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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
/* $NetBSD: screen.h,v 1.3 2013/11/25 22:43:46 christos Exp $ */
/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*
* Id: screen.h,v 10.49 2002/03/02 23:47:02 skimo Exp (Berkeley) Date: 2002/03/02 23:47:02
*/
/*
* There are minimum values that vi has to have to display a screen. The row
* minimum is fixed at 1 (the svi code can share a line between the text line
* and the colon command/message line). Column calculation is a lot trickier.
* For example, you have to have enough columns to display the line number,
* not to mention guaranteeing that tabstop and shiftwidth values are smaller
* than the current column value. It's simpler to have a fixed value and not
* worry about it.
*
* XXX
* MINIMUM_SCREEN_COLS is almost certainly wrong.
*/
#define MINIMUM_SCREEN_ROWS 1
#define MINIMUM_SCREEN_COLS 20
/*
* WIN --
* A list of screens that are displayed as a whole.
*/
struct _win {
TAILQ_ENTRY(_win) q; /* Windows. */
TAILQ_HEAD(_scrh, _scr) scrq; /* Screens */
GS *gp; /* Pointer to global area. */
SCR *ccl_sp; /* Colon command-line screen. */
void *perl_private; /* Perl interpreter. */
void *ip_private; /* IP support private area. */
void *th_private; /* Threading support private area. */
/*
* Ex command structures (EXCMD). Defined here because ex commands
* exist outside of any particular screen or file.
*/
#define EXCMD_RUNNING(wp) ((wp)->ecq.lh_first->clen != 0)
LIST_HEAD(_excmdh, _excmd) ecq; /* Ex command linked list. */
EXCMD excmd; /* Default ex command structure. */
char *if_name; /* Current associated file. */
db_recno_t if_lno; /* Current associated line number. */
EVENT *i_event; /* Array of input events. */
size_t i_nelem; /* Number of array elements. */
size_t i_cnt; /* Count of events. */
size_t i_next; /* Offset of next event. */
CB *dcbp; /* Default cut buffer pointer. */
CB dcb_store; /* Default cut buffer storage. */
LIST_HEAD(_cuth, _cb) cutq; /* Linked list of cut buffers. */
/* For now, can be either char or CHAR_T buffer */
char *tmp_bp; /* Temporary buffer. */
size_t tmp_blen; /* Temporary buffer size. */
char *l_lp; /* Log buffer. */
size_t l_len; /* Log buffer length. */
CONVWIN cw;
/* Flags. */
#define W_TMP_INUSE 0x0001 /* Temporary buffer in use. */
u_int32_t flags;
/* Message or ex output. */
void (*scr_msg) __P((SCR *, mtype_t, char *, size_t));
};
/*
* SCR --
* The screen structure. To the extent possible, all screen information
* is stored in the various private areas. The only information here
* is used by global routines or is shared by too many screens.
*/
struct _scr {
/* INITIALIZED AT SCREEN CREATE. */
TAILQ_ENTRY(_scr) q; /* Screens. */
TAILQ_ENTRY(_scr) eq; /* Screens. */
int id; /* Screen id #. */
int refcnt; /* Reference count. */
WIN *wp; /* Pointer to window. */
GS *gp; /* Pointer to global area. */
SCR *nextdisp; /* Next display screen. */
SCR *ccl_parent; /* Colon command-line parent screen. */
EXF *ep; /* Screen's current EXF structure. */
CHAR_T *c_lp; /* Cached line. */
size_t c_len; /* Cached line length. */
/* May move out again once we use DB
* to cache internal representation
*/
size_t c_blen; /* Cached line buffer length. */
db_recno_t c_lno; /* Cached line number. */
FREF *frp; /* FREF being edited. */
char **argv; /* NULL terminated file name array. */
char **cargv; /* Current file name. */
u_long ccnt; /* Command count. */
u_long q_ccnt; /* Quit or ZZ command count. */
/* Screen's: */
size_t rows; /* 1-N: number of rows. */
size_t cols; /* 1-N: number of columns. */
size_t t_rows; /* 1-N: cur number of text rows. */
size_t t_maxrows; /* 1-N: max number of text rows. */
size_t t_minrows; /* 1-N: min number of text rows. */
size_t coff; /* 0-N: screen col offset in display. */
size_t roff; /* 0-N: screen row offset in display. */
/* Cursor's: */
db_recno_t lno; /* 1-N: file line. */
size_t cno; /* 0-N: file character in line. */
size_t rcm; /* Vi: 0-N: Most attractive column. */
#define L_ADDED 0 /* Added lines. */
#define L_CHANGED 1 /* Changed lines. */
#define L_DELETED 2 /* Deleted lines. */
#define L_JOINED 3 /* Joined lines. */
#define L_MOVED 4 /* Moved lines. */
#define L_SHIFT 5 /* Shift lines. */
#define L_YANKED 6 /* Yanked lines. */
db_recno_t rptlchange; /* Ex/vi: last L_CHANGED lno. */
db_recno_t rptlines[L_YANKED + 1];/* Ex/vi: lines changed by last op. */
TEXTH tiq; /* Ex/vi: text input queue. */
SCRIPT *script; /* Vi: script mode information .*/
db_recno_t defscroll; /* Vi: ^D, ^U scroll information. */
/* Display character. */
u_char cname[MAX_CHARACTER_COLUMNS + 1];
size_t clen; /* Length of display character. */
enum { /* Vi editor mode. */
SM_APPEND = 0, SM_CHANGE, SM_COMMAND, SM_INSERT,
SM_REPLACE } showmode;
void *ex_private; /* Ex private area. */
void *vi_private; /* Vi private area. */
void *perl_private; /* Perl private area. */
void *cl_private; /* Curses private area. */
CONV conv;
struct _log_state state; /* State during log traversal. */
/* PARTIALLY OR COMPLETELY COPIED FROM PREVIOUS SCREEN. */
char *alt_name; /* Ex/vi: alternate file name. */
ARG_CHAR_T at_lbuf; /* Ex/vi: Last executed at buffer. */
/* Ex/vi: re_compile flags. */
#define RE_WSTART L("[[:<:]]") /* Ex/vi: not-in-word search pattern. */
#define RE_WSTOP L("[[:>:]]")
#define RE_WSTART_LEN (sizeof(RE_WSTART)/sizeof(CHAR_T)-1)
#define RE_WSTOP_LEN (sizeof(RE_WSTOP)/sizeof(CHAR_T)-1)
/* Ex/vi: flags to search routines. */
#define SEARCH_CSCOPE 0x000001 /* Search for a cscope pattern. */
#define SEARCH_CSEARCH 0x000002 /* Compile search replacement. */
#define SEARCH_CSUBST 0x000004 /* Compile substitute replacement. */
#define SEARCH_EOL 0x000008 /* Offset past EOL is okay. */
#define SEARCH_EXTEND 0x000010 /* Extended RE. */
#define SEARCH_FIRST 0x000020 /* Search from the first line. */
#define SEARCH_IC 0x000040 /* Ignore case. */
#define SEARCH_ICL 0x000080 /* Ignore case. */
#define SEARCH_INCR 0x000100 /* Search incrementally. */
#define SEARCH_LITERAL 0x000200 /* Literal string. */
#define SEARCH_MSG 0x000400 /* Display search messages. */
#define SEARCH_NOOPT 0x000800 /* Ignore edit options. */
#define SEARCH_PARSE 0x001000 /* Parse the search pattern. */
#define SEARCH_SET 0x002000 /* Set search direction. */
#define SEARCH_TAG 0x004000 /* Search for a tag pattern. */
#define SEARCH_WMSG 0x008000 /* Display search-wrapped messages. */
#define SEARCH_WRAP 0x010000 /* Wrap past sof/eof. */
/* Ex/vi: RE information. */
dir_t searchdir; /* Last file search direction. */
regex_t re_c; /* Search RE: compiled form. */
CHAR_T *re; /* Search RE: uncompiled form. */
size_t re_len; /* Search RE: uncompiled length. */
regex_t subre_c; /* Substitute RE: compiled form. */
CHAR_T *subre; /* Substitute RE: uncompiled form. */
size_t subre_len; /* Substitute RE: uncompiled length). */
CHAR_T *repl; /* Substitute replacement. */
size_t repl_len; /* Substitute replacement length.*/
size_t *newl; /* Newline offset array. */
size_t newl_len; /* Newline array size. */
size_t newl_cnt; /* Newlines in replacement. */
u_int8_t c_suffix; /* Edcompatible 'c' suffix value. */
u_int8_t g_suffix; /* Edcompatible 'g' suffix value. */
OPTION opts[O_OPTIONCOUNT]; /* Ex/vi: Options. */
/*
* Screen flags.
*
* Editor screens.
*/
#define SC_EX 0x00000001 /* Ex editor. */
#define SC_VI 0x00000002 /* Vi editor. */
/*
* Screen formatting flags, first major, then minor.
*
* SC_SCR_EX
* Ex screen, i.e. cooked mode.
* SC_SCR_VI
* Vi screen, i.e. raw mode.
* SC_SCR_EXWROTE
* The editor had to write on the screen behind curses' back, and we can't
* let curses change anything until the user agrees, e.g. entering the
* commands :!utility followed by :set. We have to switch back into the
* vi "editor" to read the user's command input, but we can't touch the
* rest of the screen because it's known to be wrong.
* SC_SCR_REFORMAT
* The expected presentation of the lines on the screen have changed,
* requiring that the intended screen lines be recalculated. Implies
* SC_SCR_REDRAW.
* SC_SCR_REDRAW
* The screen doesn't correctly represent the file; repaint it. Note,
* setting SC_SCR_REDRAW in the current window causes *all* windows to
* be repainted.
* SC_SCR_CENTER
* If the current line isn't already on the screen, center it.
* SC_SCR_TOP
* If the current line isn't already on the screen, put it at the to@.
*/
#define SC_SCR_EX 0x00000004 /* Screen is in ex mode. */
#define SC_SCR_VI 0x00000008 /* Screen is in vi mode. */
#define SC_SCR_EXWROTE 0x00000010 /* Ex overwrite: see comment above. */
#define SC_SCR_REFORMAT 0x00000020 /* Reformat (refresh). */
#define SC_SCR_REDRAW 0x00000040 /* Refresh. */
#define SC_SCR_CENTER 0x00000080 /* Center the line if not visible. */
#define SC_SCR_TOP 0x00000100 /* Top the line if not visible. */
/* Screen/file changes. */
#define SC_EXIT 0x00000200 /* Exiting (not forced). */
#define SC_EXIT_FORCE 0x00000400 /* Exiting (forced). */
#define SC_FSWITCH 0x00000800 /* Switch underlying files. */
#define SC_SSWITCH 0x00001000 /* Switch screens. */
#define SC_ARGNOFREE 0x00002000 /* Argument list wasn't allocated. */
#define SC_ARGRECOVER 0x00004000 /* Argument list is recovery files. */
#define SC_AT_SET 0x00008000 /* Last at buffer set. */
#define SC_COMEDIT 0x00010000 /* Colon command-line edit window. */
#define SC_EX_GLOBAL 0x00020000 /* Ex: executing a global command. */
#define SC_EX_SILENT 0x00040000 /* Ex: batch script. */
#define SC_EX_WAIT_NO 0x00080000 /* Ex: don't wait for the user. */
#define SC_EX_WAIT_YES 0x00100000 /* Ex: do wait for the user. */
#define SC_READONLY 0x00200000 /* Persistent readonly state. */
#define SC_RE_SEARCH 0x00400000 /* Search RE has been compiled. */
#define SC_RE_SUBST 0x00800000 /* Substitute RE has been compiled. */
#define SC_SCRIPT 0x01000000 /* Shell script window. */
#define SC_STATUS 0x02000000 /* Welcome message. */
#define SC_STATUS_CNT 0x04000000 /* Welcome message plus file count. */
#define SC_TINPUT 0x08000000 /* Doing text input. */
#define SC_TINPUT_INFO 0x10000000 /* Doing text input on info line. */
#define SC_CONV_ERROR 0x20000000 /* Met with a conversion error. */
u_int32_t flags;
int db_error; /* Return code from db function. */
};
|
