/
htmltodom.js
130 lines (103 loc) · 3.71 KB
/
htmltodom.js
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var HtmlToDom = function(parser){
if(parser && parser.write) {
// sax parser
this.appendHtmlToElement = function(html, element){
var currentElement = element, currentLevel = 0;
parser.onerror = function (e) {};
parser.ontext = function (t) {
var ownerDocument = currentElement.ownerDocument || currentElement;
var newText = ownerDocument.createTextNode(t);
currentElement.appendChild(newText);
};
parser.onopentag = function (node) {
var nodeName = node.name.toLowerCase(),
document = currentElement.ownerDocument || currentElement,
newElement = document.createElement(nodeName),
i = 0,
length = (node.attributes && node.attributes.length) ?
node.attributes.length :
0;
for (i in node.attributes)
{
if (node.attributes.hasOwnProperty(i)) {
newElement.setAttribute(i, node.attributes[i]);
}
}
currentElement.appendChild(newElement);
currentElement = newElement;
};
parser.onclosetag = function(node) {
currentElement = currentElement.parentNode;
}
parser.write(html).close();
return element;
}
} else if(parser && (parser.ParseHtml || parser.DefaultHandler)) {
// Forgiving HTML parser
if(parser.ParseHtml){
// davglass/node-htmlparser
} else if(parser.DefaultHandler){
// tautologistics/node-htmlparser
parser.ParseHtml = function(rawHtml){
var handler = new this.DefaultHandler();
var parser = new this.Parser(handler);
parser.parseComplete(rawHtml);
return handler.dom;
}
}
this.appendHtmlToElement = function(html, element){
if (typeof html !== 'string') {
html +='';
}
// jos3000: not sure why this is here to clean up whitespace...
html = html.replace(/\n/gm, '');
html = html.replace(/ /gm, '');
var parsed = parser.ParseHtml(html);
for (var i = 0; i < parsed.length; i++) {
setChild.call(element, parsed[i]);
}
return element;
}
} else {
this.appendHtmlToElement = function(){
var sys = require('sys');
sys.puts('');
sys.puts('###########################################################');
sys.puts('# WARNING: node-htmlparser could not be found.');
sys.puts('# Element.innerHTML setter support has been disabled');
sys.puts('# Element.innerHTML getter support will still function');
sys.puts('# Download: http://github.com/davglass/node-htmlparser');
sys.puts('###########################################################');
sys.puts('');
}
}
}
// utility function for forgiving parser
var setChild = function(node) {
var newNode, currentDocument = this.ownerDocument || this;
if (node.type == 'tag' || node.type == 'script' || node.type == 'style') {
newNode = currentDocument.createElement(node.name);
}
if (node.type == 'text') {
newNode = currentDocument.createTextNode(node.data);
}
if (node.type == 'comment') {
newNode = currentDocument.createComment(node.data);
}
if (node.attribs && newNode) {
for (var c in node.attribs) {
newNode.setAttribute(c, node.attribs[c]);
}
}
if (node.children && newNode) {
for (var c = 0; c < node.children.length; c++) {
setChild.call(newNode, node.children[c]);
}
}
if (newNode) {
return this.appendChild(newNode);
} else {
return null;
}
};
exports.HtmlToDom = HtmlToDom;