OXml - The next generation XML library for Pascal (Delphi, FPC, Lazarus)

OXml Features

Library design

• Use the same XML library for all your Pascal projects including:
  1. Delphi for Win32, Win64 and OSX (Delphi 5 and newer).
  2. Delphi ARC/NEXTGEN for iOS and Android (Delphi XE4 and newer).
  3. Delphi ARC/NEXTGEN for Linux (Delphi 10.2 and newer).
  4. Lazarus on Win32, Win64, Linux, OSX (Lazarus 1.0 and newer).
• Native pascal object oriented code.
• No external dll libraries are required.
• No dependency on a visual library like VCL, LCL or FMX.
• Full unicode support even for D5-D2007.
• Powerful XPath engine.
• Fast, powerful and easy-to-use namespace support for reading documents.
• Faster than everything else on all platforms thanks to various optimizations.
• OXml is able to read and write invalid XML documents and correct errors in them (if wanted). If not wanted, OXml throws an exception when you are trying to read/write an invalid XML document.
• Supports all on the platform available encodings (UTF-16, UTF-8, single-byte ISO, WIN, KOI8...) by all parsers automatically. That means that the encoding is read and set from the <?xml encoding="" ?> tag during both reading and writing.

Readers and writers included in OXml

1. TXMLWriter (OXmlReadWrite.pas): Basic XML writer. All other classes use it.
   Use it directly if performance is crucial for you.
2. TXMLReader (OXmlReadWrite.pas): Basic XML reader. All other classes use it.
   Don't use it directly. If performance is crucial for you, use SAX which has the same performance but is much more comfortable to work with.
3. TSAXParser (OXmlSAX.pas): Event-based parser according to the SAX specification.
   Anonymous methods are supported for modern Delphi versions, too. It's very fast and needs practically no memory.
4. IXMLDocument (OXmlPDOM.pas): Record-based DOM according to the W3C DOM Level 1 specification. (Not strict - some small changes have been made to maximize performance).
   The fastest and most memory-friendly DOM for Pascal.
5. IXMLDocument (OXmlCDOM.pas): TObject-based DOM according to the W3C DOM Level 1 specification. (Not strict - some small changes have been made to maximize performance).
   For those who don't like the "old-school" approach of OXmlPDOM.pas. There is some performance and memory consumption penalty, though.
6. TXMLSeqParser (OXmlSeq.pas): Sequential DOM parser based on OXmlPDOM.pas.
   Read huge XML files into the DOM sequentionally. This method combines DOM capabilities without the need to load the whole document at once.
   OXmlSeq is even a little bit faster than OXmlPDOM.
7. sOXmlDOMVendor (OXmlDOMVendor.pas): fastest DOM vendor for Delphi's own TXMLDocument.
   Use TXMLDocument(MyXmlDoc).DOMVendor := GetDOMVendor(sOXmlDOMVendor) if you want to use Delphi's default TXMLDocument with the fastest and cross-platform vendor.

What are the differences between OXmlPDOM and OmniXML / MS XML?

1. In general OXmlPDOM is very close to both implementations. They share the same functions and properties.
2. OmniXML and MS XML are interfaced-based. That means that nodes are created one-by-one and when they are not referenced any more, they are automatically destroyed.
   OXmlPDOM is record-based. Nodes are created by groups of 1024 items, which offers stunning performance. They are automatically destroyed only when the owner XML document is destroyed. Therefore such functions do not free memory used by a node:
   • TXMLNode.RemoveChild()
   • TXMLNode.ReplaceChild()
   When using OXmlPDOM you should call TXMLNode.DeleteChild(), TXMLNode.DeleteAttribute() or TXMLNode.DeleteSelf in order to be sure the node memory is marked as free and can be reused again.
3. The nodes are of PXMLNode type - pointer to TXMLNode structure. Strictly speaking, PXMLNode nodes have to be dereferenced to TXMLNode when used but Delphi does this dereferencing for you, so you can easily use: XML.DocumentElement.AddChild('child');
   If you use FPC/Lazarus in Delphi mode ({$MODE DELPHI}), the nodes get dereferenced too. But if you use FPC/Lazarus in default mode, you have to dereference it manually with the "^" operator: XML.DocumentElement^.AddChild('child');
   If you don't like this approach, use OXmlCDOM.pas instead of OXmlPDOM.pas.
4. OXmlPDOM does not store child nodes and attributes in AttributeNodes and ChildNodes lists.
   That means that the lists are created only when they are needed by the user. AttributeNodes and ChildNodes are not typical TList descendants but they are doubly linked lists with fast index iteration and count function support.

Migration table from OmniXML to OXml

for I := 0 to Node.ChildNodes.Count-1 do
begin
  ChildNode := Node.ChildNodes.Item[I];
  [...]
end;

ChildNode := nil;
while Node.GetNextChild(ChildNode) do
begin
  [...]
end;

ChildNode := Node.FirstChild;
while Assigned(ChildNode) do
begin
  [...]
  ChildNode := ChildNode.NextSibling;
end;

Example code

Please take a short look into the source code for a full list of properties and methods. Everything should be commented in the source code.

Please see the DEMO application for your compiler (unicode Delphi, non-unicode Delphi, Lazarus) for more code!

Here is a short example code:

OXml DOM (OXmlPDOM.pas)

uses OXmlPDOM;

procedure TestOXmlPDOM;
var
  XML: IXMLDocument;
  Root, Node, Attribute: PXMLNode;
begin
  //CREATE XML DOC
  XML := CreateXMLDoc('root', True);//create XML doc with root node named "root"
  Root := XML.DocumentElement;

  Node := Root.AddChild('child');//add child to root node
  Node.SetAttribute('attribute1', 'value1');//set attribute value

  Node := Root.AddChild('child');
  Node.SetAttribute('attribute2', 'value2');

  XML.SaveToFile('S:\test.xml');//save XML document

  //READ XML DOC
  XML := CreateXMLDoc;//create empty XML doc

  XML.LoadFromFile('S:\test.xml');//load XML document
  Root := XML.DocumentElement;//save the root into local variable
  //iterate through all child nodes -> you MUST set the node to nil
  Node := nil;
  while Root.GetNextChild(Node) do
  begin
    //iterate through all attributes -> you MUST set the node to nil
    Attribute := nil;
    while Node.GetNextAttribute(Attribute) do
      ShowMessage(Node.NodeName+'['+
        Attribute.NodeName+'] = '+
        Attribute.NodeValue);
  end;
end;

OXml SAX (OXmlSAX.pas)

uses OXmlSAX;

function SAXEscapeString(const aString: String): String;
begin
  Result := aString;
  Result := StringReplace(Result, sLineBreak, '\n', [rfReplaceAll]);
  Result := StringReplace(Result, '"', '\"', [rfReplaceAll]);
end;

procedure TestOXmlSAX(const aOutputMemo: TMemo);
var
  xSAX: TSAXParser;
const
  cXML: String =
    '<?xml version="1.0"?>'+sLineBreak+
    '<seminararbeit>'+sLineBreak+
    ' <titel>DOM, SAX und SOAP</titel>'+sLineBreak+
    ' <inhalt>'+sLineBreak+
    '  <kapitel value="1">Einleitung</kapitel>'+sLineBreak+
    '  <kapitel value="2">Hauptteil</kapitel>'+sLineBreak+
    '  <kapitel value="3">Fazit</kapitel>'+sLineBreak+
    ' </inhalt>'+sLineBreak+
    ' <!-- comment -->'+sLineBreak+
    ' <![CDATA[ cdata ]]>'+sLineBreak+
    ' <?php echo "custom processing instruction" ?>'+sLineBreak+
    '</seminararbeit>'+sLineBreak;
begin
  aOutputMemo.Lines.Clear;

  xSAX := TSAXParser.Create;
  try
    xSAX.OnCharacters := (
      procedure(aSaxParser: TSAXParser; const aText: OWideString)
      begin
        aOutputMemo.Lines.Add('characters("'+SAXEscapeString(aText)+'")');
      end);

    xSAX.OnStartElement := (
      procedure(aSaxParser: TSAXParser; const aName: String;
        const aAttributes: TSAXAttributes)
      var
        xValueAttr, xAttrStr: String;
      begin
        if aAttributes.Find('value', xValueAttr) then
          xAttrStr := 'value="'+SAXEscapeString(xValueAttr)+'"'
        else
          xAttrStr := '[[attribute "value" not found]]';

        aOutputMemo.Lines.Add(
          'startElement("'+SAXEscapeString(aName)+'", '+xAttrStr+')');
      end);

    xSAX.OnEndElement := (
      procedure(aSaxParser: TSAXParser; const aName: String)
      begin
        aOutputMemo.Lines.Add('endElement("'+SAXEscapeString(aName)+'")');
      end);

    xSAX.ParseXML(cXML);
  finally
    xSAX.Free;
  end;
end;

OXml DOM vendor (OXmlDOMVendor.pas)

uses XmlIntf, XmlDoc, OXmlDOMVendor;

procedure TestOXmlVendor(const aOutputMemo: TMemo);
var
  xXml: XmlDoc.TXMLDocument;
  xXmlI: XmlIntf.IXMLDocument;
  xRoot: XmlIntf.IXMLNode;
begin
  xXml := XmlDoc.TXMLDocument.Create(nil);
  xXml.DOMVendor := xmldom.GetDOMVendor(sOXmlDOMVendor);
  xXmlI := xXml;

  //now use xXmlI just like every other TXMLDocument
  xXmlI.Active := True;
  xRoot := xXmlI.Node.AddChild('root');
  xRoot.ChildNodes.Add(xXmlI.CreateNode('text', ntText));
  xRoot.ChildNodes.Add(xXmlI.CreateNode('node', ntElement));

  aOutputMemo.Lines.Text := xXmlI.Node.XML;
end;

License

OXml Commercial License
-----------------------

Author, initial developer of the OXml library:
  Copyright (C) 2011-2017 Ondrej Pokorny
  http://www.kluug.net
  All rights reserved.

This license applies to orders after April 10th, 2017.

*** BEGIN LICENSE BLOCK *****

OXml LICENSE
------------

 1) Usage

     You may use OXml for any kind of end-user applications developed only by
     you (single-development license) or the company (company license) that
     purchased an OXml license.

 2) Limitations

     a. Only developers who work for the license holder company may use OXml.
        That includes freelancers but only in projects assigned to them by the license
        holder company.

     b. The number of active developers who use OXml must not exceed the total number
        of licensed developers that the license(s) of the holder company provide(s) for.

     c. You must not use OXml for writing libraries and applications that are in direct
        or indirect competition with OXml or tools whose main purpose is providing OXml
        functionality. OXml functionality has to be an extension to an existing
        application (e.g. import/export XML data in an accounting software).
        If you need a special license, please contact the author.

 3) Transfer of FULL version licenses

     a. Licenses may be transferred to new developers who work for the
        license holder company if all other requirements are met (especially point 3b).

     b. The license may be transferred only as a whole to a different company.
        Example: you buy a 3-developer license. You may transfer it completely to
        a different company. You must not split the license and transfer 1-developer
        license to a different company and keep 2-developer license.

 4) License validity

     a. The license is perpetual.

     b. You get 2 years of free updates and new releases, starting from the day
        of purchase. After this period you can order extra 2 years of updates
        (starting from the day of update expiration) for 60% of the license price
        at the moment of update expiration.

 5) Redistribution of the source code and the DCU's
     a. OXml source code and DCU's must not be redistributed on any kind
        of media or offered for download on any internet server without
        the author's explicit permission.

 6) Limited Warranty
     a. THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
        EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS
        WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF
        ALL NECESSARY SERVICING, REPAIR OR CORRECTION. IN NO EVENT SHALL
        KLUUG.NET OR ANY OTHER PARTY WHO MAY HAVE DISTRIBUTED THE SOFTWARE AS
        PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL,
        SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
        INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
        OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
        PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER
        PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
        POSSIBILITY OF SUCH DAMAGES.


***** END LICENSE BLOCK *****

Performance

All figures in the following tables are the best achieved values from more tests.

As you can see, OXml DOM's (OXmlPDOM.pas) overall reading and writing performance is the best across all compilers. It is even a little bit better than the C-based libxml2 ported to Delphi (DIXml). Furthermore, it's also the least memory hungry DOM.
The slightly worse non-unicode Delphi (D7) performance is a result of Delphi's poor WideString performance.

Download

OXml TRIAL package

• Download OXml TRIAL with demo applications for Delphi: 2.4 (oxml-trial-2-4--2019-06-13.zip)

Installation

If you want to (or need) you can compile the supplied package for your Delphi version.

Order

You may order a roality-free commercial license for a specified number of developers using OXml in your company. A commercial license allows you to use OXml in any kind of end-user application.

The license applies to OXml version available at the moment of purchase and all OXml updates released within 2 years after the purchase.

Pricing & Order

Online orders are managed by PayPal. I also accept bank transfers to my bank account. In this case, please send me an email with your billing address and I send you my account number.

You receive an invoice per email after your payment.

All prices are without VAT.

I offer you a 30-days money-back guarantee if you can't use OXml for what is advertised on this page (because of bugs, compatibility problems etc.).

Commercial licenses

OXml + DataBinding + OJson bundle: this includes the whole OXml package with all XML and JSON units and the DataBinding project - the ability to generate and include PAS-XSD bindings in your software.

OXml XML only: this includes only the XML part of OXml package with DOM, SAX, XML serialization etc. JSON and DataBinding capabilities are not included.

OXml + OJson: this includes the XML and JSON units of OXml package with DOM, SAX, XML&JSON serialization etc. DataBinding capabilities are not included.

Change log

OXml Change Log
---------------

Version 2.3 2018-12-31
  - Delphi 10.3 support
  - Fix D7 compilation
  - ODictionary: add Text function
  - TXMLNode.SelectNodeCreate: support root paths (//test/hello)
  - CreateDataBinding: add Delphi mode
  - OXmlPDOM, OXmlCDOM: publish TXMLDocument.UseReadNameSpaceURI
  - Fix StrToInt??? for Cardinal/Int64/UInt64
  - Fix TXMLNode.InsertProcessingInstruction, TXMLNode.InsertText
  - Extend ISOTryStrToTime, ISOTryStrToDate, ISOTryStrToDateTime
  - OXmlCDOM, OXmlPDOM: new WriterSettings.AddLineBreakOnFileEnd property
  - OXmlRTTISerialize: fix GetCollectionItemXMLName


Version 2.2 2018-10-24
  - Extensively improved OXmlPDataBinding.pas
  - improved RTTI serializer


Version 2.1 2017-06-12
  - Extensively improved OXmlPDataBinding.pas


Version 2.0 2017-05-04
  - New JSON features:
    * OJsonPTree.pas (similar to OXmlPDOM.pas)
    * OJsonEvent.pas with class handlers (similar to OXmlSAX.pas)
  - OXmlPDataBinding.pas + databinding application in databinding directory: data binding for OXmlPDOM.pas
  - Fix ISOStrTo* functions - raise an exception on error
  - RTTI serializer: add Options set, change WriteDefaultValues to Options.xsoWriteDefaultValues, add xsoWriteReadOnlyProperties
  - OXmlRTTISerialize: fix TDate/TTime/TDateTime serialization
  - OXmlUtils: add TryStrToDate for Delphi 5
  - OXmlUtils: add ISO*Int64 functions.
  - OHashedStrings: add TOHashedIntegerList, TOHashedExtendedList
  - OHashedStrings: TOHashedStringObjDictionary: implement AddPObject
  - OXmlPDOM, OXmlCDOM: add attribute/child enumerators.
  - OXmlCSeq, OXmlPSeq, OXmlReadWrite: add property Eof.
  - OHashedStrings: fix performance bottleneck in clearing nodes (shows in sequential parser).


Version 1.10 2016-04-06 [SVN commit: 126, https://sourceforge.net/p/oxml/code/126/]
  - Implement extensive namespace support for DOM reading.
  - Check length of string/buffer before calling SetLength (small performance gain).
  - Fix TOHashedStringObjDictionary.Delete, delete also fObjects item.
  - Add TCustomXMLWriterSettings.EscapeQuotes to force escaping single and double quotes. Patch from Luis Moreno
  - Add TXMLNode.SelectNodesNS
  - Fix memory leak in OXmlSAX when reading an empty document.
  - Updated demos, added Delphi 5 demo and added information about why OXmlDOMVendor isn't supported on Delphi 5.


Version 1.9 2015-12-07 [SVN commit: 112, https://sourceforge.net/p/oxml/code/112/]
  ! Breaking change: TXMLNode.GetElementsByTagName (OXmlPDOM.pas and OXmlCDOM.pas) now uses recoursive search by default to comply with XML standards.
  ! Breaking change: Fixed bug in TXMLSerializer and TXMLDeserializer: UseRoot is True now by default !
  - Added OTrim in OWideSupp.pas.
  - Fixed missing Math unit under non-Win FPC.
  - Fixed bug in OXmlDOMVendor.pas: TOXmlDOMElement.getElementsByTagName and TOXmlDOMDocument.getElementsByTagName
  - OXmlSAX.pas: added support for an external class handler that can be nestable.
  - JSON code reworked: deleted JSON.pas, added OJsonUtils.pas, OJsonReadWrite.pas and OJsonUtf8ReadWrite.pas
  - Added OnProgress event handlers to OXmlCDOM.pas and OXmlPDOM.pas
  - Lazarus 1.2/FPC 2.x compatibility issues solved
  - OXmlRTTISerialize.pas: splitted TCustomXMLRTTISerDes.Visibility into ObjectVisibility and RecordVisibility.
  - OXmlSerialize.pas: added support for TStrings.
  - Added TXMLNode.NodePath property (OXmlCDOM.pas, OXmlPDOM.pas).
  - Added TXMLDeserializer.ErrorHandling property (OXmlSerialize.pas).
  - Added TXMLRTTIDeserializer.ErrorHandling property (OXmlRTTISerialize.pas).
  - Added TXMLDeserializeErrorHandling.dehIgnore
  - OXmlSerialize: added support for SerDes of TCollection and TStrings when used as root object.
  - OXmlCDOM: added TXMLNode.NodePath property
  - Fixed xml and xmlns namespaces. They cannot be defined in an XML document.
  - With this change, OXml should be able to be used as vendor for SOAP in Delphi.
  - Fixed setting the xmlns attribute with SetAttributeNS.
  - Added TSAXParser.WhiteSpaceHandling
  - Fixed Delphi 2005 compilation


Version 1.8 2015-05-28 [SVN commit: 86, https://sourceforge.net/p/oxml/code/86/]
  - Added OXmlCSeq.pas (sequential parser based on OXmlCDOM).
  ! File OXmlSeq.pas renamed to OXmlPSeq.pas to have te same format with OXmlPDOM.
  - Added TXMLNode.CloneNode with an IXMLDocument overloaded parameter.
  - ISOFloatToStr for Delphi 6 fixed.
  - Fixed bug in TSAXParser.OnXMLDeclaration.
  - Delphi XE7 packages recreated.
  - Delphi XE8 packages recreated.


Version 1.7 2015-04-28 [SVN commit: 76, https://sourceforge.net/p/oxml/code/76/]
  - Compatibility with XE8.
  - Fixed FileList demo.
  - Completely rewritten TOVirtualHashIndex -> it's called TOVirtualHashedStrings now
    and it has the same properties as TOHashedStrings.
  - TOHashedStrings with object dictionary split into TOHashedStringObjDictionary. You can now use Pointer dictionary on ARC as well.
  - Fixed various bugs on NextGEN/ARC (OJSON.pas, OTextReadWrite.pas, OXmlCDOM.pas, OXmlPDOM.pas, OXmlReadWrite.pas, OXmlRTTISerialize.pas).
  - Unit tests now sucessfully run on all supported Delphi versions, including non-unicode, unicode, ARC and FPC/Lazarus.
  - Added more properties to TOBufferedWriteStream.
  - Added TOHashedStrings.OwnsObjects
  - Added a setter to TXMLNode.NodeName and TXMLNode.NodeNameId (OXmlPDOM, OXmlCDOM).
  - Added TSAXParser.OnXMLDeclaration
  - Fixed bug in WideStringReplace
  - Fixed demos
  - C++ Builder compatibility.
  - TOTextBuffer inserted back.
  - Delphi packages changed with use of LIBSUFFIX. OXml.dpk is a runtime package, OXml_Designtime.dpk is a design-time package.


Version 1.6 2015-03-25 [SVN commit: 64, https://sourceforge.net/p/oxml/code/64/]
  - Added JSON reader/writer (beta).
  - Compatibility with FPC trunk (3.1.1).
  - Generics disabled in Delphi 2009 due to Delphi bugs.


Version 1.5 2015-01-07 [SVN commit: 60, https://sourceforge.net/p/oxml/code/60/]
  - TEncoding.GetSupportedEncodings modified to a function.
  - Fixed bug in TEncoding in Delphi 2009 and 2010.
  - Some Delphi 5 issues solved.


Version 1.4 2014-12-10 [SVN commit: 58, https://sourceforge.net/p/oxml/code/58/]
  - Fixed bug in TOWideStringList (only Delphi 5-2007).
  - OEncoding.pas: added support for Big Endian UTF-16.
  - OEncoding.pas: added support for UTF-7 (only Delphi 2009+ or Windows platform).
  - OXmlSerialize.pas: added support for TCollection.
  - OXmlRTTISerialize.pas: added support for TCollection.
  - Small bug in TXMLWriterElement fixed.


Version 1.3 2014-12-04 [SVN commit: 57, https://sourceforge.net/p/oxml/code/57/]
  - Case-insensitive TOHashedStrings.
  - Fixed bug when reading file with last #10 character.
  - Fixed bug when reading � entity (this invalid entity can be read only with StrictXML = False).


Version 1.2 2014-11-20 [SVN commit: 56, https://sourceforge.net/p/oxml/code/56/]
  - SelectNodeCreate can handle a whole path now. E.g. "element1/element2/@attribute".
  - Added the aToDocument parameter to TXMLNode.CloneNode.
  - Default line break handling of the writer changed!
    Now WriterSettings.LineBreak is lbLF to comply with XML standards.
    The functions SaveToXML use always the system line breaks.
  - Fixed bug in ISOTryStrToBool.
  - TXMLNode.AbsolutePath and TXMLNode.NodeLevel properties added.
  - Resolved bugs in Delphi 2009-XE.
  - Faster ISOStrToFloat and ISOFloatToStr functions, they are still thread-safe.
  - FPC writer optimalizations.
  - ORealWideString renamed to OUnicodeString
  - Characters that are not in the target encoding are written as XML entities to the file. Works only for text nodes, cdata and attribute values.
  - Fixed bug in OXmlSerialize.pas
  - Removed UseIndex property from TXMLDeserializer and TXMLRTTIDeserializer (not used any more).
  - Added XML declaration and encoding support to TXMLSerializer and TXMLRTTISerializer.
  - Added TXMLNode.SortChildNodes, SortAttributeNodes, SortChildNodesByName, SortAttributeNodesByName
  - Added TXMLSerializer.UseRoot and TXMLDeserializer.UseRoot + more options/attributes in WriteObject and ReadObject (ReadObjectFromNode)
  - Added TXMLRTTISerializer.UseRoot and TXMLRTTISerializer.UseRoot + more options/attributes in WriteObject and ReadObject (ReadObjectFromNode)
  - Fixed bug in TXMLReader.NodePathAsString
  - RTTI serializer - added TObject in records support.
  - RTTI serializer generic record support.
  - OXmlPDOM and OXmlCDOM - added TXMLNode.FindChildWithIndex* functions for fast searching within ChildNodes.
  - Added TSerializableObjectDictionary.
  - Added TSerializableDictionary.


Version 1.1 2014-09-24 [SVN commit: 33, https://sourceforge.net/p/oxml/code/33/]
  - Added OXmlSerialize.pas and OXmlRTTISerialize.pas - XML serializers
  - Added Delphi XE7 packages
    ! because some of the OXml backend files are now part of the Delphi RTL
      and they have the same filenames, you cannot install the design-time
      package in XE7 any more. I am solving this issue with Embarcadero now.