Method ReadName

lesson7-Detection/src/utils/tinyxmlparser.cpp:401–436

One of TinyXML's more performance demanding functions. Try to keep the memory overhead down. The "assign" optimization removes over 10% of the execution time.

// "assign" optimization removes over 10% of the execution time.
//
const char* TiXmlBase::ReadName( const char* p, TIXML_STRING * name, TiXmlEncoding encoding )
{
	// Oddly, not supported on some comilers,
	//name->clear();
	// So use this:
	*name = "";
	assert( p );

	// Names start with letters or underscores.
	// Of course, in unicode, tinyxml has no idea what a letter *is*. The
	// algorithm is generous.
	//
	// After that, they can be letters, underscores, numbers,
	// hyphens, or colons. (Colons are valid ony for namespaces,
	// but tinyxml can't tell namespaces from names.)
	if (    p && *p 
		 && ( IsAlpha( (unsigned char) *p, encoding ) || *p == '_' ) )
	{
		const char* start = p;
		while(		p && *p
				&&	(		IsAlphaNum( (unsigned char ) *p, encoding ) 
						 || *p == '_'
						 || *p == '-'
						 || *p == '.'
						 || *p == ':' ) )
		{
			//(*name) += *p; // expensive
			++p;
		}
		if ( p-start > 0 ) {
			name->assign( start, p-start );
		}
		return p;
	}
	return 0;
}

const char* TiXmlBase::GetEntity( const char* p, char* value, int* length, TiXmlEncoding encoding )
{