| 1 | /* $NetBSD: hist.h,v 1.12 2009/12/30 23:54:52 christos Exp $ */
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| 2 |
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| 3 | /*-
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| 4 | * Copyright (c) 1992, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley by
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| 8 | * Christos Zoulas of Cornell University.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | * 1. Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | * 3. Neither the name of the University nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | *
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| 34 | * @(#)hist.h 8.1 (Berkeley) 6/4/93
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| 35 | */
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| 36 |
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| 37 | /*
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| 38 | * el.hist.c: History functions
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| 39 | */
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| 40 | #ifndef _h_el_hist
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| 41 | #define _h_el_hist
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| 42 |
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| 43 | #include "histedit.h"
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| 44 |
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| 45 | typedef int (*hist_fun_t)(ptr_t, TYPE(HistEvent) *, int, ...);
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| 46 |
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| 47 | typedef struct el_history_t {
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| 48 | Char *buf; /* The history buffer */
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| 49 | size_t sz; /* Size of history buffer */
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| 50 | Char *last; /* The last character */
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| 51 | int eventno; /* Event we are looking for */
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| 52 | ptr_t ref; /* Argument for history fcns */
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| 53 | hist_fun_t fun; /* Event access */
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| 54 | TYPE(HistEvent) ev; /* Event cookie */
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| 55 | } el_history_t;
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| 56 |
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| 57 | #define HIST_FUN_INTERNAL(el, fn, arg) \
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| 58 | ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
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| 59 | fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
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| 60 | #ifdef WIDECHAR
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| 61 | #define HIST_FUN(el, fn, arg) \
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| 62 | (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \
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| 63 | HIST_FUN_INTERNAL(el, fn, arg))
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| 64 | #else
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| 65 | #define HIST_FUN(el, fn, arg) HIST_FUN_INTERNAL(el, fn, arg)
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| 66 | #endif
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| 67 |
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| 68 |
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| 69 | #define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL)
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| 70 | #define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL)
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| 71 | #define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL)
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| 72 | #define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL)
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| 73 | #define HIST_SET(el, num) HIST_FUN(el, H_SET, num)
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| 74 | #define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
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| 75 | #define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname)
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| 76 |
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| 77 | protected int hist_init(EditLine *);
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| 78 | protected void hist_end(EditLine *);
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| 79 | protected el_action_t hist_get(EditLine *);
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| 80 | protected int hist_set(EditLine *, hist_fun_t, ptr_t);
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| 81 | protected int hist_command(EditLine *, int, const Char **);
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| 82 | protected int hist_enlargebuf(EditLine *, size_t, size_t);
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| 83 | #ifdef WIDECHAR
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| 84 | protected wchar_t *hist_convert(EditLine *, int, ptr_t);
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| 85 | #endif
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| 86 |
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| 87 | #endif /* _h_el_hist */
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