txt 2 re
knowing is obsolete :: regular expression generator (perl php python java javascript coldfusion c c++ ruby vb vbscript j# c# c++.net vb.net)
 
 
 
Enter the string that you want to use a regular expression on:
1
   
 
Select the elements that you want to extract to run regular expression generator:
2
1
c 1
d1
4
c 4
d4
day
int14
:
c :
M
c M
wM
a
c a
wa
r
c r
wr
usstatear
var
wordMar
monthMar
:
c :
2
c 2
d2
0
c 0
d0
1
c 1
d1
9
c 9
d9
day19
year2019
int2019
ddmmmyyyy14:Mar:2019
_
c _
ws_
"
c "
T
c T
wT
h
c h
wh
i
c i
wi
s
c s
ws
varThis
wordThis
_
c _
ws_
i
c i
wi
s
c s
ws
varis
wordis
_
c _
ws_
a
c a
wa
n
c n
wn
varan
wordan
_
c _
ws_
E
c E
wE
x
c x
wx
a
c a
wa
m
c m
wm
p
c p
wp
l
c l
wl
e
c e
we
varExample
wordExample
!
c !
"
c "
string"This_is_an_Example!"
< Source String
What to click?  extract any integer in this position
extract this integer (2006) in this position
 
3Python regular expression program that extracts the selected elements from the entered string:
Perl PHP [Python] Java Javascript ColdFusion C C++ Ruby VB VBScript J#.net C#.net C++.net VB.net 
 
#!/usr/bin/python
# URL that generated this code:
# http://txt2re.com/index-python.php3?s=14:Mar:2019%20%22This%20is%20an%20Example!%22&13&11

import re

txt='14:Mar:2019 "This is an Example!"'

re1='((?:(?:[0-2]?\\d{1})|(?:[3][01]{1})))(?![\\d])'	# Day 1
re2='.*?'	# Non-greedy match on filler
re3='((?:[a-z][a-z0-9_]*))'	# Variable Name 1

rg = re.compile(re1+re2+re3,re.IGNORECASE|re.DOTALL)
m = rg.search(txt)
if m:
    day1=m.group(1)
    var1=m.group(2)
    print "("+day1+")"+"("+var1+")"+"\n"

#-----
# Paste the code into a new python file. Then in Unix:'
# $ python x.py 
#-----
 
 
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