Schrodinger's Parameters

theolodian

Hello all. I'm having trouble testing for valid/existing parameters in a macro. I can't seem to test if they are null, and the 'exists' function is like Scrodinger's cat - it just returns a yes no matter what I ask it!

This is on a 6HC running RRF 3.4b6 in SBC mode, set as a printer not CNC. Here is the test macro (sorry, don't know how to get it to display on the forum with indentation):

; test.g
; testing macro parameters

;If {param.Z} = null
; abort "ABORT - missing Z."
If exists {param.Z}
echo "Got Z!"
If {!exists {param.Z}}
abort "Not got Z!"
if !{{param.Z} < 100}
abort "ABORT - Invalid Z position."
echo "Tests passed"

This is the result with and without providing the Z parameter:

If I comment out aborting for !exists then this is the result without Z:

Any suggestions? Ideally I need a solution that works for numbers and strings please. Many thanks.

chrishamm

@theolodian You are using exists and braces in the wrong way. Try this instead:

; test.g
; testing macro parameters

;if param.Z = null
; abort "ABORT - missing Z."
if exists(param.Z)
  echo "Got Z!"
if !exists(param.Z)
  abort "Not got Z!"
if !{param.Z < 100}
  abort "ABORT - Invalid Z position."
echo "Tests passed"

theolodian

@chrishamm

Thanks, however same result.

Gixxerfast

@theolodian Use a small i instead of the capital I in if

theolodian

@gixxerfast

Ah, this is because of autocorrect doing this from a hotspotted iPad!?! Mind blown...

Thanks a ton!