官方的正则表达式组件 RegularExpressions (3) : TMatchEvaluator

作者: 万一
发布时间:2015-07-01 14:32:51


  unit Unit1;    interface    uses    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,    Dialogs, StdCtrls, RegularExpressions;    type    TForm1 = class(TForm)      Memo1: TMemo;      Button1: TButton;      procedure Button1Click(Sender: TObject);    private      function MyMatchEvaluator(const Match: TMatch): string; //TMatchEvaluator = function(const Match: TMatch): string of object;    public    end;    var    Form1: TForm1;    implementation    {$R *.dfm}    const    pattern = '[A-Z]+\d+';    txt = 'AAA1 BBB2 AA11 BB22 A111 B222 AAAA';    procedure TForm1.Button1Click(Sender: TObject);  begin    Memo1.Text := TRegEx.Replace(txt, pattern, MyMatchEvaluator); //aaa1 bbb2 aa11 bb22 a111 b222 AAAA  end;    function TForm1.MyMatchEvaluator(const Match: TMatch): string;  begin    Result := LowerCase(Match.Value);  end;    end.  

来源:http://www.cnblogs.com/del/archive/2011/03/28/1998206.html

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