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
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
|
/* $OpenBSD: def.h,v 1.108 2008/09/15 16:13:35 kjell Exp $ */
/* This file is in the public domain. */
/*
* This file is the general header file for all parts
* of the Mg display editor. It contains all of the
* general definitions and macros. It also contains some
* conditional compilation flags. All of the per-system and
* per-terminal definitions are in special header files.
*/
#include "sysdef.h" /* Order is critical. */
#include "ttydef.h"
#include "chrdef.h"
#ifdef NO_MACRO
#ifndef NO_STARTUP
#define NO_STARTUP /* NO_MACRO implies NO_STARTUP */
#endif
#endif
typedef int (*PF)(int, int); /* generally useful type */
/*
* Table sizes, etc.
*/
#define NFILEN 1024 /* Length, file name. */
#define NBUFN NFILEN /* Length, buffer name. */
#define NLINE 256 /* Length, line. */
#define PBMODES 4 /* modes per buffer */
#define NKBDM 256 /* Length, keyboard macro. */
#define NPAT 80 /* Length, pattern. */
#define HUGE 1000 /* A rather large number. */
#define NSRCH 128 /* Undoable search commands. */
#define NXNAME 64 /* Length, extended command. */
#define NKNAME 20 /* Length, key names. */
#define NTIME 50 /* Length, timestamp string. */
/*
* Universal.
*/
#define FALSE 0 /* False, no, bad, etc. */
#define TRUE 1 /* True, yes, good, etc. */
#define ABORT 2 /* Death, ^G, abort, etc. */
#define KCLEAR 2 /* clear echo area */
/*
* These flag bits keep track of
* some aspects of the last command. The CFCPCN
* flag controls goal column setting. The CFKILL
* flag controls the clearing versus appending
* of data in the kill buffer.
*/
#define CFCPCN 0x0001 /* Last command was C-P, C-N */
#define CFKILL 0x0002 /* Last command was a kill */
#define CFINS 0x0004 /* Last command was self-insert */
/*
* File I/O.
*/
#define FIOSUC 0 /* Success. */
#define FIOFNF 1 /* File not found. */
#define FIOEOF 2 /* End of file. */
#define FIOERR 3 /* Error. */
#define FIOLONG 4 /* long line partially read */
#define FIODIR 5 /* File is a directory */
/*
* Directory I/O.
*/
#define DIOSUC 0 /* Success. */
#define DIOEOF 1 /* End of file. */
#define DIOERR 2 /* Error. */
/*
* Display colors.
*/
#define CNONE 0 /* Unknown color. */
#define CTEXT 1 /* Text color. */
#define CMODE 2 /* Mode line color. */
/*
* Flags for keyboard invoked functions.
*/
#define FFUNIV 1 /* universal argument */
#define FFNEGARG 2 /* negative only argument */
#define FFOTHARG 4 /* other argument */
#define FFARG 7 /* any argument */
#define FFRAND 8 /* Called by other function */
/*
* Flags for "eread".
*/
#define EFFUNC 0x0001 /* Autocomplete functions. */
#define EFBUF 0x0002 /* Autocomplete buffers. */
#define EFFILE 0x0004 /* " files (maybe someday) */
#define EFAUTO 0x0007 /* Some autocompletion on */
#define EFNEW 0x0008 /* New prompt. */
#define EFCR 0x0010 /* Echo CR at end; last read. */
#define EFDEF 0x0020 /* buffer contains default args */
#define EFNUL 0x0040 /* Null Minibuffer OK */
/*
* Direction of insert into kill ring
*/
#define KNONE 0
#define KFORW 1
#define KBACK 2
/*
* This structure holds the starting position
* (as a line/offset pair) and the number of characters in a
* region of a buffer. This makes passing the specification
* of a region around a little bit easier.
*/
struct region {
struct line *r_linep; /* Origin line address. */
int r_offset; /* Origin line offset. */
RSIZE r_size; /* Length in characters. */
};
/*
* All text is kept in circularly linked
* lists of "line" structures. These begin at the
* header line (which is the blank line beyond the
* end of the buffer). This line is pointed to by
* the "buffer" structure. Each line contains the number of
* bytes in the line (the "used" size), the size
* of the text array, and the text. The end of line
* is not stored as a byte; it's implied. Future
* additions will include update hints, and a
* list of marks into the line.
*/
struct line {
struct line *l_fp; /* Link to the next line */
struct line *l_bp; /* Link to the previous line */
int l_size; /* Allocated size */
int l_used; /* Used size */
char *l_text; /* Content of the line */
};
/*
* The rationale behind these macros is that you
* could (with some editing, like changing the type of a line
* link from a "struct line *" to a "REFLINE", and fixing the commands
* like file reading that break the rules) change the actual
* storage representation of lines to use something fancy on
* machines with small address spaces.
*/
#define lforw(lp) ((lp)->l_fp)
#define lback(lp) ((lp)->l_bp)
#define lgetc(lp, n) (CHARMASK((lp)->l_text[(n)]))
#define lputc(lp, n, c) ((lp)->l_text[(n)]=(c))
#define llength(lp) ((lp)->l_used)
#define ltext(lp) ((lp)->l_text)
/*
* All repeated structures are kept as linked lists of structures.
* All of these start with a LIST structure (except lines, which
* have their own abstraction). This will allow for
* later conversion to generic list manipulation routines should
* I decide to do that. It does mean that there are four extra
* bytes per window. I feel that this is an acceptable price,
* considering that there are usually only one or two windows.
*/
struct list {
union {
struct mgwin *l_wp;
struct buffer *x_bp; /* l_bp is used by struct line */
struct list *l_nxt;
} l_p;
char *l_name;
};
/*
* Usual hack - to keep from uglifying the code with lotsa
* references through the union, we #define something for it.
*/
#define l_next l_p.l_nxt
/*
* There is a window structure allocated for
* every active display window. The windows are kept in a
* big list, in top to bottom screen order, with the listhead at
* "wheadp". Each window contains its own values of dot and mark.
* The flag field contains some bits that are set by commands
* to guide redisplay; although this is a bit of a compromise in
* terms of decoupling, the full blown redisplay is just too
* expensive to run for every input character.
*/
struct mgwin {
struct list w_list; /* List header */
struct buffer *w_bufp; /* Buffer displayed in window */
struct line *w_linep; /* Top line in the window */
struct line *w_dotp; /* Line containing "." */
struct line *w_markp; /* Line containing "mark" */
int w_doto; /* Byte offset for "." */
int w_marko; /* Byte offset for "mark" */
char w_toprow; /* Origin 0 top row of window */
char w_ntrows; /* # of rows of text in window */
char w_frame; /* #lines to reframe by. */
char w_flag; /* Flags. */
struct line *w_wrapline;
int w_dotline; /* current line number of dot */
int w_markline; /* current line number of mark */
};
#define w_wndp w_list.l_p.l_wp
#define w_name w_list.l_name
/*
* Window flags are set by command processors to
* tell the display system what has happened to the buffer
* mapped by the window. Setting "WFFULL" is always a safe thing
* to do, but it may do more work than is necessary. Always try
* to set the simplest action that achieves the required update.
* Because commands set bits in the "w_flag", update will see
* all change flags, and do the most general one.
*/
#define WFFRAME 0x01 /* Force reframe. */
#define WFMOVE 0x02 /* Movement from line to line. */
#define WFEDIT 0x04 /* Editing within a line. */
#define WFFULL 0x08 /* Do a full display. */
#define WFMODE 0x10 /* Update mode line. */
struct undo_rec;
/*
* Text is kept in buffers. A buffer header, described
* below, exists for every buffer in the system. The buffers are
* kept in a big list, so that commands that search for a buffer by
* name can find the buffer header. There is a safe store for the
* dot and mark in the header, but this is only valid if the buffer
* is not being displayed (that is, if "b_nwnd" is 0). The text for
* the buffer is kept in a circularly linked list of lines, with
* a pointer to the header line in "b_headp".
*/
struct buffer {
struct list b_list; /* buffer list pointer */
struct buffer *b_altb; /* Link to alternate buffer */
struct line *b_dotp; /* Link to "." line structure */
struct line *b_markp; /* ditto for mark */
struct line *b_headp; /* Link to the header line */
struct maps_s *b_modes[PBMODES]; /* buffer modes */
int b_doto; /* Offset of "." in above line */
int b_marko; /* ditto for the "mark" */
short b_nmodes; /* number of non-fundamental modes */
char b_nwnd; /* Count of windows on buffer */
char b_flag; /* Flags */
char b_fname[NFILEN]; /* File name */
char b_cwd[NFILEN]; /* working directory */
struct fileinfo b_fi; /* File attributes */
LIST_HEAD(, undo_rec) b_undo; /* Undo actions list */
int b_undopos; /* Where we were during last undo */
struct undo_rec *b_undoptr;
int b_dotline; /* Line number of dot */
int b_markline; /* Line number of mark */
int b_lines; /* Number of lines in file */
};
#define b_bufp b_list.l_p.x_bp
#define b_bname b_list.l_name
/* Some helper macros, in case they ever change to functions */
#define bfirstlp(buf) (lforw((buf)->b_headp))
#define blastlp(buf) (lback((buf)->b_headp))
#define BFCHG 0x01 /* Changed. */
#define BFBAK 0x02 /* Need to make a backup. */
#ifdef NOTAB
#define BFNOTAB 0x04 /* no tab mode */
#endif
#define BFOVERWRITE 0x08 /* overwrite mode */
#define BFREADONLY 0x10 /* read only mode */
#define BFDIRTY 0x20 /* Buffer was modified elsewhere */
#define BFIGNDIRTY 0x40 /* Ignore modifications */
/*
* This structure holds information about recent actions for the Undo command.
*/
struct undo_rec {
LIST_ENTRY(undo_rec) next;
enum {
INSERT = 1,
DELETE,
BOUNDARY,
MODIFIED
} type;
struct region region;
int pos;
char *content;
};
/*
* Prototypes.
*/
/* tty.c X */
void ttinit(void);
void ttreinit(void);
void tttidy(void);
void ttmove(int, int);
void tteeol(void);
void tteeop(void);
void ttbeep(void);
void ttinsl(int, int, int);
void ttdell(int, int, int);
void ttwindow(int, int);
void ttnowindow(void);
void ttcolor(int);
void ttresize(void);
volatile sig_atomic_t winch_flag;
/* ttyio.c */
void ttopen(void);
int ttraw(void);
void ttclose(void);
int ttcooked(void);
int ttputc(int);
void ttflush(void);
int ttgetc(void);
int ttwait(int);
int charswaiting(void);
/* dir.c */
void dirinit(void);
int changedir(int, int);
int showcwdir(int, int);
int getcwdir(char *, size_t);
/* dired.c */
struct buffer *dired_(char *);
/* file.c X */
int fileinsert(int, int);
int filevisit(int, int);
int filevisitalt(int, int);
int filevisitro(int, int);
int poptofile(int, int);
struct buffer *findbuffer(char *);
int readin(char *);
int insertfile(char *, char *, int);
int filewrite(int, int);
int filesave(int, int);
int buffsave(struct buffer *);
int makebkfile(int, int);
int writeout(struct buffer *, char *);
void upmodes(struct buffer *);
/* line.c X */
struct line *lalloc(int);
int lrealloc(struct line *, int);
void lfree(struct line *);
void lchange(int);
int linsert_str(const char *, int);
int linsert(int, int);
int lnewline_at(struct line *, int);
int lnewline(void);
int ldelete(RSIZE, int);
int ldelnewline(void);
int lreplace(RSIZE, char *);
char * linetostr(const struct line *);
/* yank.c X */
void kdelete(void);
int kinsert(int, int);
int kremove(int);
int kchunk(char *, RSIZE, int);
int killline(int, int);
int yank(int, int);
/* window.c X */
struct mgwin *new_window(struct buffer *);
void free_window(struct mgwin *);
int reposition(int, int);
int redraw(int, int);
int do_redraw(int, int, int);
int nextwind(int, int);
int prevwind(int, int);
int onlywind(int, int);
int splitwind(int, int);
int enlargewind(int, int);
int shrinkwind(int, int);
int delwind(int, int);
struct mgwin *wpopup(void);
/* buffer.c */
int togglereadonly(int, int);
struct buffer *bfind(const char *, int);
int poptobuffer(int, int);
int killbuffer(struct buffer *);
int killbuffer_cmd(int, int);
int savebuffers(int, int);
int listbuffers(int, int);
int addlinef(struct buffer *, char *, ...);
#define addline(bp, text) addlinef(bp, "%s", text)
int anycb(int);
int bclear(struct buffer *);
int showbuffer(struct buffer *, struct mgwin *, int);
int augbname(char *, const char *, size_t);
struct mgwin *popbuf(struct buffer *);
int bufferinsert(int, int);
int usebuffer(int, int);
int notmodified(int, int);
int popbuftop(struct buffer *);
int getbufcwd(char *, size_t);
int checkdirty(struct buffer *);
/* display.c */
int vtresize(int, int, int);
void vtinit(void);
void vttidy(void);
void update(void);
int linenotoggle(int, int);
/* echo.c X */
void eerase(void);
int eyorn(const char *);
int eyesno(const char *);
void ewprintf(const char *fmt, ...);
char *ereply(const char *, char *, size_t, ...);
char *eread(const char *, char *, size_t, int, ...);
int getxtra(struct list *, struct list *, int, int);
void free_file_list(struct list *);
/* fileio.c */
int ffropen(const char *, struct buffer *);
void ffstat(struct buffer *);
int ffwopen(const char *, struct buffer *);
int ffclose(struct buffer *);
int ffputbuf(struct buffer *);
int ffgetline(char *, int, int *);
int fbackupfile(const char *);
char *adjustname(const char *, int);
char *startupfile(char *);
int copy(char *, char *);
struct list *make_file_list(char *);
int fisdir(const char *);
int fchecktime(struct buffer *);
int fupdstat(struct buffer *);
/* kbd.c X */
int do_meta(int, int);
int bsmap(int, int);
void ungetkey(int);
int getkey(int);
int doin(void);
int rescan(int, int);
int universal_argument(int, int);
int digit_argument(int, int);
int negative_argument(int, int);
int selfinsert(int, int);
int quote(int, int);
/* main.c */
int ctrlg(int, int);
int quit(int, int);
/* ttyio.c */
void panic(char *);
/* cinfo.c */
char *getkeyname(char *, size_t, int);
/* basic.c */
int gotobol(int, int);
int backchar(int, int);
int gotoeol(int, int);
int forwchar(int, int);
int gotobob(int, int);
int gotoeob(int, int);
int forwline(int, int);
int backline(int, int);
void setgoal(void);
int getgoal(struct line *);
int forwpage(int, int);
int backpage(int, int);
int forw1page(int, int);
int back1page(int, int);
int pagenext(int, int);
void isetmark(void);
int setmark(int, int);
int clearmark(int, int);
int swapmark(int, int);
int gotoline(int, int);
/* random.c X */
int showcpos(int, int);
int getcolpos(void);
int twiddle(int, int);
int openline(int, int);
int newline(int, int);
int deblank(int, int);
int justone(int, int);
int delwhite(int, int);
int delleadwhite(int, int);
int deltrailwhite(int, int);
int lfindent(int, int);
int indent(int, int);
int forwdel(int, int);
int backdel(int, int);
int space_to_tabstop(int, int);
/* extend.c X */
int insert(int, int);
int bindtokey(int, int);
int localbind(int, int);
int redefine_key(int, int);
int unbindtokey(int, int);
int localunbind(int, int);
int extend(int, int);
int evalexpr(int, int);
int evalbuffer(int, int);
int evalfile(int, int);
int load(const char *);
int excline(char *);
/* help.c X */
int desckey(int, int);
int wallchart(int, int);
int help_help(int, int);
int apropos_command(int, int);
/* paragraph.c X */
int gotobop(int, int);
int gotoeop(int, int);
int fillpara(int, int);
int killpara(int, int);
int fillword(int, int);
int setfillcol(int, int);
/* word.c X */
int backword(int, int);
int forwword(int, int);
int upperword(int, int);
int lowerword(int, int);
int capword(int, int);
int delfword(int, int);
int delbword(int, int);
int inword(void);
/* region.c X */
int killregion(int, int);
int copyregion(int, int);
int lowerregion(int, int);
int upperregion(int, int);
int prefixregion(int, int);
int setprefix(int, int);
int region_get_data(struct region *, char *, int);
void region_put_data(const char *, int);
/* search.c X */
int forwsearch(int, int);
int backsearch(int, int);
int searchagain(int, int);
int forwisearch(int, int);
int backisearch(int, int);
int queryrepl(int, int);
int forwsrch(void);
int backsrch(void);
int readpattern(char *);
/* spawn.c X */
int spawncli(int, int);
/* ttykbd.c X */
void ttykeymapinit(void);
void ttykeymaptidy(void);
/* match.c X */
int showmatch(int, int);
/* version.c X */
int showversion(int, int);
#ifndef NO_MACRO
/* macro.c X */
int definemacro(int, int);
int finishmacro(int, int);
int executemacro(int, int);
#endif /* !NO_MACRO */
/* modes.c X */
int indentmode(int, int);
int fillmode(int, int);
int blinkparen(int, int);
#ifdef NOTAB
int notabmode(int, int);
#endif /* NOTAB */
int overwrite_mode(int, int);
int set_default_mode(int,int);
#ifdef REGEX
/* re_search.c X */
int re_forwsearch(int, int);
int re_backsearch(int, int);
int re_searchagain(int, int);
int re_queryrepl(int, int);
int replstr(int, int);
int setcasefold(int, int);
int delmatchlines(int, int);
int delnonmatchlines(int, int);
int cntmatchlines(int, int);
int cntnonmatchlines(int, int);
#endif /* REGEX */
/* undo.c X */
void free_undo_record(struct undo_rec *);
int undo_dump(int, int);
int undo_enabled(void);
int undo_enable(int, int);
int undo_add_boundary(int, int);
void undo_add_modified(void);
int undo_add_insert(struct line *, int, int);
int undo_add_delete(struct line *, int, int);
int undo_boundary_enable(int, int);
int undo_add_change(struct line *, int, int);
int undo(int, int);
/* autoexec.c X */
int auto_execute(int, int);
PF *find_autoexec(const char *);
int add_autoexec(const char *, const char *);
/* mail.c X */
void mail_init(void);
/* cmode.c X */
int cmode(int, int);
int cc_brace(int, int);
int cc_char(int, int);
int cc_tab(int, int);
int cc_indent(int, int);
int cc_lfindent(int, int);
/* grep.c X */
int next_error(int, int);
int globalwdtoggle(int, int);
int compile(int, int);
/*
* Externals.
*/
extern struct buffer *bheadp;
extern struct buffer *curbp;
extern struct mgwin *curwp;
extern struct mgwin *wheadp;
extern int thisflag;
extern int lastflag;
extern int curgoal;
extern int startrow;
extern int epresf;
extern int sgarbf;
extern int mode;
extern int nrow;
extern int ncol;
extern int ttrow;
extern int ttcol;
extern int tttop;
extern int ttbot;
extern int tthue;
extern int defb_nmodes;
extern int defb_flag;
extern const char cinfo[];
extern char *keystrings[];
extern char pat[NPAT];
#ifndef NO_DPROMPT
extern char prompt[];
#endif /* !NO_DPROMPT */
/*
* Globals.
*/
int tceeol;
int tcinsl;
int tcdell;
int rptcount; /* successive invocation count */
|