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  1. USING: splitting sequences kernel math io prettyprint ;
  2. IN: star-struck
  3.  
  4. : star-struck ( str -- n ) [ CHAR: * = not ]
  5. split-when [ length 1 > ] filter concat length ;
  6.  
  7. lines [ star-struck . ] each
Success #stdin #stdout 0.12s 158016KB
stdin
"*xy***"
"a*bc**def****g"
"*a*b*c*d*e**f"
stdout
3
6
2