Match.NextMatch メソッドとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

Match.NextMatch メソッド

一致する対象が最後に見つかった位置 (最後に一致した文字の後ろの文字) から開始して、次に一致する対象を検索した結果の Match を返します。

名前空間: System.Text.RegularExpressions
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Function NextMatch As
 Match

Visual Basic (使用法)

Dim instance As Match
Dim returnValue As Match

returnValue = instance.NextMatch

public Match NextMatch ()

C++

public:
Match^ NextMatch ()

public Match NextMatch ()

JScript

public function NextMatch () : Match

戻り値
次の正規表現 Match オブジェクト。

解説

この関数は Match を再び呼び出し、新しい開始位置として (Index+Length) を渡すのと似ていますが、文字列の末尾に達するまで検索を続行し、ゼロ長の一致にも対応する点で、直接 Match を呼び出すのとは異なります。

使用例

Visual Basic

Dim text As String = "One
 car red car blue car"
Dim pat As String = "(\w+)\s+(car)"
' Compile the regular expression.
Dim r As Regex = new Regex(pat,
 RegexOptions.IgnoreCase)
' Match the regular expression pattern against a text string.
Dim m As Match = r.Match(text)
Dim matchcount as Integer
 = 0
While (m.Success)
   matchCount += 1
   Console.WriteLine("Match" & (matchCount))
   Dim i As Integer
   For i = 1 to 2
      Dim g as Group = m.Groups(i)
      Console.WriteLine("Group" & i & "='"
 & g.ToString() & "'")
      Dim cc As CaptureCollection = g.Captures
      Dim j As Integer 
      For j = 0 to cc.Count - 1
     Dim c As Capture = cc(j)
         Console.WriteLine("Capture" & j &
 "='" & c.ToString() _
            & "', Position=" & c.Index)
      Next j
   Next i
   m = m.NextMatch()
End While

string text = "One car red car blue car";
string pat = @"(\w+)\s+(car)";
// Compile the regular expression.
Regex r = new Regex(pat, RegexOptions.IgnoreCase);
// Match the regular expression pattern against a text string.
Match m = r.Match(text);
int matchCount = 0;
while (m.Success) 
{
   Console.WriteLine("Match"+ (++matchCount));
   for (int i = 1; i <= 2; i++) 
   {
      Group g = m.Groups[i];
      Console.WriteLine("Group"+i+"='" + g + "'");
      CaptureCollection cc = g.Captures;
      for (int j = 0; j < cc.Count; j++)
 
      {
         Capture c = cc[j];
         System.Console.WriteLine("Capture"+j+"='" + c + "',
 Position="+c.Index);
      }
   }
   m = m.NextMatch();
}

C++

String^ text = "One car red car blue car";
String^ pat = "(\\w+)\\s+(car)";

// Compile the regular expression.
Regex^ r = gcnew Regex( pat,RegexOptions::IgnoreCase );

// Match the regular expression pattern against a text string.
Match^ m = r->Match(text);
int matchCount = 0;
while ( m->Success )
{
   Console::WriteLine( "Match{0}", ++matchCount );
   for ( int i = 1; i <= 2; i++ )
   {
      Group^ g = m->Groups[ i ];
      Console::WriteLine( "Group{0}='{1}'", i, g );
      CaptureCollection^ cc = g->Captures;
      for ( int j = 0; j < cc->Count;
 j++ )
      {
         Capture^ c = cc[ j ];
         System::Console::WriteLine( "Capture{0}='{1}', Position={2}",
 j, c, c->Index );
      }
   }
   m = m->NextMatch();
}