1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
// Built-in fallback terminfo entries.
#include <stdbool.h>
#include <string.h>
#include <unibilium.h>
#include "nvim/globals.h"
#include "nvim/log.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/option.h"
#include "nvim/os/os.h"
#include "nvim/tui/terminfo.h"
#include "nvim/tui/terminfo_defs.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "tui/terminfo.c.generated.h"
#endif
bool terminfo_is_term_family(const char *term, const char *family)
{
if (!term) {
return false;
}
size_t tlen = strlen(term);
size_t flen = strlen(family);
return tlen >= flen
&& 0 == memcmp(term, family, flen)
// Per commentary in terminfo, minus is the only valid suffix separator.
// The screen terminfo may have a terminal name like screen.xterm. By making
// the dot(.) a valid separator, such terminal names will also be the
// terminal family of the screen.
&& ('\0' == term[flen] || '-' == term[flen] || '.' == term[flen]);
}
bool terminfo_is_bsd_console(const char *term)
{
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \
|| defined(__DragonFly__)
if (strequal(term, "vt220") // OpenBSD
|| strequal(term, "vt100")) { // NetBSD
return true;
}
# if defined(__FreeBSD__)
// FreeBSD console sets TERM=xterm, but it does not support xterm features
// like cursor-shaping. Assume that TERM=xterm is degraded. #8644
return strequal(term, "xterm") && !!os_getenv("XTERM_VERSION");
# endif
#endif
return false;
}
/// Loads a built-in terminfo db when we (unibilium) failed to load a terminfo
/// record from the environment (termcap systems, unrecognized $TERM, …).
/// We do not attempt to detect xterm pretenders here.
///
/// @param term $TERM value
/// @param[out,allocated] termname decided builtin 'term' name
/// @return [allocated] terminfo structure
static unibi_term *terminfo_builtin(const char *term, char **termname)
{
if (terminfo_is_term_family(term, "xterm")) {
*termname = xstrdup("builtin_xterm");
return unibi_from_mem((const char *)xterm_256colour_terminfo,
sizeof xterm_256colour_terminfo);
} else if (terminfo_is_term_family(term, "screen")) {
*termname = xstrdup("builtin_screen");
return unibi_from_mem((const char *)screen_256colour_terminfo,
sizeof screen_256colour_terminfo);
} else if (terminfo_is_term_family(term, "tmux")) {
*termname = xstrdup("builtin_tmux");
return unibi_from_mem((const char *)tmux_256colour_terminfo,
sizeof tmux_256colour_terminfo);
} else if (terminfo_is_term_family(term, "rxvt")) {
*termname = xstrdup("builtin_rxvt");
return unibi_from_mem((const char *)rxvt_256colour_terminfo,
sizeof rxvt_256colour_terminfo);
} else if (terminfo_is_term_family(term, "putty")) {
*termname = xstrdup("builtin_putty");
return unibi_from_mem((const char *)putty_256colour_terminfo,
sizeof putty_256colour_terminfo);
} else if (terminfo_is_term_family(term, "linux")) {
*termname = xstrdup("builtin_linux");
return unibi_from_mem((const char *)linux_16colour_terminfo,
sizeof linux_16colour_terminfo);
} else if (terminfo_is_term_family(term, "interix")) {
*termname = xstrdup("builtin_interix");
return unibi_from_mem((const char *)interix_8colour_terminfo,
sizeof interix_8colour_terminfo);
} else if (terminfo_is_term_family(term, "iterm")
|| terminfo_is_term_family(term, "iterm2")
|| terminfo_is_term_family(term, "iTerm.app")
|| terminfo_is_term_family(term, "iTerm2.app")) {
*termname = xstrdup("builtin_iterm");
return unibi_from_mem((const char *)iterm_256colour_terminfo,
sizeof iterm_256colour_terminfo);
} else if (terminfo_is_term_family(term, "st")) {
*termname = xstrdup("builtin_st");
return unibi_from_mem((const char *)st_256colour_terminfo,
sizeof st_256colour_terminfo);
} else if (terminfo_is_term_family(term, "gnome")
|| terminfo_is_term_family(term, "vte")) {
*termname = xstrdup("builtin_vte");
return unibi_from_mem((const char *)vte_256colour_terminfo,
sizeof vte_256colour_terminfo);
} else if (terminfo_is_term_family(term, "cygwin")) {
*termname = xstrdup("builtin_cygwin");
return unibi_from_mem((const char *)cygwin_terminfo,
sizeof cygwin_terminfo);
} else if (terminfo_is_term_family(term, "win32con")) {
*termname = xstrdup("builtin_win32con");
return unibi_from_mem((const char *)win32con_terminfo,
sizeof win32con_terminfo);
} else if (terminfo_is_term_family(term, "conemu")) {
*termname = xstrdup("builtin_conemu");
return unibi_from_mem((const char *)conemu_terminfo,
sizeof conemu_terminfo);
} else if (terminfo_is_term_family(term, "vtpcon")) {
*termname = xstrdup("builtin_vtpcon");
return unibi_from_mem((const char *)vtpcon_terminfo,
sizeof vtpcon_terminfo);
} else {
*termname = xstrdup("builtin_ansi");
return unibi_from_mem((const char *)ansi_terminfo,
sizeof ansi_terminfo);
}
}
/// @param term $TERM value
/// @param[out,allocated] termname decided builtin 'term' name
/// @return [allocated] terminfo structure
unibi_term *terminfo_from_builtin(const char *term, char **termname)
{
unibi_term *ut = terminfo_builtin(term, termname);
if (*termname == NULL) {
*termname = xstrdup("builtin_?");
}
return ut;
}
/// Dumps termcap info to the messages area.
/// Serves a similar purpose as Vim `:set termcap` (removed in Nvim).
///
/// @note adapted from unibilium unibi-dump.c
void terminfo_info_msg(const unibi_term *const ut)
{
if (exiting) {
return;
}
msg_puts_title("\n\n--- Terminal info --- {{{\n");
char *term;
get_tty_option("term", &term);
msg_printf_attr(0, "&term: %s\n", term);
msg_printf_attr(0, "Description: %s\n", unibi_get_name(ut));
const char **a = unibi_get_aliases(ut);
if (*a) {
msg_puts("Aliases: ");
do {
msg_printf_attr(0, "%s%s\n", *a, a[1] ? " | " : "");
a++;
} while (*a);
}
msg_puts("Boolean capabilities:\n");
for (enum unibi_boolean i = unibi_boolean_begin_ + 1;
i < unibi_boolean_end_; i++) {
msg_printf_attr(0, " %-25s %-10s = %s\n", unibi_name_bool(i),
unibi_short_name_bool(i),
unibi_get_bool(ut, i) ? "true" : "false");
}
msg_puts("Numeric capabilities:\n");
for (enum unibi_numeric i = unibi_numeric_begin_ + 1;
i < unibi_numeric_end_; i++) {
int n = unibi_get_num(ut, i); // -1 means "empty"
msg_printf_attr(0, " %-25s %-10s = %d\n", unibi_name_num(i),
unibi_short_name_num(i), n);
}
msg_puts("String capabilities:\n");
for (enum unibi_string i = unibi_string_begin_ + 1;
i < unibi_string_end_; i++) {
const char *s = unibi_get_str(ut, i);
if (s) {
msg_printf_attr(0, " %-25s %-10s = ", unibi_name_str(i),
unibi_short_name_str(i));
// Most of these strings will contain escape sequences.
msg_outtrans_special(s, false, 0);
msg_putchar('\n');
}
}
if (unibi_count_ext_bool(ut)) {
msg_puts("Extended boolean capabilities:\n");
for (size_t i = 0; i < unibi_count_ext_bool(ut); i++) {
msg_printf_attr(0, " %-25s = %s\n",
unibi_get_ext_bool_name(ut, i),
unibi_get_ext_bool(ut, i) ? "true" : "false");
}
}
if (unibi_count_ext_num(ut)) {
msg_puts("Extended numeric capabilities:\n");
for (size_t i = 0; i < unibi_count_ext_num(ut); i++) {
msg_printf_attr(0, " %-25s = %d\n",
unibi_get_ext_num_name(ut, i),
unibi_get_ext_num(ut, i));
}
}
if (unibi_count_ext_str(ut)) {
msg_puts("Extended string capabilities:\n");
for (size_t i = 0; i < unibi_count_ext_str(ut); i++) {
msg_printf_attr(0, " %-25s = ", unibi_get_ext_str_name(ut, i));
msg_outtrans_special(unibi_get_ext_str(ut, i), false, 0);
msg_putchar('\n');
}
}
msg_puts("}}}\n");
xfree(term);
}
|
