JManip.cc

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#include <string>
#include <iostream>
#include <iomanip>
#include <vector>

#include "JLang/JManip.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

namespace {

  struct A {

    A(const double value) : value(value) {}

    friend inline std::ostream& operator<<(std::ostream& out, const A& object)
    {
       const JFormat format(out, getFormat<A>(JFormat_t(5, 2, std::ios::fixed | std::ios::showpos)));

       return out << format << object.value;
    }
    
    double value;
  };

  struct B {

    B(const double value) : value(value) {}

    friend inline std::ostream& operator<<(std::ostream& out, const B& object)
    {
       const JFormat format(out, getFormat<B>(JFormat_t(12, 3, std::ios::scientific | std::ios::showpos)));

       return out << format << object.value;
    }
    
    double value;
  };


  inline void print(std::ostream& out, const JFormat_t& format)
  {
    out << "(" << format.width << "," << format.precision << ")";
  }
}


/**
 * \file
 * Example program to test I/O manipulators.
 * \author mdejong
 */
int main(int argc, char* argv[])
{
  using namespace std;
  using namespace JPP;

  int     debug;

  try {

    JParser<> zap;

    zap['d'] = make_field(debug)           = 1;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "CENTER <" << CENTER(12)   << value << ">" << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "FILL   <" << FILL(12,'.') << value << ">" << FILL() << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "RIGHT  <" << RIGHT(12)    << value << ">" << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "LEFT   <" << LEFT(12)     << value << ">" << endl;
  }

  for (double value = 0.123456; value < 100000; value *= 10) {
    cout << "FIXED  <" << FIXED(12,6)  << value << ">" << endl;
  }


  {
    const double c = 12.34;

    const A a(c);
    const B b(c);

    cout << "A  "; print(cout, getFormat<A>()); cout << " <" << a << ">" << endl;
    cout << "c  "; cout << setw(5) << " ";      cout << " <" << c << ">" << endl;
    cout << "B  "; print(cout, getFormat<B>()); cout << " <" << b << ">" << endl;
    cout << "c  "; cout << setw(5) << " ";      cout << " <" << c << ">" << endl;

    setFormat<A>(JFormat_t(7, 3, std::ios::fixed));
    setFormat<B>(JFormat_t(7, 3, std::ios::fixed));

    cout << "A  "; print(cout, getFormat<A>()); cout << " <" << a << ">" << endl;
    cout << "c  "; cout << setw(5) << " ";      cout << " <" << c << ">" << endl;
    cout << "B  "; print(cout, getFormat<B>()); cout << " <" << b << ">" << endl;
    cout << "c  "; cout << setw(5) << " ";      cout << " <" << c << ">" << endl;
  }
}