/
re_match_object.py
143 lines (100 loc) · 2.16 KB
/
re_match_object.py
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import re
s = 'aaa@xxx.com'
m = re.match(r'[a-z]+@[a-z]+\.[a-z]+', s)
print(m)
# <re.Match object; span=(0, 11), match='aaa@xxx.com'>
print(type(m))
# <class 're.Match'>
print(m.start())
# 0
print(m.end())
# 11
print(m.span())
# (0, 11)
print(m.group())
# aaa@xxx.com
print(type(m.group()))
# <class 'str'>
m = re.match(r'([a-z]+)@([a-z]+)\.([a-z]+)', s)
print(m)
# <re.Match object; span=(0, 11), match='aaa@xxx.com'>
print(m.groups())
# ('aaa', 'xxx', 'com')
print(m.group())
# aaa@xxx.com
print(m.group(0))
# aaa@xxx.com
print(m.group(1))
# aaa
print(m.group(2))
# xxx
print(m.group(3))
# com
# print(m.group(4))
# IndexError: no such group
print(m.group(0, 1, 3))
# ('aaa@xxx.com', 'aaa', 'com')
print(m.span())
# (0, 11)
print(m.span(3))
# (8, 11)
# print(m.span(4))
# IndexError: no such group
# print(m.span(0, 1))
# TypeError: span expected at most 1 arguments, got 2
m = re.match(r'(([a-z]+)@([a-z]+)\.([a-z]+))', s)
print(m)
# <re.Match object; span=(0, 11), match='aaa@xxx.com'>
print(m.groups())
# ('aaa@xxx.com', 'aaa', 'xxx', 'com')
m = re.match(r'(?P<local>[a-z]+)@(?P<SLD>[a-z]+)\.(?P<TLD>[a-z]+)', s)
print(m)
# <re.Match object; span=(0, 11), match='aaa@xxx.com'>
print(m.group('local'))
# aaa
print(m.group('SLD'))
# xxx
print(m.group('TLD'))
# com
print(m.group(0))
# aaa@xxx.com
print(m.group(3))
# com
print(m.group(0, 2, 'TLD'))
# ('aaa@xxx.com', 'xxx', 'com')
print(m.groups())
# ('aaa', 'xxx', 'com')
print(m.groupdict())
# {'local': 'aaa', 'SLD': 'xxx', 'TLD': 'com'}
print(type(m.groupdict()))
# <class 'dict'>
print(re.match(r'[a-z]+@[a-z]+\.[a-z]+', s))
# <re.Match object; span=(0, 11), match='aaa@xxx.com'>
print(bool(re.match(r'[a-z]+@[a-z]+\.[a-z]+', s)))
# True
print(re.match('[0-9]+', s))
# None
print(bool(re.match('[0-9]+', s)))
# False
if re.match(r'[a-z]+@[a-z]+\.[a-z]+', s):
print('match')
else:
print('no match')
# match
if re.match('[0-9]+', s):
print('match')
else:
print('no match')
# no match
m = re.match('[0-9]*', s)
print(m)
# <re.Match object; span=(0, 0), match=''>
print(m.group() == '')
# True
print(bool(m))
# True
if re.match('[0-9]*', s):
print('match')
else:
print('no match')
# match