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

[REBOL] Re: Rebol Product Suggestion.

From: g:santilli:tiscalinet:it at: 24-Jun-2001 23:12

Hello Joel! On 24-Giu-01, you wrote: JN> IMHO the game is about simply raising the costs high enough JN> that most people won't bother. That's why I suggest the Absolutely. JN> Nice! (But you didn't show how that change would affect the JN> shrouded copy! ;-) Left as an exercise to the reader . ;-) JN> I can think of all sorts of interesting benchmarks for the JN> behavior of CLEAR, COPY, and APPEND (the hidden allocations) JN> but the surface-level trade-off would seem to be a variation JN> on the classical time-for-space. If an abnormally large JN> result occurred early in a long-running process, then option JN> two would keep that amount of memory tied up and subsequently JN> unused forever (i.e., until REBOL quits). I think so... JN> That being the case, does JN> result: make string! some-normally-large-enough-size JN> ;... JN> result JN> sound like a middle-ground compromise to you? Yep. But it's not always that easy to choose some-normally-large-enough-size in a way that makes everyone happy. (Of course. :) Anyway, I just thought that it would have been useful to point out that there are many possibilities to choose from, and your analisys will surely help choosing! JN> Agreed. I had been thinking about the "full blown" problem of JN> taking an arbitrary REBOL source file and trying to shroud JN> it. Unfortunately, the task of figuring out which words were JN> my words versus system words (versus somebody-else's words?) JN> began to look quite hairy given the possibility of DO and JN> BIND appearing in the code. I think an acceptable solution could be the following: * the programmer puts all the code together in a huge script. * the tool loads the script and checks words versus what is in system/words; if a word is in system/words, it is put in the list of words to be aliased. * the tool spits out some unreadable and tricky code to alias the words in the list. * all the other words are simply substituted. What is more difficult is to find a way to automatically substitute simple expressions or literal values with trickier ones. I think this will need at least some human assistance. Any idea? JN> ply: func [print [series!] = [string! char!] /local JN> probe word? ] [ probe: copy word?: "" foreach to JN> print [ repend probe [ word? to ] word?: = ] probe ] This is nice, too. But I'm afraid it would be almost impossible to do automatically... (as you point out, too) Regards, Gabriele. -- Gabriele Santilli <[giesse--writeme--com]> - Amigan - REBOL programmer Amiga Group Italia sez. L'Aquila --