Data commit

Task/Abbreviations-automatic/Scala/abbreviations-automatic-1.scala

@@ -0,0 +1,7 @@
+name         := "Abbreviations-automatic"
+scalaVersion := "2.13.0"
+version      := "0.1"
+
+homepage     := Some(url("http://rosettacode.org/wiki/Abbreviations,_automatic#Scala"))
+
+libraryDependencies += "com.lihaoyi" %% "os-lib" % "0.3.0"

Task/Abbreviations-automatic/Scala/abbreviations-automatic-2.scala

@@ -0,0 +1,23 @@
+object AbbreviationsAuto extends App {
+  private val wd = os.pwd
+
+  def processLine(line: String): String = {
+    if (line.nonEmpty) {
+      val days = line.split(' ')
+      val maxL = days.map(_.length).max
+      val paddedNames = days.map(s => s.padTo(maxL, ' '))
+
+      def uniqueN = (1 to maxL) // distinct filters uniques
+        .map(n => paddedNames.map(_.substring(0, n)).distinct)
+        .filter(_.size == paddedNames.length)  // `.distinct` filters uniques
+        .head.head.length
+
+      f"$uniqueN%3d $line" // Return by means of String Interpolation
+    } else "    \"\""
+  }
+
+  os.read.lines(wd / "days_of_week.txt")
+    .distinct
+    .foreach(line => println(processLine(line)))
+
+}