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alluran
Adept
Joined: 14 Sep 2005
Posts: 223
Location: Sydney, Australia
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 Posted: Fri Dec 22, 2006 11:19 am
Recursion Function Causes Hard Crash
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Ok, so this is probably a nasty piece of code to throw at a BETA release, but Almost all my scripts use this, or the ansi color version of this for their outputs (depends if its outputting to mud or screen)
Lets assume we make a variable (function, whatever, i tried using #func to create it too :P) named highlight with the following code
| Code: |
%char( 64)%2%left( %item( %replace( %1, " ", "|"), %max( 1, %4)), 1)%char( 64)%if( %len( %3)>0, %3, %if( %2=%upper( %2), %lower( %2), %upper( %2)))%right( %item( %replace( %1, " ", "|"), %max( 1, %4)), 1)%if( %max( 1, %4)<%numitems( %replace( %1, " ", "|")), %char( 32)@highlight(%1,%2,%3,%eval(%max(1,%4)+1)))
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now, #say @highlight(Test,R) works perfectly, however, as soon as you introduce spacing in (ie make it use its recursion routines) it will crash. So to test, simply go #say @highlight("Crash Now",R)
once again, cMud is looking nice, and the features list has me dreaming, just get the scripting up a little better and i'll leave zMud forever :) |
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Ceres
Wanderer
Joined: 25 May 2006
Posts: 88
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Posted: Fri Dec 22, 2006 12:16 pm
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CMUD is not a BETA assuming you have the latest version 1.24
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kjaerhus
Magician
Joined: 18 Dec 2006
Posts: 317
Location: Denmark
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Posted: Fri Dec 22, 2006 12:54 pm
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That is an obscure piece of scripting you have there - bet you could win a code obfuscation contest with it... 
What is it supposed to do? Maybe that would make deciphering it a bit easier. |
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alluran
Adept
Joined: 14 Sep 2005
Posts: 223
Location: Sydney, Australia
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Posted: Fri Dec 22, 2006 3:26 pm
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Meh, fine, its not the beta, i dunno, i only installed it the other day, i still use zmud primarily, had been waiting for cmud to become a little more stable, and yeah, its 1.24
Basically the script highlights the first letter of each word that you pass into it, my mud uses @<color> for colors, so for example, @highlight(This is a Test,R) would produce @RT@rhis @Ri@rs @Ra@r @RT@rest |
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Vijilante
SubAdmin
Joined: 18 Nov 2001
Posts: 5182
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Posted: Fri Dec 22, 2006 10:09 pm
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I think it is actually the recursive call that is causing the crash. In any case....
%subregex(%1,"(.?)(\a+\b?)","@R%1@r%2") |
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alluran
Adept
Joined: 14 Sep 2005
Posts: 223
Location: Sydney, Australia
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Posted: Fri Dec 22, 2006 10:32 pm
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Your subregex didnt work for me, though i think i know what you're getting at, guess its time i finally learnt regexp
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Fang Xianfu
GURU
Joined: 26 Jan 2004
Posts: 5155
Location: United Kingdom
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Posted: Sat Dec 23, 2006 8:47 pm
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Well, you could just do it with an oninput trigger using Zugg's syntax if you'd rather.
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NowhereMan
Beginner
Joined: 09 Dec 2004
Posts: 10
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Posted: Tue Dec 26, 2006 7:37 pm
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| Vijilante wrote: |
%subregex(%1,"(.?)(\a+\b?)","@R%1@r%2") |
i think he probably meant \w, not \a .
afaik, \a doesn't match anything useful. (Alarm/beep?)
substituting \w for \a, that regex will also match a space followed by a word, so the spaces between the words will get colored rather than the first letter.
i think this slight modification will work for you:
%subregex(%1,"\b(\w)","@R%1@r")
fyi,
\b matches a 'word boundary', so this regex should capture any letter preceeded by something that's not part of a word (like a space, punctuation, or the beginning of the line). |
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alluran
Adept
Joined: 14 Sep 2005
Posts: 223
Location: Sydney, Australia
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Posted: Tue Dec 26, 2006 8:31 pm
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i figured whats going on, and the news is all bad i'm afraid
i copied the example straight outta the documentation:
| Code: |
| #SHOW %subregex("100 gold, 200 silver", "(\d+)", "%eval(%1+10)") |
and it outputted
| Quote: |
| 10 gold, 10 silver |
so it would seem, the subregex function is broken to me |
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Zugg
MASTER
Joined: 25 Sep 2000
Posts: 23379
Location: Colorado, USA
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Posted: Wed Jan 17, 2007 8:25 pm
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Added the %subregex example to the bug list.
For the recursive problem, I'll need a simpler example to really debug this. Recursive function calls will crash CMUD if they end up being infinite loops that never stop calling itself. |
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Fang Xianfu
GURU
Joined: 26 Jan 2004
Posts: 5155
Location: United Kingdom
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Posted: Wed Jan 17, 2007 10:28 pm
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I remember reading in another thread that the recursive function example in the #function help file causes a crash.
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Guinn
Wizard
Joined: 03 Mar 2001
Posts: 1127
Location: London
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