[REBOL] Re: Hack
From: joel:neely:fedex at: 28-Dec-2001 6:22
Hi, Sunanda,
[SunandaDH--aol--com] wrote:
> I'm disappointed with Rebol that something as simple as
> "What's the name of the current function?" isn't easily
> available, something like:
>
> print System/Current/Function-name
>
Unfortunately, I'm too dense to parse the phrase "name of
the current function", at least WRT REBOL.
Consider the following:
>> f: reduce [
[ func [n] [n + 1]
[ func [n] [n * n - n + 1]
[ func [n] [n * n * n + 3]
[ ]
== [func [n][n + 1] func [n][n * n - n + 1]
func [n][n * n * n + 3]]
>> foreach ff f [print ff 3]
4
7
30
>>
None of those functions even *have* a name, or rather they
all have the same name, or ... hmmmm ;-)
The real issue is that functions are first-class values in
REBOL (i.e., just as with strings or numbers, they can be
created at will, passed as arguments, returned as the result
of an evaluation, etc...) As a consequence of this fact,
it is as meaningful/less to talk about the "name of the
current function" as it is to talk about the "name of the
current 2", IMHO.
--
; sub REBOL {}; sub head ($) {@_[0]}
REBOL []
# despam: func [e] [replace replace/all e ":" "." "#" "@"]
; sub despam {my ($e) = @_; $e =~ tr/:#/.@/; return "\n$e"}
print head reverse despam "moc:xedef#yleen:leoj" ;
