Import site to git

20 files changed, 2621 insertions, 0 deletions

diff --git a/bin/contrib/fix-rc-scripts b/bin/contrib/fix-rc-scripts
new file mode 100755
index 0000000..beb21c5
--- /dev/null
+++ b/bin/contrib/fix-rc-scripts
@@ -0,0 +1,27 @@
+#!/usr/local/plan9/bin/rc
+
+# Fix rc shell scripts to find rc without launching env every time.
+# Invoke with rc and plan9 versions of grep and ed in $PATH
+
+# If your system lacks which (e.g. some gnu/linux)
+# substitute the full path to rc in this line:
+rc=/usr/local/plan9/bin/rc
+firstline='#!'$"rc
+
+if(~ $#* 0)	files = *
+if not	files = $*
+
+myname = `{basename $0}
+
+for(file in $files) {
+	if(test -d $file) $0 $file/*
+	if not if(~ $file *$myname) {}
+	if not if(sed 1q $file | grep '^#!/.*[/	 ]rc$' > /dev/null) {
+		{
+			echo 1c
+			echo $firstline
+			echo .
+			echo wq
+		} | ed $file > /dev/null
+	}
+}
diff --git a/bin/contrib/hgweb.config b/bin/contrib/hgweb.config
new file mode 100755
index 0000000..fba802b
--- /dev/null
+++ b/bin/contrib/hgweb.config
@@ -0,0 +1,12 @@
+[web]
+style = gitweb
+allow_archive = bz2
+
+#[paths]
+#w9 = /gsoc/hg/w9/
+
+[collections]
+#allow_archive = bz2 zip
+/gsoc/hg = /gsoc/hg/
+#/var/hg = /var/hg/
+
diff --git a/bin/contrib/hgwebdir.cgi b/bin/contrib/hgwebdir.cgi
new file mode 100755
index 0000000..5fe4b16
--- /dev/null
+++ b/bin/contrib/hgwebdir.cgi
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+#
+# An example CGI script to export multiple hgweb repos, edit as necessary
+
+# send python tracebacks to the browser if an error occurs:
+import cgitb
+cgitb.enable()
+
+# adjust python path if not a system-wide install:
+#import sys
+#sys.path.insert(0, "/path/to/python/lib")
+
+# If you'd like to serve pages with UTF-8 instead of your default
+# locale charset, you can do so by uncommenting the following lines.
+# Note that this will cause your .hgrc files to be interpreted in
+# UTF-8 and all your repo files to be displayed using UTF-8.
+#
+#import os
+#os.environ["HGENCODING"] = "UTF-8"
+
+from mercurial.hgweb.hgwebdir_mod import hgwebdir
+from mercurial.hgweb.request import wsgiapplication
+import mercurial.hgweb.wsgicgi as wsgicgi
+
+# The config file looks like this.  You can have paths to individual
+# repos, collections of repos in a directory tree, or both.
+#
+# [paths]
+# virtual/path = /real/path
+# virtual/path = /real/path
+#
+# [collections]
+# /prefix/to/strip/off = /root/of/tree/full/of/repos
+#
+# collections example: say directory tree /foo contains repos /foo/bar,
+# /foo/quux/baz.  Give this config section:
+#   [collections]
+#   /foo = /foo
+# Then repos will list as bar and quux/baz.
+#
+# Alternatively you can pass a list of ('virtual/path', '/real/path') tuples
+# or use a dictionary with entries like 'virtual/path': '/real/path'
+
+def make_web_app():
+    return hgwebdir("hgweb.config")
+
+wsgicgi.launch(wsgiapplication(make_web_app))
diff --git a/bin/contrib/markdown.pl b/bin/contrib/markdown.pl
new file mode 100755
index 0000000..3758a87
--- /dev/null
+++ b/bin/contrib/markdown.pl
@@ -0,0 +1,1447 @@
+#!/usr/bin/env perl
+#
+# Markdown -- A text-to-HTML conversion tool for web writers
+#
+# Copyright (c) 2004 John Gruber
+# <http://daringfireball.net/projects/markdown/>
+#
+package Markdown;
+require 5.006_000;
+use strict;
+use warnings;
+
+use Digest::MD5 qw(md5_hex);
+use vars qw($VERSION);
+$VERSION = '1.0.1';
+# Tue 14 Dec 2004
+
+## Disabled; causes problems under Perl 5.6.1:
+# use utf8;
+# binmode( STDOUT, ":utf8" );  # c.f.: http://acis.openlib.org/dev/perl-unicode-struggle.html
+
+
+#
+# Global default settings:
+#
+my $g_empty_element_suffix = " />";     # Change to ">" for HTML output
+my $g_tab_width = 4;
+
+
+#
+# Globals:
+#
+
+# Regex to match balanced [brackets]. See Friedl's
+# "Mastering Regular Expressions", 2nd Ed., pp. 328-331.
+my $g_nested_brackets;
+$g_nested_brackets = qr{
+	(?> 								# Atomic matching
+	   [^\[\]]+							# Anything other than brackets
+	 | 
+	   \[
+		 (??{ $g_nested_brackets })		# Recursive set of nested brackets
+	   \]
+	)*
+}x;
+
+
+# Table of hash values for escaped characters:
+my %g_escape_table;
+foreach my $char (split //, '\\`*_{}[]()>#+-.!') {
+	$g_escape_table{$char} = md5_hex($char);
+}
+
+
+# Global hashes, used by various utility routines
+my %g_urls;
+my %g_titles;
+my %g_html_blocks;
+
+# Used to track when we're inside an ordered or unordered list
+# (see _ProcessListItems() for details):
+my $g_list_level = 0;
+
+
+#### Blosxom plug-in interface ##########################################
+
+# Set $g_blosxom_use_meta to 1 to use Blosxom's meta plug-in to determine
+# which posts Markdown should process, using a "meta-markup: markdown"
+# header. If it's set to 0 (the default), Markdown will process all
+# entries.
+my $g_blosxom_use_meta = 0;
+
+sub start { 1; }
+sub story {
+	my($pkg, $path, $filename, $story_ref, $title_ref, $body_ref) = @_;
+
+	if ( (! $g_blosxom_use_meta) or
+	     (defined($meta::markup) and ($meta::markup =~ /^\s*markdown\s*$/i))
+	     ){
+			$$body_ref  = Markdown($$body_ref);
+     }
+     1;
+}
+
+
+#### Movable Type plug-in interface #####################################
+eval {require MT};  # Test to see if we're running in MT.
+unless ($@) {
+    require MT;
+    import  MT;
+    require MT::Template::Context;
+    import  MT::Template::Context;
+
+	eval {require MT::Plugin};  # Test to see if we're running >= MT 3.0.
+	unless ($@) {
+		require MT::Plugin;
+		import  MT::Plugin;
+		my $plugin = new MT::Plugin({
+			name => "Markdown",
+			description => "A plain-text-to-HTML formatting plugin. (Version: $VERSION)",
+			doc_link => 'http://daringfireball.net/projects/markdown/'
+		});
+		MT->add_plugin( $plugin );
+	}
+
+	MT::Template::Context->add_container_tag(MarkdownOptions => sub {
+		my $ctx	 = shift;
+		my $args = shift;
+		my $builder = $ctx->stash('builder');
+		my $tokens = $ctx->stash('tokens');
+
+		if (defined ($args->{'output'}) ) {
+			$ctx->stash('markdown_output', lc $args->{'output'});
+		}
+
+		defined (my $str = $builder->build($ctx, $tokens) )
+			or return $ctx->error($builder->errstr);
+		$str;		# return value
+	});
+
+	MT->add_text_filter('markdown' => {
+		label     => 'Markdown',
+		docs      => 'http://daringfireball.net/projects/markdown/',
+		on_format => sub {
+			my $text = shift;
+			my $ctx  = shift;
+			my $raw  = 0;
+		    if (defined $ctx) {
+		    	my $output = $ctx->stash('markdown_output'); 
+				if (defined $output  &&  $output =~ m/^html/i) {
+					$g_empty_element_suffix = ">";
+					$ctx->stash('markdown_output', '');
+				}
+				elsif (defined $output  &&  $output eq 'raw') {
+					$raw = 1;
+					$ctx->stash('markdown_output', '');
+				}
+				else {
+					$raw = 0;
+					$g_empty_element_suffix = " />";
+				}
+			}
+			$text = $raw ? $text : Markdown($text);
+			$text;
+		},
+	});
+
+	# If SmartyPants is loaded, add a combo Markdown/SmartyPants text filter:
+	my $smartypants;
+
+	{
+		no warnings "once";
+		$smartypants = $MT::Template::Context::Global_filters{'smarty_pants'};
+	}
+
+	if ($smartypants) {
+		MT->add_text_filter('markdown_with_smartypants' => {
+			label     => 'Markdown With SmartyPants',
+			docs      => 'http://daringfireball.net/projects/markdown/',
+			on_format => sub {
+				my $text = shift;
+				my $ctx  = shift;
+				if (defined $ctx) {
+					my $output = $ctx->stash('markdown_output'); 
+					if (defined $output  &&  $output eq 'html') {
+						$g_empty_element_suffix = ">";
+					}
+					else {
+						$g_empty_element_suffix = " />";
+					}
+				}
+				$text = Markdown($text);
+				$text = $smartypants->($text, '1');
+			},
+		});
+	}
+}
+else {
+#### BBEdit/command-line text filter interface ##########################
+# Needs to be hidden from MT (and Blosxom when running in static mode).
+
+    # We're only using $blosxom::version once; tell Perl not to warn us:
+	no warnings 'once';
+    unless ( defined($blosxom::version) ) {
+		use warnings;
+
+		#### Check for command-line switches: #################
+		my %cli_opts;
+		use Getopt::Long;
+		Getopt::Long::Configure('pass_through');
+		GetOptions(\%cli_opts,
+			'version',
+			'shortversion',
+			'html4tags',
+		);
+		if ($cli_opts{'version'}) {		# Version info
+			print "\nThis is Markdown, version $VERSION.\n";
+			print "Copyright 2004 John Gruber\n";
+			print "http://daringfireball.net/projects/markdown/\n\n";
+			exit 0;
+		}
+		if ($cli_opts{'shortversion'}) {		# Just the version number string.
+			print $VERSION;
+			exit 0;
+		}
+		if ($cli_opts{'html4tags'}) {			# Use HTML tag style instead of XHTML
+			$g_empty_element_suffix = ">";
+		}
+
+
+		#### Process incoming text: ###########################
+		my $text;
+		{
+			local $/;               # Slurp the whole file
+			$text = <>;
+		}
+        print Markdown($text);
+    }
+}
+
+
+
+sub Markdown {
+#
+# Main function. The order in which other subs are called here is
+# essential. Link and image substitutions need to happen before
+# _EscapeSpecialChars(), so that any *'s or _'s in the <a>
+# and <img> tags get encoded.
+#
+	my $text = shift;
+
+	# Clear the global hashes. If we don't clear these, you get conflicts
+	# from other articles when generating a page which contains more than
+	# one article (e.g. an index page that shows the N most recent
+	# articles):
+	%g_urls = ();
+	%g_titles = ();
+	%g_html_blocks = ();
+
+
+	# Standardize line endings:
+	$text =~ s{\r\n}{\n}g; 	# DOS to Unix
+	$text =~ s{\r}{\n}g; 	# Mac to Unix
+
+	# Make sure $text ends with a couple of newlines:
+	$text .= "\n\n";
+
+	# Convert all tabs to spaces.
+	$text = _Detab($text);
+
+	# Strip any lines consisting only of spaces and tabs.
+	# This makes subsequent regexen easier to write, because we can
+	# match consecutive blank lines with /\n+/ instead of something
+	# contorted like /[ \t]*\n+/ .
+	$text =~ s/^[ \t]+$//mg;
+
+	# Turn block-level HTML blocks into hash entries
+	$text = _HashHTMLBlocks($text);
+
+	# Strip link definitions, store in hashes.
+	$text = _StripLinkDefinitions($text);
+
+	$text = _RunBlockGamut($text);
+
+	$text = _UnescapeSpecialChars($text);
+
+	return $text . "\n";
+}
+
+
+sub _StripLinkDefinitions {
+#
+# Strips link definitions from text, stores the URLs and titles in
+# hash references.
+#
+	my $text = shift;
+	my $less_than_tab = $g_tab_width - 1;
+
+	# Link defs are in the form: ^[id]: url "optional title"
+	while ($text =~ s{
+						^[ ]{0,$less_than_tab}\[(.+)\]:	# id = $1
+						  [ \t]*
+						  \n?				# maybe *one* newline
+						  [ \t]*
+						<?(\S+?)>?			# url = $2
+						  [ \t]*
+						  \n?				# maybe one newline
+						  [ \t]*
+						(?:
+							(?<=\s)			# lookbehind for whitespace
+							["(]
+							(.+?)			# title = $3
+							[")]
+							[ \t]*
+						)?	# title is optional
+						(?:\n+|\Z)
+					}
+					{}mx) {
+		$g_urls{lc $1} = _EncodeAmpsAndAngles( $2 );	# Link IDs are case-insensitive
+		if ($3) {
+			$g_titles{lc $1} = $3;
+			$g_titles{lc $1} =~ s/"/&quot;/g;
+		}
+	}
+
+	return $text;
+}
+
+
+sub _HashHTMLBlocks {
+	my $text = shift;
+	my $less_than_tab = $g_tab_width - 1;
+
+	# Hashify HTML blocks:
+	# We only want to do this for block-level HTML tags, such as headers,
+	# lists, and tables. That's because we still want to wrap <p>s around
+	# "paragraphs" that are wrapped in non-block-level tags, such as anchors,
+	# phrase emphasis, and spans. The list of tags we're looking for is
+	# hard-coded:
+	my $block_tags_a = qr/p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del/;
+	my $block_tags_b = qr/p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math/;
+
+	# First, look for nested blocks, e.g.:
+	# 	<div>
+	# 		<div>
+	# 		tags for inner block must be indented.
+	# 		</div>
+	# 	</div>
+	#
+	# The outermost tags must start at the left margin for this to match, and
+	# the inner nested divs must be indented.
+	# We need to do this before the next, more liberal match, because the next
+	# match will start at the first `<div>` and stop at the first `</div>`.
+	$text =~ s{
+				(						# save in $1
+					^					# start of line  (with /m)
+					<($block_tags_a)	# start tag = $2
+					\b					# word break
+					(.*\n)*?			# any number of lines, minimally matching
+					</\2>				# the matching end tag
+					[ \t]*				# trailing spaces/tabs
+					(?=\n+|\Z)	# followed by a newline or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egmx;
+
+
+	#
+	# Now match more liberally, simply from `\n<tag>` to `</tag>\n`
+	#
+	$text =~ s{
+				(						# save in $1
+					^					# start of line  (with /m)
+					<($block_tags_b)	# start tag = $2
+					\b					# word break
+					(.*\n)*?			# any number of lines, minimally matching
+					.*</\2>				# the matching end tag
+					[ \t]*				# trailing spaces/tabs
+					(?=\n+|\Z)	# followed by a newline or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egmx;
+	# Special case just for <hr />. It was easier to make a special case than
+	# to make the other regex more complicated.	
+	$text =~ s{
+				(?:
+					(?<=\n\n)		# Starting after a blank line
+					|				# or
+					\A\n?			# the beginning of the doc
+				)
+				(						# save in $1
+					[ ]{0,$less_than_tab}
+					<(hr)				# start tag = $2
+					\b					# word break
+					([^<>])*?			# 
+					/?>					# the matching end tag
+					[ \t]*
+					(?=\n{2,}|\Z)		# followed by a blank line or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egx;
+
+	# Special case for standalone HTML comments:
+	$text =~ s{
+				(?:
+					(?<=\n\n)		# Starting after a blank line
+					|				# or
+					\A\n?			# the beginning of the doc
+				)
+				(						# save in $1
+					[ ]{0,$less_than_tab}
+					(?s:
+						<!
+						(--.*?--\s*)+
+						>
+					)
+					[ \t]*
+					(?=\n{2,}|\Z)		# followed by a blank line or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egx;
+
+
+	return $text;
+}
+
+
+sub _RunBlockGamut {
+#
+# These are all the transformations that form block-level
+# tags like paragraphs, headers, and list items.
+#
+	my $text = shift;
+
+	$text = _DoHeaders($text);
+
+	# Do Horizontal Rules:
+	$text =~ s{^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$}{\n<hr$g_empty_element_suffix\n}gmx;
+	$text =~ s{^[ ]{0,2}([ ]? -[ ]?){3,}[ \t]*$}{\n<hr$g_empty_element_suffix\n}gmx;
+	$text =~ s{^[ ]{0,2}([ ]? _[ ]?){3,}[ \t]*$}{\n<hr$g_empty_element_suffix\n}gmx;
+
+	$text = _DoLists($text);
+
+	$text = _DoCodeBlocks($text);
+
+	$text = _DoBlockQuotes($text);
+
+	# We already ran _HashHTMLBlocks() before, in Markdown(), but that
+	# was to escape raw HTML in the original Markdown source. This time,
+	# we're escaping the markup we've just created, so that we don't wrap
+	# <p> tags around block-level tags.
+	$text = _HashHTMLBlocks($text);
+
+	$text = _FormParagraphs($text);
+
+	return $text;
+}
+
+
+sub _RunSpanGamut {
+#
+# These are all the transformations that occur *within* block-level
+# tags like paragraphs, headers, and list items.
+#
+	my $text = shift;
+
+	$text = _DoCodeSpans($text);
+
+	$text = _EscapeSpecialChars($text);
+
+	# Process anchor and image tags. Images must come first,
+	# because ![foo][f] looks like an anchor.
+	$text = _DoImages($text);
+	$text = _DoAnchors($text);
+
+	# Make links out of things like `<http://example.com/>`
+	# Must come after _DoAnchors(), because you can use < and >
+	# delimiters in inline links like [this](<url>).
+	$text = _DoAutoLinks($text);
+
+	$text = _EncodeAmpsAndAngles($text);
+
+	$text = _DoItalicsAndBold($text);
+
+	# Do hard breaks:
+	$text =~ s/ {2,}\n/ <br$g_empty_element_suffix\n/g;
+
+	return $text;
+}
+
+
+sub _EscapeSpecialChars {
+	my $text = shift;
+	my $tokens ||= _TokenizeHTML($text);
+
+	$text = '';   # rebuild $text from the tokens
+# 	my $in_pre = 0;	 # Keep track of when we're inside <pre> or <code> tags.
+# 	my $tags_to_skip = qr!<(/?)(?:pre|code|kbd|script|math)[\s>]!;
+
+	foreach my $cur_token (@$tokens) {
+		if ($cur_token->[0] eq "tag") {
+			# Within tags, encode * and _ so they don't conflict
+			# with their use in Markdown for italics and strong.
+			# We're replacing each such character with its
+			# corresponding MD5 checksum value; this is likely
+			# overkill, but it should prevent us from colliding
+			# with the escape values by accident.
+			$cur_token->[1] =~  s! \* !$g_escape_table{'*'}!gx;
+			$cur_token->[1] =~  s! _  !$g_escape_table{'_'}!gx;
+			$text .= $cur_token->[1];
+		} else {
+			my $t = $cur_token->[1];
+			$t = _EncodeBackslashEscapes($t);
+			$text .= $t;
+		}
+	}
+	return $text;
+}
+
+
+sub _DoAnchors {
+#
+# Turn Markdown link shortcuts into XHTML <a> tags.
+#
+	my $text = shift;
+
+	#
+	# First, handle reference-style links: [link text] [id]
+	#
+	$text =~ s{
+		(					# wrap whole match in $1
+		  \[
+		    ($g_nested_brackets)	# link text = $2
+		  \]
+
+		  [ ]?				# one optional space
+		  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+		  \[
+		    (.*?)		# id = $3
+		  \]
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $link_text   = $2;
+		my $link_id     = lc $3;
+
+		if ($link_id eq "") {
+			$link_id = lc $link_text;     # for shortcut links like [this][].
+		}
+
+		if (defined $g_urls{$link_id}) {
+			my $url = $g_urls{$link_id};
+			$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+			$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+			$result = "<a href=\"$url\"";
+			if ( defined $g_titles{$link_id} ) {
+				my $title = $g_titles{$link_id};
+				$title =~ s! \* !$g_escape_table{'*'}!gx;
+				$title =~ s!  _ !$g_escape_table{'_'}!gx;
+				$result .=  " title=\"$title\"";
+			}
+			$result .= ">$link_text</a>";
+		}
+		else {
+			$result = $whole_match;
+		}
+		$result;
+	}xsge;
+
+	#
+	# Next, inline-style links: [link text](url "optional title")
+	#
+	$text =~ s{
+		(				# wrap whole match in $1
+		  \[
+		    ($g_nested_brackets)	# link text = $2
+		  \]
+		  \(			# literal paren
+		  	[ \t]*
+			<?(.*?)>?	# href = $3
+		  	[ \t]*
+			(			# $4
+			  (['"])	# quote char = $5
+			  (.*?)		# Title = $6
+			  \5		# matching quote
+			)?			# title is optional
+		  \)
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $link_text   = $2;
+		my $url	  		= $3;
+		my $title		= $6;
+
+		$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+		$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+		$result = "<a href=\"$url\"";
+
+		if (defined $title) {
+			$title =~ s/"/&quot;/g;
+			$title =~ s! \* !$g_escape_table{'*'}!gx;
+			$title =~ s!  _ !$g_escape_table{'_'}!gx;
+			$result .=  " title=\"$title\"";
+		}
+
+		$result .= ">$link_text</a>";
+
+		$result;
+	}xsge;
+
+	return $text;
+}
+
+
+sub _DoImages {
+#
+# Turn Markdown image shortcuts into <img> tags.
+#
+	my $text = shift;
+
+	#
+	# First, handle reference-style labeled images: ![alt text][id]
+	#
+	$text =~ s{
+		(				# wrap whole match in $1
+		  !\[
+		    (.*?)		# alt text = $2
+		  \]
+
+		  [ ]?				# one optional space
+		  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+		  \[
+		    (.*?)		# id = $3
+		  \]
+
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $alt_text    = $2;
+		my $link_id     = lc $3;
+
+		if ($link_id eq "") {
+			$link_id = lc $alt_text;     # for shortcut links like ![this][].
+		}
+
+		$alt_text =~ s/"/&quot;/g;
+		if (defined $g_urls{$link_id}) {
+			my $url = $g_urls{$link_id};
+			$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+			$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+			$result = "<img src=\"$url\" alt=\"$alt_text\"";
+			if (defined $g_titles{$link_id}) {
+				my $title = $g_titles{$link_id};
+				$title =~ s! \* !$g_escape_table{'*'}!gx;
+				$title =~ s!  _ !$g_escape_table{'_'}!gx;
+				$result .=  " title=\"$title\"";
+			}
+			$result .= $g_empty_element_suffix;
+		}
+		else {
+			# If there's no such link ID, leave intact:
+			$result = $whole_match;
+		}
+
+		$result;
+	}xsge;
+
+	#
+	# Next, handle inline images:  ![alt text](url "optional title")
+	# Don't forget: encode * and _
+
+	$text =~ s{
+		(				# wrap whole match in $1
+		  !\[
+		    (.*?)		# alt text = $2
+		  \]
+		  \(			# literal paren
+		  	[ \t]*
+			<?(\S+?)>?	# src url = $3
+		  	[ \t]*
+			(			# $4
+			  (['"])	# quote char = $5
+			  (.*?)		# title = $6
+			  \5		# matching quote
+			  [ \t]*
+			)?			# title is optional
+		  \)
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $alt_text    = $2;
+		my $url	  		= $3;
+		my $title		= '';
+		if (defined($6)) {
+			$title		= $6;
+		}
+
+		$alt_text =~ s/"/&quot;/g;
+		$title    =~ s/"/&quot;/g;
+		$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+		$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+		$result = "<img src=\"$url\" alt=\"$alt_text\"";
+		if (defined $title) {
+			$title =~ s! \* !$g_escape_table{'*'}!gx;
+			$title =~ s!  _ !$g_escape_table{'_'}!gx;
+			$result .=  " title=\"$title\"";
+		}
+		$result .= $g_empty_element_suffix;
+
+		$result;
+	}xsge;
+
+	return $text;
+}
+
+
+sub _DoHeaders {
+	my $text = shift;
+
+	# Setext-style headers:
+	#	  Header 1
+	#	  ========
+	#  
+	#	  Header 2
+	#	  --------
+	#
+	$text =~ s{ ^(.+)[ \t]*\n=+[ \t]*\n+ }{
+		"<h1>"  .  _RunSpanGamut($1)  .  "</h1>\n\n";
+	}egmx;
+
+	$text =~ s{ ^(.+)[ \t]*\n-+[ \t]*\n+ }{
+		"<h2>"  .  _RunSpanGamut($1)  .  "</h2>\n\n";
+	}egmx;
+
+
+	# atx-style headers:
+	#	# Header 1
+	#	## Header 2
+	#	## Header 2 with closing hashes ##
+	#	...
+	#	###### Header 6
+	#
+	$text =~ s{
+			^(\#{1,6})	# $1 = string of #'s
+			[ \t]*
+			(.+?)		# $2 = Header text
+			[ \t]*
+			\#*			# optional closing #'s (not counted)
+			\n+
+		}{
+			my $h_level = length($1);
+			"<h$h_level>"  .  _RunSpanGamut($2)  .  "</h$h_level>\n\n";
+		}egmx;
+
+	return $text;
+}
+
+
+sub _DoLists {
+#
+# Form HTML ordered (numbered) and unordered (bulleted) lists.
+#
+	my $text = shift;
+	my $less_than_tab = $g_tab_width - 1;
+
+	# Re-usable patterns to match list item bullets and number markers:
+	my $marker_ul  = qr/[*+-]/;
+	my $marker_ol  = qr/\d+[.]/;
+	my $marker_any = qr/(?:$marker_ul|$marker_ol)/;
+
+	# Re-usable pattern to match any entirel ul or ol list:
+	my $whole_list = qr{
+		(								# $1 = whole list
+		  (								# $2
+			[ ]{0,$less_than_tab}
+			(${marker_any})				# $3 = first list item marker
+			[ \t]+
+		  )
+		  (?s:.+?)
+		  (								# $4
+			  \z
+			|
+			  \n{2,}
+			  (?=\S)
+			  (?!						# Negative lookahead for another list item marker
+				[ \t]*
+				${marker_any}[ \t]+
+			  )
+		  )
+		)
+	}mx;
+
+	# We use a different prefix before nested lists than top-level lists.
+	# See extended comment in _ProcessListItems().
+	#
+	# Note: There's a bit of duplication here. My original implementation
+	# created a scalar regex pattern as the conditional result of the test on
+	# $g_list_level, and then only ran the $text =~ s{...}{...}egmx
+	# substitution once, using the scalar as the pattern. This worked,
+	# everywhere except when running under MT on my hosting account at Pair
+	# Networks. There, this caused all rebuilds to be killed by the reaper (or
+	# perhaps they crashed, but that seems incredibly unlikely given that the
+	# same script on the same server ran fine *except* under MT. I've spent
+	# more time trying to figure out why this is happening than I'd like to
+	# admit. My only guess, backed up by the fact that this workaround works,
+	# is that Perl optimizes the substition when it can figure out that the
+	# pattern will never change, and when this optimization isn't on, we run
+	# afoul of the reaper. Thus, the slightly redundant code to that uses two
+	# static s/// patterns rather than one conditional pattern.
+
+	if ($g_list_level) {
+		$text =~ s{
+				^
+				$whole_list
+			}{
+				my $list = $1;
+				my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+				# Turn double returns into triple returns, so that we can make a
+				# paragraph for the last item in a list, if necessary:
+				$list =~ s/\n{2,}/\n\n\n/g;
+				my $result = _ProcessListItems($list, $marker_any);
+				$result = "<$list_type>\n" . $result . "</$list_type>\n";
+				$result;
+			}egmx;
+	}
+	else {
+		$text =~ s{
+				(?:(?<=\n\n)|\A\n?)
+				$whole_list
+			}{
+				my $list = $1;
+				my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+				# Turn double returns into triple returns, so that we can make a
+				# paragraph for the last item in a list, if necessary:
+				$list =~ s/\n{2,}/\n\n\n/g;
+				my $result = _ProcessListItems($list, $marker_any);
+				$result = "<$list_type>\n" . $result . "</$list_type>\n";
+				$result;
+			}egmx;
+	}
+
+
+	return $text;
+}
+
+
+sub _ProcessListItems {
+#
+#	Process the contents of a single ordered or unordered list, splitting it
+#	into individual list items.
+#
+
+	my $list_str = shift;
+	my $marker_any = shift;
+
+
+	# The $g_list_level global keeps track of when we're inside a list.
+	# Each time we enter a list, we increment it; when we leave a list,
+	# we decrement. If it's zero, we're not in a list anymore.
+	#
+	# We do this because when we're not inside a list, we want to treat
+	# something like this:
+	#
+	#		I recommend upgrading to version
+	#		8. Oops, now this line is treated
+	#		as a sub-list.
+	#
+	# As a single paragraph, despite the fact that the second line starts
+	# with a digit-period-space sequence.
+	#
+	# Whereas when we're inside a list (or sub-list), that line will be
+	# treated as the start of a sub-list. What a kludge, huh? This is
+	# an aspect of Markdown's syntax that's hard to parse perfectly
+	# without resorting to mind-reading. Perhaps the solution is to
+	# change the syntax rules such that sub-lists must start with a
+	# starting cardinal number; e.g. "1." or "a.".
+
+	$g_list_level++;
+
+	# trim trailing blank lines:
+	$list_str =~ s/\n{2,}\z/\n/;
+
+
+	$list_str =~ s{
+		(\n)?							# leading line = $1
+		(^[ \t]*)						# leading whitespace = $2
+		($marker_any) [ \t]+			# list marker = $3
+		((?s:.+?)						# list item text   = $4
+		(\n{1,2}))
+		(?= \n* (\z | \2 ($marker_any) [ \t]+))
+	}{
+		my $item = $4;
+		my $leading_line = $1;
+		my $leading_space = $2;
+
+		if ($leading_line or ($item =~ m/\n{2,}/)) {
+			$item = _RunBlockGamut(_Outdent($item));
+		}
+		else {
+			# Recursion for sub-lists:
+			$item = _DoLists(_Outdent($item));
+			chomp $item;
+			$item = _RunSpanGamut($item);
+		}
+
+		"<li>" . $item . "</li>\n";
+	}egmx;
+
+	$g_list_level--;
+	return $list_str;
+}
+
+
+
+sub _DoCodeBlocks {
+#
+#	Process Markdown `<pre><code>` blocks.
+#	
+
+	my $text = shift;
+
+	$text =~ s{
+			(?:\n\n|\A)
+			(	            # $1 = the code block -- one or more lines, starting with a space/tab
+			  (?:
+			    (?:[ ]{$g_tab_width} | \t)  # Lines must start with a tab or a tab-width of spaces
+			    .*\n+
+			  )+
+			)
+			((?=^[ ]{0,$g_tab_width}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
+		}{
+			my $codeblock = $1;
+			my $result; # return value
+
+			$codeblock = _EncodeCode(_Outdent($codeblock));
+			$codeblock = _Detab($codeblock);
+			$codeblock =~ s/\A\n+//; # trim leading newlines
+			$codeblock =~ s/\s+\z//; # trim trailing whitespace
+
+			$result = "\n\n<pre><code>" . $codeblock . "\n</code></pre>\n\n";
+
+			$result;
+		}egmx;
+
+	return $text;
+}
+
+
+sub _DoCodeSpans {
+#
+# 	*	Backtick quotes are used for <code></code> spans.
+# 
+# 	*	You can use multiple backticks as the delimiters if you want to
+# 		include literal backticks in the code span. So, this input:
+#     
+#         Just type ``foo `bar` baz`` at the prompt.
+#     
+#     	Will translate to:
+#     
+#         <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
+#     
+#		There's no arbitrary limit to the number of backticks you
+#		can use as delimters. If you need three consecutive backticks
+#		in your code, use four for delimiters, etc.
+#
+#	*	You can use spaces to get literal backticks at the edges:
+#     
+#         ... type `` `bar` `` ...
+#     
+#     	Turns to:
+#     
+#         ... type <code>`bar`</code> ...
+#
+
+	my $text = shift;
+
+	$text =~ s@
+			(`+)		# $1 = Opening run of `
+			(.+?)		# $2 = The code block
+			(?<!`)
+			\1			# Matching closer
+			(?!`)
+		@
+ 			my $c = "$2";
+ 			$c =~ s/^[ \t]*//g; # leading whitespace
+ 			$c =~ s/[ \t]*$//g; # trailing whitespace
+ 			$c = _EncodeCode($c);
+			"<code>$c</code>";
+		@egsx;
+
+	return $text;
+}
+
+
+sub _EncodeCode {
+#
+# Encode/escape certain characters inside Markdown code runs.
+# The point is that in code, these characters are literals,
+# and lose their special Markdown meanings.
+#
+    local $_ = shift;
+
+	# Encode all ampersands; HTML entities are not
+	# entities within a Markdown code span.
+	s/&/&amp;/g;
+
+	# Encode $'s, but only if we're running under Blosxom.
+	# (Blosxom interpolates Perl variables in article bodies.)
+	{
+		no warnings 'once';
+    	if (defined($blosxom::version)) {
+    		s/\$/&#036;/g;	
+    	}
+    }
+
+
+	# Do the angle bracket song and dance:
+	s! <  !&lt;!gx;
+	s! >  !&gt;!gx;
+
+	# Now, escape characters that are magic in Markdown:
+	s! \* !$g_escape_table{'*'}!gx;
+	s! _  !$g_escape_table{'_'}!gx;
+	s! {  !$g_escape_table{'{'}!gx;
+	s! }  !$g_escape_table{'}'}!gx;
+	s! \[ !$g_escape_table{'['}!gx;
+	s! \] !$g_escape_table{']'}!gx;
+	s! \\ !$g_escape_table{'\\'}!gx;
+
+	return $_;
+}
+
+
+sub _DoItalicsAndBold {
+	my $text = shift;
+
+	# <strong> must go first:
+	$text =~ s{ (\*\*|__) (?=\S) (.+?[*_]*) (?<=\S) \1 }
+		{<strong>$2</strong>}gsx;
+
+	$text =~ s{ (\*|_) (?=\S) (.+?) (?<=\S) \1 }
+		{<em>$2</em>}gsx;
+
+	return $text;
+}
+
+
+sub _DoBlockQuotes {
+	my $text = shift;
+
+	$text =~ s{
+		  (								# Wrap whole match in $1
+			(
+			  ^[ \t]*>[ \t]?			# '>' at the start of a line
+			    .+\n					# rest of the first line
+			  (.+\n)*					# subsequent consecutive lines
+			  \n*						# blanks
+			)+
+		  )
+		}{
+			my $bq = $1;
+			$bq =~ s/^[ \t]*>[ \t]?//gm;	# trim one level of quoting
+			$bq =~ s/^[ \t]+$//mg;			# trim whitespace-only lines
+			$bq = _RunBlockGamut($bq);		# recurse
+
+			$bq =~ s/^/  /g;
+			# These leading spaces screw with <pre> content, so we need to fix that:
+			$bq =~ s{
+					(\s*<pre>.+?</pre>)
+				}{
+					my $pre = $1;
+					$pre =~ s/^  //mg;
+					$pre;
+				}egsx;
+
+			"<blockquote>\n$bq\n</blockquote>\n\n";
+		}egmx;
+
+
+	return $text;
+}
+
+
+sub _FormParagraphs {
+#
+#	Params:
+#		$text - string to process with html <p> tags
+#
+	my $text = shift;
+
+	# Strip leading and trailing lines:
+	$text =~ s/\A\n+//;
+	$text =~ s/\n+\z//;
+
+	my @grafs = split(/\n{2,}/, $text);
+
+	#
+	# Wrap <p> tags.
+	#
+	foreach (@grafs) {
+		unless (defined( $g_html_blocks{$_} )) {
+			$_ = _RunSpanGamut($_);
+			s/^([ \t]*)/<p>/;
+			$_ .= "</p>";
+		}
+	}
+
+	#
+	# Unhashify HTML blocks
+	#
+	foreach (@grafs) {
+		if (defined( $g_html_blocks{$_} )) {
+			$_ = $g_html_blocks{$_};
+		}
+	}
+
+	return join "\n\n", @grafs;
+}
+
+
+sub _EncodeAmpsAndAngles {
+# Smart processing for ampersands and angle brackets that need to be encoded.
+
+	my $text = shift;
+
+	# Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
+	#   http://bumppo.net/projects/amputator/
+ 	$text =~ s/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/&amp;/g;
+
+	# Encode naked <'s
+ 	$text =~ s{<(?![a-z/?\$!])}{&lt;}gi;
+
+	return $text;
+}
+
+
+sub _EncodeBackslashEscapes {
+#
+#   Parameter:  String.
+#   Returns:    The string, with after processing the following backslash
+#               escape sequences.
+#
+    local $_ = shift;
+
+    s! \\\\  !$g_escape_table{'\\'}!gx;		# Must process escaped backslashes first.
+    s! \\`   !$g_escape_table{'`'}!gx;
+    s! \\\*  !$g_escape_table{'*'}!gx;
+    s! \\_   !$g_escape_table{'_'}!gx;
+    s! \\\{  !$g_escape_table{'{'}!gx;
+    s! \\\}  !$g_escape_table{'}'}!gx;
+    s! \\\[  !$g_escape_table{'['}!gx;
+    s! \\\]  !$g_escape_table{']'}!gx;
+    s! \\\(  !$g_escape_table{'('}!gx;
+    s! \\\)  !$g_escape_table{')'}!gx;
+    s! \\>   !$g_escape_table{'>'}!gx;
+    s! \\\#  !$g_escape_table{'#'}!gx;
+    s! \\\+  !$g_escape_table{'+'}!gx;
+    s! \\\-  !$g_escape_table{'-'}!gx;
+    s! \\\.  !$g_escape_table{'.'}!gx;
+    s{ \\!  }{$g_escape_table{'!'}}gx;
+
+    return $_;
+}
+
+
+sub _DoAutoLinks {
+	my $text = shift;
+
+	$text =~ s{<((https?|ftp):[^'">\s]+)>}{<a href="$1">$1</a>}gi;
+
+	# Email addresses: <address@domain.foo>
+	$text =~ s{
+		<
+        (?:mailto:)?
+		(
+			[-.\w]+
+			\@
+			[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+		)
+		>
+	}{
+		_EncodeEmailAddress( _UnescapeSpecialChars($1) );
+	}egix;
+
+	return $text;
+}
+
+
+sub _EncodeEmailAddress {
+#
+#	Input: an email address, e.g. "foo@example.com"
+#
+#	Output: the email address as a mailto link, with each character
+#		of the address encoded as either a decimal or hex entity, in
+#		the hopes of foiling most address harvesting spam bots. E.g.:
+#
+#	  <a href="&#x6D;&#97;&#105;&#108;&#x74;&#111;:&#102;&#111;&#111;&#64;&#101;
+#       x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;">&#102;&#111;&#111;
+#       &#64;&#101;x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;</a>
+#
+#	Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+#	mailing list: <http://tinyurl.com/yu7ue>
+#
+
+	my $addr = shift;
+
+	srand;
+	my @encode = (
+		sub { '&#' .                 ord(shift)   . ';' },
+		sub { '&#x' . sprintf( "%X", ord(shift) ) . ';' },
+		sub {                            shift          },
+	);
+
+	$addr = "mailto:" . $addr;
+
+	$addr =~ s{(.)}{
+		my $char = $1;
+		if ( $char eq '@' ) {
+			# this *must* be encoded. I insist.
+			$char = $encode[int rand 1]->($char);
+		} elsif ( $char ne ':' ) {
+			# leave ':' alone (to spot mailto: later)
+			my $r = rand;
+			# roughly 10% raw, 45% hex, 45% dec
+			$char = (
+				$r > .9   ?  $encode[2]->($char)  :
+				$r < .45  ?  $encode[1]->($char)  :
+							 $encode[0]->($char)
+			);
+		}
+		$char;
+	}gex;
+
+	$addr = qq{<a href="$addr">$addr</a>};
+	$addr =~ s{">.+?:}{">}; # strip the mailto: from the visible part
+
+	return $addr;
+}
+
+
+sub _UnescapeSpecialChars {
+#
+# Swap back in all the special characters we've hidden.
+#
+	my $text = shift;
+
+	while( my($char, $hash) = each(%g_escape_table) ) {
+		$text =~ s/$hash/$char/g;
+	}
+    return $text;
+}
+
+
+sub _TokenizeHTML {
+#
+#   Parameter:  String containing HTML markup.
+#   Returns:    Reference to an array of the tokens comprising the input
+#               string. Each token is either a tag (possibly with nested,
+#               tags contained therein, such as <a href="<MTFoo>">, or a
+#               run of text between tags. Each element of the array is a
+#               two-element array; the first is either 'tag' or 'text';
+#               the second is the actual value.
+#
+#
+#   Derived from the _tokenize() subroutine from Brad Choate's MTRegex plugin.
+#       <http://www.bradchoate.com/past/mtregex.php>
+#
+
+    my $str = shift;
+    my $pos = 0;
+    my $len = length $str;
+    my @tokens;
+
+    my $depth = 6;
+    my $nested_tags = join('|', ('(?:<[a-z/!$](?:[^<>]') x $depth) . (')*>)' x  $depth);
+    my $match = qr/(?s: <! ( -- .*? -- \s* )+ > ) |  # comment
+                   (?s: <\? .*? \?> ) |              # processing instruction
+                   $nested_tags/ix;                   # nested tags
+
+    while ($str =~ m/($match)/g) {
+        my $whole_tag = $1;
+        my $sec_start = pos $str;
+        my $tag_start = $sec_start - length $whole_tag;
+        if ($pos < $tag_start) {
+            push @tokens, ['text', substr($str, $pos, $tag_start - $pos)];
+        }
+        push @tokens, ['tag', $whole_tag];
+        $pos = pos $str;
+    }
+    push @tokens, ['text', substr($str, $pos, $len - $pos)] if $pos < $len;
+    \@tokens;
+}
+
+
+sub _Outdent {
+#
+# Remove one level of line-leading tabs or spaces
+#
+	my $text = shift;
+
+	$text =~ s/^(\t|[ ]{1,$g_tab_width})//gm;
+	return $text;
+}
+
+
+sub _Detab {
+#
+# Cribbed from a post by Bart Lateur:
+# <http://www.nntp.perl.org/group/perl.macperl.anyperl/154>
+#
+	my $text = shift;
+
+	$text =~ s{(.*?)\t}{$1.(' ' x ($g_tab_width - length($1) % $g_tab_width))}ge;
+	return $text;
+}
+
+
+1;
+
+__END__
+
+
+=pod
+
+=head1 NAME
+
+B<Markdown>
+
+
+=head1 SYNOPSIS
+
+B<Markdown.pl> [ B<--html4tags> ] [ B<--version> ] [ B<-shortversion> ]
+    [ I<file> ... ]
+
+
+=head1 DESCRIPTION
+
+Markdown is a text-to-HTML filter; it translates an easy-to-read /
+easy-to-write structured text format into HTML. Markdown's text format
+is most similar to that of plain text email, and supports features such
+as headers, *emphasis*, code blocks, blockquotes, and links.
+
+Markdown's syntax is designed not as a generic markup language, but
+specifically to serve as a front-end to (X)HTML. You can  use span-level
+HTML tags anywhere in a Markdown document, and you can use block level
+HTML tags (like <div> and <table> as well).
+
+For more information about Markdown's syntax, see:
+
+    http://daringfireball.net/projects/markdown/
+
+
+=head1 OPTIONS
+
+Use "--" to end switch parsing. For example, to open a file named "-z", use:
+
+	Markdown.pl -- -z
+
+=over 4
+
+
+=item B<--html4tags>
+
+Use HTML 4 style for empty element tags, e.g.:
+
+    <br>
+
+instead of Markdown's default XHTML style tags, e.g.:
+
+    <br />
+
+
+=item B<-v>, B<--version>
+
+Display Markdown's version number and copyright information.
+
+
+=item B<-s>, B<--shortversion>
+
+Display the short-form version number.
+
+
+=back
+
+
+
+=head1 BUGS
+
+To file bug reports or feature requests (other than topics listed in the
+Caveats section above) please send email to:
+
+    support@daringfireball.net
+
+Please include with your report: (1) the example input; (2) the output
+you expected; (3) the output Markdown actually produced.
+
+
+=head1 VERSION HISTORY
+
+See the readme file for detailed release notes for this version.
+
+1.0.1 - 14 Dec 2004
+
+1.0 - 28 Aug 2004
+
+
+=head1 AUTHOR
+
+    John Gruber
+    http://daringfireball.net
+
+    PHP port and other contributions by Michel Fortin
+    http://michelf.com
+
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (c) 2003-2004 John Gruber   
+<http://daringfireball.net/>   
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+
+* Neither the name "Markdown" nor the names of its contributors may
+  be used to endorse or promote products derived from this software
+  without specific prior written permission.
+
+This software is provided by the copyright holders and contributors "as
+is" and any express or implied warranties, including, but not limited
+to, the implied warranties of merchantability and fitness for a
+particular purpose are disclaimed. In no event shall the copyright owner
+or contributors be liable for any direct, indirect, incidental, special,
+exemplary, or consequential damages (including, but not limited to,
+procurement of substitute goods or services; loss of use, data, or
+profits; or business interruption) however caused and on any theory of
+liability, whether in contract, strict liability, or tort (including
+negligence or otherwise) arising in any way out of the use of this
+software, even if advised of the possibility of such damage.
+
+=cut
diff --git a/bin/contrib/md2html.awk b/bin/contrib/md2html.awk
new file mode 100755
index 0000000..81d1241
--- /dev/null
+++ b/bin/contrib/md2html.awk
@@ -0,0 +1,427 @@
+#!/bin/awk -f
+#
+# by: Jesus Galan (yiyus) 2009
+#
+# Usage: md2html.awk file.md > file.html
+# See: http://4l77.com/src/md2html.awk
+
+function eschtml(t) {
+	gsub("&", "\\&amp;", t);
+	gsub("<", "\\&lt;", t);
+	return t;
+}
+
+function oprint(t){
+	if(nr == 0)
+		print t;
+	else
+		otext = otext "\n" t;
+}
+
+function subref(id){
+	for(; nr > 0 && sub("<<" id, ref[id], otext); nr--);
+	if(nr == 0 && otext) {
+		print otext;
+		otext = "";
+	}
+}
+
+function nextil(t) {
+	if(!match(t, /[`<&\[*_\\-]|(\!\[)/))
+		return t;
+	t1 = substr(t, 1, RSTART - 1);
+	tag = substr(t, RSTART, RLENGTH);
+	t2 = substr(t, RSTART + RLENGTH);
+	if(ilcode && tag != "`")
+		return eschtml(t1 tag) nextil(t2);
+	# Backslash escaping
+	if(tag == "\\"){
+		if(match(t2, /^[\\`*_{}\[\]()#+\-\.!]/)){
+			tag = substr(t2, 1, 1);
+			t2 = substr(t2, 2);
+		}
+		return t1 tag nextil(t2);
+	}
+	# Dashes
+	if(tag == "-"){
+		if(sub(/^-/, "", t2))
+			tag = "&#8212;";
+		return t1 tag nextil(t2);
+	}
+	# Inline Code
+	if(tag == "`"){
+		if(sub(/^`/, "", t2)){
+			if(!match(t2, /``/))
+				return t1 "&#8221;" nextil(t2);
+			ilcode2 = !ilcode2;
+		}
+		else if(ilcode2)
+			return t1 tag nextil(t2);
+		tag = "<code>";
+		if(ilcode){
+			t1 = eschtml(t1);
+			tag = "</code>";
+		}
+		ilcode = !ilcode;
+		return t1 tag nextil(t2);
+	}
+	if(tag == "<"){
+	# Autolinks
+		if(match(t2, /^[^ 	]+[\.@][^ 	]+>/)){
+			url = eschtml(substr(t2, 1, RLENGTH - 1));
+			t2 = substr(t2, RLENGTH + 1);
+			linktext = url;
+			if(match(url, /@/) && !match(url, /^mailto:/))
+				url = "mailto:" url;
+			return t1 "<a href=\"" url "\">" linktext "</a>" nextil(t2);
+		}
+	# Html tags
+		if(match(t2, /^[A-Za-z\/!][^>]*>/)){
+			tag = tag substr(t2, RSTART, RLENGTH);
+			t2 = substr(t2, RLENGTH + 1);
+			return t1 tag nextil(t2);
+		}
+		return t1 "&lt;" nextil(t2);
+	}
+	# Html special entities
+	if(tag == "&"){
+		if(match(t2, /^#?[A-Za-z0-9]+;/)){
+			tag = tag substr(t2, RSTART, RLENGTH);
+			t2 = substr(t2, RLENGTH + 1);
+			return t1 tag nextil(t2);
+		}
+		return t1 "&amp;" nextil(t2);
+	}
+	# Images
+	if(tag == "!["){
+		if(!match(t2, /(\[.*\])|(\(.*\))/))
+			return t1 tag nextil(t2);
+		match(t2, /^[^\]]*/);
+		alt = substr(t2, 1, RLENGTH);
+		t2 = substr(t2, RLENGTH + 2);
+		if(match(t2, /^\(/)){
+			# Inline
+			sub(/^\(/, "", t2);
+			match(t2, /^[^\)]+/);
+			url = eschtml(substr(t2, 1, RLENGTH));
+			t2 = substr(t2, RLENGTH + 2);
+			title = "";
+			if(match(url, /[ 	]+\".*\"[ 	]*$/)) {
+				title = substr(url, RSTART, RLENGTH);
+				url = substr(url, 1, RSTART - 1);
+				match(title, /\".*\"/);
+				title = " title=\"" substr(title, RSTART + 1, RLENGTH - 2) "\"";
+			}
+			if(match(url, /^<.*>$/))
+				url = substr(url, 2, RLENGTH - 2);
+			return t1 "<img src=\"" url "\" alt=\"" alt "\"" title " />" nextil(t2);
+		}
+		else{
+			# Referenced
+			sub(/^ ?\[/, "", t2);
+			id = alt;
+			if(match(t2, /^[^\]]+/))
+				id = substr(t2, 1, RLENGTH);
+			t2 = substr(t2, RLENGTH + 2);
+			if(ref[id])
+				r = ref[id];
+			else{
+				r = "<<" id;
+				nr++;
+			}
+			return t1 "<img src=\"" r "\" alt=\"" alt "\" />" nextil(t2);
+		}
+	}
+	# Links
+	if(tag == "["){
+		if(!match(t2, /(\[.*\])|(\(.*\))/))
+			return t1 tag nextil(t2);
+		match(t2, /^[^\]]*(\[[^\]]*\][^\]]*)*/);
+		linktext = substr(t2, 1, RLENGTH);
+		t2 = substr(t2, RLENGTH + 2);
+		if(match(t2, /^\(/)){
+			# Inline
+			match(t2, /^[^\)]+(\([^\)]+\)[^\)]*)*/);
+			url = substr(t2, 2, RLENGTH - 1);
+			pt2 = substr(t2, RLENGTH + 2);
+			title = "";
+			if(match(url, /[ 	]+\".*\"[ 	]*$/)) {
+				title = substr(url, RSTART, RLENGTH);
+				url = substr(url, 1, RSTART - 1);
+				match(title, /\".*\"/);
+				title = " title=\"" substr(title, RSTART + 1, RLENGTH - 2) "\"";
+			}
+			if(match(url, /^<.*>$/))
+				url = substr(url, 2, RLENGTH - 2);
+			url = eschtml(url);
+			return t1 "<a href=\"" url "\"" title ">" nextil(linktext) "</a>" nextil(pt2);
+		}
+		else{
+			# Referenced
+			sub(/^ ?\[/, "", t2);
+			id = linktext;
+			if(match(t2, /^[^\]]+/))
+				id = substr(t2, 1, RLENGTH);
+			t2 = substr(t2, RLENGTH + 2);
+			if(ref[id])
+				r = ref[id];
+			else{
+				r = "<<" id;
+				nr++;
+			}
+			pt2 = t2;
+			return t1 "<a href=\"" r "\" />" nextil(linktext) "</a>" nextil(pt2);
+		}
+	}
+	# Emphasis
+	if(match(tag, /[*_]/)){
+		ntag = tag;
+		if(sub("^" tag, "", t2)){
+			if(stag[ns] == tag && match(t2, "^" tag))
+				t2 = tag t2;
+			else
+				ntag = tag tag
+		}
+		n = length(ntag);
+		tag = (n == 2) ? "strong" : "em";
+		if(match(t1, / $/) && match(t2, /^ /))
+			return t1 tag nextil(t2);
+		if(stag[ns] == ntag){
+			tag = "/" tag;
+			ns--;
+		}
+		else
+			stag[++ns] = ntag;
+		tag = "<" tag ">";
+		return t1 tag nextil(t2);
+	}
+}
+
+function inline(t) {
+	ilcode = 0;
+	ilcode2 = 0;
+	ns = 0;
+	
+	return nextil(t);
+}
+
+function printp(tag) {
+	if(!match(text, /^[ 	]*$/)){
+		text = inline(text);
+		if(tag != "")
+			oprint("<" tag ">" text "</" tag ">");
+		else
+			oprint(text);
+	}
+	text = "";
+}
+
+BEGIN {
+	blank = 0;
+	code = 0;
+	hr = 0;
+	html = 0;
+	nl = 0;
+	nr = 0;
+	otext = "";
+	text = "";
+	par = "p";
+}
+
+# References
+!code && /^ *\[[^\]]*\]:[ 	]+/ {
+	sub(/^ *\[/, "");
+	match($0, /\]/);
+	id = substr($0, 1, RSTART - 1);
+	sub(id "\\]:[ 	]+", "");
+	title = "";
+	if(match($0, /\".*\"$/))
+		title = "\" title=\"" substr($0, RSTART + 1, RLENGTH - 2);
+	sub(/[ 	]+\".*\"$/, "");
+	url = eschtml($0);
+	ref[id] = url title;
+
+	subref(id);
+	next;
+}
+
+# html
+!html && /^<(address|blockquote|center|dir|div|dl|fieldset|form|h[1-6r]|\
+isindex|menu|noframes|noscript|ol|p|pre|table|ul|!--)/ {
+	if(code)
+		oprint("</pre></code>");
+	for(; !text && block[nl] == "blockquote"; nl--)
+		oprint("</blockquote>");
+	match($0, /^<(address|blockquote|center|dir|div|dl|fieldset|form|h[1-6r]|\
+	isindex|menu|noframes|noscript|ol|p|pre|table|ul|!--)/);
+	htag = substr($0, 2, RLENGTH - 1);
+	if(!match($0, "(<\\/" htag ">)|((^<hr ?\\/?)|(--)>$)"))
+		html = 1;
+	if(html && match($0, /^<hr/))
+		hr = 1;
+	oprint($0);
+	next;
+}
+
+html && (/(^<\/(address|blockquote|center|dir|div|dl|fieldset|form|h[1-6r]|\
+isindex|menu|noframes|noscript|ol|p|pre|table|ul).*)|(--)>$/ ||
+(hr && />$/)) {
+	html = 0;
+	hr = 0;
+	oprint($0);
+	next;
+}
+
+html {
+	oprint($0);
+	next;
+}
+
+# List and quote blocks
+
+#   Remove indentation
+{
+	for(nnl = 0; nnl < nl; nnl++)
+		if((match(block[nnl + 1], /[ou]l/) && !sub(/^(    |	)/, "")) || \
+		(block[nnl + 1] == "blockquote" && !sub(/^> ?/, "")))
+			break;
+}
+nnl < nl && !blank && text && ! /^ ? ? ?([*+-]|([0-9]+\.)+)( +|	)/ { nnl = nl; }
+#   Quote blocks
+{ 
+	while(sub(/^> /, ""))
+		nblock[++nnl] = "blockquote";
+}
+#   Horizontal rules
+{ hr = 0; }
+(blank || (!text && !code)) && /^ ? ? ?([-*_][ 	]*)([-*_][ 	]*)([-*_][ 	]*)+$/ {
+	if(code){
+		oprint("</pre></code>");
+		code = 0;
+	}
+	blank = 0;
+	nnl = 0;
+	hr = 1;
+}
+#   List items
+block[nl] ~ /[ou]l/ && /^$/ {
+	blank = 1;
+	next;
+}
+{ newli = 0; }
+!hr && (nnl != nl || !text || block[nl] ~ /[ou]l/) && /^ ? ? ?[*+-]( +|	)/ {
+	sub(/^ ? ? ?[*+-]( +|	)/, "");
+	nnl++;
+	nblock[nnl] = "ul";
+	newli = 1;
+}
+(nnl != nl || !text || block[nl] ~ /[ou]l/) && /^ ? ? ?([0-9]+\.)+( +|	)/ {
+	sub(/^ ? ? ?([0-9]+\.)+( +|	)/, "");
+	nnl++;
+	nblock[nnl] = "ol";
+	newli = 1;
+}
+newli { 
+	if(blank && nnl == nl && !par)
+		par = "p";
+	blank = 0;
+	printp(par);
+	if(nnl == nl && block[nl] == nblock[nl])
+		oprint("</li><li>");
+}
+blank && ! /^$/ {
+	if(match(block[nnl], /[ou]l/) && !par)
+		par = "p";
+	printp(par);
+	par = "p";
+	blank = 0;
+}
+		
+# Close old blocks and open new ones
+nnl != nl || nblock[nl] != block[nl] {
+	if(code){
+		oprint("</pre></code>");
+		code = 0;
+	}
+	printp(par);
+	b = (nnl > nl) ? nblock[nnl] : block[nnl];
+	par = (match(b, /[ou]l/)) ? "" : "p";
+}
+nnl < nl || (nnl == nl && nblock[nl] != block[nl]) {
+	for(; nl > nnl || (nnl == nl && pblock[nl] != block[nl]); nl--){
+		if(match(block[nl], /[ou]l/))
+			oprint("</li>");
+		oprint("</" block[nl] ">");
+	}
+}
+nnl > nl {
+	for(; nl < nnl; nl++){
+		block[nl + 1] = nblock[nl + 1];
+		oprint("<" block[nl + 1] ">");
+		if(match(block[nl + 1], /[ou]l/))
+			oprint("<li>");
+	}
+}
+hr {
+	oprint("<hr>");
+	next;
+}
+
+# Code blocks
+code && /^$/ { 
+	if(blanK)
+		oprint("");
+	blank = 1;
+	next;
+}
+!text && sub(/^(	|    )/, "") {
+	if(blanK)
+		oprint("");
+	blank = 0;
+	if(!code)
+		oprint("<code><pre>");
+	code = 1;
+	$0 = eschtml($0);
+	oprint($0);
+	next;
+}
+code {
+	oprint("</pre></code>");
+	code = 0;
+}
+
+# Setex-style Headers
+text && /^=+$/ {printp("h1"); next;}
+text && /^-+$/ {printp("h2"); next;} 
+
+# Atx-Style headers
+/^#+/ && (!newli || par=="p" || /^##/) {
+	for(n = 0; n < 6 && sub(/^# */, ""); n++)
+		sub(/#$/, "");
+	par = "h" n;
+}
+
+# Paragraph	
+/^$/ {
+	printp(par);
+	par = "p";
+	next;
+}
+
+# Add text
+{ text = (text ? text " " : "") $0; }
+
+END {
+	if(code){
+		oprint("</pre></code>");
+		code = 0;
+	}
+	printp(par);
+	for(; nl > 0; nl--){
+		if(match(block[nl], /[ou]l/))
+			oprint("</li>");
+		oprint("</" block[nl] ">");
+	}
+	gsub(/<<[^\"]*/, "", otext);
+	print(otext);
+}
diff --git a/bin/contrib/rc-httpd/handlers/authorize b/bin/contrib/rc-httpd/handlers/authorize
new file mode 100755
index 0000000..ea4db3e
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/authorize
@@ -0,0 +1,6 @@
+#!/bin/rc
+if(~ $REMOTE_USER ''){
+	extra_headers=($extra_headers 'WWW-Authenticate: Basic realm="'$"SERVER_NAME'"')
+	error 401
+	exit
+}
diff --git a/bin/contrib/rc-httpd/handlers/cgi b/bin/contrib/rc-httpd/handlers/cgi
new file mode 100755
index 0000000..2c9a9b9
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/cgi
@@ -0,0 +1,46 @@
+#!/bin/rc
+fn filter_headers{
+	response=(200 OK)
+	lines=''
+	done=false
+	while(~ $done false){
+		line=`{getline}
+		head=`{echo $line | awk '{print tolower($1)}'}
+		if(~ $head status:*)
+			response=`{echo $line | awk '{$1="" ; print}'}
+		if not if(~ $line '')
+			done=true
+		if not
+			lines=$"lines^$"line^$cr^'
+'
+	}
+	echo 'HTTP/1.1' $"response^$cr
+	echo -n $"lines
+	do_log $response(1)
+}
+
+fn run_cgi {
+	path=$cgi_path exec $"cgi_bin $params || echo 'Status: 500'
+}
+
+cgi_bin=$1
+cgi_dir=.
+if(! ~ $#* 1)
+	cgi_dir=$*($#*)
+if not if(~ $"cgi_bin /*){
+	cgi_dir=`{basename -d $"cgi_bin}
+	cgi_dir=$"cgi_dir
+}
+if(! ~ $"cgi_bin */*)
+	cgi_bin=./$"cgi_bin
+if(! builtin cd $"cgi_dir >[2]/dev/null || ! test -x $"cgi_bin){
+	error 500
+	exit
+}
+
+run_cgi | {
+	filter_headers
+	emit_extra_headers
+	echo $cr
+	exec cat
+}
diff --git a/bin/contrib/rc-httpd/handlers/dir-index b/bin/contrib/rc-httpd/handlers/dir-index
new file mode 100755
index 0000000..00ff8ce
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/dir-index
@@ -0,0 +1,111 @@
+#!/bin/rc
+PATH_INFO=`{echo $PATH_INFO | urldecode.awk}
+full_path=$"FS_ROOT^$"PATH_INFO
+full_path=$"full_path
+if(! test -d $full_path){
+	error 404
+	exit
+}
+if(! test -r $full_path -x $full_path){
+	error 503
+	exit
+}
+do_log 200
+builtin cd $full_path
+if(~ $"NOINDEXFILE ^ $"NOINDEX ''){
+	ifile=index.htm*
+	if(! ~ $ifile(1) *'*'){
+		PATH_INFO=$ifile(1)
+		FS_ROOT=''
+		exec serve-static
+	}
+}
+title=`{echo $SITE_TITLE | sed s,%s,^$"PATH_INFO^,}
+title=$"title
+lso=()
+switch($2){
+case size
+	# ls has no option to sort by size
+	# could pipe it through sort, I suppose
+case date
+	lso=-t
+}
+echo 'HTTP/1.1 200 OK'^$cr
+emit_extra_headers
+echo 'Content-type: text/html'^$cr
+echo $cr
+echo '<html>
+<head>
+<title>'^$title^'</title>
+<style type="text/css">
+	.size {
+		text-align: right;
+		padding-right: 4pt;
+	}
+	.day {
+		text-align: right;
+		padding-right: 3pt;
+	}
+	.datetime {
+		text-align: right;
+	}
+	.name {
+		text-align: right;
+		padding-left: 3pt;
+	}
+</style>
+</head>
+<body>'
+echo '<h1>'^$title^'</h1>'
+if(! ~ $PATH_INFO /)
+	echo '<a href="../">Parent directory</a>'
+echo '<table>'
+ls -lQ $lso | awk '
+function urlencode(loc){
+	# very minimal encoding, just enough for our static-file purposes
+	url=loc
+	gsub("%", "%25", url)		# this one first!
+	gsub("\\$", "%24", url)
+	gsub("&", "%26", url)
+	gsub("\\+", "%2B", url)
+	gsub("\\?", "%3F", url)
+	gsub(" ", "%20", url)
+	gsub("\"", "%22", url)
+	gsub("#", "%23", url)
+	return url
+}
+function hrsize(size){
+	if(size > 1073741824) return sprintf("%.1fGB", size/1073741824)
+	if(size > 10485760) return sprintf("%iMB", size/1048576)
+	if(size > 1048576) return sprintf("%.1fMB", size/1048576)
+	if(size > 10240) return sprintf("%iKB", size/1024)
+	if(size > 1024) return sprintf("%.1fKB", size/1024)
+	return sprintf("%iB", size)
+}
+/^(-|a)/ {
+	print "<tr>"
+	print "<td class=\"size\">"hrsize($6)"</td>"
+	print "<td class=\"month\">"$7"</td>"
+	print "<td class=\"day\">"$8"</td>"
+	print "<td class=\"datetime\">"$9"</td>"
+	$1="" ; $2="" ; $3="" ; $4="" ; $5="" ; $6="" ; $7="" ; $8="" ; $9=""
+	sub("^ *?", "")
+	print "<td><a class=\"file name\" href=\""urlencode($0)"\">"$0"</a></td>"
+	print "</tr>"
+	$0=""
+}
+/^d/ {
+	print "<tr>"
+	print "<td class=\"size\"> </td>"
+	print "<td class=\"month\">"$7"</td>"
+	print "<td class=\"day\">"$8"</td>"
+	print "<td class=\"datetime\">"$9"</td>"
+	$1="" ; $2="" ; $3="" ; $4="" ; $5="" ; $6="" ; $7="" ; $8="" ; $9=""
+	sub("^ *?", "")
+	print "<td><a class=\"dir name\" href=\""urlencode($0)"/\">"$0"/</a></td>"
+	print "</tr>"
+}'
+echo '</table>
+
+</body>
+</html>'
diff --git a/bin/contrib/rc-httpd/handlers/error b/bin/contrib/rc-httpd/handlers/error
new file mode 100755
index 0000000..282d870
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/error
@@ -0,0 +1,43 @@
+#!/bin/rc
+# DO NOT make this script callable directly from the web!
+fn do_error{
+	echo 'HTTP/1.1 '^$1^$cr
+	emit_extra_headers
+	echo 'Content-type: text/html'^$cr
+	echo $cr
+	echo '<html>
+<head>
+<title>'^$1^'</title>
+</head>
+<body>
+<h1>'^$1^'</h1>'
+	echo $2
+	echo '<p><i>rc-httpd at' $SERVER_NAME '</i>'
+	echo '
+	</body>
+	</html>
+	'
+}
+
+fn 401{
+	do_error '401 Unauthorized' \
+	'The requested path '^$"location^' requires authorization.'
+}
+
+fn 404{
+	do_error '404 Not Found' \
+	'The requested path '^$"location^' was not found on this server.'
+}
+
+fn 500{
+	do_error '500 Internal Server Error' \
+	'The server has encountered an internal misconfiguration and is unable to satisfy your request.'
+}
+
+fn 503{
+	do_error '503 Forbidden' \
+	'You do not have permission to access '^$"location^' on this server.'
+}
+
+do_log $1
+$1
diff --git a/bin/contrib/rc-httpd/handlers/redirect b/bin/contrib/rc-httpd/handlers/redirect
new file mode 100755
index 0000000..e223091
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/redirect
@@ -0,0 +1,30 @@
+#!/bin/rc
+if(~ $#2 0){
+	error 500
+	exit
+}
+switch($1){
+case perm*
+	do_log 301
+	echo 'HTTP/1.1 301 Moved Permanently'^$cr
+case temp*
+	do_log 302
+	echo 'HTTP/1.1 302 Moved Temporarily'^$cr
+case seeother
+	do_log 303
+	echo 'HTTP/1.1 303 See Other'^$cr
+case *
+	error 500
+	exit
+}
+echo 'Location: ' ^ $2 ^ $cr
+emit_extra_headers
+echo 'Content-type: text/html'^$cr
+echo $cr
+echo '<html><body>'
+if(~ $#3 0)
+	echo 'Browser did not accept redirect.'
+if not
+	echo $3
+echo '<a href="'^$"location^'/">Click here</a>'
+echo '</body></html>'
diff --git a/bin/contrib/rc-httpd/handlers/serve-static b/bin/contrib/rc-httpd/handlers/serve-static
new file mode 100755
index 0000000..00cc70a
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/serve-static
@@ -0,0 +1,43 @@
+#!/bin/rc
+full_path=`{echo $"FS_ROOT^$"PATH_INFO | urldecode.awk}
+full_path=$"full_path
+if(~ $full_path */)
+	error 503
+if(test -d $full_path){
+	redirect perm $"location^'/' \
+		'URL not quite right, and browser did not accept redirect.'
+	exit
+}
+if(! test -e $full_path){
+	error 404
+	exit
+}
+if(! test -r $full_path){
+	error 503
+	exit
+}
+do_log 200
+switch($full_path){
+case *.html *.htm
+        type=text/html
+case *.css
+        type=text/css
+case *.txt
+        type='text/plain; charset=utf-8'
+case *.jpg *.jpeg
+        type=image/jpeg
+case *.gif
+        type=image/gif
+case *.png
+        type=image/png
+case *
+		type=`{file -m $full_path || file -i $full_path}        # GROSS
+}
+max_age=3600	# 1 hour
+echo 'HTTP/1.1 200 OK'^$cr
+emit_extra_headers
+echo 'Content-type: '^$type^'; charset=utf-8'^$cr
+echo 'Content-length: '^`{ls -l $full_path | awk '{print $6}'}
+echo 'Cache-control: max-age='^$max_age^$cr
+echo $cr
+exec cat $full_path
diff --git a/bin/contrib/rc-httpd/handlers/static-or-cgi b/bin/contrib/rc-httpd/handlers/static-or-cgi
new file mode 100755
index 0000000..4d8a2d4
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/static-or-cgi
@@ -0,0 +1,14 @@
+#!/bin/rc
+cgiargs=$*
+
+fn error{
+	if(~ $1 404)
+		exec cgi $cgiargs
+	if not
+		$rc_httpd_dir/handlers/error $1
+}
+
+if(~ $location */)
+	exec cgi $cgiargs
+if not
+	exec serve-static
diff --git a/bin/contrib/rc-httpd/handlers/static-or-index b/bin/contrib/rc-httpd/handlers/static-or-index
new file mode 100755
index 0000000..f0904f8
--- /dev/null
+++ b/bin/contrib/rc-httpd/handlers/static-or-index
@@ -0,0 +1,5 @@
+#!/bin/rc
+if(~ $PATH_INFO */)
+	exec dir-index $params
+if not
+	exec serve-static
diff --git a/bin/contrib/rc-httpd/lib/urldecode.awk b/bin/contrib/rc-httpd/lib/urldecode.awk
new file mode 100755
index 0000000..1dadd00
--- /dev/null
+++ b/bin/contrib/rc-httpd/lib/urldecode.awk
@@ -0,0 +1,39 @@
+# taken from werc
+BEGIN {
+    hextab ["0"] = 0; hextab ["8"] = 8;
+    hextab ["1"] = 1; hextab ["9"] = 9;
+    hextab ["2"] = 2; hextab ["A"] = hextab ["a"] = 10
+    hextab ["3"] = 3; hextab ["B"] = hextab ["b"] = 11;
+    hextab ["4"] = 4; hextab ["C"] = hextab ["c"] = 12;
+    hextab ["5"] = 5; hextab ["D"] = hextab ["d"] = 13;
+    hextab ["6"] = 6; hextab ["E"] = hextab ["e"] = 14;
+    hextab ["7"] = 7; hextab ["F"] = hextab ["f"] = 15;
+}
+{
+    decoded = ""
+    i = 1
+    len = length ($0)
+    while ( i <= len ) {
+        c = substr ($0, i, 1)
+        if ( c == "%" ) {
+            if ( i+2 <= len ) {
+                c1 = substr ($0, i+1, 1)
+                c2 = substr ($0, i+2, 1)
+                if ( hextab [c1] == "" || hextab [c2] == "" ) {
+                    print "WARNING: invalid hex encoding: %" c1 c2 | "cat >&2"
+                } else {
+                    code = 0 + hextab [c1] * 16 + hextab [c2] + 0
+                    c = sprintf ("%c", code)
+                    i = i + 2
+                }
+            } else {
+                print "WARNING: invalid % encoding: " substr ($0, i, len - i)
+            }
+        } else if ( c == "+" ) {
+            c = " "
+        }
+        decoded = decoded c
+        ++i
+    }
+    printf "%s", decoded
+}
diff --git a/bin/contrib/rc-httpd/rc-httpd b/bin/contrib/rc-httpd/rc-httpd
new file mode 100755
index 0000000..8e4fad9
--- /dev/null
+++ b/bin/contrib/rc-httpd/rc-httpd
@@ -0,0 +1,102 @@
+#!/bin/rc
+rc_httpd_dir=/home/sl/www/werc/bin/contrib/rc-httpd
+libdir = $rc_httpd_dir/lib
+path=($PLAN9/bin $rc_httpd_dir/handlers $PATH)
+cgi_path=$PLAN9/bin
+SERVER_PORT=80 # default for CGI scripts, may be overridden by the Host header
+extra_headers='Server: rc-httpd'
+cr=

+
+fn do_log{
+	echo `{date} :: $SERVER_NAME :: $request :: \
+	$HTTP_USER_AGENT :: $1 :: $HTTP_REFERER >[1=2]
+}
+
+fn emit_extra_headers{
+	for(header in $extra_headers)
+		echo $"header^$cr
+}
+
+fn getline{ read | sed 's/'^$"cr^'$//g' }
+
+fn terminate{
+	echo `{date} connection terminated >[1=2]
+	exit terminate
+}
+
+fn trim_input{ dd -bs 1 -count $CONTENT_LENGTH }
+
+request=`{getline}
+if(~ $#request 0)
+	terminate
+REQUEST_METHOD=$request(1)
+REQUEST_URI=$request(2)
+reqlines=''
+HTTP_COOKIE=''
+REMOTE_USER=''
+done=false
+chunked=no
+while(~ $"done false){
+	line=`{getline}
+	if(~ $#line 0)
+		done=true
+	reqlines=$"reqlines$"line'
+'
+	h=`{echo $line | awk '{print tolower($1)}'}
+	switch($h){
+	case ''
+		done=true
+	case host:
+		SERVER_NAME=$line(2)
+	case referer:
+		HTTP_REFERER=$line(2)
+	case user-agent:
+		HTTP_USER_AGENT=`{echo $line | sed 's;[^:]+:[ 	]+;;'}
+	case content-length:
+		CONTENT_LENGTH=$line(2)
+	case content-type:
+		CONTENT_TYPE=$line(2)
+	case cookie:
+		cookie=`{echo $line | sed 's;^[^:]+:[ 	]*;;'}
+		HTTP_COOKIE=$"HTTP_COOKIE^$"cookie^'; '
+	case authorization:
+		REMOTE_USER=`{auth/httpauth $line(3)}
+	case transfer-encoding:
+		~ $line(2) chunked && chunked=yes
+	}
+}
+if(~ $REQUEST_URI *://* //*){
+	SERVER_NAME=`{echo $REQUEST_URI | sed '
+		s;^[^:]+:;;
+		s;^//([^/]+).*;\1;'}
+	REQUEST_URI=`{echo $REQUEST_URI | sed '
+		s;^[^:]+:;;
+		s;^//[^/]+/?;/;'}
+}
+QUERY_STRING=`{echo $REQUEST_URI | sed 's;[^?]*\??;;'}
+params=`{echo $QUERY_STRING | sed 's;\+; ;g'}
+location=`{echo $REQUEST_URI | sed 's;\?.*;;'}
+location=`{echo $location | sed '
+	s;[^/]+/\.\./;/;g
+	s;/\./;/;g
+	s;//+;/;g
+'}
+SERVER_NAME=`{echo $SERVER_NAME | sed 's;^(\[[^\]]+\]|[^:]+)\:([0-9]+)$;\1 \2;'}
+if(~ $#SERVER_NAME 2){
+	SERVER_PORT=$SERVER_NAME(2)
+	SERVER_NAME=$SERVER_NAME(1)
+}
+if(~ $REQUEST_METHOD (PUT POST)){
+	if(! ~ $"CONTENT_LENGTH '')
+		trim_input | exec $rc_httpd_dir/select-handler
+	if not{
+		if(~ $chunked yes){
+			echo 'HTTP/1.1 411 Length required'^$cr
+			echo $cr
+			exit
+		}
+		exec $rc_httpd_dir/select-handler
+	}
+}
+if not
+	. $rc_httpd_dir/select-handler
diff --git a/bin/contrib/rc-httpd/select-handler b/bin/contrib/rc-httpd/select-handler
new file mode 100755
index 0000000..ec819d4
--- /dev/null
+++ b/bin/contrib/rc-httpd/select-handler
@@ -0,0 +1,20 @@
+#!/bin/rc
+rfork n
+
+# Route requests to werc.
+# Change paths to match your system.
+
+if(~ $SERVER_NAME 9base.werc.cat-v.org)
+	PLAN9=/usr/local/9base
+if(~ $SERVER_NAME frontbase.werc.cat-v.org)
+	PLAN9=/usr/local/plan9front
+if(~ $SERVER_NAME plan9port.werc.cat-v.org)
+	PLAN9=/usr/local/plan9
+
+if(~ $SERVER_NAME *){
+	PATH_INFO=$location
+	FS_ROOT=/home/sl/www/werc/sites/$SERVER_NAME
+	exec static-or-cgi /home/sl/www/werc/bin/werc.rc
+}
+if not
+	error 503
diff --git a/bin/contrib/tcp80 b/bin/contrib/tcp80
new file mode 100755
index 0000000..ae111a0
--- /dev/null
+++ b/bin/contrib/tcp80
@@ -0,0 +1,7 @@
+#!/bin/rc
+# For use with listen(8).
+# Change paths to match your system.
+# Eitdit rc-httpd/rc-httpd to match your system.
+PLAN9=/usr/local/plan9
+PATH=($PATH /home/sl/www/werc/bin/contrib)
+exec /home/sl/www/werc/bin/contrib/rc-httpd/rc-httpd >>[2]/var/log/rc-httpd
diff --git a/bin/contrib/urldecode.awk b/bin/contrib/urldecode.awk
new file mode 100755
index 0000000..bd791e3
--- /dev/null
+++ b/bin/contrib/urldecode.awk
@@ -0,0 +1,39 @@
+#!/bin/awk -f
+BEGIN {
+	hextab ["0"] = 0; hextab ["8"] = 8;
+	hextab ["1"] = 1; hextab ["9"] = 9;
+	hextab ["2"] = 2; hextab ["A"] = hextab ["a"] = 10
+	hextab ["3"] = 3; hextab ["B"] = hextab ["b"] = 11;
+	hextab ["4"] = 4; hextab ["C"] = hextab ["c"] = 12;
+	hextab ["5"] = 5; hextab ["D"] = hextab ["d"] = 13;
+	hextab ["6"] = 6; hextab ["E"] = hextab ["e"] = 14;
+	hextab ["7"] = 7; hextab ["F"] = hextab ["f"] = 15;
+}
+{
+	decoded = ""
+	i   = 1
+	len = length ($0)
+	while ( i <= len ) {
+		c = substr ($0, i, 1)
+		if ( c == "%" ) {
+			if ( i+2 <= len ) {
+				c1 = substr ($0, i+1, 1)
+				c2 = substr ($0, i+2, 1)
+				if ( hextab [c1] == "" || hextab [c2] == "" ) {
+					print "WARNING: invalid hex encoding: %" c1 c2 | "cat >&2"
+				} else {
+					code = 0 + hextab [c1] * 16 + hextab [c2] + 0
+					c = sprintf ("%c", code)
+					i = i + 2
+				}
+			} else {
+				print "WARNING: invalid % encoding: " substr ($0, i, len - i)
+			}
+		} else if ( c == "+" ) {
+			c = " "
+		}
+		decoded = decoded c
+		++i
+	}
+	print decoded
+}
diff --git a/bin/contrib/urlencode.awk b/bin/contrib/urlencode.awk
new file mode 100755
index 0000000..d4d354d
--- /dev/null
+++ b/bin/contrib/urlencode.awk
@@ -0,0 +1,126 @@
+# Taken from http://www.shelldorado.com/scripts/cmds/urlencode
+##########################################################################
+# Title      :  urlencode - encode URL data
+# Author     :  Heiner Steven (heiner.steven@odn.de)
+# Date       :  2000-03-15
+# Requires   :  awk
+# Categories :  File Conversion, WWW, CGI
+# SCCS-Id.   :  @(#) urlencode  1.4 06/10/29
+##########################################################################
+# Description
+#   Encode data according to
+#       RFC 1738: "Uniform Resource Locators (URL)" and
+#       RFC 1866: "Hypertext Markup Language - 2.0" (HTML)
+#
+#   This encoding is used i.e. for the MIME type
+#   "application/x-www-form-urlencoded"
+#
+# Notes
+#    o  The default behaviour is not to encode the line endings. This
+#   may not be what was intended, because the result will be
+#   multiple lines of output (which cannot be used in an URL or a
+#   HTTP "POST" request). If the desired output should be one
+#   line, use the "-l" option.
+#
+#    o  The "-l" option assumes, that the end-of-line is denoted by
+#   the character LF (ASCII 10). This is not true for Windows or
+#   Mac systems, where the end of a line is denoted by the two
+#   characters CR LF (ASCII 13 10).
+#   We use this for symmetry; data processed in the following way:
+#       cat | urlencode -l | urldecode -l
+#   should (and will) result in the original data
+#
+#    o  Large lines (or binary files) will break many AWK
+#       implementations. If you get the message
+#       awk: record `...' too long
+#        record number xxx
+#   consider using GNU AWK (gawk).
+#
+#    o  urlencode will always terminate it's output with an EOL
+#       character
+#
+# Thanks to Stefan Brozinski for pointing out a bug related to non-standard
+# locales.
+#
+# See also
+#   urldecode
+##########################################################################
+
+PN=`basename "$0"`          # Program name
+VER='1.4'
+
+: ${AWK=awk}
+
+Usage () {
+    echo >&2 "$PN - encode URL data, $VER
+usage: $PN [-l] [file ...]
+    -l:  encode line endings (result will be one line of output)
+
+The default is to encode each input line on its own."
+    exit 1
+}
+
+Msg () {
+    for MsgLine
+    do echo "$PN: $MsgLine" >&2
+    done
+}
+
+Fatal () { Msg "$@"; exit 1; }
+
+set -- `getopt hl "$@" 2>/dev/null` || Usage
+[ $# -lt 1 ] && Usage           # "getopt" detected an error
+
+EncodeEOL=no
+while [ $# -gt 0 ]
+do
+    case "$1" in
+        -l) EncodeEOL=yes;;
+    --) shift; break;;
+    -h) Usage;;
+    -*) Usage;;
+    *)  break;;         # First file name
+    esac
+    shift
+done
+
+LANG=C  export LANG
+$AWK '
+    BEGIN {
+    # We assume an awk implementation that is just plain dumb.
+    # We will convert an character to its ASCII value with the
+    # table ord[], and produce two-digit hexadecimal output
+    # without the printf("%02X") feature.
+
+    EOL = "%0A"     # "end of line" string (encoded)
+    split ("1 2 3 4 5 6 7 8 9 A B C D E F", hextab, " ")
+    hextab [0] = 0
+    for ( i=1; i<=255; ++i ) ord [ sprintf ("%c", i) "" ] = i + 0
+    if ("'"$EncodeEOL"'" == "yes") EncodeEOL = 1; else EncodeEOL = 0
+    }
+    {
+    encoded = ""
+    for ( i=1; i<=length ($0); ++i ) {
+        c = substr ($0, i, 1)
+        if ( c ~ /[a-zA-Z0-9.-]/ ) {
+        encoded = encoded c     # safe character
+        } else if ( c == " " ) {
+        encoded = encoded "+"   # special handling
+        } else {
+        # unsafe character, encode it as a two-digit hex-number
+        lo = ord [c] % 16
+        hi = int (ord [c] / 16);
+        encoded = encoded "%" hextab [hi] hextab [lo]
+        }
+    }
+    if ( EncodeEOL ) {
+        printf ("%s", encoded EOL)
+    } else {
+        print encoded
+    }
+    }
+    END {
+        #if ( EncodeEOL ) print ""
+    }
+' "$@"
+
diff --git a/bin/contrib/webserver.rc b/bin/contrib/webserver.rc
new file mode 100755
index 0000000..8044565
--- /dev/null
+++ b/bin/contrib/webserver.rc
@@ -0,0 +1,30 @@
+#!/bin/rc
+
+# A web server in rc by maht
+# Originally from http://www.proweb.co.uk/~matt/rc/webserver.rc
+
+ifs=' '
+request=`{sed 1q}
+
+url=$request(2)
+file=`{echo $url | sed 's/http:\/\/[^\/]*//' | tr -d \012}
+
+if(test -d $file){
+	file=$file ^'/index.html'
+}
+if(test -e $file) {
+	response='200'
+}
+if not {
+	response='404'
+	file='404.html'
+}
+
+echo 'HTTP/1.1 ' ^$response
+echo 'Date: ' `{date}
+echo 'Server: rc shell'
+echo 'Content-Length: ' `{cat $file | wc -c | tr -d ' '}
+echo 'Content-Type: ' `{file -i $file  | awk '{ print $2 }'}
+echo 'Connection: close'
+echo
+cat $file