format_print.h

   1 #ifndef _FORMAT_PRINT_H
   2 #define _FORMAT_PRINT_H
   3
   4 struct format_option {
   5         union {
   6                 /* NULL is treated like "" */
   7                 const char *fo_str;
   8                 int fo_int;
   9                 /* [h:]mm:ss. can be negative */
  10                 int fo_time;
  11         };
  12         /* set to 1 if you want to disable printing */
  13         unsigned int empty : 1;
  14         enum { FO_STR, FO_INT, FO_TIME } type;
  15         char ch;
  16 };
  17
  18 #define DEF_FO_STR(ch)  { { .fo_str  = NULL }, 0, FO_STR,  ch }
  19 #define DEF_FO_INT(ch)  { { .fo_int  = 0    }, 0, FO_INT,  ch }
  20 #define DEF_FO_TIME(ch) { { .fo_time = 0    }, 0, FO_TIME, ch }
  21 #define DEF_FO_END      { { .fo_str  = NULL }, 0, 0,       0  }
  22
  23 int format_print(char *str, int width, const char *format, const struct format_option *fopts);
  24 int format_valid(const char *format);
  25
  26 #endif