format_print.h

   1 /*
   2  * Copyright 2004-2005 Timo Hirvonen
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17  * 02111-1307, USA.
  18  */
  19
  20 #ifndef _FORMAT_PRINT_H
  21 #define _FORMAT_PRINT_H
  22
  23 struct format_option {
  24         union {
  25                 /* NULL is treated like "" */
  26                 const char *fo_str;
  27                 int fo_int;
  28                 /* [h:]mm:ss. can be negative */
  29                 int fo_time;
  30         };
  31         /* set to 1 if you want to disable printing */
  32         unsigned int empty : 1;
  33         enum { FO_STR, FO_INT, FO_TIME } type;
  34         char ch;
  35 };
  36
  37 #define DEF_FO_STR(ch)  { { .fo_str  = NULL }, 0, FO_STR,  ch }
  38 #define DEF_FO_INT(ch)  { { .fo_int  = 0    }, 0, FO_INT,  ch }
  39 #define DEF_FO_TIME(ch) { { .fo_time = 0    }, 0, FO_TIME, ch }
  40 #define DEF_FO_END      { { .fo_str  = NULL }, 0, 0,       0  }
  41
  42 int format_print(char *str, int width, const char *format, const struct format_option *fopts);
  43 int format_valid(const char *format);
  44
  45 #endif