A runtime parser/interpreter, is the ability to parse and interpret a program command or expression at runtime.

The most obvious way of doing this VFP is by using the macro & and also using EVAL()

In web development, you can create HTML templates which actually contain VFP expressions delimited by say ##.

Example of HTML document template:

The total amount of taxes is:
##iif(taxallowed,invoice.totamount*tax.statetax,0)##


You can substitute any VFP expression between the ## and it will work.

I highly recommend looking at west-wind.com for more info.

Costas