正则表达式用于替换文本失败

Question

我尝试替换以下HTML中的heelo|paul，并将其替换为/heelo to paul/

<p>Dear sir&nbsp;&nbsp; {{heelo|Paul}}&nbsp; ,</p>\n<p>I'm just testing please wait</p>\n<p>yours faithfully,</p>\n<p>&nbsp; 

这是我使用的正则表达式：

str.replace(/.*?{{|}}/g, "/$1 to $2/")

但它会产生错误的结果：

<p>Dear sir&nbsp;&nbsp; /$1 to $2/heelo|Paul/$1 to $2/&nbsp; ,</p>\n<p>I'm just testing please wait</p>\n<p>yours faithfully,</p>\n<p>&nbsp

有什么想法吗？

Answer 1

我认为这就是你要找的......

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var p = document.getElementById('greetings');
p.innerText = p.innerText.replace(/.*?\{\{([\w\s]+)\|([\w\s]+)\}\}/, "/$1 to $2/");

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<p id="greetings">Dear sir&nbsp;&nbsp; {{heelo|Paul}}&nbsp; ,</p>\n<p>I'm just testing please wait</p>\n<p>yours faithfully,</p>\n<p>&nbsp; 

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Answer 2

您忘记了|与\一起逃脱，并且还将组添加到您想要的匹配项中。试试这个正则表达式：

(.*?{{)(.*?)\|(.*?)(?=}})

这是一个有效的Javascript：

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var myString = "<p>Dear sir&nbsp;&nbsp; {{heelo|Paul}}&nbsp; ,</p>\n<p>I'm just testing please wait</p>\n<p>yours faithfully,</p>\n<p>&nbsp;";
document.write(myString.replace(/(.*?{{)(.*?)\|(.*?)(?=}})/g, "$1/$2 to $3/"));

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