1 /* $OpenBSD: hist.h,v 1.4 1997/03/14 05:12:49 millert Exp $ */ 2 /* $NetBSD: hist.h,v 1.3 1997/01/11 06:47:56 lukem 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. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)hist.h 8.1 (Berkeley) 6/4/93 40 */ 41 42 /* 43 * el.hist.c: History functions 44 */ 45 #ifndef _h_el_hist 46 #define _h_el_hist 47 48 #include "histedit.h" 49 50 typedef const HistEvent * (*hist_fun_t) __P((ptr_t, int, ...)); 51 52 typedef struct el_history_t { 53 char *buf; /* The history buffer */ 54 char *last; /* The last character */ 55 int eventno; /* Event we are looking for */ 56 ptr_t ref; /* Argument for history fcns */ 57 hist_fun_t fun; /* Event access */ 58 const HistEvent *ev; /* Event cookie */ 59 } el_history_t; 60 61 #define HIST_FUN(el, fn, arg) \ 62 ((((el)->el_history.ev = \ 63 (*(el)->el_history.fun)((el)->el_history.ref, fn, arg)) == NULL) ? \ 64 NULL : (el)->el_history.ev->str) 65 66 #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) 67 #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) 68 #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) 69 #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) 70 #define HIST_EVENT(el, num) HIST_FUN(el, H_EVENT, num) 71 #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) 72 #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) 73 74 protected int hist_init __P((EditLine *)); 75 protected void hist_end __P((EditLine *)); 76 protected el_action_t hist_get __P((EditLine *)); 77 protected int hist_set __P((EditLine *, hist_fun_t, ptr_t)); 78 protected int hist_list __P((EditLine *, int, char **)); 79 80 #endif /* _h_el_hist */ 81