Ruby

# declaration. It can be in a number of formats, but in general it

# returns (example, result):

# <!ENTITY % YN '"Yes"'>

# <!ENTITY % YN 'Yes'>

# <!ENTITY WhatHeSaid "He said %YN;">

# <!ENTITY open-hatch SYSTEM "http://www.textuality.com/boilerplate/OpenHatch.xml">

# <!ENTITY open-hatch PUBLIC "-//Textuality//TEXT Standard open-hatch boilerplate//EN" "http://www.textuality.com/boilerplate/OpenHatch.xml">

# <!ENTITY hatch-pic SYSTEM "../grafix/OpenHatch.gif" NDATA gif>

def entitydecl content

end

# <!NOTATION ...>