匹配除正则表达式模式之外的所有内容
[英]match everything except the regex pattern
问题描述
I have a xml content as below
我有一个 xml 内容如下
<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
</body>
</html>
In the above i want to mach everything except 502 Bad Gateway in title.在上面，我想处理除标题中的502 Bad Gateway之外的所有内容。
I used below regex to match 502 Bad Gateway我使用下面的正则表达式来匹配502 Bad Gateway
(?<=title>)(.*?)(?=<\/title>)
Can someone tell me how to negate it?有人可以告诉我如何否定它吗？
I tried below suggestions我尝试了以下建议
(?!((?<=title>)(.*?)(?=<\/title>)))
[^((?<=title>)(.*?)(?=<\/title>))]
But they didn't worked.但他们没有奏效。
I am using ruby regex我正在使用 ruby 正则表达式
3 个解决方案
解决方案1
0 2021-02-24 07:54:21
You want get everything that is not matched by the regEx?你想得到正则表达式不匹配的所有内容吗？
Save your result with the language do you prefer.使用您喜欢的语言保存结果。
Use some tools, for eg:使用一些工具，例如：
- WinMerge WinMerge
- Beyond Compare超越比较
- KDiff3 KDiff3
- DiffMerge差异合并
- Merge合并
- ... ...
Some of them could generate a patch.其中一些可以生成补丁。 Use File -> Open... to open the two versions for comparison.使用 File -> Open... 打开两个版本进行比较。 This will give you a nice view of what you have changed.这将使您对所做的更改有一个很好的了解。 https://docs.moodle.org/dev/How_to_create_a_patch#Creating_a_patch_using_WinMerge https://docs.moodle.org/dev/How_to_create_a_patch#Creating_a_patch_using_WinMerge
解决方案2
0 2021-02-24 08:03:36
You could just use sub to remove '502 Bad Gateway' in title :您可以只使用sub删除title中的“502 Bad Gateway”：
xml = "<head><title>502 Bad Gateway</title></head>"
xml.sub("<title>502 Bad Gateway</title>", "<title></title>")
# => "<head><title></title></head>"
解决方案3
0 2021-02-24 08:13:13
Not very familiar with ruby but I assume the features of regex are similar with PCRE, which supports control verbs and recursion.对 ruby 不太熟悉，但我认为正则表达式的功能与 PCRE 相似，它支持控制动词和递归。
Here's the regex that matches your description:这是与您的描述相匹配的正则表达式：
((?<=title>)502 Bad Gateway(?=<\/title>))(*SKIP)(*F)|(?:(?!(?1))[\s\S])+
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