pjs/webtools/lxr/source

#!/usr/bonsaitools/bin/perl
# $Id: source,v 1.1 1998-06-11 23:56:17 jwz Exp $

# source --	Present sourcecode as html, complete with references
#
#	Arne Georg Gleditsch <argggh@ifi.uio.no>
#	Per Kristian Gjermshus <pergj@ifi.uio.no>
#
#
# This program 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; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

######################################################################

use lib 'lib/';
use SimpleParse;
use LXR::Common;
use LXR::Config;


sub fdescexpand {

    $desc= "";
#    if (open(FILE, $Path->{'real'}."/".$filename)) {
#	while(<FILE>){
#	    if(/$filename\s*--*\s*/i){
#	        ($null, $desc) = split(/ $filename\s*--*\s*/i);
#		if ($desc) {last};
#	    }elsif (/$filename\s*:\s*/i){
#	        ($null, $desc) = split(/ $filename\s*:\s*/i);
#		if ($desc) {last};
#	    }elsif (/$filename\s*/i){
#	        ($null, $desc) = split(/ $filename\s*/i);
#		if ($desc) {last};
#	    }
#	}
#	close(FILE);
#    }
    return($desc);
}

sub descexpand {

    $desc= "";
    if (open(DESC, $Path->{'real'}."/doc/".$filename.".short")) {
	$desc=<DESC>;   
	close(DESC);
    }
    return($desc);
}


sub diricon {
    if ($filename eq '..') {
	return(&fileref("<img src=\"/icons/back.gif\"".
			" border=0 alt=\"Back\">", 
			$parentdir));
    } else {
	return(&fileref("<img src=\"/icons/folder.gif\"".
			" border=0 alt=\"Folder\">",
			$Path->{'virt'}.$filename));
    }
}

sub dirname {
    if ($filename eq '..') {
	return(&fileref("Parent directory", $parentdir));
    } else {
	return("<a href=\"".$Conf->{'virtroot'}."/source".$Path->{'virt'}.$filename.
        "\" onMouseOver=\"return js_dir_menu(\'".
        $Path->{'virt'}.$filename."\', event)\">".$filename."</a>"
        );
    }
}


sub fileicon {
    if ($filename =~ /^.*\.[ch]$/) {
	return(&fileref("<img src=\"/icons/c.gif\"".
			" border=0 alt=\"C file\">",
			$Path->{'virt'}.$filename));
    } elsif ($filename =~ /^.*\.(cpp|cc)$/) {
	# TODO: Find a nice icon for c++ files (KDE?)
	return(&fileref("<img src=\"/icons/c.gif\"".
			" border=0 alt=\"C++ file\">",
			$Path->{'virt'}.$filename));
    } else {		
	return(&fileref("<img src=\"/icons/text.gif\"".
			" border=0 alt=\"File\">",
			$Path->{'virt'}.$filename));
    }
}


sub filename {
    return("<a href=\"".$Conf->{'virtroot'}."/source".$Path->{'virt'}.$filename.
        "\" onMouseOver=\"return js_file_menu(\'". $Path->{'virt'}.
        $filename."\', event)\">".$filename."</a>"
        );

}


sub filesize {
    my $templ = shift;
    my $s = (-s $Path->{'real'}.$filename);

    return(&expandtemplate($templ,
			   ('bytes',	sub {return($s)}),
			   ('kbytes',	sub {return(($s>>10)."k")}),
#			   ('kbytes',	sub {return($s/1024)}),
			   ('mbytes',	sub {return($s/1048576)})
			   ));
}


sub modtime {
    my @t = gmtime((stat($Path->{'real'}.$filename))[9]);
    $t[5] += 1900;
    $t[4]++;
#   return(sprintf("%04d-%02d-%02d %02d:%02d:%02d", reverse(splice(@t, 0, 6))));
    return(sprintf("%04d-%02d-%02d %02d:%02d", reverse(splice(@t, 0, 6))));
}

sub bgcolor {
    if (!($line % 3)) {
	$color = ($color eq "#EEEEEE")? "#FFFFFF": "#EEEEEE";
    }
    return($color);
}


sub direxpand {
    my $templ = shift;
    my $direx = '';
    local $line = 0;
    local $filename;
    local $filestat;
    local $color="#FFFFFF";

    foreach $filename (@dirs) {
	$line++;
	$direx .= &expandtemplate($templ,
				  ('iconlink',		\&diricon),
				  ('namelink',		\&dirname),
				  ('filesize',		sub {return('')}),
				  ('modtime',		\&modtime),
				  ('bgcolor',		\&bgcolor),
				  ('description',	\&descexpand));
    }
	
    foreach $filename (@files) {
	$line++;
	next if $filename =~ /^.*\.[oa]$|^core$|^00-INDEX$/;
	$direx .= &expandtemplate($templ,
				  ('iconlink',		\&fileicon),
				  ('namelink',		\&filename),
				  ('filesize',		\&filesize),
				  ('modtime',		\&modtime),
				  ('bgcolor',		\&bgcolor),
				  ('description',	\&fdescexpand));
    }

    return($direx);
}

sub printdir {
    my $template;
    my $index;
    local %index;
    local @dirs;
    local @files;
    local $parentdir;


    $template = "<ul>\n\$files{\n<li>\$iconlink \$namelink\n}</ul>\n";
    if ($Conf->htmldir) {
	unless (open(TEMPL, $Conf->htmldir)) {
	    &warning("Template ".$Conf->htmldir." does not exist.");
	} else {
	    $save = $/; undef($/);
	    $template = <TEMPL>;
	    $/ = $save;
	    close(TEMPL);
	}
    }
	
    if (opendir(DIR, $Path->{'real'})) {
	foreach $f (sort(grep/^[^\.]/,readdir(DIR))) {
	    if (-d $Path->{'real'}.$f) {
		push(@dirs,"$f/");
	    } else {
		push(@files,$f);
	    }
	}
	closedir(DIR);
    } else {
	print("<p align=center>\n<i>This directory does not exist.</i>\n");
	if ($Path->{'real'} =~ m#(.+[^/])[/]*$#) {
	    if (-e $1) {
		&warning("Unable to open ".$Path->{'real'});
	    }
	}
	return;
    }
    
    if (-f $Path->{'real'}."00-INDEX") {
	open(INDEX,$Path->{'real'}."00-INDEX") ||
	    &warning("Existing \"00-INDEX\" could not be opened.");
	$save = $/; undef($/);
	$index = <INDEX>;
	$/ = $save;
	
	%index = $index =~ /\n(\S*)\s*\n\t-\s*([^\n]*)/gs;
    }

    if ($Path->{'virt'} =~ m#^(.*/)[^/]*/$#) {
	$parentdir = $1;
	unshift(@dirs, '..');
    }

    if (open(DESC, $Path->{'real'}."/doc/index.html")) {
	print(<DESC>);
	print("\n<p>\n");
	close(DESC);
    }

    print(&expandtemplate($template,
			  ('files',	\&direxpand)));
}


sub printfile {

    unless ($Path->{'file'}) {
	&printdir;

	if (open(SRCFILE, $Path->{'real'}.README)) {
	    print("<hr><pre>");
	    &markupfile(\*SRCFILE, $Path->{'virt'}, 'README', 
			sub { print shift });
	    print("</pre>");
	    close(SRCFILE);
	}

    } else {
	if (open(SRCFILE, $Path->{'realf'})) {
	    if (($Path->{'file'} =~ /\.(html)$/)) {
		print <SRCFILE>;
		}
	    else {
    		if(open(DESC, $Path->{'real'}."doc/".$Path->{'file'}.".long")){
		    print(<DESC>);   
		    close(DESC);
    		    }
		print("<pre>");
		&markupfile(\*SRCFILE, $Path->{'virt'}, $Path->{'file'},
                            sub { print shift });
		print("</pre>");
		}
	    close(SRCFILE);
	} else {
	    print("<p align=center>\n<i>This file does not exist.</i>\n");
	    
	    if (-f $Path->{'real'}.$Path->{'file'}) {
		&warning("Unable to open ".$Path->{'realf'});
	    }
	}
    }
}

($Conf, $HTTP, $Path) = &init;

#if the file is html then don't print a header because the file
#has its own -dme
if (!($Path->{'file'} =~ /\.(html)$/)) {
    &makeheader('source');
    }
&printfile;
if (!($Path->{'file'} =~ /\.(html)$/)) {
    &makefooter('source');
    }
#$len = length($file);
#print ("length is: ", $len) ;