psvvbscript.pas

PIC 单片机 PAS SOURCE CODE SAMPLES

begin
  if KeyComp('ReDim') then Result := tkKey else
    if KeyComp('Not') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func54: TtkTokenKind;
begin
  if KeyComp('Class') then Result := tkKey else Result := tkIdentifier;
end;

{begin}                                                                         //LVK 2000-08-11
function TpsvVBScriptRTF.Func56: TtkTokenKind;
begin
  if KeyComp('Byref') then Result := tkKey else Result := tkIdentifier;
end;
{end}                                                                           //LVK 2000-08-11

function TpsvVBScriptRTF.Func57: TtkTokenKind;
begin
  if KeyComp('Xor') then Result := tkKey else
    if KeyComp('While') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func58: TtkTokenKind;
begin
  if KeyComp('Loop') then Result := tkKey else
    if KeyComp('Exit') then Result := tkKey else Result := tkIdentifier;
end;

{begin}                                                                         //LVK 2000-08-11
function TpsvVBScriptRTF.Func62: TtkTokenKind;
begin
  if KeyComp('Byval') then Result := tkKey else Result := tkIdentifier;
end;
{end}                                                                           //LVK 2000-08-11

function TpsvVBScriptRTF.Func63: TtkTokenKind;
begin
  if KeyComp('Next') then Result := tkKey else
    if KeyComp('Public') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func64: TtkTokenKind;
begin
  if KeyComp('Select') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func71: TtkTokenKind;
begin
  if KeyComp('Const') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func74: TtkTokenKind;
begin
  if KeyComp('Error') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func89: TtkTokenKind;
begin
  if KeyComp('Option') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func91: TtkTokenKind;
begin
  if KeyComp('Private') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func98: TtkTokenKind;
begin
  if KeyComp('Explicit') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func102: TtkTokenKind;
begin
  if KeyComp('Function') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func105: TtkTokenKind;
begin
  if KeyComp('Randomize') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.Func133: TtkTokenKind;
begin
  if KeyComp('property') then Result := tkKey else Result := tkIdentifier;
end;

function TpsvVBScriptRTF.AltFunc: TtkTokenKind;
begin
  Result := tkIdentifier;
end;

function TpsvVBScriptRTF.IdentKind(MayBe: PChar): TtkTokenKind;
var
  HashKey: Integer;
begin
  fToIdent := MayBe;
  HashKey := KeyHash(MayBe);
  if HashKey < 134 then
    Result := fIdentFuncTable[HashKey]
  else
    Result := tkIdentifier;
end;

procedure TpsvVBScriptRTF.MakeMethodTables;
var
  I: Char;
begin
  for I := #0 to #255 do
    case I of
      #39: fProcTable[I] := ApostropheProc;
      #13: fProcTable[I] := CRProc;
      '#': fProcTable[I] := DateProc;
      '>': fProcTable[I] := GreaterProc;
      'A'..'Z', 'a'..'z', '_': fProcTable[I] := IdentProc;
      #10: fProcTable[I] := LFProc;
      '<': fProcTable[I] := LowerProc;
      #0: fProcTable[I] := NullProc;
      '0'..'9': fProcTable[I] := NumberProc;
      #1..#9, #11, #12, #14..#32: fProcTable[I] := SpaceProc;
      #34: fProcTable[I] := StringProc;
      '&', '{', '}', ':', ',', '=', '^', '-',
      '+', '.', '(', ')', ';', '/', '*': fProcTable[I] := SymbolProc;
      else fProcTable[I] := UnknownProc;
    end;
end;

constructor TpsvVBScriptRTF.Create;
begin
  inherited Create;
  InitIdent;
  MakeMethodTables;

  CreateColorTable([clGreen, //comment
                    clBlack, //identifier
                    clNavy,  //key
                    clBlue,  //number
                    clBlack,
                    clBlack,
                    clBlack,
                    clBlack]);

end;

procedure TpsvVBScriptRTF.SetLine(NewValue: String; LineNumber:Integer);
begin
  fLine := PChar(NewValue);
  Run := 0;
  fLineNumber := LineNumber;
  Next;
end;

procedure TpsvVBScriptRTF.ApostropheProc;
begin
  fTokenID := tkComment;
  repeat
    inc(Run);
  until fLine[Run] in [#0, #10, #13];
end;

procedure TpsvVBScriptRTF.CRProc;                  
begin
  fTokenID := tkSpace;
  inc(Run);
  if fLine[Run] = #10 then inc(Run);
end;

procedure TpsvVBScriptRTF.DateProc;
begin
  fTokenID := tkString;
  repeat
    case FLine[Run] of
      #0, #10, #13: break;
    end;
    inc(Run);
  until FLine[Run] = '#';
  if FLine[Run] <> #0 then inc(Run);
end;

procedure TpsvVBScriptRTF.GreaterProc;
begin
  fTokenID := tkSymbol;
  Inc(Run);
  if fLine[Run] = '=' then Inc(Run);
end;

procedure TpsvVBScriptRTF.IdentProc;
begin
  fTokenID := IdentKind((fLine + Run));
  inc(Run, fStringLen);
  while Identifiers[fLine[Run]] do inc(Run);
end;

procedure TpsvVBScriptRTF.LFProc;
begin
  fTokenID := tkSpace;
  inc(Run);
end;

procedure TpsvVBScriptRTF.LowerProc;
begin
  fTokenID := tkSymbol;
  Inc(Run);
  if fLine[Run] in ['=', '>'] then Inc(Run);
end;

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

procedure TpsvVBScriptRTF.NumberProc;
begin
  inc(Run);
  fTokenID := tkNumber;
  while FLine[Run] in ['0'..'9', '.', 'e', 'E'] do inc(Run);
end;

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

procedure TpsvVBScriptRTF.StringProc;
begin
  fTokenID := tkString;
  if (FLine[Run + 1] = #34) and (FLine[Run + 2] = #34) then inc(Run, 2);
  repeat
    case FLine[Run] of
      #0, #10, #13: break;
    end;
    inc(Run);
  until FLine[Run] = #34;
  if FLine[Run] <> #0 then inc(Run);
end;

procedure TpsvVBScriptRTF.SymbolProc;
begin
  inc(Run);
  fTokenID := tkSymbol;
end;

procedure TpsvVBScriptRTF.UnknownProc;
begin
  fTokenID := tkIdentifier;
  inc(Run);
end;

procedure TpsvVBScriptRTF.Next;
begin
  fTokenPos := Run;
  fProcTable[fLine[Run]];
end;


function TpsvVBScriptRTF.GetEol: Boolean;
begin
  Result := fTokenId = tkNull;
end;

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

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

function TpsvVBScriptRTF.GetTokenAttribute: integer;
begin
  case fTokenID of
    tkComment: Result := 1;
    tkIdentifier: Result := 2;
    tkKey: Result := 3;
    tkNumber: Result := 4;
    tkSpace: Result := 5;
    tkString: Result := 6;
    tkSymbol: Result := 7;
    tkUnknown: Result := 8;
    else Result := 8;
  end;
end;

function TpsvVBScriptRTF.GetTokenKind: integer;
begin
  Result := Ord(fTokenId);
end;

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


procedure TpsvVBScriptRTF.PrepareToken(var AToken : string);
var St : string;
begin
  St := AToken;
  St := StringReplace(St,'\','\\',[rfReplaceAll]);
  St := StringReplace(St,'{','\{',[rfReplaceAll]);
  St := StringReplace(St,'}','\}',[rfReplaceAll]);
  AToken := St;
end;

procedure TpsvVBScriptRTF.SetupDefaultColors;
begin
  CreateColorTable([clGreen, //comment
                    clBlack, //identifier
                    clNavy,  //key
                    clBlue,  //number
                    clBlack,
                    clBlack,
                    clBlack,
                    clBlack]);
end;

initialization
  MakeIdentTable;
end.