tinyxml2最新版附加增删改查demo

/* 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. */ #include "tinyxml2.h" #include <new> // yes, this one new style header, is in the Android SDK. #if defined(ANDROID_NDK) || defined(__BORLANDC__) || defined(__QNXNTO__) # include <stddef.h> # include <stdarg.h> #else # include <cstddef> # include <cstdarg> #endif #if defined(_MSC_VER) && (_MSC_VER >= 1400 ) && (!defined WINCE) // Microsoft Visual Studio, version 2005 and higher. Not WinCE. /*int _snprintf_s( char *buffer, size_t sizeOfBuffer, size_t count, const char *format [, argument] ... );*/ static 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; } static inline int TIXML_VSNPRINTF( char* buffer, size_t size, const char* format, va_list va ) { int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va ); return result; } #define TIXML_VSCPRINTF _vscprintf #define TIXML_SSCANF sscanf_s #elif defined _MSC_VER // Microsoft Visual Studio 2003 and earlier or WinCE #define TIXML_SNPRINTF _snprintf #define TIXML_VSNPRINTF _vsnprintf #define TIXML_SSCANF sscanf #if (_MSC_VER < 1400 ) && (!defined WINCE) // Microsoft Visual Studio 2003 and not WinCE. #define TIXML_VSCPRINTF _vscprintf // VS2003's C runtime has this, but VC6 C runtime or WinCE SDK doesn't have. #else // Microsoft Visual Studio 2003 and earlier or WinCE. static inline int TIXML_VSCPRINTF( const char* format, va_list va ) { int len = 512; for (;;) { len = len*2; char* str = new char[len](); const int required = _vsnprintf(str, len, format, va); delete[] str; if ( required != -1 ) { TIXMLASSERT( required >= 0 ); len = required; break; } } TIXMLASSERT( len >= 0 ); return len; } #endif #else // GCC version 3 and higher //#warning( "Using sn* functions." ) #define TIXML_SNPRINTF snprintf #define TIXML_VSNPRINTF vsnprintf static inline int TIXML_VSCPRINTF( const char* format, va_list va ) { int len = vsnprintf( 0, 0, format, va ); TIXMLASSERT( len >= 0 ); return len; } #define TIXML_SSCANF sscanf #endif static const char LINE_FEED = (char)0x0a; // all line endings are normalized to LF static const char LF = LINE_FEED; static const char CARRIAGE_RETURN = (char)0x0d; // CR gets filtered out static const char CR = CARRIAGE_RETURN; static const char SINGLE_QUOTE = '\''; static const char DOUBLE_QUOTE = '\"'; // Bunch of unicode info at: // http://www.unicode.org/faq/utf_bom.html // ef bb bf (Microsoft "lead bytes") - designates UTF-8 static const unsigned char TIXML_UTF_LEAD_0 = 0xefU; static const unsigned char TIXML_UTF_LEAD_1 = 0xbbU; static const unsigned char TIXML_UTF_LEAD_2 = 0xbfU; namespace tinyxml2 { struct Entity { const char* pattern; int length; char value; }; static const int NUM_ENTITIES = 5; static const Entity entities[NUM_ENTITIES] = { { "quot", 4, DOUBLE_QUOTE }, { "amp", 3, '&' }, { "apos", 4, SINGLE_QUOTE }, { "lt", 2, '<' }, { "gt", 2, '>' } }; StrPair::~StrPair() { Reset(); } void StrPair::TransferTo( StrPair* other ) { if ( this == other ) { return; } // This in effect implements the assignment operator by "moving" // ownership (as in auto_ptr). TIXMLASSERT( other != 0 ); TIXMLASSERT( other->_flags == 0 ); TIXMLASSERT( other->_start == 0 ); TIXMLASSERT( other->_end == 0 ); other->Reset(); other->_flags = _flags; other->_start = _start; other->_end = _end; _flags = 0; _start = 0; _end = 0; } void StrPair::Reset() { if ( _flags & NEEDS_DELETE ) { delete [] _start; } _flags = 0; _start = 0; _end = 0; } void StrPair::SetStr( const char* str, int flags ) { TIXMLASSERT( str ); Reset(); size_t len = strlen( str ); TIXMLASSERT( _start == 0 ); _start = new char[ len+1 ]; memcpy( _start, str, len+1 ); _end = _start + len; _flags = flags | NEEDS_DELETE; } char* StrPair::ParseText( char* p, const char* endTag, int strFlags, int* curLineNumPtr ) { TIXMLASSERT( p ); TIXMLASSERT( endTag && *endTag ); TIXMLASSERT(curLineNumPtr); char* start = p; char endChar = *endTag; size_t length = strlen( endTag ); // Inner loop of text parsing. while ( *p ) { if ( *p == endChar && strncmp( p, endTag, length ) == 0 ) { Set( start, p, strFlags ); return p + length; } else if (*p == '\n') { ++(*curLineNumPtr); } ++p; TIXMLASSERT( p ); } return 0; } char* StrPair::ParseName( char* p ) { if ( !p || !(*p) ) { return 0; } if ( !XMLUtil::IsNameStartChar( *p ) ) { return 0; } char* const start = p; ++p; while ( *p && XMLUtil::IsNameChar( *p ) ) { ++p; } Set( start, p, 0 ); return p; } void StrPair::CollapseWhitespace() { // Adjusting _start would cause undefined behavior on delete[] TIXMLASSERT( ( _flags & NEEDS_DELETE ) == 0 ); // Trim leading space. _start = XMLUtil::SkipWhiteSpace( _start, 0 ); if ( *_start ) { const char* p = _start; // the read pointer char* q = _start; // the write pointer while( *p ) { if ( XMLUtil::IsWhiteSpace( *p )) { p = XMLUtil::SkipWhiteSpace( p, 0 ); if ( *p == 0 ) { break; // don't write to q; this trims the trailing space. } *q = ' '; ++q; } *q = *p; ++q; ++p; } *q = 0; } } const char* StrPair::GetStr() { TIXMLASSERT( _start ); TIXMLASSERT( _end ); if ( _flags & NEEDS_FLUSH ) { *_end = 0; _flags ^= NEEDS_FLUSH; if ( _flags ) { const char* p = _start; // the read pointer char* q = _start; // the write pointer while( p < _end ) { if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == CR ) { // CR-LF pair becomes LF // CR alone becomes LF // LF-CR becomes LF if ( *(p+1) == LF ) { p += 2; } else { ++p; } *q = LF; ++q; } else if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == LF ) { if ( *(p+1) == CR ) { p += 2; } else { ++p; } *q