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#include <bu/string.h>
#include <bu/formatter.h>
#include <bu/sio.h>
#include <bu/variant.h>
#include <bu/membuf.h>
#include <stdlib.h>
using namespace Bu;
class Fmter
{
public:
Fmter( const Bu::String &sSrc ) :
sSrc( sSrc )
{
}
template<typename T>
Fmter &arg( const T &x )
{
lParm.append( Pair( x ) );
return *this;
}
template<typename T>
Fmter &arg( const T &x, Bu::Formatter::Fmt f )
{
lParm.append( Pair( x, f ) );
return *this;
}
operator Bu::String() const
{
int iCount = lParm.getSize();
ParmList::const_iterator *aParm =
new ParmList::const_iterator[iCount];
{
int j = 0;
for( ParmList::const_iterator i = lParm.begin(); i; i++, j++ )
{
aParm[j] = i;
}
}
Bu::MemBuf mbOut;
Bu::Formatter f( mbOut );
for( Bu::String::const_iterator s = sSrc.begin(); s; s++ )
{
if( *s == '%' )
{
s++;
if( *s == '%' )
f << *s;
else
{
Bu::String sNum;
while( s && *s >= '0' && *s <= '9' )
{
sNum += *s;
s++;
}
int iIndex = strtol( sNum.getStr(), 0, 10 )-1;
if( iIndex < 0 || iIndex >= iCount )
{
delete[] aParm;
throw Bu::ExceptionBase(
"Argument index %d is outside of "
"valid range (1-%d).", iIndex+1, iCount
);
}
f << (*aParm[iIndex]).format << (*aParm[iIndex]).value;
if( s )
f << *s;
}
}
else
{
f << *s;
}
}
delete[] aParm;
return mbOut.getString();
}
private:
const Bu::String &sSrc;
class Pair
{
public:
template<typename T>
Pair( const T &v ) :
value( v )
{
}
template<typename T>
Pair( const T &v, Bu::Formatter::Fmt f ) :
value( v ),
format( f )
{
}
Bu::Variant value;
Bu::Formatter::Fmt format;
};
typedef Bu::List<Pair> ParmList;
ParmList lParm;
};
Bu::Formatter &operator<<( Bu::Formatter &f, const Fmter &r )
{
return f << (Bu::String)r;
}
int main()
{
sio << Fmter("A word is %1 and a number is %2 %1").
arg("Hello").arg(75, Fmt::hex() ).arg(" - ") << sio.nl;
}
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