Thank you for explanation and efforts!
> So if 'call' (and possibly other functions) return some optional value > in '@@' (and perhaps '@@@'), it will not interfere with '@', and won't > need a new global variable every time. > > The symbols '@', '@@' and '@@@' can thus be seen as volatile, being > overwritten with auxiliary values whenever needed. This is already the > case in the REPL, where they are overwritten each time a result is > printed. To obtain the exit code in the REPL, you would do something > like: > > : (or (call "command" "arg") (quit "command exit code" @@)) > > > Does anybody have objections against this? If not, I'll put it tomorrow > into pil64, pil32 and Ersatz. -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
