lib/color-names.c

   1
   2 #include "c.h"
   3 #include "color-names.h"
   4
   5 struct ul_color_name {
   6         const char *name;
   7         const char *seq;
   8 };
   9
  10 /*
  11  * qsort/bsearch buddy
  12  */
  13 static int cmp_color_name(const void *a0, const void *b0)
  14 {
  15         const struct ul_color_name
  16                 *a = (const struct ul_color_name *) a0,
  17                 *b = (const struct ul_color_name *) b0;
  18         return strcmp(a->name, b->name);
  19 }
  20
  21 /*
  22  * Maintains human readable color names
  23  */
  24 const char *color_sequence_from_colorname(const char *str)
  25 {
  26         static const struct ul_color_name basic_schemes[] = {
  27                 { "black",      UL_COLOR_BLACK           },
  28                 { "blink",      UL_COLOR_BLINK           },
  29                 { "blue",       UL_COLOR_BLUE            },
  30                 { "bold",       UL_COLOR_BOLD            },
  31                 { "brown",      UL_COLOR_BROWN           },
  32                 { "cyan",       UL_COLOR_CYAN            },
  33                 { "darkgray",   UL_COLOR_DARK_GRAY       },
  34                 { "gray",       UL_COLOR_GRAY            },
  35                 { "green",      UL_COLOR_GREEN           },
  36                 { "halfbright", UL_COLOR_HALFBRIGHT      },
  37                 { "lightblue",  UL_COLOR_BOLD_BLUE       },
  38                 { "lightcyan",  UL_COLOR_BOLD_CYAN       },
  39                 { "lightgray,", UL_COLOR_GRAY            },
  40                 { "lightgreen", UL_COLOR_BOLD_GREEN      },
  41                 { "lightmagenta", UL_COLOR_BOLD_MAGENTA  },
  42                 { "lightred",   UL_COLOR_BOLD_RED        },
  43                 { "magenta",    UL_COLOR_MAGENTA         },
  44                 { "red",        UL_COLOR_RED             },
  45                 { "reset",      UL_COLOR_RESET,          },
  46                 { "reverse",    UL_COLOR_REVERSE         },
  47                 { "yellow",     UL_COLOR_BOLD_YELLOW     },
  48         };
  49         struct ul_color_name key = { .name = str }, *res;
  50
  51         if (!str)
  52                 return NULL;
  53
  54         res = bsearch(&key, basic_schemes, ARRAY_SIZE(basic_schemes),
  55                                 sizeof(struct ul_color_name),
  56                                 cmp_color_name);
  57         return res ? res->seq : NULL;
  58 }