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$xml_helper.js
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81 lines (69 loc) · 2.63 KB
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/**
* [main module]
* @return {[object]} [toJSONObject, fromJSONObject, toString, fromString]
*/
var $xml = (function() {
function toJSON(pXML) {
var vObj = {}, vAttr, i;
// object type
if (pXML.nodeType == 1) { // element
if (pXML.attributes && (pXML.attributes.length > 0)) {
vObj["#attributes"] = {};
for (i = 0; i < pXML.attributes.length; i++) {
vAttr = pXML.attributes.item(i);
vObj["#attributes"][vAttr.nodeName] = vAttr.nodeValue;
}
}
} else if (pXML.nodeType == 3) // text
vObj = pXML.nodeValue;
// do children
if (pXML.hasChildNodes()) {
for (i = 0; i < pXML.childNodes.length; i++) {
var vItem = pXML.childNodes.item(i),
vNodeName = vItem.nodeName;
if (typeof(vObj[vNodeName]) == "undefined") vObj[vNodeName] = toJSON(vItem);
else {
if (typeof(vObj[vNodeName].length) == "undefined") {
var vOld = vObj[vNodeName];
vObj[vNodeName] = [];
vObj[vNodeName].push(vOld);
}
vObj[vNodeName].push(toJSON(vItem));
}
}
}
return vObj;
}
function toXML(pJSON, pTagName) {
var vAttrs = {}, vAttrList = [],
vInnerXML = '';
if (vAttrs = pJSON['#attributes'])
for (var vAttr in vAttrs)
vAttrList.push(vAttr + '="' + vAttrs[vAttr] + '"');
if (!(vInnerXML = pJSON['#text'])) {
var vInnerList = [];
for (var vPrp in pJSON)
if (vPrp.charAt(0) != '#')
vInnerList.push(toXML(pJSON[vPrp], vPrp));
vInnerXML = vInnerList.join('\r\n');
}
if (pTagName)
return '<' + pTagName + ' ' + vAttrList.join(' ') + '>' + vInnerXML + '</' + pTagName + '>';
else
return vInnerXML;
}
return {
toJSONObject: function(pXML) {
return (pXML ? toJSON(pXML) : pXML);
},
fromJSONObject: function(pJSON) {
return this.fromString(toXML(pJSON));
},
toString: function(pObj) {
return (pObj ? (new XMLSerializer()).serializeToString(pObj.nodeType === undefined ? this.fromJSONObject(pObj) : pObj) : '');
},
fromString: function(pStr) {
return (pStr.charAt(0) == '<' ? (new DOMParser()).parseFromString(pStr.trim(), 'text/xml') : toXML(window.JSON.parse(pStr)));
}
};
})();