1 /* $OpenBSD: hist.h,v 1.15 2016/04/11 20:43:33 schwarze Exp $ */ 2 /* $NetBSD: hist.h,v 1.21 2016/04/11 00:50:13 christos 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 typedef int (*hist_fun_t)(void *, HistEventW *, int, ...); 45 46 typedef struct el_history_t { 47 wchar_t *buf; /* The history buffer */ 48 size_t sz; /* Size of history buffer */ 49 wchar_t *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 HistEventW 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 #define HIST_FUN(el, fn, arg) \ 60 (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \ 61 HIST_FUN_INTERNAL(el, fn, arg)) 62 63 #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) 64 #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) 65 #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) 66 #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) 67 #define HIST_SET(el, num) HIST_FUN(el, H_SET, num) 68 #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) 69 #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) 70 #define HIST_SAVE_FP(el, fp) HIST_FUN(el, H_SAVE_FP fp) 71 72 protected int hist_init(EditLine *); 73 protected void hist_end(EditLine *); 74 protected el_action_t hist_get(EditLine *); 75 protected int hist_set(EditLine *, hist_fun_t, void *); 76 protected int hist_command(EditLine *, int, const wchar_t **); 77 protected int hist_enlargebuf(EditLine *, size_t, size_t); 78 protected wchar_t *hist_convert(EditLine *, int, void *); 79 80 #endif /* _h_el_hist */ 81