Format.hpp

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#ifndef BLOCXX_FORMAT_HPP
#define BLOCXX_FORMAT_HPP
#include "blocxx/BLOCXX_config.h"
#include <iosfwd>
#include "blocxx/StringStream.hpp"
#include "blocxx/String.hpp"

namespace BLOCXX_NAMESPACE
{

//  Format class declaration  -----------------------------------------------//
class BLOCXX_COMMON_API Format
{
public:
   
   operator String() const;
   String toString() const;
   const char* c_str() const;
   // generic templated constructors
   template<typename A>
   Format(const char* ca, const A& a);
   template<typename A, typename B>
   Format(const char* ca, const A& a, const B& b);
   template<typename A, typename B, typename C>
   Format(const char* ca, const A& a, const B& b, const C& c);
   template<typename A, typename B, typename C, typename D>
   Format(const char* ca, const A& a, const B& b, const C& c, const D& d);
   template<typename A, typename B, typename C, typename D, typename E>
      Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e);
   template<typename A, typename B, typename C, typename D, typename E, typename F>
   Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f);
   template<typename A, typename B, typename C, typename D, typename E, typename F, typename G>
   Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g);
   template<typename A, typename B, typename C, typename D, typename E, typename F, typename G, typename H>
   Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g, const H& h);
   template<typename A, typename B, typename C, typename D, typename E, typename F, typename G, typename H, typename I>
   Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g, const H& h, const I& i);
   // These specific versions are to help prevent template bloat
   Format(const char* ca, const String& a);
   Format(const char* ca, const String& a, const String& b);
   Format(const char* ca, const String& a, const String& b, const String& c);
private:
   OStringStream oss;
   char process(String& f, char c0);
   template<typename T> void put(const T& t);
   // These are to help prevent template bloat
   void put (const String& t);
   void put (char t);
   void put (unsigned char t);
   void put (short t);
   void put (unsigned short t);
   void put (int t);
   void put (unsigned int t);
   void put (long t);
   void put (unsigned long t);
   void put (long long t);
   void put (unsigned long long t);
public:
   friend BLOCXX_COMMON_API std::ostream& operator<<(std::ostream& os, const Format& f);
}; // class Format

template<typename T>
void Format::put(const T& t)
{ // t is inserted into oss
   if (!oss.good())
      return;
   oss << t;
}

template<typename A>
Format::Format(const char* ca, const A& a) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '1'))
      {
         case '1': put(a); break;
      }
   }
}
template<typename A, typename B>
Format::Format(const char* ca, const A& a, const B& b) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '2'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
      }
   }
}
template<typename A, typename B, typename C>
Format::Format(const char* ca, const A& a, const B& b, const C& c) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '3'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
      }
   }
}
template<typename A, typename B, typename C, typename D>
Format::Format(const char* ca, const A& a, const B& b, const C& c, const D& d) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '4'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
      }
   }
}
template<typename A, typename B, typename C, typename D, typename E>
Format::	Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '5'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
         case '5': put(e); break;
      }
   }
}
template<typename A, typename B, typename C, typename D, typename E, typename F>
Format::Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '6'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
         case '5': put(e); break;
         case '6': put(f); break;
      }
   }
}
template<typename A, typename B, typename C, typename D, typename E, typename F, typename G>
Format::Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '7'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
         case '5': put(e); break;
         case '6': put(f); break;
         case '7': put(g); break;
      }
   }
}
template<typename A, typename B, typename C, typename D, typename E, typename F, typename G, typename H>
Format::Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g, const H& h) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '8'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
         case '5': put(e); break;
         case '6': put(f); break;
         case '7': put(g); break;
         case '8': put(h); break;
      }
   }
}
template<typename A, typename B, typename C, typename D, typename E, typename F, typename G, typename H, typename I>
Format::Format(const char* ca, const A& a, const B& b, const C& c, const D& d, const E& e, const F& f, const G& g, const H& h, const I& i) : oss()
{
   String fmt(ca);
   while (!fmt.empty())
   {
      switch (process(fmt, '9'))
      {
         case '1': put(a); break;
         case '2': put(b); break;
         case '3': put(c); break;
         case '4': put(d); break;
         case '5': put(e); break;
         case '6': put(f); break;
         case '7': put(g); break;
         case '8': put(h); break;
         case '9': put(i); break;
      }
   }
}

} // end namespace BLOCXX_NAMESPACE

#endif