bind-9.11.3/util/spacewhack.pl

	spacewhack.pl revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
#!/usr/local/bin/perl -w
#
# Copyright (C) 2000, 2001, 2004, 2007, 2012, 2016  Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# $Id$

$0 =~ s%.*/%%;

if (@ARGV != 0) {
    warn "Usage: $0 < list-of-files\n";
    warn "The util/copyrights file is normally used for list-of-files.\n";
    exit(1);
}

$total = 0;

printf "Lines Trimmed:\n";

while (defined($line = <STDIN>)) {
    ($file) = split(/\s+/, $line, 2);

        # These are binary and must be ignored.
        next if $file =~ m%/random.data|\.gif$%;
        next if -B $file;

        print "$file\n";

    unless (open(FILEIN, "< $file")) {
        warn "$0: open < $file: $!, skipping\n";
        next;
    }

    undef $/;       # Slurp whole file.
    $_ = <FILEIN>;
    $/ = "\n";      # Back to line-at-a-time for <FILES>.

        close(FILEIN);

    $count = s/[ \t]+$//mg;

    next unless $count > 0;

    unless (open(FILEOUT, "> $file")) {
        warn "$0: open > $file: $!, skipping\n";
        next;
    }

    print FILEOUT or die "$0: printing to $file: $!, exiting\n";
        close FILEOUT or die "$0: closing $file: $!, exiting\n";

    printf("%6d lines trimmed in $file\n", $count) if $count > 0;

    $total += $count;
}

printf "%6d TOTAL\n", $total;

exit(0);