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feat: add (ANSI) terminal colorize operators

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ToruNiina
2019-11-13 17:24:51 +09:00
parent 1526b9feee
commit c2d0351e69
1 changed files with 78 additions and 0 deletions
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78
toml/color.hpp Normal file
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#ifndef TOML11_COLOR_HPP
#define TOML11_COLOR_HPP
#include <ostream>
#include <cstdint>
namespace toml
{
// put ANSI escape sequence to ostream
namespace color_ansi
{
namespace detail
{
inline int colorize_index()
{
static const int index = std::ios_base::xalloc();
return index;
}
} // detail
inline std::ostream& colorize(std::ostream& os)
{
// by default, it is zero.
os.iword(detail::colorize_index()) = 1;
return os;
}
inline std::ostream& nocolorize(std::ostream& os)
{
os.iword(detail::colorize_index()) = 0;
return os;
}
inline std::ostream& reset (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[00m";} return os;}
inline std::ostream& bold (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[01m";} return os;}
inline std::ostream& grey (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[30m";} return os;}
inline std::ostream& red (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[31m";} return os;}
inline std::ostream& green (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[32m";} return os;}
inline std::ostream& yellow (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[33m";} return os;}
inline std::ostream& blue (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[34m";} return os;}
inline std::ostream& magenta(std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[35m";} return os;}
inline std::ostream& cyan (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[36m";} return os;}
inline std::ostream& white (std::ostream& os)
{if(os.iword(detail::colorize_index()) == 1) {os << "\033[37m";} return os;}
} // color_ansi
// do nothing.
namespace nocolor
{
inline std::ostream& colorize (std::ostream& os) noexcept {return os;}
inline std::ostream& nocolorize(std::ostream& os) noexcept {return os;}
inline std::ostream& reset (std::ostream& os) noexcept {return os;}
inline std::ostream& bold (std::ostream& os) noexcept {return os;}
inline std::ostream& grey (std::ostream& os) noexcept {return os;}
inline std::ostream& red (std::ostream& os) noexcept {return os;}
inline std::ostream& green (std::ostream& os) noexcept {return os;}
inline std::ostream& yellow (std::ostream& os) noexcept {return os;}
inline std::ostream& blue (std::ostream& os) noexcept {return os;}
inline std::ostream& magenta (std::ostream& os) noexcept {return os;}
inline std::ostream& cyan (std::ostream& os) noexcept {return os;}
inline std::ostream& white (std::ostream& os) noexcept {return os;}
} // nocolor
#ifdef TOML11_COLORIZE_ERROR_MESSAGE
namespace color = color_ansi;
#else
namespace color = nocolor;
#endif
} // toml
#endif// TOML11_COLOR_HPP