Files
HeidiSQL/components/synedit/Source/SynHighlighterAWK.pas
2021-03-16 20:12:46 +01:00

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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: SynHighlighterAWK.pas, released 2000-06-18.
The Original Code is based on the hkAWKSyn.pas file from the
mwEdit component suite by Martin Waldenburg and other developers, the Initial
Author of this file is Hideo Koiso.
Unicode translation by Maël Hörz.
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: SynHighlighterAWK.pas,v 1.10.2.6 2008/09/14 16:24:59 maelh 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 AWK Script highlighter for SynEdit)
@author(Hideo Koiso <sprhythm@fureai.or.jp>, converted to SynEdit by David Muir <dhm@dmsoftware.co.uk>)
@created(7 November 1999, converted to SynEdit April 18, 2000)
@lastmod(June 19, 2000)
The SynHighlighterAWK unit provides SynEdit with a AWK Script (.awk) highlighter.
}
unit SynHighlighterAWK;
interface
{$I SynEdit.inc}
uses
Graphics,
SynEditTypes,
SynEditHighlighter,
SynUnicode,
SysUtils,
Classes;
type
TtkTokenKind = (tkComment, tkIdentifier, tkInterFunc, tkKey, tkNull,
tkNumber, tkSpace, tkString, tkSymbol, tkSysVar, tkUnknown);
TSynAWKSyn = class(TSynCustomHighLighter)
private
AWKSyntaxList: TUnicodeStringList;
FTokenID: TtkTokenKind;
FCommentAttri: TSynHighlighterAttributes;
FIdentifierAttri: TSynHighlighterAttributes;
FInterFuncAttri: TSynHighlighterAttributes;
FKeyAttri: TSynHighlighterAttributes;
FNumberAttri: TSynHighlighterAttributes;
FSpaceAttri: TSynHighlighterAttributes;
FStringAttri: TSynHighlighterAttributes;
FSymbolAttri: TSynHighlighterAttributes;
FSysVarAttri: TSynHighlighterAttributes;
procedure AndProc;
procedure CommentProc;
procedure CRProc;
procedure ExclamProc;
procedure FieldRefProc;
procedure IdentProc;
procedure LFProc;
procedure MakeSyntaxList;
procedure MinusProc;
procedure NullProc;
procedure OpInputProc;
procedure OrProc;
procedure PlusProc;
procedure QuestionProc;
procedure SpaceProc;
procedure StringProc;
procedure SymbolProc;
procedure NumberProc;
procedure BraceProc;
protected
function IsFilterStored: Boolean; override;
public
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 GetTokenID: TtkTokenKind;
function GetTokenAttribute: TSynHighlighterAttributes; override;
function GetTokenKind: Integer; override;
procedure Next; override;
published
property CommentAttri: TSynHighlighterAttributes read FCommentAttri
write FCommentAttri;
property IdentifierAttri: TSynHighlighterAttributes read FIdentifierAttri
write FIdentifierAttri;
property InterFuncAttri: TSynHighlighterAttributes read FInterFuncAttri
write FInterFuncAttri;
property KeyAttri: TSynHighlighterAttributes read FKeyAttri write FKeyAttri;
property NumberAttri: TSynHighlighterAttributes read FNumberAttri
write FNumberAttri;
property SpaceAttri: TSynHighlighterAttributes read FSpaceAttri
write FSpaceAttri;
property SymbolAttri: TSynHighlighterAttributes read FSymbolAttri
write FSymbolAttri;
property SysVarAttri: TSynHighlighterAttributes read FSysVarAttri
write FSysVarAttri;
property StringAttri: TSynHighlighterAttributes read FStringAttri
write FStringAttri;
end;
implementation
uses
{$IFDEF UNICODE}
WideStrUtils,
{$ENDIF}
SynEditStrConst;
procedure TSynAWKSyn.MakeSyntaxList;
begin
with AWKSyntaxList do
begin
Sorted := True;
{ *** Preferably sort and put previously. *** }
AddObject('ARGC', TObject(tkSysVar));
AddObject('ARGIND', TObject(tkSysVar)); { GNU Extention }
AddObject('ARGV', TObject(tkSysVar));
AddObject('atan2', TObject(tkInterFunc));
AddObject('BEGIN', TObject(tkKey));
AddObject('break', TObject(tkKey));
AddObject('close', TObject(tkInterFunc));
AddObject('continue', TObject(tkKey));
AddObject('CONVFMT', TObject(tkSysVar)); { POSIX Extention }
AddObject('cos', TObject(tkInterFunc));
AddObject('delete', TObject(tkInterFunc));
AddObject('do', TObject(tkKey));
AddObject('else', TObject(tkKey));
AddObject('END', TObject(tkKey));
AddObject('ENVIRON', TObject(tkSysVar));
AddObject('ERRNO', TObject(tkSysVar)); { GNU Extention }
AddObject('exit', TObject(tkKey));
AddObject('exp', TObject(tkInterFunc));
AddObject('FIELDWIDTH', TObject(tkSysVar)); { GNU Extention }
AddObject('FILENAME', TObject(tkSysVar));
AddObject('FNR', TObject(tkSysVar));
AddObject('for', TObject(tkKey));
AddObject('FS', TObject(tkSysVar));
AddObject('function', TObject(tkKey));
AddObject('getline', TObject(tkKey));
AddObject('gsub', TObject(tkInterFunc));
AddObject('if', TObject(tkKey));
AddObject('IGNORECASE', TObject(tkSysVar));
AddObject('index', TObject(tkInterFunc));
AddObject('int', TObject(tkInterFunc));
AddObject('jindex', TObject(tkInterFunc)); { jgawk }
AddObject('jlength', TObject(tkInterFunc)); { jgawk }
AddObject('jsubstr', TObject(tkInterFunc)); { jgawk }
AddObject('length', TObject(tkInterFunc));
AddObject('log', TObject(tkInterFunc));
AddObject('match', TObject(tkInterFunc));
AddObject('next', TObject(tkUnknown)); { & next file (GNU Extention) }
AddObject('NF', TObject(tkSysVar));
AddObject('NR', TObject(tkSysVar));
AddObject('OFMT', TObject(tkSysVar));
AddObject('OFS', TObject(tkSysVar));
AddObject('ORS', TObject(tkSysVar));
AddObject('print', TObject(tkKey));
AddObject('printf', TObject(tkInterFunc));
AddObject('rand', TObject(tkInterFunc));
AddObject('return', TObject(tkKey));
AddObject('RLENGTH', TObject(tkSysVar));
AddObject('RS', TObject(tkSysVar));
AddObject('RSTART', TObject(tkSysVar));
AddObject('sin', TObject(tkInterFunc));
AddObject('split', TObject(tkInterFunc));
AddObject('sprintf', TObject(tkInterFunc));
AddObject('sqrt', TObject(tkInterFunc));
AddObject('srand', TObject(tkInterFunc));
AddObject('strftime', TObject(tkInterFunc)); { GNU Extention }
AddObject('sub', TObject(tkInterFunc));
AddObject('SUBSEP', TObject(tkSysVar));
AddObject('substr', TObject(tkInterFunc));
AddObject('system', TObject(tkInterFunc));
AddObject('systime', TObject(tkInterFunc)); { GNU Extention }
AddObject('tolower', TObject(tkInterFunc));
AddObject('toupper', TObject(tkInterFunc));
AddObject('while', TObject(tkKey));
end;
end;
procedure TSynAWKSyn.BraceProc;
begin
FTokenID := tkIdentifier;
Inc(Run);
end;
procedure TSynAWKSyn.NumberProc;
begin
FTokenID := tkNumber;
Inc(Run);
while CharInSet(FLine[Run], ['0'..'9']) do
Inc(Run);
end;
procedure TSynAWKSyn.IdentProc;
var
i: Integer;
idx: Integer;
s: UnicodeString;
begin
i := Run;
while CharInSet(FLine[i], ['a'..'z', 'A'..'Z']) do
Inc(i);
SetLength(s, i - Run);
WStrLCopy(PWideChar(s), FLine + Run, i - Run);
Run := i;
if AWKSyntaxList.Find(s, idx) and (AWKSyntaxList.Strings[idx] = s) then
begin
FTokenID := TtkTokenKind(AWKSyntaxList.Objects[idx]);
if (FTokenID = tkUnKnown) then
begin
FTokenID := tkKey;
if (FLine[i] = ' ') then
begin
while (FLine[i] = ' ') do
Inc(i);
if (FLine[i + 0] = 'f') and
(FLine[i + 1] = 'i') and
(FLine[i + 2] = 'l') and
(FLine[i + 3] = 'e') and
CharInSet(FLine[i + 4], [#0..#32, ';']) then
begin
Run := (i + 4);
end;
end;
end;
end
else
FTokenID := tkIdentifier;
end;
procedure TSynAWKSyn.Next;
begin
FTokenPos := Run;
case FLine[Run] of
#0: NullProc;
#10: LFProc;
#13: CRProc;
#1..#9, #11, #12, #14..#32: SpaceProc;
'"', #$27: StringProc; { "..." }
'(', ')', '[', ']': BraceProc; { (, ), [ and ] }
'#': CommentProc; { # ... }
'$': FieldRefProc; { $0 .. $9 }
'+': PlusProc; { +, ++ and += }
'-': MinusProc; { -, -- and -= }
'!': ExclamProc; { ! and !~ }
'?': QuestionProc; { ?: }
'|': OrProc; { || }
'&': AndProc; { && }
'*', '/', '%', '^', '<', '=', '>': OpInputProc; { *=, /=, %= ... etc. }
'a'..'z', 'A'..'Z': IdentProc;
'0'..'9': NumberProc;
else SymbolProc;
end;
inherited;
end;
procedure TSynAWKSyn.StringProc;
begin
repeat
Inc(Run);
if (FLine[Run] = '"') and (FLine[Run - 1] <> '\') then
begin
FTokenID := tkString;
Inc(Run);
Exit;
end;
until CharInSet(FLine[Run], [#0..#31]);
FTokenID := tkIdentifier;
end;
procedure TSynAWKSyn.CommentProc;
begin
FTokenID := tkComment;
while not IsLineEnd(Run) do
Inc(Run);
end;
procedure TSynAWKSyn.FieldRefProc;
function IsAlphaNumChar(Run: Integer): Boolean;
begin
case FLine[Run] of
'0'..'9', 'a'..'z', 'A'..'Z':
Result := True;
else
Result := False;
end;
end;
begin
Inc(Run);
if CharInSet(FLine[Run], ['0'..'9']) and not IsAlphaNumChar(Run + 1) then
begin
FTokenID := tkSymbol;
Inc(Run);
end
else
FTokenID := tkIdentifier;
end;
procedure TSynAWKSyn.SymbolProc;
begin
FTokenID := tkSymbol;
Inc(Run);
end;
procedure TSynAWKSyn.PlusProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if CharInSet(FLine[Run], ['+', '=']) then
Inc(Run);
end;
procedure TSynAWKSyn.MinusProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if CharInSet(FLine[Run], ['-', '=']) then
Inc(Run);
end;
procedure TSynAWKSyn.OpInputProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if (FLine[Run] = '=') then
Inc(Run);
end;
procedure TSynAWKSyn.ExclamProc;
begin
FTokenID := tkSymbol;
Inc(Run);
if CharInSet(FLine[Run], ['=', '~']) then
Inc(Run);
end;
procedure TSynAWKSyn.QuestionProc;
begin
Inc(Run);
if (FLine[Run] = ':') then
begin
FTokenID := tkSymbol;
Inc(Run);
end
else
FTokenID := tkIdentifier;
end;
procedure TSynAWKSyn.OrProc;
begin
Inc(Run);
if (FLine[Run] = '|') then
begin
FTokenID := tkSymbol;
Inc(Run);
end
else
FTokenID := tkIdentifier;
end;
procedure TSynAWKSyn.AndProc;
begin
Inc(Run);
if (FLine[Run] = '&') then
begin
FTokenID := tkSymbol;
Inc(Run);
end
else
FTokenID := tkIdentifier;
end;
constructor TSynAWKSyn.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FCaseSensitive := True;
FCommentAttri := TSynHighlighterAttributes.Create(SYNS_AttrComment, SYNS_FriendlyAttrComment);
FCommentAttri.Foreground := clBlue;
AddAttribute(FCommentAttri);
FIdentifierAttri := TSynHighlighterAttributes.Create(SYNS_AttrIdentifier, SYNS_FriendlyAttrIdentifier);
AddAttribute(FIdentifierAttri);
FInterFuncAttri := TSynHighlighterAttributes.Create(SYNS_AttrInternalFunction, SYNS_FriendlyAttrInternalFunction);
FInterFuncAttri.Foreground := $00408080;
FInterFuncAttri.Style := [fsBold];
AddAttribute(FInterFuncAttri);
FKeyAttri := TSynHighlighterAttributes.Create(SYNS_AttrReservedWord, SYNS_FriendlyAttrReservedWord);
FKeyAttri.Foreground := $00FF0080;
FKeyAttri.Style := [fsBold];
AddAttribute(FKeyAttri);
FNumberAttri := TSynHighlighterAttributes.Create(SYNS_AttrNumber, SYNS_FriendlyAttrNumber);
AddAttribute(FNumberAttri);
FSpaceAttri := TSynHighlighterAttributes.Create(SYNS_AttrSpace, SYNS_FriendlyAttrSpace);
AddAttribute(FSpaceAttri);
FStringAttri := TSynHighlighterAttributes.Create(SYNS_AttrString, SYNS_FriendlyAttrString);
FStringAttri.Foreground := clTeal;
AddAttribute(FStringAttri);
FSymbolAttri := TSynHighlighterAttributes.Create(SYNS_AttrSymbol, SYNS_FriendlyAttrSymbol);
FSymbolAttri.Style := [fsBold];
AddAttribute(FSymbolAttri);
FSysVarAttri := TSynHighlighterAttributes.Create(SYNS_AttrSystemValue, SYNS_FriendlyAttrSystemValue);
FSysVarAttri.Foreground := $000080FF;
FSysVarAttri.Style := [fsBold];
AddAttribute(FSysVarAttri);
SetAttributesOnChange(DefHighlightChange);
AWKSyntaxList := TUnicodeStringList.Create;
MakeSyntaxList;
FDefaultFilter := SYNS_FilterAWK;
end;
destructor TSynAWKSyn.Destroy;
begin
AWKSyntaxList.Free;
inherited Destroy;
end;
procedure TSynAWKSyn.CRProc;
begin
FTokenID := tkSpace;
Inc(Run);
if FLine[Run] = #10 then Inc(Run);
end;
procedure TSynAWKSyn.LFProc;
begin
FTokenID := tkSpace;
Inc(Run);
end;
procedure TSynAWKSyn.NullProc;
begin
FTokenID := tkNull;
Inc(Run);
end;
procedure TSynAWKSyn.SpaceProc;
begin
Inc(Run);
FTokenID := tkSpace;
while (FLine[Run] <= #32) and not IsLineEnd(Run) do Inc(Run);
end;
function TSynAWKSyn.GetDefaultAttribute(Index: Integer): TSynHighlighterAttributes;
begin
case Index of
SYN_ATTR_COMMENT: Result := FCommentAttri;
SYN_ATTR_KEYWORD: Result := FKeyAttri;
SYN_ATTR_WHITESPACE: Result := FSpaceAttri;
SYN_ATTR_SYMBOL: Result := FSymbolAttri;
else
Result := nil;
end;
end;
function TSynAWKSyn.GetEol: Boolean;
begin
Result := Run = FLineLen + 1;
end;
function TSynAWKSyn.GetTokenID: TtkTokenKind;
begin
Result := FTokenID;
end;
function TSynAWKSyn.GetTokenAttribute: TSynHighlighterAttributes;
begin
case FTokenID of
tkComment: Result := FCommentAttri;
tkIdentifier: Result := FIdentifierAttri;
tkInterFunc: Result := FInterFuncAttri;
tkKey: Result := FKeyAttri;
tkNumber: Result := FNumberAttri;
tkSpace: Result := FSpaceAttri;
tkString: Result := FStringAttri;
tkSymbol: Result := FSymbolAttri;
tkSysVar: Result := FSysVarAttri;
else
Result := nil;
end;
end;
function TSynAWKSyn.GetTokenKind: Integer;
begin
Result := Ord(FTokenID);
end;
function TSynAWKSyn.IsFilterStored: Boolean;
begin
Result := FDefaultFilter <> SYNS_FilterAWK;
end;
class function TSynAWKSyn.GetLanguageName: string;
begin
Result := SYNS_LangAWK;
end;
class function TSynAWKSyn.GetFriendlyLanguageName: UnicodeString;
begin
Result := SYNS_FriendlyLangAWK;
end;
initialization
{$IFNDEF SYN_CPPB_1}
RegisterPlaceableHighlighter(TSynAWKSyn);
{$ENDIF}
end.