lib/libedit/chared.h

   1 /*-
   2  * Copyright (c) 1992, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Christos Zoulas of Cornell University.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#)chared.h 8.1 (Berkeley) 6/4/93
  33  * $NetBSD: chared.h,v 1.17 2006/03/06 21:11:56 christos Exp $
  34  * $DragonFly: src/lib/libedit/chared.h,v 1.5 2007/05/05 00:27:39 pavalos Exp $
  35  */
  36
  37 /*
  38  * el.chared.h: Character editor interface
  39  */
  40 #ifndef _h_el_chared
  41 #define _h_el_chared
  42
  43 #include <ctype.h>
  44 #include <string.h>
  45
  46 #include "histedit.h"
  47
  48 #define EL_MAXMACRO     10
  49
  50 /*
  51  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
  52  * like real vi: i.e. the transition from command<->insert modes moves
  53  * the cursor.
  54  *
  55  * On the other hand we really don't want to move the cursor, because
  56  * all the editing commands don't include the character under the cursor.
  57  * Probably the best fix is to make all the editing commands aware of
  58  * this fact.
  59  */
  60 #define VI_MOVE
  61
  62
  63 typedef struct c_macro_t {
  64         int       level;
  65         int       offset;
  66         char    **macro;
  67 } c_macro_t;
  68
  69 /*
  70  * Undo information for vi - no undo in emacs (yet)
  71  */
  72 typedef struct c_undo_t {
  73         int      len;                   /* length of saved line */
  74         int      cursor;                /* position of saved cursor */
  75         char    *buf;                   /* full saved text */
  76 } c_undo_t;
  77
  78 /* redo for vi */
  79 typedef struct c_redo_t {
  80         char    *buf;                   /* redo insert key sequence */
  81         char    *pos;
  82         char    *lim;
  83         el_action_t     cmd;            /* command to redo */
  84         char    ch;                     /* char that invoked it */
  85         int     count;
  86         int     action;                 /* from cv_action() */
  87 } c_redo_t;
  88
  89 /*
  90  * Current action information for vi
  91  */
  92 typedef struct c_vcmd_t {
  93         int      action;
  94         char    *pos;
  95 } c_vcmd_t;
  96
  97 /*
  98  * Kill buffer for emacs
  99  */
 100 typedef struct c_kill_t {
 101         char    *buf;
 102         char    *last;
 103         char    *mark;
 104 } c_kill_t;
 105
 106 /*
 107  * Note that we use both data structures because the user can bind
 108  * commands from both editors!
 109  */
 110 typedef struct el_chared_t {
 111         c_undo_t        c_undo;
 112         c_kill_t        c_kill;
 113         c_redo_t        c_redo;
 114         c_vcmd_t        c_vcmd;
 115         c_macro_t       c_macro;
 116 } el_chared_t;
 117
 118
 119 #define STRQQ           "\"\""
 120
 121 #define isglob(a)       (strchr("*[]?", (a)) != NULL)
 122 #define isword(a)       (isprint(a))
 123
 124 #define NOP             0x00
 125 #define DELETE          0x01
 126 #define INSERT          0x02
 127 #define YANK            0x04
 128
 129 #define CHAR_FWD        (+1)
 130 #define CHAR_BACK       (-1)
 131
 132 #define MODE_INSERT     0
 133 #define MODE_REPLACE    1
 134 #define MODE_REPLACE_1  2
 135
 136 #include "common.h"
 137 #include "vi.h"
 138 #include "emacs.h"
 139 #include "search.h"
 140 #include "fcns.h"
 141
 142
 143 protected int    cv__isword(int);
 144 protected int    cv__isWord(int);
 145 protected void   cv_delfini(EditLine *);
 146 protected char  *cv__endword(char *, char *, int, int (*)(int));
 147 protected int    ce__isword(int);
 148 protected void   cv_undo(EditLine *);
 149 protected void   cv_yank(EditLine *, const char *, int);
 150 protected char  *cv_next_word(EditLine*, char *, char *, int, int (*)(int));
 151 protected char  *cv_prev_word(char *, char *, int, int (*)(int));
 152 protected char  *c__next_word(char *, char *, int, int (*)(int));
 153 protected char  *c__prev_word(char *, char *, int, int (*)(int));
 154 protected void   c_insert(EditLine *, int);
 155 protected void   c_delbefore(EditLine *, int);
 156 protected void   c_delbefore1(EditLine *);
 157 protected void   c_delafter(EditLine *, int);
 158 protected void   c_delafter1(EditLine *);
 159 protected int    c_gets(EditLine *, char *, const char *);
 160 protected int    c_hpos(EditLine *);
 161
 162 protected int    ch_init(EditLine *);
 163 protected void   ch_reset(EditLine *, int);
 164 protected int    ch_enlargebufs(EditLine *, size_t);
 165 protected void   ch_end(EditLine *);
 166
 167 #endif /* _h_el_chared */