xref: /openbsd-src/lib/libedit/chared.h (revision 91f110e064cd7c194e59e019b83bb7496c1c84d4)
1 /*	$OpenBSD: chared.h,v 1.10 2011/07/07 05:40:42 okan 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 #include <ctype.h>
45 #include <string.h>
46 
47 #include "histedit.h"
48 
49 #define	EL_MAXMACRO	10
50 
51 /*
52  * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
53  * like real vi: i.e. the transition from command<->insert modes moves
54  * the cursor.
55  *
56  * On the other hand we really don't want to move the cursor, because
57  * all the editing commands don't include the character under the cursor.
58  * Probably the best fix is to make all the editing commands aware of
59  * this fact.
60  */
61 #define	VI_MOVE
62 
63 
64 typedef struct c_macro_t {
65 	int	  level;
66 	int	  offset;
67 	Char	**macro;
68 } c_macro_t;
69 
70 /*
71  * Undo information for vi - no undo in emacs (yet)
72  */
73 typedef struct c_undo_t {
74 	ssize_t	 len;			/* length of saved line */
75 	int	 cursor;		/* position of saved cursor */
76 	Char	*buf;			/* full saved text */
77 } c_undo_t;
78 
79 /* redo for vi */
80 typedef struct c_redo_t {
81 	Char	*buf;			/* redo insert key sequence */
82 	Char	*pos;
83 	Char	*lim;
84 	el_action_t	cmd;		/* command to redo */
85 	Char	ch;			/* char that invoked it */
86 	int	count;
87 	int	action;			/* from cv_action() */
88 } c_redo_t;
89 
90 /*
91  * Current action information for vi
92  */
93 typedef struct c_vcmd_t {
94 	int	 action;
95 	Char	*pos;
96 } c_vcmd_t;
97 
98 /*
99  * Kill buffer for emacs
100  */
101 typedef struct c_kill_t {
102 	Char	*buf;
103 	Char	*last;
104 	Char	*mark;
105 } c_kill_t;
106 
107 typedef void (*el_zfunc_t)(EditLine *, void *);
108 
109 /*
110  * Note that we use both data structures because the user can bind
111  * commands from both editors!
112  */
113 typedef struct el_chared_t {
114 	c_undo_t	c_undo;
115 	c_kill_t	c_kill;
116 	c_redo_t	c_redo;
117 	c_vcmd_t	c_vcmd;
118 	c_macro_t	c_macro;
119 	el_zfunc_t	c_resizefun;
120 	void *		c_resizearg;
121 } el_chared_t;
122 
123 
124 #define	STRQQ		"\"\""
125 
126 #define	isglob(a)	(strchr("*[]?", (a)) != NULL)
127 
128 #define	NOP		0x00
129 #define	DELETE		0x01
130 #define	INSERT		0x02
131 #define	YANK		0x04
132 
133 #define	CHAR_FWD	(+1)
134 #define	CHAR_BACK	(-1)
135 
136 #define	MODE_INSERT	0
137 #define	MODE_REPLACE	1
138 #define	MODE_REPLACE_1	2
139 
140 #include "common.h"
141 #include "vi.h"
142 #include "emacs.h"
143 #include "search.h"
144 #include "fcns.h"
145 
146 
147 protected int	 cv__isword(Int);
148 protected int	 cv__isWord(Int);
149 protected void	 cv_delfini(EditLine *);
150 protected Char	*cv__endword(Char *, Char *, int, int (*)(Int));
151 protected int	 ce__isword(Int);
152 protected void	 cv_undo(EditLine *);
153 protected void	 cv_yank(EditLine *, const Char *, int);
154 protected Char	*cv_next_word(EditLine*, Char *, Char *, int, int (*)(Int));
155 protected Char	*cv_prev_word(Char *, Char *, int, int (*)(Int));
156 protected Char	*c__next_word(Char *, Char *, int, int (*)(Int));
157 protected Char	*c__prev_word(Char *, Char *, int, int (*)(Int));
158 protected void	 c_insert(EditLine *, int);
159 protected void	 c_delbefore(EditLine *, int);
160 protected void	 c_delbefore1(EditLine *);
161 protected void	 c_delafter(EditLine *, int);
162 protected void	 c_delafter1(EditLine *);
163 protected int	 c_gets(EditLine *, Char *, const Char *);
164 protected int	 c_hpos(EditLine *);
165 
166 protected int	 ch_init(EditLine *);
167 protected void	 ch_reset(EditLine *, int);
168 protected int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
169 protected int	 ch_enlargebufs(EditLine *, size_t);
170 protected void	 ch_end(EditLine *);
171 
172 #endif /* _h_el_chared */
173