el.h revision 1.48 1 /* $NetBSD: el.h,v 1.48 2025/01/03 00:40:08 rillig 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 * @(#)el.h 8.1 (Berkeley) 6/4/93
35 */
36
37 /*
38 * el.h: Internal structures.
39 */
40 #ifndef _h_el
41 #define _h_el
42 /*
43 * Local defaults
44 */
45 #define KSHVI
46 #define VIDEFAULT
47 #define ANCHOR
48
49 #include "histedit.h"
50 #include "chartype.h"
51
52 #define EL_BUFSIZ ((size_t)1024) /* Maximum line size */
53
54 #define HANDLE_SIGNALS 0x001
55 #define NO_TTY 0x002
56 #define EDIT_DISABLED 0x004
57 #define UNBUFFERED 0x008
58 #define NARROW_HISTORY 0x040
59 #define NO_RESET 0x080
60 #define FIXIO 0x100
61 #define FROM_ELLINE 0x200
62
63 typedef unsigned char el_action_t; /* Index to command array */
64
65 typedef struct coord_t { /* Position on the screen */
66 int h;
67 int v;
68 } coord_t;
69
70 typedef struct el_line_t {
71 wchar_t *buffer; /* Input line */
72 wchar_t *cursor; /* Cursor position */
73 wchar_t *lastchar; /* Last character */
74 const wchar_t *limit; /* Max position */
75 } el_line_t;
76
77 /*
78 * Editor state
79 */
80 typedef struct el_state_t {
81 int inputmode; /* What mode are we in? */
82 int doingarg; /* Are we getting an argument? */
83 int argument; /* Numeric argument */
84 int metanext; /* Is the next char a meta char */
85 el_action_t lastcmd; /* Previous command */
86 el_action_t thiscmd; /* this command */
87 wchar_t thisch; /* char that generated it */
88 } el_state_t;
89
90 /*
91 * Until we come up with something better...
92 */
93 #define el_malloc(a) malloc(a)
94 #define el_calloc(a,b) calloc(a, b)
95 #define el_realloc(a,b) realloc(a, b)
96 #define el_free(a) free(a)
97
98 #include "tty.h"
99 #include "prompt.h"
100 #include "literal.h"
101 #include "keymacro.h"
102 #include "terminal.h"
103 #include "refresh.h"
104 #include "chared.h"
105 #include "search.h"
106 #include "hist.h"
107 #include "map.h"
108 #include "sig.h"
109
110 struct el_read_t;
111
112 struct editline {
113 wchar_t *el_prog; /* the program name */
114 FILE *el_infile; /* Stdio stuff */
115 FILE *el_outfile; /* Stdio stuff */
116 FILE *el_errfile; /* Stdio stuff */
117 int el_infd; /* Input file descriptor */
118 int el_outfd; /* Output file descriptor */
119 int el_errfd; /* Error file descriptor */
120 int el_flags; /* Various flags. */
121 coord_t el_cursor; /* Cursor location */
122 wint_t **el_display; /* Real screen image = what is there */
123 wint_t **el_vdisplay; /* Virtual screen image = what we see */
124 void *el_data; /* Client data */
125 el_line_t el_line; /* The current line information */
126 el_state_t el_state; /* Current editor state */
127 el_terminal_t el_terminal; /* Terminal dependent stuff */
128 el_tty_t el_tty; /* Tty dependent stuff */
129 el_refresh_t el_refresh; /* Refresh stuff */
130 el_prompt_t el_prompt; /* Prompt stuff */
131 el_prompt_t el_rprompt; /* Prompt stuff */
132 el_literal_t el_literal; /* prompt literal bits */
133 el_chared_t el_chared; /* Characted editor stuff */
134 el_map_t el_map; /* Key mapping stuff */
135 el_keymacro_t el_keymacro; /* Key binding stuff */
136 el_history_t el_history; /* History stuff */
137 el_search_t el_search; /* Search stuff */
138 el_signal_t el_signal; /* Signal handling stuff */
139 struct el_read_t *el_read; /* Character reading stuff */
140 ct_buffer_t el_visual; /* Buffer for displayable str */
141 ct_buffer_t el_scratch; /* Scratch conversion buffer */
142 ct_buffer_t el_lgcyconv; /* Buffer for legacy wrappers */
143 LineInfo el_lgcylinfo; /* Legacy LineInfo buffer */
144 };
145
146 libedit_private int el_editmode(EditLine *, int, const wchar_t **);
147 libedit_private EditLine *el_init_internal(const char *, FILE *, FILE *,
148 FILE *, int, int, int, int);
149
150 #ifdef DEBUG
151 #define EL_ABORT(a) do { \
152 fprintf(el->el_errfile, "%s, %d: ", \
153 __FILE__, __LINE__); \
154 fprintf a; \
155 abort(); \
156 } while (0)
157 #else
158 #define EL_ABORT(a) abort()
159 #endif
160 #endif /* _h_el */
161