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HeidiSQL/components/synedit/Source/SynHighlighterDWS.pas

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ObjectPascal

{------------------------------------------------------------------------------
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: SynHighlighterDWS.pas,v 1.11 2011/12/28 09:24:20 Egg 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 DWScript syntax highlighter for SynEdit)
}
unit SynHighlighterDWS;
{$I SynEdit.inc}
interface
uses
Windows,
Graphics,
SynEditTypes,
SynEditHighlighter,
SysUtils,
Classes,
{$IFDEF SYN_CodeFolding}
SynEditCodeFolding,
SynRegExpr,
{$ENDIF}
Character;
type
TtkTokenKind = (tkAsm, tkComment, tkIdentifier, tkKey, tkNull, tkNumber,
tkSpace, tkString, tkSymbol, tkUnknown, tkFloat, tkHex, tkDirec, tkChar);
TRangeState = (rsANil, rsCommentAnsi, rsCommentC, rsAsm, rsAsmCommentC,
rsCommentBor, rsProperty, rsExports, rsDirective, rsAsmDirective,
rsStringSingle, rsStringDouble, rsType, rsUnit, rsUnknown);
PIdentFuncTableFunc = ^TIdentFuncTableFunc;
TIdentFuncTableFunc = function : TtkTokenKind of object;
type
TAnsiStringList = class(TStringList)
function CompareStrings(const S1, S2: string): Integer; override;
end;
type
{$IFDEF SYN_CodeFolding}
TSynDWSSyn = class(TSynCustomCodeFoldingHighlighter)
{$ELSE}
TSynDWSSyn = class(TSynCustomHighlighter)
{$ENDIF}
private
FAsmStart: Boolean;
FRange: TRangeState;
FCommentClose: Char;
FIdentFuncTable: array[0..388] of TIdentFuncTableFunc;
FKeywords: TAnsiStringList;
FKeywordsUnitScoped: TAnsiStringList;
FKeywordsPropertyScoped: TAnsiStringList;
FKeywordsTypeScoped: TAnsiStringList;
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;
{$IFDEF SYN_CodeFolding}
RE_BlockBegin : TRegExpr;
RE_BlockEnd : TRegExpr;
RE_Code: TRegExpr;
{$ENDIF}
function AltFunc: TtkTokenKind;
function KeywordFunc: TtkTokenKind;
function FuncAsm: TtkTokenKind;
function FuncEnd: TtkTokenKind;
function FuncUnitScoped: TtkTokenKind;
function FuncUnit: TtkTokenKind;
function FuncPropertyScoped: TtkTokenKind;
function FuncProperty: TtkTokenKind;
function FuncTypeScoped: TtkTokenKind;
function FuncType: TtkTokenKind;
function HashKey(Str: PWideChar): Cardinal;
function IdentKind(MayBe: PWideChar): TtkTokenKind;
procedure InitIdent;
procedure AddressOpProc;
procedure AsciiCharProc;
procedure CommentBorProc;
procedure BraceOpenProc;
procedure ColonOrGreaterProc;
procedure CommentAnsiProc;
procedure CRProc;
procedure IdentProc;
procedure IntegerProc;
procedure LFProc;
procedure LowerProc;
procedure NullProc;
procedure NumberProc;
procedure PointProc;
procedure RoundOpenProc;
procedure SemicolonProc;
procedure SlashProc;
procedure SpaceProc;
procedure StringAposProc;
procedure StringAposMultiProc;
procedure StringQuoteProc;
procedure SymbolProc;
procedure UnknownProc;
protected
function GetSampleSource: UnicodeString; override;
function IsFilterStored: Boolean; override;
function IsCurrentToken(const Token: UnicodeString): Boolean; override;
public
class function GetCapabilities: TSynHighlighterCapabilities; override;
class function GetLanguageName: string; override;
class function GetFriendlyLanguageName: UnicodeString; override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
function GetDefaultAttribute(Index: Integer): TSynHighlighterAttributes; override;
function GetEol: Boolean; override;
function GetRange: Pointer; override;
function GetTokenAttribute: TSynHighlighterAttributes; override;
function GetTokenID: TtkTokenKind;
function GetTokenKind: Integer; override;
procedure Next; override;
procedure ResetRange; override;
procedure SetRange(Value: Pointer); override;
function IsIdentChar(AChar: WideChar): Boolean; override;
procedure LoadDelphiStyle; virtual;
// ^^^
// This routine can be called to install a Delphi style of colors
// and highlighting. It modifies the basic TSynDWSSyn to reproduce
// the most recent Delphi editor highlighting.
{$IFDEF SYN_CodeFolding}
procedure ScanForFoldRanges(FoldRanges: TSynFoldRanges;
LinesToScan: TStrings; FromLine: Integer; ToLine: Integer); override;
procedure AdjustFoldRanges(FoldRanges: TSynFoldRanges;
LinesToScan: TStrings); override;
{$ENDIF}
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;
end;
implementation
uses
SynEditStrConst;
const
// if the language is case-insensitive keywords *must* be in lowercase
cKeywords: array[1..94] of UnicodeString = (
'abstract', 'and', 'array', 'as', 'asm',
'begin', 'break', 'case', 'cdecl', 'class', 'const', 'constructor',
'continue', 'deprecated', 'destructor',
'div', 'do', 'downto', 'else', 'end', 'ensure', 'empty', 'except',
'exit', 'export', 'exports', 'external', 'final', 'finalization',
'finally', 'for', 'forward', 'function', 'helper', 'if',
'implementation', 'implements', 'implies', 'in', 'inherited',
'initialization', 'inline', 'interface', 'is', 'lambda', 'lazy', 'library',
'method', 'mod', 'new', 'nil', 'not', 'object', 'of', 'old', 'on',
'operator', 'or', 'overload', 'override', 'pascal', 'partial', 'private',
'procedure', 'program', 'property', 'protected', 'public', 'published',
'raise', 'record', 'register', 'reintroduce', 'repeat', 'require',
'resourcestring', 'sar', 'sealed', 'set', 'shl', 'shr', 'static',
'strict', 'then', 'to', 'try', 'type', 'unit', 'until', 'uses', 'var',
'virtual', 'while', 'xor'
);
cKeywordsUnitScoped: array [0..0] of UnicodeString = (
'namespace'
);
cKeywordsPropertyScoped: array [0..4] of UnicodeString = (
'default', 'index', 'read', 'stored', 'write'
);
cKeywordsTypeScoped: array [0..1] of UnicodeString = (
'enum', 'flag'
);
function TAnsiStringList.CompareStrings(const S1, S2: string): Integer;
begin
Result := CompareText(S1, S2);
end;
{ TSynDWSSyn }
constructor TSynDWSSyn.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FCaseSensitive := True; // bypass automatic lowercase, we handle it here
FCommentClose := ')';
FAsmAttri := TSynHighlighterAttributes.Create(SYNS_AttrAssembler, SYNS_FriendlyAttrAssembler);
FAsmAttri.Foreground := RGB(128, 0, 0);
AddAttribute(FAsmAttri);
FCommentAttri := TSynHighlighterAttributes.Create(SYNS_AttrComment, SYNS_FriendlyAttrComment);
FCommentAttri.Foreground := clGreen;
FCommentAttri.Style := [fsItalic];
AddAttribute(FCommentAttri);
FDirecAttri := TSynHighlighterAttributes.Create(SYNS_AttrPreprocessor, SYNS_FriendlyAttrPreprocessor);
FDirecAttri.Foreground := TColor($808000);
FDirecAttri.Style := [fsItalic];
AddAttribute(FDirecAttri);
FIdentifierAttri := TSynHighlighterAttributes.Create(SYNS_AttrIdentifier, SYNS_FriendlyAttrIdentifier);
AddAttribute(FIdentifierAttri);
FKeyAttri := TSynHighlighterAttributes.Create(SYNS_AttrReservedWord, SYNS_FriendlyAttrReservedWord);
FKeyAttri.Style := [fsBold];
AddAttribute(FKeyAttri);
FNumberAttri := TSynHighlighterAttributes.Create(SYNS_AttrNumber, SYNS_FriendlyAttrNumber);
FNumberAttri.Foreground := clBlue;
AddAttribute(FNumberAttri);
FFloatAttri := TSynHighlighterAttributes.Create(SYNS_AttrFloat, SYNS_FriendlyAttrFloat);
FFloatAttri.Foreground := clBlue;
AddAttribute(FFloatAttri);
FHexAttri := TSynHighlighterAttributes.Create(SYNS_AttrHexadecimal, SYNS_FriendlyAttrHexadecimal);
FHexAttri.Foreground := clBlue;
AddAttribute(FHexAttri);
FSpaceAttri := TSynHighlighterAttributes.Create(SYNS_AttrSpace, SYNS_FriendlyAttrSpace);
AddAttribute(FSpaceAttri);
FStringAttri := TSynHighlighterAttributes.Create(SYNS_AttrString, SYNS_FriendlyAttrString);
FStringAttri.Foreground := clBlue;
AddAttribute(FStringAttri);
FCharAttri := TSynHighlighterAttributes.Create(SYNS_AttrCharacter, SYNS_FriendlyAttrCharacter);
FCharAttri.Foreground := clBlue;
AddAttribute(FCharAttri);
FSymbolAttri := TSynHighlighterAttributes.Create(SYNS_AttrSymbol, SYNS_FriendlyAttrSymbol);
FSymbolAttri.Foreground := clNavy;
AddAttribute(FSymbolAttri);
SetAttributesOnChange(DefHighlightChange);
FKeywords := TAnsiStringList.Create;
FKeywordsUnitScoped := TAnsiStringList.Create;
FKeywordsPropertyScoped := TAnsiStringList.Create;
FKeywordsTypeScoped := TAnsiStringList.Create;
InitIdent;
FRange := rsUnknown;
FAsmStart := False;
FDefaultFilter := SYNS_FilterDWS;
{$IFDEF SYN_CodeFolding}
RE_BlockBegin := TRegExpr.Create;
RE_BlockBegin.Expression := '\b(begin|record|class)\b';
RE_BlockBegin.ModifierI := True;
RE_BlockEnd := TRegExpr.Create;
RE_BlockEnd.Expression := '\bend\b';
RE_BlockEnd.ModifierI := True;
RE_Code := TRegExpr.Create;
RE_Code.Expression := '^\s*(function|procedure)\b';
RE_Code.ModifierI := True;
{$ENDIF}
end;
// Destroy
//
destructor TSynDWSSyn.Destroy;
begin
inherited;
FKeywords.Free;
FKeywordsUnitScoped.Free;
FKeywordsPropertyScoped.Free;
FKeywordsTypeScoped.Free;
{$IFDEF SYN_CodeFolding}
RE_BlockBegin.Free;
RE_BlockEnd.Free;
RE_Code.Free;
{$ENDIF}
end;
function TSynDWSSyn.HashKey(Str: PWideChar): Cardinal;
var
c: Word;
begin
Result := 0;
while IsIdentChar(Str^) do
begin
c := Ord(Str^);
if c in [Ord('A')..Ord('Z')] then
c := c + (Ord('a') - Ord('A'));
Result := Result * 692 + c * 171;
Inc(Str);
end;
FStringLen := Str - FToIdent;
Result := Result mod Cardinal(Length(FIdentFuncTable));
end;
function TSynDWSSyn.IdentKind(MayBe: PWideChar): TtkTokenKind;
var
Key: Cardinal;
begin
FToIdent := MayBe;
Key := HashKey(MayBe);
if Key <= High(FIdentFuncTable) then
Result := FIdentFuncTable[Key]
else
Result := tkIdentifier;
end;
procedure TSynDWSSyn.InitIdent;
procedure SetIdentFunc(h : Integer; const func : TIdentFuncTableFunc);
begin
FIdentFuncTable[h] := func;
end;
var
i : Integer;
begin
for i := Low(cKeywords) to High(cKeywords) do
begin
SetIdentFunc(HashKey(@cKeywords[i][1]), KeywordFunc);
FKeywords.Add(cKeywords[i]);
end;
for i := 0 to High(cKeywordsUnitScoped) do
begin
SetIdentFunc(HashKey(@cKeywordsUnitScoped[i][1]), FuncUnitScoped);
FKeywordsUnitScoped.Add(cKeywordsUnitScoped[i]);
end;
for i := 0 to High(cKeywordsPropertyScoped) do
begin
SetIdentFunc(HashKey(@cKeywordsPropertyScoped[i][1]), FuncPropertyScoped);
FKeywordsPropertyScoped.Add(cKeywordsPropertyScoped[i]);
end;
for i := 0 to High(cKeywordsTypeScoped) do
begin
SetIdentFunc(HashKey(@cKeywordsTypeScoped[i][1]), FuncTypeScoped);
FKeywordsTypeScoped.Add(cKeywordsTypeScoped[i]);
end;
for i := Low(FIdentFuncTable) to High(FIdentFuncTable) do
if @FIdentFuncTable[i] = nil then
FIdentFuncTable[i] := AltFunc;
SetIdentFunc(HashKey('asm'), FuncAsm);
SetIdentFunc(HashKey('end'), FuncEnd);
SetIdentFunc(HashKey('property'), FuncProperty);
SetIdentFunc(HashKey('unit'), FuncUnit);
SetIdentFunc(HashKey('type'), FuncType);
FKeywords.Sorted := True;
end;
function TSynDWSSyn.AltFunc: TtkTokenKind;
begin
Result := tkIdentifier
end;
function TSynDWSSyn.KeywordFunc: TtkTokenKind;
var
buf : String;
begin
SetString(buf, FToIdent, FStringLen);
if (FKeywords.IndexOf(buf) >= 0) and (FLine[Run - 1] <> '&') then
Result := tkKey
else Result := tkIdentifier
end;
function TSynDWSSyn.FuncAsm: TtkTokenKind;
begin
if IsCurrentToken('asm') then begin
Result := tkKey;
FRange := rsAsm;
FAsmStart := True;
end else Result := KeywordFunc;
end;
function TSynDWSSyn.FuncEnd: TtkTokenKind;
begin
if IsCurrentToken('end') then begin
if (FLine[Run - 1] <> '&') then
begin
Result := tkKey;
FRange := rsUnknown;
end
else
Result := tkIdentifier;
end else Result := KeywordFunc;
end;
function TSynDWSSyn.FuncTypeScoped: TtkTokenKind;
var
buf: String;
begin
SetString(buf, FToIdent, FStringLen);
if (FRange = rsType) and (FKeywordsTypeScoped.IndexOf(buf) >= 0) then
Result := tkKey
else
Result := KeywordFunc;
end;
function TSynDWSSyn.FuncType: TtkTokenKind;
begin
if IsCurrentToken('type') then
begin
if (FLine[Run - 1] <> '&') then
begin
Result := tkKey;
FRange := rsType;
end
else
Result := tkIdentifier;
end else Result := KeywordFunc;
end;
function TSynDWSSyn.FuncPropertyScoped: TtkTokenKind;
var
buf: String;
begin
SetString(buf, FToIdent, FStringLen);
if (FRange = rsProperty) and (FKeywordsPropertyScoped.IndexOf(buf) >= 0) then
Result := tkKey
else
Result := KeywordFunc;
end;
function TSynDWSSyn.FuncUnitScoped: TtkTokenKind;
var
buf: String;
begin
SetString(buf, FToIdent, FStringLen);
if (FRange = rsUnit) and (FKeywordsUnitScoped.IndexOf(buf) >= 0) then
Result := tkKey
else
Result := KeywordFunc;
end;
function TSynDWSSyn.FuncProperty: TtkTokenKind;
begin
if IsCurrentToken('property') then
begin
Result := tkKey;
FRange := rsProperty;
end
else
Result := KeywordFunc;
end;
function TSynDWSSyn.FuncUnit: TtkTokenKind;
begin
if IsCurrentToken('unit') then
begin
Result := tkKey;
FRange := rsUnit;
end
else
Result := KeywordFunc;
end;
procedure TSynDWSSyn.AddressOpProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if FLine[Run] = '@' then Inc(Run);
end;
procedure TSynDWSSyn.AsciiCharProc;
function IsAsciiChar: Boolean;
begin
case FLine[Run] of
'0'..'9', '$', 'A'..'F', 'a'..'f':
Result := True;
else
Result := False;
end;
end;
begin
FTokenID := tkChar;
Inc(Run);
if FLine[run]='''' then
StringAposMultiProc
else begin
while IsAsciiChar do
Inc(Run);
end;
end;
procedure TSynDWSSyn.CommentBorProc;
begin
case FLine[Run] of
#0: NullProc;
#10: LFProc;
#13: CRProc;
else
begin
if FRange in [rsDirective, rsAsmDirective] then
FTokenID := tkDirec
else
FTokenID := tkComment;
repeat
if FLine[Run] = '}' then
begin
Inc(Run);
if FRange in [rsAsmDirective] then
FRange := rsAsm
else
FRange := rsUnknown;
Break;
end;
Inc(Run);
until IsLineEnd(Run);
end;
end;
end;
procedure TSynDWSSyn.BraceOpenProc;
begin
if (FLine[Run + 1] = '$') then
begin
if FRange = rsAsm then
FRange := rsAsmDirective
else
FRange := rsDirective;
end
else
begin
if FRange = rsAsm then
begin
FTokenID := tkSymbol;
Inc(Run);
Exit;
end
else
FRange := rsCommentBor;
end;
CommentBorProc;
end;
procedure TSynDWSSyn.ColonOrGreaterProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if FLine[Run] = '=' then Inc(Run);
end;
procedure TSynDWSSyn.CRProc;
begin
FTokenID := tkSpace;
Inc(Run);
if FLine[Run] = #10 then
Inc(Run);
end;
procedure TSynDWSSyn.IdentProc;
begin
FTokenID := IdentKind(FLine + Run);
Inc(Run, FStringLen);
while IsIdentChar(FLine[Run]) do
Inc(Run);
end;
procedure TSynDWSSyn.IntegerProc;
function IsIntegerChar: Boolean;
begin
case FLine[Run] of
'0'..'9', 'A'..'F', 'a'..'f':
Result := True;
else
Result := False;
end;
end;
begin
Inc(Run);
FTokenID := tkHex;
while IsIntegerChar do
Inc(Run);
end;
procedure TSynDWSSyn.LFProc;
begin
FTokenID := tkSpace;
Inc(Run);
end;
procedure TSynDWSSyn.LoadDelphiStyle;
procedure AddKeyword(const AName : string);
var
I : Integer;
begin
I := HashKey( @AName[1] );
FIdentFuncTable[I] := KeywordFunc;
FKeywords.Add(AName);
end;
procedure RemoveKeyword(const AName : string);
var
I : Integer;
begin
I := FKeywords.IndexOf(AName);
if I <> -1 then
FKeywords.Delete(I);
end;
const
clID = clNavy;
clString = clBlue;
clComment = clGreen;
cKeywordsToAdd: array[0..0] of UnicodeString = (
'string');
cKeywordsToRemove: array[0..1] of UnicodeString = (
'break', 'exit');
var
i : Integer;
begin
// This routine can be called to install a Delphi style of colors
// and highlighting. It modifies the basic TSynDWSSyn to reproduce
// the most recent Delphi editor highlighting.
// Delphi colors...
KeyAttri.Foreground := clID;
StringAttri.Foreground := clString;
CommentAttri.Foreground := clComment;
// These are keywords highlighted in Delphi but not in TSynDWSSyn ..
for i := Low(cKeywordsToAdd) to High(cKeywordsToAdd) do
AddKeyword(cKeywordsToAdd[i]);
// These are keywords highlighted in TSynDWSSyn but not in Delphi...
for i := Low(cKeywordsToRemove) to High(cKeywordsToRemove) do
RemoveKeyword(cKeywordsToRemove[i]);
end;
procedure TSynDWSSyn.LowerProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if (FLine[Run] = '=') or (FLine[Run] = '>') then
Inc(Run);
end;
procedure TSynDWSSyn.NullProc;
begin
FTokenID := tkNull;
Inc(Run);
end;
procedure TSynDWSSyn.NumberProc;
function IsNumberChar: Boolean;
begin
case FLine[Run] of
'0'..'9', '.', 'e', 'E', '-', '+':
Result := True;
else
Result := False;
end;
end;
begin
Inc(Run);
FTokenID := tkNumber;
while IsNumberChar do
begin
case FLine[Run] of
'.':
if FLine[Run + 1] = '.' then
Break
else
FTokenID := tkFloat;
'e', 'E': FTokenID := tkFloat;
'-', '+':
begin
if FTokenID <> tkFloat then // arithmetic
Break;
if (FLine[Run - 1] <> 'e') and (FLine[Run - 1] <> 'E') then
Break; //float, but it ends here
end;
end;
Inc(Run);
end;
end;
procedure TSynDWSSyn.PointProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if (FLine[Run] = '.') or (FLine[Run - 1] = ')') then
Inc(Run);
end;
procedure TSynDWSSyn.CommentAnsiProc;
begin
case FLine[Run] of
#0: NullProc;
#10: LFProc;
#13: CRProc;
else
FTokenID := tkComment;
repeat
if (FLine[Run] = '*') and (FLine[Run + 1] = FCommentClose) then begin
Inc(Run, 2);
if FRange in [rsAsmCommentC] then
FRange := rsAsm
else
FRange := rsUnknown;
Break;
end;
Inc(Run);
until IsLineEnd(Run);
end;
end;
procedure TSynDWSSyn.RoundOpenProc;
begin
Inc(Run);
case FLine[Run] of
'*':
begin
Inc(Run);
if FRange = rsAsm then
begin
Inc(Run);
FTokenID := tkSymbol;
Exit;
end
else
FRange := rsCommentAnsi;
FTokenID := tkComment;
FCommentClose := ')';
if not IsLineEnd(Run) then
CommentAnsiProc;
end;
'.':
begin
Inc(Run);
FTokenID := tkSymbol;
end;
else
FTokenID := tkSymbol;
end;
end;
procedure TSynDWSSyn.SemicolonProc;
begin
Inc(Run);
FTokenID := tkSymbol;
if FRange in [rsUnit, rsProperty, rsExports] then
FRange := rsUnknown;
end;
procedure TSynDWSSyn.SlashProc;
begin
Inc(Run);
case FLine[Run] of
'/': begin
FTokenID := tkComment;
repeat
Inc(Run);
until IsLineEnd(Run);
end;
'*':
begin
Inc(Run);
if FRange = rsAsm then
FRange := rsAsmCommentC
else
FRange := rsCommentC;
FTokenID := tkComment;
FCommentClose := '/';
if not IsLineEnd(Run) then
CommentAnsiProc;
end;
else
FTokenID := tkSymbol;
end;
end;
procedure TSynDWSSyn.SpaceProc;
begin
Inc(Run);
FTokenID := tkSpace;
while (FLine[Run] <= #32) and not IsLineEnd(Run) do Inc(Run);
end;
procedure TSynDWSSyn.StringAposProc;
begin
FTokenID := tkString;
Inc(Run);
while not IsLineEnd(Run) do
begin
if FLine[Run] = #39 then begin
Inc(Run);
if FLine[Run] <> #39 then
Break;
end;
Inc(Run);
end;
end;
procedure TSynDWSSyn.StringAposMultiProc;
begin
FTokenID := tkString;
if (Run>0) or IsLineEnd(Run+1) then
Inc(Run);
FRange := rsStringSingle;
while not IsLineEnd(Run) do
begin
if FLine[Run] = '''' then begin
Inc(Run);
if FLine[Run] <> '''' then begin
FRange := rsUnknown;
Break;
end;
end;
Inc(Run);
end;
end;
procedure TSynDWSSyn.StringQuoteProc;
begin
FTokenID := tkString;
if FRange <> rsStringDouble then
begin
FRange := rsStringDouble;
Inc(Run);
end else
begin
if IsLineEnd(Run) then
begin
Inc(Run);
Exit;
end;
end;
while not IsLineEnd(Run) do
begin
if FLine[Run] = '"' then
begin
Inc(Run);
if FLine[Run] <> '"' then
begin
FRange := rsUnknown;
Break;
end;
end;
Inc(Run);
end;
end;
procedure TSynDWSSyn.SymbolProc;
begin
Inc(Run);
FTokenID := tkSymbol;
end;
procedure TSynDWSSyn.UnknownProc;
begin
Inc(Run);
FTokenID := tkUnknown;
end;
procedure TSynDWSSyn.Next;
begin
FAsmStart := False;
FTokenPos := Run;
case FRange of
rsCommentAnsi, rsCommentC, rsAsmCommentC:
CommentAnsiProc;
rsCommentBor, rsDirective, rsAsmDirective:
CommentBorProc;
rsStringSingle:
StringAposMultiProc;
rsStringDouble:
StringQuoteProc;
else
case FLine[Run] of
#0: NullProc;
#10: LFProc;
#13: CRProc;
#1..#9, #11, #12, #14..#32: SpaceProc;
'#': AsciiCharProc;
'$': IntegerProc;
#39: StringAposProc;
'"': StringQuoteProc;
'0'..'9': NumberProc;
'A'..'Z', 'a'..'z', '_': IdentProc;
'{': BraceOpenProc;
'}', '!', '%', '&', '('..'/', ':'..'@', '['..'^', '`', '~': begin
case FLine[Run] of
'(': RoundOpenProc;
'.': PointProc;
';': SemicolonProc;
'/': SlashProc;
':', '>': ColonOrGreaterProc;
'<': LowerProc;
'@': AddressOpProc;
else
SymbolProc;
end;
end;
#$0080..#$FFFF :
if {$IFDEF SYN_COMPILER_18_UP}Char(FLine[Run]).IsLetterOrDigit{$ELSE}TCharacter.IsLetterOrDigit(FLine[Run]){$ENDIF} then
IdentProc
else UnknownProc;
else
UnknownProc;
end;
end;
inherited;
end;
function TSynDWSSyn.GetDefaultAttribute(Index: Integer):
TSynHighlighterAttributes;
begin
case Index of
SYN_ATTR_COMMENT: Result := FCommentAttri;
SYN_ATTR_IDENTIFIER: Result := FIdentifierAttri;
SYN_ATTR_KEYWORD: Result := FKeyAttri;
SYN_ATTR_STRING: Result := FStringAttri;
SYN_ATTR_WHITESPACE: Result := FSpaceAttri;
SYN_ATTR_SYMBOL: Result := FSymbolAttri;
else
Result := nil;
end;
end;
function TSynDWSSyn.GetEol: Boolean;
begin
Result := Run = FLineLen + 1;
end;
function TSynDWSSyn.GetTokenID: TtkTokenKind;
begin
if not FAsmStart and (FRange = rsAsm)
and not (FTokenID in [tkNull, tkComment, tkDirec, tkSpace])
then
Result := tkAsm
else
Result := FTokenID;
end;
function TSynDWSSyn.GetTokenAttribute: TSynHighlighterAttributes;
begin
case GetTokenID of
tkAsm: Result := FAsmAttri;
tkComment: Result := FCommentAttri;
tkDirec: Result := FDirecAttri;
tkIdentifier: Result := FIdentifierAttri;
tkKey: Result := FKeyAttri;
tkNumber: Result := FNumberAttri;
tkFloat: Result := FFloatAttri;
tkHex: Result := FHexAttri;
tkSpace: Result := FSpaceAttri;
tkString: Result := FStringAttri;
tkChar: Result := FCharAttri;
tkSymbol: Result := FSymbolAttri;
tkUnknown: Result := FSymbolAttri;
else
Result := nil;
end;
end;
function TSynDWSSyn.GetTokenKind: Integer;
begin
Result := Ord(GetTokenID);
end;
function TSynDWSSyn.GetRange: Pointer;
begin
Result := Pointer(FRange);
end;
{$IFDEF SYN_CodeFolding}
type
TRangeStates = set of TRangeState;
Const
FT_Standard = 1; // begin end, class end, record end
FT_Comment = 11;
FT_Asm = 12;
FT_StringDouble = 13;
FT_StringSingle = 14;
FT_ConditionalDirective = 15;
FT_CodeDeclaration = 16;
FT_CodeDeclarationWithBody = 17;
FT_Implementation = 18;
procedure TSynDWSSyn.ScanForFoldRanges(FoldRanges: TSynFoldRanges;
LinesToScan: TStrings; FromLine, ToLine: Integer);
var
CurLine: String;
Line: Integer;
function BlockDelimiter(Line: Integer): Boolean;
var
Index: Integer;
begin
Result := False;
if RE_BlockBegin.Exec(CurLine) then
begin
// Char must have proper highlighting (ignore stuff inside comments...)
Index := RE_BlockBegin.MatchPos[0];
if GetHighlighterAttriAtRowCol(LinesToScan, Line, Index) <> fCommentAttri then
begin
// And ignore lines with both opening and closing chars in them
Re_BlockEnd.InputString := CurLine;
if not RE_BlockEnd.Exec(Index + 1) then begin
FoldRanges.StartFoldRange(Line + 1, FT_Standard);
Result := True;
end;
end;
end else if RE_BlockEnd.Exec(CurLine) then
begin
Index := RE_BlockEnd.MatchPos[0];
if GetHighlighterAttriAtRowCol(LinesToScan, Line, Index) <> fCommentAttri then
begin
FoldRanges.StopFoldRange(Line + 1, FT_Standard);
Result := True;
end;
end;
end;
function FoldRegion(Line: Integer): Boolean;
var
S: string;
begin
Result := False;
S := TrimLeft(CurLine);
if Uppercase(Copy(S, 1, 8)) = '{$REGION' then
begin
FoldRanges.StartFoldRange(Line + 1, FoldRegionType);
Result := True;
end
else if Uppercase(Copy(S, 1, 11)) = '{$ENDREGION' then
begin
FoldRanges.StopFoldRange(Line + 1, FoldRegionType);
Result := True;
end;
end;
function ConditionalDirective(Line: Integer): Boolean;
var
S: string;
begin
Result := False;
S := TrimLeft(CurLine);
if Uppercase(Copy(S, 1, 7)) = '{$IFDEF' then
begin
FoldRanges.StartFoldRange(Line + 1, FT_ConditionalDirective);
Result := True;
end
else if Uppercase(Copy(S, 1, 7)) = '{$ENDIF' then
begin
FoldRanges.StopFoldRange(Line + 1, FT_ConditionalDirective);
Result := True;
end;
end;
function IsMultiLineStatement(Line : integer; Ranges: TRangeStates;
Fold : Boolean; FoldType: Integer = 1): Boolean;
begin
Result := True;
if TRangeState(GetLineRange(LinesToScan, Line)) in Ranges then
begin
if Fold and not (TRangeState(GetLineRange(LinesToScan, Line - 1)) in Ranges) then
FoldRanges.StartFoldRange(Line + 1, FoldType)
else
FoldRanges.NoFoldInfo(Line + 1);
end
else if Fold and (TRangeState(GetLineRange(LinesToScan, Line - 1)) in Ranges) then
begin
FoldRanges.StopFoldRange(Line + 1, FoldType);
end else
Result := False;
end;
begin
for Line := FromLine to ToLine do
begin
// Deal first with Multiline statements
if IsMultiLineStatement(Line, [rsCommentAnsi, rsCommentC, rsCommentBor], True, FT_Comment) or
IsMultiLineStatement(Line, [rsAsm, rsAsmCommentC, rsAsmDirective], True, FT_Asm) or
IsMultiLineStatement(Line, [rsStringDouble], True, FT_StringDouble) or
IsMultiLineStatement(Line, [rsStringSingle], True, FT_StringSingle) or
IsMultiLineStatement(Line, [rsDirective], False)
then
Continue;
CurLine := LinesToScan[Line];
// Skip empty lines
if CurLine = '' then begin
FoldRanges.NoFoldInfo(Line + 1);
Continue;
end;
// Deal with ConditionalDirectives
if ConditionalDirective(Line) then
Continue;
// Find Fold regions
if FoldRegion(Line) then
Continue;
// Implementation
if Uppercase(TrimLeft(CurLine)) = 'IMPLEMENTATION' then
FoldRanges.StartFoldRange(Line +1, FT_Implementation)
// Functions and procedures
else if RE_Code.Exec(CurLine) then
FoldRanges.StartFoldRange(Line +1, FT_CodeDeclaration)
// Find begin or end (Fold Type 1)
else if not BlockDelimiter(Line) then
FoldRanges.NoFoldInfo(Line + 1);
end; //for Line
end;
procedure TSynDWSSyn.AdjustFoldRanges(FoldRanges: TSynFoldRanges;
LinesToScan: TStrings);
{
Provide folding for procedures and functions included nested ones.
}
Var
i, j, SkipTo: Integer;
ImplementationIndex: Integer;
FoldRange: TSynFoldRange;
begin
ImplementationIndex := - 1;
for i := FoldRanges.Ranges.Count - 1 downto 0 do
begin
if FoldRanges.Ranges.List[i].FoldType = FT_Implementation then
ImplementationIndex := i
else if FoldRanges.Ranges.List[i].FoldType = FT_CodeDeclaration then
begin
if ImplementationIndex >= 0 then begin
// Code declaration in the Interface part of a unit
FoldRanges.Ranges.Delete(i);
Dec(ImplementationIndex);
continue;
end;
// Examine the following ranges
SkipTo := 0;
j := i + 1;
while J < FoldRanges.Ranges.Count do begin
FoldRange := FoldRanges.Ranges.List[j];
Inc(j);
case FoldRange.FoldType of
// Nested procedure or function
FT_CodeDeclarationWithBody:
begin
SkipTo := FoldRange.ToLine;
continue;
end;
FT_Standard:
// possibly begin end;
if FoldRange.ToLine <= SkipTo then
Continue
else if RE_BlockBegin.Exec(LinesToScan[FoldRange.FromLine - 1]) then
begin
if LowerCase(RE_BlockBegin.Match[0]) = 'begin' then
begin
// function or procedure followed by begin end block
// Adjust ToLine
FoldRanges.Ranges.List[i].ToLine := FoldRange.ToLine;
FoldRanges.Ranges.List[i].FoldType := FT_CodeDeclarationWithBody;
break
end else
begin
// class or record declaration follows, so
FoldRanges.Ranges.Delete(i);
break;
end;
end else
Assert(False, 'TSynDWSSyn.AdjustFoldRanges');
else
begin
if FoldRange.ToLine <= SkipTo then
Continue
else begin
// Otherwise delete
// eg. function definitions within a class definition
FoldRanges.Ranges.Delete(i);
break
end;
end;
end;
end;
end;
end;
if ImplementationIndex >= 0 then
// Looks better without it
//FoldRanges.Ranges.List[ImplementationIndex].ToLine := LinesToScan.Count;
FoldRanges.Ranges.Delete(ImplementationIndex);
end;
{$ENDIF}
procedure TSynDWSSyn.SetRange(Value: Pointer);
begin
FRange := TRangeState(Value);
end;
procedure TSynDWSSyn.ResetRange;
begin
FRange := rsUnknown;
end;
function TSynDWSSyn.GetSampleSource: UnicodeString;
begin
Result :=
'{ Syntax highlighting }'#13#10 +
'procedure TForm1.Button1Click(Sender: TObject);'#13#10 +
'var'#13#10 +
' Number, I, X: Integer;'#13#10 +
'begin'#13#10 +
' Number := 123456;'#13#10 +
' Caption := ''The Number is'' + #32 + IntToStr(Number);'#13#10 +
' for I := 0 to Number do'#13#10 +
' begin'#13#10 +
' Inc(X);'#13#10 +
' Dec(X);'#13#10 +
' X := X + 1.0;'#13#10 +
' X := X - $5E;'#13#10 +
' end;'#13#10 +
' {$R+}'#13#10 +
' asm'#13#10 +
' mov AX, 1234H'#13#10 +
' mov Number, AX'#13#10 +
' end;'#13#10 +
' {$R-}'#13#10 +
'end;';
end;
class function TSynDWSSyn.GetLanguageName: string;
begin
Result := SYNS_LangPascal;
end;
class function TSynDWSSyn.GetCapabilities: TSynHighlighterCapabilities;
begin
Result := inherited GetCapabilities + [hcUserSettings];
end;
function TSynDWSSyn.IsFilterStored: Boolean;
begin
Result := FDefaultFilter <> SYNS_FilterPascal;
end;
// IsCurrentToken
//
function TSynDWSSyn.IsCurrentToken(const Token: UnicodeString): Boolean;
var
i: Integer;
temp: PWideChar;
begin
temp := FToIdent;
if Length(Token) = FStringLen then
begin
Result := True;
for i := 1 to FStringLen do
begin
if (temp^ <> Token[i]) and ((temp^>'z') or (UpCase(temp^) <> UpCase(Token[i]))) then
begin
Result := False;
Break;
end;
Inc(temp);
end;
end
else
Result := False;
end;
// IsIdentChar
//
function TSynDWSSyn.IsIdentChar(AChar: WideChar): Boolean;
begin
if Ord(AChar) <= $7F then
Result := AnsiChar(AChar) in ['_', '0'..'9', 'A'..'Z', 'a'..'z']
else
Result := {$IFDEF SYN_COMPILER_18_UP}AChar.IsLetterOrDigit{$ELSE}TCharacter.IsLetterOrDigit(AChar){$ENDIF};
end;
class function TSynDWSSyn.GetFriendlyLanguageName: UnicodeString;
begin
Result := SYNS_FriendlyLangPascal;
end;
initialization
{$IFNDEF SYN_CPPB_1}
RegisterPlaceableHighlighter(TSynDWSSyn);
{$ENDIF}
end.