#!/usr/bin/env rc
#!/bin/rc
. 9.rc

cachedir=/tmp/md_cache
mkdir -p $cachedir >[2]/dev/null

tmpfile=$cachedir/mdtmp.$pid
score=`{{tee $tmpfile || exit 1} | sha1sum}
cachefile=$cachedir/$score

if(test -f $cachefile)
    cat $cachefile
if not {
    markdown.pl < $tmpfile | tee $cachefile.$pid
    mv $cachefile.$pid $cachefile
}
rm $tmpfile >[2]/dev/null