pith/hist.h

   1 /*
   2  * $Id: hist.h 768 2007-10-24 00:10:03Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2013-2022 Eduardo Chappa
   6  * Copyright 2006-2007 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_HIST_INCLUDED
  18 #define PITH_HIST_INCLUDED
  19
  20
  21 #define HISTSIZE (20+1)
  22
  23 typedef struct one_hist {
  24     char      *str;
  25     unsigned   flags;
  26     void      *cntxt;
  27 } ONE_HIST_S;
  28
  29
  30 typedef struct history_s {
  31     int         histsize;
  32     int         origindex;
  33     int         curindex;
  34     ONE_HIST_S *hist[1];        /* has size histsize */
  35 } HISTORY_S;
  36
  37
  38 #define HISTORY_UP_KEYNAME  "Up"
  39 #define HISTORY_DOWN_KEYNAME  "Down"
  40 #define HISTORY_KEYLABEL N_("History")
  41
  42 void        init_hist(HISTORY_S **, int);
  43 void        free_hist(HISTORY_S **);
  44 char       *get_prev_hist(HISTORY_S *, char *, unsigned, void *);
  45 char       *get_next_hist(HISTORY_S *, char *, unsigned, void *);
  46 char       *hist_in_pos(int, char **, int, HISTORY_S *, int);
  47 void        save_hist(HISTORY_S *, char *, unsigned, void *);
  48 int         items_in_hist(HISTORY_S *);
  49 void        add_to_histlist(HISTORY_S **);
  50 void        free_histlist(void);
  51 int         dirs_in_hist(HISTORY_S *);
  52
  53
  54 #endif /* PITH_HIST_INCLUDED */