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chared.h
1 /* $NetBSD: chared.h,v 1.21 2010/08/28 15:44:59 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 #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  ssize_t 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 typedef void (*el_zfunc_t)(EditLine *, void *);
107 
108 /*
109  * Note that we use both data structures because the user can bind
110  * commands from both editors!
111  */
112 typedef struct el_chared_t {
113  c_undo_t c_undo;
114  c_kill_t c_kill;
115  c_redo_t c_redo;
116  c_vcmd_t c_vcmd;
117  c_macro_t c_macro;
118  el_zfunc_t c_resizefun;
119  void * c_resizearg;
120 } el_chared_t;
121 
122 
123 #define STRQQ "\"\""
124 
125 #define isglob(a) (strchr("*[]?", (a)) != NULL)
126 
127 #define NOP 0x00
128 #define DELETE 0x01
129 #define INSERT 0x02
130 #define YANK 0x04
131 
132 #define CHAR_FWD (+1)
133 #define CHAR_BACK (-1)
134 
135 #define MODE_INSERT 0
136 #define MODE_REPLACE 1
137 #define MODE_REPLACE_1 2
138 
139 #include "common.h"
140 #include "vi.h"
141 #include "emacs.h"
142 #include "search.h"
143 #include "fcns.h"
144 
145 
146 protected int cv__isword(Int);
147 protected int cv__isWord(Int);
148 protected void cv_delfini(EditLine *);
149 protected Char *cv__endword(Char *, Char *, int, int (*)(Int));
150 protected int ce__isword(Int);
151 protected void cv_undo(EditLine *);
152 protected void cv_yank(EditLine *, const Char *, int);
153 protected Char *cv_next_word(EditLine*, Char *, Char *, int, int (*)(Int));
154 protected Char *cv_prev_word(Char *, Char *, int, int (*)(Int));
155 protected Char *c__next_word(Char *, Char *, int, int (*)(Int));
156 protected Char *c__prev_word(Char *, Char *, int, int (*)(Int));
157 protected void c_insert(EditLine *, int);
158 protected void c_delbefore(EditLine *, int);
159 protected void c_delbefore1(EditLine *);
160 protected void c_delafter(EditLine *, int);
161 protected void c_delafter1(EditLine *);
162 protected int c_gets(EditLine *, Char *, const Char *);
163 protected int c_hpos(EditLine *);
164 
165 protected int ch_init(EditLine *);
166 protected void ch_reset(EditLine *, int);
167 protected int ch_resizefun(EditLine *, el_zfunc_t, void *);
168 protected int ch_enlargebufs(EditLine *, size_t);
169 protected void ch_end(EditLine *);
170 
171 #endif /* _h_el_chared */