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/*
 * Calcurse - text-based organizer
 *
 * Copyright (c) 2004-2011 calcurse Development Team <misc@calcurse.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the
 *        following disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the
 *        following disclaimer in the documentation and/or other
 *        materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Send your feedback or comments to : misc@calcurse.org
 * Calcurse home page : http://calcurse.org
 *
 */

#ifndef CALCURSE_H
#define CALCURSE_H

#include "config.h"

#ifdef HAVE_NCURSES_H
#  include <ncurses.h>
#elif defined HAVE_NCURSES_NCURSES_H
#  include <ncurses/ncurses.h>
#elif defined HAVE_NCURSESW_NCURSES_H
#  include <ncursesw/ncurses.h>
#else
#  error "Missing ncurses header. Aborting..."
#endif

#include <pthread.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>

#include "llist.h"
#include "htable.h"
#include "llist_ts.h"

/* Internationalization. */
#if ENABLE_NLS
#  include <locale.h>
#  include <libintl.h>
#  undef _
#  define _(String) gettext(String)
#  ifdef gettext_noop
#    define N_(String) gettext_noop(String)
#  else
#    define N_(String) (String)
#  endif
#else /* NLS disabled */
#  define _(String) (String)
#  define N_(String) (String)
#  define textdomain(String) (String)
#  define gettext(String) (String)
#  define dgettext(String) (String)
#  define dcgettext(String) (String)
#  define bindtextdomain(String) (String)
#  define bind_textdomain_codeset(Domain,Codeset) (Codeset)
#endif /* ENABLE_NLS */

/* Paths configuration. */
#define DIR_NAME         ".calcurse/"
#define TODO_PATH_NAME   "todo"
#define APTS_PATH_NAME   "apts"
#define CONF_PATH_NAME   "conf"
#define KEYS_PATH_NAME   "keys"
#define CPID_PATH_NAME   ".calcurse.pid"
#define DPID_PATH_NAME   ".daemon.pid"
#define DLOG_PATH_NAME   "daemon.log"
#define NOTES_DIR_NAME   "notes/"

#define TODO_PATH        DIR_NAME TODO_PATH_NAME
#define APTS_PATH        DIR_NAME APTS_PATH_NAME
#define CONF_PATH        DIR_NAME CONF_PATH_NAME
#define KEYS_PATH        DIR_NAME KEYS_PATH_NAME
#define CPID_PATH        DIR_NAME CPID_PATH_NAME
#define DLOG_PATH        DIR_NAME DLOG_PATH_NAME
#define DPID_PATH        DIR_NAME DPID_PATH_NAME
#define NOTES_DIR        DIR_NAME NOTES_DIR_NAME

#define ATTR_FALSE    0
#define ATTR_TRUE     1
#define ATTR_LOWEST   2
#define ATTR_LOW      3
#define ATTR_MIDDLE   4
#define ATTR_HIGH     5
#define ATTR_HIGHEST  6

#define STATUSHEIGHT  2
#define MAX_NOTESIZ   40
#define TMPEXTSIZ     6

/* Format for appointment hours is: HH:MM */
#define HRMIN_SIZE 6

/* Maximum number of colors available. */
#define NBUSERCOLORS  6

/* Side bar width acceptable boundaries. */
#define SBARMINWIDTH     32
#define SBARMAXWIDTHPERC 50

/* Related to date manipulation. */
#define YEARINMONTHS    12
#define YEARINDAYS      365
#define TM_YEAR_BASE    1900

#define WEEKINDAYS      7
#define DAYINHOURS      24
#define HOURINMIN       60
#define MININSEC        60

#define WEEKINHOURS     (WEEKINDAYS * DAYINHOURS)
#define WEEKINMIN       (WEEKINHOURS * HOURINMIN)
#define WEEKINSEC       (WEEKINMIN * MININSEC)
#define DAYINMIN        (DAYINHOURS * HOURINMIN)
#define DAYINSEC        (DAYINMIN * MININSEC)
#define HOURINSEC       (HOURINMIN * MININSEC)

/* Calendar window. */
#define CALHEIGHT       12

/* Key definitions. */
#define CTRLVAL                 0x1F
#define CTRL(x)                 ((x) & CTRLVAL)
#define ESCAPE                  27
#define TAB                     9
#define SPACE                   32

#define KEYS_KEYLEN         3 /* length of each keybinding */
#define KEYS_LABELEN        8 /* length of command description */
#define KEYS_CMDS_PER_LINE  6 /* max number of commands per line */

/* Size of the hash table the note garbage collector uses. */
#define NOTE_GC_HSIZE 1024

#define ERROR_MSG(...) do {                                                   \
  char msg[BUFSIZ];                                                           \
  int len;                                                                    \
                                                                              \
  len = snprintf (msg, BUFSIZ, "%s: %d: ", __FILE__, __LINE__);               \
  (void)snprintf (msg + len, BUFSIZ - len, __VA_ARGS__);                      \
  if (ui_mode == UI_CURSES)                                                   \
    fatalbox (msg);                                                           \
  else                                                                        \
    (void)fprintf (stderr, "%s\n", msg);                                      \
} while (0)

#define WARN_MSG(...) do {                                                    \
  char msg[BUFSIZ];                                                           \
                                                                              \
  (void)snprintf (msg, BUFSIZ, __VA_ARGS__);                                  \
  if (ui_mode == UI_CURSES)                                                   \
    warnbox (msg);                                                            \
  else                                                                        \
    (void)fprintf (stderr, "%s\n", msg);                                      \
} while (0)

#define EXIT(...) do {                                                        \
  ERROR_MSG(__VA_ARGS__);                                                     \
  if (ui_mode == UI_CURSES)                                                   \
    exit_calcurse (EXIT_FAILURE);                                             \
  else                                                                        \
    exit (EXIT_FAILURE);                                                      \
} while (0)

#define EXIT_IF(cond, ...) do {                                               \
  if ((cond))                                                                 \
    EXIT(__VA_ARGS__);                                                        \
} while (0)

#define RETURN_IF(cond, ...) do {                                             \
  if ((cond))                                                                 \
    {                                                                         \
      ERROR_MSG(__VA_ARGS__);                                                 \
      return;                                                                 \
    }                                                                         \
} while (0)

#define RETVAL_IF(cond, val, ...) do {                                        \
  if ((cond))                                                                 \
    {                                                                         \
      ERROR_MSG(__VA_ARGS__);                                                 \
      return (val);                                                           \
    }                                                                         \
} while (0)

#define STRING_BUILD(str) {str, sizeof (str) - 1}
#define STRINGIFY(x)  #x
#define TOSTRING(x)   STRINGIFY(x)
#define __FILE_POS__   __FILE__ ":" TOSTRING(__LINE__)

#define UTF8_MAXLEN 6
#define UTF8_LENGTH(ch) ((unsigned char)ch >= 0xFC ? 6 : \
    ((unsigned char)ch >= 0xF8 ? 5 : \
    ((unsigned char)ch >= 0xF0 ? 4 : \
    ((unsigned char)ch >= 0xE0 ? 3 : \
    ((unsigned char)ch >= 0xC0 ? 2 : 1)))))
#define UTF8_ISCONT(ch) ((unsigned char)ch >= 0x80 && \
    (unsigned char)ch <= 0xBF)

#define MAX(x,y) ((x)>(y)?(x):(y))
#define MIN(x,y) ((x)<(y)?(x):(y))

/* General configuration variables. */
struct conf {
  unsigned   auto_save;
  unsigned   auto_gc;
  unsigned   periodic_save;
  unsigned   confirm_quit;
  unsigned   confirm_delete;
  unsigned   skip_system_dialogs;
  unsigned   skip_progress_bar;
  char      *editor;
  char      *pager;
  char       output_datefmt[BUFSIZ];  /* format for displaying date */
  int        input_datefmt;           /* format for reading date */
};

/* Daemon-related configuration. */
struct dmon_conf {
  unsigned  enable;   /* launch daemon automatically when exiting */
  unsigned  log;      /* log daemon activity */
};

struct string {
  const char   *str;
  const int     len;
};

enum datefmt {
  DATEFMT_MMDDYYYY = 1,
  DATEFMT_DDMMYYYY,
  DATEFMT_YYYYMMDD,
  DATEFMT_ISO,
  DATE_FORMATS
};

#define DATEFMT(datefmt) (datefmt == DATEFMT_MMDDYYYY ? "%m/%d/%Y" :          \
    (datefmt == DATEFMT_DDMMYYYY ? "%d/%m/%Y" :                               \
    (datefmt == DATEFMT_YYYYMMDD ? "%Y/%m/%d" : "%Y-%m-%d")))

#define DATEFMT_DESC(datefmt) (datefmt == DATEFMT_MMDDYYYY ?                  \
    _("mm/dd/yyyy") : (datefmt == DATEFMT_DDMMYYYY ? _("dd/mm/yyyy") :        \
    (datefmt == DATEFMT_YYYYMMDD ? _("yyyy/mm/dd") : _("yyyy-mm-dd"))))

struct date {
  unsigned dd;
  unsigned mm;
  unsigned yyyy;
};

/* Appointment definition. */
struct apoint
{
  long           start;   /* seconds since 1 jan 1970 */
  long           dur;     /* duration of the appointment in seconds */

#define APOINT_NULL      0x0
#define APOINT_NOTIFY    0x1  /* Item needs to be notified */
#define APOINT_NOTIFIED  0x2  /* Item was already notified */
  int            state;

  char          *mesg;
  char          *note;
};

/* Event definition. */
struct event {
  int           id;    /* event identifier */
  long          day;   /* seconds since 1 jan 1970 */
  char         *mesg;
  char         *note;
};

/* Todo item definition. */
struct todo {
  char         *mesg;
  int           id;
  char         *note;
};

/* Number of items in current day. */
struct day_items_nb {
  unsigned nb_events;
  unsigned nb_apoints;
};

/* Generic item description (to hold appointments, events...). */
struct day_item {
  long             start;    /* seconds since 1 jan 1970 */
  long             appt_dur; /* appointment duration in seconds */
  int              type;     /* (recursive or normal) event or appointment */
  int              evnt_id;  /* event identifier */
  int              appt_pos; /* real position in recurrent list */
  char             state;    /* appointment state */
  char            *mesg;     /* item description */
  char            *note;     /* note attached to item */
};

struct excp {
  long         st;    /* beggining of the considered day, in seconds */
};

enum recur_type {
  RECUR_NO,
  RECUR_DAILY,
  RECUR_WEEKLY,
  RECUR_MONTHLY,
  RECUR_YEARLY,
  RECUR_TYPES
};

/* To describe an item's repetition. */
struct rpt {
  enum recur_type  type;  /* repetition type */
  int              freq;  /* repetition frequence */
  long             until; /* ending date for repeated event */
};

/* Recurrent appointment definition. */
struct recur_apoint {
  struct rpt           *rpt;   /* information about repetition */
  llist_t               exc;   /* days when the item should not be repeated */
  long                  start; /* beggining of the appointment */
  long                  dur;   /* duration of the appointment */
  char                  state; /* 8 bits to store item state */
  char                 *mesg;  /* appointment description */
  char                 *note;  /* note attached to appointment */
};

/* Reccurent event definition. */
struct recur_event {
  struct rpt          *rpt;  /* information about repetition */
  llist_t              exc;  /* days when the item should not be repeated */
  int                  id;   /* event type */
  long                 day;  /* day at which event occurs */
  char                *mesg; /* event description */
  char                *note; /* note attached to event */
};

struct notify_app {
  long             time;
  int              got_app;
  char            *txt;
  char             state;
  pthread_mutex_t  mutex;
};

struct io_file {
  FILE *fd;
  char  name[BUFSIZ];
};

/* Available keys. */
enum key {
  KEY_GENERIC_CANCEL,
  KEY_GENERIC_SELECT,
  KEY_GENERIC_CREDITS,
  KEY_GENERIC_HELP,
  KEY_GENERIC_QUIT,
  KEY_GENERIC_SAVE,
  KEY_GENERIC_CUT,
  KEY_GENERIC_PASTE,
  KEY_GENERIC_CHANGE_VIEW,
  KEY_GENERIC_IMPORT,
  KEY_GENERIC_EXPORT,
  KEY_GENERIC_GOTO,
  KEY_GENERIC_OTHER_CMD,
  KEY_GENERIC_CONFIG_MENU,
  KEY_GENERIC_REDRAW,
  KEY_GENERIC_ADD_APPT,
  KEY_GENERIC_ADD_TODO,
  KEY_GENERIC_NEXT_DAY,
  KEY_GENERIC_PREV_DAY,
  KEY_GENERIC_NEXT_WEEK,
  KEY_GENERIC_PREV_WEEK,
  KEY_GENERIC_SCROLL_DOWN,
  KEY_GENERIC_SCROLL_UP,
  KEY_GENERIC_GOTO_TODAY,

  KEY_MOVE_RIGHT,
  KEY_MOVE_LEFT,
  KEY_MOVE_DOWN,
  KEY_MOVE_UP,
  KEY_START_OF_WEEK,
  KEY_END_OF_WEEK,
  KEY_ADD_ITEM,
  KEY_DEL_ITEM,
  KEY_EDIT_ITEM,
  KEY_VIEW_ITEM,
  KEY_PIPE_ITEM,
  KEY_FLAG_ITEM,
  KEY_REPEAT_ITEM,
  KEY_EDIT_NOTE,
  KEY_VIEW_NOTE,
  KEY_RAISE_PRIORITY,
  KEY_LOWER_PRIORITY,

  NBKEYS,
  KEY_UNDEF
};

/* To describe a key binding. */
struct binding {
  char      *label;
  enum key   action;
};

enum win {
  CAL,
  APP,
  TOD,
  NOT,
  STA,
  NBWINS
};

#define FLAG_CAL (1 << CAL)
#define FLAG_APP (1 << APP)
#define FLAG_TOD (1 << TOD)
#define FLAG_NOT (1 << NOT)
#define FLAG_STA (1 << STA)
#define FLAG_ALL ((1 << NBWINS) - 1)

enum ui_mode {
  UI_CURSES,
  UI_CMDLINE,
  UI_MODES
};

/* Generic window structure. */
struct window {
  WINDOW   *p;  /* pointer to window */
  unsigned  w;  /* width */
  unsigned  h;  /* height */
  int       x;  /* x position */
  int       y;  /* y position */
};

/* Generic scrolling window structure. */
struct scrollwin {
  struct window  win;
  struct window  pad;
  unsigned       first_visible_line;
  unsigned       total_lines;
  char           label[BUFSIZ];
};

/* Pad structure to handle scrolling. */
struct pad {
  int     width;
  int     length;
  int     first_onscreen; /* first line to be displayed inside window */
  WINDOW *ptrwin;         /* pointer to the pad window */
};

/* Notification bar definition. */
struct nbar {
  unsigned         show;             /* display or hide the notify-bar */
  int              cntdwn;           /* warn when time left before next app
                                        becomes lesser than cntdwn */
  char             datefmt[BUFSIZ];  /* format for displaying date */
  char             timefmt[BUFSIZ];  /* format for displaying time */
  char             cmd[BUFSIZ];      /* notification command */
  char            *shell;            /* user shell to launch notif. cmd */
  unsigned         notify_all;       /* notify all appointments */
  pthread_mutex_t  mutex;
};

/* Available types of items. */
enum item_type {
  RECUR_EVNT = 1,
  EVNT,
  RECUR_APPT,
  APPT,
  MAX_TYPES = APPT
};

/* Flags used to adapt processing when erasing an item. */
enum eraseflg {
  ERASE_DONT_FORCE,
  ERASE_FORCE,
  ERASE_FORCE_ONLY_NOTE,
  ERASE_CUT
};

/* Return codes for the getstring() function. */
enum getstr {
  GETSTRING_VALID,
  GETSTRING_ESC,   /* user pressed escape to cancel editing. */
  GETSTRING_RET    /* return was pressed without entering any text. */
};

/* Week days. */
enum wday {
  SUNDAY,
  MONDAY,
  TUESDAY,
  WEDNESDAY,
  THURSDAY,
  FRIDAY,
  SATURDAY,
  WDAYS
};

/* Possible movements inside calendar. */
enum move {
  UP,
  DOWN,
  LEFT,
  RIGHT,
  WEEK_START,
  WEEK_END,
  MOVES
};

/* Available color pairs. */
enum {
  COLR_RED = 1,
  COLR_GREEN,
  COLR_YELLOW,
  COLR_BLUE,
  COLR_MAGENTA,
  COLR_CYAN,
  COLR_DEFAULT,
  COLR_HIGH,
  COLR_CUSTOM
};

/* Available import types. */
enum import_type {
  IO_IMPORT_ICAL,
  IO_IMPORT_NBTYPES
};

/* Available export types. */
enum export_type {
  IO_EXPORT_ICAL,
  IO_EXPORT_PCAL,
  IO_EXPORT_NBTYPES
};

/* To customize the display when saving data. */
enum save_display {
  IO_SAVE_DISPLAY_BAR,
  IO_SAVE_DISPLAY_MARK,
  IO_SAVE_DISPLAY_NONE
};

/* apoint.c */
extern llist_ts_t alist_p;
void               apoint_free_bkp (void);
void               apoint_llist_init (void);
void               apoint_llist_free (void);
void               apoint_hilt_set (int);
void               apoint_hilt_decrease (int);
void               apoint_hilt_increase (int);
int                apoint_hilt (void);
struct apoint     *apoint_new (char *, char *, long, long, char);
void               apoint_add (void);
void               apoint_delete (struct conf *, unsigned *, unsigned *);
int                apoint_cut (unsigned *, unsigned *);
void               apoint_paste (unsigned *, unsigned *, int);
unsigned           apoint_inday (struct apoint *, long);
void               apoint_sec2str (struct apoint *, int, long, char *, char *);
void               apoint_write (struct apoint *, FILE *);
struct apoint     *apoint_scan (FILE *, struct tm, struct tm, char, char *);
struct apoint     *apoint_get (long, int);
void               apoint_delete_bynum (long, unsigned, enum eraseflg);
void               apoint_scroll_pad_down (int, int);
void               apoint_scroll_pad_up (int);
struct notify_app *apoint_check_next (struct notify_app *, long);
struct apoint     *apoint_recur_s2apoint_s (struct recur_apoint *);
void               apoint_switch_notify (void);
void               apoint_update_panel (int);
void               apoint_paste_item (void);

/* args.c */
int parse_args (int, char **, struct conf *);

/* calendar.c */
void          calendar_view_next (void);
void          calendar_view_prev (void);
void          calendar_set_view (int);
int           calendar_get_view (void);
void          calendar_start_date_thread (void);
void          calendar_stop_date_thread (void);
void          calendar_set_current_date (void);
void          calendar_set_first_day_of_week (enum wday);
void          calendar_change_first_day_of_week (void);
unsigned      calendar_week_begins_on_monday (void);
void          calendar_store_current_date (struct date *);
void          calendar_init_slctd_day (void);
struct date  *calendar_get_slctd_day (void);
long          calendar_get_slctd_day_sec (void);
void          calendar_update_panel (struct window *);
void          calendar_goto_today (void);
void          calendar_change_day (int);
void          calendar_move (enum move, int);
long          calendar_start_of_year (void);
long          calendar_end_of_year (void);
char         *calendar_get_pom (time_t);

/* custom.c */
void custom_init_attr (void);
void custom_apply_attr (WINDOW *, int);
void custom_remove_attr (WINDOW *, int);
void custom_load_conf (struct conf *);
void custom_config_bar (void);
void custom_layout_config (void);
void custom_sidebar_config (void);
void custom_color_config (void);
void custom_color_theme_name (char *);
void custom_confwin_init (struct window *, char *);
void custom_set_swsiz (struct scrollwin *);
void custom_general_config (struct conf *);
void custom_keys_config (void);

/* day.c */
void                  day_free_list (void);
struct day_items_nb  *day_process_storage (struct date *, unsigned,
                                           struct day_items_nb *);
void                  day_write_pad (long, int, int, int);
void                  day_popup_item (void);
int                   day_check_if_item (struct date);
unsigned              day_chk_busy_slices (struct date, int, int *);
void                  day_edit_item (struct conf *);
int                   day_erase_item (long, int, enum eraseflg);
int                   day_cut_item (long, int);
int                   day_paste_item (long, int);
struct day_item      *day_get_item (int);
int                   day_item_nb (long, int, int);
void                  day_edit_note (char *);
void                  day_view_note (char *);
void                  day_pipe_item (struct conf *);

/* dmon.c */
void   dmon_start (int);
void   dmon_stop (void);

/* event.c */
extern llist_t eventlist;
void          event_free_bkp (void);
void          event_llist_init (void);
void          event_llist_free (void);
struct event *event_new (char *, char *, long, int);
unsigned      event_inday (struct event *, long);
void          event_write (struct event *, FILE *);
struct event *event_scan (FILE *, struct tm, int, char *);
struct event *event_get (long, int);
void          event_delete_bynum (long, unsigned, enum eraseflg);
void          event_paste_item (void);

/* help.c */
void help_wins_init (struct scrollwin *, int, int, int, int);
void help_screen (void);

/* getstring.c */
enum getstr  getstring (WINDOW *, char *, int, int, int);
int          updatestring (WINDOW *, char **, int, int);

/* io.c */
unsigned         io_fprintln (const char *, const char *, ...);
void             io_init (char *, char *);
void             io_extract_data (char *, const char *, int);
unsigned         io_save_conf (struct conf *);
unsigned         io_save_apts (void);
unsigned         io_save_todo (void);
unsigned         io_save_keys (void);
void             io_save_cal (struct conf *, enum save_display);
void             io_load_app (void);
void             io_load_todo (void);
void             io_load_keys (char *);
void             io_check_dir (char *, int *);
unsigned         io_file_exist (char *);
void             io_check_file (char *, int *);
int              io_check_data_files (void);
void             io_startup_screen (unsigned, int);
void             io_export_data (enum export_type, struct conf *);
void             io_export_bar (void);
void             io_import_data (enum import_type, struct conf *, char *);
struct io_file  *io_log_init (void);
void             io_log_print (struct io_file *, int, char *);
void             io_log_display (struct io_file *, char *, char *);
void             io_log_free (struct io_file *);
void             io_start_psave_thread (struct conf *);
void             io_stop_psave_thread (void);
void             io_set_lock (void);
unsigned         io_dump_pid (char *);
unsigned         io_get_pid (char *);
int              io_file_is_empty (char *);
int              io_file_cp (const char *, const char *);

/* keys.c */
void      keys_init (void);
void      keys_free (void);
void      keys_dump_defaults (char *);
char     *keys_get_label (enum key);
enum key  keys_get_action (int);
enum key  keys_getch (WINDOW *win, int *);
int       keys_assign_binding (int, enum key);
void      keys_remove_binding (int, enum key);
int       keys_str2int (char *);
char     *keys_int2str (int);
int       keys_action_count_keys (enum key);
char     *keys_action_firstkey (enum key);
char     *keys_action_nkey (enum key, int);
char     *keys_action_allkeys (enum key);
void      keys_display_bindings_bar (WINDOW *, struct binding **, int, int);
void      keys_popup_info (enum key);
void      keys_save_bindings (FILE *);
int       keys_check_missing_bindings (void);
void      keys_fill_missing (void);

/* mem.c */
void  *xmalloc (size_t);
void  *xcalloc (size_t, size_t);
void  *xrealloc (void *, size_t, size_t);
char  *xstrdup (const char *);
void   xfree (void *);

#ifdef CALCURSE_MEMORY_DEBUG

#  define mem_malloc(s)         dbg_malloc ((s), __FILE_POS__)
#  define mem_calloc(n, s)      dbg_calloc ((n), (s), __FILE_POS__)
#  define mem_realloc(p, n, s)  dbg_realloc ((p), (n), (s), __FILE_POS__)
#  define mem_strdup(s)         dbg_strdup ((s), __FILE_POS__)
#  define mem_free(p)           dbg_free ((p), __FILE_POS__)

void  *dbg_malloc (size_t, const char *);
void  *dbg_calloc (size_t, size_t, const char *);
void  *dbg_realloc (void *, size_t, size_t, const char *);
char  *dbg_strdup (const char *, const char *);
void   dbg_free (void *, const char *);
void   mem_stats (void);

#else /* MEMORY DEBUG disabled */

#  define mem_malloc(s)         xmalloc ((s))
#  define mem_calloc(n, s)      xcalloc ((n), (s))
#  define mem_realloc(p, n, s)  xrealloc ((p), (n), (s))
#  define mem_strdup(s)         xstrdup ((s))
#  define mem_free(p)           xfree ((p))
#  define mem_stats()

#endif /* CALCURSE_MEMORY_DEBUG */

/* note.c */
void  edit_note (char **, char *);
void  view_note (char *, char *);
void  erase_note (char **);
void  note_read (char *, FILE *);
void  note_gc (void);

/* notify.c */
int       notify_time_left (void);
unsigned  notify_needs_reminder (void);
void      notify_update_app (long, char, char *);
int       notify_bar (void);
void      notify_init_vars (void);
void      notify_init_bar (void);
void      notify_free_app (void);
void      notify_start_main_thread (void);
void      notify_stop_main_thread (void);
void      notify_reinit_bar (void);
unsigned  notify_launch_cmd (void);
void      notify_update_bar (void);
unsigned  notify_get_next (struct notify_app *);
unsigned  notify_get_next_bkgd (void);
char     *notify_app_txt (void);
void      notify_check_next_app (int);
void      notify_check_added (char *, long, char);
void      notify_check_repeated (struct recur_apoint *);
int       notify_same_item (long);
int       notify_same_recur_item (struct recur_apoint *);
void      notify_config_bar (void);

/* recur.c */
extern llist_ts_t recur_alist_p;
extern llist_t recur_elist;
void                  recur_event_free_bkp (void);
void                  recur_apoint_free_bkp (void);
void                  recur_apoint_llist_init (void);
void                  recur_apoint_llist_free (void);
void                  recur_event_llist_free (void);
struct recur_apoint  *recur_apoint_new (char *, char *, long, long, char,
                                       int, int, long, llist_t *);
struct recur_event   *recur_event_new (char *, char *, long, int, int, int,
                                       long, llist_t *);
char                  recur_def2char (enum recur_type);
int                   recur_char2def (char);
struct recur_apoint *recur_apoint_scan (FILE *, struct tm, struct tm,
                                        char, int, struct tm, char *,
                                        llist_t *, char);
struct recur_event  *recur_event_scan (FILE *, struct tm, int, char,
                                       int, struct tm, char *,
                                       llist_t *);
void                 recur_apoint_write (struct recur_apoint *, FILE *);
void                 recur_event_write (struct recur_event *, FILE *);
void                 recur_save_data (FILE *);
unsigned             recur_item_inday (long, long, llist_t *, int, int, long,
                                       long);
unsigned             recur_apoint_inday(struct recur_apoint *, long);
unsigned             recur_event_inday(struct recur_event *, long);
void                 recur_event_erase (long, unsigned, unsigned,
                                        enum eraseflg);
void                 recur_apoint_erase (long, unsigned, unsigned,
                                         enum eraseflg);
void                 recur_repeat_item (struct conf *);
void                 recur_exc_scan (llist_t *, FILE *);
struct notify_app   *recur_apoint_check_next (struct notify_app *, long, long);
struct recur_apoint *recur_get_apoint (long, int);
struct recur_event  *recur_get_event (long, int);
void                 recur_apoint_switch_notify (long, int);
void                 recur_event_paste_item (void);
void                 recur_apoint_paste_item (void);

/* sigs.c */
void      sigs_init (void);
unsigned  sigs_set_hdlr (int, void (*)(int));

/* todo.c */
extern llist_t todolist;
void          todo_hilt_set (int);
void          todo_hilt_decrease (int);
void          todo_hilt_increase (int);
int           todo_hilt (void);
int           todo_nb (void);
void          todo_set_nb (int);
void          todo_set_first (int);
void          todo_first_increase (int);
void          todo_first_decrease (int);
int           todo_hilt_pos (void);
char         *todo_saved_mesg (void);
void          todo_new_item (void);
struct todo  *todo_add (char *, int, char *);
void          todo_write (struct todo *, FILE *);
void          todo_flag (void);
void          todo_delete (struct conf *);
void          todo_chg_priority (int);
void          todo_edit_item (void);
void          todo_update_panel (int);
void          todo_edit_note (char *);
void          todo_view_note (char *);
void          todo_pipe_item (void);
void          todo_init_list (void);
void          todo_free_list (void);

/* utf8.c */
int           utf8_width (char *);
int           utf8_strwidth (char *);

/* utils.c */
void         exit_calcurse (int) __attribute__((__noreturn__));
void         free_user_data (void);
void         fatalbox (const char *);
void         warnbox (const char *);
void         status_mesg (char *, char *);
void         erase_window_part (WINDOW *, int, int, int, int);
WINDOW      *popup (int, int, int, int, char *, char *, int);
void         print_in_middle (WINDOW *, int, int, int, char *);
int          is_all_digit (char *);
long         get_item_time (long);
int          get_item_hour (long);
int          get_item_min (long);
long         date2sec (struct date, unsigned, unsigned);
char        *date_sec2date_str (long, char *);
void         date_sec2date_fmt (long, const char *, char *);
long         date_sec_change (long, int, int);
long         update_time_in_date (long, unsigned, unsigned);
long         get_sec_date (struct date);
long         min2sec (unsigned);
void         draw_scrollbar (WINDOW *, int, int, int, int, int, unsigned);
void         item_in_popup (char *, char *, char *, char *);
long         get_today (void);
long         now (void);
char        *nowstr (void);
long         mystrtol (const char *);
void         print_bool_option_incolor (WINDOW *, unsigned, int, int);
const char  *get_tempdir (void);
char        *new_tempfile (const char *, int);
int          parse_date (const char *, enum datefmt, int *, int *, int *,
                         struct date *);
int          parse_time (const char *, unsigned *, unsigned *);
int          parse_duration (const char *, unsigned *);
void         str_toupper (char *);
void         file_close (FILE *, const char *);
void         psleep (unsigned);
int          fork_exec (int *, int *, const char *, char *const *);
int          shell_exec (int *, int *, char *);
int          child_wait (int *, int *, int);
void         press_any_key (void);

/* vars.c */
extern int               col, row;
extern int               resize;
extern unsigned          colorize;
extern int               foreground, background;
extern enum ui_mode      ui_mode;
extern int               days[12];
extern char             *monthnames[12];
extern char             *daynames[8];
extern char              path_dir[BUFSIZ];
extern char              path_todo[BUFSIZ];
extern char              path_apts[BUFSIZ];
extern char              path_conf[BUFSIZ];
extern char              path_keys[BUFSIZ];
extern char              path_notes[BUFSIZ];
extern char              path_cpid[BUFSIZ];
extern char              path_dpid[BUFSIZ];
extern char              path_dmon_log[BUFSIZ];
extern struct pad        apad;
extern struct nbar       nbar;
extern struct dmon_conf  dmon;
void vars_init (struct conf *);

/* wins.c */
extern struct window win[NBWINS];
int       wins_refresh (void);
int       wins_wrefresh (WINDOW *);
int       wins_doupdate (void);
int       wins_layout (void);
void      wins_set_layout (int);
unsigned  wins_sbar_width (void);
unsigned  wins_sbar_wperc (void);
void      wins_set_sbar_width (unsigned);
void      wins_sbar_winc (void);
void      wins_sbar_wdec (void);
void      wins_slctd_init (void);
enum win  wins_slctd (void);
void      wins_slctd_set (enum win);
void      wins_slctd_next (void);
void      wins_init (void);
void      wins_scrollwin_init (struct scrollwin *);
void      wins_scrollwin_delete (struct scrollwin *);
void      wins_scrollwin_display (struct scrollwin *);
void      wins_scrollwin_up (struct scrollwin *, int);
void      wins_scrollwin_down (struct scrollwin *, int);
void      wins_reinit (void);
void      wins_reinit_panels (void);
void      wins_show (WINDOW *, char *);
void      wins_get_config (void);
void      wins_update_border (int);
void      wins_update_panels (int);
void      wins_update (int);
void      wins_reset (void);
void      wins_prepare_external (void);
void      wins_unprepare_external (void);
void      wins_launch_external (char *, char *);
void      wins_status_bar (void);
void      wins_erase_status_bar (void);
void      wins_other_status_page (int);
void      wins_reset_status_page (void);

#endif /* CALCURSE_H */