Big changes

engine/utils/str.h

@@ -0,0 +1,139 @@
+#ifndef CSTR_H
+#define CSTR_H
+
+#include <stdlib.h>
+#include <memory.h>
+#include <string.h>
+
+class Str
+{
+public:
+	Str()
+	{
+		m_Text = NULL;
+	}
+
+	Str( const Str& source )
+	{
+		m_Text = NULL;
+		if ( source.m_Text != NULL )
+			Copy( source.m_Text );
+	}
+	
+	Str( const char* source )
+	{
+		m_Text = NULL;
+		if ( source != NULL )
+			Copy( source );
+	}
+	
+	~Str()
+	{
+		Free();
+	}
+	
+	void Free()
+	{
+		if ( m_Text != NULL ) 
+		{
+			free( m_Text );
+			m_Text = NULL;
+		}
+	}
+	
+	void Copy( const char* source )
+	{
+		Reserve( strlen( source ) + 1 );
+		strcpy( m_Text, source );
+	}
+	
+	void Reserve( unsigned int size )
+	{
+		if (m_Text)
+		{
+			free( m_Text );
+		}	
+
+		m_Text = (char*)malloc( size );
+	}
+	
+	Str& operator=( const char* source )
+	{
+		Free();
+
+		if ( source != NULL )
+			Copy( source );
+
+		return *this;
+	}
+
+	int Compare( const Str& string ) const
+	{
+		if ( m_Text == NULL && string.m_Text == NULL )
+			return 0;
+
+		if ( m_Text == NULL || string.m_Text == NULL )
+			return -1;
+
+		return strcmp( m_Text, string.m_Text );
+	}
+
+	int Compare( const char* string ) const
+	{
+		if ( m_Text == NULL && string == NULL )
+			return 0;
+
+		if ( m_Text == NULL || string == NULL )
+			return -1;
+
+		return strcmp( m_Text, string );
+	}
+	
+	friend bool operator==( const Str& stringA, const Str& stringB )
+	{
+		return stringA.Compare( stringB ) == 0;
+	}
+
+	friend bool operator==( const Str& stringA, const char* stringB )
+	{
+		return stringA.Compare( stringB ) == 0;
+	}
+
+	friend bool operator==( const char* stringA, const Str& stringB )
+	{
+		return stringB.Compare( stringA ) == 0;
+	}
+
+	char& operator[]( const size_t idx )
+	{
+		return m_Text[idx];
+	}
+
+	void Clear()
+	{
+		Free();
+	}
+
+	bool IsEmpty()
+	{
+		return GetLength() == 0;
+	}
+
+	unsigned int GetLength()
+	{
+		if ( m_Text == NULL )
+			return 0;
+		
+		return strlen( m_Text );
+	}
+
+	const char* GetText()
+	{
+		return (const char*)m_Text;
+	}
+	
+private:
+	char* m_Text;
+};
+
+#endif // !CSTR_H