank, but it's not the first thing, and not the last thing, skip it.
if (directory === "" && i !== 0 && i !== l && !keepBlanks) continue;
// if it's a dot, and there was some previous dir already, then skip it.
if (directory === "." && prev !== undefined) continue;
if (
directory === ".."
&& directories.length
&& prev !== ".."
&& prev !== "."
&& prev !== undefined
&& (prev !== "" || keepBlanks)
) {
directories.pop();
prev = directories.slice(-1)[0]
} else {
if (prev === ".") directories.pop();
directories.push(directory);
prev = directory;
}
}
return directories;
};
exports.normalize = function (path, keepBlanks) {
return exports.normalizeArray(path.split("/"), keepBlanks).join("/");
};
exports.dirname = function (path) {
return path && path.substr(0, path.lastIndexOf("/")) || ".";
};
exports.filename = function () {
throw new Error("path.filename is deprecated. Please use path.basename instead.");
};
exports.basename = function (path, ext) {
var f = path.substr(path.lastIndexOf("/") + 1);
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
};
exports.extname = function (path) {
var index = path.lastIndexOf('.');
return index < 0 ? '' : path.substring(index);
};
exports.exists = function (path, callback) {
process.binding('fs').stat(path, function (err, stats) {
if (callback) callback(err ? false : true);
});
};

1
src/node.cc
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@ -1308,6 +1308,7 @@ static Handle<Value> Binding(const Arguments& args) {
exports->Set(String::New("url"), String::New(native_url)); exports->Set(String::New("url"), String::New(native_url));
exports->Set(String::New("utils"), String::New(native_utils)); exports->Set(String::New("utils"), String::New(native_utils));
exports->Set(String::New("events"), String::New(native_events)); exports->Set(String::New("events"), String::New(native_events));
exports->Set(String::New("path"), String::New(native_path));
binding_cache->Set(module, exports); binding_cache->Set(module, exports);
} }

73
src/node.js
View File

@ -196,72 +196,13 @@ function debug (x) {
} }
} }
var pathModule = createInternalModule
var pathModule = createInternalModule("path", function (exports) { ( 'path'
exports.join = function () { , process.compile
return exports.normalize(Array.prototype.join.call(arguments, "/")); ( "(function (exports) {" + natives.path + "})"
}; , "path"
)
exports.normalizeArray = function (parts, keepBlanks) { );
var directories = [], prev;
for (var i = 0, l = parts.length - 1; i <= l; i++) {
var directory = parts[i];
// if it's blank, but it's not the first thing, and not the last thing, skip it.
if (directory === "" && i !== 0 && i !== l && !keepBlanks) continue;
// if it's a dot, and there was some previous dir already, then skip it.
if (directory === "." && prev !== undefined) continue;
if (
directory === ".."
&& directories.length
&& prev !== ".."
&& prev !== "."
&& prev !== undefined
&& (prev !== "" || keepBlanks)
) {
directories.pop();
prev = directories.slice(-1)[0]
} else {
if (prev === ".") directories.pop();
directories.push(directory);
prev = directory;
}
}
return directories;
};
exports.normalize = function (path, keepBlanks) {
return exports.normalizeArray(path.split("/"), keepBlanks).join("/");
};
exports.dirname = function (path) {
return path.substr(0, path.lastIndexOf("/")) || ".";
};
exports.filename = function () {
throw new Error("path.filename is deprecated. Please use path.basename instead.");
};
exports.basename = function (path, ext) {
var f = path.substr(path.lastIndexOf("/") + 1);
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
};
exports.extname = function (path) {
var index = path.lastIndexOf('.');
return index < 0 ? '' : path.substring(index);
};
exports.exists = function (path, callback) {
requireNative('fs').stat(path, function (err, stats) {
if (callback) callback(err ? false : true);
});
};
});
var path = pathModule.exports; var path = pathModule.exports;