[NTG-pdftex] Extensions: \pdf$foo or \$foo?

[Pawel Jackowski]

Hi,

i've asked several everyday-TeX-users (but quite new to pdfTeX) what 
they think about prefixes. \pdf* prefix for commands not related to PDF 
are *more* confusing than non-prefixed that may occasionally conflict 
with macros.

> Hans:
> \ext (extensions) -> \extmatch

IMHO much better than \pdfmatch. However, in 2010 nobody will remember 
that regex support was an extension in 2005. All prefixes encounter this 
problem. Thus, I agree with Taco, that if some command can't be grep-ed 
in representative TeX archives, it can be used as a new primitive.

Regards,
-- 
Pawe/l Jackowski
P.Jackowski at gust.org.pl