synhighlighterhaskell.pas

SynEditStudio delphi 代码编辑器

    begin
      inc(Run);
      FExtTokenID := xtkSubtract;
    end;
  end;
end;

procedure TSynHaskellSyn.ModSymbolProc;
begin
  fTokenID := tkSymbol;
  case FLine[Run + 1] of
    '=':                               {mod assign}
      begin
        inc(Run, 2);
        FExtTokenID := xtkModAssign;
      end;
  else                                 {mod}
    begin
      inc(Run);
      FExtTokenID := xtkMod;
    end;
  end;
end;

procedure TSynHaskellSyn.NotSymbolProc;
begin
  fTokenID := tkSymbol;
  case FLine[Run + 1] of
    '=':                               {not equal}
      begin
        inc(Run, 2);
        FExtTokenID := xtkNotEqual;
      end;
  else                                 {not}
    begin
      inc(Run);
      FExtTokenID := xtkLogComplement;
    end;
  end;
end;

procedure TSynHaskellSyn.NullProc;
begin
  fTokenID := tkNull;
end;

procedure TSynHaskellSyn.NumberProc;
begin
  inc(Run);
  fTokenID := tkNumber;
  while FLine[Run] in
    ['0'..'9', 'A'..'F', 'a'..'f', '.', 'u', 'U', 'l', 'L', 'x', 'X'] do
  begin
    case FLine[Run] of
      '.':
        if FLine[Run + 1] = '.' then break;
    end;
    inc(Run);
  end;
end;

procedure TSynHaskellSyn.OrSymbolProc;
begin
  fTokenID := tkSymbol;
  case FLine[Run + 1] of
    '=':                               {or assign}
      begin
        inc(Run, 2);
        FExtTokenID := xtkIncOrAssign;
      end;
    '|':                               {logical or}
      begin
        inc(Run, 2);
        FExtTokenID := xtkLogOr;
      end;
  else                                 {or}
    begin
      inc(Run);
      FExtTokenID := xtkIncOr;
    end;
  end;
end;

procedure TSynHaskellSyn.PlusProc;
begin
  fTokenID := tkSymbol;
  case FLine[Run + 1] of
    '=':                               {add assign}
      begin
        inc(Run, 2);
        FExtTokenID := xtkAddAssign;
      end;
    '+':                               {increment}
      begin
        inc(Run, 2);
        FExtTokenID := xtkIncrement;
      end;
  else                                 {add}
    begin
      inc(Run);
      FExtTokenID := xtkAdd;
    end;
  end;
end;

procedure TSynHaskellSyn.PointProc;
begin
  fTokenID := tkSymbol;
  if (FLine[Run + 1] = '.') and (FLine[Run + 2] = '.') then
    begin                              {ellipse}
      inc(Run, 3);
      FExtTokenID := xtkEllipse;
    end
  else                                 {point}
    begin
      inc(Run);
      FExtTokenID := xtkPoint;
    end;
end;

procedure TSynHaskellSyn.RoundCloseProc;
begin
  inc(Run);
  fTokenID := tkSymbol;
  FExtTokenID := xtkRoundClose;
end;

procedure TSynHaskellSyn.RoundOpenProc;
begin
  inc(Run);
  FTokenID := tkSymbol;
  FExtTokenID := xtkRoundOpen;
end;

procedure TSynHaskellSyn.SemiColonProc;
begin
  inc(Run);
  fTokenID := tkSymbol;
  FExtTokenID := xtkSemiColon;
  if fRange = rsAsm then fRange := rsUnknown;
end;

procedure TSynHaskellSyn.SlashProc;
begin
  case FLine[Run + 1] of
    '=':                               {divide assign}
      begin
        inc(Run, 2);
        fTokenID := tkSymbol;
        FExtTokenID := xtkDivideAssign;
      end;
  else                                 {divide}
    begin
      inc(Run);
      fTokenID := tkSymbol;
      FExtTokenID := xtkDivide;
    end;
  end;
end;

procedure TSynHaskellSyn.SpaceProc;
begin
  inc(Run);
  fTokenID := tkSpace;
  while FLine[Run] in [#1..#9, #11, #12, #14..#32] do inc(Run);
end;

procedure TSynHaskellSyn.SquareCloseProc;
begin
  inc(Run);
  fTokenID := tkSymbol;
  FExtTokenID := xtkSquareClose;
end;

procedure TSynHaskellSyn.SquareOpenProc;
begin
  inc(Run);
  fTokenID := tkSymbol;
  FExtTokenID := xtkSquareOpen;
end;

procedure TSynHaskellSyn.StarProc;
begin
  fTokenID := tkSymbol;
  case FLine[Run + 1] of
    '=':                               {multiply assign}
      begin
        inc(Run, 2);
        FExtTokenID := xtkMultiplyAssign;
      end;
  else                                 {star}
    begin
      inc(Run);
      FExtTokenID := xtkStar;
    end;
  end;
end;

procedure TSynHaskellSyn.StringProc;
begin
  fTokenID := tkString;
  repeat
    if fLine[Run] = '\' then begin
      if fLine[Run + 1] in [#34, '\'] then
        Inc(Run);
    end;
    inc(Run);
  until fLine[Run] in [#0, #10, #13, #34];
  if FLine[Run] = #34 then
    inc(Run);
end;

procedure TSynHaskellSyn.TildeProc;
begin
  inc(Run);                            {bitwise complement}
  fTokenId := tkSymbol;
  FExtTokenID := xtkBitComplement;
end;

procedure TSynHaskellSyn.XOrSymbolProc;
begin
  fTokenID := tkSymbol;
  Case FLine[Run + 1] of
    '=':                               {xor assign}
      begin
        inc(Run, 2);
        FExtTokenID := xtkXorAssign;
      end;
  else                                 {xor}
    begin
      inc(Run);
      FExtTokenID := xtkXor;
    end;
  end;
end;

procedure TSynHaskellSyn.UnknownProc;
begin
{$IFDEF SYN_MBCSSUPPORT}
  if FLine[Run] in LeadBytes then
    Inc(Run, 2)
  else
{$ENDIF}
  inc(Run);
  fTokenID := tkUnknown;
end;

procedure TSynHaskellSyn.Next;
begin
  fAsmStart := False;
  fTokenPos := Run;
  case fRange of
    rsAnsiC, rsAnsiCAsm,
    rsAnsiCAsmBlock: AnsiCProc;
  else
    begin
      fRange := rsUnknown;
      fProcTable[fLine[Run]];
    end;
  end;
end;

function TSynHaskellSyn.GetDefaultAttribute(Index: integer): TSynHighlighterAttributes;
begin
  case Index of
    SYN_ATTR_COMMENT: Result := fCommentAttri;
    SYN_ATTR_IDENTIFIER: Result := fIdentifierAttri;
    SYN_ATTR_KEYWORD: Result := fKeyAttri;
    SYN_ATTR_STRING: Result := fStringAttri;
    SYN_ATTR_WHITESPACE: Result := fSpaceAttri;
    else Result := nil;
  end;
end;

function TSynHaskellSyn.GetEol: Boolean;
begin
  Result := fTokenID = tkNull;
end;

function TSynHaskellSyn.GetRange: Pointer;
begin
  Result := Pointer(fRange);
end;

function TSynHaskellSyn.GetToken: String;
var
  Len: LongInt;
begin
  Len := Run - fTokenPos;
  SetString(Result, (FLine + fTokenPos), Len);
end;

function TSynHaskellSyn.GetTokenID: TtkTokenKind;
begin
  Result := fTokenId;
end;

function TSynHaskellSyn.GetExtTokenID: TxtkTokenKind;
begin
  Result := FExtTokenID;
end;

function TSynHaskellSyn.GetTokenAttribute: TSynHighlighterAttributes;
begin
  case fTokenID of
    tkComment: Result := fCommentAttri;
    tkIdentifier: Result := fIdentifierAttri;
    tkKey: Result := fKeyAttri;
    tkNumber: Result := fNumberAttri;
    tkSpace: Result := fSpaceAttri;
    tkString: Result := fStringAttri;
    tkSymbol: Result := fSymbolAttri;
    else Result := nil;
  end;
end;

function TSynHaskellSyn.GetTokenKind: integer;
begin
  Result := Ord(GetTokenID);
end;

function TSynHaskellSyn.GetTokenPos: Integer;
begin
  Result := fTokenPos;
end;

procedure TSynHaskellSyn.ResetRange;
begin
  fRange:= rsUnknown;
end;

procedure TSynHaskellSyn.SetRange(Value: Pointer);
begin
  fRange := TRangeState(Value);
end;

procedure TSynHaskellSyn.EnumUserSettings(settings: TStrings);
begin
  {$IFNDEF SYN_CLX}
  { returns the user settings that exist in the registry }
  with TBetterRegistry.Create do
  begin
    try
      RootKey := HKEY_LOCAL_MACHINE;
      if OpenKeyReadOnly('\SOFTWARE\Borland\C++Builder') then
      begin
        try
          GetKeyNames(settings);
        finally
          CloseKey;
        end;
      end;
    finally
      Free;
    end;
  end;
  {$ENDIF}
end;

function TSynHaskellSyn.GetIdentChars: TSynIdentChars;
begin
  Result := ['_', '0'..'9', 'a'..'z', 'A'..'Z'];
end;

function TSynHaskellSyn.IsFilterStored: Boolean;
begin
  Result := fDefaultFilter <> SYNS_FilterHaskell;
end;

class function TSynHaskellSyn.GetLanguageName: string;
begin
  Result := SYNS_LangHaskell;
end;

class function TSynHaskellSyn.GetCapabilities: TSynHighlighterCapabilities;
begin
  Result := inherited GetCapabilities + [hcUserSettings];
end;

function TSynHaskellSyn.GetSampleSource: string;
begin
  Result := '-- Haskell Sample Source'#13#10 +
            'tail :: [a] -> [a]'#13#10 +
            'tail (x:xs) = xs'#13#10 +
            '';
end;

initialization
  MakeIdentTable;
{$IFNDEF SYN_CPPB_1}
  RegisterPlaceableHighlighter(TSynHaskellSyn);
{$ENDIF}
end.