pith/util.h

   1 /*
   2  * $Id: util.h 761 2007-10-23 22:35:18Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2013-2020 Eduardo Chappa
   6  * Copyright 2006 University of Washington
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * ========================================================================
  15  */
  16
  17 #ifndef PITH_UTIL_INCLUDED
  18 #define PITH_UTIL_INCLUDED
  19
  20
  21 #include "../pith/news.h"
  22
  23
  24 #define plural(n)       ((n) == 1 ? "" : "s")
  25
  26
  27 #define READONLY_FOLDER(S)  ((S) && (S)->rdonly && !IS_NEWS(S))
  28
  29 #define STREAMNAME(S)   (((S) && sp_fldr(S) && sp_fldr(S)[0])        \
  30                           ? sp_fldr(S)                               \
  31                           : ((S) && (S)->mailbox && (S)->mailbox[0]) \
  32                             ? (S)->mailbox                           \
  33                             : "?")
  34
  35
  36 /*
  37  * Simple, handy macro to determine if folder name is remote
  38  * (on an imap server)
  39  */
  40 #define IS_REMOTE(X)    (*(X) == '{' && *((X) + 1) && *((X) + 1) != '}' \
  41                          && strchr(((X) + 2), '}'))
  42
  43
  44 /* (0,0) is upper left */
  45 typedef struct screen_position {
  46     int row;
  47     int col;
  48 } Pos;
  49
  50
  51 #define SCREEN_FUN_NULL ((void (*)(struct pine *)) NULL)
  52
  53
  54 /* exported prototypes */
  55 int           *cpyint(int);
  56
  57 /* currently mandatory to implement stubs */
  58
  59 /* called when we detect a serious program error */
  60 void      alpine_panic(char *);
  61
  62 /* called when testing to see if panic state is in effect */
  63 int      panicking(void);
  64
  65 /* logs or prints a message then exits */
  66 void      exceptional_exit(char *, int);
  67
  68
  69 #endif /* PITH_UTIL_INCLUDED */