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/*
Module Dependencies
*/
var htmlparser = require('htmlparser2'),
parse5 = require('parse5');
/*
Parser
*/
exports = module.exports = function(content, options, isDocument) {
var dom = exports.evaluate(content, options, isDocument),
// Generic root element
root = exports.evaluate('<root></root>', options, false)[0];
root.type = 'root';
root.parent = null;
// Update the dom using the root
exports.update(dom, root);
return root;
};
function parseWithParse5 (content, isDocument) {
var parse = isDocument ? parse5.parse : parse5.parseFragment,
root = parse(content, { treeAdapter: parse5.treeAdapters.htmlparser2 });
return root.children;
}
exports.evaluate = function(content, options, isDocument) {
// options = options || $.fn.options;
var dom;
if (Buffer.isBuffer(content))
content = content.toString();
if (typeof content === 'string') {
var useHtmlParser2 = options.xmlMode || options._useHtmlParser2;
dom = useHtmlParser2 ? htmlparser.parseDOM(content, options) : parseWithParse5(content, isDocument);
} else {
dom = content;
}
return dom;
};
/*
Update the dom structure, for one changed layer
*/
exports.update = function(arr, parent) {
// normalize
if (!Array.isArray(arr)) arr = [arr];
// Update parent
if (parent) {
parent.children = arr;
} else {
parent = null;
}
// Update neighbors
for (var i = 0; i < arr.length; i++) {
var node = arr[i];
// Cleanly remove existing nodes from their previous structures.
var oldParent = node.parent || node.root,
oldSiblings = oldParent && oldParent.children;
if (oldSiblings && oldSiblings !== arr) {
oldSiblings.splice(oldSiblings.indexOf(node), 1);
if (node.prev) {
node.prev.next = node.next;
}
if (node.next) {
node.next.prev = node.prev;
}
}
if (parent) {
node.prev = arr[i - 1] || null;
node.next = arr[i + 1] || null;
} else {
node.prev = node.next = null;
}
if (parent && parent.type === 'root') {
node.root = parent;
node.parent = null;
} else {
node.root = null;
node.parent = parent;
}
}
return parent;
};
// module.exports = $.extend(exports);
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