Virtual Entry Station (VES)

Virtual Entry Station (VES) allows a CLI-like approach to the system from any task or library. VES permits access to virtually any system property. The application developer must take into account that, in the contrast to regular programs and libraries, the string is passed to VES and are interpreted and translated at run-time. Execution takes much more time than the equivalent line in the program.

The response of VES is ASCII an string, which could be immediately printed or assigned to any string variable. Since VES involves translation and then interpretation, the result could also be an error message. To distinguish between a normal response and an error, VES gives either a “D:” or “E:” prefix to the output.

VES Example:

Program

Dim s2 as string

Dim s1 as string

S2="?sys.time"

S1=VesExecute(s2)

Print s1

S1=VesExecute(“sys.time”) ‘ incorrect, returns syntax error

Print s1

End program


Output:

D:18:27:19

E:Error: 7039, "Syntax Error", Module: Translator