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kiyakerz
Beginner
Joined: 06 Feb 2012
Posts: 11
Location: Phoenix
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 Posted: Mon Feb 06, 2012 5:57 am
alias problem
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Hi, I'm having a problem with passing an argument to an alias. I have an alias called runpath that accepts a string list as the first argument so for example, normally when I want to run my path I type the following
runpath @deathlyhallows
That will initiate the path into my variable and it will do it's thing. Recently I've wanted to create a circuit that will run many paths one after another in a loop. The rest of my script is sound and seems to be working, but when I get to the part where I want to run my path it does't work. I'm trying to call a path from a stringlist. the string list contains variable names such as @blah and @whatever.
I have an alias called death for testing, which contains the following
runpath %item(circuit1,1)
It is supposed to pull item number 1 from the stringlist circuit1 which is a variable. instead it initiates the alias runpath without an argument and then sends the item from the stringlist as a command to the mud. Is this a bug or is there another way to perform this? Any help would be appreciate. Thanks! |
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Rahab
Wizard
Joined: 22 Mar 2007
Posts: 2320
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Posted: Mon Feb 06, 2012 12:47 pm
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That should be:
| Code: |
| runpath %item(@circuit1,1) |
but I suspect that was just a typo in your message; it sounds like you have it correct in your code.
If the item being pulled from @circuit1 is a variable name rather than an explicit stringlist, then the problem is clear. Cmud will parse the commandline and expand variables within it, but it won't automatically parse variable names which are the result of a function.
The most straightforward way of fixing this is to explicitly expand the result of the function:
| Code: |
| runpath %expand(%item(@circuit1,1)) |
There are several other ways to do what you are thinking of. For instance, is there a reason you aren't using Cmud paths for this instead of your own implementation? |
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kiyakerz
Beginner
Joined: 06 Feb 2012
Posts: 11
Location: Phoenix
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Posted: Mon Feb 06, 2012 7:18 pm
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Rahab, amazing! I think that did the trick. I had a similar idea last night about why that was happening but it was getting late and my alternate solution would have been much less elegant. Thank you so much for your help!! :)
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