git ssb

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(function (global) {
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function addAccents(str) {
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	// http://www.the-art-of-web.com/javascript/search-highlight/
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	return str
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		// .replace(/([ao])e/ig, "$1")
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		.replace(/e/ig, "[eèéêë]")
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		.replace(/a/ig, "([aàâä]|ae)")
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		.replace(/i/ig, "[iîï]")
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		.replace(/o/ig, "([oôö]|oe)")
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		.replace(/u/ig, "[uùûü]")
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		.replace(/y/ig, "[yÿ]");
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}
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function setSelection(startNode, startOffset, endNode, endOffset) {
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	var range = document.createRange();
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	range.setStart(startNode, startOffset);
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	range.setEnd(endNode, endOffset);
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	var sel = window.getSelection();
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	sel.removeAllRanges();
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	sel.addRange(range);
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}
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function Searcher(container) {
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	this.container = container;
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}
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Searcher.prototype.highlight = function () {
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	// if (this.isHighlighted)
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};
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Searcher.prototype.setQuery = function (str) {
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	if (str == this.queryStr)
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		return;
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	this.queryStr = str;
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	this.queryLen = str.length;
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	this.query = new RegExp(addAccents(str), "i");
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};
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function log() {
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	var str;
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	try {
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		str = [].slice.call(arguments).join(", ");
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	} catch(e) {
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		str = e.message;
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	}
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	document.body.appendChild(document.createElement("pre"))
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		.appendChild(document.createTextNode(str));
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}
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window.log = log;
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function getNextTextNode(node, container, wrap) {
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	do {
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		if (node.firstChild) {
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			console.log('firstchild');
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			node = node.firstChild;
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		} else if (node.nextSibling) {
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			console.log('nextsib');
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			node = node.nextSibling;
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		} else {
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			do {
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				if (node == container)
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					return wrap ? getFirstTextNode(container) : null;
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				console.log('parent');
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				node = node.parentNode;
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			} while (!node.nextSibling);
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				console.log('next sib');
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			node = node.nextSibling;
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		}
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	} while (node.nodeType != Node.TEXT_NODE);
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	return node;
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}
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function getPrevTextNode(node, container, wrap) {
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	do {
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		if (node.previousSibling) {
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			console.log('previous sib');
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			node = node.previousSibling;
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			while (node.lastChild)
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				node = node.lastChild;
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		} else if (node.parentNode != container) {
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			node = node.parentNode;
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		} else {
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			return wrap ? getLastTextNode(container) : null;
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		}
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	} while (node.nodeType != Node.TEXT_NODE);
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	return node;
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}
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function getFirstTextNode(container) {
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	return getNextTextNode(container, container);
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}
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function getLastTextNode(container) {
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	return getPrevTextNode(container, container);
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}
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Searcher.prototype.selectNext = function () {
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	if (!this.queryLen)
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		return;
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	var sel = window.getSelection();
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	var startNode = sel.focusNode || getFirstTextNode(this.container);
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	var startOffset = sel.focusOffset;
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	if (!startNode)
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		return;
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	if (!startNode.data)
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		console.log('start', startNode);
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	for (var node = startNode, str = node.data.substr(startOffset);
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		node;
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		node = getNextTextNode(node, this.container, true),
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			str = node.data)
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	{
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		var m = str.match(this.query);
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		if (m) {
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			var i = m.index;
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			console.log('next node', node, 'index', i);
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			setSelection(node, i, node, i + m[0].length);
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			return;
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		}
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	}
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};
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Searcher.prototype.selectPrev = function () {
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	if (!this.queryLen)
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		return;
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	var sel = window.getSelection();
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	var endNode = sel.anchorNode || getLastTextNode(this.container);
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	var endOffset = sel.anchorOffset;
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	if (!endNode)
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		return;
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	if (!endNode.data)
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		console.log('end', endNode);
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	for (var node = endNode, str = endNode.data.substr(0, endOffset);
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		node;
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		node = getPrevTextNode(node, this.container, true),
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		str = node.data)
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	{
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		var m = str.match(this.query);
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		if (m) {
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			var i = m.index;
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			console.log('prev node', node, 'index', i);
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			setSelection(node, i, node, i + m[0].length);
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			return;
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		}
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	}
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};
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if (global.module)
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	module.exports = Searcher;
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else
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	global.Searcher = Searcher;
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}(this));
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