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skill writing style

nrk1
I am new to skill and was looking at skill codes available on the web. I found abMapAndWire.ils by Andrew Beckett and noticed that variables are assigned in the first form below rather than the second. What are the differences? and advantages of the former? Tried searching the web and this forum and couldn't find something that directly mentioned these, probably because I don't know the proper names for them.
 
Form 1 (syntax form???):
(setq pin (car (getq terminal pins)))
 
Form 2 (assignment???):
pin=car(terminal~>pins)
 
Also, in the skill language reference, the syntax is given as
setq( x 5 )
rather than
(setq x 5)
 
What are the differences? and the preferred way? 
 
Thanks 
Regards

Parents

  • Yes, the SKILL LISP mode is a bit verbose when it comes to expressions. In a number of LISP dialects the expression would be (setq a (* (- b c) d) (might be setf rather than setq). In SKILL however, the operator symbols can't directly be used as function names (they could, but they'd have to be escaped, which would be a bit clunky) - so instead we have wordy equivalents of the *, -, +, / functions etc.

    Regards,

    Andrew.

Reply

  • Yes, the SKILL LISP mode is a bit verbose when it comes to expressions. In a number of LISP dialects the expression would be (setq a (* (- b c) d) (might be setf rather than setq). In SKILL however, the operator symbols can't directly be used as function names (they could, but they'd have to be escaped, which would be a bit clunky) - so instead we have wordy equivalents of the *, -, +, / functions etc.

    Regards,

    Andrew.

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