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我试图找到一种方法来突出显示 HTML 中的某些文本。给出了以下 HTML：

<div>This text contains matching words like word1 and word2 and xyzword1xyz and word2xyz and xyzword2</div>

应该被 a 包围的单词列表<span>是：

var array = ['word1','word2', 'word1word3'];

我当前的 Javascript：

$.each(array , function(index, elem){
            if(elem.length<3 || elem === "pan" || elem === "spa" || elem === "span")return true;             
            var re = new RegExp(""+elem+"(?=([^']*'[^']*')*[^']*$)","gi");
            returnString = returnString.replace(re, "<span class='markedString colorword1orword2'>$&</span>");                
});

生成的 div 如下所示：

<div>This text contains matching words like <span class='markedString colorword1orword2'>word1</span> and <span class='markedString colorword1orword2'>word2</span> and xyz<span class='markedString colorword1orword2'>word1</span>xyz and <span class='markedString colorword1orword2'>word2</span>xyz and xyz<span class='markedString colorword1orword2'>word2</span> and finally <span class='markedString colorword1orword2'><span class='markedString colorword1orword2'>word1</span>word3</span></div>

由于当前的正则表达式中的所有class='markedString colorword1orword2'内容不匹配。

问题：如果数组看起来像

var array = ['word1','word2', 'class'];

我最终会得到

<div>This text contains matching words like <span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word1</span> and <span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word2</span> and xyz<span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word1</span>xyz and <span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word2</span>xyz and xyz<span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word2</span> and finally <span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'><span <span class='markedString colorword1orword2'>class</span>='markedString colorword1orword2'>word1</span>word3</span></div>

这个例子是以某种方式构建的，因此可能有其他词可能存在于 HTML 标记本身中。

我需要一种模拟 regexp-lookbehind 的方法，以便我可以制定如下规则：

匹配不在两者之间的所有内容<span，>但允许级联匹配，例如<span>adsa<span>asdsa</span></span>

是否有任何正则表达式大师知道如何归档？

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1 回答 1

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您可以尝试这样的事情（不循环）：

var $div = $('#the_id_of_ the_div'),
    array = ['word1','word2', 'word1word3'],
    re = new RegExp(array.join('|'), 'gi'),
    divHTML = $div.text().replace(re, "<span class='markedString colorword1orword2'>$&</span>");
$div.html(divHTML);

这只是一个示例，您可能会div从帖子片段之外的某个 jQuery 对象中获取。

编辑

如果您div在包装器中有一堆 s，则可以执行以下操作：

var array = ['word1','word2', 'word1word3'],
    re = new RegExp(array.join('|'), 'gi');
$('#wrapper div').each(function () {
    var divHTML = $(this).text().replace(re, "<span class='markedString colorword1orword2'>$&</span>");
    $(this).html(divHTML);
    return;
});

jsFiddle 的现场演示。

于 2013-07-25T12:48:05.213 回答