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1 #ifndef TOML11_COLOR_HPP
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2 #define TOML11_COLOR_HPP
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3 #include <cstdint>
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4 #include <ostream>
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5
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6 #ifdef TOML11_COLORIZE_ERROR_MESSAGE
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7 #define TOML11_ERROR_MESSAGE_COLORIZED true
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8 #else
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9 #define TOML11_ERROR_MESSAGE_COLORIZED false
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10 #endif
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11
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12 namespace toml
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13 {
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14
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15 // put ANSI escape sequence to ostream
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16 namespace color_ansi
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17 {
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18 namespace detail
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19 {
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20
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21 inline int colorize_index()
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22 {
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23 static const int index = std::ios_base::xalloc();
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24 return index;
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25 }
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26
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27 // Control color mode globally
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28 class color_mode
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29 {
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30 public:
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31 inline void enable()
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32 {
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33 should_color_ = true;
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34 }
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35 inline void disable()
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36 {
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37 should_color_ = false;
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38 }
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39
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40 inline bool should_color() const
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41 {
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42 return should_color_;
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43 }
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44
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45 static color_mode& status()
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46 {
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47 static color_mode status_;
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48 return status_;
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49 }
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50
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51 private:
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52 bool should_color_ = false;
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53 };
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54
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55 } // detail
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56
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57 inline std::ostream& colorize(std::ostream& os)
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58 {
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59 // by default, it is zero.
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60 os.iword(detail::colorize_index()) = 1;
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61 return os;
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62 }
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63 inline std::ostream& nocolorize(std::ostream& os)
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64 {
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65 os.iword(detail::colorize_index()) = 0;
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66 return os;
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67 }
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68 inline std::ostream& reset (std::ostream& os)
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69 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[00m";} return os;}
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70 inline std::ostream& bold (std::ostream& os)
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71 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[01m";} return os;}
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72 inline std::ostream& grey (std::ostream& os)
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73 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[30m";} return os;}
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74 inline std::ostream& red (std::ostream& os)
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75 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[31m";} return os;}
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76 inline std::ostream& green (std::ostream& os)
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77 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[32m";} return os;}
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78 inline std::ostream& yellow (std::ostream& os)
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79 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[33m";} return os;}
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80 inline std::ostream& blue (std::ostream& os)
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81 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[34m";} return os;}
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82 inline std::ostream& magenta(std::ostream& os)
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83 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[35m";} return os;}
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84 inline std::ostream& cyan (std::ostream& os)
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85 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[36m";} return os;}
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86 inline std::ostream& white (std::ostream& os)
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87 {if(os.iword(detail::colorize_index()) == 1) {os << "\033[37m";} return os;}
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88
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89 inline void enable()
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90 {
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91 return detail::color_mode::status().enable();
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92 }
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93 inline void disable()
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94 {
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95 return detail::color_mode::status().disable();
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96 }
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97
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98 inline bool should_color()
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99 {
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100 return detail::color_mode::status().should_color();
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101 }
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102
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103 } // color_ansi
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104
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105 // ANSI escape sequence is the only and default colorization method currently
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106 namespace color = color_ansi;
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107
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108 } // toml
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109 #endif// TOML11_COLOR_HPP
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