1 /* $OpenBSD: hist.h,v 1.7 2003/10/31 08:42:24 otto Exp $ */ 2 /* $NetBSD: hist.h,v 1.10 2003/08/07 16:44:31 agc 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 44 #include "histedit.h" 45 46 typedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...); 47 48 typedef struct el_history_t { 49 char *buf; /* The history buffer */ 50 size_t sz; /* Size of history buffer */ 51 char *last; /* The last character */ 52 int eventno; /* Event we are looking for */ 53 ptr_t ref; /* Argument for history fcns */ 54 hist_fun_t fun; /* Event access */ 55 HistEvent ev; /* Event cookie */ 56 } el_history_t; 57 58 #define HIST_FUN(el, fn, arg) \ 59 ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \ 60 fn, arg)) == -1) ? NULL : (el)->el_history.ev.str) 61 62 #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) 63 #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) 64 #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) 65 #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) 66 #define HIST_SET(el, num) HIST_FUN(el, H_SET, num) 67 #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) 68 #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) 69 70 protected int hist_init(EditLine *); 71 protected void hist_end(EditLine *); 72 protected el_action_t hist_get(EditLine *); 73 protected int hist_set(EditLine *, hist_fun_t, ptr_t); 74 protected int hist_command(EditLine *, int, const char **); 75 protected int hist_enlargebuf(EditLine *, size_t, size_t); 76 77 #endif /* _h_el_hist */ 78