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/******************************************************************************
*
* Copyright (C) 1997-2004 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#ifndef SCSTRING_H
#define SCSTRING_H
#include <stdlib.h>
class QRegExp;
/** This is an alternative implementation of QCString. It provides basically
* the same functions but uses less memory for administration. This class
* is just a wrapper around a plain C string requiring only 4 bytes "overhead".
* QCString features sharing of data and stores the string length, but
* requires 4 + 12 bytes for this (even for the empty string). As doxygen
* uses a LOT of string during a run it saves a lot of memory to use a
* more memory efficient implementation at the cost of relatively low
* runtime overhead.
*/
class SCString
{
public:
SCString() : m_data(0) {} // make null string
SCString( const SCString &s );
SCString( int size );
SCString( const char *str );
SCString( const char *str, uint maxlen );
~SCString();
SCString &operator=( const SCString &s );// deep copy
SCString &operator=( const char *str ); // deep copy
bool isNull() const;
bool isEmpty() const;
uint length() const;
uint size() const { return m_data ? length()+1 : 0; }
char * data() const { return m_data; }
bool resize( uint newlen );
bool truncate( uint pos );
bool fill( char c, int len = -1 );
SCString copy() const;
SCString &sprintf( const char *format, ... );
int find( char c, int index=0, bool cs=TRUE ) const;
int find( const char *str, int index=0, bool cs=TRUE ) const;
int find( const QRegExp &, int index=0 ) const;
int find( const QCString &str, int index, bool cs ) const;
int findRev( char c, int index=-1, bool cs=TRUE) const;
int findRev( const char *str, int index=-1, bool cs=TRUE) const;
int findRev( const QRegExp &, int index=-1 ) const;
int contains( char c, bool cs=TRUE ) const;
int contains( const char *str, bool cs=TRUE ) const;
int contains( const QRegExp & ) const;
bool stripPrefix(const char *prefix);
SCString left( uint len ) const;
SCString right( uint len ) const;
SCString mid( uint index, uint len=0xffffffff) const;
SCString lower() const;
SCString upper() const;
SCString stripWhiteSpace() const;
SCString simplifyWhiteSpace() const;
SCString &assign( const char *str );
SCString &insert( uint index, const char * );
SCString &insert( uint index, char );
SCString &append( const char *s );
SCString &prepend( const char *s );
SCString &remove( uint index, uint len );
SCString &replace( uint index, uint len, const char * );
SCString &replace( const QRegExp &, const char * );
short toShort( bool *ok=0 ) const;
ushort toUShort( bool *ok=0 ) const;
int toInt( bool *ok=0 ) const;
uint toUInt( bool *ok=0 ) const;
long toLong( bool *ok=0 ) const;
ulong toULong( bool *ok=0 ) const;
SCString &setNum( short );
SCString &setNum( ushort );
SCString &setNum( int );
SCString &setNum( uint );
SCString &setNum( long );
SCString &setNum( ulong );
QCString &setNum( float, char f='g', int prec=6 );
QCString &setNum( double, char f='g', int prec=6 );
operator const char *() const;
SCString &operator+=( const char *str );
SCString &operator+=( char c );
char &at( uint index ) const;
char &operator[]( int i ) const { return at(i); }
private:
static void msg_index( uint );
void duplicate( const SCString &s );
void duplicate( const char *str);
SCString &duplicate( const char *str, int);
char * m_data;
};
inline char &SCString::at( uint index ) const
{
return m_data[index];
}
inline void SCString::duplicate( const SCString &s )
{
if (!s.isEmpty())
{
uint l = strlen(s.data());
m_data = (char *)malloc(l+1);
if (m_data) memcpy(m_data,s.data(),l+1);
}
else
m_data=0;
}
inline void SCString::duplicate( const char *str)
{
if (str && str[0]!='\0')
{
uint l = strlen(str);
m_data = (char *)malloc(l+1);
if (m_data) memcpy(m_data,str,l+1);
}
else
m_data=0;
}
inline SCString &SCString::duplicate( const char *str, int)
{
if (m_data) free(m_data);
duplicate(str);
return *this;
}
#endif
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