Article wrapper
1#!/usr/bin/perl -- # --*-Perl-*--
use Getopt::Std;
5
$usage = "Usage: $0 [-q] [-u|-p|-m] file [ file ... ]\n";
die $usage if ! getopts('qupm');
die $usage if ($opt_p + $opt_u + $opt_m) != 1;
10
$file = shift @ARGV || die $usage;
$opt = '-u' if $opt_u;
$opt = '-p' if $opt_p;
15$opt = '-m' if $opt_m;
This paragraph interrupts the listing. The line numbering continues in the following listing.
16while ($file) {
print "Converting $file to $opt linebreaks.\n" if !$opt_q;
open (F, "$file");
binmode F;
20read (F, $_, -s $file);
close (F);
s/\r\n/\n/sg;
s/\r/\n/sg;
25
if ($opt eq '-p') {
s/\n/\r\n/sg;
} elsif ($opt eq '-m') {
s/\n/\r/sg;
30}
open (F, ">$file");
binmode F;
print F $_;
35close (F);
$file = shift @ARGV;
}