in reply to Re^2: extract text from multi-line context
in thread extract text from multi-line context

has following error, please help!!

*cough* thats what heppens when you edit in textbox late at night :)

for the first part simply use what you had before  \$dumpoff \$end instead of "\Q\E"

For the other part, $1 is not $i :)

And the other part, you must quote your strings,

add use diagnostics; to get more verbose explanations

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Re^4: extract text from multi-line context
by herman4016 (Acolyte) on Aug 16, 2014 at 09:08 UTC

    when I run the following code, Although no error , but nothing happen too, so sad!! 

     
#!/usr/bin/perl
use strict;
use diagnostics;
use 5.010;
use Path::Tiny qw/ path /;

my $raw   = path("sample.vcd")->slurp_raw;
my $re = qr{ 
\$end
\$dumpoff \$end
[\r\n ]+
(\#[\d]+)
[\r\n ]+
\$dumpon \$end
[\r\n ]+
(.*?)
\#[\d]+
}sx;

while( $raw =~ m/$re/g ){
    my( $id, $tidy ) = ( $1, $2 );
    say $1; 
    say $2; 
        }

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      ... so sad!! 

      #!/usr/bin/perl --
use strict;
use warnings;
use Data::Dump qw/ dd /;
use Path::Tiny qw/ path /;

my $raw   = path("sample.vcd")->slurp_raw; 
my $one   = quotemeta '$end';
my $two   = quotemeta '$dumpoff $end';
my $three = quotemeta '$dumpon $end';
my $nl    = '[\r\n ]+';
my $re = qr{ 
$one                  $nl
$two                  $nl
(\#[\d]+)             $nl    # $1 id
$three                $nl
(.*?)                        # $2 tidy
\#[\d]+
}sx;

dd( $re );

while( $raw =~ m/$re/g ){
    my( $id, $tidy ) = ( $1, $2 );
    dd( $id, $tidy ) ;
}   
__END__
$ perl vcd-parse-1097529.pl
qr/
\$end                  [\r\n ]+
\$dumpoff\ \$end                  [\r\n ]+
(\#[\d]+)             [\r\n ]+    # $1 id
\$dumpon\ \$end                [\r\n ]+
(.*?)                        # $2 tidy
\#[\d]+
/sx
(
  "#3537871350",
  "0&\r\n0%\r\n0\$\r\nb01 +\r\n0!\r\n0(\r\n0#\r\n1'\r\n0\"\r\nz)\r\nb1
+11 *\r\n",
)

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