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Diffstat (limited to 'src/hist.h')
| -rw-r--r-- | src/hist.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/hist.h b/src/hist.h new file mode 100644 index 0000000..a63be49 --- /dev/null +++ b/src/hist.h @@ -0,0 +1,87 @@ +/* $NetBSD: hist.h,v 1.13 2011/07/28 20:50:55 christos Exp $ */ + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Christos Zoulas of Cornell University. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)hist.h 8.1 (Berkeley) 6/4/93 + */ + +/* + * el.hist.c: History functions + */ +#ifndef _h_el_hist +#define _h_el_hist + +#include "histedit.h" + +typedef int (*hist_fun_t)(void *, TYPE(HistEvent) *, int, ...); + +typedef struct el_history_t { + Char *buf; /* The history buffer */ + size_t sz; /* Size of history buffer */ + Char *last; /* The last character */ + int eventno; /* Event we are looking for */ + void * ref; /* Argument for history fcns */ + hist_fun_t fun; /* Event access */ + TYPE(HistEvent) ev; /* Event cookie */ +} el_history_t; + +#define HIST_FUN_INTERNAL(el, fn, arg) \ + ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \ + fn, arg)) == -1) ? NULL : (el)->el_history.ev.str) +#ifdef WIDECHAR +#define HIST_FUN(el, fn, arg) \ + (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \ + HIST_FUN_INTERNAL(el, fn, arg)) +#else +#define HIST_FUN(el, fn, arg) HIST_FUN_INTERNAL(el, fn, arg) +#endif + + +#define HIST_NEXT(el) HIST_FUN(el, H_NEXT, NULL) +#define HIST_FIRST(el) HIST_FUN(el, H_FIRST, NULL) +#define HIST_LAST(el) HIST_FUN(el, H_LAST, NULL) +#define HIST_PREV(el) HIST_FUN(el, H_PREV, NULL) +#define HIST_SET(el, num) HIST_FUN(el, H_SET, num) +#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname) +#define HIST_SAVE(el, fname) HIST_FUN(el, H_SAVE fname) + +protected int hist_init(EditLine *); +protected void hist_end(EditLine *); +protected el_action_t hist_get(EditLine *); +protected int hist_set(EditLine *, hist_fun_t, void *); +protected int hist_command(EditLine *, int, const Char **); +protected int hist_enlargebuf(EditLine *, size_t, size_t); +#ifdef WIDECHAR +protected wchar_t *hist_convert(EditLine *, int, void *); +#endif + +#endif /* _h_el_hist */ |