正则表达式从英国邮政编码获取区号和区号 [英] Regex to get area and district codes from UK postcodes

问题描述

基本上，我需要一个正则表达式来匹配英国邮政编码中的第一个字母序列(简单)和另一个匹配以下数字的正则表达式(不太容易).

Basically, I need a regex that would match first sequence of letters in UK postcode (easy) and another regex which would match the following number (not so easy).

可能的组合和匹配示例:

Examples of possible combinations and matches:

AA9A 9AA    regex1: AA    regex2: 9
A9A 9AA     regex1: A     regex2: 9
A9 9AA      regex1: A     regex2: 9
A99 9AA     regex1: A     regex2: 99
AA9 9AA     regex1: AA    regex2: 9
AA99 9AA    regex1: AA    regex2: 99

poscodes 中的空格只是为了清楚起见，它们可能存在也可能不存在，因此必须忽略.

Spaces in poscodes are only there for clarity, they might or might not be there, therefor must be disregarded.

我可以使用这两个正则表达式的一些帮助，尤其是 regex2(匹配数字).顺便说一句，我将在 MySQL 5.6 中运行它

I could use some help with these two regular expressions, especially regex2 (matching the number). By the way, I'm gonna be running this in MySQL 5.6

更新:请注意:无论如何，最后 3 个字符将始终被忽略，这是唯一始终适用的模式 - 从我的示例中应该可以看到.

UPDATE: Just to note: last 3 characters will always be ignored no matter what, that's the only pattern that always applies - it should be visible from my examples.

UPDATE2:对不起，如果我之前不够清楚 - 我不需要验证邮政编码，我需要提取区号和区号.

UPDATE2: Sorry if I wasn't clear enough before - I don't need to validate the post codes, I need to extract area and district codes.

UPDATE3: 再次强调:必须忽略空格，它可以是 AA99 9AA 或 AA999AA - 在这两种情况下都是 regex2(提取号)应该是 99

UPDATE3: Just to emphasize again: white space must be disregarded, it could be AA99 9AA or AA999AA - in both cases the regex2 (extract number) should be 99

UPDATE4:感谢您的所有回答，不幸的是我刚刚发现 MySQL 无法提取正则表达式匹配项.一路走好，MySQL，再次证明是无用的.

UPDATE4: Thanks for all your answers, unfortunately I just found out that MySQL can't extract regex matches. Way to go, MySQL, proving to be useless yet again.

推荐答案

你可以使用这个正则表达式:

You can use this regex:

([A-Z]+)([0-9]+).*?[A-Z0-9]{3}

并使用匹配组#1和#2

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