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
227
228
229
230
231
232
233
234
|
/* $OpenBSD: help.c,v 1.33 2012/03/14 13:56:35 lum Exp $ */
/* This file is in the public domain. */
/*
* Help functions for Mg 2
*/
#include "def.h"
#include "funmap.h"
#include "kbd.h"
#include "key.h"
#ifndef NO_MACRO
#include "macro.h"
#endif /* !NO_MACRO */
static int showall(struct buffer *, KEYMAP *, char *);
static int findbind(KEYMAP *, PF, char *, size_t);
/*
* Read a key from the keyboard, and look it up in the keymap.
* Display the name of the function currently bound to the key.
*/
/* ARGSUSED */
int
desckey(int f, int n)
{
KEYMAP *curmap;
PF funct;
int c, m, i, num;
char *pep;
char dprompt[80];
#ifndef NO_MACRO
if (inmacro)
return (TRUE); /* ignore inside keyboard macro */
#endif /* !NO_MACRO */
num = strlcpy(dprompt, "Describe key briefly: ", sizeof(dprompt));
if (num >= sizeof(dprompt))
num = sizeof(dprompt) - 1;
pep = dprompt + num;
key.k_count = 0;
m = curbp->b_nmodes;
curmap = curbp->b_modes[m]->p_map;
for (;;) {
for (;;) {
ewprintf("%s", dprompt);
pep[-1] = ' ';
pep = getkeyname(pep, sizeof(dprompt) - (pep - dprompt),
key.k_chars[key.k_count++] = c = getkey(FALSE));
if ((funct = doscan(curmap, c, &curmap)) != NULL)
break;
*pep++ = '-';
*pep = '\0';
}
if (funct != rescan)
break;
if (ISUPPER(key.k_chars[key.k_count - 1])) {
funct = doscan(curmap,
TOLOWER(key.k_chars[key.k_count - 1]), &curmap);
if (funct == NULL) {
*pep++ = '-';
*pep = '\0';
continue;
}
if (funct != rescan)
break;
}
nextmode:
if (--m < 0)
break;
curmap = curbp->b_modes[m]->p_map;
for (i = 0; i < key.k_count; i++) {
funct = doscan(curmap, key.k_chars[i], &curmap);
if (funct != NULL) {
if (i == key.k_count - 1 && funct != rescan)
goto found;
funct = rescan;
goto nextmode;
}
}
*pep++ = '-';
*pep = '\0';
}
found:
if (funct == rescan || funct == selfinsert)
ewprintf("%k is not bound to any function");
else if ((pep = (char *)function_name(funct)) != NULL)
ewprintf("%k runs the command %s", pep);
else
ewprintf("%k is bound to an unnamed function");
return (TRUE);
}
/*
* This function creates a table, listing all of the command
* keys and their current bindings, and stores the table in the
* *help* pop-up buffer. This lets Mg produce it's own wall chart.
*/
/* ARGSUSED */
int
wallchart(int f, int n)
{
int m;
struct buffer *bp;
bp = bfind("*help*", TRUE);
if (bclear(bp) != TRUE)
/* clear it out */
return (FALSE);
bp->b_flag |= BFREADONLY;
for (m = curbp->b_nmodes; m > 0; m--) {
if ((addlinef(bp, "Local keybindings for mode %s:",
curbp->b_modes[m]->p_name) == FALSE) ||
(showall(bp, curbp->b_modes[m]->p_map, "") == FALSE) ||
(addline(bp, "") == FALSE))
return (FALSE);
}
if ((addline(bp, "Global bindings:") == FALSE) ||
(showall(bp, fundamental_map, "") == FALSE))
return (FALSE);
return (popbuftop(bp, WNONE));
}
static int
showall(struct buffer *bp, KEYMAP *map, char *prefix)
{
KEYMAP *newmap;
char buf[80], keybuf[16];
PF fun;
int c;
if (addline(bp, "") == FALSE)
return (FALSE);
/* XXX - 256 ? */
for (c = 0; c < 256; c++) {
fun = doscan(map, c, &newmap);
if (fun == rescan || fun == selfinsert)
continue;
getkeyname(buf, sizeof(buf), c);
(void)snprintf(keybuf, sizeof(keybuf), "%s%s ", prefix, buf);
if (fun == NULL) {
if (showall(bp, newmap, keybuf) == FALSE)
return (FALSE);
} else {
if (addlinef(bp, "%-16s%s", keybuf,
function_name(fun)) == FALSE)
return (FALSE);
}
}
return (TRUE);
}
int
help_help(int f, int n)
{
KEYMAP *kp;
PF funct;
if ((kp = name_map("help")) == NULL)
return (FALSE);
ewprintf("a b c: ");
do {
funct = doscan(kp, getkey(FALSE), NULL);
} while (funct == NULL || funct == help_help);
#ifndef NO_MACRO
if (macrodef && macrocount < MAXMACRO)
macro[macrocount - 1].m_funct = funct;
#endif /* !NO_MACRO */
return ((*funct)(f, n));
}
/* ARGSUSED */
int
apropos_command(int f, int n)
{
struct buffer *bp;
struct list *fnames, *el;
char string[32];
if (eread("apropos: ", string, sizeof(string), EFNUL | EFNEW) == NULL)
return (ABORT);
/* FALSE means we got a 0 character string, which is fine */
bp = bfind("*help*", TRUE);
if (bclear(bp) == FALSE)
return (FALSE);
fnames = complete_function_list("");
for (el = fnames; el != NULL; el = el->l_next) {
char buf[32];
if (strstr(el->l_name, string) == NULL)
continue;
buf[0] = '\0';
findbind(fundamental_map, name_function(el->l_name),
buf, sizeof(buf));
if (addlinef(bp, "%-32s%s", el->l_name, buf) == FALSE) {
free_file_list(fnames);
return (FALSE);
}
}
free_file_list(fnames);
return (popbuftop(bp, WNONE));
}
static int
findbind(KEYMAP *map, PF fun, char *buf, size_t len)
{
KEYMAP *newmap;
PF nfun;
char buf2[16], keybuf[16];
int c;
/* XXX - 256 ? */
for (c = 0; c < 256; c++) {
nfun = doscan(map, c, &newmap);
if (nfun == fun) {
getkeyname(buf, len, c);
return (TRUE);
}
if (nfun == NULL) {
if (findbind(newmap, fun, buf2, sizeof(buf2)) == TRUE) {
getkeyname(keybuf, sizeof(keybuf), c);
(void)snprintf(buf, len, "%s %s", keybuf, buf2);
return (TRUE);
}
}
}
return (FALSE);
}
|
