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IWETHEY Home / IWETHEY Board / Theory and Practice of Programming Forum / I dunno, Skip
Post #204,506
by jb4
Picture of jb4
4/22/05 4:07:44 PM
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New I dunno, Skip
IIRC SNOBOL2 had a similar construct. You got a string from the input data set, then ran various filter specs over it. the specs that ran over a given string could change based upon what previous filters found (or didn't find), and there were ways to save contexts and variables and such across the "cycles".

It's been about 35 years or so since I ran my last SNOBOL2 program, so I don't know how accurately I remember it, but...there you have it.
jb4
shrub\ufffdbish (Am., from shrub + rubbish, after the derisive name for America's 43 president; 2003) n. 1. a form of nonsensical political doubletalk wherein the speaker attempts to defend the indefensible by lying, obfuscation, or otherwise misstating the facts; GIBBERISH. 2. any of a collection of utterances from America's putative 43rd president. cf. BULLSHIT
Post #204,508
by imric
4/22/05 4:21:05 PM
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New You're up on me
I've heard of Snobol, but I'm totally unfamiliar with it.

It's not as if you actually filter anything with the cycle - it just sets indicators (boolean values) depending on whether a value changes or not. It doesn't actually retain breaking (or broken) values unless you do it explicitly. There are conditioned sections of the program that are run/used according to what point in the cycle you are in. Multiple levels of level breaks make the thing damned useful.

I guess it's just that the cycle makes programming in RPG easy. I'd probably totally hate the language if I had to write RPG code without it.

Without the cycle, RPG is just... Lame.
[link|http://www.runningworks.com|
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Imric's Tips for Living
  • Paranoia Is a Survival Trait
  • Pessimists are never disappointed - but sometimes, if they are very lucky, they can be pleasantly surprised...
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Nothing is as simple as it seems in the beginning,
As hopeless as it seems in the middle,
Or as finished as it seems in the end.
 
 
Post #206,153
by static
Picture of static
5/5/05 7:40:26 PM
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New SNOBOL *Two*?
That could be interesting to see. Lessee what my Google-fu is like...

I've worked with SNOBOL4 a bit and like what it can do. But it's a FORTRAN-like language with no structures between gotos and functions. :-/

Wade.

Is it enough to love
Is it enough to breathe
Somebody rip my heart out
And leave me here to bleed
 
Is it enough to die
Somebody save my life
I'd rather be Anything but Ordinary
Please

-- "Anything but Ordinary" by Avril Lavigne.
Post #206,446
by jb4
Picture of jb4
5/7/05 6:17:58 PM
Reply
New SNOBOL2 most definitely != SNOBOL4
jb4
shrub\ufffdbish (Am., from shrub + rubbish, after the derisive name for America's 43 president; 2003) n. 1. a form of nonsensical political doubletalk wherein the speaker attempts to defend the indefensible by lying, obfuscation, or otherwise misstating the facts; GIBBERISH. 2. any of a collection of utterances from America's putative 43rd president. cf. BULLSHIT
     OK, explain the cycle to the ignorant masses here -NT - (tuberculosis) - (22) - April 22, 2005, 02:00:32 PM EDT
         What, again? - (imric) - (21) - April 22, 2005, 03:02:17 PM EDT
             I'd have to use it to see the point - (ben_tilly) - (18) - April 22, 2005, 03:38:16 PM EDT
                 Unfortunately true for many. - (imric) - (17) - April 22, 2005, 03:49:43 PM EDT
                     I dunno, Skip - (jb4) - (3) - April 22, 2005, 04:07:44 PM EDT
                         You're up on me - (imric) - April 22, 2005, 04:21:05 PM EDT
                         SNOBOL *Two*? - (static) - (1) - May 5, 2005, 07:40:26 PM EDT
                             SNOBOL2 most definitely != SNOBOL4 -NT - (jb4) - May 7, 2005, 06:17:58 PM EDT
                     Can you give a concrete example? - (ben_tilly) - (12) - April 22, 2005, 04:15:16 PM EDT
                         I was thinking of that. - (imric) - April 22, 2005, 04:23:07 PM EDT
                         Think of perl autolooping - (broomberg) - (10) - April 22, 2005, 07:01:50 PM EDT
                             I'm thinking about that and... - (ben_tilly) - (9) - April 24, 2005, 08:27:33 PM EDT
                                 I don't know Perl - (imric) - (8) - April 24, 2005, 09:04:18 PM EDT
                                     Don't even bother - (broomberg) - (7) - April 25, 2005, 12:25:28 AM EDT
                                         Whoa, that takes me back. - (imric) - (6) - April 25, 2005, 07:06:39 AM EDT
                                             But, COBOL programs can be read by management! :) - (a6l6e6x) - (5) - April 25, 2005, 11:16:20 AM EDT
                                                 Cobol DOES give that illusion... -NT - (imric) - (2) - April 25, 2005, 11:38:21 AM EDT
                                                     Oh, sure they can, that's no illusion. - (CRConrad) - (1) - April 26, 2005, 05:47:22 AM EDT
                                                         heheh. -NT - (imric) - April 26, 2005, 06:47:09 AM EDT
                                                 Yeah, the same way I can read Hebrew :) - (Arkadiy) - (1) - April 30, 2005, 12:11:17 PM EDT
                                                     *chuckle* -NT - (imric) - May 2, 2005, 07:04:55 AM EDT
             Ignoring the cycle - (FuManChu) - (1) - April 22, 2005, 04:24:37 PM EDT
                 Because - (imric) - April 22, 2005, 04:44:38 PM EDT

It's no good shouting out all of these random occurrences where you happen to see the face of the Virgin LRPD in a pancake in Guadalajara.
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