77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
/* $NetBSD: hist.h,v 1.10 2003/08/07 16:44:31 agc Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Christos Zoulas of Cornell University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)hist.h 8.1 (Berkeley) 6/4/93
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*/
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/*
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* el.hist.c: History functions
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*/
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#ifndef _h_el_hist
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#define _h_el_hist
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#include "histedit.h"
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typedef int (*hist_fun_t)(ptr_t, HistEvent *, int, ...);
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typedef struct el_history_t {
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char *buf; /* The history buffer */
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size_t sz; /* Size of history buffer */
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char *last; /* The last character */
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int eventno; /* Event we are looking for */
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ptr_t ref; /* Argument for history fcns */
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hist_fun_t fun; /* Event access */
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HistEvent ev; /* Event cookie */
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} el_history_t;
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#define HIST_FUN(el, fn, arg) \
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((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
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fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
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#define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL)
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#define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL)
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#define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL)
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#define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL)
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#define HIST_SET(el, num) HIST_FUN(el, H_SET, num)
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#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
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#define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname)
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protected int hist_init(EditLine *);
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protected void hist_end(EditLine *);
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protected el_action_t hist_get(EditLine *);
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protected int hist_set(EditLine *, hist_fun_t, ptr_t);
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protected int hist_command(EditLine *, int, const char **);
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protected int hist_enlargebuf(EditLine *, size_t, size_t);
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#endif /* _h_el_hist */
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