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HeidiSQL/components/synedit/Demos/uHighlighterProcs.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: uHighlighterProcs.pas, released 2000-06-23.
The Initial Author of the Original Code is Michael Hieke.
All Rights Reserved.
Contributors to the SynEdit project 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: uHighlighterProcs.pas,v 1.3 2002/06/15 06:57:24 etrusco Exp $
You may retrieve the latest version of this file at the SynEdit home page,
located at http://SynEdit.SourceForge.net
Known Issues:
-------------------------------------------------------------------------------}
unit uHighlighterProcs;
interface
uses
Classes, SynEditHighlighter;
procedure GetHighlighters(AOwner: TComponent; AHighlighters: TStringList;
AppendToList: boolean);
function GetHighlightersFilter(AHighlighters: TStringList): string;
function GetHighlighterFromFileExt(AHighlighters: TStringList;
Extension: string): TSynCustomHighlighter;
implementation
uses
SysUtils;
procedure GetHighlighters(AOwner: TComponent; AHighlighters: TStringList;
AppendToList: boolean);
var
i: integer;
Highlighter: TSynCustomHighlighter;
begin
if Assigned(AOwner) and Assigned(AHighlighters) then begin
if not AppendToList then
AHighlighters.Clear;
for i := AOwner.ComponentCount - 1 downto 0 do begin
if not (AOwner.Components[i] is TSynCustomHighlighter) then
continue;
Highlighter := AOwner.Components[i] as TSynCustomHighlighter;
// only one highlighter for each language
if AHighlighters.IndexOf(Highlighter.GetLanguageName) = -1 then
AHighlighters.AddObject(Highlighter.GetLanguageName, Highlighter);
end;
AHighlighters.Sort;
end;
end;
function GetHighlightersFilter(AHighlighters: TStringList): string;
var
i: integer;
Highlighter: TSynCustomHighlighter;
begin
Result := '';
if Assigned(AHighlighters) then
for i := 0 to AHighlighters.Count - 1 do begin
if not (AHighlighters.Objects[i] is TSynCustomHighlighter) then
continue;
Highlighter := TSynCustomHighlighter(AHighlighters.Objects[i]);
if Highlighter.DefaultFilter = '' then
continue;
Result := Result + Highlighter.DefaultFilter;
if Result[Length(Result)] <> '|' then
Result := Result + '|';
end;
end;
function GetHighlighterFromFileExt(AHighlighters: TStringList;
Extension: string): TSynCustomHighlighter;
var
ExtLen: integer;
i, j: integer;
Highlighter: TSynCustomHighlighter;
Filter: string;
begin
Extension := LowerCase(Extension);
ExtLen := Length(Extension);
if Assigned(AHighlighters) and (ExtLen > 0) then begin
for i := 0 to AHighlighters.Count - 1 do begin
if not (AHighlighters.Objects[i] is TSynCustomHighlighter) then
continue;
Highlighter := TSynCustomHighlighter(AHighlighters.Objects[i]);
Filter := LowerCase(Highlighter.DefaultFilter);
j := Pos('|', Filter);
if j > 0 then begin
Delete(Filter, 1, j);
j := Pos(Extension, Filter);
if (j > 0) and
((j + ExtLen > Length(Filter)) or (Filter[j + ExtLen] = ';'))
then begin
Result := Highlighter;
exit;
end;
end;
end;
end;
Result := nil;
end;
end.