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Re^3: chomp question

by suno (Acolyte)
on Aug 08, 2012 at 09:58 UTC ( #986198=note: print w/ replies, xml ) Need Help??


in reply to Re^2: chomp question
in thread chomp question

Here.. MVC,CLI,BNE are keywords... wherever CLI comes, i need to append the next line along with the current line..


Comment on Re^3: chomp question
Re^4: chomp question
by Jenda (Abbot) on Aug 08, 2012 at 10:57 UTC
    while (<>) { chomp if /^CLI\b/; print; } # or without all those default variables while (my $line = <$FILEHANDLE>) { chomp($line) if $line =~ /^CLI\b/; print $line; }

    Probably not exactly what you had in mind, right? In either case you either want to check whether the line starts with "CLI" and chomp() it if it does or remember the last line (or whether it started with CLI) and append the text you read instead of adding a new element into the array.

    my @lines; my $last_line_was_CLI = 0; while (<>) { chomp; if ($last_line_was_CLI) { $lines[-1] .= $_; $last_line_was_CLI = 0; } elsif (/^CLI\b/) { $last_line_was_CLI = 1; push @lines, $_; } else { push @lines, $_; } }

    Jenda
    Enoch was right!
    Enjoy the last years of Rome.

Re^4: chomp question
by ramlight (Friar) on Aug 08, 2012 at 13:59 UTC
    Perhaps this will do what you want to do?
    use strict; use warnings; while (my $line = <DATA>) { if ($line =~ /CLI/) { chomp $line; while (my $line2 = <DATA>) { next unless $line2 =~ /\S/; # ignore blank lines $line .= " $line2"; last; } } print $line; } __END__ MVC DOWO(8),WCPA CLI WCPA+2,C'.' BNE UPCC22
    which prints
    bash-3.2$ perl suno.pl MVC DOWO(8),WCPA CLI WCPA+2,C'.' BNE UPCC22 bash-3.2$

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