[REBOL] Re: command line [arguments] [Coding Style]
From: ed::brittlestar::com at: 6-Apr-2004 20:05
Max wrote:
> rebol prefered (and simpler) style:
>
> either none? system/script/args [
> print "no args"
> ][
> print "args waiting"
> ]
Someone else will probably jump on this, but see Zine Issue #2 for style
suggestions on this particular example:
http://www.rebolforces.com/zine/rzine-1-02/#sect10.
The upshot is that:
print pick ["no args" "args waiting"] none? system/script/args
is probably closer to the "preferred" REBOL style envisioned by its creator.
I'm no guru, but I might consider a reader-friendly form:
arg-status: ["no args" "args waiting"]
print pick arg-status (none? system/script/args)
Or, if I knew I needed variations of this (i.e., for the other system/script
values), maybe something like:
status-msg: func [
"Return a pair of status messages in a block suitable for 'pick."
subject [string!]
][
reduce [reform ["no" subject] reform [subject "available"]]
]
print pick status-msg "args" (none? system/script/args)
Other, wiser REBOLs can probably suggest better approaches.
Best regards,
Ed
