newlib-cygwin/winsup/doc/bodysnatcher.pl

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#!/usr/bin/perl -w
# Copyright © 2013 by Red Hat, Inc.
#
# This file is part of Cygwin.
#
# This software is a copyrighted work licensed under the terms of the
# Cygwin license. Please consult the file "CYGWIN_LICENSE" for
# details.
use strict;
if (@ARGV) {
my $infile = $ARGV[0];
my $outfile = $infile;
$outfile =~ s/\.html$/.body/;
if ($infile ne $outfile) {
open my $input, '<', $infile or die "Failed to open $infile: $!\n";
my $html = do { local $/; <$input> }; # slurp!
my ($body) = $html =~ m|<body[^>]*>(.*)</body>|is;
if ($body) {
open my $output, '>', $outfile
or die "Failed to write $outfile: $!\n";
print $output $body;
}
else {
print STDERR "Could not find <body> element in $infile!\n\n";
exit 3;
}
}
else {
print STDERR "Input file name must end in .html!\n\n";
exit 2;
}
}
else {
print STDERR <<USAGE;
usage: $0 <input.html>
Transforms input.html to input.body by extracting whatever is
between <body> and </body> in input.html.
USAGE
exit 1;
}