===================================================================
RCS file: /cvs/cvsweb/cvsweb.cgi,v
retrieving revision 3.16
retrieving revision 3.30
diff -u -p -r3.16 -r3.30
--- cvsweb/cvsweb.cgi	2000/09/03 17:33:22	3.16
+++ cvsweb/cvsweb.cgi	2000/09/30 20:10:01	3.30
@@ -9,6 +9,7 @@
 #             Ken Coar         <coar@Apache.Org>
 #             Dick Balaska     <dick@buckosoft.com>
 #             Akinori MUSHA    <knu@FreeBSD.org>
+#             Jens-Uwe Mager   <jum@helios.de>
 #
 # Based on:
 # * Bill Fenners cvsweb.cgi revision 1.28 available from:
@@ -41,8 +42,8 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
-# $zId: cvsweb.cgi,v 1.94 2000/08/24 06:41:22 hnordstrom Exp $
-# $Id: cvsweb.cgi,v 3.16 2000/09/03 17:33:22 knu Exp $
+# $zId: cvsweb.cgi,v 1.103 2000/09/20 17:02:29 jumager Exp $
+# $Id: cvsweb.cgi,v 3.30 2000/09/30 20:10:01 knu Exp $
 #
 ###
 
@@ -53,8 +54,8 @@ use vars qw (
     %CVSROOT %CVSROOTdescr %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
     %alltags @tabcolors %fileinfo %tags @branchnames %nameprinted
     %symrev %revsym @allrevisions %date %author @revdisplayorder
-    @revisions %state %difflines %log %branchpoint @revorder $prcgi
-    @prcategories $prcategories
+    @revisions %state %difflines %log %branchpoint @revorder
+    $prcgi @prcategories $prcategories $mancgi
     $checkoutMagic $doCheckout $scriptname $scriptwhere
     $where $pathinfo $Browser $nofilelinks $maycompress @stickyvars
     %funcline_regexp $is_mod_perl
@@ -63,8 +64,9 @@ use vars qw (
     $bylog $byfile $hr_default $logsort $cvstree $cvsroot
     $mimetype $defaultTextPlain $defaultViewable $allow_compress
     $GZIPBIN $backicon $diricon $fileicon $fullname $newname
-    $cvstreedefault $body_tag $logo $defaulttitle $address
-    $backcolor $long_intro $short_instruction $shortLogLen
+    $cvstreedefault $body_tag $body_tag_for_src
+    $logo $defaulttitle $address
+    $long_intro $short_instruction $shortLogLen
     $show_author $dirtable $tablepadding $columnHeaderColorDefault
     $columnHeaderColorSorted $hr_breakable $showfunc $hr_ignwhite
     $hr_ignkeysubst $diffcolorHeading $diffcolorEmpty $diffcolorRemove
@@ -76,19 +78,21 @@ use vars qw (
     $navigationHeaderColor $tableBorderColor $markupLogColor
     $tabstop $state $annTable $sel $curbranch @HideModules
     $module $use_descriptions %descriptions @mytz $dwhere $moddate
-    $use_moddate
+    $use_moddate $has_zlib $gzip_open
 );
 
 sub printDiffSelect($);
 sub findLastModifiedSubdirs(@);
 sub htmlify($;$);
-sub spacedHtmlText($);
+sub spacedHtmlText($;$);
 sub link($$);
 sub revcmp($$);
 sub fatal($$);
 sub redirect($);
 sub safeglob($);
 sub getMimeTypeFromSuffix($);
+sub head($;$);
+sub scan_directives(@);
 sub doAnnotate($$);
 sub doCheckout($$);
 sub cvswebMarkup($$$);
@@ -121,14 +125,13 @@ sub forbidden_module($);
 use Cwd;
 
 # == EDIT this ==
-# User configuration is stored in
-$config = undef;
-
-for ($ENV{CVSWEB_CONFIG},
-#     '/home/knu/etc/cvsweb.conf',
+# Locations to search for user configuration, in order:
+for (
+     $ENV{CVSWEB_CONFIG},
      '/usr/local/etc/cvsweb.conf',
-     getcwd . '/cvsweb.conf') {
-  $config = $_ if defined($_) && -r $_;
+     getcwd() . '/cvsweb.conf'
+    ) {
+    $config = $_ if defined($_) && -r $_;
 }
 
 # == Configuration defaults ==
@@ -142,8 +145,9 @@ $allow_version_select = 1;
 # These are defined to allow checking with perl -cw
 %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS = %MTYPES =
 %tags = %alltags = @tabcolors = ();
-$cvstreedefault = $body_tag = $logo = $defaulttitle = $address =
-$backcolor = $long_intro = $short_instruction = $shortLogLen =
+$cvstreedefault = $body_tag = $body_tag_for_src =
+$logo = $defaulttitle = $address =
+$long_intro = $short_instruction = $shortLogLen =
 $show_author = $dirtable = $tablepadding = $columnHeaderColorDefault =
 $columnHeaderColorSorted = $hr_breakable = $showfunc = $hr_ignwhite =
 $hr_ignkeysubst = $diffcolorHeading = $diffcolorEmpty = $diffcolorRemove =
@@ -153,13 +157,20 @@ $allow_markup = $use_java_script = $open_extern_window
 $extern_window_width = $extern_window_height = $edit_option_form =
 $checkout_magic = $show_subdir_lastmod = $show_log_in_markup = $v =
 $navigationHeaderColor = $tableBorderColor = $markupLogColor =
-$tabstop = $use_moddate = $moddate = undef;
+$tabstop = $use_moddate = $moddate = $gzip_open = undef;
 
 ##### End of configuration variables #####
 
 use Time::Local;
 use IPC::Open2;
 
+# Check if the zlib C library interface is installed, and if yes
+# we can avoid using the extra gzip process.
+eval {
+	require Compress::Zlib;
+};
+$has_zlib = !$@;
+
 $verbose = $v;
 $checkoutMagic = "~checkout~";
 $pathinfo = defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
@@ -197,13 +208,13 @@ $nofilelinks = $is_textbased;
 #  braindamaged MS-Internet Exploders claim that they
 # accept gzip .. but don't in fact and
 # display garbage then :-/
-# Turn off gzip if running under mod_perl. piping does
-# not work as expected inside the server. One can probably
-# achieve the same result using Apache::GZIPFilter.
-$maycompress = (($ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`
+# Turn off gzip if running under mod_perl and no zlib is available,
+# piping does not work as expected inside the server.
+$maycompress = (((defined($ENV{HTTP_ACCEPT_ENCODING})
+		 && $ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`)
 		 || $is_mozilla3)
 		&& !$is_msie
-		&& !$is_mod_perl);
+		&& !($is_mod_perl && !$has_zlib));
 
 # put here the variables we need in order
 # to hold our state - they will be added (with
@@ -212,9 +223,11 @@ $maycompress = (($ENV{HTTP_ACCEPT_ENCODING} =~ m`gzip`
 @stickyvars = qw(cvsroot hideattic sortby logsort f only_with_tag);
 
 if (-f $config) {
-    do $config;
-}
-else {
+   do $config
+     || &fatal("500 Internal Error",
+	       sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
+		       $config, &htmlify($@)));
+} else {
    &fatal("500 Internal Error",
 	  'Configuration not found.  Set the variable <code>$config</code> '
           . 'in cvsweb.cgi, or the environment variable '
@@ -343,10 +356,18 @@ foreach my $k (keys %ICONS) {
     }
 }
 
+my $config_cvstree = "$config-$cvstree";
+
 # Do some special configuration for cvstrees
-do "$config-$cvstree" if (-f "$config-$cvstree");
+if (-f $config_cvstree) {
+   do $config_cvstree
+     || &fatal("500 Internal Error",
+	       sprintf('Error in loading configuration file: %s<BR><BR>%s<BR>',
+		       $config_cvstree, &htmlify($@)));
+}
 
 $prcategories = '(?:' . join('|', @prcategories) . ')';
+$prcgi .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
 
 $fullname = $cvsroot . '/' . $where;
 $mimetype = &getMimeTypeFromSuffix ($fullname);
@@ -358,7 +379,7 @@ $defaultViewable = $allow_markup && viewable($mimetype
 # ge get an Internal Server Error if we try to pipe the
 # output through the nonexistent gzip ..
 # any more elegant ways to prevent this are welcome!
-if ($allow_compress && $maycompress) {
+if ($allow_compress && $maycompress && !$has_zlib) {
     foreach (split(/:/, $ENV{PATH})) {
 	if (-x "$_/gzip") {
 	    $GZIPBIN = "$_/gzip";
@@ -709,7 +730,8 @@ elsif (-d $fullname) {
 	    foreach my $var (@stickyvars) {
 		print "<INPUT TYPE=HIDDEN NAME=\"$var\" VALUE=\"$input{$var}\">\n"
 		    if (defined($input{$var})
-			&& $input{$var} ne $DEFAULTVALUE{$var}
+			&& (!defined($DEFAULTVALUE{$var})
+			    || $input{$var} ne $DEFAULTVALUE{$var})
 			&& $input{$var} ne ""
 			&& $var ne "only_with_tag");
 	    }
@@ -771,15 +793,18 @@ elsif (-d $fullname) {
     elsif (-f $fullname . ',v') {
 	if (defined($input{'rev'}) || $doCheckout) {
 	    &doCheckout($fullname, $input{'rev'});
+	    gzipclose();
 	    exit;
 	}
 	if (defined($input{'annotate'}) && $allow_annotate) {
 	    &doAnnotate($input{'annotate'});
+	    gzipclose();
 	    exit;
 	}
 	if (defined($input{'r1'}) && defined($input{'r2'})) {
 	    &doDiff($fullname, $input{'r1'}, $input{'tr1'},
 		    $input{'r2'}, $input{'tr2'}, $input{'f'});
+	    gzipclose();
 	    exit;
 	}
 	print("going to dolog($fullname)\n") if ($verbose);
@@ -802,6 +827,7 @@ elsif (-d $fullname) {
 	# e.g. foo.c
 	&doDiff($fullname, $input{'r1'}, $input{'tr1'},
 		$input{'r2'}, $input{'tr2'}, $input{'f'});
+	gzipclose();
 	exit;
     }
     elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1| &&
@@ -835,6 +861,8 @@ elsif (-d $fullname) {
 	}
 	&fatal("404 Not Found","$where: no such file or directory");
     }
+
+gzipclose();
 ## End MAIN
 
 sub printDiffSelect($) {
@@ -886,7 +914,7 @@ sub findLastModifiedSubdirs(@) {
 }
 
 sub htmlify($;$) {
-	my($string, $pr) = @_;
+	my($string, $extra) = @_;
 
 	# Special Characters; RFC 1866
 	$string =~ s/&/&amp;/g;
@@ -895,48 +923,52 @@ sub htmlify($;$) {
 	$string =~ s/>/&gt;/g;
 
 	# get URL's as link ..
-	$string =~ s`(http|ftp|https)(://[-a-zA-Z0-9%.~:_/]+)([?&]([-a-zA-Z0-9%.~:_]+)=([-a-zA-Z0-9%.~:_])+)*`<A HREF="$1$2$3">$1$2$3</A>`g;
+	$string =~ s`(http|ftp|https)(://[-a-zA-Z0-9%.~:_/]+)([?&]([-a-zA-Z0-9%.~:_]+)=([-a-zA-Z0-9%.~:_])+)*`<A HREF="$1$2$3">$1$2$3</A>`g;	# `
 	# get e-mails as link
-	$string =~ s`([-a-zA-Z0-9_.]+@([-a-zA-Z0-9]+\.)+[A-Za-z]{2,4})`<A HREF="mailto:$1">$1</A>`g;
+	$string =~ s`([-a-zA-Z0-9_.]+@([-a-zA-Z0-9]+\.)+[A-Za-z]{2,4})`<A HREF="mailto:$1">$1</A>`g;	# `
 
-	# get #PR as link ..
-	if ($pr && defined($prcgi)) {
-	    1 while $string =~ s`\b(pr[:#]?\s*(?:#?\d+[,\s]\s*)*#?)(\d+)\b`$1<A HREF="$prcgi$2">$2</A>`i;
-	    $string =~ s`\b${prcategories}/(\d+)\b`<A HREF="$prcgi$1">$&</A>`igo;
+	if ($extra) {
+	    # get PR #'s as link ..
+	    if (defined($prcgi)) {
+		1 while $string =~ s`\b(pr[:#]?\s*(?:#?\d+[,\s]\s*)*#?)(\d+)\b`$1 . &link($2, sprintf($prcgi, $2))`ie; # `
+		$string =~ s`\b${prcategories}/(\d+)\b`&link($&, sprintf($prcgi, $1))`igeo;	# `
+	    }
+
+	    # get manpage specs as link ..
+	    if (defined($mancgi)) {
+		$string =~ s`\b([a-zA-Z]\w+)\(([0-9n])\)\B`&link($&, sprintf($mancgi, $2, $1))`ge; # `
+	    }
 	}
 
 	return $string;
 }
 
-sub spacedHtmlText($) {
+sub spacedHtmlText($;$) {
 	local $_ = $_[0];
+	my $ts = $_[1] || $tabstop;
 
-	# Cut trailing spaces
-	s/\s+\n$//;
+	# Cut trailing spaces and tabs
+	s/[ \t]+$//;
 
-	# Expand tabs
-	s/\t+/' ' x (length($&) * $tabstop - length($`) % $tabstop)/e
-	    if (defined($tabstop));
+        if (defined($ts)) {
+	    # Expand tabs
+	    1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e
+	}
 
 	# replace <tab> and <space> (\001 is to protect us from htmlify)
 	# gzip can make excellent use of this repeating pattern :-)
-	s/\001/\001%/g; #protect our & substitute
 	if ($hr_breakable) {
 	    # make every other space 'breakable'
-	    s/	/ \001nbsp; \001nbsp; \001nbsp; \001nbsp;/g;    # <tab>
 	    s/  / \001nbsp;/g;                              # 2 * <space>
 	    # leave single space as it is
-	}
-	else {
-	    s/	/\001nbsp;\001nbsp;\001nbsp;\001nbsp;\001nbsp;\001nbsp;\001nbsp;\001nbsp;/g;
+	} else {
 	    s/ /\001nbsp;/g;
 	}
 
 	$_ = htmlify($_);
 
 	# unescape
-	s/\001([^%])/&$1/g;
-	s/\001%/\001/g;
+	y/\001/&/;
 
 	return $_;
 }
@@ -1056,6 +1088,40 @@ sub getMimeTypeFromSuffix($) {
 }
 
 ###############################
+# read first lines like head(1)
+###############################
+sub head($;$) {
+    my $fh = $_[0];
+    my $linecount = $_[1] || 10;
+
+    my @buf;
+
+    if ($linecount > 0) {
+	my $i;
+	for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
+	    push @buf, scalar <$fh>;
+	}
+    } else {
+	@buf = <$fh>;
+    }
+
+    @buf;
+}
+
+###############################
+# scan vim and Emacs directives
+###############################
+sub scan_directives(@) {
+    my $ts = undef;
+
+    for (@_) {
+	$ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
+    }
+
+    ('tabstop' => $ts);
+}
+
+###############################
 # show Annotation
 ###############################
 sub doAnnotate($$) {
@@ -1075,11 +1141,6 @@ sub doAnnotate($$) {
     ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
     ($filename = $where) =~ s/^.*\///;
 
-    http_header();
-
-    navigateHeader($scriptwhere,$pathname,$filename,$rev, "annotate");
-    print "<h3 align=center>Annotation of $pathname$filename, Revision $rev</h3>\n";
-
     # this seems to be necessary
     $| = 1; $| = 0; # Flush
 
@@ -1089,7 +1150,7 @@ sub doAnnotate($$) {
     # the public domain.
     # we could abandon the use of rlog, rcsdiff and co using
     # the cvsserver in a similiar way one day (..after rewrite)
-    $pid = open2($reader, $writer, "cvs server") || fatal ("500 Internal Error",
+    $pid = open2($reader, $writer, "cvs -Rl server") || fatal ("500 Internal Error",
 							       "Fatal Error - unable to open cvs for annotation");
 
     # OK, first send the request to the server.  A simplified example is:
@@ -1141,6 +1202,11 @@ sub doAnnotate($$) {
     # were nicer about buffering, then we could just leave it open, I think.
     close ($writer) || die "cannot close: $!";
 
+    http_header();
+
+    navigateHeader($scriptwhere,$pathname,$filename,$rev, "annotate");
+    print "<h3 align=center>Annotation of $pathname$filename, Revision $rev</h3>\n";
+
     # Ready to get the responses from the server.
     # For example:
     #     E Annotations for foo/xx
@@ -1156,7 +1222,15 @@ sub doAnnotate($$) {
     else {
 	print "<pre>";
     }
-    while (<$reader>) {
+
+    # prefetch several lines
+    my @buf = head($reader);
+
+    my %d = scan_directives(@buf);
+
+    while (@buf || !eof($reader)) {
+	$_ = @buf ? shift @buf : <$reader>;
+
 	my @words = split;
 	# Adding one is for the (single) space which follows $words[0].
 	my $rest = substr ($_, length ($words[0]) + 1);
@@ -1165,32 +1239,41 @@ sub doAnnotate($$) {
 	}
 	elsif ($words[0] eq "M") {
 	    $lineNr++;
-	    my $lrev = substr ($_, 2, 13);
-	    my $lusr = substr ($_, 16,  9);
-	    my $line = substr ($_, 36);
+	    (my $lrev = substr($_, 2, 13)) =~ y/ //d;
+	    (my $lusr = substr($_, 16,  9)) =~ y/ //d;
+	    my $line = substr($_, 36);
+	    my $isCurrentRev = ($rev eq $lrev);
 	    # we should parse the date here ..
 	    if ($lrev eq $oldLrev) {
-		$revprint = "             ";
+		$revprint = sprintf('%-8s', '');
 	    }
 	    else {
-		$revprint = $lrev; $oldLusr = "";
+		$revprint = sprintf('%-8s', $lrev);
+		$revprint =~ s`\S+`<a href="${scriptwhere}${barequery}#rev$1">$&</A>`;	# `		
+		$oldLusr = '';
 	    }
 	    if ($lusr eq $oldLusr) {
-		$usrprint = "         ";
+		$usrprint = '';
 	    }
 	    else {
 		$usrprint = $lusr;
 	    }
 	    $oldLrev = $lrev;
 	    $oldLusr = $lusr;
-	    # is there a less timeconsuming way to strip spaces ?
-	    ($lrev = $lrev) =~ s/\s+//g;
-	    my $isCurrentRev = ($rev eq $lrev);
 
-	    print "<b>" if ($isCurrentRev);
-	    printf ("%8s%s%8s %4d:", $revprint, ($isCurrentRev ? "|" : " "), $usrprint, $lineNr);
-	    print spacedHtmlText($line);
-	    print "</b>" if ($isCurrentRev);
+	    # Set bold for text-based browsers only - graphical
+	    # browsers show bold fonts a bit wider than regular fonts,
+	    # so it looks irregular.
+	    print "<b>" if ($isCurrentRev && $is_textbased);
+
+	    printf ("%s%s %-8s %4d:",
+		    $revprint,
+		    $isCurrentRev ? '!' : ' ',
+		    $usrprint,
+		    $lineNr);
+	    print spacedHtmlText($line, $d{'tabstop'});
+
+	    print "</b>" if ($isCurrentRev && $is_textbased);
 	}
 	elsif ($words[0] eq "ok") {
 	    # We could complain about any text received after this, like the
@@ -1332,16 +1415,26 @@ sub cvswebMarkup($$$) {
 	    $input{only_with_tag};
     }
     print "</td></tr></table>";
-    my @content = <$filehandle>;
     my $url = download_url($fileurl, $revision, $mimetype);
     print "<HR noshade>";
     if ($mimetype =~ /^image/) {
 	print "<IMG SRC=\"$url$barequery\"><BR>";
     }
+    elsif ($mimetype =~ m%^application/pdf%) {
+	print "<EMBED SRC=\"$url$barequery\" WIDTH=\"100%\"><BR>";
+    }
     else {
 	print "<PRE>";
-	foreach (@content) {
-	    print spacedHtmlText($_);
+
+	# prefetch several lines
+	my @buf = head($filehandle);
+
+	my %d = scan_directives(@buf);
+
+	while (@buf || !eof($filehandle)) {
+	    $_ = @buf ? shift @buf : <$filehandle>;
+
+	    print spacedHtmlText($_, $d{'tabstop'});
 	}
 	print "</PRE>";
     }
@@ -1350,7 +1443,7 @@ sub cvswebMarkup($$$) {
 sub viewable($) {
     my ($mimetype) = @_;
 
-    $mimetype =~ m%^(text|image)/%;
+    $mimetype =~ m%^((text|image)/|application/pdf)% ;
 }
 
 ###############################
@@ -1448,6 +1541,7 @@ sub doDiff($$$$$$) {
 	if ($human_readable) {
 	    http_header();
 	    &human_readable_diff($fh, $rev2);
+	    gzipclose();
 	    exit;
 	}
 	else {
@@ -2117,40 +2211,42 @@ EOF
         foreach (@stickyvars) {
 	    print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
 		if (defined($input{$_})
-		    && ($input{$_} ne $DEFAULTVALUE{$_} && $input{$_} ne ""));
+		    && ((!defined($DEFAULTVALUE{$_})
+		         || $input{$_} ne $DEFAULTVALUE{$_})
+		        && $input{$_} ne ""));
 	}
-	print "Diffs between \n";
+	print "<TABLE><TR>\n";
+	print "<TD align=right>Diffs between \n";
 	print "<SELECT NAME=\"r1\">\n";
 	print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
 	print $sel;
 	print "</SELECT>\n";
 	$diffrev = $revdisplayorder[$#revdisplayorder];
 	$diffrev = $input{"r1"} if (defined($input{"r1"}));
-	print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr1\" VALUE=\"$diffrev\" onChange='document.diff_select.r1.selectedIndex=0'>\n";
-	print " and \n";
+	print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr1\" VALUE=\"$diffrev\" onChange='document.diff_select.r1.selectedIndex=0'></TD>";
+	print "<TD><BR></TD></TR>\n";
+	print "<TR><TD align=right>and \n";
 	print "<SELECT NAME=\"r2\">\n";
 	print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
 	print $sel;
 	print "</SELECT>\n";
 	$diffrev = $revdisplayorder[0];
 	$diffrev = $input{"r2"} if (defined($input{"r2"}));
-	print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr2\" VALUE=\"$diffrev\" onChange='document.diff_select.r2.selectedIndex=0'>\n";
-        print "<BR>Type of Diff should be a&nbsp;";
-	printDiffSelect(0);
-	print "<INPUT TYPE=SUBMIT VALUE=\"  Get Diffs  \">\n";
+	print "<INPUT TYPE=\"TEXT\" SIZE=\"$inputTextSize\" NAME=\"tr2\" VALUE=\"$diffrev\" onChange='document.diff_select.r2.selectedIndex=0'></TD>";
+	print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Get Diffs  \"></TD>\n";
 	print "</FORM>\n";
+	print "</TR></TABLE>\n";
 	print "<HR noshade>\n";
+	print "<TABLE>";
+	print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
+        print "<TR><TD align=right>Preferred Diff type:</TD>";
+        print "<TD>";
+	printDiffSelect($use_java_script);
+	print "</TD><TD></TD></TR>\n";
         if (@branchnames) {
+	    print "<TR><TD align=right>View only Branch:</TD>";
+	    print "<TD>";
 	    print "<A name=branch></A>\n";
-	    print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
-	    foreach (@stickyvars) {
-		next if ($_ eq "only_with_tag");
-		next if ($_ eq "logsort");
-		print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
-		    if (defined($input{$_}) && $input{$_} ne $DEFAULTVALUE{$_}
-			&& $input{$_} ne "");
-	    }
-	    print "View only Branch: \n";
 	    print "<SELECT NAME=\"only_with_tag\"";
 	    print " onchange=\"submit()\"" if ($use_java_script);
 	    print ">\n";
@@ -2164,29 +2260,31 @@ EOF
 			&& $input{"only_with_tag"} eq $_);
 		print ">${_}\n";
 	    }
-	    print "</SELECT>\n";
-	    print "<INPUT TYPE=SUBMIT VALUE=\"  View Branch  \">\n";
-	    print "</FORM>\n";
+	    print "</SELECT></TD><TD></TD></TR>\n";
 	}
-	print "<A name=logsort></A>\n";
-	print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
 	foreach (@stickyvars) {
+	    next if ($_ eq "f");
 	    next if ($_ eq "only_with_tag");
 	    next if ($_ eq "logsort");
 	    print "<INPUT TYPE=HIDDEN NAME=\"$_\" VALUE=\"$input{$_}\">\n"
-		if (defined($input{$_}) && $input{$_} ne $DEFAULTVALUE{$_}
+		if (defined($input{$_})
+		    && (!defined($DEFAULTVALUE{$_})
+		        || $input{$_} ne $DEFAULTVALUE{$_})
 		    && $input{$_} ne "");
 	}
-	print "Sort log by: \n";
-	print "<SELECT NAME=\"logsort\"";
+	print "<TR><TD align=right>";
+	print "<A name=logsort></A>\n";
+	print "Sort log by:</TD>";
+	print "<TD><SELECT NAME=\"logsort\"";
 	print " onchange=\"submit()\"" if ($use_java_script);
 	print ">\n";
 	print "<OPTION VALUE=cvs",$logsort eq "cvs" ? " SELECTED" : "", ">Not sorted";
 	print "<OPTION VALUE=date",$logsort eq "date" ? " SELECTED" : "", ">Commit date";
 	print "<OPTION VALUE=rev",$logsort eq "rev" ? " SELECTED" : "", ">Revision";
-	print "</SELECT>\n";
-	print "<INPUT TYPE=SUBMIT VALUE=\"  Sort  \">\n";
+	print "</SELECT></TD>";
+	print "<TD><INPUT TYPE=SUBMIT VALUE=\"  Set  \"></TD>";
 	print "</FORM>\n";
+	print "</TR></TABLE>";
         print &html_footer;
 	print "</BODY></HTML>\n";
 }
@@ -2226,7 +2324,7 @@ sub flush_diff_rows($$$$) {
 # human_readable_diff(String revision_to_return_to);
 ##
 sub human_readable_diff($){
-  my ($i,$difftxt, $where_nd, $filename, $pathname, $scriptwhere_nd);
+  my ($difftxt, $where_nd, $filename, $pathname, $scriptwhere_nd);
   my ($fh, $rev) = @_;
   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
   my (@rightCol, @leftCol);
@@ -2280,9 +2378,15 @@ sub human_readable_diff($){
   # cascading style sheets because we've to set the
   # font and color for each row. anyone ...?
   ####
-  while (<$fh>) {
-      $difftxt = $_;
 
+  # prefetch several lines
+  my @buf = head($fh);
+
+  my %d = scan_directives(@buf);
+
+  while (@buf || !eof($fh)) {
+      $difftxt = @buf ? shift @buf : <$fh>;
+
       if ($difftxt =~ /^@@/) {
 	  ($oldline,$newline,$funname) = $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
           print  "<tr bgcolor=\"$diffcolorHeading\"><td width=\"50%\">";
@@ -2298,7 +2402,7 @@ sub human_readable_diff($){
       }
       else {
 	  ($diffcode,$rest) = $difftxt =~ /^([-+ ])(.*)/;
-	  $_ = spacedHtmlText ($rest);
+	  $_ = spacedHtmlText($rest, $d{'tabstop'});
 
 	  # Add fontface, size
 	  $_ = "$fs&nbsp;$_$fe";
@@ -2382,9 +2486,9 @@ sub navigateHeader($$$$$) {
     $swhere = urlencode($filename) if ($swhere eq "");
     print "<\!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">";
     print "<HTML>\n<HEAD>\n";
-    print '<!-- CVSweb $zRevision: 1.94 $  $Revision: 3.16 $ -->';
+    print '<!-- CVSweb $zRevision: 1.103 $  $Revision: 3.30 $ -->';
     print "\n<TITLE>$path$filename - $title - $rev</TITLE></HEAD>\n";
-    print  "<BODY BGCOLOR=\"$backcolor\">\n";
+    print  "$body_tag_for_src\n";
     print "<table width=\"100%\" border=0 cellspacing=0 cellpadding=1 bgcolor=\"$navigationHeaderColor\">";
     print "<tr valign=bottom><td>";
     print  "<a href=\"$swhere$query#rev$rev\">$backicon";
@@ -2683,7 +2787,7 @@ sub http_header(;$) {
     my $content_type = shift || "text/html";
     if (defined($moddate)) {
 	if ($is_mod_perl) {
-	    Apache->request->header_out(Last_modified => scalar gmtime($moddate) . " GMT");
+	    Apache->request->header_out("Last-Modified" => scalar gmtime($moddate) . " GMT");
 	}
 	else {
 	    print "Last-Modified: " . scalar gmtime($moddate) . " GMT\r\n";
@@ -2696,8 +2800,7 @@ sub http_header(;$) {
 	    print "Content-type: $content_type\r\n";
     }
     if ($allow_compress && $maycompress) {
-	my $fh = do {local(*FH);};
-	if (defined($GZIPBIN) && open($fh, "|$GZIPBIN -1 -c")) {
+	if ($has_zlib || (defined($GZIPBIN) && open(GZIP, "|$GZIPBIN -1 -c"))) {
 	    if ($is_mod_perl) {
 		    Apache->request->content_encoding("x-gzip");
 		    Apache->request->header_out(Vary => "Accept-Encoding");
@@ -2709,7 +2812,11 @@ sub http_header(;$) {
 		    print "\r\n"; # Close headers
 	    }
 	    $| = 1; $| = 0; # Flush header output
-	    select ($fh);
+	    if ($has_zlib) {
+	    	tie *GZIP, __PACKAGE__, \*STDOUT;
+	    }
+	    select(GZIP);
+	    $gzip_open = 1;
 #	    print "<!-- gzipped -->" if ($content_type eq "text/html");
 	}
 	else {
@@ -2734,7 +2841,7 @@ sub http_header(;$) {
 
 sub html_header($) {
     my ($title) = @_;
-    my $version = '$zRevision: 1.94 $  $Revision: 3.16 $'; #'
+    my $version = '$zRevision: 1.103 $  $Revision: 3.30 $'; #'
     http_header();
     print <<EOH;
 <!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN"
@@ -2779,4 +2886,83 @@ sub forbidden_module($) {
     }
 
     return 0;
+}
+
+# Close the GZIP handle remove the tie.
+
+sub gzipclose {
+	if ($gzip_open) {
+	    select(STDOUT);
+	    close(GZIP);
+	    untie *GZIP;
+	    $gzip_open = 0;
+	}
+}
+
+# implement a gzipped file handle via the Compress:Zlib compression
+# library.
+
+sub MAGIC1() { 0x1f }
+sub MAGIC2() { 0x8b }
+sub OSCODE() { 3    }
+
+sub TIEHANDLE {
+	my ($class, $out) = @_;
+	my ($d) = Compress::Zlib::deflateInit(-Level => Compress::Zlib::Z_BEST_COMPRESSION(),
+		-WindowBits => -Compress::Zlib::MAX_WBITS()) or return undef;
+	my ($o) = {
+		handle => $out,
+		dh => $d,
+		crc => 0,
+		len => 0,
+	};
+	my ($header) = pack("c10", MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(), 0,0,0,0,0,0, OSCODE);
+	print {$o->{handle}} $header;
+	return bless($o, $class);
+}
+
+sub PRINT {
+	my ($o) = shift;
+	my ($buf) = join(defined $, ? $, : "",@_);
+	my ($len) = length($buf);
+	my ($compressed, $status) = $o->{dh}->deflate($buf);
+	print {$o->{handle}} $compressed if defined($compressed);
+	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
+	$o->{len} += $len;
+	return $len;
+}
+
+sub PRINTF {
+	my ($o) = shift;
+	my ($fmt) = shift;
+	my ($buf) = sprintf($fmt, @_);
+	my ($len) = length($buf);
+	my ($compressed, $status) = $o->{dh}->deflate($buf);
+	print {$o->{handle}} $compressed if defined($compressed);
+	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
+	$o->{len} += $len;
+	return $len;
+}
+
+sub WRITE {
+	my ($o, $buf, $len, $off) = @_;
+	my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
+	print {$o->{handle}} $compressed if defined($compressed);
+	$o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
+	$o->{len} += $len;
+	return $len;
+}
+
+sub CLOSE {
+	my ($o) = @_;
+	return if !defined( $o->{dh});
+	my ($buf) = $o->{dh}->flush();
+	$buf .= pack("V V", $o->{crc}, $o->{len});
+	print {$o->{handle}} $buf;
+	undef $o->{dh};
+}
+
+sub DESTROY {
+	my ($o) = @_;
+	CLOSE($o);
 }