1 /*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1991, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
6 *
7 * See the LICENSE file for redistribution information.
8 */
9
10 #include "config.h"
11
12 #include <sys/types.h>
13 #include <sys/queue.h>
14 #include <sys/stat.h>
15
16 #include <bitstring.h>
17 #include <ctype.h>
18 #include <errno.h>
19 #include <limits.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <unctrl.h>
24 #include <unistd.h>
25
26 #include "common.h"
27 #include "../vi/vi.h"
28 #include "pathnames.h"
29
30 static int opts_abbcmp(const void *, const void *);
31 static int opts_cmp(const void *, const void *);
32 static int opts_print(SCR *, OPTLIST const *);
33
34 #ifdef USE_WIDECHAR
35 #define OPT_WC 0
36 #else
37 #define OPT_WC (OPT_NOSAVE | OPT_NDISP)
38 #endif
39
40 /*
41 * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
42 * Fifth Edition, May 1992. There's no way of knowing what systems they are
43 * actually from.
44 *
45 * HPUX noted options and abbreviations are from "The Ultimate Guide to the
46 * VI and EX Text Editors", 1990.
47 */
48 OPTLIST const optlist[] = {
49 /* O_ALTNOTATION */
50 {L("altnotation"), f_print, OPT_0BOOL, 0},
51 /* O_ALTWERASE 4.4BSD */
52 {L("altwerase"), f_altwerase, OPT_0BOOL, 0},
53 /* O_AUTOINDENT 4BSD */
54 {L("autoindent"), NULL, OPT_0BOOL, 0},
55 /* O_AUTOPRINT 4BSD */
56 {L("autoprint"), NULL, OPT_1BOOL, 0},
57 /* O_AUTOWRITE 4BSD */
58 {L("autowrite"), NULL, OPT_0BOOL, 0},
59 /* O_BACKUP 4.4BSD */
60 {L("backup"), NULL, OPT_STR, 0},
61 /* O_BEAUTIFY 4BSD */
62 {L("beautify"), NULL, OPT_0BOOL, 0},
63 /* O_CDPATH 4.4BSD */
64 {L("cdpath"), NULL, OPT_STR, 0},
65 /* O_CEDIT 4.4BSD */
66 {L("cedit"), NULL, OPT_STR, 0},
67 /* O_COLUMNS 4.4BSD */
68 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE},
69 /* O_COMBINED */
70 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC},
71 /* O_COMMENT 4.4BSD */
72 {L("comment"), NULL, OPT_0BOOL, 0},
73 /* O_TMPDIR 4BSD */
74 {L("directory"), NULL, OPT_STR, 0},
75 /* O_EDCOMPATIBLE 4BSD */
76 {L("edcompatible"),NULL, OPT_0BOOL, 0},
77 /* O_ERRORBELLS 4BSD */
78 {L("errorbells"), NULL, OPT_0BOOL, 0},
79 /* O_ESCAPETIME 4.4BSD */
80 {L("escapetime"), NULL, OPT_NUM, 0},
81 /* O_EXPANDTAB NetBSD 5.0 */
82 {L("expandtab"), NULL, OPT_0BOOL, 0},
83 /* O_EXRC System V (undocumented) */
84 {L("exrc"), NULL, OPT_0BOOL, 0},
85 /* O_EXTENDED 4.4BSD */
86 {L("extended"), f_recompile, OPT_0BOOL, 0},
87 /* O_FILEC 4.4BSD */
88 {L("filec"), NULL, OPT_STR, 0},
89 /* O_FILEENCODING */
90 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC},
91 /* O_FLASH HPUX */
92 {L("flash"), NULL, OPT_1BOOL, 0},
93 /* O_HARDTABS 4BSD */
94 {L("hardtabs"), NULL, OPT_NUM, 0},
95 /* O_ICLOWER 4.4BSD */
96 {L("iclower"), f_recompile, OPT_0BOOL, 0},
97 /* O_IGNORECASE 4BSD */
98 {L("ignorecase"), f_recompile, OPT_0BOOL, 0},
99 /* O_INPUTENCODING */
100 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC},
101 /* O_KEYTIME 4.4BSD */
102 {L("keytime"), NULL, OPT_NUM, 0},
103 /* O_LEFTRIGHT 4.4BSD */
104 {L("leftright"), f_reformat, OPT_0BOOL, 0},
105 /* O_LINES 4.4BSD */
106 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE},
107 /* O_LISP 4BSD
108 * XXX
109 * When the lisp option is implemented, delete the OPT_NOSAVE flag,
110 * so that :mkexrc dumps it.
111 */
112 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE},
113 /* O_LIST 4BSD */
114 {L("list"), f_reformat, OPT_0BOOL, 0},
115 /* O_LOCKFILES 4.4BSD
116 * XXX
117 * Locking isn't reliable enough over NFS to require it, in addition,
118 * it's a serious startup performance problem over some remote links.
119 */
120 {L("lock"), NULL, OPT_1BOOL, 0},
121 /* O_MAGIC 4BSD */
122 {L("magic"), NULL, OPT_1BOOL, 0},
123 /* O_MATCHCHARS NetBSD 2.0 */
124 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS},
125 /* O_MATCHTIME 4.4BSD */
126 {L("matchtime"), NULL, OPT_NUM, 0},
127 /* O_MESG 4BSD */
128 {L("mesg"), NULL, OPT_1BOOL, 0},
129 /* O_MODELINE 4BSD
130 * !!!
131 * This has been documented in historical systems as both "modeline"
132 * and as "modelines". Regardless of the name, this option represents
133 * a security problem of mammoth proportions, not to mention a stunning
134 * example of what your intro CS professor referred to as the perils of
135 * mixing code and data. Don't add it, or I will kill you.
136 */
137 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET},
138 /* O_MSGCAT 4.4BSD */
139 {L("msgcat"), f_msgcat, OPT_STR, 0},
140 /* O_NOPRINT 4.4BSD */
141 {L("noprint"), f_print, OPT_STR, 0},
142 /* O_NUMBER 4BSD */
143 {L("number"), f_reformat, OPT_0BOOL, 0},
144 /* O_OCTAL 4.4BSD */
145 {L("octal"), f_print, OPT_0BOOL, 0},
146 /* O_OPEN 4BSD */
147 {L("open"), NULL, OPT_1BOOL, 0},
148 /* O_OPTIMIZE 4BSD */
149 {L("optimize"), NULL, OPT_1BOOL, 0},
150 /* O_PARAGRAPHS 4BSD */
151 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS},
152 /* O_PATH 4.4BSD */
153 {L("path"), NULL, OPT_STR, 0},
154 /* O_PRINT 4.4BSD */
155 {L("print"), f_print, OPT_STR, 0},
156 /* O_PROMPT 4BSD */
157 {L("prompt"), NULL, OPT_1BOOL, 0},
158 /* O_READONLY 4BSD (undocumented) */
159 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS},
160 /* O_RECDIR 4.4BSD */
161 {L("recdir"), NULL, OPT_STR, 0},
162 /* O_REDRAW 4BSD */
163 {L("redraw"), NULL, OPT_0BOOL, 0},
164 /* O_REMAP 4BSD */
165 {L("remap"), NULL, OPT_1BOOL, 0},
166 /* O_REPORT 4BSD */
167 {L("report"), NULL, OPT_NUM, 0},
168 /* O_RULER 4.4BSD */
169 {L("ruler"), NULL, OPT_0BOOL, 0},
170 /* O_SCROLL 4BSD */
171 {L("scroll"), NULL, OPT_NUM, 0},
172 /* O_SEARCHINCR 4.4BSD */
173 {L("searchincr"), NULL, OPT_0BOOL, 0},
174 /* O_SECTIONS 4BSD */
175 {L("sections"), NULL, OPT_STR, OPT_PAIRS},
176 /* O_SECURE 4.4BSD */
177 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET},
178 /* O_SHELL 4BSD */
179 {L("shell"), NULL, OPT_STR, 0},
180 /* O_SHELLMETA 4.4BSD */
181 {L("shellmeta"), NULL, OPT_STR, 0},
182 /* O_SHIFTWIDTH 4BSD */
183 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO},
184 /* O_SHOWMATCH 4BSD */
185 {L("showmatch"), NULL, OPT_0BOOL, 0},
186 /* O_SHOWMODE 4.4BSD */
187 {L("showmode"), NULL, OPT_0BOOL, 0},
188 /* O_SIDESCROLL 4.4BSD */
189 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO},
190 /* O_SLOWOPEN 4BSD */
191 {L("slowopen"), NULL, OPT_0BOOL, 0},
192 /* O_SOURCEANY 4BSD (undocumented)
193 * !!!
194 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
195 * were owned by the user. The sourceany option was an undocumented
196 * feature of historic vi which permitted the startup source'ing of
197 * .exrc files the user didn't own. This is an obvious security problem,
198 * and we ignore the option.
199 */
200 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET},
201 /* O_TABSTOP 4BSD */
202 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO},
203 /* O_TAGLENGTH 4BSD */
204 {L("taglength"), NULL, OPT_NUM, 0},
205 /* O_TAGS 4BSD */
206 {L("tags"), NULL, OPT_STR, 0},
207 /* O_TERM 4BSD
208 * !!!
209 * By default, the historic vi always displayed information about two
210 * options, redraw and term. Term seems sufficient.
211 */
212 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE},
213 /* O_TERSE 4BSD */
214 {L("terse"), NULL, OPT_0BOOL, 0},
215 /* O_TILDEOP 4.4BSD */
216 {L("tildeop"), NULL, OPT_0BOOL, 0},
217 /* O_TIMEOUT 4BSD (undocumented) */
218 {L("timeout"), NULL, OPT_1BOOL, 0},
219 /* O_TTYWERASE 4.4BSD */
220 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0},
221 /* O_VERBOSE 4.4BSD */
222 {L("verbose"), NULL, OPT_0BOOL, 0},
223 /* O_W1200 4BSD */
224 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
225 /* O_W300 4BSD */
226 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
227 /* O_W9600 4BSD */
228 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
229 /* O_WARN 4BSD */
230 {L("warn"), NULL, OPT_1BOOL, 0},
231 /* O_WINDOW 4BSD */
232 {L("window"), f_window, OPT_NUM, 0},
233 /* O_WINDOWNAME 4BSD */
234 {L("windowname"), NULL, OPT_0BOOL, 0},
235 /* O_WRAPLEN 4.4BSD */
236 {L("wraplen"), NULL, OPT_NUM, 0},
237 /* O_WRAPMARGIN 4BSD */
238 {L("wrapmargin"), NULL, OPT_NUM, 0},
239 /* O_WRAPSCAN 4BSD */
240 {L("wrapscan"), NULL, OPT_1BOOL, 0},
241 /* O_WRITEANY 4BSD */
242 {L("writeany"), NULL, OPT_0BOOL, 0},
243 {NULL},
244 };
245
246 typedef struct abbrev {
247 CHAR_T *name;
248 int offset;
249 } OABBREV;
250
251 static OABBREV const abbrev[] = {
252 {L("ai"), O_AUTOINDENT}, /* 4BSD */
253 {L("ap"), O_AUTOPRINT}, /* 4BSD */
254 {L("aw"), O_AUTOWRITE}, /* 4BSD */
255 {L("bf"), O_BEAUTIFY}, /* 4BSD */
256 {L("co"), O_COLUMNS}, /* 4.4BSD */
257 {L("dir"), O_TMPDIR}, /* 4BSD */
258 {L("eb"), O_ERRORBELLS}, /* 4BSD */
259 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */
260 {L("et"), O_EXPANDTAB}, /* NetBSD 5.0 */
261 {L("ex"), O_EXRC}, /* System V (undocumented) */
262 {L("fe"), O_FILEENCODING},
263 {L("ht"), O_HARDTABS}, /* 4BSD */
264 {L("ic"), O_IGNORECASE}, /* 4BSD */
265 {L("ie"), O_INPUTENCODING},
266 {L("li"), O_LINES}, /* 4.4BSD */
267 {L("modelines"), O_MODELINE}, /* HPUX */
268 {L("nu"), O_NUMBER}, /* 4BSD */
269 {L("opt"), O_OPTIMIZE}, /* 4BSD */
270 {L("para"), O_PARAGRAPHS}, /* 4BSD */
271 {L("re"), O_REDRAW}, /* O'Reilly */
272 {L("ro"), O_READONLY}, /* 4BSD (undocumented) */
273 {L("scr"), O_SCROLL}, /* 4BSD (undocumented) */
274 {L("sect"), O_SECTIONS}, /* O'Reilly */
275 {L("sh"), O_SHELL}, /* 4BSD */
276 {L("slow"), O_SLOWOPEN}, /* 4BSD */
277 {L("sm"), O_SHOWMATCH}, /* 4BSD */
278 {L("smd"), O_SHOWMODE}, /* 4BSD */
279 {L("sw"), O_SHIFTWIDTH}, /* 4BSD */
280 {L("tag"), O_TAGS}, /* 4BSD (undocumented) */
281 {L("tl"), O_TAGLENGTH}, /* 4BSD */
282 {L("to"), O_TIMEOUT}, /* 4BSD (undocumented) */
283 {L("ts"), O_TABSTOP}, /* 4BSD */
284 {L("tty"), O_TERM}, /* 4BSD (undocumented) */
285 {L("ttytype"), O_TERM}, /* 4BSD (undocumented) */
286 {L("w"), O_WINDOW}, /* O'Reilly */
287 {L("wa"), O_WRITEANY}, /* 4BSD */
288 {L("wi"), O_WINDOW}, /* 4BSD (undocumented) */
289 {L("wl"), O_WRAPLEN}, /* 4.4BSD */
290 {L("wm"), O_WRAPMARGIN}, /* 4BSD */
291 {L("ws"), O_WRAPSCAN}, /* 4BSD */
292 {NULL},
293 };
294
295 /*
296 * opts_init --
297 * Initialize some of the options.
298 *
299 * PUBLIC: int opts_init(SCR *, int *);
300 */
301 int
opts_init(SCR * sp,int * oargs)302 opts_init(SCR *sp, int *oargs)
303 {
304 ARGS *argv[2], a, b;
305 OPTLIST const *op;
306 u_long v;
307 int cnt, optindx = 0;
308 char *s;
309 CHAR_T b2[1024];
310
311 a.bp = b2;
312 b.bp = NULL;
313 a.len = b.len = 0;
314 argv[0] = &a;
315 argv[1] = &b;
316
317 /* Set numeric and string default values. */
318 #define OI(indx, str) do { \
319 a.len = STRLEN(str); \
320 if ((CHAR_T*)str != b2) /* GCC puts strings in text-space. */ \
321 (void)MEMCPY(b2, str, a.len+1); \
322 if (opts_set(sp, argv, NULL)) { \
323 optindx = indx; \
324 goto err; \
325 } \
326 } while (0)
327 /*
328 * Indirect global options to global space. Specifically, set up
329 * terminal, lines, columns first, they're used by other options.
330 * Note, don't set the flags until we've set up the indirection.
331 */
332 if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
333 goto err;
334 F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
335 if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
336 goto err;
337 F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
338 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
339 goto err;
340 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
341 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
342 goto err;
343 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
344
345 /* Initialize string values. */
346 (void)SPRINTF(b2, SIZE(b2),
347 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
348 OI(O_CDPATH, b2);
349 OI(O_CEDIT, L("cedit=\033"));
350
351 /*
352 * !!!
353 * Vi historically stored temporary files in /var/tmp. We store them
354 * in /tmp by default, hoping it's a memory based file system. There
355 * are two ways to change this -- the user can set either the directory
356 * option or the TMPDIR environmental variable.
357 */
358 (void)SPRINTF(b2, SIZE(b2),
359 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
360 OI(O_TMPDIR, b2);
361 OI(O_ESCAPETIME, L("escapetime=6"));
362 OI(O_FILEC, L("filec=\t"));
363 OI(O_KEYTIME, L("keytime=6"));
364 OI(O_MATCHCHARS, L("matchchars=()[]{}"));
365 OI(O_MATCHTIME, L("matchtime=7"));
366 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
367 OI(O_MSGCAT, b2);
368 OI(O_REPORT, L("report=5"));
369 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
370 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
371 OI(O_PATH, b2);
372 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), NVI_PATH_PRESERVE);
373 OI(O_RECDIR, b2);
374 OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
375 (void)SPRINTF(b2, SIZE(b2),
376 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
377 OI(O_SHELL, b2);
378 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
379 OI(O_SHIFTWIDTH, L("shiftwidth=8"));
380 OI(O_SIDESCROLL, L("sidescroll=16"));
381 OI(O_TABSTOP, L("tabstop=8"));
382 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
383 OI(O_TAGS, b2);
384
385 /*
386 * XXX
387 * Initialize O_SCROLL here, after term; initializing term should
388 * have created a LINES/COLUMNS value.
389 */
390 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
391 v = 1;
392 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
393 OI(O_SCROLL, b2);
394
395 /*
396 * The default window option values are:
397 * 8 if baud rate <= 600
398 * 16 if baud rate <= 1200
399 * LINES - 1 if baud rate > 1200
400 *
401 * Note, the windows option code will correct any too-large value
402 * or when the O_LINES value is 1.
403 */
404 if (sp->gp->scr_baud(sp, &v))
405 return (1);
406 if (v <= 600)
407 v = 8;
408 else if (v <= 1200)
409 v = 16;
410 else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
411 v = 1;
412
413 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
414 OI(O_WINDOW, b2);
415
416 /*
417 * Set boolean default values, and copy all settings into the default
418 * information. OS_NOFREE is set, we're copying, not replacing.
419 */
420 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
421 if (F_ISSET(op, OPT_GLOBAL))
422 continue;
423 switch (op->type) {
424 case OPT_0BOOL:
425 break;
426 case OPT_1BOOL:
427 O_SET(sp, cnt);
428 O_D_SET(sp, cnt);
429 break;
430 case OPT_NUM:
431 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
432 break;
433 case OPT_STR:
434 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
435 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
436 goto err;
437 break;
438 default:
439 abort();
440 }
441 }
442
443 /*
444 * !!!
445 * Some options can be initialized by the command name or the
446 * command-line arguments. They don't set the default values,
447 * it's historic practice.
448 */
449 for (; *oargs != -1; ++oargs)
450 OI(*oargs, optlist[*oargs].name);
451 #undef OI
452 return (0);
453
454 err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
455 "031|Unable to set default %s option");
456 return (1);
457 }
458
459 /*
460 * opts_set --
461 * Change the values of one or more options.
462 *
463 * PUBLIC: int opts_set(SCR *, ARGS *[], char *);
464 */
465 int
opts_set(SCR * sp,ARGS * argv[],char * usage)466 opts_set(SCR *sp, ARGS *argv[], char *usage)
467 {
468 enum optdisp disp;
469 enum nresult nret;
470 OPTLIST const *op;
471 OPTION *spo;
472 u_long isset, turnoff, value;
473 int ch, equals, nf, nf2, offset, qmark, rval;
474 CHAR_T *endp, *name, *p, *sep;
475 char *p2, *t2;
476 char *np;
477 size_t nlen;
478
479 disp = NO_DISPLAY;
480 for (rval = 0; argv[0]->len != 0; ++argv) {
481 /*
482 * The historic vi dumped the options for each occurrence of
483 * "all" in the set list. Puhleeze.
484 */
485 if (!STRCMP(argv[0]->bp, L("all"))) {
486 disp = ALL_DISPLAY;
487 continue;
488 }
489
490 /* Find equals sign or question mark. */
491 for (sep = NULL, equals = qmark = 0,
492 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
493 if (ch == '=' || ch == '?') {
494 if (p == name) {
495 if (usage != NULL)
496 msgq(sp, M_ERR,
497 "032|Usage: %s", usage);
498 return (1);
499 }
500 sep = p;
501 if (ch == '=')
502 equals = 1;
503 else
504 qmark = 1;
505 break;
506 }
507
508 turnoff = 0;
509 op = NULL;
510 if (sep != NULL)
511 *sep++ = '\0';
512
513 /* Search for the name, then name without any leading "no". */
514 if ((op = opts_search(name)) == NULL &&
515 name[0] == 'n' && name[1] == 'o') {
516 turnoff = 1;
517 name += 2;
518 op = opts_search(name);
519 }
520 if (op == NULL) {
521 opts_nomatch(sp, name);
522 rval = 1;
523 continue;
524 }
525
526 /* Find current option values. */
527 offset = op - optlist;
528 spo = sp->opts + offset;
529
530 /*
531 * !!!
532 * Historically, the question mark could be a separate
533 * argument.
534 */
535 if (!equals && !qmark &&
536 argv[1]->len == 1 && argv[1]->bp[0] == '?') {
537 ++argv;
538 qmark = 1;
539 }
540
541 /* Set name, value. */
542 switch (op->type) {
543 case OPT_0BOOL:
544 case OPT_1BOOL:
545 /* Some options may not be reset. */
546 if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
547 msgq_wstr(sp, M_ERR, name,
548 "291|set: the %s option may not be turned off");
549 rval = 1;
550 break;
551 }
552
553 /* Some options may not be set. */
554 if (F_ISSET(op, OPT_NOSET) && !turnoff) {
555 msgq_wstr(sp, M_ERR, name,
556 "313|set: the %s option may never be turned on");
557 rval = 1;
558 break;
559 }
560
561 if (equals) {
562 msgq_wstr(sp, M_ERR, name,
563 "034|set: [no]%s option doesn't take a value");
564 rval = 1;
565 break;
566 }
567 if (qmark) {
568 if (!disp)
569 disp = SELECT_DISPLAY;
570 F_SET(spo, OPT_SELECTED);
571 break;
572 }
573
574 /*
575 * Do nothing if the value is unchanged, the underlying
576 * functions can be expensive.
577 */
578 isset = !turnoff;
579 if (!F_ISSET(op, OPT_ALWAYS)) {
580 if (isset) {
581 if (O_ISSET(sp, offset))
582 break;
583 } else
584 if (!O_ISSET(sp, offset))
585 break;
586 }
587
588 /* Report to subsystems. */
589 if ((op->func != NULL &&
590 op->func(sp, spo, NULL, &isset)) ||
591 ex_optchange(sp, offset, NULL, &isset) ||
592 v_optchange(sp, offset, NULL, &isset) ||
593 sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
594 rval = 1;
595 break;
596 }
597
598 /* Set the value. */
599 if (isset)
600 O_SET(sp, offset);
601 else
602 O_CLR(sp, offset);
603 break;
604 case OPT_NUM:
605 if (turnoff) {
606 msgq_wstr(sp, M_ERR, name,
607 "035|set: %s option isn't a boolean");
608 rval = 1;
609 break;
610 }
611 if (qmark || !equals) {
612 if (!disp)
613 disp = SELECT_DISPLAY;
614 F_SET(spo, OPT_SELECTED);
615 break;
616 }
617
618 if (!ISDIGIT(sep[0]))
619 goto badnum;
620 if ((nret =
621 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
622 INT2CHAR(sp, name, STRLEN(name) + 1,
623 np, nlen);
624 p2 = msg_print(sp, np, &nf);
625 INT2CHAR(sp, sep, STRLEN(sep) + 1,
626 np, nlen);
627 t2 = msg_print(sp, np, &nf2);
628 switch (nret) {
629 case NUM_ERR:
630 msgq(sp, M_SYSERR,
631 "036|set: %s option: %s", p2, t2);
632 break;
633 case NUM_OVER:
634 msgq(sp, M_ERR,
635 "037|set: %s option: %s: value overflow", p2, t2);
636 break;
637 case NUM_OK:
638 case NUM_UNDER:
639 abort();
640 }
641 if (nf)
642 FREE_SPACE(sp, p2, 0);
643 if (nf2)
644 FREE_SPACE(sp, t2, 0);
645 rval = 1;
646 break;
647 }
648 if (*endp && !cmdskip(*endp)) {
649 badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
650 np, nlen);
651 p2 = msg_print(sp, np, &nf);
652 INT2CHAR(sp, sep, STRLEN(sep) + 1,
653 np, nlen);
654 t2 = msg_print(sp, np, &nf2);
655 msgq(sp, M_ERR,
656 "038|set: %s option: %s is an illegal number", p2, t2);
657 if (nf)
658 FREE_SPACE(sp, p2, 0);
659 if (nf2)
660 FREE_SPACE(sp, t2, 0);
661 rval = 1;
662 break;
663 }
664
665 /* Some options may never be set to zero. */
666 if (F_ISSET(op, OPT_NOZERO) && value == 0) {
667 msgq_wstr(sp, M_ERR, name,
668 "314|set: the %s option may never be set to 0");
669 rval = 1;
670 break;
671 }
672
673 /*
674 * Do nothing if the value is unchanged, the underlying
675 * functions can be expensive.
676 */
677 if (!F_ISSET(op, OPT_ALWAYS) &&
678 O_VAL(sp, offset) == value)
679 break;
680
681 /* Report to subsystems. */
682 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
683 if ((op->func != NULL &&
684 op->func(sp, spo, np, &value)) ||
685 ex_optchange(sp, offset, np, &value) ||
686 v_optchange(sp, offset, np, &value) ||
687 sp->gp->scr_optchange(sp, offset, np, &value)) {
688 rval = 1;
689 break;
690 }
691
692 /* Set the value. */
693 if (o_set(sp, offset, 0, NULL, value))
694 rval = 1;
695 break;
696 case OPT_STR:
697 if (turnoff) {
698 msgq_wstr(sp, M_ERR, name,
699 "039|set: %s option isn't a boolean");
700 rval = 1;
701 break;
702 }
703 if (qmark || !equals) {
704 if (!disp)
705 disp = SELECT_DISPLAY;
706 F_SET(spo, OPT_SELECTED);
707 break;
708 }
709
710 /* Check for strings that must have even length. */
711 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
712 msgq_wstr(sp, M_ERR, name,
713 "047|The %s option must be in two character groups");
714 rval = 1;
715 break;
716 }
717
718 /*
719 * Do nothing if the value is unchanged, the underlying
720 * functions can be expensive.
721 */
722 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
723 if (!F_ISSET(op, OPT_ALWAYS) &&
724 O_STR(sp, offset) != NULL &&
725 !strcmp(O_STR(sp, offset), np))
726 break;
727
728 /* Report to subsystems. */
729 if ((op->func != NULL &&
730 op->func(sp, spo, np, NULL)) ||
731 ex_optchange(sp, offset, np, NULL) ||
732 v_optchange(sp, offset, np, NULL) ||
733 sp->gp->scr_optchange(sp, offset, np, NULL)) {
734 rval = 1;
735 break;
736 }
737
738 /* Set the value. */
739 if (o_set(sp, offset, OS_STRDUP, np, 0))
740 rval = 1;
741 break;
742 default:
743 abort();
744 }
745 }
746 if (disp != NO_DISPLAY)
747 opts_dump(sp, disp);
748 return (rval);
749 }
750
751 /*
752 * o_set --
753 * Set an option's value.
754 *
755 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long);
756 */
757 int
o_set(SCR * sp,int opt,u_int flags,char * str,u_long val)758 o_set(SCR *sp, int opt, u_int flags, char *str, u_long val)
759 {
760 OPTION *op;
761
762 /* Set a pointer to the options area. */
763 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
764 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
765
766 /* Copy the string, if requested. */
767 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
768 msgq(sp, M_SYSERR, NULL);
769 return (1);
770 }
771
772 /* Free the previous string, if requested, and set the value. */
773 if LF_ISSET(OS_DEF)
774 if (LF_ISSET(OS_STR | OS_STRDUP)) {
775 if (!LF_ISSET(OS_NOFREE))
776 free(op->o_def.str);
777 op->o_def.str = str;
778 } else
779 op->o_def.val = val;
780 else
781 if (LF_ISSET(OS_STR | OS_STRDUP)) {
782 if (!LF_ISSET(OS_NOFREE))
783 free(op->o_cur.str);
784 op->o_cur.str = str;
785 } else
786 op->o_cur.val = val;
787 return (0);
788 }
789
790 /*
791 * opts_empty --
792 * Return 1 if the string option is invalid, 0 if it's OK.
793 *
794 * PUBLIC: int opts_empty(SCR *, int, int);
795 */
796 int
opts_empty(SCR * sp,int off,int silent)797 opts_empty(SCR *sp, int off, int silent)
798 {
799 char *p;
800
801 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
802 if (!silent)
803 msgq_wstr(sp, M_ERR, optlist[off].name,
804 "305|No %s edit option specified");
805 return (1);
806 }
807 return (0);
808 }
809
810 /*
811 * opts_dump --
812 * List the current values of selected options.
813 *
814 * PUBLIC: void opts_dump(SCR *, enum optdisp);
815 */
816 void
opts_dump(SCR * sp,enum optdisp type)817 opts_dump(SCR *sp, enum optdisp type)
818 {
819 OPTLIST const *op;
820 int base, b_num, cnt, col, colwidth, curlen, s_num;
821 int numcols, numrows, row;
822 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
823 char nbuf[20];
824
825 /*
826 * Options are output in two groups -- those that fit in a column and
827 * those that don't. Output is done on 6 character "tab" boundaries
828 * for no particular reason. (Since we don't output tab characters,
829 * we can ignore the terminal's tab settings.) Ignore the user's tab
830 * setting because we have no idea how reasonable it is.
831 *
832 * Find a column width we can live with, testing from 10 columns to 1.
833 */
834 for (numcols = 10; numcols > 1; --numcols) {
835 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
836 if (colwidth >= 10) {
837 colwidth =
838 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
839 numcols = sp->cols / colwidth;
840 break;
841 }
842 colwidth = 0;
843 }
844
845 /*
846 * Get the set of options to list, entering them into
847 * the column list or the overflow list.
848 */
849 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
850 cnt = op - optlist;
851
852 /* If OPT_NDISP set, it's never displayed. */
853 if (F_ISSET(op, OPT_NDISP))
854 continue;
855
856 switch (type) {
857 case ALL_DISPLAY: /* Display all. */
858 break;
859 case CHANGED_DISPLAY: /* Display changed. */
860 /* If OPT_ADISP set, it's always "changed". */
861 if (F_ISSET(op, OPT_ADISP))
862 break;
863 switch (op->type) {
864 case OPT_0BOOL:
865 case OPT_1BOOL:
866 case OPT_NUM:
867 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
868 continue;
869 break;
870 case OPT_STR:
871 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
872 (O_D_STR(sp, cnt) != NULL &&
873 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
874 continue;
875 break;
876 }
877 break;
878 case SELECT_DISPLAY: /* Display selected. */
879 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
880 continue;
881 break;
882 default:
883 case NO_DISPLAY:
884 abort();
885 }
886 F_CLR(&sp->opts[cnt], OPT_SELECTED);
887
888 curlen = STRLEN(op->name);
889 switch (op->type) {
890 case OPT_0BOOL:
891 case OPT_1BOOL:
892 if (!O_ISSET(sp, cnt))
893 curlen += 2;
894 break;
895 case OPT_NUM:
896 (void)snprintf(nbuf,
897 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
898 curlen += strlen(nbuf);
899 break;
900 case OPT_STR:
901 if (O_STR(sp, cnt) != NULL)
902 curlen += strlen(O_STR(sp, cnt));
903 curlen += 3;
904 break;
905 }
906 /* Offset by 2 so there's a gap. */
907 if (curlen <= colwidth - 2)
908 s_op[s_num++] = cnt;
909 else
910 b_op[b_num++] = cnt;
911 }
912
913 if (s_num > 0) {
914 /* Figure out the number of rows. */
915 if (s_num > numcols) {
916 numrows = s_num / numcols;
917 if (s_num % numcols)
918 ++numrows;
919 } else
920 numrows = 1;
921
922 /* Display the options in sorted order. */
923 for (row = 0; row < numrows;) {
924 for (base = row, col = 0; col < numcols; ++col) {
925 cnt = opts_print(sp, &optlist[s_op[base]]);
926 if ((base += numrows) >= s_num)
927 break;
928 (void)ex_printf(sp, "%*s",
929 (int)(colwidth - cnt), "");
930 }
931 if (++row < numrows || b_num)
932 (void)ex_puts(sp, "\n");
933 }
934 }
935
936 for (row = 0; row < b_num;) {
937 (void)opts_print(sp, &optlist[b_op[row]]);
938 if (++row < b_num)
939 (void)ex_puts(sp, "\n");
940 }
941 (void)ex_puts(sp, "\n");
942 }
943
944 /*
945 * opts_print --
946 * Print out an option.
947 */
948 static int
opts_print(SCR * sp,OPTLIST const * op)949 opts_print(SCR *sp, OPTLIST const *op)
950 {
951 int curlen, offset;
952 const char *p;
953
954 curlen = 0;
955 offset = op - optlist;
956 switch (op->type) {
957 case OPT_0BOOL:
958 case OPT_1BOOL:
959 curlen += ex_printf(sp,
960 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
961 break;
962 case OPT_NUM:
963 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
964 break;
965 case OPT_STR:
966 curlen += ex_printf(sp, WS"=\"", op->name);
967 p = O_STR(sp, offset);
968 /* Keep correct count for unprintable character sequences */
969 if (p != NULL)
970 for (; *p != '\0'; ++p)
971 curlen += ex_puts(sp, unctrl(*p));
972 curlen += ex_puts(sp, "\"");
973 break;
974 }
975 return (curlen);
976 }
977
978 /*
979 * opts_save --
980 * Write the current configuration to a file.
981 *
982 * PUBLIC: int opts_save(SCR *, FILE *);
983 */
984 int
opts_save(SCR * sp,FILE * fp)985 opts_save(SCR *sp, FILE *fp)
986 {
987 OPTLIST const *op;
988 CHAR_T ch, *p;
989 char nch, *np;
990 int cnt;
991
992 for (op = optlist; op->name != NULL; ++op) {
993 if (F_ISSET(op, OPT_NOSAVE))
994 continue;
995 cnt = op - optlist;
996 switch (op->type) {
997 case OPT_0BOOL:
998 case OPT_1BOOL:
999 if (O_ISSET(sp, cnt))
1000 (void)fprintf(fp, "set "WS"\n", op->name);
1001 else
1002 (void)fprintf(fp, "set no"WS"\n", op->name);
1003 break;
1004 case OPT_NUM:
1005 (void)fprintf(fp,
1006 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1007 break;
1008 case OPT_STR:
1009 if (O_STR(sp, cnt) == NULL)
1010 break;
1011 (void)fprintf(fp, "set ");
1012 for (p = op->name; (ch = *p) != '\0'; ++p) {
1013 if (cmdskip(ch) || ch == '\\')
1014 (void)putc('\\', fp);
1015 fprintf(fp, WC, ch);
1016 }
1017 (void)putc('=', fp);
1018 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1019 if (cmdskip(nch) || nch == '\\')
1020 (void)putc('\\', fp);
1021 (void)putc(nch, fp);
1022 }
1023 (void)putc('\n', fp);
1024 break;
1025 }
1026 if (ferror(fp)) {
1027 msgq(sp, M_SYSERR, NULL);
1028 return (1);
1029 }
1030 }
1031 return (0);
1032 }
1033
1034 /*
1035 * opts_search --
1036 * Search for an option.
1037 *
1038 * PUBLIC: OPTLIST const *opts_search(CHAR_T *);
1039 */
1040 OPTLIST const *
opts_search(CHAR_T * name)1041 opts_search(CHAR_T *name)
1042 {
1043 OPTLIST const *op, *found;
1044 OABBREV atmp, *ap;
1045 OPTLIST otmp;
1046 size_t len;
1047
1048 /* Check list of abbreviations. */
1049 atmp.name = name;
1050 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1051 sizeof(OABBREV), opts_abbcmp)) != NULL)
1052 return (optlist + ap->offset);
1053
1054 /* Check list of options. */
1055 otmp.name = name;
1056 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1057 sizeof(OPTLIST), opts_cmp)) != NULL)
1058 return (op);
1059
1060 /*
1061 * Check to see if the name is the prefix of one (and only one)
1062 * option. If so, return the option.
1063 */
1064 len = STRLEN(name);
1065 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1066 if (op->name[0] < name[0])
1067 continue;
1068 if (op->name[0] > name[0])
1069 break;
1070 if (!MEMCMP(op->name, name, len)) {
1071 if (found != NULL)
1072 return (NULL);
1073 found = op;
1074 }
1075 }
1076 return (found);
1077 }
1078
1079 /*
1080 * opts_nomatch --
1081 * Standard nomatch error message for options.
1082 *
1083 * PUBLIC: void opts_nomatch(SCR *, CHAR_T *);
1084 */
1085 void
opts_nomatch(SCR * sp,CHAR_T * name)1086 opts_nomatch(SCR *sp, CHAR_T *name)
1087 {
1088 msgq_wstr(sp, M_ERR, name,
1089 "033|set: no %s option: 'set all' gives all option values");
1090 }
1091
1092 static int
opts_abbcmp(const void * a,const void * b)1093 opts_abbcmp(const void *a, const void *b)
1094 {
1095 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1096 }
1097
1098 static int
opts_cmp(const void * a,const void * b)1099 opts_cmp(const void *a, const void *b)
1100 {
1101 return(STRCMP(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1102 }
1103
1104 /*
1105 * opts_copy --
1106 * Copy a screen's OPTION array.
1107 *
1108 * PUBLIC: int opts_copy(SCR *, SCR *);
1109 */
1110 int
opts_copy(SCR * orig,SCR * sp)1111 opts_copy(SCR *orig, SCR *sp)
1112 {
1113 int cnt, rval;
1114
1115 /* Copy most everything without change. */
1116 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1117
1118 /* Copy the string edit options. */
1119 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1120 if (optlist[cnt].type != OPT_STR ||
1121 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1122 continue;
1123 /*
1124 * If never set, or already failed, NULL out the entries --
1125 * have to continue after failure, otherwise would have two
1126 * screens referencing the same memory.
1127 */
1128 if (rval || O_STR(sp, cnt) == NULL) {
1129 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1130 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1131 continue;
1132 }
1133
1134 /* Copy the current string. */
1135 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1136 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1137 goto nomem;
1138 }
1139
1140 /* Copy the default string. */
1141 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1142 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1143 nomem: msgq(orig, M_SYSERR, NULL);
1144 rval = 1;
1145 }
1146 }
1147 return (rval);
1148 }
1149
1150 /*
1151 * opts_free --
1152 * Free all option strings
1153 *
1154 * PUBLIC: void opts_free(SCR *);
1155 */
1156 void
opts_free(SCR * sp)1157 opts_free(SCR *sp)
1158 {
1159 int cnt;
1160
1161 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1162 if (optlist[cnt].type != OPT_STR ||
1163 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1164 continue;
1165 free(O_STR(sp, cnt));
1166 free(O_D_STR(sp, cnt));
1167 }
1168 }
1169