lib/libedit/src/chared.h

   1 /*      $NetBSD: chared.h,v 1.30 2016/05/22 19:44:26 christos Exp $     */
   2
   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.
  18  * 3. Neither the name of the University nor the names of its contributors
  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  *      @(#)chared.h    8.1 (Berkeley) 6/4/93
  35  */
  36
  37 /*
  38  * el.chared.h: Character editor interface
  39  */
  40 #ifndef _h_el_chared
  41 #define _h_el_chared
  42
  43 /*
  44  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
  45  * like real vi: i.e. the transition from command<->insert modes moves
  46  * the cursor.
  47  *
  48  * On the other hand we really don't want to move the cursor, because
  49  * all the editing commands don't include the character under the cursor.
  50  * Probably the best fix is to make all the editing commands aware of
  51  * this fact.
  52  */
  53 #define VI_MOVE
  54
  55 /*
  56  * Undo information for vi - no undo in emacs (yet)
  57  */
  58 typedef struct c_undo_t {
  59         ssize_t  len;                   /* length of saved line */
  60         int      cursor;                /* position of saved cursor */
  61         wchar_t *buf;                   /* full saved text */
  62 } c_undo_t;
  63
  64 /* redo for vi */
  65 typedef struct c_redo_t {
  66         wchar_t *buf;                   /* redo insert key sequence */
  67         wchar_t *pos;
  68         wchar_t *lim;
  69         el_action_t     cmd;            /* command to redo */
  70         wchar_t ch;                     /* char that invoked it */
  71         int     count;
  72         int     action;                 /* from cv_action() */
  73 } c_redo_t;
  74
  75 /*
  76  * Current action information for vi
  77  */
  78 typedef struct c_vcmd_t {
  79         int      action;
  80         wchar_t *pos;
  81 } c_vcmd_t;
  82
  83 /*
  84  * Kill buffer for emacs
  85  */
  86 typedef struct c_kill_t {
  87         wchar_t *buf;
  88         wchar_t *last;
  89         wchar_t *mark;
  90 } c_kill_t;
  91
  92 typedef void (*el_zfunc_t)(EditLine *, void *);
  93 typedef const char *(*el_afunc_t)(void *, const char *);
  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         el_afunc_t      c_aliasfun;
 106         void *          c_resizearg;
 107         void *          c_aliasarg;
 108 } el_chared_t;
 109
 110
 111 #define STRQQ           "\"\""
 112
 113 #define isglob(a)       (strchr("*[]?", (a)) != NULL)
 114
 115 #define NOP             0x00
 116 #define DELETE          0x01
 117 #define INSERT          0x02
 118 #define YANK            0x04
 119
 120 #define CHAR_FWD        (+1)
 121 #define CHAR_BACK       (-1)
 122
 123 #define MODE_INSERT     0
 124 #define MODE_REPLACE    1
 125 #define MODE_REPLACE_1  2
 126
 127
 128 libedit_private int      cv__isword(wint_t);
 129 libedit_private int      cv__isWord(wint_t);
 130 libedit_private void     cv_delfini(EditLine *);
 131 libedit_private wchar_t *cv__endword(wchar_t *, wchar_t *, int, int (*)(wint_t));
 132 libedit_private int      ce__isword(wint_t);
 133 libedit_private void     cv_undo(EditLine *);
 134 libedit_private void     cv_yank(EditLine *, const wchar_t *, int);
 135 libedit_private wchar_t *cv_next_word(EditLine*, wchar_t *, wchar_t *, int,
 136                         int (*)(wint_t));
 137 libedit_private wchar_t *cv_prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 138 libedit_private wchar_t *c__next_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 139 libedit_private wchar_t *c__prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
 140 libedit_private void     c_insert(EditLine *, int);
 141 libedit_private void     c_delbefore(EditLine *, int);
 142 libedit_private void     c_delbefore1(EditLine *);
 143 libedit_private void     c_delafter(EditLine *, int);
 144 libedit_private void     c_delafter1(EditLine *);
 145 libedit_private int      c_gets(EditLine *, wchar_t *, const wchar_t *);
 146 libedit_private int      c_hpos(EditLine *);
 147
 148 libedit_private int      ch_init(EditLine *);
 149 libedit_private void     ch_reset(EditLine *);
 150 libedit_private int      ch_resizefun(EditLine *, el_zfunc_t, void *);
 151 libedit_private int      ch_aliasfun(EditLine *, el_afunc_t, void *);
 152 libedit_private int      ch_enlargebufs(EditLine *, size_t);
 153 libedit_private void     ch_end(EditLine *);
 154
 155 #endif /* _h_el_chared */