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Re: Matching
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From:
Tor Hildrum
Date:
February 27, 2002 04:31
Subject:
Re: Matching
Message ID:
B8A29034.55CD%torhildr@mac.com
>> On 27/2/02 13:11, "Jon Molin" <Jon.Molin@resfeber.se> wrote:
>>
>>
>> Hi,
>>
>> I was wondering if any one can help me. Is there any command in perl that
>> will let me match a line only if the next line
>> fufills a certain condition, without doing a double loop over the file?
>> My data is like this
>>
>> Variable1 number number number
>> Variable1 number number number --- want this line
>> Variable2 number number number --- and this
>> Variable2 number number number
>
> I'm pretty new to perl myself, but:
>
> #!/usr/bin/perl -w
> use strict;
> use warnings;
>
> my $variable1 = "line1 \n line2";
> print "$1\n" if $variable1 =~ /(.+)["\n"]\sline.+/;
The regex could probably be simplified:
<do something> if $variable1 =~ /[\n]\s<MATCH>/;
Where <MATCH> is what you would want to be matched for in the second line of
$variable1.
--
T.
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