lib/libedit/chared.h

   1 /*      $OpenBSD: chared.h,v 1.15 2016/05/22 23:09:56 schwarze Exp $    */
   2 /*      $NetBSD: chared.h,v 1.20 2010/04/15 00:57:33 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  *      @(#)chared.h    8.1 (Berkeley) 6/4/93
  36  */
  37
  38 /*
  39  * el.chared.h: Character editor interface
  40  */
  41 #ifndef _h_el_chared
  42 #define _h_el_chared
  43
  44 /*
  45  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
  46  * like real vi: i.e. the transition from command<->insert modes moves
  47  * the cursor.
  48  *
  49  * On the other hand we really don't want to move the cursor, because
  50  * all the editing commands don't include the character under the cursor.
  51  * Probably the best fix is to make all the editing commands aware of
  52  * this fact.
  53  */
  54 #define VI_MOVE
  55
  56 /*
  57  * Undo information for vi - no undo in emacs (yet)
  58  */
  59 typedef struct c_undo_t {
  60         ssize_t  len;                   /* length of saved line */
  61         int      cursor;                /* position of saved cursor */
  62         wchar_t *buf;                   /* full saved text */
  63 } c_undo_t;
  64
  65 /* redo for vi */
  66 typedef struct c_redo_t {
  67         wchar_t *buf;                   /* redo insert key sequence */
  68         wchar_t *pos;
  69         wchar_t *lim;
  70         el_action_t     cmd;            /* command to redo */
  71         wchar_t ch;                     /* char that invoked it */
  72         int     count;
  73         int     action;                 /* from cv_action() */
  74 } c_redo_t;
  75
  76 /*
  77  * Current action information for vi
  78  */
  79 typedef struct c_vcmd_t {
  80         int      action;
  81         wchar_t *pos;
  82 } c_vcmd_t;
  83
  84 /*
  85  * Kill buffer for emacs
  86  */
  87 typedef struct c_kill_t {
  88         wchar_t *buf;
  89         wchar_t *last;
  90         wchar_t *mark;
  91 } c_kill_t;
  92
  93 typedef void (*el_zfunc_t)(EditLine *, void *);
  94
  95 /*
  96  * Note that we use both data structures because the user can bind
  97  * commands from both editors!
  98  */
  99 typedef struct el_chared_t {
 100         c_undo_t        c_undo;
 101         c_kill_t        c_kill;
 102         c_redo_t        c_redo;
 103         c_vcmd_t        c_vcmd;
 104         el_zfunc_t      c_resizefun;
 105         void *          c_resizearg;
 106 } el_chared_t;
 107
 108
 109 #define STRQQ           "\"\""
 110
 111 #define isglob(a)       (strchr("*[]?", (a)) != NULL)
 112
 113 #define NOP             0x00
 114 #define DELETE          0x01
 115 #define INSERT          0x02
 116 #define YANK            0x04
 117
 118 #define CHAR_FWD        (+1)
 119 #define CHAR_BACK       (-1)
 120
 121 #define MODE_INSERT     0
 122 #define MODE_REPLACE    1
 123 #define MODE_REPLACE_1  2
 124
 125
 126 protected int    cv__isword(wint_t);
 127 protected int    cv__isWord(wint_t);
 128 protected void   cv_delfini(EditLine *);
 129 protected wchar_t *cv__endword(wchar_t *, wchar_t *, int, int (*)(wint_t));
 130 protected int    ce__isword(wint_t);
 131 protected void   cv_undo(EditLine *);
 132 protected void   cv_yank(EditLine *, const wchar_t *, int);
 133 protected wchar_t *cv_next_word(EditLine*, wchar_t *, wchar_t *, int,
 134                         int (*)(wint_t));
 135 protected wchar_t *cv_prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 136 protected wchar_t *c__next_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 137 protected wchar_t *c__prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 138 protected void   c_insert(EditLine *, int);
 139 protected void   c_delbefore(EditLine *, int);
 140 protected void   c_delbefore1(EditLine *);
 141 protected void   c_delafter(EditLine *, int);
 142 protected void   c_delafter1(EditLine *);
 143 protected int    c_gets(EditLine *, wchar_t *, const wchar_t *);
 144 protected int    c_hpos(EditLine *);
 145
 146 protected int    ch_init(EditLine *);
 147 protected void   ch_reset(EditLine *);
 148 protected int    ch_resizefun(EditLine *, el_zfunc_t, void *);
 149 protected int    ch_enlargebufs(EditLine *, size_t);
 150 protected void   ch_end(EditLine *);
 151
 152 #endif /* _h_el_chared */