hi,
"And" <49341109@ntnu.edu.tw> wrote:
> How to check... a defined identifier string?> or number?
not sure if you're using Linux, or have access to. if so, have a look perhaps
at WFP's 'povr' branch. eg
<http://news.povray.org/60abd77d%241%40news.povray.org>.
regards, jr.