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/*
* Copyright (C) 2007-2008 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_FORMATTER_H
#define BU_FORMATTER_H
#include "stream.h"
namespace Bu
{
class Formatter
{
public:
Formatter( Stream &rOut );
virtual ~Formatter();
typedef struct Fmt
{
enum Alignment
{
Left = 0,
Center = 1,
Right = 2
};
Fmt() :
uMinWidth( 0 ),
cFillChar(' '),
uRadix( 10 ),
uAlign( Right ),
bPlus( false ),
bCaps( true )
{
}
Fmt( unsigned int uMinWidth, unsigned int uRadix=10,
Alignment a=Right, bool bPlus=false, bool bCaps=true,
char cFill=' ') :
uMinWidth( uMinWidth ),
cFillChar(cFill),
uRadix( uRadix ),
uAlign( a ),
bPlus( bPlus ),
bCaps( bCaps )
{
}
Fmt( unsigned int uMinWidth, Alignment a,
unsigned int uRadix=10, bool bPlus=false, bool bCaps=true,
char cFill=' ') :
uMinWidth( uMinWidth ),
cFillChar(cFill),
uRadix( uRadix ),
uAlign( a ),
bPlus( bPlus ),
bCaps( bCaps )
{
}
static Fmt hex( unsigned int uWidth=0, bool bCaps=true )
{
return Fmt( uWidth, 16, Right, false, bCaps, '0' );
}
static Fmt oct( unsigned int uWidth=0 )
{
return Fmt( uWidth, 8, Right, false, false, '0' );
}
static Fmt bin( unsigned int uWidth=0 )
{
return Fmt( uWidth, 1, Right, false, false, '0' );
}
static Fmt ptr( bool bCaps=true )
{
return Fmt( sizeof(ptrdiff_t)*2, 16, Right, false, bCaps, '0' );
}
Fmt &width( unsigned int uWidth );
Fmt &fill( char cFill='0' );
Fmt &radix( unsigned int uRadix );
Fmt &align( Alignment eAlign );
Fmt &plus( bool bPlus=true );
Fmt &caps( bool bCaps=true );
Fmt &left();
Fmt &right();
Fmt ¢er();
unsigned char uMinWidth;
char cFillChar;
unsigned short uRadix : 6;
unsigned short uAlign : 2;
unsigned short bPlus : 1;
unsigned short bCaps : 1;
} Fmt;
void write( const Bu::FString &sStr );
void write( const void *sStr, int iLen );
void writeAligned( const Bu::FString &sStr );
void writeAligned( const char *sStr, int iLen );
void incIndent();
void decIndent();
void setIndent( uint8_t uLevel );
void clearIndent();
uint8_t getIndent() const { return uIndent; }
void setIndentChar( char cIndent );
char getIndentChar() const { return cIndent; }
void setFormat( const Fmt &f )
{
fLast = f;
bTempFmt = false;
}
void setTempFormat( const Fmt &f )
{
fLast = f;
bTempFmt = true;
}
void usedFormat()
{
if( bTempFmt )
fLast = Fmt();
}
template<typename type>
void ifmt( type i )
{
// This code is taken from Nango, hopefully we can make it better.
bool bNeg = i<0;
char cBase = fLast.bCaps?'A':'a';
char buf[sizeof(type)*8+1];
if( bNeg ) i = -i;
if( fLast.uRadix < 2 || fLast.uRadix > 36 )
{
usedFormat();
return;
}
for( int j = sizeof(type)*8; j >= 0; j-- )
{
int c = i%fLast.uRadix;
i /= fLast.uRadix;
buf[j] = (char)((c<10)?('0'+c):(cBase+c-10));
if( i == 0 )
{
if( bNeg ) buf[--j] = '-';
else if( fLast.bPlus ) buf[--j] = '+';
writeAligned( buf+j, sizeof(type)*8-j+1 );
return;
}
}
usedFormat();
}
template<typename type>
void ufmt( type i )
{
// This code is taken from Nango, hopefully we can make it better.
char buf[sizeof(type)*8+1];
char cBase = fLast.bCaps?'A':'a';
if( fLast.uRadix < 2 || fLast.uRadix > 36 )
{
usedFormat();
return;
}
for( int j = sizeof(type)*8; j >= 0; j-- )
{
int c = i%fLast.uRadix;
i /= fLast.uRadix;
buf[j] = (char)((c<10)?('0'+c):(cBase+c-10));
if( i == 0 )
{
if( fLast.bPlus ) buf[--j] = '+';
writeAligned( buf+j, sizeof(type)*8-j+1 );
return;
}
}
usedFormat();
}
template<typename type>
void ffmt( type f )
{
Bu::FString fTmp;
fTmp.format("%f", f );
// writeAligned("**make floats work**");
writeAligned( fTmp );
usedFormat();
}
enum Special
{
nl,
flush
};
void doFlush()
{
rOut.flush();
}
private:
Stream &rOut;
Fmt fLast;
bool bTempFmt;
uint8_t uIndent;
char cIndent;
};
typedef Formatter::Fmt Fmt;
Formatter &operator<<( Formatter &rOut, const Formatter::Fmt &f );
Formatter &operator<<( Formatter &rOut, Formatter::Special s );
Formatter &operator<<( Formatter &rOut, const char *sStr );
Formatter &operator<<( Formatter &rOut, char *sStr );
Formatter &operator<<( Formatter &rOut, const Bu::FString &sStr );
Formatter &operator<<( Formatter &rOut, signed char c );
Formatter &operator<<( Formatter &rOut, char c );
Formatter &operator<<( Formatter &rOut, unsigned char c );
Formatter &operator<<( Formatter &rOut, signed short i );
Formatter &operator<<( Formatter &rOut, unsigned short i );
Formatter &operator<<( Formatter &rOut, signed int i );
Formatter &operator<<( Formatter &rOut, unsigned int i );
Formatter &operator<<( Formatter &rOut, signed long i );
Formatter &operator<<( Formatter &rOut, unsigned long i );
Formatter &operator<<( Formatter &rOut, signed long long i );
Formatter &operator<<( Formatter &rOut, unsigned long long i );
Formatter &operator<<( Formatter &rOut, float f );
Formatter &operator<<( Formatter &rOut, double f );
Formatter &operator<<( Formatter &rOut, long double f );
Formatter &operator<<( Formatter &rOut, bool b );
template<typename type>
Formatter &operator<<( Formatter &rOut, const type *p )
{
return rOut << "0x" << Fmt::hex(sizeof(ptrdiff_t)*2) << (ptrdiff_t)(p);
}
};
#endif
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