Hi Fabio,

>I try another example:
>

>CLEAR
>ON ERROR ?? MESSAGE()
>
>? "Expected : 6    Observed VFP8 : 6 VFP9 : Error"
>? EVALUATE("printLenString([3+5"+CHR(13)+"+2])")
>
>? "Expected : 6    Observed VFP8 and VFP9 : Error"
>? EVALUATE("printLenString([3+5"+CHR(10)+"+2])")
>
>ON ERROR
>
>PROCEDURE printLenString(s)
>RETURN LEN(s)

I think, you are still evaluating a multi-line string. A single line string with a CHR(13) or CHR(10), using your example could be:

? "Expected : 6    Observed VFP9 : 6"
? EVALUATE("printLenString([3+5]+CHR(13)+[+2])")

? "Expected : 6    Observed VFP9 : 6"
? EVALUATE("printLenString([3+5]+CHR(10)+[+2])")

For me the rule of the Thumb is, would the string be a valid VFP commandline. See the difference:

Your string: (not a valid vfp commandline)

printLenString([3+5
+2])

My string: (a valid vfp commandline)

printLenString([3+5]+CHR(10)+[+2])

Regards,