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
235
236
237
238
239
|
/* $OpenBSD: main.c,v 1.53 2006/07/17 14:11:55 kjell Exp $ */
/* This file is in the public domain. */
/*
* Mainline.
*/
#include "def.h"
#include "kbd.h"
#include "funmap.h"
#ifndef NO_MACRO
#include "macro.h"
#endif /* NO_MACRO */
#include <err.h>
int thisflag; /* flags, this command */
int lastflag; /* flags, last command */
int curgoal; /* goal column */
int startrow; /* row to start */
struct buffer *curbp; /* current buffer */
struct buffer *bheadp; /* BUFFER list head */
struct mgwin *curwp; /* current window */
struct mgwin *wheadp; /* MGWIN listhead */
char pat[NPAT]; /* pattern */
static void edinit(PF);
static __dead void usage(void);
extern char *__progname;
static __dead void
usage()
{
fprintf(stderr, "usage: %s [+line] [-hn] [-f mode] [file ...]\n",
__progname);
exit(1);
}
int
main(int argc, char **argv)
{
char *cp, *init_fcn_name = NULL;
PF init_fcn = NULL;
int o, i, nfiles;
int nobackups = 0;
while ((o = getopt(argc, argv, "hnf:")) != -1)
switch (o) {
case 'n':
nobackups = 1;
break;
case 'f':
if (init_fcn_name != NULL)
errx(1, "cannot specify more than one "
"initial function");
init_fcn_name = optarg;
break;
case 'h':
/* FALLTHRU */
default:
usage();
}
argc -= optind;
argv += optind;
maps_init(); /* Keymaps and modes. */
funmap_init(); /* Functions. */
/*
* This is where we initialize standalone extensions that should
* be loaded dynamically sometime in the future.
*/
{
extern void grep_init(void);
extern void theo_init(void);
extern void mail_init(void);
extern void dired_init(void);
dired_init();
grep_init();
theo_init();
mail_init();
}
if (init_fcn_name &&
(init_fcn = name_function(init_fcn_name)) == NULL)
errx(1, "Unknown function `%s'", init_fcn_name);
vtinit(); /* Virtual terminal. */
dirinit(); /* Get current directory. */
edinit(init_fcn); /* Buffers, windows. */
ttykeymapinit(); /* Symbols, bindings. */
/*
* doing update() before reading files causes the error messages from
* the file I/O show up on the screen. (and also an extra display of
* the mode line if there are files specified on the command line.)
*/
update();
#ifndef NO_STARTUP
/* user startup file */
if ((cp = startupfile(NULL)) != NULL)
(void)load(cp);
#endif /* !NO_STARTUP */
if (nobackups)
makebkfile(FFARG, 0);
for (nfiles = 0, i = 0; i < argc; i++) {
if (argv[i][0] == '+' && strlen(argv[i]) >= 2) {
long long lval;
const char *errstr;
lval = strtonum(&argv[i][1], INT_MIN, INT_MAX, &errstr);
if (argv[i][1] == '\0' || errstr != NULL)
goto notnum;
startrow = lval;
} else {
notnum:
cp = adjustname(argv[i], FALSE);
if (cp != NULL) {
if (nfiles == 1)
splitwind(0, 1);
if ((curbp = findbuffer(cp)) == NULL) {
vttidy();
errx(1, "Can't find current buffer!");
}
(void)showbuffer(curbp, curwp, 0);
if (readin(cp) != TRUE)
killbuffer(curbp);
else {
if (init_fcn_name)
init_fcn(0, 1);
nfiles++;
}
}
}
}
if (nfiles > 2)
listbuffers(0, 1);
/* fake last flags */
thisflag = 0;
for (;;) {
if (epresf == KCLEAR)
eerase();
if (epresf == TRUE)
epresf = KCLEAR;
if (winch_flag) {
do_redraw(0, 0, TRUE);
winch_flag = 0;
}
update();
lastflag = thisflag;
thisflag = 0;
switch (doin()) {
case TRUE:
break;
case ABORT:
ewprintf("Quit");
/* FALLTHRU */
case FALSE:
default:
ttbeep();
#ifndef NO_MACRO
macrodef = FALSE;
#endif /* !NO_MACRO */
}
}
}
/*
* Initialize default buffer and window.
*/
static void
edinit(PF init_fcn)
{
struct buffer *bp;
struct mgwin *wp;
bheadp = NULL;
bp = bfind("*scratch*", TRUE); /* Text buffer. */
wp = new_window(bp);
if (wp == NULL)
panic("Out of memory");
if (bp == NULL || wp == NULL)
panic("edinit");
curbp = bp; /* Current ones. */
wheadp = wp;
curwp = wp;
wp->w_wndp = NULL; /* Initialize window. */
wp->w_linep = wp->w_dotp = bp->b_linep;
wp->w_ntrows = nrow - 2; /* 2 = mode, echo. */
wp->w_flag = WFMODE | WFFULL; /* Full. */
if (init_fcn)
init_fcn(0, 1);
}
/*
* Quit command. If an argument, always quit. Otherwise confirm if a buffer
* has been changed and not written out. Normally bound to "C-X C-C".
*/
/* ARGSUSED */
int
quit(int f, int n)
{
int s;
if ((s = anycb(FALSE)) == ABORT)
return (ABORT);
if (s == FALSE
|| eyesno("Modified buffers exist; really exit") == TRUE) {
vttidy();
#ifdef SYSCLEANUP
SYSCLEANUP;
#endif /* SYSCLEANUP */
exit(GOOD);
}
return (TRUE);
}
/*
* User abort. Should be called by any input routine that sees a C-g to abort
* whatever C-g is aborting these days. Currently does nothing.
*/
/* ARGSUSED */
int
ctrlg(int f, int n)
{
return (ABORT);
}
|
