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OmniXML.pas
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OmniXML.pas
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(*******************************************************************************
* 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 OmniXML.pas *
* *
* The Initial Developer of the Original Code is Miha Remec *
* http://www.MihaRemec.com/ *
* *
* Contributor(s): *
* Primoz Gabrijelcic (gp) *
* Erik Berry (eb) *
* Ondrej Pokorny (op) *
*******************************************************************************)
unit OmniXML;
interface
{$I OmniXML.inc}
{$IFDEF OmniXML_HasZeroBasedStrings}
{$ZEROBASEDSTRINGS OFF}
{$ENDIF}
uses
{$IFDEF OmniXML_Namespaces}
System.Classes, System.SysUtils,
{$ELSE}
Classes, SysUtils,
{$ENDIF}
OEncoding, OTextReadWrite, OmniXML_Types, OmniXML_Dictionary
{$IFDEF OmniXML_Generics}, Generics.Collections{$ENDIF}
;
const
DEFAULT_DECIMALSEPARATOR = '.'; // don't change!
DEFAULT_TRUE = '1'; // don't change!
DEFAULT_FALSE = '0'; // don't change!
DEFAULT_DATETIMESEPARATOR = 'T'; // don't change!
DEFAULT_DATESEPARATOR = '-'; // don't change!
DEFAULT_TIMESEPARATOR = ':'; // don't change!
DEFAULT_MSSEPARATOR = '.'; // don't change!
const
// element node
ELEMENT_NODE = 1;
// attribute node
ATTRIBUTE_NODE = 2;
// text node
TEXT_NODE = 3;
// CDATA section node
CDATA_SECTION_NODE = 4;
// entity reference node
ENTITY_REFERENCE_NODE = 5;
// entity node
ENTITY_NODE = 6;
// processing instruction node
PROCESSING_INSTRUCTION_NODE = 7;
// comment node
COMMENT_NODE = 8;
// document node
DOCUMENT_NODE = 9;
// document type node
DOCUMENT_TYPE_NODE = 10;
// document fragment node
DOCUMENT_FRAGMENT_NODE = 11;
// notation node
NOTATION_NODE = 12;
type
TNodeType = 1..12;
const
// these codes are part of Exception codes
// W3C DOM Level 1
// index or size is negative, or greater than the allowed value
INDEX_SIZE_ERR = 1;
// the specified range of text does not fit into a DOMString
DOMSTRING_SIZE_ERR = 2;
// any node is inserted somewhere it doesn't belong
HIERARCHY_REQUEST_ERR = 3;
// a node is used in a different document than the one that created it (that doesn't support it)
WRONG_DOCUMENT_ERR = 4;
// an invalid character is specified, such as in a name
INVALID_CHARACTER_ERR = 5;
// data is specified for a node which does not support data
NO_DATA_ALLOWED_ERR = 6;
// an attempt is made to modify an object where modifications are not allowed
NO_MODIFICATION_ALLOWED_ERR = 7;
// an attempt was made to reference a node in a context where it does not exist
NOT_FOUND_ERR = 8;
// the implementation does not support the type of object requested
NOT_SUPPORTED_ERR = 9;
// an attempt is made to add an attribute that is already in use elsewhere
INUSE_ATTRIBUTE_ERR = 10;
// W3C DOM Level 2
// an attempt is made to use an object that is not, or is no longer, usable
INVALID_STATE_ERR = 11;
// an invalid or illegal string is specified
SYNTAX_ERR = 12;
// an attempt is made to modify the type of the underlying object
INVALID_MODIFICATION_ERR = 13;
// an attempt is made to create or change an object in a way which is incorrect with regard to namespaces
NAMESPACE_ERR = 14;
// parameter or an operation is not supported by the underlying object
INVALID_ACCESS_ERR = 15;
const
MSG_E_NOTEXT = $0000;
MSG_E_BASE = $0001;
MSG_E_FORMATINDEX_BADINDEX = MSG_E_BASE + 0;
MSG_E_FORMATINDEX_BADFORMAT = MSG_E_BASE + 1;
MSG_E_SYSTEM_ERROR = MSG_E_BASE + 2;
MSG_E_MISSINGEQUALS = MSG_E_BASE + 3;
MSG_E_EXPECTED_TOKEN = MSG_E_BASE + 4;
MSG_E_UNEXPECTED_TOKEN = MSG_E_BASE + 5;
MSG_E_MISSINGQUOTE = MSG_E_BASE + 6;
MSG_E_COMMENTSYNTAX = MSG_E_BASE + 7;
MSG_E_BADSTARTNAMECHAR = MSG_E_BASE + 8;
MSG_E_BADNAMECHAR = MSG_E_BASE + 9;
MSG_E_BADCHARINSTRING = MSG_E_BASE + 10;
MSG_E_XMLDECLSYNTAX = MSG_E_BASE + 11;
MSG_E_BADCHARDATA = MSG_E_BASE + 12;
MSG_E_MISSINGWHITESPACE = MSG_E_BASE + 13;
MSG_E_EXPECTINGTAGEND = MSG_E_BASE + 14;
MSG_E_BADCHARINDTD = MSG_E_BASE + 15;
MSG_E_BADCHARINDECL = MSG_E_BASE + 16;
MSG_E_MISSINGSEMICOLON = MSG_E_BASE + 17;
MSG_E_BADCHARINENTREF = MSG_E_BASE + 18;
MSG_E_UNBALANCEDPAREN = MSG_E_BASE + 19;
MSG_E_EXPECTINGOPENBRACKET = MSG_E_BASE + 20;
MSG_E_BADENDCONDSECT = MSG_E_BASE + 21;
MSG_E_INTERNALERROR = MSG_E_BASE + 22;
MSG_E_UNEXPECTED_WHITESPACE = MSG_E_BASE + 23;
MSG_E_INCOMPLETE_ENCODING = MSG_E_BASE + 24;
MSG_E_BADCHARINMIXEDMODEL = MSG_E_BASE + 25;
MSG_E_MISSING_STAR = MSG_E_BASE + 26;
MSG_E_BADCHARINMODEL = MSG_E_BASE + 27;
MSG_E_MISSING_PAREN = MSG_E_BASE + 28;
MSG_E_BADCHARINENUMERATION = MSG_E_BASE + 29;
MSG_E_PIDECLSYNTAX = MSG_E_BASE + 30;
MSG_E_EXPECTINGCLOSEQUOTE = MSG_E_BASE + 31;
MSG_E_MULTIPLE_COLONS = MSG_E_BASE + 32;
MSG_E_INVALID_DECIMAL = MSG_E_BASE + 33;
MSG_E_INVALID_HEXADECIMAL = MSG_E_BASE + 34;
MSG_E_INVALID_UNICODE = MSG_E_BASE + 35;
MSG_E_WHITESPACEORQUESTIONMARK = MSG_E_BASE + 36;
MSG_E_SUSPENDED = MSG_E_BASE + 37;
MSG_E_STOPPED = MSG_E_BASE + 38;
MSG_E_UNEXPECTEDENDTAG = MSG_E_BASE + 39;
MSG_E_UNCLOSEDTAG = MSG_E_BASE + 40;
MSG_E_DUPLICATEATTRIBUTE = MSG_E_BASE + 41;
MSG_E_MULTIPLEROOTS = MSG_E_BASE + 42;
MSG_E_INVALIDATROOTLEVEL = MSG_E_BASE + 43;
MSG_E_BADXMLDECL = MSG_E_BASE + 44;
MSG_E_MISSINGROOT = MSG_E_BASE + 45;
MSG_E_UNEXPECTEDEOF = MSG_E_BASE + 46;
MSG_E_BADPEREFINSUBSET = MSG_E_BASE + 47;
MSG_E_PE_NESTING = MSG_E_BASE + 48;
MSG_E_INVALID_CDATACLOSINGTAG = MSG_E_BASE + 49;
MSG_E_UNCLOSEDPI = MSG_E_BASE + 50;
MSG_E_UNCLOSEDSTARTTAG = MSG_E_BASE + 51;
MSG_E_UNCLOSEDENDTAG = MSG_E_BASE + 52;
MSG_E_UNCLOSEDSTRING = MSG_E_BASE + 53;
MSG_E_UNCLOSEDCOMMENT = MSG_E_BASE + 54;
MSG_E_UNCLOSEDDECL = MSG_E_BASE + 55;
MSG_E_UNCLOSEDMARKUPDECL = MSG_E_BASE + 56;
MSG_E_UNCLOSEDCDATA = MSG_E_BASE + 57;
MSG_E_BADDECLNAME = MSG_E_BASE + 58;
MSG_E_BADEXTERNALID = MSG_E_BASE + 59;
MSG_E_BADELEMENTINDTD = MSG_E_BASE + 60;
MSG_E_RESERVEDNAMESPACE = MSG_E_BASE + 61;
MSG_E_EXPECTING_VERSION = MSG_E_BASE + 62;
MSG_E_EXPECTING_ENCODING = MSG_E_BASE + 63;
MSG_E_EXPECTING_NAME = MSG_E_BASE + 64;
MSG_E_UNEXPECTED_ATTRIBUTE = MSG_E_BASE + 65;
MSG_E_ENDTAGMISMATCH = MSG_E_BASE + 66;
MSG_E_INVALIDENCODING = MSG_E_BASE + 67;
MSG_E_INVALIDSWITCH = MSG_E_BASE + 68;
MSG_E_EXPECTING_NDATA = MSG_E_BASE + 69;
MSG_E_INVALID_MODEL = MSG_E_BASE + 70;
MSG_E_INVALID_TYPE = MSG_E_BASE + 71;
MSG_E_INVALIDXMLSPACE = MSG_E_BASE + 72;
MSG_E_MULTI_ATTR_VALUE = MSG_E_BASE + 73;
MSG_E_INVALID_PRESENCE = MSG_E_BASE + 74;
MSG_E_BADXMLCASE = MSG_E_BASE + 75;
MSG_E_CONDSECTINSUBSET = MSG_E_BASE + 76;
MSG_E_CDATAINVALID = MSG_E_BASE + 77;
MSG_E_INVALID_STANDALONE = MSG_E_BASE + 78;
MSG_E_UNEXPECTED_STANDALONE = MSG_E_BASE + 79;
MSG_E_DOCTYPE_IN_DTD = MSG_E_BASE + 80;
MSG_E_MISSING_ENTITY = MSG_E_BASE + 81;
MSG_E_ENTITYREF_INNAME = MSG_E_BASE + 82;
MSG_E_DOCTYPE_OUTSIDE_PROLOG = MSG_E_BASE + 83;
MSG_E_INVALID_VERSION = MSG_E_BASE + 84;
MSG_E_DTDELEMENT_OUTSIDE_DTD = MSG_E_BASE + 85;
MSG_E_DUPLICATEDOCTYPE = MSG_E_BASE + 86;
MSG_E_RESOURCE = MSG_E_BASE + 87;
MSG_E_INVALID_OPERATION = MSG_E_BASE + 88;
MSG_E_WRONG_DOCUMENT = MSG_E_BASE + 89;
XML_BASE = MSG_E_BASE + 90;
XML_IOERROR = XML_BASE + 0;
XML_ENTITY_UNDEFINED = XML_BASE + 1;
XML_INFINITE_ENTITY_LOOP = XML_BASE + 2;
XML_NDATA_INVALID_PE = XML_BASE + 3;
XML_REQUIRED_NDATA = XML_BASE + 4;
XML_NDATA_INVALID_REF = XML_BASE + 5;
XML_EXTENT_IN_ATTR = XML_BASE + 6;
XML_STOPPED_BY_USER = XML_BASE + 7;
XML_PARSING_ENTITY = XML_BASE + 8;
XML_E_MISSING_PE_ENTITY = XML_BASE + 9;
XML_E_MIXEDCONTENT_DUP_NAME = XML_BASE + 10;
XML_NAME_COLON = XML_BASE + 11;
XML_ELEMENT_UNDECLARED = XML_BASE + 12;
XML_ELEMENT_ID_NOT_FOUND = XML_BASE + 13;
XML_DEFAULT_ATTRIBUTE = XML_BASE + 14;
XML_XMLNS_RESERVED = XML_BASE + 15;
XML_EMPTY_NOT_ALLOWED = XML_BASE + 16;
XML_ELEMENT_NOT_COMPLETE = XML_BASE + 17;
XML_ROOT_NAME_MISMATCH = XML_BASE + 18;
XML_INVALID_CONTENT = XML_BASE + 19;
XML_ATTRIBUTE_NOT_DEFINED = XML_BASE + 20;
XML_ATTRIBUTE_FIXED = XML_BASE + 21;
XML_ATTRIBUTE_VALUE = XML_BASE + 22;
XML_ILLEGAL_TEXT = XML_BASE + 23;
XML_MULTI_FIXED_VALUES = XML_BASE + 24;
XML_NOTATION_DEFINED = XML_BASE + 25;
XML_ELEMENT_DEFINED = XML_BASE + 26;
XML_ELEMENT_UNDEFINED = XML_BASE + 27;
XML_XMLNS_UNDEFINED = XML_BASE + 28;
XML_XMLNS_FIXED = XML_BASE + 29;
XML_E_UNKNOWNERROR = XML_BASE + 30;
XML_REQUIRED_ATTRIBUTE_MISSING = XML_BASE + 31;
XML_MISSING_NOTATION = XML_BASE + 32;
XML_ATTLIST_DUPLICATED_ID = XML_BASE + 33;
XML_ATTLIST_ID_PRESENCE = XML_BASE + 34;
XML_XMLLANG_INVALIDID = XML_BASE + 35;
XML_PUBLICID_INVALID = XML_BASE + 36;
XML_DTD_EXPECTING = XML_BASE + 37;
XML_NAMESPACE_URI_EMPTY = XML_BASE + 38;
XML_LOAD_EXTERNALENTITY = XML_BASE + 39;
XML_BAD_ENCODING = XML_BASE + 40;
type
EXMLException = class(Exception)
private
FDOMCode: Integer;
FXMLCode: Integer;
public
property DOMCode: Integer read FDOMCode;
property XMLCode: Integer read FXMLCode;
constructor CreateParseError(const DOMCode, XMLCode: Integer; const Args: array of const);
end;
{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
{ }
{ S T A R T O F I N T E R F A C E D E C L A R A T I O N }
{ }
{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
type
TOutputFormat = (ofNone, ofFlat, ofIndent);
IUnicodeStream = interface
['{F3ECA11F-EA18-491C-B59A-4203D5DC8CCA}']
// private
function GetEncoding: TEncoding;
procedure SetEncoding(const AEncoding: TEncoding);
function GetBOMFound: Boolean;
function GetOutputFormat: TOutputFormat;
procedure SetOutputFormat(const Value: TOutputFormat);
// public
procedure IncreaseIndent;
procedure DecreaseIndent;
procedure WriteIndent(const ForceNextLine: Boolean = False);
property OutputFormat: TOutputFormat read GetOutputFormat write SetOutputFormat;
property Encoding: TEncoding read GetEncoding write SetEncoding;
property BOMFound: Boolean read GetBOMFound;
procedure UndoRead;
function ProcessChar(var Char: XmlChar): Boolean;
function GetNextString(var ReadString: XmlString; const Len: Integer): Boolean;
procedure WriteOutputChar(const OutChar: XmlChar);
function GetOutputBuffer: XmlString;
function OutputBufferLen: Integer;
procedure ClearOutputBuffer;
procedure WriteString(const Value: XmlString);
end;
type
TStreamMode = (smRead, smWrite);
TXMLTextStream = class(TInterfacedObject, IUnicodeStream)
private
FStreamMode: TStreamMode;
FReader: TOTextReader;
FWriter: TOTextWriter;
FPreviousOutBuffer: XmlString;
FOutBuffer: PXmlChar;
FOutBufferPos,
FOutBufferSize: Integer;
FIndent: Integer;
FOutputFormat: TOutputFormat;
fBOMFound: Boolean;
function GetEncoding: TEncoding;
procedure SetEncoding(const AEncoding: TEncoding);
function GetBOMFound: Boolean;
function GetOutputFormat: TOutputFormat;
procedure SetOutputFormat(const Value: TOutputFormat);
protected
FStream: TStream;
FEOF: Boolean;
function ReadChar(var ReadChar: XmlChar): Boolean; virtual;
function ProcessChar(var ch: XmlChar): Boolean; virtual;
procedure IncreaseIndent;
procedure DecreaseIndent;
procedure WriteIndent(const ForceNextLine: Boolean = False);
// helper functions
function GetPreviousOutputBuffer: XmlString;
public
property OutputFormat: TOutputFormat read GetOutputFormat write SetOutputFormat;
property Encoding: TEncoding read GetEncoding write SetEncoding;
property BOMFound: Boolean read GetBOMFound;
constructor Create(const Stream: TStream; const Mode: TStreamMode; const Encoding: TEncoding; const WriteBOM: Boolean);
destructor Destroy; override;
procedure UndoRead; virtual;
function GetNextString(var ReadString: XmlString; const Len: Integer): Boolean;
procedure WriteOutputChar(const OutChar: XmlChar);
function GetOutputBuffer: XmlString;
function OutputBufferLen: Integer;
procedure ClearOutputBuffer;
procedure WriteString(const Value: XmlString);
end;
IXMLParseError = interface
['{546E9AE4-4E1E-4014-B0B8-4F024C797544}']
// private
function GetErrorCode: Integer;
function GetFilePos: Integer;
function GetLine: Integer;
function GetLinePos: Integer;
function GetSrcTextPos: Integer;
function GetReason: string;
function GetSrcText: XmlString;
function GetURL: string;
// public
property ErrorCode: Integer read GetErrorCode;
property FilePos: Integer read GetFilePos;
property Line: Integer read GetLine;//1-based
property LinePos: Integer read GetLinePos;//1-based
property Reason: string read GetReason;
property SrcText: XmlString read GetSrcText;
property SrcTextPos: Integer read GetSrcTextPos;//1-based, position of error in SrcText
property URL: string read GetURL;
end;
IXMLElement = interface;
IXMLDocument = interface;
IXMLNodeList = interface;
IXMLNamedNodeMap = interface;
IXMLNode = interface
['{F4D7D3DE-C6EC-4191-8E35-F652C2705E81}']
// private
function GetAttributes: IXMLNamedNodeMap;
function GetChildNodes: IXMLNodeList;
function GetFirstChild: IXMLNode;
function GetLastChild: IXMLNode;
function GetNextSibling: IXMLNode;
function GetNodeName: XmlString;
function GetNodeType: TNodeType;
function GetNodeValue: XmlString;
function GetOwnerDocument: IXMLDocument;
function GetParentNode: IXMLNode;
function GetPreviousSibling: IXMLNode;
procedure SetNodeValue(const Value: XmlString);
procedure SetParentNode(const Parent: IXMLNode);
// public
function InsertBefore(const NewChild, RefChild: IXMLNode): IXMLNode;
function ReplaceChild(const NewChild, OldChild: IXMLNode): IXMLNode;
function RemoveChild(const OldChild: IXMLNode): IXMLNode;
function AppendChild(const NewChild: IXMLNode): IXMLNode;
function HasChildNodes: Boolean;
function CloneNode(const Deep: Boolean): IXMLNode;
procedure SetCachedNodeIndex(const Index: integer);
property NodeName: XmlString read GetNodeName;
property NodeValue: XmlString read GetNodeValue write SetNodeValue;
property NodeType: TNodeType read GetNodeType;
property ParentNode: IXMLNode read GetParentNode;
property ChildNodes: IXMLNodeList read GetChildNodes;
property FirstChild: IXMLNode read GetFirstChild;
property LastChild: IXMLNode read GetLastChild;
property PreviousSibling: IXMLNode read GetPreviousSibling;
property NextSibling: IXMLNode read GetNextSibling;
property Attributes: IXMLNamedNodeMap read GetAttributes;
property OwnerDocument: IXMLDocument read GetOwnerDocument;
// MS (non-standard) extensions
function GetText: XmlString;
procedure SetText(const Value: XmlString);
property Text: XmlString read GetText write SetText;
procedure WriteToStream(const OutputStream: IUnicodeStream);
procedure SelectSingleNode(Pattern: string; var Result: IXMLNode); overload;
function SelectSingleNode(Pattern: string): IXMLNode; overload;
procedure SelectNodes(Pattern: string; var Result: IXMLNodeList); overload;
function SelectNodes(Pattern: string): IXMLNodeList; overload;
function GetXML: XmlString;
property XML: XmlString read GetXML;
end;
IXMLCustomList = interface
['{6520A0BC-8738-4E40-8CDB-33713DED32ED}']
// protected
function GetLength: Integer;
function GetItem(const Index: Integer): IXMLNode;
procedure MakeChildrenCacheSiblings(const Value: boolean);
// public
property Item[const Index: Integer]: IXMLNode read GetItem;
property Length: Integer read GetLength;
function Add(const XMLNode: IXMLNode): Integer;
function IndexOf(const XMLNode: IXMLNode): Integer;
procedure Insert(const Index: Integer; const XMLNode: IXMLNode);
function Remove(const XMLNode: IXMLNode): Integer;
procedure Delete(const Index: Integer);
procedure Clear;
end;
IXMLNodeList = interface(IXMLCustomList)
['{66AF674E-4697-4356-ACCC-4258DA138EA1}']
// public
function AddNode(const Arg: IXMLNode): IXMLNode;
// MS (non-standard) extensions
procedure Reset;
function NextNode: IXMLNode;
end;
IXMLNamedNodeMap = interface(IXMLCustomList)
['{87964B1D-F6CC-46D2-A602-67E198C8BFF5}']
// public
function GetNamedItem(const Name: XmlString): IXMLNode;
function SetNamedItem(const Arg: IXMLNode): IXMLNode;
function RemoveNamedItem(const Name: XmlString): IXMLNode;
end;
{ TODO -omr : re-add after IXMLDocumentType will be properly supported }
(*
IXMLDocumentType = interface(IXMLNode)
['{881517D3-A2F5-4AF0-8A3D-5A57D2C77ED9}']
// private
function GetEntities: IXMLNamedNodeMap;
function GetName: XmlString;
function GetNotations: IXMLNamedNodeMap;
// public
property Name: XmlString read GetName;
property Entities: IXMLNamedNodeMap read GetEntities;
property Notations: IXMLNamedNodeMap read GetNotations;
end;
*)
IXMLDocumentFragment = interface(IXMLNode)
['{A21A11BF-E489-4416-9607-172EFA2CFE45}']
end;
IXMLCharacterData = interface(IXMLNode)
['{613A6538-A0DC-49BC-AFA6-D8E611176B86}']
// private
function GetData: XmlString;
function GetLength: Integer;
procedure SetData(const Value: XmlString);
// public
property Data: XmlString read GetData write SetData;
property Length: Integer read GetLength;
function SubstringData(const Offset, Count: Integer): XmlString;
procedure AppendData(const Arg: XmlString);
procedure InsertData(const Offset: Integer; const Arg: XmlString);
procedure DeleteData(const Offset, Count: Integer);
procedure ReplaceData(const Offset, Count: Integer; const Arg: XmlString);
end;
IXMLText = interface(IXMLCharacterData)
['{0EC46ED2-AB58-4DC9-B964-965615248564}']
// public
function SplitText(const Offset: Integer): IXMLText;
end;
IXMLComment = interface(IXMLCharacterData)
['{B094A54C-039F-4ED7-9331-F7CF5A711EDA}']
end;
IXMLCDATASection = interface(IXMLText)
['{CF58778D-775D-4299-884C-F1DC61925D54}']
end;
IXMLDocumentType = interface(IXMLText)
['{E956F945-E8F6-4589-BF8D-D4DC23DE1089}']
end;
IXMLProcessingInstruction = interface(IXMLNode)
['{AF449E32-2615-4EF7-82B6-B2E9DCCE9FC3}']
// private
function GetData: XmlString;
function GetTarget: XmlString;
// public
property Target: XmlString read GetTarget;
property Data: XmlString read GetData;
end;
IXMLAttr = interface(IXMLNode)
['{10796B8E-FBAC-4ADF-BDD8-E4BBC5A5196F}']
// private
function GetName: XmlString;
function GetSpecified: Boolean;
function GetValue: XmlString;
procedure SetValue(const Value: XmlString);
// public
property Name: XmlString read GetName;
property Specified: Boolean read GetSpecified;
property Value: XmlString read GetValue write SetValue;
end;
IXMLEntityReference = interface(IXMLNode)
['{4EC18B2B-BD52-464D-BAD1-1FBE2C445989}']
end;
IXMLDocument = interface(IXMLNode)
['{59A76970-451C-4343-947C-242EFF17413C}']
// private
function GetDocType: IXMLDocumentType;
{ TODO -omr : re-add after IXMLDocumentType will be properly supported }
// procedure SetDocType(const Value: IXMLDocumentType);
function GetDocumentElement: IXMLElement;
procedure SetDocumentElement(const Value: IXMLElement);
function GetPreserveWhiteSpace: Boolean;
procedure SetPreserveWhiteSpace(const Value: Boolean);
// public
property DocType: IXMLDocumentType read GetDocType;
property DocumentElement: IXMLElement read GetDocumentElement write SetDocumentElement;
property PreserveWhiteSpace: Boolean read GetPreserveWhiteSpace write SetPreserveWhiteSpace;
function CreateAttribute(const Name: XmlString): IXMLAttr;
function CreateCDATASection(const Data: XmlString): IXMLCDATASection;
function CreateComment(const Data: XmlString): IXMLComment;
function CreateDocType(const Data: XmlString): IXMLDocumentType;
function CreateDocumentFragment: IXMLDocumentFragment;
function CreateElement(const TagName: XmlString): IXMLElement;
function CreateEntityReference(const Name: XmlString): IXMLEntityReference;
function CreateProcessingInstruction(const Target, Data: XmlString): IXMLProcessingInstruction;
function CreateTextNode(const Data: XmlString): IXMLText;
function GetElementsByTagName(const TagName: XmlString): IXMLNodeList;
// MS (non-standard) extensions
function Load(const FileName: string): Boolean;
function LoadFromStream(const Stream: TStream): Boolean;
procedure Save(const FileName: string; const OutputFormat: TOutputFormat = ofNone);
procedure SaveToStream(const OutputStream: TStream; const OutputFormat: TOutputFormat = ofNone);
function LoadXML(const XML: XmlString): Boolean;
function GetParseError: IXMLParseError;
property ParseError: IXMLParseError read GetParseError;
end;
IXMLElement = interface(IXMLNode)
['{C858C4E1-FB3F-4C98-8BDE-671E060D17B9}']
// private
function GetTagName: XmlString;
// public
property TagName: XmlString read GetTagName;
function GetAttribute(const Name: XmlString): XmlString;
procedure SetAttribute(const Name, Value: XmlString);
procedure RemoveAttribute(const Name: XmlString);
function GetAttributeNode(const Name: XmlString): IXMLAttr;
function SetAttributeNode(const NewAttr: IXMLAttr): IXMLAttr;
function RemoveAttributeNode(const OldAttr: IXMLAttr): IXMLAttr;
function GetElementsByTagName(const Name: XmlString): IXMLNodeList;
procedure Normalize;
end;
{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
{ }
{ E N D O F I N T E R F A C E D E C L A R A T I O N }
{ }
{ }
{ S T A R T O F I N T E R F A C E I M P L E M E N T A T I O N }
{ }
{ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * }
type
TXMLParseError = class(TInterfacedObject, IXMLParseError)
private
FErrorCode: Integer;
FFilePos: Integer;
FLine: Integer;
FLinePos: Integer;
FReason: string;
FSrcText: XmlString;
FSrcTextPos: Integer;
FURL: string;
function GetErrorCode: Integer;
function GetFilePos: Integer;
function GetLine: Integer;
function GetLinePos: Integer;
function GetSrcTextPos: Integer;
function GetReason: string;
function GetSrcText: XmlString;
function GetURL: string;
protected
procedure SetErrorCode(const ErrorCode: Integer);
procedure SetFilePos(const FilePos: Integer);
procedure SetLine(const Line: Integer);
procedure SetLinePos(const LinePos: Integer);
procedure SetReason(const Reason: string);
procedure SetSrcText(const SrcTextBefore, SrcTextAfter: XmlString);
procedure SetURL(const URL: string);
public
property ErrorCode: Integer read GetErrorCode;
property FilePos: Integer read GetFilePos;
property Line: Integer read GetLine;
property LinePos: Integer read GetLinePos;
property Reason: string read GetReason;
property SrcText: XmlString read GetSrcText;
property SrcTextPos: Integer read GetSrcTextPos;
property URL: string read GetURL;
end;
TXMLNodeList = class;
TXMLNamedNodeMap = class;
TXMLDocument = class;
TXMLAttr = class;
TXMLElement = class;
TXMLText = class;
TXMLComment = class;
TXMLCDATASection = class;
TXMLProcessingInstruction = class;
TXMLNode = class(TInterfacedObject, IXMLNode)
protected
{$IFDEF AUTOREFCOUNT} [weak] {$ENDIF} FOwnerDocument: TXMLDocument;
FNodeType: TNodeType;
FAttributes: IXMLNamedNodeMap;
FChildNodes: IXMLNodeList;
FParentNode: IXMLNode;
FNodeValueId: TDicId;
FCachedNodeIndex: integer; // < 0 if non-cached hence unknown
procedure ClearChildNodes;
function HasAttributes: Boolean;
function GetAttributes: IXMLNamedNodeMap;
function GetChildNodes: IXMLNodeList;
function GetFirstChild: IXMLNode;
function GetLastChild: IXMLNode;
function GetNextSibling: IXMLNode;
function GetNodeName: XmlString; virtual; abstract;
function GetNodeType: TNodeType;
function GetNodeValue: XmlString; virtual;
function GetOwnerDocument: IXMLDocument; virtual;
function GetParentNode: IXMLNode;
function GetPreviousSibling: IXMLNode;
procedure SetNodeValue(const Value: XmlString); virtual;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); virtual;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); virtual;
procedure SetParentNode(const Parent: IXMLNode);
function GetText: XmlString; virtual;
procedure SetText(const Value: XmlString); virtual;
function GetXML: XmlString;
procedure SelectNodes(Pattern: string; var Result: IXMLNodeList); overload; virtual;
procedure SelectSingleNode(Pattern: string; var Result: IXMLNode); overload; virtual;
procedure SetCachedNodeIndex(const Index: integer);
public
Dictionary: TDictionary;
property NodeName: XmlString read GetNodeName;
property NodeValue: XmlString read GetNodeValue write SetNodeValue;
property NodeType: TNodeType read GetNodeType;
property ParentNode: IXMLNode read GetParentNode;
property ChildNodes: IXMLNodeList read GetChildNodes;
property FirstChild: IXMLNode read GetFirstChild;
property LastChild: IXMLNode read GetLastChild;
property PreviousSibling: IXMLNode read GetPreviousSibling;
property NextSibling: IXMLNode read GetNextSibling;
property Attributes: IXMLNamedNodeMap read GetAttributes;
property OwnerDocument: IXMLDocument read GetOwnerDocument;
property Text: XmlString read GetText write SetText;
constructor Create(const AOwnerDocument: TXMLDocument);
destructor Destroy; override;
function InsertBefore(const NewChild, RefChild: IXMLNode): IXMLNode;
function ReplaceChild(const NewChild, OldChild: IXMLNode): IXMLNode;
function RemoveChild(const OldChild: IXMLNode): IXMLNode;
function AppendChild(const NewChild: IXMLNode): IXMLNode;
function HasChildNodes: Boolean;
function CloneNode(const Deep: Boolean): IXMLNode; virtual;
procedure WriteToStream(const OutputStream: IUnicodeStream);
function SelectNodes(Pattern: string): IXMLNodeList; overload; virtual;
function SelectSingleNode(Pattern: string): IXMLNode; overload; virtual;
property XML: XmlString read GetXML;
end;
{ TODO -omr : re-add after IXMLDocumentType will be properly supported }
(*
TXMLDocumentType = class(TXMLNode, IXMLNode)
private
function GetEntities: IXMLNamedNodeMap;
function GetName: XmlString;
function GetNotations: IXMLNamedNodeMap;
public
property Name: XmlString read GetName;
property Entities: IXMLNamedNodeMap read GetEntities;
property Notations: IXMLNamedNodeMap read GetNotations;
end;
*)
TXMLEntityReference = class(TXMLNode, IXMLEntityReference);
TXMLDocumentFragment = class(TXMLNode, IXMLDocumentFragment)
protected
function GetNodeName: XmlString; override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
constructor Create(const OwnerDocument: TXMLDocument);
end;
TXMLCustomList = class(TInterfacedObject, IXMLCustomList)
private
{$IFDEF OmniXML_Generics}
FList: TList<IXMLNode>;
{$ELSE}
FList: TList;
{$ENDIF}
FChildrenCachedSiblings: boolean;
protected
function GetLength: Integer;
function GetItem(const Index: Integer): IXMLNode;
procedure Put(Index: Integer; Item: IXMLNode);
procedure MakeChildrenCacheSiblings(const Value: boolean);
public
constructor Create;
destructor Destroy; override;
property Item[const Index: Integer]: IXMLNode read GetItem; default;
property Length: Integer read GetLength;
function Add(const XMLNode: IXMLNode): Integer;
function IndexOf(const XMLNode: IXMLNode): Integer;
procedure Insert(const Index: Integer; const XMLNode: IXMLNode);
function Remove(const XMLNode: IXMLNode): Integer;
procedure Delete(const Index: Integer);
procedure Clear;
end;
TXMLNodeList = class(TXMLCustomList, IXMLNodeList)
protected
FItemNo: Integer;
public
procedure Reset;
function NextNode: IXMLNode;
function AddNode(const Arg: IXMLNode): IXMLNode;
end;
TXMLNamedNodeMap = class(TXMLCustomList, IXMLNamedNodeMap)
public
function GetNamedItem(const Name: XmlString): IXMLNode;
function SetNamedItem(const Arg: IXMLNode): IXMLNode;
function RemoveNamedItem(const Name: XmlString): IXMLNode;
end;
TXMLElement = class(TXMLNode, IXMLElement)
private
FTagNameId: TDicId;
protected
function GetNodeName: XmlString; override;
function GetTagName: XmlString;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
procedure SetTagName(const TagName: XmlString);
public
property TagName: XmlString read GetTagName;
constructor CreateElement(const OwnerDocument: TXMLDocument; const TagName: XmlString);
function GetAttribute(const Name: XmlString): XmlString;
procedure SetAttribute(const Name, Value: XmlString);
procedure RemoveAttribute(const Name: XmlString);
function GetAttributeNode(const Name: XmlString): IXMLAttr;
function SetAttributeNode(const NewAttr: IXMLAttr): IXMLAttr;
function RemoveAttributeNode(const OldAttr: IXMLAttr): IXMLAttr;
function GetElementsByTagName(const Name: XmlString): IXMLNodeList;
procedure Normalize;
// function CloneNode(const Deep: Boolean): IXMLNode; override;
end;
TXMLProcessingInstruction = class(TXMLNode, IXMLProcessingInstruction)
private
FTarget: XmlString;
FData: XmlString;
function GetData: XmlString;
function GetTarget: XmlString;
protected
function GetNodeName: XmlString; override;
procedure SetData(Data: XmlString); virtual;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
property Target: XmlString read GetTarget;
property Data: XmlString read GetData;
constructor CreateProcessingInstruction(const OwnerDocument: TXMLDocument; const Target, Data: XmlString);
end;
TXMLAttr = class(TXMLNode, IXMLAttr)
private
FNameId: TDicId;
FSpecified: Boolean;
function GetName: XmlString;
function GetSpecified: Boolean;
function GetValue: XmlString;
procedure SetValue(const Value: XmlString);
procedure SetName(const Value: XmlString);
protected
function GetNodeName: XmlString; override;
procedure SetNodeValue(const Value: XmlString); override;
function GetText: XmlString; override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
public
property Name: XmlString read GetName;
property Specified: Boolean read GetSpecified;
property Value: XmlString read GetValue write SetValue;
constructor CreateAttr(const OwnerDocument: TXMLDocument; const Name: XmlString);
end;
TXMLCharacterData = class(TXMLNode, IXMLCharacterData)
private
function GetData: XmlString;
function GetLength: Integer;
protected
FNodeValue: XmlString;
procedure SetData(const Value: XmlString); virtual;
function GetNodeValue: XmlString; override;
procedure SetNodeValue(const Value: XmlString); override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
property Data: XmlString read GetData write SetData;
property Length: Integer read GetLength;
constructor CreateCharacterData(const OwnerDocument: TXMLDocument; const Data: XmlString); virtual;
function SubstringData(const Offset, Count: Integer): XmlString;
procedure AppendData(const Arg: XmlString);
procedure InsertData(const Offset: Integer; const Arg: XmlString);
procedure DeleteData(const Offset, Count: Integer);
procedure ReplaceData(const Offset, Count: Integer; const Arg: XmlString);
end;
TXMLText = class(TXMLCharacterData, IXMLText)
protected
function GetNodeName: XmlString; override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
constructor Create(const OwnerDocument: TXMLDocument; const Data: XmlString); overload;
function SplitText(const Offset: Integer): IXMLText;
end;
TXMLComment = class(TXMLCharacterData, IXMLComment)
protected
function GetNodeName: XmlString; override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
constructor CreateComment(const OwnerDocument: TXMLDocument; const Data: XmlString); virtual;
end;
TXMLCDATASection = class(TXMLText, IXMLCDATASection)
private
procedure CheckValue(const Value: XmlString);
protected
function GetNodeName: XmlString; override;
procedure SetData(const Value: XmlString); override;
procedure SetNodeValue(const Value: XmlString); override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
constructor CreateCDATASection(const OwnerDocument: TXMLDocument; const Data: XmlString); virtual;
end;
TXMLDocumentType = class(TXMLText, IXMLDocumentType)
protected
function GetNodeName: XmlString; override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
public
constructor CreateDocumentType(const OwnerDocument: TXMLDocument; const Data: XmlString); virtual;
end;
TXMLAttrClass = class of TXMLAttr;
TXMLCDATASectionClass = class of TXMLCDATASection;
TXMLCommentClass = class of TXMLComment;
TXMLDocumentTypeClass = class of TXMLDocumentType;
TXMLElementClass = class of TXMLElement;
TXMLProcessingInstructionClass = class of TXMLProcessingInstruction;
TXMLTextClass = class of TXMLText;
TXMLDocument = class(TXMLNode, IXMLDocument)
private
FDocType: IXMLDocumentType;
FIParseError: IXMLParseError;
FParseError: TXMLParseError;
FPreserveWhiteSpace: Boolean;
FURL: string;
protected
function GetNodeName: XmlString; override;
function GetParseError: IXMLParseError;
function GetDocType: IXMLDocumentType;
{ TODO -omr : re-add after IXMLDocumentType will be properly supported }
// procedure SetDocType(const Value: IXMLDocumentType);
function GetDocumentElement: IXMLElement;
procedure SetDocumentElement(const Value: IXMLElement);
function GetPreserveWhiteSpace: Boolean;
procedure SetPreserveWhiteSpace(const Value: Boolean);
function GetText: XmlString; override;
function GetOwnerDocument: IXMLDocument; override;
protected
FXMLAttrClass: TXMLAttrClass;
FXMLCDATASectionClass: TXMLCDATASectionClass;
FXMLCommentClass: TXMLCommentClass;
FXMLDocTypeClass: TXMLDocumentTypeClass;
FXMLElementClass: TXMLElementClass;
FXMLProcessingInstructionClass: TXMLProcessingInstructionClass;
FXMLTextClass: TXMLTextClass;
// creating new childs
function InternalCreateAttribute(const Name: XmlString): TXMLAttr;
function InternalCreateCDATASection(const Data: XmlString): TXMLCDATASection;
function InternalCreateComment(const Data: XmlString): TXMLComment;
function InternalCreateDocType(const Data: XmlString): TXMLDocumentType;
function InternalCreateDocumentFragment: TXMLDocumentFragment;
function InternalCreateElement(const TagName: XmlString): TXMLElement;
function InternalCreateEntityReference(const Name: XmlString): TXMLEntityReference;
function InternalCreateProcessingInstruction(const Target, Data: XmlString): TXMLProcessingInstruction;
function InternalCreateTextNode(const Data: XmlString): TXMLText;
// reading / writing support
procedure ReadFromStream(const Parent: TXMLNode; const InputStream: IUnicodeStream); override;
procedure InternalWriteToStream(const OutputStream: IUnicodeStream); override;
public
UnclosedElementList: TInterfaceList;
property DocType: IXMLDocumentType read GetDocType;
property DocumentElement: IXMLElement read GetDocumentElement write SetDocumentElement;
property PreserveWhiteSpace: Boolean read GetPreserveWhiteSpace write SetPreserveWhiteSpace;
constructor Create; virtual;
destructor Destroy; override;
function CreateAttribute(const Name: XmlString): IXMLAttr;
function CreateCDATASection(const Data: XmlString): IXMLCDATASection;
function CreateComment(const Data: XmlString): IXMLComment;
function CreateDocType(const Data: XmlString): IXMLDocumentType;
function CreateDocumentFragment: IXMLDocumentFragment;
function CreateElement(const TagName: XmlString): IXMLElement;
function CreateEntityReference(const Name: XmlString): IXMLEntityReference;
function CreateProcessingInstruction(const Target, Data: XmlString): IXMLProcessingInstruction;
function CreateTextNode(const Data: XmlString): IXMLText;
function GetElementsByTagName(const TagName: XmlString): IXMLNodeList;
function Load(const FileName: string): Boolean; virtual;
function LoadFromStream(const Stream: TStream): Boolean;
procedure Save(const FileName: string; const OutputFormat: TOutputFormat = ofNone); virtual;
procedure SaveToStream(const OutputStream: TStream; const OutputFormat: TOutputFormat = ofNone);
function LoadXML(const XML: XmlString): Boolean; virtual;
property ParseError: IXMLParseError read GetParseError;
end;
// helper functions
function CreateXMLDoc: IXMLDocument;
// Unicode functions
function UniTrim(const Value: XmlString): XmlString;
// XML related helper functions
function CharIs_BaseChar(const ch: XmlChar): Boolean;
function CharIs_Ideographic(const ch: XmlChar): Boolean;
function CharIs_Letter(const ch: XmlChar): Boolean;
function CharIs_Extender(const ch: XmlChar): Boolean;
function CharIs_Digit(const ch: XmlChar): Boolean;
function CharIs_CombiningChar(const ch: XmlChar): Boolean;
function CharIs_WhiteSpace(const ch: XmlChar): Boolean;
function CharIs_Char(const ch: XmlChar): Boolean;
function CharIs_NameChar(const ch: XmlChar): Boolean;
function CharIs_Name(const ch: XmlChar; const IsFirstChar: Boolean): Boolean;
function EncodeText(const Value: XmlString): XmlString;
function ShrinkEol(const Value: XmlString): XmlString;
function ExpandEol(const Value: XmlString): XmlString;
implementation
uses
OmniXML_LookupTables, OmniXMLXPath;
const
MAX_OUTPUTBUFFERSIZE = 256; // initial output buffer size (it only stores one tag at once!)
OUTPUT_INDENT = 2;
type
TCharRef = record