Data commit

Task/UTF-8-encode-and-decode/Scala/utf-8-encode-and-decode-1.scala

@@ -0,0 +1,23 @@
+object UTF8EncodeAndDecode extends App {
+
+  val codePoints = Seq(0x0041, 0x00F6, 0x0416, 0x20AC, 0x1D11E)
+
+  def utf8Encode(codepoint: Int): Array[Byte] =
+    new String(Array[Int](codepoint), 0, 1).getBytes(StandardCharsets.UTF_8)
+
+  def utf8Decode(bytes: Array[Byte]): Int =
+    new String(bytes, StandardCharsets.UTF_8).codePointAt(0)
+
+  println("Char Name                                 Unicode  UTF-8       Decoded")
+  for (codePoint <- codePoints) {
+    val w = if (Character.isBmpCodePoint(codePoint)) 4 else 5 // Compute spacing
+    val bytes = utf8Encode(codePoint)
+
+    def leftAlignedHex = f"U+${codePoint}%04X"
+
+    val s = new StringBuilder()
+    bytes.foreach(byte => s ++= "%02X ".format(byte))
+
+    printf(s"%-${w}c %-36s %-7s  %-${16 - w}s%c%n",
+      codePoint, Character.getName(codePoint), leftAlignedHex, s, utf8Decode(bytes))
+  }

Task/UTF-8-encode-and-decode/Scala/utf-8-encode-and-decode-2.scala

@@ -0,0 +1,26 @@
+import java.nio.charset.StandardCharsets
+
+object UTF8EncodeAndDecode extends App {
+
+  val codePoints = Seq(0x0041, 0x00F6, 0x0416, 0x20AC, 0x1D11E)
+
+  def utf8Encode(codepoint: Int): Array[Byte] =
+    new String(Array[Int](codepoint), 0, 1).getBytes(StandardCharsets.UTF_8)
+
+  def utf8Decode(bytes: Array[Byte]): Int =
+    new String(bytes, StandardCharsets.UTF_8).codePointAt(0)
+
+  println("Char Name                                 Unicode  UTF-8       Decoded")
+  codePoints.foreach{ codePoint =>
+    val w = if (Character.isBmpCodePoint(codePoint)) 4 else 5 // Compute spacing
+    val bytes = utf8Encode(codePoint)
+
+    def leftAlignedHex: String = f"U+${codePoint}%04X"
+
+    def utf: String = bytes.foldLeft("")(_ + "%02X ".format(_))
+
+    printf(s"%-${w}c %-36s %-7s  %-${16 - w}s%c%n",
+      codePoint, Character.getName(codePoint), leftAlignedHex, utf, utf8Decode(bytes))  }
+
+  println(s"\nSuccessfully completed without errors. [total ${scala.compat.Platform.currentTime - executionStart} ms]")
+}

Task/UTF-8-encode-and-decode/Scala/utf-8-encode-and-decode-3.scala

@@ -0,0 +1,33 @@
+package example
+
+object UTF8EncodeAndDecode extends TheMeat with App {
+  val codePoints = Seq(0x0041, 0x00F6, 0x0416, 0x20AC, 0x1D11E)
+
+  println("Char Name                                 Unicode  UTF-8       Decoded")
+  codePoints.foreach { codepoint => print(composeString(codepoint)) }
+
+  println(s"\nSuccessfully completed without errors. [total ${scala.compat.Platform.currentTime - executionStart} ms]")
+}
+
+trait TheMeat {
+  import java.nio.charset.StandardCharsets
+
+  def composeString(codePoint: Int): String = {
+    val w = if (Character.isBmpCodePoint(codePoint)) 4 else 5 // Compute spacing
+    val bytes = utf8Encode(codePoint)
+
+    def leftAlignedHex: String = f"U+${codePoint}%04X"
+
+    def utf: String = bytes.foldLeft("")(_ + "%02X ".format(_))
+
+    s"%-${w}c %-36s %-7s  %-${16 - w}s%c%n"
+      .format(codePoint, Character.getName(codePoint), leftAlignedHex, utf, utf8Decode(bytes))
+  }
+
+  def utf8Encode(codepoint: Int): Array[Byte] =
+    new String(Array[Int](codepoint), 0, 1).getBytes(StandardCharsets.UTF_8)
+
+  def utf8Decode(bytes: Array[Byte]): Int =
+    new String(bytes, StandardCharsets.UTF_8).codePointAt(0)
+
+}