两个字符串之间的正则表达式匹配? [英] Regex matching between two strings?

问题描述

我似乎无法找到一种方法来提取所有评论，如下例所示.

<预><代码>>>>进口重新>>>字符串 = '''... <!-- 一个... -->... <!-- 两个 -- -- -->... <!-- 三-->...'''>>>m = re.findall ( '<!--([^\(-->)]+)-->', string, re.MULTILINE)>>>米['一\n'，'三']

带有 two -- -- 的块很可能由于错误的正则表达式而不匹配.有人可以指出我如何在两个字符串之间提取匹配项的正确方向.

<小时>

我已经测试了你们在评论中提出的建议......这里是几乎没有升级的工作解决方案.

<预><代码>>>>m = re.findall ( '', string, re.MULTILINE)>>>米[' 二三 ']>>>m = re.findall ( '<!--(.*\n?)-->', string, re.MULTILINE)>>>米['一\n'，'二---'，'三']

谢谢！

解决方案

这应该可以解决问题

 m = re.findall ( '', string, re.DOTALL)

I can't seem to find a way to extract all comments like in following example.

>>> import re
>>> string = '''
... <!-- one 
... -->
... <!-- two -- -- -->
... <!-- three -->
... '''
>>> m = re.findall ( '<!--([^\(-->)]+)-->', string, re.MULTILINE)
>>> m
[' one \n', ' three ']

block with two -- -- is not matched most likely because of bad regex. Can someone please point me in right direction how to extract matches between two strings.

---

Hi I've tested what you guys suggested in comments.... here is working solution with little upgrade.

>>> m = re.findall ( '<!--(.*?)-->', string, re.MULTILINE)
>>> m
[' two -- -- ', ' three ']
>>> m = re.findall ( '<!--(.*\n?)-->', string, re.MULTILINE)
>>> m
[' one \n', ' two -- -- ', ' three ']

thanks!

解决方案

this should do the trick

 m = re.findall ( '<!--(.*?)-->', string, re.DOTALL)

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