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1151 lines
29 KiB
ObjectPascal
1151 lines
29 KiB
ObjectPascal
{-------------------------------------------------------------------------------
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The contents of this file are subject to the Mozilla Public License
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Version 1.1 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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the specific language governing rights and limitations under the License.
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The Original Code is: SynHighlighterHaskell.pas, released 2001-10-28
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The Original Code is based on the SynHighlighterCpp.pas, released 2000-04-10
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which in turn was based on the dcjCppSyn.pas file from the mwEdit component
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suite by Martin Waldenburg and other developers, the Initial Author of this file
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is Michael Trier. All Rights Reserved.
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Contributors to the SynEdit and mwEdit projects are listed in the
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Contributors.txt file.
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Alternatively, the contents of this file may be used under the terms of the
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GNU General Public License Version 2 or later (the "GPL"), in which case
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the provisions of the GPL are applicable instead of those above.
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If you wish to allow use of your version of this file only under the terms
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of the GPL and not to allow others to use your version of this file
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under the MPL, indicate your decision by deleting the provisions above and
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replace them with the notice and other provisions required by the GPL.
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If you do not delete the provisions above, a recipient may use your version
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of this file under either the MPL or the GPL.
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You may retrieve the latest version of SynEdit from the SynEdit home page,
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located at http://SynEdit.SourceForge.net
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You may retrieve the latest version of this file from
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http://www.ashleybrown.co.uk/synedit/
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-------------------------------------------------------------------------------}
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{
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@abstract(Provides a Haskell syntax highlighter for SynEdit)
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@author(Ashley Brown)
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@created(2001)
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@lastmod(2000-10-26)
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The SynHighlighterHaskell unit provides SynEdit with a Haskell syntax highlighter.
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Based on SynHighlighterCpp.
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http://haskell.org/
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http://www.ashleybrown.co.uk/
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ashley@ashleybrown.co.uk
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}
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unit SynHighlighterHaskell;
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// extrasyn.inc is the synedit.inc from laz 1.2.0 synedit package source,
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// If it has changed in newer version you might need to copy it again.
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// Remember to redclare the syn_lazarus define.
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{$I extrasyn.inc}
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interface
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uses
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Graphics,
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SynEditTypes,
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SynEditHighlighter,
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Classes;
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type
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TtkTokenKind = (tkComment, tkIdentifier, tkKey, tkNull,
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tkNumber, tkSpace, tkString, tkSymbol, tkUnknown);
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TxtkTokenKind = (
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xtkAdd, xtkAddAssign, xtkAnd, xtkAndAssign, xtkArrow, xtkAssign,
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xtkBitComplement, xtkBraceClose, xtkBraceOpen, xtkColon, xtkComma,
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xtkDecrement, xtkDivide, xtkDivideAssign, xtkEllipse, xtkGreaterThan,
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xtkGreaterThanEqual, xtkIncOr, xtkIncOrAssign, xtkIncrement, xtkLessThan,
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xtkLessThanEqual, xtkLogAnd, xtkLogComplement, xtkLogEqual, xtkLogOr,
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xtkMod, xtkModAssign, xtkMultiplyAssign, xtkNotEqual, xtkPoint, xtkQuestion,
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xtkRoundClose, xtkRoundOpen, xtkScopeResolution, xtkSemiColon, xtkShiftLeft,
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xtkShiftLeftAssign, xtkShiftRight, xtkShiftRightAssign, xtkSquareClose,
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xtkSquareOpen, xtkStar, xtkSubtract, xtkSubtractAssign, xtkXor,
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xtkXorAssign);
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TRangeState = (rsUnknown, rsAnsiC, rsAnsiCAsm, rsAnsiCAsmBlock, rsAsm,
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rsAsmBlock, rsDirective, rsDirectiveComment, rsString34, rsString39);
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TProcTableProc = procedure of object;
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PIdentFuncTableFunc = ^TIdentFuncTableFunc;
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TIdentFuncTableFunc = function: TtkTokenKind of object;
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TSynHaskellSyn = class(TSynCustomHighlighter)
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private
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fAsmStart: Boolean;
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fRange: TRangeState;
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fLine: PChar;
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fProcTable: array[#0..#255] of TProcTableProc;
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Run: LongInt;
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fStringLen: Integer;
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fToIdent: PChar;
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fTokenPos: Integer;
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FTokenID: TtkTokenKind;
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FExtTokenID: TxtkTokenKind;
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fLineNumber: Integer;
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fIdentFuncTable: array[0..206] of TIdentFuncTableFunc;
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fCommentAttri: TSynHighlighterAttributes;
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fIdentifierAttri: TSynHighlighterAttributes;
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fKeyAttri: TSynHighlighterAttributes;
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fNumberAttri: TSynHighlighterAttributes;
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fSpaceAttri: TSynHighlighterAttributes;
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fStringAttri: TSynHighlighterAttributes;
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fSymbolAttri: TSynHighlighterAttributes;
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function KeyHash(ToHash: PChar): Integer;
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function KeyComp(const aKey: String): Boolean;
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function Func17: TtkTokenKind;
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function Func24: TtkTokenKind;
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function Func25: TtkTokenKind;
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function Func30: TtkTokenKind;
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function Func33: TtkTokenKind;
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function Func40: TtkTokenKind;
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function Func45: TtkTokenKind;
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function Func47: TtkTokenKind;
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function Func51: TtkTokenKind;
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function Func58: TtkTokenKind;
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function Func59: TtkTokenKind;
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function Func64: TtkTokenKind;
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function Func67: TtkTokenKind;
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function Func70: TtkTokenKind;
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function Func76: TtkTokenKind;
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function Func84: TtkTokenKind;
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function Func92: TtkTokenKind;
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function Func93: TtkTokenKind;
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function Func96: TtkTokenKind;
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function Func97: TtkTokenKind;
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function Func131: TtkTokenKind;
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procedure AnsiCProc;
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procedure AndSymbolProc;
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procedure AsciiCharProc;
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procedure AtSymbolProc;
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procedure BraceCloseProc;
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procedure BraceOpenProc;
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procedure CRProc;
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procedure ColonProc;
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procedure CommaProc;
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procedure EqualProc;
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procedure GreaterProc;
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procedure IdentProc;
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procedure LFProc;
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procedure LowerProc;
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procedure MinusProc;
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procedure ModSymbolProc;
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procedure NotSymbolProc;
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procedure NullProc;
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procedure NumberProc;
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procedure OrSymbolProc;
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procedure PlusProc;
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procedure PointProc;
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procedure QuestionProc;
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procedure RoundCloseProc;
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procedure RoundOpenProc;
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procedure SemiColonProc;
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procedure SlashProc;
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procedure SpaceProc;
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procedure SquareCloseProc;
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procedure SquareOpenProc;
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procedure StarProc;
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procedure StringProc;
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procedure TildeProc;
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procedure XOrSymbolProc;
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procedure UnknownProc;
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function AltFunc: TtkTokenKind;
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procedure InitIdent;
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function IdentKind(MayBe: PChar): TtkTokenKind;
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procedure MakeMethodTables;
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protected
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function GetSampleSource: string; override;
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function GetIdentChars: TSynIdentChars; override;
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function GetExtTokenID: TxtkTokenKind;
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function IsFilterStored: Boolean; override;
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public
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class function GetCapabilities: TSynHighlighterCapabilities; override;
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class function GetLanguageName: string; override;
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public
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constructor Create(AOwner: TComponent); override;
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function GetDefaultAttribute(Index: integer): TSynHighlighterAttributes;
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override;
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function GetEol: Boolean; override;
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function GetRange: Pointer; override;
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function GetTokenID: TtkTokenKind;
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procedure SetLine(const NewValue: String; LineNumber:Integer); override;
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function GetToken: String; override;
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{$IFDEF SYN_LAZARUS}
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procedure GetTokenEx(out TokenStart: PChar; out TokenLength: integer); override;
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{$ENDIF}
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function GetTokenAttribute: TSynHighlighterAttributes; override;
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function GetTokenKind: integer; override;
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function GetTokenPos: Integer; override;
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procedure Next; override;
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procedure SetRange(Value: Pointer); override;
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procedure ResetRange; override;
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property ExtTokenID: TxtkTokenKind read GetExtTokenID;
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published
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property CommentAttri: TSynHighlighterAttributes read fCommentAttri
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write fCommentAttri;
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property IdentifierAttri: TSynHighlighterAttributes read fIdentifierAttri
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write fIdentifierAttri;
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property KeyAttri: TSynHighlighterAttributes read fKeyAttri write fKeyAttri;
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property NumberAttri: TSynHighlighterAttributes read fNumberAttri
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write fNumberAttri;
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property SpaceAttri: TSynHighlighterAttributes read fSpaceAttri
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write fSpaceAttri;
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property StringAttri: TSynHighlighterAttributes read fStringAttri
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write fStringAttri;
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property SymbolAttri: TSynHighlighterAttributes read fSymbolAttri
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write fSymbolAttri;
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end;
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implementation
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uses
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SynEditStrConst, SynEditStrConstExtra;
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var
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Identifiers: array[#0..#255] of ByteBool;
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mHashTable: array[#0..#255] of Integer;
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procedure MakeIdentTable;
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var
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I: Char;
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begin
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for I := #0 to #255 do
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begin
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Case I of
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'_', '0'..'9', 'a'..'z', 'A'..'Z', #39:
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Identifiers[I] := True;
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else
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Identifiers[I] := False;
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end;
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Case I in['_', 'a'..'z', 'A'..'Z'] of
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True:
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begin
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if (I > #64) and (I < #91) then
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mHashTable[I] := Ord(I) - 64
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else if (I > #96) then
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mHashTable[I] := Ord(I) - 95;
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end;
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else
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mHashTable[I] := 0;
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end;
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end;
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end;
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procedure TSynHaskellSyn.InitIdent;
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var
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I: Integer;
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pF: PIdentFuncTableFunc;
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begin
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pF := PIdentFuncTableFunc(@fIdentFuncTable);
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for I := Low(fIdentFuncTable) to High(fIdentFuncTable) do
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begin
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pF^ := @AltFunc;
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Inc(pF);
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end;
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fIdentFuncTable[17] := @Func17;
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fIdentFuncTable[24] := @Func24;
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fIdentFuncTable[25] := @Func25;
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fIdentFuncTable[30] := @Func30;
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fIdentFuncTable[33] := @Func33;
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fIdentFuncTable[40] := @Func40;
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fIdentFuncTable[45] := @Func45;
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fIdentFuncTable[47] := @Func47;
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fIdentFuncTable[51] := @Func51;
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fIdentFuncTable[58] := @Func58;
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fIdentFuncTable[59] := @Func59;
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fIdentFuncTable[64] := @Func64;
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fIdentFuncTable[67] := @Func67;
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fIdentFuncTable[70] := @Func70;
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fIdentFuncTable[76] := @Func76;
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fIdentFuncTable[84] := @Func84;
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fIdentFuncTable[92] := @Func92;
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fIdentFuncTable[93] := @Func93;
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fIdentFuncTable[96] := @Func96;
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fIdentFuncTable[97] := @Func97;
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fIdentFuncTable[131] := @Func131;
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end;
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function TSynHaskellSyn.KeyHash(ToHash: PChar): Integer;
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begin
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Result := 0;
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while ToHash^ in ['_', '0'..'9', 'a'..'z', 'A'..'Z'] do
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begin
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inc(Result, mHashTable[ToHash^]);
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inc(ToHash);
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end;
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fStringLen := ToHash - fToIdent;
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end; { KeyHash }
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function TSynHaskellSyn.KeyComp(const aKey: String): Boolean;
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var
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I: Integer;
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Temp: PChar;
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begin
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Temp := fToIdent;
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if Length(aKey) = fStringLen then
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begin
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Result := True;
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for i := 1 to fStringLen do
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begin
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if Temp^ <> aKey[i] then
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begin
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Result := False;
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break;
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end;
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inc(Temp);
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end;
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end
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else
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Result := False;
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end; { KeyComp }
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function TSynHaskellSyn.Func17: TtkTokenKind;
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begin
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if KeyComp('if') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func24: TtkTokenKind;
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begin
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if KeyComp('IO') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func25: TtkTokenKind;
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begin
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if KeyComp('in') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func30: TtkTokenKind;
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begin
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if KeyComp('data') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func33: TtkTokenKind;
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begin
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if KeyComp('Char') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func40: TtkTokenKind;
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begin
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if KeyComp('let') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func45: TtkTokenKind;
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begin
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if KeyComp('Int') then Result := tkKey else
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if KeyComp('else') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func47: TtkTokenKind;
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begin
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if KeyComp('False') then Result := tkKey else
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if KeyComp('Bool') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func51: TtkTokenKind;
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begin
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if KeyComp('then') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func58: TtkTokenKind;
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begin
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if KeyComp('Float') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func59: TtkTokenKind;
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begin
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if KeyComp('class') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func64: TtkTokenKind;
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begin
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if KeyComp('where') then Result := tkKey else
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if KeyComp('Double') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func67: TtkTokenKind;
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begin
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if KeyComp('True') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func70: TtkTokenKind;
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begin
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if KeyComp('type') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func76: TtkTokenKind;
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begin
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if KeyComp('module') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func84: TtkTokenKind;
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begin
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if KeyComp('Integer') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func92: TtkTokenKind;
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begin
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if KeyComp('String') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func93: TtkTokenKind;
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begin
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if KeyComp('instance') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func96: TtkTokenKind;
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begin
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if KeyComp('deriving') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func97: TtkTokenKind;
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begin
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if KeyComp('import') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.Func131: TtkTokenKind;
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begin
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if KeyComp('otherwise') then Result := tkKey else Result := tkIdentifier;
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end;
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function TSynHaskellSyn.AltFunc: TtkTokenKind;
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begin
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Result := tkIdentifier;
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end;
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function TSynHaskellSyn.IdentKind(MayBe: PChar): TtkTokenKind;
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var
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HashKey: Integer;
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begin
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fToIdent := MayBe;
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HashKey := KeyHash(MayBe);
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if HashKey < 207 then Result := fIdentFuncTable[HashKey]() else Result := tkIdentifier;
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end;
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procedure TSynHaskellSyn.MakeMethodTables;
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var
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I: Char;
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begin
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for I := #0 to #255 do
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case I of
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'&': fProcTable[I] := @AndSymbolProc;
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#39: fProcTable[I] := @AsciiCharProc;
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'@': fProcTable[I] := @AtSymbolProc;
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'}': fProcTable[I] := @BraceCloseProc;
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'{': fProcTable[I] := @BraceOpenProc;
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#13: fProcTable[I] := @CRProc;
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':': fProcTable[I] := @ColonProc;
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',': fProcTable[I] := @CommaProc;
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'=': fProcTable[I] := @EqualProc;
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'>': fProcTable[I] := @GreaterProc;
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'?': fProcTable[I] := @QuestionProc;
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'A'..'Z', 'a'..'z', '_': fProcTable[I] := @IdentProc;
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#10: fProcTable[I] := @LFProc;
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'<': fProcTable[I] := @LowerProc;
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'-': fProcTable[I] := @MinusProc;
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'%': fProcTable[I] := @ModSymbolProc;
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'!': fProcTable[I] := @NotSymbolProc;
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#0: fProcTable[I] := @NullProc;
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'0'..'9': fProcTable[I] := @NumberProc;
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'|': fProcTable[I] := @OrSymbolProc;
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'+': fProcTable[I] := @PlusProc;
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'.': fProcTable[I] := @PointProc;
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')': fProcTable[I] := @RoundCloseProc;
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'(': fProcTable[I] := @RoundOpenProc;
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';': fProcTable[I] := @SemiColonProc;
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'/': fProcTable[I] := @SlashProc;
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#1..#9, #11, #12, #14..#32: fProcTable[I] := @SpaceProc;
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']': fProcTable[I] := @SquareCloseProc;
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'[': fProcTable[I] := @SquareOpenProc;
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|
'*': fProcTable[I] := @StarProc;
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|
#34: fProcTable[I] := @StringProc;
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|
'~': fProcTable[I] := @TildeProc;
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'^': fProcTable[I] := @XOrSymbolProc;
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else fProcTable[I] := @UnknownProc;
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end;
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end;
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|
|
constructor TSynHaskellSyn.Create(AOwner: TComponent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
fCommentAttri := TSynHighlighterAttributes.Create(SYNS_AttrComment);
|
|
fCommentAttri.Style:= [fsItalic];
|
|
AddAttribute(fCommentAttri);
|
|
fIdentifierAttri := TSynHighlighterAttributes.Create(SYNS_AttrIdentifier);
|
|
AddAttribute(fIdentifierAttri);
|
|
fKeyAttri := TSynHighlighterAttributes.Create(SYNS_AttrReservedWord);
|
|
fKeyAttri.Style:= [fsBold];
|
|
AddAttribute(fKeyAttri);
|
|
fNumberAttri := TSynHighlighterAttributes.Create(SYNS_AttrNumber);
|
|
AddAttribute(fNumberAttri);
|
|
fSpaceAttri := TSynHighlighterAttributes.Create(SYNS_AttrSpace);
|
|
fSpaceAttri.Foreground := clWindow;
|
|
AddAttribute(fSpaceAttri);
|
|
fStringAttri := TSynHighlighterAttributes.Create(SYNS_AttrString);
|
|
AddAttribute(fStringAttri);
|
|
fSymbolAttri := TSynHighlighterAttributes.Create(SYNS_AttrSymbol);
|
|
AddAttribute(fSymbolAttri);
|
|
SetAttributesOnChange(@DefHighlightChange);
|
|
InitIdent;
|
|
MakeMethodTables;
|
|
fRange := rsUnknown;
|
|
fAsmStart := False;
|
|
fDefaultFilter := SYNS_FilterHaskell;
|
|
end; { Create }
|
|
|
|
procedure TSynHaskellSyn.SetLine(const NewValue: String; LineNumber:Integer);
|
|
begin
|
|
fLine := PChar(NewValue);
|
|
Run := 0;
|
|
fLineNumber := LineNumber;
|
|
Next;
|
|
end; { SetLine }
|
|
|
|
procedure TSynHaskellSyn.AnsiCProc;
|
|
begin
|
|
fTokenID := tkComment;
|
|
case FLine[Run] of
|
|
#0:
|
|
begin
|
|
NullProc;
|
|
exit;
|
|
end;
|
|
#10:
|
|
begin
|
|
LFProc;
|
|
exit;
|
|
end;
|
|
#13:
|
|
begin
|
|
CRProc;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
while FLine[Run] <> #0 do
|
|
case FLine[Run] of
|
|
'*':
|
|
if fLine[Run + 1] = '/' then
|
|
begin
|
|
inc(Run, 2);
|
|
if fRange = rsAnsiCAsm then
|
|
fRange := rsAsm
|
|
else if fRange = rsAnsiCAsmBlock then
|
|
fRange := rsAsmBlock
|
|
else if fRange = rsDirectiveComment then
|
|
fRange := rsDirective
|
|
else
|
|
fRange := rsUnKnown;
|
|
break;
|
|
end else
|
|
inc(Run);
|
|
#10: break;
|
|
#13: break;
|
|
else inc(Run);
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.AndSymbolProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
case FLine[Run + 1] of
|
|
'=': {and assign}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkAndAssign;
|
|
end;
|
|
'&': {logical and}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkLogAnd;
|
|
end;
|
|
else {and}
|
|
begin
|
|
inc(Run);
|
|
FExtTokenID := xtkAnd;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.AsciiCharProc;
|
|
begin
|
|
fTokenID := tkString;
|
|
repeat
|
|
if fLine[Run] = '\' then begin
|
|
if fLine[Run + 1] in [#39, '\'] then
|
|
inc(Run);
|
|
end;
|
|
inc(Run);
|
|
until fLine[Run] in [#0, #10, #13, #39];
|
|
if fLine[Run] = #39 then
|
|
inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.AtSymbolProc;
|
|
begin
|
|
fTokenID := tkUnknown;
|
|
inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.BraceCloseProc;
|
|
begin
|
|
inc(Run);
|
|
fTokenId := tkSymbol;
|
|
FExtTokenID := xtkBraceClose;
|
|
if fRange = rsAsmBlock then fRange := rsUnknown;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.BraceOpenProc;
|
|
begin
|
|
inc(Run);
|
|
fTokenId := tkSymbol;
|
|
FExtTokenID := xtkBraceOpen;
|
|
if fRange = rsAsm then
|
|
begin
|
|
fRange := rsAsmBlock;
|
|
fAsmStart := True;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.CRProc;
|
|
begin
|
|
fTokenID := tkSpace;
|
|
Inc(Run);
|
|
if fLine[Run + 1] = #10 then Inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.ColonProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
Case FLine[Run + 1] of
|
|
':': {scope resolution operator}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkScopeResolution;
|
|
end;
|
|
else {colon}
|
|
begin
|
|
inc(Run);
|
|
FExtTokenID := xtkColon;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.CommaProc;
|
|
begin
|
|
inc(Run);
|
|
fTokenID := tkSymbol;
|
|
FExtTokenID := xtkComma;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.EqualProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
case FLine[Run + 1] of
|
|
'=': {logical equal}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkLogEqual;
|
|
end;
|
|
else {assign}
|
|
begin
|
|
inc(Run);
|
|
FExtTokenID := xtkAssign;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.GreaterProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
Case FLine[Run + 1] of
|
|
'=': {greater than or equal to}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkGreaterThanEqual;
|
|
end;
|
|
'>':
|
|
begin
|
|
if FLine[Run + 2] = '=' then {shift right assign}
|
|
begin
|
|
inc(Run, 3);
|
|
FExtTokenID := xtkShiftRightAssign;
|
|
end
|
|
else {shift right}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkShiftRight;
|
|
end;
|
|
end;
|
|
else {greater than}
|
|
begin
|
|
inc(Run);
|
|
FExtTokenID := xtkGreaterThan;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.QuestionProc;
|
|
begin
|
|
fTokenID := tkSymbol; {conditional}
|
|
FExtTokenID := xtkQuestion;
|
|
inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.IdentProc;
|
|
begin
|
|
fTokenID := IdentKind((fLine + Run));
|
|
inc(Run, fStringLen);
|
|
while Identifiers[fLine[Run]] do inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.LFProc;
|
|
begin
|
|
fTokenID := tkSpace;
|
|
inc(Run);
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.LowerProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
case FLine[Run + 1] of
|
|
'=': {less than or equal to}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkLessThanEqual;
|
|
end;
|
|
'<':
|
|
begin
|
|
if FLine[Run + 2] = '=' then {shift left assign}
|
|
begin
|
|
inc(Run, 3);
|
|
FExtTokenID := xtkShiftLeftAssign;
|
|
end
|
|
else {shift left}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkShiftLeft;
|
|
end;
|
|
end;
|
|
else {less than}
|
|
begin
|
|
inc(Run);
|
|
FExtTokenID := xtkLessThan;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TSynHaskellSyn.MinusProc;
|
|
begin
|
|
fTokenID := tkSymbol;
|
|
case FLine[Run + 1] of
|
|
'=': {subtract assign}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkSubtractAssign;
|
|
end;
|
|
'-': {decrement}
|
|
begin
|
|
fTokenID := tkComment;
|
|
inc(Run, 2);
|
|
while not (fLine[Run] in [#0, #10, #13]) do Inc(Run);
|
|
end;
|
|
'>': {arrow}
|
|
begin
|
|
inc(Run, 2);
|
|
FExtTokenID := xtkArrow;
|
|
end;
|
|
else {subtract}
|
|
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
|
|
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(PtrInt(fRange));
|
|
end;
|
|
|
|
function TSynHaskellSyn.GetToken: String;
|
|
var
|
|
Len: LongInt;
|
|
begin
|
|
Len := Run - fTokenPos;
|
|
SetString(Result, (FLine + fTokenPos), Len);
|
|
end;
|
|
|
|
{$IFDEF SYN_LAZARUS}
|
|
procedure TSynHaskellSyn.GetTokenEx(out TokenStart :PChar; out TokenLength :integer);
|
|
begin
|
|
TokenLength := Run - fTokenPos;
|
|
TokenStart := FLine + fTokenPos;
|
|
end;
|
|
{$ENDIF}
|
|
|
|
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(PtrUInt(Value));
|
|
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;
|
|
RegisterPlaceableHighlighter(TSynHaskellSyn);
|
|
|
|
end.
|