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Task/Odd-word-problem/Scala/odd-word-problem.scala

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+import scala.io.Source
+import java.io.PrintStream
+
+def process(s: Source, p: PrintStream, w: Int = 0): Unit = if (s.hasNext) s.next match {
+  case '.' => p append '.'
+  case c if !Character.isAlphabetic(c) => p append c; reverse(s, p, w + 1)
+  case c => p append c; process(s, p, w)
+}
+
+def reverse(s: Source, p: PrintStream, w: Int = 0, x: Char = '.'): Char = s.next match {
+  case c if !Character.isAlphabetic(c) => p append x; c
+  case c => val n = reverse(s, p, w, c);
+    if (x == '.') {p append n; process(s, p, w + 1)} else p append x; n
+}
+
+process(Source.fromString("what,is,the;meaning,of:life."), System.out); println
+process(Source.fromString("we,are;not,in,kansas;any,more."), System.out); println