use strict;
use warnings;

my $text =   " R12345678-A1234567 INCL.EUR 3,31 MWST JULI MONATL. GEB 
+HR T-DSL FLAT 01.07.04-31.07.04     12,34";

while ( $text =~ / (.{0,27}(?!\S))/g ) {
    my $out = $1 . ( '_' x ( 27 - length( $1 ) ) );
    print "$out\n";
}

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Underscores added to output for clarity.

Update: Just for the record, (?!\S) is a negative lookahead assertion. It ensures that lines are always split on the last possible space character up to the 27 character line limit. In other words, each line must contain a leading space, followed by up to 27 characters, and the next character can't be a non-space. That way the next line will always synch up with the requisite 'space' delimiter.


Dave

In reply to Re^2: splitting text into lines -- code -> regex by davido
in thread splitting text into lines -- code -> regex by theorbtwo

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