From 9c48c5aefad070e01d410775178648e618a4f9c1 Mon Sep 17 00:00:00 2001
From: renato <renato@rezo.net>
Date: Fri, 18 May 2007 19:05:54 +0000
Subject: [PATCH] escape special chars in regexs and avoid looping the browser
on some conditions
---
dist/javascript/SearchHighlight.js | 451 +++++++++++++++--------------
1 file changed, 226 insertions(+), 225 deletions(-)
diff --git a/dist/javascript/SearchHighlight.js b/dist/javascript/SearchHighlight.js
index 36df841b74..5c3ae5dc87 100644
--- a/dist/javascript/SearchHighlight.js
+++ b/dist/javascript/SearchHighlight.js
@@ -1,225 +1,226 @@
-/**
- * SearchHighlight plugin for jQuery
- *
- * Thanks to Scott Yang <http://scott.yang.id.au/>
- * for the original idea and some code
- *
- * @author Renato Formato <renatoformato@virgilio.it>
- *
- * @version 0.32
- *
- * Options
- * - exact (string, default:"exact")
- * "exact" : find and highlight the exact words.
- * "whole" : find partial matches but highlight whole words
- * "partial": find and highlight partial matches
- *
- * - style_name (string, default:'hilite')
- * The class given to the span wrapping the matched words.
- *
- * - style_name_suffix (boolean, default:true)
- * If true a different number is added to style_name for every different matched word.
- *
- * - debug_referrer (string, default:null)
- * Set a referrer for debugging purpose.
- *
- * - engines (array of regex, default:null)
- * Add a new search engine regex to highlight searches coming from new search engines.
- * The first element is the regex to match the domain.
- * The second element is the regex to match the query string.
- * Ex: [/^http:\/\/my\.site\.net/i,/search=([^&]+)/i]
- *
- * - startHighlightComment (string, default:null)
- * The text of a comment that starts a block enabled for highlight.
- * If null all the document is enabled for highlight.
- *
- * - stopHighlightComment (string, default:null)
- * The text of a comment that ends a block enabled for highlight.
- * If null all the document is enabled for highlight.
- */
-
-(function($){
- jQuery.fn.SearchHighlight = function(options) {
- var ref = options.debug_referrer || document.referrer;
- if(!ref && options.keys==undefined) return this;
-
- SearchHighlight.options = $.extend({exact:"exact",style_name:'hilite',style_name_suffix:true},options);
-
- if(options.engines) SearchHighlight.engines.unshift(options.engines);
- var q = options.keys!=undefined?options.keys.split(/[\s,\+\.]+/):SearchHighlight.decodeURL(ref,SearchHighlight.engines);
- if(q && q.join("")) {
- SearchHighlight.buildReplaceTools(q);
- return this.each(function(){
- var el = this;
- if(el==document) el = $("body")[0];
- SearchHighlight.hiliteElement(el, q);
- })
- } else return this;
- }
-
- var SearchHighlight = {
- options: {},
- regex: [],
- engines: [
- [/^http:\/\/(www\.)?google\./i, /q=([^&]+)/i], // Google
- [/^http:\/\/(www\.)?search\.yahoo\./i, /p=([^&]+)/i], // Yahoo
- [/^http:\/\/(www\.)?search\.msn\./i, /q=([^&]+)/i], // MSN
- [/^http:\/\/(www\.)?search\.live\./i, /query=([^&]+)/i], // MSN Live
- [/^http:\/\/(www\.)?search\.aol\./i, /userQuery=([^&]+)/i], // AOL
- [/^http:\/\/(www\.)?ask\.com/i, /q=([^&]+)/i], // Ask.com
- [/^http:\/\/(www\.)?altavista\./i, /q=([^&]+)/i], // AltaVista
- [/^http:\/\/(www\.)?feedster\./i, /q=([^&]+)/i], // Feedster
- [/^http:\/\/(www\.)?search\.lycos\./i, /q=([^&]+)/i], // Lycos
- [/^http:\/\/(www\.)?alltheweb\./i, /q=([^&]+)/i], // AllTheWeb
- [/^http:\/\/(www\.)?technorati\.com/i, /([^\?\/]+)(?:\?.*)$/i], // Technorati
- ],
- subs: {},
- decodeURL: function(URL,reg) {
- URL = decodeURIComponent(URL);
- var query = null;
- $.each(reg,function(i,n){
- if(n[0].test(URL)) {
- var match = URL.match(n[1]);
- if(match) {
- query = match[1];
- return false;
- }
- }
- })
-
- if (query) {
- query = query.replace(/(\'|")/, '\$1');
- query = query.split(/[\s,\+\.]+/);
- }
-
- return query;
- },
- regexAccent : [
- [/[\xC0-\xC5\u0100-\u0105]/ig,'a'],
- [/[\xC7\u0106-\u010D]/ig,'c'],
- [/[\xC8-\xCB]/ig,'e'],
- [/[\xCC-\xCF]/ig,'i'],
- [/\xD1/ig,'n'],
- [/[\xD2-\xD6\xD8]/ig,'o'],
- [/[\u015A-\u0161]/ig,'s'],
- [/[\u0162-\u0167]/ig,'t'],
- [/[\xD9-\xDC]/ig,'u'],
- [/\xFF/ig,'y'],
- [/[\x91\x92\u2018\u2019]/ig,'\'']
- ],
- matchAccent : /[\x91\x92\xC0-\xC5\xC7-\xCF\xD1-\xD6\xD8-\xDC\xFF\u0100-\u010D\u015A-\u0167\u2018\u2019]/ig,
- replaceAccent: function(q) {
- SearchHighlight.matchAccent.lastIndex = 0;
- if(SearchHighlight.matchAccent.test(q)) {
- for(var i=0,l=SearchHighlight.regexAccent.length;i<l;i++)
- q = q.replace(SearchHighlight.regexAccent[i][0],SearchHighlight.regexAccent[i][1]);
- }
- return q;
- },
- buildReplaceTools : function(query) {
- re = new Array();
- for (var i = 0, l=query.length; i < l; i ++) {
- query[i] = SearchHighlight.replaceAccent(query[i].toLowerCase());
- re.push(query[i]);
- }
-
- var regex = re.join("|");
- switch(SearchHighlight.options.exact) {
- case "exact":
- regex = '\\b(?:'+regex+')\\b';
- break;
- case "whole":
- regex = '\\b\\w*('+regex+')\\w*\\b';
- break;
- }
- SearchHighlight.regex = new RegExp(regex, "gi");
-
- for (var i = 0, l = query.length; i < l; i ++) {
- SearchHighlight.subs[query[i]] = SearchHighlight.options.style_name+
- (SearchHighlight.options.style_name_suffix?i+1:'');
- }
- },
- nosearch: /s(?:cript|tyle)|textarea/i,
- hiliteElement: function(el, query) {
- var startIndex, endIndex, comment = false, opt = SearchHighlight.options;
- if(!opt.startHighlightComment || !opt.stopHighlightComment)
- return SearchHighlight.hiliteTree(0,el.childNodes.length,el,query);
- if($.browser.msie) {
- var item = el.firstChild, i = 0, parents = [], startComment = false;
- while(item) {
- if(item.nodeType==8) {
- if($.trim(item.data)==opt.startHighlightComment) {
- comment = startComment = true;
- startIndex= i+1;
- } else if($.trim(item.data)==opt.stopHighlightComment) {
- endIndex = i;
- SearchHighlight.hiliteTree(startIndex,endIndex,item.parentNode,query);
- startComment = false;
- }
- }
- var next = item.nextSibling, back, child;
- if(!startComment && (child = item.firstChild)) {
- if(next)
- parents.push([next,i+1]);
- item = child;
- i = 0;
- } else {
- if(!(item = next)) {
- if(back = parents.pop()) {
- item = back[0];
- i = back[1];
- }
- } else i++;
- }
- }
- } else {
- var walker = document.createTreeWalker(el,NodeFilter.SHOW_COMMENT,null,false), currComment;
- while(currComment = walker.nextNode()) {
- if($.trim(currComment.data)==opt.startHighlightComment) {
- comment = true;
- el = currComment.parentNode;
- startIndex = 0;
- endIndex = el.childNodes.length;
- while(el.childNodes[startIndex]!=currComment) startIndex++;
- startIndex++;
- } else if($.trim(currComment.data)==opt.stopHighlightComment) {
- while(el.childNodes[endIndex-1]!=currComment) endIndex--;
- SearchHighlight.hiliteTree(startIndex,endIndex,el,query);
- }
- }
- }
- if(!comment) SearchHighlight.hiliteTree(0,el.childNodes.length,el,query);
- },
- hiliteTree : function(startIndex,endIndex,el,query) {
- var matchIndex = SearchHighlight.options.exact=="whole"?1:0;
- for(;startIndex<endIndex;startIndex++) {
- var item = el.childNodes[startIndex];
- if ( item.nodeType != 8 ) {//comment node
- //text node
- if(item.nodeType==3) {
- var text = item.data, textNoAcc = SearchHighlight.replaceAccent(text);
- var newtext="",match,index=0;
- SearchHighlight.regex.lastIndex = 0;
- while(match = SearchHighlight.regex.exec(textNoAcc)) {
- newtext += text.substr(index,match.index-index)+'<span class="'+
- SearchHighlight.subs[match[matchIndex].toLowerCase()]+'">'+text.substr(match.index,match[0].length)+"</span>";
- index = match.index+match[0].length;
- }
- if(newtext) {
- //add ther last part of the text
- newtext += text.substring(index);
- var repl = $.merge([],$("<span>"+newtext+"</span>")[0].childNodes);
- endIndex += repl.length-1;
- startIndex += repl.length-1;
- $(item).before(repl).remove();
- }
- } else {
- if(item.nodeType==1 && item.nodeName.search(SearchHighlight.nosearch)==-1)
- SearchHighlight.hiliteTree(0,item.childNodes.length,item,query);
- }
- }
- }
- }
-
- };
-})(jQuery)
+/**
+ * SearchHighlight plugin for jQuery
+ *
+ * Thanks to Scott Yang <http://scott.yang.id.au/>
+ * for the original idea and some code
+ *
+ * @author Renato Formato <renatoformato@virgilio.it>
+ *
+ * @version 0.32
+ *
+ * Options
+ * - exact (string, default:"exact")
+ * "exact" : find and highlight the exact words.
+ * "whole" : find partial matches but highlight whole words
+ * "partial": find and highlight partial matches
+ *
+ * - style_name (string, default:'hilite')
+ * The class given to the span wrapping the matched words.
+ *
+ * - style_name_suffix (boolean, default:true)
+ * If true a different number is added to style_name for every different matched word.
+ *
+ * - debug_referrer (string, default:null)
+ * Set a referrer for debugging purpose.
+ *
+ * - engines (array of regex, default:null)
+ * Add a new search engine regex to highlight searches coming from new search engines.
+ * The first element is the regex to match the domain.
+ * The second element is the regex to match the query string.
+ * Ex: [/^http:\/\/my\.site\.net/i,/search=([^&]+)/i]
+ *
+ * - startHighlightComment (string, default:null)
+ * The text of a comment that starts a block enabled for highlight.
+ * If null all the document is enabled for highlight.
+ *
+ * - stopHighlightComment (string, default:null)
+ * The text of a comment that ends a block enabled for highlight.
+ * If null all the document is enabled for highlight.
+ */
+
+(function($){
+ jQuery.fn.SearchHighlight = function(options) {
+ var ref = options.debug_referrer || document.referrer;
+ if(!ref && options.keys==undefined) return this;
+
+ SearchHighlight.options = $.extend({exact:"exact",style_name:'hilite',style_name_suffix:true},options);
+
+ if(options.engines) SearchHighlight.engines.unshift(options.engines);
+ var q = options.keys!=undefined?options.keys.toLowerCase().split(/[\s,\+\.]+/):SearchHighlight.decodeURL(ref,SearchHighlight.engines);
+ if(q && q.join("")) {
+ SearchHighlight.buildReplaceTools(q);
+ return this.each(function(){
+ var el = this;
+ if(el==document) el = $("body")[0];
+ SearchHighlight.hiliteElement(el, q);
+ })
+ } else return this;
+ }
+
+ var SearchHighlight = {
+ options: {},
+ regex: [],
+ engines: [
+ [/^http:\/\/(www\.)?google\./i, /q=([^&]+)/i], // Google
+ [/^http:\/\/(www\.)?search\.yahoo\./i, /p=([^&]+)/i], // Yahoo
+ [/^http:\/\/(www\.)?search\.msn\./i, /q=([^&]+)/i], // MSN
+ [/^http:\/\/(www\.)?search\.live\./i, /query=([^&]+)/i], // MSN Live
+ [/^http:\/\/(www\.)?search\.aol\./i, /userQuery=([^&]+)/i], // AOL
+ [/^http:\/\/(www\.)?ask\.com/i, /q=([^&]+)/i], // Ask.com
+ [/^http:\/\/(www\.)?altavista\./i, /q=([^&]+)/i], // AltaVista
+ [/^http:\/\/(www\.)?feedster\./i, /q=([^&]+)/i], // Feedster
+ [/^http:\/\/(www\.)?search\.lycos\./i, /q=([^&]+)/i], // Lycos
+ [/^http:\/\/(www\.)?alltheweb\./i, /q=([^&]+)/i], // AllTheWeb
+ [/^http:\/\/(www\.)?technorati\.com/i, /([^\?\/]+)(?:\?.*)$/i], // Technorati
+ ],
+ subs: {},
+ decodeURL: function(URL,reg) {
+ URL = decodeURIComponent(URL);
+ var query = null;
+ $.each(reg,function(i,n){
+ if(n[0].test(URL)) {
+ var match = URL.match(n[1]);
+ if(match) {
+ query = match[1].toLowerCase();
+ return false;
+ }
+ }
+ })
+
+ if (query) {
+ query = query.replace(/(\'|")/, '\$1');
+ query = query.split(/[\s,\+\.]+/);
+ }
+
+ return query;
+ },
+ regexAccent : [
+ [/[\xC0-\xC5\u0100-\u0105]/ig,'a'],
+ [/[\xC7\u0106-\u010D]/ig,'c'],
+ [/[\xC8-\xCB]/ig,'e'],
+ [/[\xCC-\xCF]/ig,'i'],
+ [/\xD1/ig,'n'],
+ [/[\xD2-\xD6\xD8]/ig,'o'],
+ [/[\u015A-\u0161]/ig,'s'],
+ [/[\u0162-\u0167]/ig,'t'],
+ [/[\xD9-\xDC]/ig,'u'],
+ [/\xFF/ig,'y'],
+ [/[\x91\x92\u2018\u2019]/ig,'\'']
+ ],
+ matchAccent : /[\x91\x92\xC0-\xC5\xC7-\xCF\xD1-\xD6\xD8-\xDC\xFF\u0100-\u010D\u015A-\u0167\u2018\u2019]/ig,
+ replaceAccent: function(q) {
+ SearchHighlight.matchAccent.lastIndex = 0;
+ if(SearchHighlight.matchAccent.test(q)) {
+ for(var i=0,l=SearchHighlight.regexAccent.length;i<l;i++)
+ q = q.replace(SearchHighlight.regexAccent[i][0],SearchHighlight.regexAccent[i][1]);
+ }
+ return q;
+ },
+ escapeRegEx : /((?:\\{2})*)([[\]{}*?|])/g, //the special chars . and + are already gone at this point because they are considered split chars
+ buildReplaceTools : function(query) {
+ var re = [], regex;
+ $.each(query,function(i,n){
+ if(n = SearchHighlight.replaceAccent(n).replace(SearchHighlight.escapeRegEx,"$1\\$2"))
+ re.push(n);
+ });
+
+ regex = re.join("|");
+ switch(SearchHighlight.options.exact) {
+ case "exact":
+ regex = '\\b(?:'+regex+')\\b';
+ break;
+ case "whole":
+ regex = '\\b\\w*('+regex+')\\w*\\b';
+ break;
+ }
+ SearchHighlight.regex = new RegExp(regex, "gi");
+
+ $.each(re,function(i,n){
+ SearchHighlight.subs[n] = SearchHighlight.options.style_name+
+ (SearchHighlight.options.style_name_suffix?i+1:'');
+ });
+ },
+ nosearch: /s(?:cript|tyle)|textarea/i,
+ hiliteElement: function(el, query) {
+ var startIndex, endIndex, comment = false, opt = SearchHighlight.options;
+ if(!opt.startHighlightComment || !opt.stopHighlightComment)
+ return SearchHighlight.hiliteTree(0,el.childNodes.length,el,query);
+ if($.browser.msie) {
+ var item = el.firstChild, i = 0, parents = [], startComment = false;
+ while(item) {
+ if(item.nodeType==8) {
+ if($.trim(item.data)==opt.startHighlightComment) {
+ comment = startComment = true;
+ startIndex= i+1;
+ } else if($.trim(item.data)==opt.stopHighlightComment) {
+ endIndex = i;
+ SearchHighlight.hiliteTree(startIndex,endIndex,item.parentNode,query);
+ startComment = false;
+ }
+ }
+ var next = item.nextSibling, back, child;
+ if(!startComment && (child = item.firstChild)) {
+ if(next)
+ parents.push([next,i+1]);
+ item = child;
+ i = 0;
+ } else {
+ if(!(item = next)) {
+ if(back = parents.pop()) {
+ item = back[0];
+ i = back[1];
+ }
+ } else i++;
+ }
+ }
+ } else {
+ var walker = document.createTreeWalker(el,NodeFilter.SHOW_COMMENT,null,false), currComment;
+ while(currComment = walker.nextNode()) {
+ if($.trim(currComment.data)==opt.startHighlightComment) {
+ comment = true;
+ el = currComment.parentNode;
+ startIndex = 0;
+ endIndex = el.childNodes.length;
+ while(el.childNodes[startIndex]!=currComment) startIndex++;
+ startIndex++;
+ } else if($.trim(currComment.data)==opt.stopHighlightComment) {
+ while(el.childNodes[endIndex-1]!=currComment) endIndex--;
+ SearchHighlight.hiliteTree(startIndex,endIndex,el,query);
+ }
+ }
+ }
+ if(!comment) SearchHighlight.hiliteTree(0,el.childNodes.length,el,query);
+ },
+ hiliteTree : function(startIndex,endIndex,el,query) {
+ var matchIndex = SearchHighlight.options.exact=="whole"?1:0;
+ for(;startIndex<endIndex;startIndex++) {
+ var item = el.childNodes[startIndex];
+ if ( item.nodeType != 8 ) {//comment node
+ //text node
+ if(item.nodeType==3) {
+ var text = item.data, textNoAcc = SearchHighlight.replaceAccent(text);
+ var newtext="",match,index=0;
+ SearchHighlight.regex.lastIndex = 0;
+ while(match = SearchHighlight.regex.exec(textNoAcc)) {
+ newtext += text.substr(index,match.index-index)+'<span class="'+
+ SearchHighlight.subs[match[matchIndex].toLowerCase()]+'">'+text.substr(match.index,match[0].length)+"</span>";
+ index = match.index+match[0].length;
+ }
+ if(newtext) {
+ //add the last part of the text
+ newtext += text.substring(index);
+ var repl = $.merge([],$("<span>"+newtext+"</span>")[0].childNodes);
+ endIndex += repl.length-1;
+ startIndex += repl.length-1;
+ $(item).before(repl).remove();
+ }
+ } else {
+ if(item.nodeType==1 && item.nodeName.search(SearchHighlight.nosearch)==-1)
+ SearchHighlight.hiliteTree(0,item.childNodes.length,item,query);
+ }
+ }
+ }
+ }
+
+ };
+})(jQuery)
--
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