Alexander,

It is not always easy (nor even possible in rare occasions) to make
such expressions into tacit verbs. But the feature of using 13 :
'<expression that works with all 's converted to ''s> y' will give a
good solution. In this case I did the following.

   9!:3]5 6

   13 : '".;._1@:,~&''.''y'
".;._1@:,~&'.'
(((".;._1)@:,)~)&'.'

The above result suggest that a tacit function could be as follows.
   fn=: ".;._1@:,~&'.'
   fn '192.168.1.1'
192 168 1 1




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