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{ Converter for wiki pages to html pages
Copyright (C) 2012 Mattias Gaertner mattias@freepascal.org
This source is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
This code is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
A copy of the GNU General Public License is available on the World Wide Web
at <http://www.gnu.org/copyleft/gpl.html>. You can also obtain it by writing
to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
Boston, MA 02110-1335, USA.
}
unit Wiki2HTMLConvert;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Wiki2XHTMLConvert, WikiParser, LazLoggerBase, laz2_DOM,
LazUTF8;
type
{ TW2HTMLPage
for future extensions and descendants }
TW2HTMLPage = class(TW2XHTMLPage)
public
end;
{ TWiki2HTMLConverter }
TWiki2HTMLConverter = class(TWiki2XHTMLConverter)
protected
procedure SavePageToStream(Page: TW2XHTMLPage; aStream: TStream); virtual;
procedure SavePage(Page: TW2XHTMLPage); override;
public
constructor Create; override;
end;
implementation
{ TWiki2HTMLConverter }
procedure TWiki2HTMLConverter.SavePageToStream(Page: TW2XHTMLPage;
aStream: TStream);
var
LastNodeWasText: boolean;
FirstLine: boolean;
procedure w(s: string);
begin
if s='' then exit;
aStream.Write(s[1],length(s));
end;
procedure Traverse(ParentNode: TDOMNode; PreserveSpace: boolean);
var
Node: TDOMNode;
Element: TDOMElement;
i: Integer;
s: DOMString;
TagName: DOMString;
OldPreserveSpace: Boolean;
begin
for Node in ParentNode do begin
if Node is TDOMText then begin
s:=TDOMText(Node).Data;
if UTF8Trim(s)='' then continue;
LastNodeWasText:=true;
w(s);
end else if Node is TDOMElement then begin
if not LastNodeWasText then begin
if FirstLine then
FirstLine:=false
else
w(LineEnding);
w(Space(Node.GetLevel*2-2));
end;
Element:=TDOMElement(Node);
w('<');
w(Element.TagName);
OldPreserveSpace:=PreserveSpace;
if Element.TagName='pre' then
PreserveSpace:=true;
for i:=0 to Element.Attributes.Length-1 do begin
w(' ');
w(Element.Attributes[i].NodeName);
w('="');
w(StrToXMLValue(Element.Attributes[i].NodeValue));
w('"');
end;
if Node.FirstChild <> nil then
w('>')
else
w('/>');
LastNodeWasText:=PreserveSpace;
if (Node.FirstChild<>nil) then begin
Traverse(Node,PreserveSpace);
if not LastNodeWasText then begin
w(LineEnding);
w(Space(Node.GetLevel*2-2));
end;
w('</');
w(Element.TagName);
w('>');
LastNodeWasText:=PreserveSpace;
end else if Node is TDOMElement then begin
TagName:=lowercase(TDOMElement(Node).TagName);
if (TagName='td') then begin
// tag needs at least a space
w(' </');
w(Element.TagName);
w('>');
end;
end;
PreserveSpace:=OldPreserveSpace;
end;
end;
end;
begin
LastNodeWasText:=false;
FirstLine:=true;
Traverse(Page.XHTML,false);
end;
procedure TWiki2HTMLConverter.SavePage(Page: TW2XHTMLPage);
var
ms: TMemoryStream;
Filename: String;
begin
if OutputDir='' then exit;
if Page.XHTML=nil then exit;
Filename:=PageToFilename(Page,true);
Log('TWiki2HTMLConverter.SavePage '+Filename);
ms:=TMemoryStream.Create;
try
SavePageToStream(Page,ms);
ms.Position:=0;
ms.SaveToFile(Filename);
finally
ms.Free;
end;
end;
constructor TWiki2HTMLConverter.Create;
begin
inherited Create;
FPageClass:=TW2HTMLPage;
FOutputDir:='html';
PageFileExt:='.html';
end;
end.
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