> Anyone know a good decent UDF library out there?, I checked
> some like the ones come from FB, and FreeUDFLib, they're good
> but just missing some functions which to me are very basic,
> for example, for the string functions, no POS(), DELETE(),
> COPY().

Note that there is the built in SUBSTRING function that is the
equivalent of a Delphi Copy. See the release notes.

Have you checked these lists of libraries?
http://www.cvalde.net/misc/packages_and_utilities.htm
http://www.ibphoenix.com/main.nfs?a=ibphoenix&s=1113774959:402762&page=ibp_udf_libs

I dont really know what is in them all. I have my own library
that includes such things as Pos - but it is really not
suitable for isolated distribution (it has lots that is only
relevant to my apps and does things a bit differently to what
you will find in most UDFs).

Some of the open source efforts that you see listed could be
interested in contributions or suggestions for expansion if
you find something close to what you want.

If you are familiar to C or Pascal then adding these functions
to an existing free/open package would not be difficult.

--
Geoff Worboys
Telesis Computing