src/print.h

   1 /*!@file
   2   \brief   Macros for printing unicode to streams
   3   \details Standardized method of handling unicodes in warnings, and errors
   4   \author  Jordan Lavatai
   5   \date    Aug 2016
   6   ----------------------------------------------------------------------------*/
   7 /* u8 print macros */
   8 #ifndef _PRINT_H_
   9 #define _PRINT_H_
  10 #include <unistdio.h>
  11 #ifndef DEBUG
  12 #define DEBUG 0
  13 #endif
  14 /* wprintf callback, may be defined prior to include
  15    or undefined and redefined later
  16 */
  17 #ifndef wprintf_callback
  18 #define wprintf_callback(...) do {              \
  19   } while (0)
  20 #endif
  21 /* eprintf callback, may be defined prior to include
  22    or undefined and redefined later
  23 */
  24 #ifndef eprintf_callback
  25 #define eprintf_callback(...) do {              \
  26   } while (0)
  27 #endif
  28
  29 /* Print a unicode string */
  30 #define uprintf(...) do {                       \
  31     ulc_fprintf(stdout, __VA_ARGS__);           \
  32   } while (0)
  33 /* Print a unicode string to a filestream */
  34 #define ufprintf(_STREAM,...) do {              \
  35     ulc_fprintf(_STREAM, __VA_ARGS__);          \
  36   } while (0)
  37 /* Print a warning message to stderr, then do_warn */
  38 #define wprintf(...) do {                       \
  39     ufprintf(stderr, __VA_ARGS__);              \
  40     wprintf_callback(__VA_ARGS__);              \
  41   } while (0)
  42 /* Print an error message to stderr, then do_error */
  43 #define eprintf(...) do {                       \
  44     ufprintf(stderr, __VA_ARGS__);              \
  45     eprintf_callback(__VA_ARGS_);               \
  46   } while (0)
  47 /* Print only when the provided boolean is true */
  48 #define bprintf(_BOOL,...) do {                 \
  49     if (_BOOL)                                  \
  50       ufprintf(stdout, __VA_ARGS__);            \
  51   } while (0)
  52 /* Print only when DEBUG is set to a value */
  53 #define dprintf(...) do {                       \
  54     bprintf(DEBUG, __VA_ARGS__);                \
  55   } while (0)
  56 #endif