正则表达式，如果部分匹配，则选择整个单词

本文介绍了正则表达式，如果部分匹配，则选择整个单词的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我希望能够在比赛之前和之后选择整个单词...

I want to be able to select the WHOLE word, before and after the match...

当前，它仅选择匹配单词中的部分.因此，如果我要照看"Doglets" 一词中的"Dog" ，它会选择Dog.

Currently it only selects the part in the word that's matched. So if i'm looking after "Dog" in the word "Doglets" it selects Dog.

我希望它选择Doglets.而且，如果是这种情况，我还希望它选择letDog.

I want it to select Doglets. And I also want it to select letsDog if that was the case.

return html.replace(new RegExp('(\\b)(' + query + ')(\\b)', 'ig'), "<span class='search-enlight'>$&</span>");

更新:

function filterSearchWords() { var query = $("#searchquery").val(); go(query); function go(query) { $.extend($.expr[':'], { 'containsi': function (elem, i, match, array) { return (elem.textContent || elem.innerText || '').toLowerCase() .indexOf((match[3] || "").toLowerCase()) >= 0; } }); $(".search-result p:containsi(" + query + ")").html(function (_, html) { return html.replace(new RegExp('(\\b)( \\w*' + query + '\\w*)(\\b)', 'ig'), "<span class='search-enlight'>$&</span>") }); $(".search-result h2 a:containsi(" + query + ")").html(function (_, html) { return html.replace(new RegExp('(\\b)( \\w*' + query + '\\w*)(\\b)', 'ig'), "<span class='search-enlight'>$&</span>") }); console.log(query); } }

现在可以匹配完整的单词，但是不能与大写字母匹配，i标志似乎不起作用

It matches full words now, however it does not match with capitalized letters, the i flag seems not to work

HTML:

div class="search-result"> <span class="thumb" style="font-family: 'draftit'; float: left;">&#xe811;</span>&nbsp; <h2 class="title"><a href="/produkter/malins-testprodukt/skatteavdrag/berakning-av-skatteavdrag/skatteavdrag-nar-skattesedel-inte-har-lamnats/">Skatteavdrag n&#228;r skattesedel inte har l&#228;mnats</a></h2> <p> Arbetsgivare f&#229;r fr&#229;n Skatteverket besked om hur skatteavdraget f&#246;r respektive anst&#228;lld ska ber&#228;knas. Se avsnittet tabellavdrag och CSR-f&#246;rfr&#229;gan . Arbetstagaren beh&#246;ver d&#229; inte l... </p> </div>

推荐答案

在这种情况下，您需要将整个单词包括在Regex中，请尝试以下操作:

In that case you need to include the whole word in your Regex, try the following one:

(\\b)( \\w*'+ query + '\\w*)(\\b)

您的代码将是:

var html = "The Doggy dog is with Doglets and Doggy too!"; var query = "dog"; document.write(html.replace(new RegExp('(\\b)( \\w*' + query + '\\w*)(\\b)', 'ig'), "<span class='search-enlight'>$&</span>"));

.search-enlight { background-color: yellow; color: red; }