Data commit

2023-07-01 11:58:00 -04:00 · 2023-07-01 11:58:00 -04:00 · cb5bb5e222
commit cb5bb5e222
parent 7387c8f97b
199093 changed files with 3378972 additions and 0 deletions
--- a/Task/Soundex/C-sharp/soundex.cs
+++ b/Task/Soundex/C-sharp/soundex.cs
@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Soundex
+{
+    internal static class Program
+    {
+        private static void Main()
+        {
+            var testWords = new TestWords
+                                {
+                                    {"Soundex", "S532"},
+                                    {"Example", "E251"},
+                                    {"Sownteks", "S532"},
+                                    {"Ekzampul", "E251"},
+                                    {"Euler", "E460"},
+                                    {"Gauss", "G200"},
+                                    {"Hilbert", "H416"},
+                                    {"Knuth", "K530"},
+                                    {"Lloyd", "L300"},
+                                    {"Lukasiewicz", "L222"},
+                                    {"Ellery", "E460"},
+                                    {"Ghosh", "G200"},
+                                    {"Heilbronn", "H416"},
+                                    {"Kant", "K530"},
+                                    {"Ladd", "L300"},
+                                    {"Lissajous", "L222"},
+                                    {"Wheaton", "W350"},
+                                    {"Burroughs", "B620"},
+                                    {"Burrows", "B620"},
+                                    {"O'Hara", "O600"},
+                                    {"Washington", "W252"},
+                                    {"Lee", "L000"},
+                                    {"Gutierrez", "G362"},
+                                    {"Pfister", "P236"},
+                                    {"Jackson", "J250"},
+                                    {"Tymczak", "T522"},
+                                    {"VanDeusen", "V532"},
+                                    {"Ashcraft", "A261"}
+                                };
+
+            foreach (var testWord in testWords)
+                Console.WriteLine("{0} -> {1} ({2})", testWord.Word.PadRight(11), testWord.ActualSoundex,
+                                  (testWord.ExpectedSoundex == testWord.ActualSoundex));
+        }
+
+        // List<TestWord> wrapper to make declaration simpler.
+        private class TestWords : List<TestWord>
+        {
+            public void Add(string word, string expectedSoundex)
+            {
+                Add(new TestWord(word, expectedSoundex));
+            }
+        }
+
+        private class TestWord
+        {
+            public TestWord(string word, string expectedSoundex)
+            {
+                Word = word;
+                ExpectedSoundex = expectedSoundex;
+                ActualSoundex = Soundex(word);
+            }
+
+            public string Word { get; private set; }
+            public string ExpectedSoundex { get; private set; }
+            public string ActualSoundex { get; private set; }
+        }
+
+        private static string Soundex(string word)
+        {
+            const string soundexAlphabet = "0123012#02245501262301#202";
+            string soundexString = "";
+            char lastSoundexChar = '?';
+            word = word.ToUpper();
+
+            foreach (var c in from ch in word
+                              where ch >= 'A' &&
+                                    ch <= 'Z' &&
+                                    soundexString.Length < 4
+                              select ch)
+            {
+                char thisSoundexChar = soundexAlphabet[c - 'A'];
+
+                if (soundexString.Length == 0)
+                    soundexString += c;
+                else if (thisSoundexChar == '#')
+                    continue;
+                else if (thisSoundexChar != '0' &&
+                         thisSoundexChar != lastSoundexChar)
+                    soundexString += thisSoundexChar;
+
+                lastSoundexChar = thisSoundexChar;
+            }
+
+            return soundexString.PadRight(4, '0');
+        }
+    }
+}