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#!/usr/bin/perl
# Copyright 2012-2020, Alexander Shibakov
# This file is part of SPLinT
#
# SPLinT is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SPLinT is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SPLinT. If not, see <http://www.gnu.org/licenses/>.
# a simple script to remove comments and #line directives left by CTANGLE
# this allows one to build Makefiles and linker scripts from inside CWEB
# by making a few simple changes to the macros (to facilitate typeseting)
# and using CWEB's @= ... @> facility.
use Getopt::Long;
use Pod::Usage;
my $man = 0;
my $help = 0;
#Getopt::Long::Configure ("bundling"); # to allow -abc to set a, b, and c
GetOptions ("help|?" => \$help,
man => \$man,
) or pod2usage(2);
pod2usage(-exitval => 0, -verbose => 1) if $help;
pod2usage(-exitval => 0, -verbose => 2) if $man;
open FILE, "$ARGV[0]" or die "Cannot open input file $ARGV[0]\n";
open FILEOUT, ">$ARGV[1]" or die "Cannot open output file $ARGV[1]\n";
while (<FILE>) {
$inline = $_;
s/^(\#line.*)\n$//g;
if ( $ARGV[2] != 3 ) {
s/\/\*([^\/]|\/[^\*])*\*\///g;
}
printf FILEOUT "%s", "$_";
# if ( m/^.*\S.*\n$/ ) {
# printf FILEOUT "%s", "$_";
# }
}
__END__
=head1 UNLINE
unline.pl - Remove B<C> comments from a file
=head1 SYNOPSIS
unline.pl [options] input_file output_file
Options:
--help|-h|-? brief help message
--man|-m full documentation
=head1 OPTIONS
=over 8
=item B<--help>
Print a brief help message and exit.
=item B<--man>
Print the manual page and exit.
=back
=head1 DESCRIPTION
B<unline.pl> will read the given <input_file>, remove the B<C> comments
and output the resulting file in <output_file>
=cut
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