(domain.zzz domain.zz.zz domain.zz)和/something/的regexp

Question

正在尝试获取domain.zz、domain.zzz、domain.zz.zz或/something。

import re
the_string = """lalalla?url=http2F%2Fdomain.zz%slgkfgs0s"""
the_string = """lalalla?url=http2F%2Fdomain.zz.zz/something%slgkfgs0sf"""
the_string = """lalalla?url=randomh564domain.zzz/something%slgkfgs0sf"""
the_string = """lalalla?url=randomeefsdlk876%domain.zz/something%slgkfgs0sf"""
the_string = """p%3A%2F%2Fdummy_test.com/ratata%2F&amp"""
the_string = """p%3A%2F%2Fdum2test.co.uk/something%2F&-kj"""

这就是我现在所拥有的：

>>> print( re.findall('(?:www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4})(?:/[a-z0-9]+)',the_string))
domain.zzz/something
domain.zz/something
domain.zz.zz/something

>>> print( re.findall('www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}',the_string))
domain.zzz
domain.zz
domain.zz.zz

我想让这两组人回答一个问题。

编辑:这几乎是完美的：'(a-z0-9.-+.{2,4})|(?:/a-z0-9+)‘，但它从字符串的开头抓取了一些垃圾。

字符串的随机性比本例中的要大得多:我将重点放在这3种情况上：

domain.co.uk/something
      ^  ^  ^
domain.com/something
      ^   ^
domain.com
      ^   

Answer 1

这样如何：

import re
the_string = """lalalla?url=http@domain.zz%slgkfgs0sf"""
the_string = """lalalla?url=http@domain.zz.zz/something%slgkfgs0sf"""
#the_string = """lalalla?url=http@domain.zzz/something%slgkfgs0sf"""
#the_string = """lalalla?url=ht%domain.zz/something%slgkfgs0sf"""
#the_string = """lalalla?url=httpsd%domain.zz.zz/something%slgkfgs0sf"""
#the_string = """lalalla?url=www.domain.zzz/something%slgkfgs0sf"""

test = re.compile('(?P<base>[a-zA-Z0-9_\-\.]*?[a-zA-Z0-9_\-]+\.[z\.]+)(?P<extra>/[a-zA-Z0-9_\-]+)')

for match in test.finditer(the_string):
    print(match.group('base'))
    print(match.group('extra'))

输出：

domain.zz.zz
/something

这样你就可以把数据放在'base‘和’extra‘中了……把它们组合起来，再一次得到完整的字符串。

编辑:更新了模式以更好地进行域匹配，并更改了python 3语法的打印

Answer 2

试试这个，我不知道这是否完全符合你的要求，但也许你可以澄清问题，如果有问题，模式更进一步……

print re.findall('=(?:[^@%/.]*(?:@|%(?:2F)?))?(?:www.)?(?P<domain>[^%@/]*)(?:/(?P<folder>[^%]*))?(?:[%@/].*)?$',the_string,re.MULTILINE)

如果您愿意，可以使用match.group('domain')和match.group('folder')访问这些部分

输出：

[('domain.zz', ''), ('domain.zz.zz', 'something'), ('randomh564domain.zzz', 'something'), ('domain.zz', 'something'), ('domain.zz.zz', 'something'), ('domain.zzz', 'something')]