dma: initialize queue structures
[dragonfly.git] / lib / libedit / hist.h
blobe64294a47d51911bcb3fb4b06fc58124dbcd2738
1 /*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Christos Zoulas of Cornell University.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
32 * @(#)hist.h 8.1 (Berkeley) 6/4/93
33 * $NetBSD: hist.h,v 1.10 2003/08/07 16:44:31 agc Exp $
34 * $DragonFly: src/lib/libedit/hist.h,v 1.4 2005/11/13 11:58:30 corecode Exp $
38 * el.hist.c: History functions
40 #ifndef _h_el_hist
41 #define _h_el_hist
43 #include "histedit.h"
45 typedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...);
47 typedef struct el_history_t {
48 char *buf; /* The history buffer */
49 size_t sz; /* Size of history buffer */
50 char *last; /* The last character */
51 int eventno; /* Event we are looking for */
52 ptr_t ref; /* Argument for history fcns */
53 hist_fun_t fun; /* Event access */
54 HistEvent ev; /* Event cookie */
55 } el_history_t;
57 #define HIST_FUN(el, fn, arg) \
58 ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
59 fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
61 #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL)
62 #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL)
63 #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL)
64 #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL)
65 #define HIST_SET(el, num) HIST_FUN(el, H_SET, num)
66 #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
67 #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname)
69 protected int hist_init(EditLine *);
70 protected void hist_end(EditLine *);
71 protected el_action_t hist_get(EditLine *);
72 protected int hist_set(EditLine *, hist_fun_t, ptr_t);
73 protected int hist_command(EditLine *, int, const char **);
74 protected int hist_enlargebuf(EditLine *, size_t, size_t);
76 #endif /* _h_el_hist */