Data commit

Task/Multisplit/C-sharp/multisplit.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Multisplit
+{
+    internal static class Program
+    {
+        private static void Main(string[] args)
+        {
+            foreach (var s in "a!===b=!=c".Multisplit(true, "==", "!=", "=")) // Split the string and return the separators.
+            {
+                Console.Write(s); // Write the returned substrings and separators to the console.
+            }
+            Console.WriteLine();
+        }
+
+        private static IEnumerable<string> Multisplit(this string s, bool returnSeparators = false,
+                                                      params string[] delimiters)
+        {
+            var currentString = new StringBuilder(); /* Initiate the StringBuilder. This will hold the current string to return
+                                                      * once we find a separator. */
+
+            int index = 0; // Initiate the index counter at 0. This tells us our current position in the string to read.
+
+            while (index < s.Length) // Loop through the string.
+            {
+                // This will get the highest priority separator found at the current index, or null if there are none.
+                string foundDelimiter =
+                    (from delimiter in delimiters
+                     where s.Length >= index + delimiter.Length &&
+                           s.Substring(index, delimiter.Length) == delimiter
+                     select delimiter).FirstOrDefault();
+
+                if (foundDelimiter != null)
+                {
+                    yield return currentString.ToString(); // Return the current string.
+                    if (returnSeparators) // Return the separator, if the user specified to do so.
+                        yield return
+                            string.Format("{{\"{0}\", ({1}, {2})}}",
+                                          foundDelimiter,
+                                          index, index + foundDelimiter.Length);
+                    currentString.Clear(); // Clear the current string.
+                    index += foundDelimiter.Length; // Move the index past the current separator.
+                }
+                else
+                {
+                    currentString.Append(s[index++]); // Add the character at this index to the current string.
+                }
+            }
+
+            if (currentString.Length > 0)
+                yield return currentString.ToString(); // If we have anything left over, return it.
+        }
+    }
+}