Mailing List Archive: 49091 messages
  • Home
  • Script library
  • AltME Archive
  • Mailing list
  • Articles Index
  • Site search

[REBOL] Re: Slashdot REBOL mention

From: lmecir:mbox:vol:cz at: 31-Oct-2001 19:33

Hi, I made a mistake writing the description, my apologies (I warned you, this is not an easy notion to define). The correct description would be: If we DO a BLOCK, we evaluate the words it contains according to the normal semantic rules (you can find their description e.g. at my Rebsite). That is true regardless of the context the words are bound to. If we instead used block as a parse rule, BLOCK would have been evaluated differently i.e. not according to the normal semantic rules. That is again true regardless of the context the words are bound to. [Romano wrote:]
> Everything is a dialect in Rebol.
This isn't a dialect definition I would suggest to use, according to that all languages would be dialecting, because you can change the variables in any language. The existence of dialects doesn't distinguish (C and Rebol e.g.) languages. The real difference is, that we can define our own Rebol dialects (using PARSE e.g.). PARSE can be used to totally change the way how the block is being interpreted. Rebol can easily handle blocks, which can be basically considered sentences of the language. The interesting consequence of that is, that as opposed to C, Rebol will never have any macro language, because Rebol is a macro language for itself. (Don't you like that?) A "buzzword" that communicates this meaning is, that REBOL is a language with meta-circular semantics. The above feature makes the language much more communicative than any other language not having the feature is. Hope the text is a little bit more consistent now. Regards Ladislav