maildir to rss

#!/usr/bin/zsh

baseurl="http://example.com/blog/"
cd "/home/user/public_html/blog/"

j=0
for i in `ls | sort -r`
do ;
	j=`expr $j + 1`
	if [ $j -gt 15 ]
	then ;
		break
	fi
	awk '
		function esc(s) {
			gsub("&","\\&",s)
			gsub("\"","\\"",s)
			gsub("'\''","\\'",s)
			gsub("<","\\&lt;",s)
			gsub(">","\\&gt;",s)
			return s
		}
		BEGIN{ FS=": "; link="'$baseurl$i'" }
		/^Subject:/{ $1=""; title=esc($0) }
		/^Message-ID:/{ $1=""; gsub("<","",$0); gsub(">","",$0); gsub(" ","",$0); guid="mid:"$0 }
		/^Date:/{ $1=""; date=$0 }
		{
			if (!$0&&!content) {
				content = 1
			} else if (content) {
				desc = desc esc($0) "&lt;br&gt;\n"
			}
		}
		END{ print "\
		<item>\n\
			<title>"title"</title>\n\
			<description>"desc"</description>\n\
			<link>"link"</link>\n\
			<guid>"guid"</guid>\n\
			<pubDate>"date"</pubDate>\n\
		</item>"}
		' $i
done