Initial data commit

Task/Align-columns/C-sharp/align-columns-2.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Linq;
+
+enum Justification { Left, Center, Right }
+
+public class Program
+{
+    static void Main()
+    {
+        string text =
+@"Given$a$text$file$of$many$lines,$where$fields$within$a$line$
+are$delineated$by$a$single$'dollar'$character,$write$a$program
+that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$
+column$are$separated$by$at$least$one$space.
+Further,$allow$for$each$word$in$a$column$to$be$either$left$
+justified,$right$justified,$or$center$justified$within$its$column.";
+
+        AlignColumns(text, Justification.Left);
+        Console.WriteLine();
+        AlignColumns(text, Justification.Center);
+        Console.WriteLine();
+        AlignColumns(text, Justification.Right);
+    }
+
+    public static void AlignColumns(string text, Justification justification) =>
+        AlignColumns(text.Split(Environment.NewLine), justification);
+
+    public static void AlignColumns(string[] lines, Justification justification) =>
+        AlignColumns(lines.Select(line => line.Split('$')).ToArray(), justification);
+
+    public static void AlignColumns(string[][] table, Justification justification)
+    {
+        Console.WriteLine(justification + ":");
+        int columns = table.Max(line => line.Length);
+        var columnWidths =
+            Enumerable.Range(0, columns)
+            .Select(i => table.Max(line => i < line.Length ? line[i].Length : 0)
+            ).ToArray();
+
+        foreach (var line in table) {
+            Console.WriteLine(string.Join(" ",
+                Enumerable.Range(0, line.Length)
+                .Select(i => justification switch {
+                    Justification.Left => line[i].PadRight(columnWidths[i]),
+                    Justification.Right => line[i].PadLeft(columnWidths[i]),
+                    _ => line[i].PadLeft(columnWidths[i] / 2).PadRight(columnWidths[i])
+                })
+            ));
+        }
+    }
+
+}