Print Page - Looking for symbol in (symbols)

Title: Looking for symbol in (symbols)
Post by: cormullion on March 29, 2006, 11:52:30 PM

How do I find out whether a symbol is an existing (built-in) newLISP symbol:

Code Select Expand
(find rubbish (symbols))
;-> 204

It looks like the symbol is created first, then found.

Title:
Post by: Lutz on March 30, 2006, 05:24:53 AM

'sym' with optionl 'nil' parameter suppresses creation and only checks existence:

Code Select Expand

> (sym "rubbish" MAIN nil)
nil
> (sym "println" MAIN nil)
println
>

see also http://newlisp.org/downloads/newlisp_manual.html#sym

Lutz

Title:
Post by: cormullion on March 30, 2006, 05:43:15 AM

Thanks - that's the one!

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