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mawebr
Newbie
Joined: 28 Oct 2009
Posts: 4
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 Posted: Wed Oct 28, 2009 4:20 pm
%addItem
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I have a trigger, that when fired performs this...
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| %additem( %2, @cList) |
where cList is a string list type variable, and %2 is a single word. The problem that I am having is that instead of adding the word to the variable list, it instead sends that word directly to the mud. I have tried %concat with the same error.
Any ideas? |
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orphean
Apprentice
Joined: 21 Oct 2008
Posts: 147
Location: Olympia, WA
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Posted: Wed Oct 28, 2009 5:18 pm
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%additem returns a new list with the new item added, it doesn't modify the original list. The trigger should do this instead:
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| cList = %additem(%2, @cList) |
Since %additem is returning the new list it will get sent to the mud if its called by itself just like anything else that isn't a command/function would. |
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MattLofton
GURU
Joined: 23 Dec 2000
Posts: 4834
Location: USA
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Posted: Wed Oct 28, 2009 5:36 pm
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Functions (more accurately, anything that begins with % or @) return a result to the entity that called them. Commands (anything that starts with the number sign, or aliases), simply execute and send stuff to the game.
In your specific case, %additem() returns the new stringlist consisting of the old stringlist (@cList) plus the addition (%2). Since you didn't assign it to anything, the result is lost and @cList never gets %2 added to it. |
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EDIT: I didn't like my old signature |
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Zugg
MASTER
Joined: 25 Sep 2000
Posts: 23379
Location: Colorado, USA
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Posted: Wed Oct 28, 2009 5:48 pm
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So, you could also use the #ADDITEM command instead:
#ADDITEM cList %2
which is the most efficient way to add an item to a list and modify the list. This is faster than using the %additem function. |
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charneus
Wizard
Joined: 19 Jun 2005
Posts: 1876
Location: California
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Posted: Wed Oct 28, 2009 7:07 pm
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| Zugg wrote: |
So, you could also use the #ADDITEM command instead:
#ADDITEM cList %2
which is the most efficient way to add an item to a list and modify the list. This is faster than using the %additem function. |
Unless, of course, you're needing to add duplicates, in which case you'll need to use %additem. Otherwise, #ADDITEM is definitely better.
Charneus |
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mawebr
Newbie
Joined: 28 Oct 2009
Posts: 4
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Posted: Wed Oct 28, 2009 7:25 pm
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Thank-you so much. I will try this when I get home. I am indeed using duplicates in a list, I had used #ADDITEM and it worked perfectly but with duplicates %additem is my only choice. Appreciate it.
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