Laz2_DOM unit

laz2_dom.pas provides an Implementation of DOM (Document Object Model) interfaces. It is a modified copy of the FCL dom.pp unit (revision 15251) adapted to use UTF-8 instead of WideString by Mattias Gaertner.

Copyright (c) 1999-2000 by Sebastian Guenther, sg@freepascal.org
Modified in 2006 by Sergei Gorelkin, sergei_gorelkin@mail.ru

This unit provides classes which implement the interfaces defined in the DOM (Document Object Model) specification. The current state is:

• DOM Levels 1 and 2 - Completely implemented
• DOM Level 3 - Partially implemented

Specification used for this implementation:
Document Object Model (DOM) Level 2 Specification

laz2_dom.pas is part of the lazutils package.

Classes and records

EDOMError	class	Base class for exceptions raised in DOM interface classes.
EDOMHierarchyRequest	class	Exception raised when an inserted node is not valid for the Document Object Model (DOM).
EDOMIndexSize	class	Exception raised for an invalid index size.
EDOMInUseAttribute	class	Exception raised when adding an attribute that is already in use.
EDOMInvalidAccess	class	Exception raised when a parameter or operation is not supported by the object.
EDOMInvalidModification	class	Exception raised when an attempt was made to modify the type for an object.
EDOMInvalidState	class	Exception raised when accessing an object that is no longer usable.
EDOMNamespace	class	Exception raised when an object is changed in a way that is invalid for its Namespaces.
EDOMNotFound	class	Exception raised when a node is accessed in a context where it does not exist.
EDOMNotSupported	class	Exception raised when the DOM implementation does not support the requested object type or operation.
EDOMSyntax	class	Exception raised when an invalid or illegal value is specified for a DOM object.
EDOMWrongDocument	class	Exception raised when a node is used in a document other than the one that created it.
TDOMAttr	class	Implements a DOM Node for attributes with Namespace support.
TDOMAttrDef	class	Implements the default attribute node introduced in DOM Level 2.
TDOMCDATASection	class	Implements the DOM CDataSection interface from the DOM specification.
TDOMCharacterData	class	Implements the CharacterData interface from the DOM specification.
TDOMComment	class	Implements the DOM Comment interface from the DOM specification.
TDOMDocument	class	Implements the DOM Document interface.
TDOMDocumentFragment	class	Implements the DocumentFragment interface from the DOM specification.
TDOMDocumentType	class	Implements the DOM DocumentType interface from the DOM specification.
TDOMElement	class	Implements the DOM Element interface from the DOM specification.
TDOMElementList	class	Provides a recursive list of DOM Elements.
TDOMEntity	class	Implements the DOM Entity interface from the DOM specification.
TDOMEntityReference	class	Implements the DOM EntityReference interface from the DOM specification.
TDOMImplementation	class	Implements the DOMImplementation interface from the DOM specification.
TDOMNamedNodeMap	class	Implements the NamedNodeMap interface in the DOM specification.
TDOMNode	class	Implements the DOM Node interface.
TDOMNode_NS	class	Implements a DOM Node with Namespace support.
TDOMNode_WithChildren	class	Extends TDOMNode to allocate storage for child nodes.
TDOMNodeAllChildEnumerator	class	Implements an enumerator that visits all Children in the sub-tree for a DOM node.
TDOMNodeEnumerator	class	Implements an enumerator for DOM Nodes.
TDOMNodeList	class	Implements an ordered list of DOM Nodes.
TDOMNotation	class	Implements the DOM Notation interface from the DOM specification.
TDOMProcessingInstruction	class	Implements the DOM ProcessingInstruction interface from the DOM specification.
TDOMText	class	Implements the DOM Text interface from the DOM specification.
TExtent	record	Record type with a pointer to its extent, followed by an array TDOMNode instances.
TNamespaceInfo	record	Represents Namespace Information used in DOM Node specializations.
TNodePool	class	Provides custom memory management when DOM Nodes are created.
TXMLDocument	class	Implements an XML Document.

Procedures and functions

EncodeLesserAndGreaterThan	function	Converts instance of the reserved characters.
StrToXMLValue	function	Converts a string to it representation as XML character data.
XMLValueToStr	function	Converts XML character data to its representation as a string value.

Types

DOMChar	type	Type used for Char values in DOM interfaces.
DOMPChar	type	Type used for Pointers to Char values in DOM interfaces.
DOMString	type	Type used for String values in DOM interfaces.
PDOMString	type	Type used for Pointers to DOMString values.
PExtent	type	Pointer to a TExtent type.
PNodePoolArray	type	Pointer to a TNodePoolArray instance.
TAttrDataType	enumeration	Enumeration with values for attribute types used in DOM Nodes.
TAttrDefault	enumeration	Enumerated type with methods for getting the attribute node value.
TDOMNodeClass	type	Class type used to create TDOMNode instances.
TFilterResult	enumeration	Determines the Node types included in a DOM node list.
TNamespaces	type	Type used for namespaces in a DOM Document.
TNodeFlagEnum	enumeration	Enumeration with flag values for DOM Nodes.
TNodeFlags	set	Set type used to store TNodeFlagEnum values.
TNodePoolArray	type	Specifies an array of TNodePool instances.

Constants

ATTRIBUTE_NODE	constant	Represents the node type for DOM Attributes.
CDATA_SECTION_NODE	constant	Represents the node type for DOM CDATA nodes.
COMMENT_NODE	constant	Represents the node type for DOM Comments.
DOCUMENT_FRAGMENT_NODE	constant	Represents the node type for DOM Document Fragments.
DOCUMENT_NODE	constant	Represents the node type for DOM Document Elements.
DOCUMENT_TYPE_NODE	constant	Represents the node type for DOM Document Type Declarations (DTD).
DOMSTRING_SIZE_ERR	constant	Represents DOM exception code 2.
ELEMENT_NODE	constant	Represents the node type for DOM Elements.
ENTITY_NODE	constant	Represents the node type for DOM Entities.
ENTITY_REFERENCE_NODE	constant	Represents the node type for DOM Entity References.
HIERARCHY_REQUEST_ERR	constant	Represents DOM exception code 3.
INDEX_SIZE_ERR	constant	Represents DOM exception code 1.
INUSE_ATTRIBUTE_ERR	constant	Represents DOM exception code 10.
INVALID_ACCESS_ERR	constant	Represents DOM exception code 15.
INVALID_CHARACTER_ERR	constant	Represents DOM exception code 5.
INVALID_MODIFICATION_ERR	constant	Represents DOM exception code 13.
INVALID_STATE_ERR	constant	Represents DOM exception code 11.
NAMESPACE_ERR	constant	Represents DOM exception code 14.
NO_DATA_ALLOWED_ERR	constant	Represents DOM exception code 6.
NO_MODIFICATION_ALLOWED_ERR	constant	Represents DOM exception code 7.
NOT_FOUND_ERR	constant	Represents DOM exception code 8.
NOT_SUPPORTED_ERR	constant	Represents DOM exception code 9.
NOTATION_NODE	constant	Represents the node type for DOM Notation Declarations.
PROCESSING_INSTRUCTION_NODE	constant	Represents the node type for DOM Processing Instructions.
stduri_xml	constant	Namespace URI for the xml prefix.
stduri_xmlns	constant	Namespace URI for the xmlns prefix.
SYNTAX_ERR	constant	Represents DOM exception code 12.
TEXT_NODE	constant	Represents the node type for DOM Text nodes.
WRONG_DOCUMENT_ERR	constant	Represents DOM exception code 4.

Uses

• SysUtils
• Classes
• Laz2_XMLUtils