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Allow ignore html elements selectively #8

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davidmpaz wants to merge 1 commit into from
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Allow ignore html elements selectively #8

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34 changes: 22 additions & 12 deletions jquery.highlight.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@
*/

jQuery.extend({
highlight: function (node, re, nodeName, className) {
highlight: function (node, re, nodeName, className, ignore) {
if (node.nodeType === 3) {
var match = node.data.match(re);
if (match) {
Expand All @@ -57,11 +57,15 @@ jQuery.extend({
wordNode.parentNode.replaceChild(highlight, wordNode);
return 1; //skip added node in parent
}
} else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
!/(script|style)/i.test(node.tagName) && // ignore script and style nodes
!(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
for (var i = 0; i < node.childNodes.length; i++) {
i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
} else if (node.nodeType === 1 && node.childNodes) { // only element nodes that have children
var regex = new RegExp("(" + ignore.join("|") + ")", "i"),
condition = !regex.test(node.tagName) && // ignore configured nodes
!(node.tagName === nodeName.toUpperCase() && node.className === className); // skip if already highlighted

if(condition) {
for (var i = 0; i < node.childNodes.length; i++) {
i += jQuery.highlight(node.childNodes[i], re, nodeName, className, ignore);
}
}
}
return 0;
Expand All @@ -80,17 +84,23 @@ jQuery.fn.unhighlight = function (options) {
};

jQuery.fn.highlight = function (words, options) {
var settings = { className: 'highlight', element: 'span', caseSensitive: false, wordsOnly: false };
var settings = {
className: 'highlight',
element: 'span',
caseSensitive: false,
wordsOnly: false,
ignoreNode: ['script', 'style']
};
jQuery.extend(settings, options);

if (words.constructor === String) {
words = [words];
}
words = jQuery.grep(words, function(word, i){
return word != '';
return word != '';
});
words = jQuery.map(words, function(word, i) {
return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
});
if (words.length == 0) { return this; };

Expand All @@ -100,9 +110,9 @@ jQuery.fn.highlight = function (words, options) {
pattern = "\\b" + pattern + "\\b";
}
var re = new RegExp(pattern, flag);

return this.each(function () {
jQuery.highlight(this, re, settings.element, settings.className);
jQuery.highlight(this, re, settings.element, settings.className, settings.ignoreNode);
});
};