1 /* $NetBSD: hist.h,v 1.18 2016/02/17 19:47:49 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Christos Zoulas of Cornell University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)hist.h 8.1 (Berkeley) 6/4/93 35 * $FreeBSD$ 36 */ 37 38 /* 39 * el.hist.c: History functions 40 */ 41 #ifndef _h_el_hist 42 #define _h_el_hist 43 44 typedef int (*hist_fun_t)(void *, TYPE(HistEvent) *, int, ...); 45 46 typedef struct el_history_t { 47 Char *buf; /* The history buffer */ 48 size_t sz; /* Size of history buffer */ 49 Char *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 TYPE(HistEvent) 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 #ifdef WIDECHAR 60 #define HIST_FUN(el, fn, arg) \ 61 (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \ 62 HIST_FUN_INTERNAL(el, fn, arg)) 63 #else 64 #define HIST_FUN(el, fn, arg) HIST_FUN_INTERNAL(el, fn, arg) 65 #endif 66 67 68 #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) 69 #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) 70 #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) 71 #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) 72 #define HIST_SET(el, num) HIST_FUN(el, H_SET, num) 73 #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) 74 #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) 75 #define HIST_SAVE_FP(el, fp) HIST_FUN(el, H_SAVE_FP fp) 76 77 protected int hist_init(EditLine *); 78 protected void hist_end(EditLine *); 79 protected el_action_t hist_get(EditLine *); 80 protected int hist_set(EditLine *, hist_fun_t, void *); 81 protected int hist_command(EditLine *, int, const Char **); 82 protected int hist_enlargebuf(EditLine *, size_t, size_t); 83 #ifdef WIDECHAR 84 protected wchar_t *hist_convert(EditLine *, int, void *); 85 #endif 86 87 #endif /* _h_el_hist */ 88