Hi Adam,

> Yes but nothing about AT,SUBSTR and Left functions in this article. In my opiniont this functions are slow.

These functions, by themselves, are actually pretty quick, but once you start combining them into complex routines with larger strings, they can start to slow down. I doubt you could find an API or FLL function that would to a 1-to-1 replacement of these functions that would be any faster...they would probabaly be slower because VFP has to copy all the memory, at least twice for each API call.

It sounds like you would be better off changing the way your routine operates on the strings and use pointers instead of full-string functions. This is a different approach, and can be complex, but it can also be lightning faster that iterating through strings using AT( ) and SUBSTR( ).

If you want to post a sample of what you are doing, I will try to offer an alternative using a string pointer technique and VCR functions that you can just DECLARE in a FoxPro function.