RE: Regular expressionHi Javeed.
This code:
foreach (@attt) {
/=/ && ( ($out) = (split (/=/))[1] );
}
stores the string "HELLO" in the variable $out. Then, if you issue print "$out" you
would get a "HELLO".
But when I read your e-mail again I realized that you want to store the entire last
line. So yoy should use this code instead:
foreach (@attt) {
/=/ && ( $out = $_ );
}
The foreach (@attt) starts a loop storing every line of @attt in a default variable
called $_
Then, if the regul. exp "/=/" matches against the default variable $_, the &&
statement is executed, storing the variable $_ in the variable $out.
For clarifying purposes, you could write the same code as:
foreach $line (@att) {
if ($line =~ /=/){
$out = $line ;
print "$out";
}
}
And if you want to get rid of the blank spaces in the last line, add try this:
foreach $line (@attt) {
if ($line =~ /=/){
$out = $line ;
$out =~ s/\s*//;
print "$out";
}
}
I learnt all this from the O'reilly book "Learning Perl second edition".
Tied hugs and warmfull kisses,
Bruno Negr�o.
----- Original Message -----
From: Javeed SAR
To: Bruno Negrao - Perl List
Sent: Monday, October 07, 2002 1:21 AM
Subject: RE: Regular expression
foreach (@attt) {
/=/ && ( ($out) = (split (/=/))[1] );
}
Can u explain this statement to me?
Which is the variable i should use for printing the output?
Regards
-----Original Message-----
From: Bruno Negrao - Perl List [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 04, 2002 6:54 PM
To: [EMAIL PROTECTED]
Subject: Re: Regular expression
> Hi Javeed ,
>
> the last element of the array is $attt[$#attt]. If you have one line per
> element, that should do it.
Right. This is the easiest way. But, just to answer him, what he could do
using regular expression could be something like:
foreach (@attt) {
/=/ && ( ($out) = (split (/=/))[1] );
}
Bruno.
>
> R
>
> At 14:24 04/10/2002 +0530, Javeed SAR wrote:
>
> >I have the following output in array @attt
> >I want the last line in a variable $out.
> >What should the regular expression be?
> >
> >
> >attribute type "SYNC_CHECK"
> > created 04-Oct-02.09:36:42 by javeed.clearuser@BLRK35ED
> > "for testing"
> > owner: HIS\javeed
> > group: HIS\clearuser
> > scope: this VOB (ordinary type)
> > value type: string
> > Attributes:
> > SYNC_CHECK = "HELLO"
> >
> >
> >Regards
> >j
>
>
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