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
M
c M
wM
a
c a
wa
r
c r
wr
usstatear
varMar
wordMar
monthMar
_
c _
ws_
2
c 2
d2
9
c 9
d9
_
c _
ws_
1
c 1
d1
9
c 9
d9
:
c :
2
c 2
d2
1
c 1
d1
:
c :
4
c 4
d4
5
c 5
d5
mmddyy
time19:21:45
_
c _
ws_
g
c g
wg
a
c a
wa
n
c n
wn
d
c d
wd
a
c a
wa
l
c l
wl
f
c f
wf
vargandalf
wordgandalf
_
c _
ws_
g
c g
wg
e
c e
we
n
c n
wn
u
c u
wu
n
c n
wn
i
c i
wi
x
c x
wx
vargenunix
word
:
c :
_
c _
ws_
[
c [
I
c I
wI
D
c D
wD
varID
wordID
usstateID
_
c _
ws_
9
c 9
d9
3
c 3
d3
6
c 6
d6
7
c 7
d7
6
c 6
d6
9
c 9
d9
_
c _
ws_
k
c k
wk
e
c e
we
r
c r
wr
n
c n
wn
varkern
wordkern
.
c .
i
c i
wi
n
c n
wn
f
c f
wf
o
c o
wo
varinfo
wordinfo
fqdnkern.info
]
c ]
sbraces[ID_936769_kern.info]
_
c _
ws_
d
c d
wd
t
c t
wt
r
c r
wr
a
c a
wa
c
c c
wc
e
c e
we
worddtrace
0
c 0
d0
vardtrace0
alphanumdtrace0
_
c _
ws_
i
c i
wi
s
c s
ws
varis
wordis
_
c _
ws_
/
c /
p
c p
wp
s
c s
ws
e
c e
we
u
c u
wu
d
c d
wd
o
c o
wo
varpseudo
wordpseudo
/
c /
d
c d
wd
t
c t
wt
r
c r
wr
a
c a
wa
c
c c
wc
e
c e
we
vardtrace
worddtrace
unixpath/pseudo/dtrace
@
c @
0
c 0
d0
< Source String
What to click?  extract any integer in this position
extract this integer (2006) in this position
 
3Perl 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/perl

# URL that generated this code:
# http://www.txt2re.com/index.php3?s=Mar%2029%2019:21:45%20gandalf%20genunix:%20%5BID%20936769%20kern.info%5D%20dtrace0%20is%20/pseudo/[email protected]&5&7

$txt='Mar 29 19:21:45 gandalf genunix: [ID 936769 kern.info] dtrace0 is /pseudo/[email protected]';

$re1='.*?';	# Non-greedy match on filler
$re2='((?:[0]?[1-9]|[1][012])[-:\\/.](?:(?:[0-2]?\\d{1})|(?:[3][01]{1}))[-:\\/.](?:(?:\\d{1}\\d{1})))(?![\\d])';	# MMDDYY 1
$re3='.*?';	# Non-greedy match on filler
$re4='(?:[a-z][a-z]+)';	# Uninteresting: word
$re5='.*?';	# Non-greedy match on filler
$re6='((?:[a-z][a-z]+))';	# Word 1

$re=$re1.$re2.$re3.$re4.$re5.$re6;
if ($txt =~ m/$re/is)
{
    $mmddyy1=$1;
    $word1=$2;
    print "($mmddyy1) ($word1) \n";
}

#-----
# Paste the code into a new perl file. Then in Unix:
# $ perl x.pl 
#-----
 
 
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