[REBOL] Re: REBOL Enhancement Proposals (REPs)
From: deadzaphod:flyingparty at: 26-Sep-2001 1:39
> I would find that REP handy, particularly when dealing with REBOL/Command
> and the blocks it returns . ["username" "userpass"]
>
> e.g
> config: context [user: pass: none offset: 0x0 color: grey]
> insert db-port [{SELECT User, Pass FROM Clients WHERE ClientID = 3}]
> set [config/user config/pass] pick db-port 1
what's wrong with
set bind [ user pass ] in config 'self pick db-port 1
> This is more using the "c-struct" fashion as you mention, but when dealing
> with a lot of fields, I will make less errors when dealing with named
> elements from an object (or block) rather than trying to remember their
> index numbers to pick them from a block.
if there were a lot of fields (rather than the two in this example) the
existing syntax is shorter. The only time there is a significant advantage
to the REP is if you want to set words in several objects at once. For
those situations I recommend using something like the function below in
place of 'bind...
bind-with: func [ words obj-set /copy ] [
if copy [ words: system/words/copy/deep words ]
foreach obj obj-set [ bind words in obj 'self ]
return words
]
I wrote this around a year ago when I needed something like a context
hierarchy in one of my scripts.
- Cal Dixon
