hist.h revision 84260
11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1992, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * This code is derived from software contributed to Berkeley by 61573Srgrimes * Christos Zoulas of Cornell University. 71573Srgrimes * 81573Srgrimes * Redistribution and use in source and binary forms, with or without 91573Srgrimes * modification, are permitted provided that the following conditions 101573Srgrimes * are met: 111573Srgrimes * 1. Redistributions of source code must retain the above copyright 121573Srgrimes * notice, this list of conditions and the following disclaimer. 131573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141573Srgrimes * notice, this list of conditions and the following disclaimer in the 151573Srgrimes * documentation and/or other materials provided with the distribution. 161573Srgrimes * 3. All advertising materials mentioning features or use of this software 171573Srgrimes * must display the following acknowledgement: 181573Srgrimes * This product includes software developed by the University of 191573Srgrimes * California, Berkeley and its contributors. 201573Srgrimes * 4. Neither the name of the University nor the names of its contributors 211573Srgrimes * may be used to endorse or promote products derived from this software 221573Srgrimes * without specific prior written permission. 231573Srgrimes * 241573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341573Srgrimes * SUCH DAMAGE. 351573Srgrimes * 361573Srgrimes * @(#)hist.h 8.1 (Berkeley) 6/4/93 3784260Sobrien * $NetBSD: hist.h,v 1.5 2000/09/04 22:06:30 lukem Exp $ 3884260Sobrien * $FreeBSD: head/lib/libedit/hist.h 84260 2001-10-01 08:41:27Z obrien $ 391573Srgrimes */ 401573Srgrimes 411573Srgrimes/* 421573Srgrimes * el.hist.c: History functions 431573Srgrimes */ 441573Srgrimes#ifndef _h_el_hist 4584260Sobrien#define _h_el_hist 461573Srgrimes 471573Srgrimes#include "histedit.h" 481573Srgrimes 4984260Sobrientypedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...); 501573Srgrimes 511573Srgrimestypedef struct el_history_t { 5284260Sobrien char *buf; /* The history buffer */ 5384260Sobrien size_t sz; /* Size of history buffer */ 5484260Sobrien char *last; /* The last character */ 5584260Sobrien int eventno; /* Event we are looking for */ 5684260Sobrien ptr_t ref; /* Argument for history fcns */ 5784260Sobrien hist_fun_t fun; /* Event access */ 5884260Sobrien HistEvent ev; /* Event cookie */ 591573Srgrimes} el_history_t; 601573Srgrimes 6184260Sobrien#define HIST_FUN(el, fn, arg) \ 6284260Sobrien ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \ 6384260Sobrien fn, arg)) == -1) ? NULL : (el)->el_history.ev.str) 641573Srgrimes 651573Srgrimes#define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) 661573Srgrimes#define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) 671573Srgrimes#define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) 681573Srgrimes#define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) 691573Srgrimes#define HIST_EVENT(el, num) HIST_FUN(el, H_EVENT, num) 7084260Sobrien#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) 7184260Sobrien#define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) 721573Srgrimes 7384260Sobrienprotected int hist_init(EditLine *); 7484260Sobrienprotected void hist_end(EditLine *); 7584260Sobrienprotected el_action_t hist_get(EditLine *); 7684260Sobrienprotected int hist_set(EditLine *, hist_fun_t, ptr_t); 7784260Sobrienprotected int hist_list(EditLine *, int, char **); 7884260Sobrienprotected int hist_enlargebuf(EditLine *, size_t, size_t); 791573Srgrimes 801573Srgrimes#endif /* _h_el_hist */ 81