C# - 文字列(StringBuilderクラス、Regexクラス)

開発環境

• Microsoft Windows 7 Home Premium (OS)
• Microsoft Visual C# 2010 Express Edition (IDE)
• 言語: C#

『初めてのC# 第2版』(Jesse Liberty+Brian MacDonald著、日向俊二訳、オライリー・ジャパン、2006年、ISBN978-487311-294-7)の 第15章(文字列)15.6(練習問題)、練習15-2を解いてみる。

練習15-2

コード

using System;
using System.Text;
using System.Text.RegularExpressions;

namespace Sample
{
    class Tester
    {
        public void Run()
        {
            string str = "We hold these truths to be self-evident," +
                "aht all men are created equal," +
                "that they are endowed by their Creator " +
                "with certain unalienable Rights," +
                "that among these are Life," +
                "Liberty and the pursuit of Happiness.";
            StringBuilder sBuilder = new StringBuilder();
            Regex reg = new Regex(",| ");
            int i = 1;
            foreach (string subStr in reg.Split(str))
            {
                sBuilder.AppendFormat("{0}: {1}\n", i, subStr);
                i++;
            }
            Console.Write("{0}", sBuilder);
        }
        static void Main()
        {
            Tester t = new Tester();
            t.Run();
        }
    }
}

入出力結果(Console Window)

1: We
2: hold
3: these
4: truths
5: to
6: be
7: self-evident
8: aht
9: all
10: men
11: are
12: created
13: equal
14: that
15: they
16: are
17: endowed
18: by
19: their
20: Creator
21: with
22: certain
23: unalienable
24: Rights
25: that
26: among
27: these
28: are
29: Life
30: Liberty
31: and
32: the
33: pursuit
34: of
35: Happiness.
続行するには何かキーを押してください . . .