Handling pathological lists
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Handling pathological lists

From: keithv <kvetter@gmail.com>
Date: Fri Oct 28 2005 - 16:49:52 CEST



Boiling down a complex problem to a simple problem,


I need to find the llength of the first item of a


list. Simple right? Just:



   llength [lindex $myList 0]



But this fails if you have a pathological list such as:



   set myList [list \{ \}]



=> llength [lindex $myList]


   unmatched open brace in list



Granted this is a contrived example, but is there


a way of handling this without resorting to catch?



Keith


Received on Mon Nov 21 00:36:42 2005