22

我想使用 jQuery/Java 脚本搜索和突出显示文本。

示例 HTML 1：

<div id="div1"><b>Good</b> <b>Morning</b> </div>
<div id="div2">Good Evening</div> 
<div id="div3">Good Morning</div>Searched String = "Good Morning"

当我搜索字符串“早安”时，div1 和 div3 中的内容都应该突出显示。IE。输出html应该是

<div id="div1"><span class="highlight"><b>Good</b> <b>Morning</b> </span></div>
<div id="div2">Good Evening</div> 
<div id="div3"><span class="highlight">Good Morning</span></div>

我使用插件https://raw.github.com/bartaz/sandbox.js/master/jquery.highlight.js将搜索到的内容包含在 span 中。但只有 div3 突出显示。请帮忙。

4

4 回答 4

44

http://jsfiddle.net/UPs3V/291/

 var src_str = $("#test").text();
var term = "my text";
term = term.replace(/(\s+)/,"(<[^>]+>)*$1(<[^>]+>)*");
var pattern = new RegExp("("+term+")", "gi");

src_str = src_str.replace(pattern, "<mark>$1</mark>");
src_str = src_str.replace(/(<mark>[^<>]*)((<[^>]+>)+)([^<>]*<\/mark>)/,"$1</mark>$2<mark>$4");

$("#test").html(src_str);

试试这个可能对你有帮助

于 2013-11-01T04:58:16.803 回答
17

演示

脚本

jQuery.fn.highlight = function(pat) {
 function innerHighlight(node, pat) {
  var skip = 0;
  if (node.nodeType == 3) {
   var pos = node.data.toUpperCase().indexOf(pat);
   if (pos >= 0) {
    var spannode = document.createElement('span');
    spannode.className = 'highlight';
    var middlebit = node.splitText(pos);
    var endbit = middlebit.splitText(pat.length);
    var middleclone = middlebit.cloneNode(true);
    spannode.appendChild(middleclone);
    middlebit.parentNode.replaceChild(spannode, middlebit);
    skip = 1;
   }
  }
  else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
   for (var i = 0; i < node.childNodes.length; ++i) {
    i += innerHighlight(node.childNodes[i], pat);
   }
  }
  return skip;
 }
 return this.each(function() {
  innerHighlight(this, pat.toUpperCase());
 });
};

jQuery.fn.removeHighlight = function() {
 function newNormalize(node) {
    for (var i = 0, children = node.childNodes, nodeCount = children.length; i < nodeCount; i++) {
        var child = children[i];
        if (child.nodeType == 1) {
            newNormalize(child);
            continue;
        }
        if (child.nodeType != 3) { continue; }
        var next = child.nextSibling;
        if (next == null || next.nodeType != 3) { continue; }
        var combined_text = child.nodeValue + next.nodeValue;
        let new_node = node.ownerDocument.createTextNode(combined_text);
        node.insertBefore(new_node, child);
        node.removeChild(child);
        node.removeChild(next);
        i--;
        nodeCount--;
    }
 }

 return this.find("span.highlight").each(function() {
    var thisParent = this.parentNode;
    thisParent.replaceChild(this.firstChild, this);
    newNormalize(thisParent);
 }).end();
};

HTML

Search: <input type="text" id="text-search" />

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<script type="text/javascript">
$(function() {
    $('#text-search').bind('keyup change', function(ev) {
        // pull in the new value
        var searchTerm = $(this).val();

        // remove any old highlighted terms
        $('body').removeHighlight();

        // disable highlighting if empty
        if ( searchTerm ) {
            // highlight the new term
            $('body').highlight( searchTerm );
        }
    });
});
</script>
于 2013-11-01T05:02:21.060 回答
7

试试这个：- http://jsfiddle.net/adiioo7/H7CqV/

您需要从中删除b标签，div1并且为了应用粗体属性，您可以使用 css 属性font-weight:bold。

HTML:-

<div id="div1" style="font-weight:bold">Good Morning</div>
<div id="div2">Good Evening</div> 
<div id="div3">Good Morning</div>

或者

<div id="div1"><b>Good Morning</b></div>
<div id="div2">Good Evening</div> 
<div id="div3">Good Morning</div>

JS：-

$("body").highlight("Good Morning");

编辑：highlight是第 3 方 jquery lib，更多信息在这里：http: //johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html

于 2013-11-01T05:11:00.840 回答
2

在上面所有使用 HTML 标记的答案搜索中尝试此操作。

又短又甜

这个答案完全可以帮助您获得我在项目中实现的完美搜索文本

<script type="text/javascript">
   var term = "my text";
   $('#test').html(function () {
     return $(this).html().replace(new RegExp(term + "(?=[^>]*<)","ig"), "<mark>$&</mark>");
   });
</script>
于 2020-11-18T06:57:18.887 回答