1 files changed, 54 insertions, 0 deletions
diff --git a/cli/source/core/scala/com/rockymadden/stringmetric/cli/similarity/nGramAlgorithm.scala b/cli/source/core/scala/com/rockymadden/stringmetric/cli/similarity/nGramAlgorithm.scala
new file mode 100755
index 0000000..58ea028
--- /dev/null
+++ b/cli/source/core/scala/com/rockymadden/stringmetric/cli/similarity/nGramAlgorithm.scala
@@ -0,0 +1,54 @@
+package com.rockymadden.stringmetric.cli.similarity
+
+import com.rockymadden.stringmetric.cli._
+import com.rockymadden.stringmetric.similarity.NGramAlgorithm
+
+/**
+ * The nGramAlgorithm [[com.rockymadden.stringmetric.cli.Command]]. Returns the N-Gram representation of the passed string.
+ */
+object nGramAlgorithm extends Command {
+	override def main(args: Array[String]): Unit = {
+		val options = OptionMap(args)
+
+		try {
+			// Help.
+			if (options.contains('h) || options.contains('help)) {
+				help()
+				exit(options)
+			// Execute.
+			} else if (options.contains('dashless) && (options('dashless): OptionMapArray).length == 1
+				&& options.contains('n) && (options('n): OptionMapInt).isDefined
+			) {
+				execute(options)
+				exit(options)
+			// Invalid syntax.
+			} else throw new IllegalArgumentException("Expected valid syntax. See --help.")
+		} catch {
+			case e => error(e, options)
+		}
+	}
+
+	override def help(): Unit = {
+		val ls = sys.props("line.separator")
+		val tab = "  "
+
+		println(
+			"Returns the N-Gram representation of the passed string." + ls + ls +
+			"Syntax:" + ls +
+			tab + "nGramAlgorithm [Options] string..." + ls + ls +
+			"Options:" + ls +
+			tab + "-h, --help" + ls +
+			tab + tab + "Outputs description, syntax, and options." +
+			tab + "--n" + ls +
+			tab + tab + "The n."
+		)
+	}
+
+	override def execute(options: OptionMap): Unit = {
+		val n: OptionMapInt = options('n)
+
+		println(
+			NGramAlgorithm.compute(options('dashless))(n).map(_.mkString("|")).getOrElse("not computable")
+		)
+	}
+}
+\ No newline at end of file