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astrotaz
Beginner


Joined: 09 Aug 2011
Posts: 11

PostPosted: Fri Oct 07, 2011 9:39 pm   

quick question on variable and text
 
Hi --

I have a set of aliases which I'm using to move a path

eg:

alias chk1 e

alias chk2 s

alias chk3 s


I use another alias "walk" to initiate the aliases above as follows

chk@stepnum
#ad stepnum 1



the var stepnum is set as an integer

my problem is

the output is

chk 0
chk 1
chk 2

and not

chk0
chk1
chk2


I must be missing something simple but the extra space after the text and before the var is breaking things.

Thanks in advance.

Astro
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charneus
Wizard


Joined: 19 Jun 2005
Posts: 1876
Location: California

PostPosted: Fri Oct 07, 2011 11:38 pm   
 
Change it to #EXEC %concat("chk",@stepnum) and you'll be fine.
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astrotaz
Beginner


Joined: 09 Aug 2011
Posts: 11

PostPosted: Fri Oct 07, 2011 11:47 pm   
 
Beautiful works ! Interesting that you need to concatenate specifically. I just upgraded from zmud and that allowed chk@stepnum to work as is.

Thanks for helping me out.
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Rahab
Wizard


Joined: 22 Mar 2007
Posts: 2320

PostPosted: Sun Oct 09, 2011 12:49 am   
 
It would be a lot easier to just create a single variable (a stringlist) containing all of the path steps. Then you use %pop() to get the next step to take, e.g.:
Code:

#VAR mysteps {e|s|s}

#WHILE (@mysteps) {
  #SEND %pop(@mysteps)
}

This has many advantages. First, it can handle an arbitrarily long list of directions. Second, you only need a single variable. Third, you don't need to use #EXEC. #EXEC should be avoided when possible, in part because it prevents the script from being precompiled, which makes the script much slower.
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