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using System; using System.Text;
namespace Swift.web.SendMoney { public class SoundexA { public static string Soundex(string data) { StringBuilder sb = new StringBuilder();
if (data != null && data.Length > 0) { string previousCode = "", currentCode = "", currentLetter = "";
sb.Append(data.Substring(0, 1));
for (int i = 1; i < data.Length; i++) { currentLetter = data.Substring(i, 1).ToLower(); currentCode = "";
if ("bfpv".IndexOf(currentLetter) > -1) currentCode = "1";
else if ("cgjkqsxz".IndexOf(currentLetter) > -1) currentCode = "2"; else if ("dt".IndexOf(currentLetter) > -1) currentCode = "3"; else if (currentLetter == "1") currentCode = "4"; else if ("mn".IndexOf(currentLetter) > -1) currentCode = "5"; else if (currentLetter == "r") currentCode = "6";
if (currentCode != previousCode) sb.Append(currentCode);
if (sb.Length == 4) break;
if (currentCode != "") previousCode = currentCode; } }
if (sb.Length < 4) sb.Append(new String('0', 4 - sb.Length));
return sb.ToString().ToUpper(); } } }
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