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variable <varname> <string>
variable <varname> NULL
Without arguments, the variable command will list what variables you
currently have set.
With a single variable specified, this command will show you what that
variable is set to.
When given a variable name and a string, the variable is created if needed
and the string is stored inside it. NULL can be used to delete a variable.
The only valid characters for a variable name are a-z, A-Z, 0-9, and
Variables can be used in commands by using $varname or $(varname) to
extract the value. For example:
say I am hunting $target
gossip I am coming to get you, $target!!!!!!
Note that using the $(varname) syntax, with parenthesis, does a recursive
expansion if necessary. For example:
var Dentin ppk
var target Dentin
say target is $target, target status is $($target)
Using the parenthesis is also the only way to check for empty variables:
say normal expansion of ->$undefined<-
say parenthesis expansion of ->$(undefined)<-
We recommended that you use parenthesis expansion when using the 'if'