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1/* $OpenBSD: hist.h,v 1.15 2016/04/11 20:43:33 schwarze Exp $ */
2/* $NetBSD: hist.h,v 1.21 2016/04/11 00:50:13 christos Exp $ */
3
4/*-
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Christos Zoulas of Cornell University.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)hist.h 8.1 (Berkeley) 6/4/93
36 */
37
38/*
39 * el.hist.c: History functions
40 */
41#ifndef _h_el_hist
42#define _h_el_hist
43
44typedef int (*hist_fun_t)(void *, HistEventW *, int, ...);
45
46typedef struct el_history_t {
47 wchar_t *buf; /* The history buffer */
48 size_t sz; /* Size of history buffer */
49 wchar_t *last; /* The last character */
50 int eventno; /* Event we are looking for */
51 void *ref; /* Argument for history fcns */
52 hist_fun_t fun; /* Event access */
53 HistEventW ev; /* Event cookie */
54} el_history_t;
55
56#define HIST_FUN_INTERNAL(el, fn, arg) \
57 ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
58 fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
59#define HIST_FUN(el, fn, arg) \
60 (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \
61 HIST_FUN_INTERNAL(el, fn, arg))
62
63#define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL)
64#define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL)
65#define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL)
66#define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL)
67#define HIST_SET(el, num) HIST_FUN(el, H_SET, num)
68#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
69#define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname)
70#define HIST_SAVE_FP(el, fp) HIST_FUN(el, H_SAVE_FP fp)
71
72protected int hist_init(EditLine *);
73protected void hist_end(EditLine *);
74protected el_action_t hist_get(EditLine *);
75protected int hist_set(EditLine *, hist_fun_t, void *);
76protected int hist_command(EditLine *, int, const wchar_t **);
77protected int hist_enlargebuf(EditLine *, size_t, size_t);
78protected wchar_t *hist_convert(EditLine *, int, void *);
79
80#endif /* _h_el_hist */