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...highlight HTML-Tags in TRichEdit?
Autor: Ronald Rethfeldt
Homepage: http://www.rogasoft.de
[ Print tip ]  

Tip Rating (14):  
     




procedure HTMLSyntax(RichEdit: TRichEdit; TextCol, TagCol, DopCol: TColor);
var 
  
i, iDop: Integer;
  s: string;
  Col: TColor;
  isTag, isDop: Boolean;
begin
  
iDop := 0;
  isDop := False;
  isTag := False;
  Col := TextCol;
  RichEdit.SetFocus;

  for i := 0 to Length(RichEdit.Text) do
  begin
    
RichEdit.SelStart := i;
    RichEdit.SelLength := 1;
    s := RichEdit.SelText;

    if (s = '<') or (s = '{') then isTag := True;

    if isTag then
      if 
(s = '"') then
        if not 
isDop then
        begin
          
iDop  := 1;
          isDop := True;
        end 
        else
          
isDop := False;

    if isTag then
      if 
isDop then
      begin
        if 
iDop <> 1 then Col := DopCol;
      end 
      else
        
Col := TagCol
    else
      
Col := TextCol;

    RichEdit.SelAttributes.Color := Col;

    iDop := 0;

    if (s = '>') or (s = '}') then isTag := False;
  end;
  
  RichEdit.SelLength := 0;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  
RichEdit1.Lines.BeginUpdate;
  HTMLSyntax(RichEdit1, clBlue, clRed, clGreen);
  RichEdit1.Lines.EndUpdate;
end;

 

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