Re: Generic multiline grepping

[vinoth.ree]

If you can use Perl version 5.10, then there is a really easy way to do that. Just use the new smart match (~~) operator.

use warnings;
use strict;
use 5.10.1;

my @matches = (
  qr/pattern1/,
  qr/pattern2/,
  
);

if( $_ ~~ @matches ){
  ...
}

Not tested

Update:

Tested Now,Make changes in your pattern as needed.

use strict;
use warnings;
use 5.10.1;

my $logpattern1='rrcConnection';
my $logpattern2='measurementReport';
my $logpattern3='Event';

open(LOGFILE,"./log.txt") or die "$!";
my @file=<LOGFILE>;
my $f=join("",@file);


my @matches = (
  qr/.*$logpattern1/,
  qr/.*$logpattern2/,
  qr/.*$logpattern3/,
);

if( $f ~~ @matches ){
 print("Found log marker : $logpattern1 $logpattern2 $logpattern3 in T
+M500log\n");

}
else{
print("Failed to find log marker: $logpattern2 $logpattern3 in $logpat
+tern1 in TM500log\n");
}


close(LOGFILE);

[vasuperl]

Hi Vineeth, Just now i tested. But here, initially pattern1 should be present and under pattern1 pattern2 should be present and pattern3 should be present under pattern3. whatever the code i had posted previously, its working. but the problem is, that code will work only for 3 nested pattern matching. If you had any idea please suggest me how i can do that nested pattern matching for more than 3 patterns which should be in a generic way. Thanks in advance

[vasuperl]

Thank you vinoth.