-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathregex.py
More file actions
185 lines (145 loc) · 4.09 KB
/
Copy pathregex.py
File metadata and controls
185 lines (145 loc) · 4.09 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
#!/bin/env python3
# -*- coding:utf-8 -*-
import re
# match() 匹配、切分字符串
s = r'ABC\\-001'
x = re.match(r'^\d{3}-\d{3,8}$', '010-123456') # match对象
print(x)
test = '用户输入的字符串'
if re.match(r'正则表达式', test):
print('ok')
else:
print('failed')
bt='bat|bet|bit'
m=re.match(bt,'bat') # m is regex object
if m is not None: m.group()
print('a b c'.split(' ')) # 切分字符串,法切分空格
print(re.split(r'\s+', 'a b c')) # re灵活
print(re.split(r'\s+', 'a b c'))
print(re.split(r'[\s\,]+', 'a,b, c d'))
print(re.split(r'[\s\,\;]+', 'a;b;; c d'))
# search() 搜索匹配
m=re.search('foo','eatfood')
if m is not None: m.group()
# group() 提取子字符串
# 识别合法电话号码
m = re.match(r'^(\d{3})-(\d{3,8})$', '010-12345')
print(m,
m.group(0),
m.group(1),
m.group(2),
m.group()
)
m=re.match('(a(b))','ab')
print(m,
m.group(0),
m.group(1),
m.group(2),
m.group()
)
# 识别合法的时间
t = '19:05:30'
m = re.match(
r'^(0[0-9]|1[0-9]|2[0-3]|[0-9]):(0[0-9]|1[0-9]|2[0-9]|3[0-9]|4[0-9]|5[0-9]|[0-9]):(0[0-9]|1[0-9]|2[0-9]|3[0-9]|4[0-9]|5[0-9]|[0-9])$',
t)
print(m.groups())
# findall()
m=re.findall('cat','carry the barcardi to the car')
# finditer() 相比findall 节省内存
s='This and that.'
m=re.finditer(r'(th\w) and (th\w+)',s,re.I)
m=[g.groups() for g in re.finditer(r'(th\w+) and (th\w+)',s,re.I)]
# 单分组多重匹配
it=re.finditer(r'(th\w+)',s,re.I)
g=it.next()
print(g.groups())
# 解析器
DATA=(
'Mountain View,CA 94040',
'Sunnyvale,CA',
'Los Altos,94023',
'Cupertino 95014',
'Palo Alto CA'
)
for datum in DATA:
print(re.split(', |(?= (?:\d{5} |[A-Z]{2}))',datum))
# 贪婪匹配
x = re.match(r'^(\d+)(0*)$', '102300').groups()
# 加入？非贪婪匹配
y = re.match(r'^(\d+?)(0*)$', '102300').groups()
# compile()
re_telephone = re.compile(r'^(\d{3})-(\d{3,8})$') # 编译
re_telephone.match('010-12345').groups() # 调用正则
re_telephone.match('010-8086').groups() # 调用正则
# match eamil addr
def is_valid_email(addr):
if re.match(r'[a-zA-z_.]*@[a-aA-Z.]*', addr):
return True
else:
return False
assert not is_valid_email('bob#example.com')
print('ok')
# match email head
def name_of_email(addr):
r = re.compile(r'^(<?)([\w\s]*)(>?)([\w\s]*)@([\w.]*)$')
if not r.match(addr):
return None
else:
m = r.match(addr)
return m.group(2)
print('ok')
# kinds of matching
'''
^(bat|bit|but|hat|hit|hut) [bh][aiu]
\w+\w+
\w+,\s\w+
[A-Za-z-]+[\w_]+
(\w+)*\w*
w{3}\.\w+\.(edu|com|net)
\d+
\d+[1L]
\d+(\.\d*)?
[-]?\d+(\.\d*)?[+-][-]?\d+(\.\d*)?[Jj]
(\w+\.)?\w+@\w+\.\w+
(http://)?(w{3}\.)?\w+\.com
(\w+)
1[012]
(\d{4}-\d{6}-\d{5})|(\d{4}-\d{4}-\d{4}-\d{4})
'''
# gendata.py
def check(card):
contexts=re.search(r'\d{4}-(\d+)-(\d+)-(\d+)(?:-(\d{4})',card).groups()
if not contexts[2] and len(contexts[0])==6 and len(contexts[1])==5:
return True
elif contexts[2] and len(contexts[0])==4 and len(contexts[1])==4 and len(contexts[2])==4:
return True
else:
return False
# redata.tex
def Count(filename):
weeks={
}
with open(filename) as f:
contexts=f.read()
result=re.findall(r'(\w{3})\s\w{3}',contexts)
for i in result:
weeks[i]=weeks.get(i,0)+1
return wekks
# email domain replace
def Replace(filename,mail):
with open(filename) as f:
contexts=f.read()
replace=re.sub(r'\w*@\w*\.\w{3}',mail,contexts)
print(replace)
# print time
def print_time(filename):
with open(filename) as f:
contexts=f.read()
time=re.findall(r'\s(\s{3})\s(\d{2}).*(\d{4})',contexts)
for t in time:
print(','.join(t))