synhighlighterpaxpascal.pas

Delphi脚本控件

{------------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/

Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.

The Original Code is: SynHighlighterPas.pas, released 2000-04-17.
The Original Code is based on the mwPasSyn.pas file from the
mwEdit component suite by Martin Waldenburg and other developers, the Initial
Author of this file is Martin Waldenburg.
Portions created by Martin Waldenburg are Copyright (C) 1998 Martin Waldenburg.
All Rights Reserved.

Contributors to the SynEdit and mwEdit projects are listed in the
Contributors.txt file.

Alternatively, the contents of this file may be used under the terms of the
GNU General Public License Version 2 or later (the "GPL"), in which case
the provisions of the GPL are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the GPL and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the GPL.
If you do not delete the provisions above, a recipient may use your version
of this file under either the MPL or the GPL.

$Id: SynHighlighterPas.pas,v 1.17 2002/04/08 08:38:14 plpolak Exp $

You may retrieve the latest version of this file at the SynEdit home page,
located at http://SynEdit.SourceForge.net

Known Issues:
-------------------------------------------------------------------------------}
{
@abstract(Provides a Pascal/Delphi syntax highlighter for SynEdit)
@author(Martin Waldenburg)
@created(1998, converted to SynEdit 2000-04-07)
@lastmod(2001-11-21)
The SynHighlighterPas unit provides SynEdit with a Object Pascal syntax highlighter.
An extra boolean property "D4Syntax" is included to enable the recognition of the
advanced features found in Object Pascal in Delphi 4.
Three extra properties included (DelphiVersion, PackageSource):
  DelphiVersion - Allows you to enable/disable the highlighting of various
                  language enhancements added in the different Delphi versions.
  PackageSource - Allows you to enable/disable the highlighting of package keywords
}
unit SynHighlighterPaxPascal;

{$I SynEdit.inc}

interface

uses
  SysUtils,
  Classes,
{$IFDEF SYN_CLX} //js 07-04-2002 changed to SYN_CLX 
  QControls,
  QGraphics,
{$ELSE}
  Windows,
  Controls,
  Graphics,
{$ENDIF}
  SynEditTypes,
  SynEditHighlighter;

type
  TtkTokenKind = (tkAsm, tkComment, tkIdentifier, tkKey, tkNull, tkNumber,
    tkSpace, tkString, tkSymbol, tkUnknown, tkFloat, tkHex, tkDirec, tkChar); // dj

  TRangeState = (rsANil, rsAnsi, rsAnsiAsm, rsAsm, rsBor, rsBorAsm, rsProperty,
    rsExports, rsUnKnown);

  TProcTableProc = procedure of object;

  PIdentFuncTableFunc = ^TIdentFuncTableFunc;
  TIdentFuncTableFunc = function: TtkTokenKind of object;

  TDelphiVersion = (dvDelphi1, dvDelphi2, dvDelphi3, dvDelphi4, dvDelphi5,      //pp 2001-08-14
    dvDelphi6);

const
  LastDelphiVersion = dvDelphi6;                                                //pp 2001-08-14

type
  TSynPaxPascalSyn = class(TSynCustomHighlighter)
  private
    fAsmStart: Boolean;
    fRange: TRangeState;
    fLine: PChar;
    fLineNumber: Integer;
    fProcTable: array[#0..#255] of TProcTableProc;
    Run: LongInt;
    fStringLen: Integer;
    fToIdent: PChar;
    fIdentFuncTable: array[0..191] of TIdentFuncTableFunc;
    fTokenPos: Integer;
    FTokenID: TtkTokenKind;
    fStringAttri: TSynHighlighterAttributes;
    fCharAttri: TSynHighlighterAttributes;
    fNumberAttri: TSynHighlighterAttributes;
    fFloatAttri: TSynHighlighterAttributes;
    fHexAttri: TSynHighlighterAttributes;
    fKeyAttri: TSynHighlighterAttributes;
    fSymbolAttri: TSynHighlighterAttributes;
    fAsmAttri: TSynHighlighterAttributes;
    fCommentAttri: TSynHighlighterAttributes;
    fDirecAttri: TSynHighlighterAttributes;
    fIdentifierAttri: TSynHighlighterAttributes;
    fSpaceAttri: TSynHighlighterAttributes;
    fD4syntax: boolean;
    fDelphiVersion: TDelphiVersion;
    fPackageSource: Boolean;
    function KeyHash(ToHash: PChar): Integer;
    function KeyComp(const aKey: string): Boolean;
    function Func15: TtkTokenKind;
    function Func19: TtkTokenKind;
    function Func20: TtkTokenKind;
    function Func21: TtkTokenKind;
    function Func23: TtkTokenKind;
    function Func25: TtkTokenKind;
    function Func27: TtkTokenKind;
    function Func28: TtkTokenKind;
    function Func29: TtkTokenKind;                                              //pp 2001-08-13
    function Func32: TtkTokenKind;
    function Func33: TtkTokenKind;
    function Func35: TtkTokenKind;
    function Func37: TtkTokenKind;
    function Func38: TtkTokenKind;
    function Func39: TtkTokenKind;
    function Func40: TtkTokenKind;
    function Func41: TtkTokenKind;
    function Func44: TtkTokenKind;
    function Func45: TtkTokenKind;
    function Func47: TtkTokenKind;
    function Func49: TtkTokenKind;
    function Func52: TtkTokenKind;
    function Func54: TtkTokenKind;
    function Func55: TtkTokenKind;
    function Func56: TtkTokenKind;
    function Func57: TtkTokenKind;
    function Func59: TtkTokenKind;
    function Func60: TtkTokenKind;
    function Func61: TtkTokenKind;
    function Func63: TtkTokenKind;
    function Func64: TtkTokenKind;
    function Func65: TtkTokenKind;
    function Func66: TtkTokenKind;
    function Func69: TtkTokenKind;
    function Func71: TtkTokenKind;
    function Func73: TtkTokenKind;
    function Func75: TtkTokenKind;
    function Func76: TtkTokenKind;
    function Func79: TtkTokenKind;
    function Func81: TtkTokenKind;
    function Func84: TtkTokenKind;
    function Func85: TtkTokenKind;
    function Func87: TtkTokenKind;
    function Func88: TtkTokenKind;
    function Func91: TtkTokenKind;
    function Func92: TtkTokenKind;
    function Func94: TtkTokenKind;
    function Func95: TtkTokenKind;
    function Func96: TtkTokenKind;
    function Func97: TtkTokenKind;
    function Func98: TtkTokenKind;
    function Func99: TtkTokenKind;
    function Func100: TtkTokenKind;
    function Func101: TtkTokenKind;
    function Func102: TtkTokenKind;
    function Func103: TtkTokenKind;
    function Func105: TtkTokenKind;
    function Func106: TtkTokenKind;
    function Func112: TtkTokenKind;
    function Func117: TtkTokenKind;
    function Func126: TtkTokenKind;
    function Func129: TtkTokenKind;
    function Func132: TtkTokenKind;
    function Func133: TtkTokenKind;
    function Func136: TtkTokenKind;
    function Func141: TtkTokenKind;
    function Func143: TtkTokenKind;
    function Func166: TtkTokenKind;
    function Func168: TtkTokenKind;
    function Func191: TtkTokenKind;
    function AltFunc: TtkTokenKind;
    procedure InitIdent;
    function IdentKind(MayBe: PChar): TtkTokenKind;
    procedure MakeMethodTables;
    procedure AddressOpProc;
    procedure AsciiCharProc;
    procedure AnsiProc;
    procedure BorProc;
    procedure BraceOpenProc;
    procedure ColonOrGreaterProc;
    procedure CRProc;
    procedure IdentProc;
    procedure IntegerProc;
    procedure LFProc;
    procedure LowerProc;
    procedure NullProc;
    procedure NumberProc;
    procedure PointProc;
    procedure RoundOpenProc;
    procedure SemicolonProc;                                                    //mh 2000-10-08
    procedure SlashProc;
    procedure SpaceProc;
    procedure StringProc;
    procedure SymbolProc;
    procedure UnknownProc;
    procedure SetD4syntax(const Value: boolean);
    procedure SetDelphiVersion(const Value: TDelphiVersion);                    //pp 2001-08-14
    procedure SetPackageSource(const Value: Boolean);                           //pp 2001-08-14
  protected
    function GetIdentChars: TSynIdentChars; override;
    function GetSampleSource: string; override;                                 //pp 2001-08-13
    function IsFilterStored: boolean; override;                                 //mh 2000-10-08
  public
    {$IFNDEF SYN_CPPB_1} class {$ENDIF}
    function GetCapabilities: TSynHighlighterCapabilities; override;
    {$IFNDEF SYN_CPPB_1} class {$ENDIF}
    function GetLanguageName: string; override;
  public
    constructor Create(AOwner: TComponent); override;
    function GetDefaultAttribute(Index: integer): TSynHighlighterAttributes;
      override;
    function GetEol: Boolean; override;
    function GetRange: Pointer; override;
    function GetToken: string; override;
    function GetTokenAttribute: TSynHighlighterAttributes; override;
    function GetTokenID: TtkTokenKind;
    function GetTokenKind: integer; override;
    function GetTokenPos: Integer; override;
    procedure Next; override;
    procedure ResetRange; override;
    procedure SetLine(NewValue: string; LineNumber:Integer); override;
    procedure SetRange(Value: Pointer); override;
    function UseUserSettings(settingIndex: integer): boolean; override;
    procedure EnumUserSettings(settings: TStrings); override;
    property IdentChars;
  published
    property AsmAttri: TSynHighlighterAttributes read fAsmAttri write fAsmAttri;
    property CommentAttri: TSynHighlighterAttributes read fCommentAttri
      write fCommentAttri;
    property DirectiveAttri: TSynHighlighterAttributes read fDirecAttri
      write fDirecAttri;
    property IdentifierAttri: TSynHighlighterAttributes read fIdentifierAttri
      write fIdentifierAttri;
    property KeyAttri: TSynHighlighterAttributes read fKeyAttri write fKeyAttri;
    property NumberAttri: TSynHighlighterAttributes read fNumberAttri
      write fNumberAttri;
    property FloatAttri: TSynHighlighterAttributes read fFloatAttri
      write fFloatAttri;
    property HexAttri: TSynHighlighterAttributes read fHexAttri
      write fHexAttri;
    property SpaceAttri: TSynHighlighterAttributes read fSpaceAttri
      write fSpaceAttri;
    property StringAttri: TSynHighlighterAttributes read fStringAttri
      write fStringAttri;
    property CharAttri: TSynHighlighterAttributes read fCharAttri
      write fCharAttri;
    property SymbolAttri: TSynHighlighterAttributes read fSymbolAttri
      write fSymbolAttri;
    property D4syntax: boolean read fD4syntax write SetD4syntax stored False;
    property DelphiVersion: TDelphiVersion read fDelphiVersion write SetDelphiVersion
      default LastDelphiVersion;
    property PackageSource: Boolean read fPackageSource write SetPackageSource default True;
  end;

implementation

uses
{$IFDEF SYN_KYLIX}
  QDialogs,
{$ELSE}
  Dialogs,
{$ENDIF}
  SynEditStrConst;

var
  Identifiers: array[#0..#255] of ByteBool;
  mHashTable: array[#0..#255] of Integer;
  PaxPascalKeywords: TStringList;

procedure MakeIdentTable;
var
  I, J: Char;
begin
  for I := #0 to #255 do
  begin
    Case I of
      '_', '0'..'9', 'a'..'z', 'A'..'Z': Identifiers[I] := True;
    else Identifiers[I] := False;
    end;
    J := UpCase(I);
    Case I of
      'a'..'z', 'A'..'Z', '_': mHashTable[I] := Ord(J) - 64;
    else mHashTable[Char(I)] := 0;
    end;
  end;
end;

procedure TSynPaxPascalSyn.InitIdent;
var
  I: Integer;
  pF: PIdentFuncTableFunc;
begin
  pF := PIdentFuncTableFunc(@fIdentFuncTable);
  for I := Low(fIdentFuncTable) to High(fIdentFuncTable) do begin
    pF^ := AltFunc;
    Inc(pF);
  end;
  fIdentFuncTable[15] := Func15;
  fIdentFuncTable[19] := Func19;
  fIdentFuncTable[20] := Func20;
  fIdentFuncTable[21] := Func21;
  fIdentFuncTable[23] := Func23;
  fIdentFuncTable[25] := Func25;
  fIdentFuncTable[27] := Func27;
  fIdentFuncTable[28] := Func28;
  fIdentFuncTable[29] := Func29;                                                //pp 2001-08-13
  fIdentFuncTable[32] := Func32;
  fIdentFuncTable[33] := Func33;
  fIdentFuncTable[35] := Func35;
  fIdentFuncTable[37] := Func37;
  fIdentFuncTable[38] := Func38;
  fIdentFuncTable[39] := Func39;
  fIdentFuncTable[40] := Func40;
  fIdentFuncTable[41] := Func41;
  fIdentFuncTable[44] := Func44;
  fIdentFuncTable[45] := Func45;
  fIdentFuncTable[47] := Func47;
  fIdentFuncTable[49] := Func49;
  fIdentFuncTable[52] := Func52;
  fIdentFuncTable[54] := Func54;
  fIdentFuncTable[55] := Func55;
  fIdentFuncTable[56] := Func56;
  fIdentFuncTable[57] := Func57;
  fIdentFuncTable[59] := Func59;
  fIdentFuncTable[60] := Func60;
  fIdentFuncTable[61] := Func61;
  fIdentFuncTable[63] := Func63;
  fIdentFuncTable[64] := Func64;
  fIdentFuncTable[65] := Func65;
  fIdentFuncTable[66] := Func66;
  fIdentFuncTable[69] := Func69;
  fIdentFuncTable[71] := Func71;
  fIdentFuncTable[73] := Func73;
  fIdentFuncTable[75] := Func75;
  fIdentFuncTable[76] := Func76;
  fIdentFuncTable[79] := Func79;
  fIdentFuncTable[81] := Func81;
  fIdentFuncTable[84] := Func84;
  fIdentFuncTable[85] := Func85;
  fIdentFuncTable[87] := Func87;
  fIdentFuncTable[88] := Func88;
  fIdentFuncTable[91] := Func91;
  fIdentFuncTable[92] := Func92;
  fIdentFuncTable[94] := Func94;
  fIdentFuncTable[95] := Func95;
  fIdentFuncTable[96] := Func96;
  fIdentFuncTable[97] := Func97;
  fIdentFuncTable[98] := Func98;
  fIdentFuncTable[99] := Func99;
  fIdentFuncTable[100] := Func100;
  fIdentFuncTable[101] := Func101;
  fIdentFuncTable[102] := Func102;
  fIdentFuncTable[103] := Func103;
  fIdentFuncTable[105] := Func105;
  fIdentFuncTable[106] := Func106;
  fIdentFuncTable[112] := Func112;
  fIdentFuncTable[117] := Func117;
  fIdentFuncTable[126] := Func126;
  fIdentFuncTable[129] := Func129;
  fIdentFuncTable[132] := Func132;
  fIdentFuncTable[133] := Func133;
  fIdentFuncTable[136] := Func136;
  fIdentFuncTable[141] := Func141;
  fIdentFuncTable[143] := Func143;
  fIdentFuncTable[166] := Func166;
  fIdentFuncTable[168] := Func168;
  fIdentFuncTable[191] := Func191;
end;

function TSynPaxPascalSyn.KeyHash(ToHash: PChar): Integer;
begin
  while ToHash^ in ['a'..'z', 'A'..'Z'] do
    inc(ToHash);
  if ToHash^ in ['_', '0'..'9'] then inc(ToHash);
  fStringLen := ToHash - fToIdent;

  result := 15;
end; { KeyHash }

function TSynPaxPascalSyn.KeyComp(const aKey: string): Boolean;
var
  I: Integer;
  Temp: PChar;
begin
  Temp := fToIdent;
  if Length(aKey) = fStringLen then
  begin
    Result := True;
    for i := 1 to fStringLen do
    begin
      if mHashTable[Temp^] <> mHashTable[aKey[i]] then
      begin
        Result := False;
        break;
      end;
      inc(Temp);
    end;
  end else Result := False;
end; { KeyComp }

function TSynPaxPascalSyn.Func15: TtkTokenKind;
var
  I: Integer;
begin
  Result := tkIdentifier;
  for I:=0 to PaxPascalKeywords.Count - 1 do
    if KeyComp(PaxPascalKeywords[I]) then
    begin
      Result := tkKey;
      Exit;
    end;
end;

function TSynPaxPascalSyn.Func19: TtkTokenKind;
begin
  if KeyComp('Do') then Result := tkKey else
    if KeyComp('And') then Result := tkKey else Result := tkIdentifier;
end;

function TSynPaxPascalSyn.Func20: TtkTokenKind;
begin
  if KeyComp('As') then Result := tkKey else Result := tkIdentifier;
end;

function TSynPaxPascalSyn.Func21: TtkTokenKind;
begin
  if KeyComp('Of') then Result := tkKey else Result := tkIdentifier;
end;

function TSynPaxPascalSyn.Func23: TtkTokenKind;
begin
  if KeyComp('End') then
  begin
    Result := tkKey;
    fRange := rsUnknown;
  end
  else if KeyComp('In') then
    Result := tkKey
  else
    Result := tkIdentifier;
end;