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core.js
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core.js
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/*
* Utilities: A classic collection of JavaScript utilities
* Copyright 2112 Matthew Eernisse (mde@fleegix.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
var core = new (function () {
var _mix = function (targ, src, merge, includeProto) {
for (var p in src) {
// Don't copy stuff from the prototype
if (src.hasOwnProperty(p) || includeProto) {
if (merge &&
// Assumes the source property is an Object you can
// actually recurse down into
(typeof src[p] == 'object') &&
(src[p] !== null) &&
!(src[p] instanceof Array)) {
// Create the source property if it doesn't exist
// TODO: What if it's something weird like a String or Number?
if (typeof targ[p] == 'undefined') {
targ[p] = {};
}
_mix(targ[p], src[p], merge, includeProto); // Recurse
}
// If it's not a merge-copy, just set and forget
else {
targ[p] = src[p];
}
}
}
};
this.objectToString = function (object) {
var objectArray = []
, val;
for (var key in object) {
val = object[key];
if (typeof val === 'object') {
objectArray.push(this.objectToString(val));
} else {
objectArray.push(key + '=' + val);
}
}
return objectArray.join(', ');
};
/*
* Mix in the properties on an object to another object
* yam.mixin(target, source, [source,] [source, etc.] [merge-flag]);
* 'merge' recurses, to merge object sub-properties together instead
* of just overwriting with the source object.
*/
this.mixin = function () {
var args = Array.prototype.slice.apply(arguments),
merge = false,
targ, sources;
if (args.length > 2) {
if (typeof args[args.length - 1] == 'boolean') {
merge = args.pop();
}
}
targ = args.shift();
sources = args;
for (var i = 0, ii = sources.length; i < ii; i++) {
_mix(targ, sources[i], merge);
}
return targ;
};
this.enhance = function () {
var args = Array.prototype.slice.apply(arguments),
merge = false,
targ, sources;
if (args.length > 2) {
if (typeof args[args.length - 1] == 'boolean') {
merge = args.pop();
}
}
targ = args.shift();
sources = args;
for (var i = 0, ii = sources.length; i < ii; i++) {
_mix(targ, sources[i], merge, true);
}
return targ;
};
})();
module.exports = core;