H
g/&/s//\&/g
g/</s//\&lt;/g
g/>/s//\&gt;/g
g/"/s//\&quote;/g
g/^/s// <tr><td>/g
g/,/s//<\/td><td>/g
g/$/s//<\/td>\
 <\/tr>/
1s/^/<table>\
/
$s/$/\
<\/table>/
,p
Q