RE: Extract the desired value from a regex


Refer this code

use warnings;
use strict;
my $string = "M W 8:00AM - 10:20";
$string =~ /(^M)\s(W)\s(\d{1,2}:\d{2}[A|P]M\s-\s\d{2}:\d{2})/;
#print "$1\n$2\n$3"
my $time = $3;
my $days = join(",",$1,$2);
print "time = $3\n";
print "days = $days"


Output:
time = 8:00AM - 10:20
days = M,W

-----Original Message-----
From: Manasi Bopardikar [mailto:manasi_bopardikar@xxxxxxxxxxxxxxxx]
Sent: Friday, July 18, 2008 10:06 AM
To: 'sanket vaidya'
Subject: RE: Extract the desired value from a regex

String is
M W 8:00AM - 10:20
I want to put M,W in days array
8:00AM - 10:20 in the time array

Thanks
-----Original Message-----
From: sanket vaidya [mailto:sanket.vaidya@xxxxxxxxx]
Sent: Friday, July 18, 2008 9:58 AM
To: 'Manasi Bopardikar'
Cc: beginners@xxxxxxxx
Subject: RE: Extract the desired value from a regex

You want to capture character "?" means zero or one time repetition. To
disable the effect of such characters use \Q & to enable the effect use \E.

So try $array[3]=~/[M|T|W|TR|F]\s[M|T|W|TR|F]\s(.*\Q?\E)/;

If this doesn't work send the entire string from which you want to capture &
what to capture?

Thanks & Regards,
Sanket Vaidya
Patni Computer Systems Limited


-----Original Message-----
From: Manasi Bopardikar [mailto:manasi_bopardikar@xxxxxxxxxxxxxxxx]
Sent: Friday, July 18, 2008 9:52 AM
To: 'sanket vaidya'
Subject: RE: Extract the desired value from a regex

Can you please explain it a little more/

-----Original Message-----
From: sanket vaidya [mailto:sanket.vaidya@xxxxxxxxx]
Sent: Friday, July 18, 2008 9:47 AM
To: 'Manasi Bopardikar'
Cc: beginners@xxxxxxxx
Subject: RE: Extract the desired value from a regex

$1 does not work because you are using metacharacter "?" in regex. Use \Q &
\E to capture.

Thanks & Regards,
Sanket Vaidya
Patni Computer Systems Limited
A 78/9, GIDC, Electronics Estate
Sector - 25, Gandhinagar - 382 016
Gujarat, India
Tel: 91-79-23240905 Ext: 243


-----Original Message-----
From: Manasi Bopardikar [mailto:manasi_bopardikar@xxxxxxxxxxxxxxxx]
Sent: Friday, July 18, 2008 9:22 AM
To: beginners@xxxxxxxx
Subject: Extract the desired value from a regex

Hi,

I have a regex --- $array[3]=~/[M|T|W|TR|F]\s[M|T|W|TR|F]\s(.*?)/;



I want to extract the value of expression highlighted in red.Is there any
way to do it.

-I tried $1 does not work.Why doesn't it work I do not understand.

Is there any other way to do it.





Thanks and Regards,

Manasi Bopardikar|s/w Engineer|Persistent SystemsLtd

(+91)(020)(30234497)|9767218759

manasi_bopardikar@xxxxxxxxxxxxxxxx




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