Satoshi Togawa
Download picasa web albums photos automatically. This application requires mpod mother board. See also http://mbed.org/users/geodenx/notebook/mpod/
Dependencies: BlinkLed HTTPClient EthernetInterface FatFileSystemCpp MSCFileSystem mbed-rtos mbed
Download picasa web albums photos automatically.
This application requires mpod mother board.
Picasaウェブアルバムから、自動的に写真をダウンロードして、ディジタルフォトフレームに表示します。
動作させるには mpod マザーボード が必要です。
プログラムの中で、ご自分のアルバムのRSSファイルへのURLを指定してからご利用下さい。
Diff: TinyXml2/tinyxml2.h
- Revision:
- 5:66c3398a14c9
- Parent:
- 4:f2d619e67d44
- Child:
- 6:83383116c88a
--- a/TinyXml2/tinyxml2.h Fri Aug 24 17:39:24 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1483 +0,0 @@
-/*
-Original code by Lee Thomason (www.grinninglizard.com)
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any
-damages arising from the use of this software.
-
-Permission is granted to anyone to use this software for any
-purpose, including commercial applications, and to alter it and
-redistribute it freely, subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must
-not claim that you wrote the original software. If you use this
-software in a product, an acknowledgment in the product documentation
-would be appreciated but is not required.
-
-2. Altered source versions must be plainly marked as such, and
-must not be misrepresented as being the original software.
-
-3. This notice may not be removed or altered from any source
-distribution.
-*/
-
-#ifndef TINYXML2_INCLUDED
-#define TINYXML2_INCLUDED
-
-#include <cctype>
-#include <climits>
-#include <cstdio>
-#include <cstring>
-#include <cstdarg>
-#include "FATFileSystem.h"
-
-using namespace std;
-
-/*
- TODO: intern strings instead of allocation.
-*/
-/*
- gcc: g++ -Wall tinyxml2.cpp xmltest.cpp -o gccxmltest.exe
-*/
-
-#if defined( _DEBUG ) || defined( DEBUG ) || defined (__DEBUG__)
- #ifndef DEBUG
- #define DEBUG
- #endif
-#endif
-
-
-#if defined(DEBUG)
- #if defined(_MSC_VER)
- #define TIXMLASSERT( x ) if ( !(x)) { __debugbreak(); } //if ( !(x)) WinDebugBreak()
- #elif defined (ANDROID_NDK)
- #include <android/log.h>
- #define TIXMLASSERT( x ) if ( !(x)) { __android_log_assert( "assert", "grinliz", "ASSERT in '%s' at %d.", __FILE__, __LINE__ ); }
- #else
- #include <assert.h>
- #define TIXMLASSERT assert
- #endif
-#else
- #define TIXMLASSERT( x ) {}
-#endif
-
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1400 )
- // Microsoft visual studio, version 2005 and higher.
- /*int _snprintf_s(
- char *buffer,
- size_t sizeOfBuffer,
- size_t count,
- const char *format [,
- argument] ...
- );*/
- inline int TIXML_SNPRINTF( char* buffer, size_t size, const char* format, ... ) {
- va_list va;
- va_start( va, format );
- int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va );
- va_end( va );
- return result;
- }
- #define TIXML_SSCANF sscanf_s
-#else
- // GCC version 3 and higher
- //#warning( "Using sn* functions." )
- #define TIXML_SNPRINTF snprintf
- #define TIXML_SSCANF sscanf
-#endif
-
-static const int TIXML2_MAJOR_VERSION = 1;
-static const int TIXML2_MINOR_VERSION = 0;
-static const int TIXML2_PATCH_VERSION = 6;
-
-namespace tinyxml2
-{
-class XMLDocument;
-class XMLElement;
-class XMLAttribute;
-class XMLComment;
-class XMLNode;
-class XMLText;
-class XMLDeclaration;
-class XMLUnknown;
-
-class XMLPrinter;
-
-/*
- A class that wraps strings. Normally stores the start and end
- pointers into the XML file itself, and will apply normalization
- and entity translation if actually read. Can also store (and memory
- manage) a traditional char[]
-*/
-class StrPair
-{
-public:
- enum {
- NEEDS_ENTITY_PROCESSING = 0x01,
- NEEDS_NEWLINE_NORMALIZATION = 0x02,
-
- TEXT_ELEMENT = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
- TEXT_ELEMENT_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
- ATTRIBUTE_NAME = 0,
- ATTRIBUTE_VALUE = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
- ATTRIBUTE_VALUE_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
- COMMENT = NEEDS_NEWLINE_NORMALIZATION
- };
-
- StrPair() : flags( 0 ), start( 0 ), end( 0 ) {}
- ~StrPair();
-
- void Set( char* _start, char* _end, int _flags ) {
- Reset();
- this->start = _start; this->end = _end; this->flags = _flags | NEEDS_FLUSH;
- }
- const char* GetStr();
- bool Empty() const { return start == end; }
-
- void SetInternedStr( const char* str ) { Reset(); this->start = const_cast<char*>(str); }
- void SetStr( const char* str, int flags=0 );
-
- char* ParseText( char* in, const char* endTag, int strFlags );
- char* ParseName( char* in );
-
-
-private:
- void Reset();
-
- enum {
- NEEDS_FLUSH = 0x100,
- NEEDS_DELETE = 0x200
- };
-
- // After parsing, if *end != 0, it can be set to zero.
- int flags;
- char* start;
- char* end;
-};
-
-
-/*
- A dynamic array of Plain Old Data. Doesn't support constructors, etc.
- Has a small initial memory pool, so that low or no usage will not
- cause a call to new/delete
-*/
-template <class T, int INIT>
-class DynArray
-{
-public:
- DynArray< T, INIT >()
- {
- mem = pool;
- allocated = INIT;
- size = 0;
- }
- ~DynArray()
- {
- if ( mem != pool ) {
- delete [] mem;
- }
- }
- void Push( T t )
- {
- EnsureCapacity( size+1 );
- mem[size++] = t;
- }
-
- T* PushArr( int count )
- {
- EnsureCapacity( size+count );
- T* ret = &mem[size];
- size += count;
- return ret;
- }
- T Pop() {
- return mem[--size];
- }
- void PopArr( int count )
- {
- TIXMLASSERT( size >= count );
- size -= count;
- }
-
- bool Empty() const { return size == 0; }
- T& operator[](int i) { TIXMLASSERT( i>= 0 && i < size ); return mem[i]; }
- const T& operator[](int i) const { TIXMLASSERT( i>= 0 && i < size ); return mem[i]; }
- int Size() const { return size; }
- int Capacity() const { return allocated; }
- const T* Mem() const { return mem; }
- T* Mem() { return mem; }
-
-
-private:
- void EnsureCapacity( int cap ) {
- if ( cap > allocated ) {
- int newAllocated = cap * 2;
- T* newMem = new T[newAllocated];
- memcpy( newMem, mem, sizeof(T)*size ); // warning: not using constructors, only works for PODs
- if ( mem != pool ) delete [] mem;
- mem = newMem;
- allocated = newAllocated;
- }
- }
-
- T* mem;
- T pool[INIT];
- int allocated; // objects allocated
- int size; // number objects in use
-};
-
-
-/*
- Parent virtual class of a pool for fast allocation
- and deallocation of objects.
-*/
-class MemPool
-{
-public:
- MemPool() {}
- virtual ~MemPool() {}
-
- virtual int ItemSize() const = 0;
- virtual void* Alloc() = 0;
- virtual void Free( void* ) = 0;
-};
-
-
-/*
- Template child class to create pools of the correct type.
-*/
-template< int SIZE >
-class MemPoolT : public MemPool
-{
-public:
- MemPoolT() : root(0), currentAllocs(0), nAllocs(0), maxAllocs(0) {}
- virtual ~MemPoolT() {
- // Delete the blocks.
- for( int i=0; i<blockPtrs.Size(); ++i ) {
- delete blockPtrs[i];
- }
- }
-
- virtual int ItemSize() const { return SIZE; }
- int CurrentAllocs() const { return currentAllocs; }
-
- virtual void* Alloc() {
- if ( !root ) {
- // Need a new block.
- Block* block = new Block();
- blockPtrs.Push( block );
-
- for( int i=0; i<COUNT-1; ++i ) {
- block->chunk[i].next = &block->chunk[i+1];
- }
- block->chunk[COUNT-1].next = 0;
- root = block->chunk;
- }
- void* result = root;
- root = root->next;
-
- ++currentAllocs;
- if ( currentAllocs > maxAllocs ) maxAllocs = currentAllocs;
- nAllocs++;
- return result;
- }
- virtual void Free( void* mem ) {
- if ( !mem ) return;
- --currentAllocs;
- Chunk* chunk = (Chunk*)mem;
- memset( chunk, 0xfe, sizeof(Chunk) );
- chunk->next = root;
- root = chunk;
- }
- void Trace( const char* name ) {
- printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n",
- name, maxAllocs, maxAllocs*SIZE/1024, currentAllocs, SIZE, nAllocs, blockPtrs.Size() );
- }
-
-private:
- enum { COUNT = 1024/SIZE };
- union Chunk {
- Chunk* next;
- char mem[SIZE];
- };
- struct Block {
- Chunk chunk[COUNT];
- };
- DynArray< Block*, 10 > blockPtrs;
- Chunk* root;
-
- int currentAllocs;
- int nAllocs;
- int maxAllocs;
-};
-
-
-
-/**
- Implements the interface to the "Visitor pattern" (see the Accept() method.)
- If you call the Accept() method, it requires being passed a XMLVisitor
- class to handle callbacks. For nodes that contain other nodes (Document, Element)
- you will get called with a VisitEnter/VisitExit pair. Nodes that are always leafs
- are simply called with Visit().
-
- If you return 'true' from a Visit method, recursive parsing will continue. If you return
- false, <b>no children of this node or its sibilings</b> will be visited.
-
- All flavors of Visit methods have a default implementation that returns 'true' (continue
- visiting). You need to only override methods that are interesting to you.
-
- Generally Accept() is called on the TiXmlDocument, although all nodes support visiting.
-
- You should never change the document from a callback.
-
- @sa XMLNode::Accept()
-*/
-class XMLVisitor
-{
-public:
- virtual ~XMLVisitor() {}
-
- /// Visit a document.
- virtual bool VisitEnter( const XMLDocument& /*doc*/ ) { return true; }
- /// Visit a document.
- virtual bool VisitExit( const XMLDocument& /*doc*/ ) { return true; }
-
- /// Visit an element.
- virtual bool VisitEnter( const XMLElement& /*element*/, const XMLAttribute* /*firstAttribute*/ ) { return true; }
- /// Visit an element.
- virtual bool VisitExit( const XMLElement& /*element*/ ) { return true; }
-
- /// Visit a declaration.
- virtual bool Visit( const XMLDeclaration& /*declaration*/ ) { return true; }
- /// Visit a text node.
- virtual bool Visit( const XMLText& /*text*/ ) { return true; }
- /// Visit a comment node.
- virtual bool Visit( const XMLComment& /*comment*/ ) { return true; }
- /// Visit an unknown node.
- virtual bool Visit( const XMLUnknown& /*unknown*/ ) { return true; }
-};
-
-
-/*
- Utility functionality.
-*/
-class XMLUtil
-{
-public:
- // Anything in the high order range of UTF-8 is assumed to not be whitespace. This isn't
- // correct, but simple, and usually works.
- static const char* SkipWhiteSpace( const char* p ) { while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<const unsigned char*>(p) ) ) { ++p; } return p; }
- static char* SkipWhiteSpace( char* p ) { while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<unsigned char*>(p) ) ) { ++p; } return p; }
-
- inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) {
- int n = 0;
- if ( p == q ) {
- return true;
- }
- while( *p && *q && *p == *q && n<nChar ) {
- ++p; ++q; ++n;
- }
- if ( (n == nChar) || ( *p == 0 && *q == 0 ) ) {
- return true;
- }
- return false;
- }
- inline static int IsUTF8Continuation( const char p ) { return p & 0x80; }
- inline static int IsAlphaNum( unsigned char anyByte ) { return ( anyByte < 128 ) ? isalnum( anyByte ) : 1; }
- inline static int IsAlpha( unsigned char anyByte ) { return ( anyByte < 128 ) ? isalpha( anyByte ) : 1; }
-
- static const char* ReadBOM( const char* p, bool* hasBOM );
- // p is the starting location,
- // the UTF-8 value of the entity will be placed in value, and length filled in.
- static const char* GetCharacterRef( const char* p, char* value, int* length );
- static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length );
-
- // converts primitive types to strings
- static void ToStr( int v, char* buffer, int bufferSize );
- static void ToStr( unsigned v, char* buffer, int bufferSize );
- static void ToStr( bool v, char* buffer, int bufferSize );
- static void ToStr( float v, char* buffer, int bufferSize );
- static void ToStr( double v, char* buffer, int bufferSize );
-
- // converts strings to primitive types
- static bool ToInt( const char* str, int* value );
- static bool ToUnsigned( const char* str, unsigned* value );
- static bool ToBool( const char* str, bool* value );
- static bool ToFloat( const char* str, float* value );
- static bool ToDouble( const char* str, double* value );
-};
-
-
-/** XMLNode is a base class for every object that is in the
- XML Document Object Model (DOM), except XMLAttributes.
- Nodes have siblings, a parent, and children which can
- be navigated. A node is always in a XMLDocument.
- The type of a XMLNode can be queried, and it can
- be cast to its more defined type.
-
- A XMLDocument allocates memory for all its Nodes.
- When the XMLDocument gets deleted, all its Nodes
- will also be deleted.
-
- @verbatim
- A Document can contain: Element (container or leaf)
- Comment (leaf)
- Unknown (leaf)
- Declaration( leaf )
-
- An Element can contain: Element (container or leaf)
- Text (leaf)
- Attributes (not on tree)
- Comment (leaf)
- Unknown (leaf)
-
- @endverbatim
-*/
-class XMLNode
-{
- friend class XMLDocument;
- friend class XMLElement;
-public:
-
- /// Get the XMLDocument that owns this XMLNode.
- const XMLDocument* GetDocument() const { return document; }
- /// Get the XMLDocument that owns this XMLNode.
- XMLDocument* GetDocument() { return document; }
-
- virtual XMLElement* ToElement() { return 0; } ///< Safely cast to an Element, or null.
- virtual XMLText* ToText() { return 0; } ///< Safely cast to Text, or null.
- virtual XMLComment* ToComment() { return 0; } ///< Safely cast to a Comment, or null.
- virtual XMLDocument* ToDocument() { return 0; } ///< Safely cast to a Document, or null.
- virtual XMLDeclaration* ToDeclaration() { return 0; } ///< Safely cast to a Declaration, or null.
- virtual XMLUnknown* ToUnknown() { return 0; } ///< Safely cast to an Unknown, or null.
-
- virtual const XMLElement* ToElement() const { return 0; }
- virtual const XMLText* ToText() const { return 0; }
- virtual const XMLComment* ToComment() const { return 0; }
- virtual const XMLDocument* ToDocument() const { return 0; }
- virtual const XMLDeclaration* ToDeclaration() const { return 0; }
- virtual const XMLUnknown* ToUnknown() const { return 0; }
-
- /** The meaning of 'value' changes for the specific type.
- @verbatim
- Document: empty
- Element: name of the element
- Comment: the comment text
- Unknown: the tag contents
- Text: the text string
- @endverbatim
- */
- const char* Value() const { return value.GetStr(); }
- /** Set the Value of an XML node.
- @sa Value()
- */
- void SetValue( const char* val, bool staticMem=false );
-
- /// Get the parent of this node on the DOM.
- const XMLNode* Parent() const { return parent; }
- XMLNode* Parent() { return parent; }
-
- /// Returns true if this node has no children.
- bool NoChildren() const { return !firstChild; }
-
- /// Get the first child node, or null if none exists.
- const XMLNode* FirstChild() const { return firstChild; }
- XMLNode* FirstChild() { return firstChild; }
- /** Get the first child element, or optionally the first child
- element with the specified name.
- */
- const XMLElement* FirstChildElement( const char* value=0 ) const;
- XMLElement* FirstChildElement( const char* _value=0 ) { return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->FirstChildElement( _value )); }
-
- /// Get the last child node, or null if none exists.
- const XMLNode* LastChild() const { return lastChild; }
- XMLNode* LastChild() { return const_cast<XMLNode*>(const_cast<const XMLNode*>(this)->LastChild() ); }
-
- /** Get the last child element or optionally the last child
- element with the specified name.
- */
- const XMLElement* LastChildElement( const char* value=0 ) const;
- XMLElement* LastChildElement( const char* _value=0 ) { return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->LastChildElement(_value) ); }
-
- /// Get the previous (left) sibling node of this node.
- const XMLNode* PreviousSibling() const { return prev; }
- XMLNode* PreviousSibling() { return prev; }
-
- /// Get the previous (left) sibling element of this node, with an opitionally supplied name.
- const XMLElement* PreviousSiblingElement( const char* value=0 ) const ;
- XMLElement* PreviousSiblingElement( const char* _value=0 ) { return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->PreviousSiblingElement( _value ) ); }
-
- /// Get the next (right) sibling node of this node.
- const XMLNode* NextSibling() const { return next; }
- XMLNode* NextSibling() { return next; }
-
- /// Get the next (right) sibling element of this node, with an opitionally supplied name.
- const XMLElement* NextSiblingElement( const char* value=0 ) const;
- XMLElement* NextSiblingElement( const char* _value=0 ) { return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->NextSiblingElement( _value ) ); }
-
- /**
- Add a child node as the last (right) child.
- */
- XMLNode* InsertEndChild( XMLNode* addThis );
-
- XMLNode* LinkEndChild( XMLNode* addThis ) { return InsertEndChild( addThis ); }
- /**
- Add a child node as the first (left) child.
- */
- XMLNode* InsertFirstChild( XMLNode* addThis );
- /**
- Add a node after the specified child node.
- */
- XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis );
-
- /**
- Delete all the children of this node.
- */
- void DeleteChildren();
-
- /**
- Delete a child of this node.
- */
- void DeleteChild( XMLNode* node );
-
- /**
- Make a copy of this node, but not its children.
- You may pass in a Document pointer that will be
- the owner of the new Node. If the 'document' is
- null, then the node returned will be allocated
- from the current Document. (this->GetDocument())
-
- Note: if called on a XMLDocument, this will return null.
- */
- virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;
-
- /**
- Test if 2 nodes are the same, but don't test children.
- The 2 nodes do not need to be in the same Document.
-
- Note: if called on a XMLDocument, this will return false.
- */
- virtual bool ShallowEqual( const XMLNode* compare ) const = 0;
-
- /** Accept a hierarchical visit of the nodes in the TinyXML DOM. Every node in the
- XML tree will be conditionally visited and the host will be called back
- via the TiXmlVisitor interface.
-
- This is essentially a SAX interface for TinyXML. (Note however it doesn't re-parse
- the XML for the callbacks, so the performance of TinyXML is unchanged by using this
- interface versus any other.)
-
- The interface has been based on ideas from:
-
- - http://www.saxproject.org/
- - http://c2.com/cgi/wiki?HierarchicalVisitorPattern
-
- Which are both good references for "visiting".
-
- An example of using Accept():
- @verbatim
- TiXmlPrinter printer;
- tinyxmlDoc.Accept( &printer );
- const char* xmlcstr = printer.CStr();
- @endverbatim
- */
- virtual bool Accept( XMLVisitor* visitor ) const = 0;
-
- // internal
- virtual char* ParseDeep( char*, StrPair* );
-
-protected:
- XMLNode( XMLDocument* );
- virtual ~XMLNode();
- XMLNode( const XMLNode& ); // not supported
- XMLNode& operator=( const XMLNode& ); // not supported
-
- XMLDocument* document;
- XMLNode* parent;
- mutable StrPair value;
-
- XMLNode* firstChild;
- XMLNode* lastChild;
-
- XMLNode* prev;
- XMLNode* next;
-
-private:
- MemPool* memPool;
- void Unlink( XMLNode* child );
-};
-
-
-/** XML text.
-
- Note that a text node can have child element nodes, for example:
- @verbatim
- <root>This is <b>bold</b></root>
- @endverbatim
-
- A text node can have 2 ways to output the next. "normal" output
- and CDATA. It will default to the mode it was parsed from the XML file and
- you generally want to leave it alone, but you can change the output mode with
- SetCDATA() and query it with CDATA().
-*/
-class XMLText : public XMLNode
-{
- friend class XMLBase;
- friend class XMLDocument;
-public:
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- virtual XMLText* ToText() { return this; }
- virtual const XMLText* ToText() const { return this; }
-
- /// Declare whether this should be CDATA or standard text.
- void SetCData( bool _isCData ) { this->isCData = _isCData; }
- /// Returns true if this is a CDATA text element.
- bool CData() const { return isCData; }
-
- virtual char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-
-protected:
- XMLText( XMLDocument* doc ) : XMLNode( doc ), isCData( false ) {}
- virtual ~XMLText() {}
- XMLText( const XMLText& ); // not supported
- XMLText& operator=( const XMLText& ); // not supported
-
-private:
- bool isCData;
-};
-
-
-/** An XML Comment. */
-class XMLComment : public XMLNode
-{
- friend class XMLDocument;
-public:
- virtual XMLComment* ToComment() { return this; }
- virtual const XMLComment* ToComment() const { return this; }
-
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- virtual char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLComment( XMLDocument* doc );
- virtual ~XMLComment();
- XMLComment( const XMLComment& ); // not supported
- XMLComment& operator=( const XMLComment& ); // not supported
-
-private:
-};
-
-
-/** In correct XML the declaration is the first entry in the file.
- @verbatim
- <?xml version="1.0" standalone="yes"?>
- @endverbatim
-
- TinyXML2 will happily read or write files without a declaration,
- however.
-
- The text of the declaration isn't interpreted. It is parsed
- and written as a string.
-*/
-class XMLDeclaration : public XMLNode
-{
- friend class XMLDocument;
-public:
- virtual XMLDeclaration* ToDeclaration() { return this; }
- virtual const XMLDeclaration* ToDeclaration() const { return this; }
-
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- virtual char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLDeclaration( XMLDocument* doc );
- virtual ~XMLDeclaration();
- XMLDeclaration( const XMLDeclaration& ); // not supported
- XMLDeclaration& operator=( const XMLDeclaration& ); // not supported
-};
-
-
-/** Any tag that tinyXml doesn't recognize is saved as an
- unknown. It is a tag of text, but should not be modified.
- It will be written back to the XML, unchanged, when the file
- is saved.
-
- DTD tags get thrown into TiXmlUnknowns.
-*/
-class XMLUnknown : public XMLNode
-{
- friend class XMLDocument;
-public:
- virtual XMLUnknown* ToUnknown() { return this; }
- virtual const XMLUnknown* ToUnknown() const { return this; }
-
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- virtual char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLUnknown( XMLDocument* doc );
- virtual ~XMLUnknown();
- XMLUnknown( const XMLUnknown& ); // not supported
- XMLUnknown& operator=( const XMLUnknown& ); // not supported
-};
-
-
-enum {
- XML_NO_ERROR = 0,
- XML_SUCCESS = 0,
-
- XML_NO_ATTRIBUTE,
- XML_WRONG_ATTRIBUTE_TYPE,
-
- XML_ERROR_FILE_NOT_FOUND,
- XML_ERROR_FILE_COULD_NOT_BE_OPENED,
- XML_ERROR_FILE_READ_ERROR,
- XML_ERROR_ELEMENT_MISMATCH,
- XML_ERROR_PARSING_ELEMENT,
- XML_ERROR_PARSING_ATTRIBUTE,
- XML_ERROR_IDENTIFYING_TAG,
- XML_ERROR_PARSING_TEXT,
- XML_ERROR_PARSING_CDATA,
- XML_ERROR_PARSING_COMMENT,
- XML_ERROR_PARSING_DECLARATION,
- XML_ERROR_PARSING_UNKNOWN,
- XML_ERROR_EMPTY_DOCUMENT,
- XML_ERROR_MISMATCHED_ELEMENT,
- XML_ERROR_PARSING,
-
- XML_CAN_NOT_CONVERT_TEXT,
- XML_NO_TEXT_NODE
-};
-
-
-/** An attribute is a name-value pair. Elements have an arbitrary
- number of attributes, each with a unique name.
-
- @note The attributes are not XMLNodes. You may only query the
- Next() attribute in a list.
-*/
-class XMLAttribute
-{
- friend class XMLElement;
-public:
- const char* Name() const { return name.GetStr(); } ///< The name of the attribute.
- const char* Value() const { return value.GetStr(); } ///< The value of the attribute.
- const XMLAttribute* Next() const { return next; } ///< The next attribute in the list.
-
- /** IntAttribute interprets the attribute as an integer, and returns the value.
- If the value isn't an integer, 0 will be returned. There is no error checking;
- use QueryIntAttribute() if you need error checking.
- */
- int IntValue() const { int i=0; QueryIntValue( &i ); return i; }
- /// Query as an unsigned integer. See IntAttribute()
- unsigned UnsignedValue() const { unsigned i=0; QueryUnsignedValue( &i ); return i; }
- /// Query as a boolean. See IntAttribute()
- bool BoolValue() const { bool b=false; QueryBoolValue( &b ); return b; }
- /// Query as a double. See IntAttribute()
- double DoubleValue() const { double d=0; QueryDoubleValue( &d ); return d; }
- /// Query as a float. See IntAttribute()
- float FloatValue() const { float f=0; QueryFloatValue( &f ); return f; }
-
- /** QueryIntAttribute interprets the attribute as an integer, and returns the value
- in the provided paremeter. The function will return XML_NO_ERROR on success,
- and XML_WRONG_ATTRIBUTE_TYPE if the conversion is not successful.
- */
- int QueryIntValue( int* value ) const;
- /// See QueryIntAttribute
- int QueryUnsignedValue( unsigned int* value ) const;
- /// See QueryIntAttribute
- int QueryBoolValue( bool* value ) const;
- /// See QueryIntAttribute
- int QueryDoubleValue( double* value ) const;
- /// See QueryIntAttribute
- int QueryFloatValue( float* value ) const;
-
- /// Set the attribute to a string value.
- void SetAttribute( const char* value );
- /// Set the attribute to value.
- void SetAttribute( int value );
- /// Set the attribute to value.
- void SetAttribute( unsigned value );
- /// Set the attribute to value.
- void SetAttribute( bool value );
- /// Set the attribute to value.
- void SetAttribute( double value );
- /// Set the attribute to value.
- void SetAttribute( float value );
-
-private:
- enum { BUF_SIZE = 200 };
-
- XMLAttribute() : next( 0 ) {}
- virtual ~XMLAttribute() {}
- XMLAttribute( const XMLAttribute& ); // not supported
- void operator=( const XMLAttribute& ); // not supported
- void SetName( const char* name );
-
- char* ParseDeep( char* p, bool processEntities );
-
- mutable StrPair name;
- mutable StrPair value;
- XMLAttribute* next;
- MemPool* memPool;
-};
-
-
-/** The element is a container class. It has a value, the element name,
- and can contain other elements, text, comments, and unknowns.
- Elements also contain an arbitrary number of attributes.
-*/
-class XMLElement : public XMLNode
-{
- friend class XMLBase;
- friend class XMLDocument;
-public:
- /// Get the name of an element (which is the Value() of the node.)
- const char* Name() const { return Value(); }
- /// Set the name of the element.
- void SetName( const char* str, bool staticMem=false ) { SetValue( str, staticMem ); }
-
- virtual XMLElement* ToElement() { return this; }
- virtual const XMLElement* ToElement() const { return this; }
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- /** Given an attribute name, Attribute() returns the value
- for the attribute of that name, or null if none
- exists. For example:
-
- @verbatim
- const char* value = ele->Attribute( "foo" );
- @endverbatim
-
- The 'value' parameter is normally null. However, if specified,
- the attribute will only be returned if the 'name' and 'value'
- match. This allow you to write code:
-
- @verbatim
- if ( ele->Attribute( "foo", "bar" ) ) callFooIsBar();
- @endverbatim
-
- rather than:
- @verbatim
- if ( ele->Attribute( "foo" ) ) {
- if ( strcmp( ele->Attribute( "foo" ), "bar" ) == 0 ) callFooIsBar();
- }
- @endverbatim
- */
- const char* Attribute( const char* name, const char* value=0 ) const;
-
- /** Given an attribute name, IntAttribute() returns the value
- of the attribute interpreted as an integer. 0 will be
- returned if there is an error. For a method with error
- checking, see QueryIntAttribute()
- */
- int IntAttribute( const char* name ) const { int i=0; QueryIntAttribute( name, &i ); return i; }
- /// See IntAttribute()
- unsigned UnsignedAttribute( const char* name ) const{ unsigned i=0; QueryUnsignedAttribute( name, &i ); return i; }
- /// See IntAttribute()
- bool BoolAttribute( const char* name ) const { bool b=false; QueryBoolAttribute( name, &b ); return b; }
- /// See IntAttribute()
- double DoubleAttribute( const char* name ) const { double d=0; QueryDoubleAttribute( name, &d ); return d; }
- /// See IntAttribute()
- float FloatAttribute( const char* name ) const { float f=0; QueryFloatAttribute( name, &f ); return f; }
-
- /** Given an attribute name, QueryIntAttribute() returns
- XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion
- can't be performed, or XML_NO_ATTRIBUTE if the attribute
- doesn't exist. If successful, the result of the conversion
- will be written to 'value'. If not successful, nothing will
- be written to 'value'. This allows you to provide default
- value:
-
- @verbatim
- int value = 10;
- QueryIntAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10
- @endverbatim
- */
- int QueryIntAttribute( const char* name, int* _value ) const { const XMLAttribute* a = FindAttribute( name ); if ( !a ) return XML_NO_ATTRIBUTE; return a->QueryIntValue( _value ); }
- /// See QueryIntAttribute()
- int QueryUnsignedAttribute( const char* name, unsigned int* _value ) const { const XMLAttribute* a = FindAttribute( name ); if ( !a ) return XML_NO_ATTRIBUTE; return a->QueryUnsignedValue( _value ); }
- /// See QueryIntAttribute()
- int QueryBoolAttribute( const char* name, bool* _value ) const { const XMLAttribute* a = FindAttribute( name ); if ( !a ) return XML_NO_ATTRIBUTE; return a->QueryBoolValue( _value ); }
- /// See QueryIntAttribute()
- int QueryDoubleAttribute( const char* name, double* _value ) const { const XMLAttribute* a = FindAttribute( name ); if ( !a ) return XML_NO_ATTRIBUTE; return a->QueryDoubleValue( _value ); }
- /// See QueryIntAttribute()
- int QueryFloatAttribute( const char* name, float* _value ) const { const XMLAttribute* a = FindAttribute( name ); if ( !a ) return XML_NO_ATTRIBUTE; return a->QueryFloatValue( _value ); }
-
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, const char* _value ) { XMLAttribute* a = FindOrCreateAttribute( name ); a->SetAttribute( _value ); }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, int _value ) { XMLAttribute* a = FindOrCreateAttribute( name ); a->SetAttribute( _value ); }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, unsigned _value ) { XMLAttribute* a = FindOrCreateAttribute( name ); a->SetAttribute( _value ); }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, bool _value ) { XMLAttribute* a = FindOrCreateAttribute( name ); a->SetAttribute( _value ); }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, double _value ) { XMLAttribute* a = FindOrCreateAttribute( name ); a->SetAttribute( _value ); }
-
- /**
- Delete an attribute.
- */
- void DeleteAttribute( const char* name );
-
- /// Return the first attribute in the list.
- const XMLAttribute* FirstAttribute() const { return rootAttribute; }
- /// Query a specific attribute in the list.
- const XMLAttribute* FindAttribute( const char* name ) const;
-
- /** Convenience function for easy access to the text inside an element. Although easy
- and concise, GetText() is limited compared to getting the TiXmlText child
- and accessing it directly.
-
- If the first child of 'this' is a TiXmlText, the GetText()
- returns the character string of the Text node, else null is returned.
-
- This is a convenient method for getting the text of simple contained text:
- @verbatim
- <foo>This is text</foo>
- const char* str = fooElement->GetText();
- @endverbatim
-
- 'str' will be a pointer to "This is text".
-
- Note that this function can be misleading. If the element foo was created from
- this XML:
- @verbatim
- <foo><b>This is text</b></foo>
- @endverbatim
-
- then the value of str would be null. The first child node isn't a text node, it is
- another element. From this XML:
- @verbatim
- <foo>This is <b>text</b></foo>
- @endverbatim
- GetText() will return "This is ".
- */
- const char* GetText() const;
-
- /**
- Convenience method to query the value of a child text node. This is probably best
- shown by example. Given you have a document is this form:
- @verbatim
- <point>
- <x>1</x>
- <y>1.4</y>
- </point>
- @endverbatim
-
- The QueryIntText() and similar functions provide a safe and easier way to get to the
- "value" of x and y.
-
- @verbatim
- int x = 0;
- float y = 0; // types of x and y are contrived for example
- const XMLElement* xElement = pointElement->FirstChildElement( "x" );
- const XMLElement* yElement = pointElement->FirstChildElement( "y" );
- xElement->QueryIntText( &x );
- yElement->QueryFloatText( &y );
- @endverbatim
-
- @returns XML_SUCCESS (0) on success, XML_CAN_NOT_CONVERT_TEXT if the text cannot be converted
- to the requested type, and XML_NO_TEXT_NODE if there is no child text to query.
-
- */
- int QueryIntText( int* _value ) const;
- /// See QueryIntText()
- int QueryUnsignedText( unsigned* _value ) const;
- /// See QueryIntText()
- int QueryBoolText( bool* _value ) const;
- /// See QueryIntText()
- int QueryDoubleText( double* _value ) const;
- /// See QueryIntText()
- int QueryFloatText( float* _value ) const;
-
- // internal:
- enum {
- OPEN, // <foo>
- CLOSED, // <foo/>
- CLOSING // </foo>
- };
- int ClosingType() const { return closingType; }
- virtual char* ParseDeep( char* p, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-private:
- XMLElement( XMLDocument* doc );
- virtual ~XMLElement();
- XMLElement( const XMLElement& ); // not supported
- void operator=( const XMLElement& ); // not supported
-
- XMLAttribute* FindAttribute( const char* name );
- XMLAttribute* FindOrCreateAttribute( const char* name );
- //void LinkAttribute( XMLAttribute* attrib );
- char* ParseAttributes( char* p );
-
- int closingType;
- // The attribute list is ordered; there is no 'lastAttribute'
- // because the list needs to be scanned for dupes before adding
- // a new attribute.
- XMLAttribute* rootAttribute;
-};
-
-
-/** A Document binds together all the functionality.
- It can be saved, loaded, and printed to the screen.
- All Nodes are connected and allocated to a Document.
- If the Document is deleted, all its Nodes are also deleted.
-*/
-class XMLDocument : public XMLNode
-{
- friend class XMLElement;
-public:
- /// constructor
- XMLDocument( bool processEntities = true );
- virtual ~XMLDocument();
-
- virtual XMLDocument* ToDocument() { return this; }
- virtual const XMLDocument* ToDocument() const { return this; }
-
- /**
- Parse an XML file from a character string.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- int Parse( const char* xml );
-
- /**
- Load an XML file from disk.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- int LoadFile( const char* filename );
-
- /**
- Load an XML file from disk. You are responsible
- for providing and closing the FILE*.
-
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- int LoadFile( FILE* );
-
- /**
- Save the XML file to disk.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- int SaveFile( const char* filename );
-
- /**
- Save the XML file to disk. You are responsible
- for providing and closing the FILE*.
-
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- int SaveFile( FILE* );
-
- bool ProcessEntities() const { return processEntities; }
-
- /**
- Returns true if this document has a leading Byte Order Mark of UTF8.
- */
- bool HasBOM() const { return writeBOM; }
- /** Sets whether to write the BOM when writing the file.
- */
- void SetBOM( bool useBOM ) { writeBOM = useBOM; }
-
- /** Return the root element of DOM. Equivalent to FirstChildElement().
- To get the first node, use FirstChild().
- */
- XMLElement* RootElement() { return FirstChildElement(); }
- const XMLElement* RootElement() const { return FirstChildElement(); }
-
- /** Print the Document. If the Printer is not provided, it will
- print to stdout. If you provide Printer, this can print to a file:
- @verbatim
- XMLPrinter printer( fp );
- doc.Print( &printer );
- @endverbatim
-
- Or you can use a printer to print to memory:
- @verbatim
- XMLPrinter printer;
- doc->Print( &printer );
- // printer.CStr() has a const char* to the XML
- @endverbatim
- */
- void Print( XMLPrinter* streamer=0 );
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- /**
- Create a new Element associated with
- this Document. The memory for the Element
- is managed by the Document.
- */
- XMLElement* NewElement( const char* name );
- /**
- Create a new Comment associated with
- this Document. The memory for the Comment
- is managed by the Document.
- */
- XMLComment* NewComment( const char* comment );
- /**
- Create a new Text associated with
- this Document. The memory for the Text
- is managed by the Document.
- */
- XMLText* NewText( const char* text );
- /**
- Create a new Declaration associated with
- this Document. The memory for the object
- is managed by the Document.
-
- If the 'text' param is null, the standard
- declaration is used.:
- @verbatim
- <?xml version="1.0" encoding="UTF-8"?>
- @endverbatim
- */
- XMLDeclaration* NewDeclaration( const char* text=0 );
- /**
- Create a new Unknown associated with
- this Document. The memory for the object
- is managed by the Document.
- */
- XMLUnknown* NewUnknown( const char* text );
-
- /**
- Delete a node associated with this document.
- It will be unlinked from the DOM.
- */
- void DeleteNode( XMLNode* node ) { node->parent->DeleteChild( node ); }
-
- void SetError( int error, const char* str1, const char* str2 );
-
- /// Return true if there was an error parsing the document.
- bool Error() const { return errorID != XML_NO_ERROR; }
- /// Return the errorID.
- int ErrorID() const { return errorID; }
- /// Return a possibly helpful diagnostic location or string.
- const char* GetErrorStr1() const { return errorStr1; }
- /// Return a possibly helpful secondary diagnostic location or string.
- const char* GetErrorStr2() const { return errorStr2; }
- /// If there is an error, print it to stdout.
- void PrintError() const;
-
- // internal
- char* Identify( char* p, XMLNode** node );
-
- virtual XMLNode* ShallowClone( XMLDocument* /*document*/ ) const { return 0; }
- virtual bool ShallowEqual( const XMLNode* /*compare*/ ) const { return false; }
-
-private:
- XMLDocument( const XMLDocument& ); // not supported
- void operator=( const XMLDocument& ); // not supported
- void InitDocument();
-
- bool writeBOM;
- bool processEntities;
- int errorID;
- const char* errorStr1;
- const char* errorStr2;
- char* charBuffer;
-
- MemPoolT< sizeof(XMLElement) > elementPool;
- MemPoolT< sizeof(XMLAttribute) > attributePool;
- MemPoolT< sizeof(XMLText) > textPool;
- MemPoolT< sizeof(XMLComment) > commentPool;
-};
-
-
-/**
- A XMLHandle is a class that wraps a node pointer with null checks; this is
- an incredibly useful thing. Note that XMLHandle is not part of the TinyXML
- DOM structure. It is a separate utility class.
-
- Take an example:
- @verbatim
- <Document>
- <Element attributeA = "valueA">
- <Child attributeB = "value1" />
- <Child attributeB = "value2" />
- </Element>
- </Document>
- @endverbatim
-
- Assuming you want the value of "attributeB" in the 2nd "Child" element, it's very
- easy to write a *lot* of code that looks like:
-
- @verbatim
- XMLElement* root = document.FirstChildElement( "Document" );
- if ( root )
- {
- XMLElement* element = root->FirstChildElement( "Element" );
- if ( element )
- {
- XMLElement* child = element->FirstChildElement( "Child" );
- if ( child )
- {
- XMLElement* child2 = child->NextSiblingElement( "Child" );
- if ( child2 )
- {
- // Finally do something useful.
- @endverbatim
-
- And that doesn't even cover "else" cases. XMLHandle addresses the verbosity
- of such code. A XMLHandle checks for null pointers so it is perfectly safe
- and correct to use:
-
- @verbatim
- XMLHandle docHandle( &document );
- XMLElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).FirstChild().NextSibling().ToElement();
- if ( child2 )
- {
- // do something useful
- @endverbatim
-
- Which is MUCH more concise and useful.
-
- It is also safe to copy handles - internally they are nothing more than node pointers.
- @verbatim
- XMLHandle handleCopy = handle;
- @endverbatim
-
- See also XMLConstHandle, which is the same as XMLHandle, but operates on const objects.
-*/
-class XMLHandle
-{
-public:
- /// Create a handle from any node (at any depth of the tree.) This can be a null pointer.
- XMLHandle( XMLNode* _node ) { node = _node; }
- /// Create a handle from a node.
- XMLHandle( XMLNode& _node ) { node = &_node; }
- /// Copy constructor
- XMLHandle( const XMLHandle& ref ) { node = ref.node; }
- /// Assignment
- XMLHandle& operator=( const XMLHandle& ref ) { node = ref.node; return *this; }
-
- /// Get the first child of this handle.
- XMLHandle FirstChild() { return XMLHandle( node ? node->FirstChild() : 0 ); }
- /// Get the first child element of this handle.
- XMLHandle FirstChildElement( const char* value=0 ) { return XMLHandle( node ? node->FirstChildElement( value ) : 0 ); }
- /// Get the last child of this handle.
- XMLHandle LastChild() { return XMLHandle( node ? node->LastChild() : 0 ); }
- /// Get the last child element of this handle.
- XMLHandle LastChildElement( const char* _value=0 ) { return XMLHandle( node ? node->LastChildElement( _value ) : 0 ); }
- /// Get the previous sibling of this handle.
- XMLHandle PreviousSibling() { return XMLHandle( node ? node->PreviousSibling() : 0 ); }
- /// Get the previous sibling element of this handle.
- XMLHandle PreviousSiblingElement( const char* _value=0 ) { return XMLHandle( node ? node->PreviousSiblingElement( _value ) : 0 ); }
- /// Get the next sibling of this handle.
- XMLHandle NextSibling() { return XMLHandle( node ? node->NextSibling() : 0 ); }
- /// Get the next sibling element of this handle.
- XMLHandle NextSiblingElement( const char* _value=0 ) { return XMLHandle( node ? node->NextSiblingElement( _value ) : 0 ); }
-
- /// Safe cast to XMLNode. This can return null.
- XMLNode* ToNode() { return node; }
- /// Safe cast to XMLElement. This can return null.
- XMLElement* ToElement() { return ( ( node && node->ToElement() ) ? node->ToElement() : 0 ); }
- /// Safe cast to XMLText. This can return null.
- XMLText* ToText() { return ( ( node && node->ToText() ) ? node->ToText() : 0 ); }
- /// Safe cast to XMLUnknown. This can return null.
- XMLUnknown* ToUnknown() { return ( ( node && node->ToUnknown() ) ? node->ToUnknown() : 0 ); }
- /// Safe cast to XMLDeclaration. This can return null.
- XMLDeclaration* ToDeclaration() { return ( ( node && node->ToDeclaration() ) ? node->ToDeclaration() : 0 ); }
-
-private:
- XMLNode* node;
-};
-
-
-/**
- A variant of the XMLHandle class for working with const XMLNodes and Documents. It is the
- same in all regards, except for the 'const' qualifiers. See XMLHandle for API.
-*/
-class XMLConstHandle
-{
-public:
- XMLConstHandle( const XMLNode* _node ) { node = _node; }
- XMLConstHandle( const XMLNode& _node ) { node = &_node; }
- XMLConstHandle( const XMLConstHandle& ref ) { node = ref.node; }
-
- XMLConstHandle& operator=( const XMLConstHandle& ref ) { node = ref.node; return *this; }
-
- const XMLConstHandle FirstChild() const { return XMLConstHandle( node ? node->FirstChild() : 0 ); }
- const XMLConstHandle FirstChildElement( const char* value=0 ) const { return XMLConstHandle( node ? node->FirstChildElement( value ) : 0 ); }
- const XMLConstHandle LastChild() const { return XMLConstHandle( node ? node->LastChild() : 0 ); }
- const XMLConstHandle LastChildElement( const char* _value=0 ) const { return XMLConstHandle( node ? node->LastChildElement( _value ) : 0 ); }
- const XMLConstHandle PreviousSibling() const { return XMLConstHandle( node ? node->PreviousSibling() : 0 ); }
- const XMLConstHandle PreviousSiblingElement( const char* _value=0 ) const { return XMLConstHandle( node ? node->PreviousSiblingElement( _value ) : 0 ); }
- const XMLConstHandle NextSibling() const { return XMLConstHandle( node ? node->NextSibling() : 0 ); }
- const XMLConstHandle NextSiblingElement( const char* _value=0 ) const { return XMLConstHandle( node ? node->NextSiblingElement( _value ) : 0 ); }
-
-
- const XMLNode* ToNode() const { return node; }
- const XMLElement* ToElement() const { return ( ( node && node->ToElement() ) ? node->ToElement() : 0 ); }
- const XMLText* ToText() const { return ( ( node && node->ToText() ) ? node->ToText() : 0 ); }
- const XMLUnknown* ToUnknown() const { return ( ( node && node->ToUnknown() ) ? node->ToUnknown() : 0 ); }
- const XMLDeclaration* ToDeclaration() const { return ( ( node && node->ToDeclaration() ) ? node->ToDeclaration() : 0 ); }
-
-private:
- const XMLNode* node;
-};
-
-
-/**
- Printing functionality. The XMLPrinter gives you more
- options than the XMLDocument::Print() method.
-
- It can:
- -# Print to memory.
- -# Print to a file you provide.
- -# Print XML without a XMLDocument.
-
- Print to Memory
-
- @verbatim
- XMLPrinter printer;
- doc->Print( &printer );
- SomeFunction( printer.CStr() );
- @endverbatim
-
- Print to a File
-
- You provide the file pointer.
- @verbatim
- XMLPrinter printer( fp );
- doc.Print( &printer );
- @endverbatim
-
- Print without a XMLDocument
-
- When loading, an XML parser is very useful. However, sometimes
- when saving, it just gets in the way. The code is often set up
- for streaming, and constructing the DOM is just overhead.
-
- The Printer supports the streaming case. The following code
- prints out a trivially simple XML file without ever creating
- an XML document.
-
- @verbatim
- XMLPrinter printer( fp );
- printer.OpenElement( "foo" );
- printer.PushAttribute( "foo", "bar" );
- printer.CloseElement();
- @endverbatim
-*/
-class XMLPrinter : public XMLVisitor
-{
-public:
- /** Construct the printer. If the FILE* is specified,
- this will print to the FILE. Else it will print
- to memory, and the result is available in CStr().
- If 'compact' is set to true, then output is created
- with only required whitespace and newlines.
- */
- XMLPrinter( FILE* file=0, bool compact = false );
- virtual ~XMLPrinter() {}
-
- /** If streaming, write the BOM and declaration. */
- void PushHeader( bool writeBOM, bool writeDeclaration );
- /** If streaming, start writing an element.
- The element must be closed with CloseElement()
- */
- void OpenElement( const char* name );
- /// If streaming, add an attribute to an open element.
- void PushAttribute( const char* name, const char* value );
- void PushAttribute( const char* name, int value );
- void PushAttribute( const char* name, unsigned value );
- void PushAttribute( const char* name, bool value );
- void PushAttribute( const char* name, double value );
- /// If streaming, close the Element.
- void CloseElement();
-
- /// Add a text node.
- void PushText( const char* text, bool cdata=false );
- /// Add a text node from an integer.
- void PushText( int value );
- /// Add a text node from an unsigned.
- void PushText( unsigned value );
- /// Add a text node from a bool.
- void PushText( bool value );
- /// Add a text node from a float.
- void PushText( float value );
- /// Add a text node from a double.
- void PushText( double value );
-
- /// Add a comment
- void PushComment( const char* comment );
-
- void PushDeclaration( const char* value );
- void PushUnknown( const char* value );
-
- virtual bool VisitEnter( const XMLDocument& /*doc*/ );
- virtual bool VisitExit( const XMLDocument& /*doc*/ ) { return true; }
-
- virtual bool VisitEnter( const XMLElement& element, const XMLAttribute* attribute );
- virtual bool VisitExit( const XMLElement& element );
-
- virtual bool Visit( const XMLText& text );
- virtual bool Visit( const XMLComment& comment );
- virtual bool Visit( const XMLDeclaration& declaration );
- virtual bool Visit( const XMLUnknown& unknown );
-
- /**
- If in print to memory mode, return a pointer to
- the XML file in memory.
- */
- const char* CStr() const { return buffer.Mem(); }
- /**
- If in print to memory mode, return the size
- of the XML file in memory. (Note the size returned
- includes the terminating null.)
- */
- int CStrSize() const { return buffer.Size(); }
-
-private:
- void SealElement();
- void PrintSpace( int depth );
- void PrintString( const char*, bool restrictedEntitySet ); // prints out, after detecting entities.
- void Print( const char* format, ... );
-
- bool elementJustOpened;
- bool firstElement;
- FILE* fp;
- int depth;
- int textDepth;
- bool processEntities;
- bool compactMode;
-
- enum {
- ENTITY_RANGE = 64,
- BUF_SIZE = 200
- };
- bool entityFlag[ENTITY_RANGE];
- bool restrictedEntityFlag[ENTITY_RANGE];
-
- DynArray< const char*, 10 > stack;
- DynArray< char, 20 > buffer;
-#ifdef _MSC_VER
- DynArray< char, 20 > accumulator;
-#endif
-};
-
-
-} // tinyxml2
-
-
-#endif // TINYXML2_INCLUDED