为什么我的正则表达式不会返回任何匹配？ [英] Why my regular expression doesn't return any matches?

问题描述

我正在尝试构建一个正则表达式，稍后我可以解析字符串中的所有值，如下所示：

Hi, I'm trying to build a regular expression that later on I can parse all the values from a string as follows:

FFD:000D6F0002542F8D,531F,-82,FF
FFD:000D6F00015D518F,B643,-70,FF
FFD:000D6F0000D5493B,9915,-71,FF
FFD:000D6F00015D5CE1,9F69,-83,FF
FFD:000D6F000257F6CF,4D1F,-60,FF
SED:000D6F0000BA1A7E,63AA,-70,FF
FFD:000D6F0000D5F442,7CDE,-84,FE
FFD:000D6F0000BA19B9,0000,-59,FF
FFD:000D6F00024D00E5,D63E,-62,FF
FFD:000D6F0000D5F277,0290,-81,FF
FFD:000D6F0000D57E63,3B1F,-84,FB
FFD:000D6F000257F5EC,B2BE,-56,FF
FFD:000D6F00015CA322,9EA6,-68,FF

RegEx that I'目前已建成：

[[（COO）] [（FFD）] [（RFD）] [（MED）] [（SED）] [（ZED）]] +：[0- 9 [AF]] {16} +，+ [0-9 [AF]] {4} +，+ [（\-\d）] +，+ [0-9 [AF]] {2}



这个网站测试我的expr非常有帮助ession in java：

http://www.regular-expressions.info/email.html [ ^ ]



看起来它正在找到所有表情，但它没有返回任何匹配为什么会这样？



非常感谢。

RegEx that I've built so far:
[[(COO)][(FFD)][(RFD)][(MED)][(SED)][(ZED)]]+:[0-9[A-F]]{16}+,+[0-9[A-F]]{4}+,+[(\-\d)]+,+[0-9[A-F]]{2}

This website has been very helpful testing my expression in java:
http://www.regular-expressions.info/email.html[^]

It looks like it's finding all expressions but it's not returning any matches why is that?

Thank you very much.

推荐答案

你的正则表达式有一些语法错误。喜欢[] {16} +和一些逻辑错误...



见这一个：

Your regex has some syntax errors. Like []{16}+ and some logic errors...

See this one:

(COO|FFD|RFD|MED|SED|ZED):[0-9A-F]{16},[0-9A-F]{4},\-\d+,[0-9A-F]{2}

现在解释......

Now to explanations...

(COO|FFD|RFD|MED|SED|ZED)

- 找到其中一个字符序列

- find one of these character sequences

[0-9A-F]{16}

- 十六进制范围内的16个字符

- 16 characters from the hexadecimal range

\-\d+

- 减号（ - ）和至少一位数



在视觉上看到： http://www.regexper.com/#（COO％7CFFD％7CRFD％7CMED％7CSED％7CZED）％3A％5B0-9A-F％5D％7B16％7D％2C％5B0-9A-F％ 5D％7B4％7D％2C％5C-％5Cd％2B％2C％5B0-9A-F％5D％7B2％7D [ ^ ]

- a minus (-) sign and at least one digit

See it here visually:http://www.regexper.com/#(COO%7CFFD%7CRFD%7CMED%7CSED%7CZED)%3A%5B0-9A-F%5D%7B16%7D%2C%5B0-9A-F%5D%7B4%7D%2C%5C-%5Cd%2B%2C%5B0-9A-F%5D%7B2%7D[^]

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