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53 lines
1.4 KiB
53 lines
1.4 KiB
5 years ago
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function highlight(s,id) {
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if(s.length == 0) {
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var obj = document.getElementById(id);
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var t = obj.innerHTML.replace(/<span\s+class=.?highlight.?>([^<>]*)<\/span>/gi, "$1");
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obj.innerHTML = t;
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return false;
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}
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s = encode(s);
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var obj = document.getElementById(id);
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var t = obj.innerHTML.replace(/<span\s+class=.?highlight.?>([^<>]*)<\/span>/gi, "$1");
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obj.innerHTML = t;
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var cnt = loopSearch(s, obj);
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t = obj.innerHTML
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var r = /{searchHL}(({(?!\/searchHL})|[^{])*){\/searchHL}/g
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t = t.replace(r, "<span class='highlight'>$1</span>");
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obj.innerHTML = t;
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function encode(s) {
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return s.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/([\\\.\*\[\]\(\)\$\^])/g, "\\$1");
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}
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function decode(s) {
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return s.replace(/\\([\\\.\*\[\]\(\)\$\^])/g, "$1").replace(/>/g, ">").replace(/</g, "<").replace(/&/g, "&");
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}
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function loopSearch(s, obj) {
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var cnt = 0;
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if(obj.nodeType == 3) {
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cnt = replace(s, obj);
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return cnt;
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}
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for(var i = 0, c; c = obj.childNodes[i]; i++) {
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if(!c.className || c.className != "highlight") {
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cnt += loopSearch(s, c);
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}
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}
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return cnt;
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}
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function replace(s, dest) {
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var r = new RegExp(s, "g");
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var tm = null;
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var t = dest.nodeValue;
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var cnt = 0;
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if(tm = t.match(r)) {
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cnt = tm.length;
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t = t.replace(r, "{searchHL}" + decode(s) + "{/searchHL}")
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dest.nodeValue = t;
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}
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return cnt;
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}
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}
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