154 lines
3.5 KiB
C#
154 lines
3.5 KiB
C#
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using NUnit.Framework;
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namespace Lucene.Net.Util
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{
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public class English
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{
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public static System.String IntToEnglish(int i)
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{
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System.Text.StringBuilder result = new System.Text.StringBuilder();
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IntToEnglish(i, result);
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return result.ToString();
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}
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public static void IntToEnglish(int i, System.Text.StringBuilder result)
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{
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if (i == 0)
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{
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result.Append("zero");
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return ;
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}
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if (i < 0)
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{
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result.Append("minus ");
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i = - i;
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}
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if (i >= 1000000000)
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{
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// billions
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IntToEnglish(i / 1000000000, result);
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result.Append("billion, ");
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i = i % 1000000000;
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}
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if (i >= 1000000)
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{
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// millions
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IntToEnglish(i / 1000000, result);
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result.Append("million, ");
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i = i % 1000000;
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}
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if (i >= 1000)
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{
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// thousands
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IntToEnglish(i / 1000, result);
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result.Append("thousand, ");
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i = i % 1000;
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}
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if (i >= 100)
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{
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// hundreds
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IntToEnglish(i / 100, result);
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result.Append("hundred ");
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i = i % 100;
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}
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if (i >= 20)
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{
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switch (i / 10)
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{
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case 9: result.Append("ninety"); break;
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case 8: result.Append("eighty"); break;
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case 7: result.Append("seventy"); break;
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case 6: result.Append("sixty"); break;
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case 5: result.Append("fifty"); break;
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case 4: result.Append("forty"); break;
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case 3: result.Append("thirty"); break;
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case 2: result.Append("twenty"); break;
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}
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i = i % 10;
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if (i == 0)
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result.Append(" ");
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else
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result.Append("-");
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}
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switch (i)
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{
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case 19: result.Append("nineteen "); break;
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case 18: result.Append("eighteen "); break;
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case 17: result.Append("seventeen "); break;
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case 16: result.Append("sixteen "); break;
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case 15: result.Append("fifteen "); break;
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case 14: result.Append("fourteen "); break;
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case 13: result.Append("thirteen "); break;
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case 12: result.Append("twelve "); break;
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case 11: result.Append("eleven "); break;
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case 10: result.Append("ten "); break;
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case 9: result.Append("nine "); break;
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case 8: result.Append("eight "); break;
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case 7: result.Append("seven "); break;
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case 6: result.Append("six "); break;
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case 5: result.Append("five "); break;
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case 4: result.Append("four "); break;
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case 3: result.Append("three "); break;
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case 2: result.Append("two "); break;
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case 1: result.Append("one "); break;
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case 0: result.Append(""); break;
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}
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}
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[STAThread]
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public static void Main(System.String[] args)
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{
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System.Console.Out.WriteLine(IntToEnglish(System.Int32.Parse(args[0])));
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}
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}
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}
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