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########################################################################
#
# c-comment 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; see the file COPYING. If not, write to
# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
#
########################################################################
#
# Project : File Preprocessor - c-comment module
# Filename : $RCSfile: c-comment.pm,v $
# Author : $Author: darren $
# Maintainer : Darren Miller: darren@cabaret.demon.co.uk
# File version : $Revision: 1.7 $
# Last changed : $Date: 2003/07/02 22:23:15 $
# Description : This module removes all C and C++ style comments from
# a file.
# Licence : GNU copyleft
#
########################################################################
# THIS IS A FILEPP MODULE, YOU NEED FILEPP TO USE IT!!!
# usage: filepp -m c-comment.pm <files>
########################################################################
package CComment;
use strict;
# version number of module
my $VERSION = '1.2.0';
require "comment.pm";
# remove all comments from string
sub RemoveComments
{
my $string = shift;
# remove all C++ style comments
$string = Comment::RemoveComments("//", $string);
# remove all C comments
my $newstring = Comment::RemoveComments("/\\*", $string);
while($string =~ /\S/ && $newstring ne $string) {
# remove newline that may have been added by RemoveComments
if($newstring =~ /\n$/) { chomp($newstring); }
# start of comment has been removed - find closing */
# get rest of string and check for end of comment in this line
$string = Comment::GetLineEnd();
if($string =~ /\*\//) {
# get rest of line
my $line = $'; # one more quote for emacs '
$string = $newstring.$line;
}
# multi-line comment
else {
# find line with end of comment
$string = Filepp::GetNextLine();
my $newlines = 1;
while($string && $string !~ /\*\//) {
$string = Filepp::GetNextLine();
$newlines++;
}
if($string) {
# get rest of line following end of comment
$string = $newstring.substr($string, index($string, "*/")+2);
}
else {
$string = $newstring;
}
# make number of lines in output equal to number of lines in input
while($newlines-- > 0) {
if($newstring =~ /\S/) { $string = $string."\n"; }
else { $string = "\n".$string; }
}
}
# check for more comments on this line
$newstring = Comment::RemoveComments("/\\*", $string);
}
return $string;
}
if(Filepp::Ifdef("REMOVE_C_COMMENTS_FIRST")) {
Filepp::Undef("REMOVE_C_COMMENTS_FIRST");
Filepp::AddProcessor("CComment::RemoveComments", 1);
}
else {
Filepp::AddProcessor("CComment::RemoveComments");
}
return 1;
########################################################################
# End of file
########################################################################
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