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Annotation of src/lib/libedit/hist.h, Revision 1.20

1.20    ! christos    1: /*     $NetBSD: hist.h,v 1.19 2016/03/23 22:27:48 christos Exp $       */
1.3       lukem       2:
1.1       cgd         3: /*-
                      4:  * Copyright (c) 1992, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Christos Zoulas of Cornell University.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
1.10      agc        18:  * 3. Neither the name of the University nor the names of its contributors
1.1       cgd        19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
                     34:  *     @(#)hist.h      8.1 (Berkeley) 6/4/93
                     35:  */
                     36:
                     37: /*
                     38:  * el.hist.c: History functions
                     39:  */
                     40: #ifndef _h_el_hist
1.5       lukem      41: #define        _h_el_hist
1.1       cgd        42:
1.20    ! christos   43: typedef int (*hist_fun_t)(void *, HistEventW *, int, ...);
1.1       cgd        44:
                     45: typedef struct el_history_t {
1.11      christos   46:        Char            *buf;           /* The history buffer           */
1.15      christos   47:        size_t           sz;            /* Size of history buffer       */
1.11      christos   48:        Char            *last;          /* The last character           */
1.5       lukem      49:        int              eventno;       /* Event we are looking for     */
1.15      christos   50:        void            *ref;           /* Argument for history fcns    */
1.5       lukem      51:        hist_fun_t       fun;           /* Event access                 */
1.20    ! christos   52:        HistEventW       ev;            /* Event cookie                 */
1.1       cgd        53: } el_history_t;
                     54:
1.12      christos   55: #define        HIST_FUN_INTERNAL(el, fn, arg)  \
1.4       christos   56:     ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
                     57:        fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
1.12      christos   58: #define HIST_FUN(el, fn, arg) \
                     59:     (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \
                     60:        HIST_FUN_INTERNAL(el, fn, arg))
1.1       cgd        61:
                     62: #define        HIST_NEXT(el)           HIST_FUN(el, H_NEXT, NULL)
                     63: #define        HIST_FIRST(el)          HIST_FUN(el, H_FIRST, NULL)
                     64: #define        HIST_LAST(el)           HIST_FUN(el, H_LAST, NULL)
                     65: #define        HIST_PREV(el)           HIST_FUN(el, H_PREV, NULL)
1.8       christos   66: #define        HIST_SET(el, num)       HIST_FUN(el, H_SET, num)
1.2       christos   67: #define        HIST_LOAD(el, fname)    HIST_FUN(el, H_LOAD fname)
                     68: #define        HIST_SAVE(el, fname)    HIST_FUN(el, H_SAVE fname)
1.14      christos   69: #define        HIST_SAVE_FP(el, fp)    HIST_FUN(el, H_SAVE_FP fp)
1.1       cgd        70:
1.5       lukem      71: protected int          hist_init(EditLine *);
                     72: protected void         hist_end(EditLine *);
                     73: protected el_action_t  hist_get(EditLine *);
1.13      christos   74: protected int          hist_set(EditLine *, hist_fun_t, void *);
1.11      christos   75: protected int          hist_command(EditLine *, int, const Char **);
1.6       jdolecek   76: protected int          hist_enlargebuf(EditLine *, size_t, size_t);
1.18      christos   77: protected wchar_t      *hist_convert(EditLine *, int, void *);
1.1       cgd        78:
                     79: #endif /* _h_el_hist */