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Expand PMF_FN_* macros.
[netbsd-mini2440.git] / dist / nvi / common / options.c
blob26a45dc6fbeea8230d3c4706972f7a63026f6341
1 /* $NetBSD: options.c,v 1.6 2009/08/07 16:19:53 lukem Exp $ */
2
3 /*-
4 * Copyright (c) 1991, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 1991, 1993, 1994, 1995, 1996
7 * Keith Bostic. All rights reserved.
8 *
9 * See the LICENSE file for redistribution information.
10 */
11
12 #include "config.h"
13
14 #ifndef lint
15 static const char sccsid[] = "Id: options.c,v 10.65 2002/01/18 22:34:43 skimo Exp (Berkeley) Date: 2002/01/18 22:34:43";
16 #endif /* not lint */
17
18 #include <sys/types.h>
19 #include <sys/queue.h>
20 #include <sys/stat.h>
21 #include <sys/time.h>
22
23 #include <bitstring.h>
24 #include <ctype.h>
25 #include <errno.h>
26 #include <limits.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <unistd.h>
31
32 #include "common.h"
33 #include "../vi/vi.h"
34 #include "pathnames.h"
35
36 static int opts_abbcmp __P((const void *, const void *));
37 static int opts_cmp __P((const void *, const void *));
38 static int opts_print __P((SCR *, OPTLIST const *));
39
40 #ifdef USE_WIDECHAR
41 #define OPT_WC 0
42 #else
43 #define OPT_WC (OPT_NOSAVE | OPT_NDISP)
44 #endif
45
46 /*
47 * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
48 * Fifth Edition, May 1992. There's no way of knowing what systems they are
49 * actually from.
50 *
51 * HPUX noted options and abbreviations are from "The Ultimate Guide to the
52 * VI and EX Text Editors", 1990.
53 *
54 * This list must be sorted...
55 */
56 OPTLIST const optlist[] = {
57 /* O_ALTWERASE 4.4BSD */
58 {L("altwerase"), f_altwerase, OPT_0BOOL, 0},
59 /* O_AUTOINDENT 4BSD */
60 {L("autoindent"), NULL, OPT_0BOOL, 0},
61 /* O_AUTOPRINT 4BSD */
62 {L("autoprint"), NULL, OPT_1BOOL, 0},
63 /* O_AUTOWRITE 4BSD */
64 {L("autowrite"), NULL, OPT_0BOOL, 0},
65 /* O_BACKUP 4.4BSD */
66 {L("backup"), NULL, OPT_STR, 0},
67 /* O_BEAUTIFY 4BSD */
68 {L("beautify"), NULL, OPT_0BOOL, 0},
69 /* O_CDPATH 4.4BSD */
70 {L("cdpath"), NULL, OPT_STR, 0},
71 /* O_CEDIT 4.4BSD */
72 {L("cedit"), NULL, OPT_STR, 0},
73 /* O_COLUMNS 4.4BSD */
74 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE},
75 /* O_COMBINED */
76 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC},
77 /* O_COMMENT 4.4BSD */
78 {L("comment"), NULL, OPT_0BOOL, 0},
79 /* O_TMP_DIRECTORY 4BSD */
80 {L("directory"), NULL, OPT_STR, 0},
81 /* O_EDCOMPATIBLE 4BSD */
82 {L("edcompatible"),NULL, OPT_0BOOL, 0},
83 /* O_ERRORBELLS 4BSD */
84 {L("errorbells"), NULL, OPT_0BOOL, 0},
85 /* O_ESCAPETIME 4.4BSD */
86 {L("escapetime"), NULL, OPT_NUM, 0},
87 /* O_EXPANDTAB NetBSD 5.0 */
88 {L("expandtab"), NULL, OPT_0BOOL, 0},
89 /* O_EXRC System V (undocumented) */
90 {L("exrc"), NULL, OPT_0BOOL, 0},
91 /* O_EXTENDED 4.4BSD */
92 {L("extended"), f_recompile, OPT_0BOOL, 0},
93 /* O_FILEC 4.4BSD */
94 {L("filec"), NULL, OPT_STR, 0},
95 /* O_FILEENCODING */
96 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC},
97 /* O_FLASH HPUX */
98 {L("flash"), NULL, OPT_1BOOL, 0},
99 #ifdef GTAGS
100 /* O_GTAGSMODE FreeBSD/NetBSD */
101 {L("gtagsmode"),NULL, OPT_1BOOL, 0},
102 #endif
103 /* O_HARDTABS 4BSD */
104 {L("hardtabs"), NULL, OPT_NUM, 0},
105 /* O_ICLOWER 4.4BSD */
106 {L("iclower"), f_recompile, OPT_0BOOL, 0},
107 /* O_IGNORECASE 4BSD */
108 {L("ignorecase"), f_recompile, OPT_0BOOL, 0},
109 /* O_INPUTENCODING */
110 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC},
111 /* O_KEYTIME 4.4BSD */
112 {L("keytime"), NULL, OPT_NUM, 0},
113 /* O_LEFTRIGHT 4.4BSD */
114 {L("leftright"), f_reformat, OPT_0BOOL, 0},
115 /* O_LINES 4.4BSD */
116 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE},
117 /* O_LISP 4BSD
118 * XXX
119 * When the lisp option is implemented, delete the OPT_NOSAVE flag,
120 * so that :mkexrc dumps it.
121 */
122 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE},
123 /* O_LIST 4BSD */
124 {L("list"), f_reformat, OPT_0BOOL, 0},
125 /* O_LOCKFILES 4.4BSD
126 * XXX
127 * Locking isn't reliable enough over NFS to require it, in addition,
128 * it's a serious startup performance problem over some remote links.
129 */
130 {L("lock"), NULL, OPT_1BOOL, 0},
131 /* O_MAGIC 4BSD */
132 {L("magic"), NULL, OPT_1BOOL, 0},
133 /* O_MATCHCHARS netbsd 2.0 */
134 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS},
135 /* O_MATCHTIME 4.4BSD */
136 {L("matchtime"), NULL, OPT_NUM, 0},
137 /* O_MESG 4BSD */
138 {L("mesg"), NULL, OPT_1BOOL, 0},
139 /* O_MODELINE 4BSD
140 * !!!
141 * This has been documented in historical systems as both "modeline"
142 * and as "modelines". Regardless of the name, this option represents
143 * a security problem of mammoth proportions, not to mention a stunning
144 * example of what your intro CS professor referred to as the perils of
145 * mixing code and data. Don't add it, or I will kill you.
146 */
147 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET},
148 /* O_MSGCAT 4.4BSD */
149 {L("msgcat"), f_msgcat, OPT_STR, 0},
150 /* O_NOPRINT 4.4BSD */
151 {L("noprint"), f_print, OPT_STR, 0},
152 /* O_NUMBER 4BSD */
153 {L("number"), f_reformat, OPT_0BOOL, 0},
154 /* O_OCTAL 4.4BSD */
155 {L("octal"), f_print, OPT_0BOOL, 0},
156 /* O_OPEN 4BSD */
157 {L("open"), NULL, OPT_1BOOL, 0},
158 /* O_OPTIMIZE 4BSD */
159 {L("optimize"), NULL, OPT_1BOOL, 0},
160 /* O_PARAGRAPHS 4BSD */
161 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS},
162 /* O_PATH 4.4BSD */
163 {L("path"), NULL, OPT_STR, 0},
164 /* O_PRINT 4.4BSD */
165 {L("print"), f_print, OPT_STR, 0},
166 /* O_PROMPT 4BSD */
167 {L("prompt"), NULL, OPT_1BOOL, 0},
168 /* O_READONLY 4BSD (undocumented) */
169 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS},
170 /* O_RECDIR 4.4BSD */
171 {L("recdir"), NULL, OPT_STR, 0},
172 /* O_REDRAW 4BSD */
173 {L("redraw"), NULL, OPT_0BOOL, 0},
174 /* O_REMAP 4BSD */
175 {L("remap"), NULL, OPT_1BOOL, 0},
176 /* O_REPORT 4BSD */
177 {L("report"), NULL, OPT_NUM, 0},
178 /* O_RULER 4.4BSD */
179 {L("ruler"), NULL, OPT_0BOOL, 0},
180 /* O_SCROLL 4BSD */
181 {L("scroll"), NULL, OPT_NUM, 0},
182 /* O_SEARCHINCR 4.4BSD */
183 {L("searchincr"), NULL, OPT_0BOOL, 0},
184 /* O_SECTIONS 4BSD */
185 {L("sections"), NULL, OPT_STR, OPT_PAIRS},
186 /* O_SECURE 4.4BSD */
187 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET},
188 /* O_SHELL 4BSD */
189 {L("shell"), NULL, OPT_STR, 0},
190 /* O_SHELLMETA 4.4BSD */
191 {L("shellmeta"), NULL, OPT_STR, 0},
192 /* O_SHIFTWIDTH 4BSD */
193 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO},
194 /* O_SHOWMATCH 4BSD */
195 {L("showmatch"), NULL, OPT_0BOOL, 0},
196 /* O_SHOWMODE 4.4BSD */
197 {L("showmode"), NULL, OPT_0BOOL, 0},
198 /* O_SIDESCROLL 4.4BSD */
199 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO},
200 /* O_SLOWOPEN 4BSD */
201 {L("slowopen"), NULL, OPT_0BOOL, 0},
202 /* O_SOURCEANY 4BSD (undocumented)
203 * !!!
204 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
205 * were owned by the user. The sourceany option was an undocumented
206 * feature of historic vi which permitted the startup source'ing of
207 * .exrc files the user didn't own. This is an obvious security problem,
208 * and we ignore the option.
209 */
210 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET},
211 /* O_TABSTOP 4BSD */
212 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO},
213 /* O_TAGLENGTH 4BSD */
214 {L("taglength"), NULL, OPT_NUM, 0},
215 /* O_TAGS 4BSD */
216 {L("tags"), NULL, OPT_STR, 0},
217 /* O_TERM 4BSD
218 * !!!
219 * By default, the historic vi always displayed information about two
220 * options, redraw and term. Term seems sufficient.
221 */
222 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE},
223 /* O_TERSE 4BSD */
224 {L("terse"), NULL, OPT_0BOOL, 0},
225 /* O_TILDEOP 4.4BSD */
226 {L("tildeop"), NULL, OPT_0BOOL, 0},
227 /* O_TIMEOUT 4BSD (undocumented) */
228 {L("timeout"), NULL, OPT_1BOOL, 0},
229 /* O_TTYWERASE 4.4BSD */
230 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0},
231 /* O_VERBOSE 4.4BSD */
232 {L("verbose"), NULL, OPT_0BOOL, 0},
233 /* O_W1200 4BSD */
234 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
235 /* O_W300 4BSD */
236 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
237 /* O_W9600 4BSD */
238 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
239 /* O_WARN 4BSD */
240 {L("warn"), NULL, OPT_1BOOL, 0},
241 /* O_WINDOW 4BSD */
242 {L("window"), f_window, OPT_NUM, 0},
243 /* O_WINDOWNAME 4BSD */
244 {L("windowname"), NULL, OPT_0BOOL, 0},
245 /* O_WRAPLEN 4.4BSD */
246 {L("wraplen"), NULL, OPT_NUM, 0},
247 /* O_WRAPMARGIN 4BSD */
248 {L("wrapmargin"), NULL, OPT_NUM, 0},
249 /* O_WRAPSCAN 4BSD */
250 {L("wrapscan"), NULL, OPT_1BOOL, 0},
251 /* O_WRITEANY 4BSD */
252 {L("writeany"), NULL, OPT_0BOOL, 0},
253 {NULL, NULL, OPT_NUM, 0},
254 };
255
256 typedef struct abbrev {
257 const CHAR_T *name;
258 int offset;
259 } OABBREV;
260
261 static OABBREV const abbrev[] = {
262 {L("ai"), O_AUTOINDENT}, /* 4BSD */
263 {L("ap"), O_AUTOPRINT}, /* 4BSD */
264 {L("aw"), O_AUTOWRITE}, /* 4BSD */
265 {L("bf"), O_BEAUTIFY}, /* 4BSD */
266 {L("co"), O_COLUMNS}, /* 4.4BSD */
267 {L("dir"), O_TMP_DIRECTORY}, /* 4BSD */
268 {L("eb"), O_ERRORBELLS}, /* 4BSD */
269 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */
270 {L("et"), O_EXPANDTAB}, /* NetBSD 5.0 */
271 {L("ex"), O_EXRC}, /* System V (undocumented) */
272 #ifdef GTAGS
273 {L("gt"), O_GTAGSMODE}, /* FreeBSD, NetBSD */
274 #endif
275 {L("fe"), O_FILEENCODING},
276 {L("ht"), O_HARDTABS}, /* 4BSD */
277 {L("ic"), O_IGNORECASE}, /* 4BSD */
278 {L("ie"), O_INPUTENCODING},
279 {L("li"), O_LINES}, /* 4.4BSD */
280 {L("modelines"), O_MODELINE}, /* HPUX */
281 {L("nu"), O_NUMBER}, /* 4BSD */
282 {L("opt"), O_OPTIMIZE}, /* 4BSD */
283 {L("para"), O_PARAGRAPHS}, /* 4BSD */
284 {L("re"), O_REDRAW}, /* O'Reilly */
285 {L("ro"), O_READONLY}, /* 4BSD (undocumented) */
286 {L("scr"), O_SCROLL}, /* 4BSD (undocumented) */
287 {L("sect"), O_SECTIONS}, /* O'Reilly */
288 {L("sh"), O_SHELL}, /* 4BSD */
289 {L("slow"), O_SLOWOPEN}, /* 4BSD */
290 {L("sm"), O_SHOWMATCH}, /* 4BSD */
291 {L("smd"), O_SHOWMODE}, /* 4BSD */
292 {L("sw"), O_SHIFTWIDTH}, /* 4BSD */
293 {L("tag"), O_TAGS}, /* 4BSD (undocumented) */
294 {L("tl"), O_TAGLENGTH}, /* 4BSD */
295 {L("to"), O_TIMEOUT}, /* 4BSD (undocumented) */
296 {L("ts"), O_TABSTOP}, /* 4BSD */
297 {L("tty"), O_TERM}, /* 4BSD (undocumented) */
298 {L("ttytype"), O_TERM}, /* 4BSD (undocumented) */
299 {L("w"), O_WINDOW}, /* O'Reilly */
300 {L("wa"), O_WRITEANY}, /* 4BSD */
301 {L("wi"), O_WINDOW}, /* 4BSD (undocumented) */
302 {L("wl"), O_WRAPLEN}, /* 4.4BSD */
303 {L("wm"), O_WRAPMARGIN}, /* 4BSD */
304 {L("ws"), O_WRAPSCAN}, /* 4BSD */
305 {NULL, 0},
306 };
307
308 /*
309 * opts_init --
310 * Initialize some of the options.
311 *
312 * PUBLIC: int opts_init __P((SCR *, int *));
313 */
314 int
315 opts_init(SCR *sp, int *oargs)
316 {
317 ARGS *argv[2], a, b;
318 OPTLIST const *op;
319 u_long isset, v;
320 int cnt, optindx = 0;
321 char *s;
322 CHAR_T b2[1024];
323
324 if (sizeof optlist / sizeof optlist[0] - 1 != O_OPTIONCOUNT) {
325 fprintf(stderr, "vi: option table size error (%d != %d)\n",
326 (int)(sizeof optlist / sizeof optlist[0] - 1),
327 O_OPTIONCOUNT);
328 exit(1);
329 }
330
331 a.bp = b2;
332 b.bp = NULL;
333 a.len = b.len = 0;
334 argv[0] = &a;
335 argv[1] = &b;
336
337 /* Set numeric and string default values. */
338 #define OI(indx, str) { \
339 a.len = STRLEN(str); \
340 if ((const CHAR_T*)str != b2)/* GCC puts strings in text-space. */\
341 (void)MEMCPY(b2, str, a.len+1); \
342 if (opts_set(sp, argv, NULL)) { \
343 optindx = indx; \
344 goto err; \
345 } \
346 }
347 /*
348 * Indirect global options to global space. Specifically, set up
349 * terminal, lines, columns first, they're used by other options.
350 * Note, don't set the flags until we've set up the indirection.
351 */
352 if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
353 goto err;
354 F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
355 if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
356 goto err;
357 F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
358 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
359 goto err;
360 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
361 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
362 goto err;
363 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
364
365 /* Initialize string values. */
366 (void)SPRINTF(b2, SIZE(b2),
367 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
368 OI(O_CDPATH, b2);
369
370 /*
371 * !!!
372 * Vi historically stored temporary files in /var/tmp. We store them
373 * in /tmp by default, hoping it's a memory based file system. There
374 * are two ways to change this -- the user can set either the directory
375 * option or the TMPDIR environmental variable.
376 */
377 (void)SPRINTF(b2, SIZE(b2),
378 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
379 OI(O_TMP_DIRECTORY, b2);
380 OI(O_ESCAPETIME, L("escapetime=1"));
381 OI(O_KEYTIME, L("keytime=6"));
382 OI(O_MATCHCHARS, L("matchchars=()[]{}<>"));
383 OI(O_MATCHTIME, L("matchtime=7"));
384 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
385 OI(O_MSGCAT, b2);
386 OI(O_REPORT, L("report=5"));
387 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
388 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
389 OI(O_PATH, b2);
390 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), _PATH_PRESERVE);
391 OI(O_RECDIR, b2);
392 OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
393 (void)SPRINTF(b2, SIZE(b2),
394 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
395 OI(O_SHELL, b2);
396 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
397 OI(O_SHIFTWIDTH, L("shiftwidth=8"));
398 OI(O_SIDESCROLL, L("sidescroll=16"));
399 OI(O_TABSTOP, L("tabstop=8"));
400 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
401 OI(O_TAGS, b2);
402
403 /*
404 * XXX
405 * Initialize O_SCROLL here, after term; initializing term should
406 * have created a LINES/COLUMNS value.
407 */
408 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
409 v = 1;
410 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
411 OI(O_SCROLL, b2);
412
413 /*
414 * The default window option values are:
415 * 8 if baud rate <= 600
416 * 16 if baud rate <= 1200
417 * LINES - 1 if baud rate > 1200
418 *
419 * Note, the windows option code will correct any too-large value
420 * or when the O_LINES value is 1.
421 */
422 if (sp->gp->scr_baud(sp, &v))
423 return (1);
424 if (v <= 600)
425 v = 8;
426 else if (v <= 1200)
427 v = 16;
428 else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
429 v = 1;
430
431 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
432 OI(O_WINDOW, b2);
433
434 /*
435 * Set boolean default values, and copy all settings into the default
436 * information. OS_NOFREE is set, we're copying, not replacing.
437 */
438 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt)
439 switch (op->type) {
440 case OPT_0BOOL:
441 break;
442 case OPT_1BOOL:
443 O_SET(sp, cnt);
444 O_D_SET(sp, cnt);
445 break;
446 case OPT_NUM:
447 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
448 break;
449 case OPT_STR:
450 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
451 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
452 goto err;
453 break;
454 default:
455 abort();
456 }
457
458 /*
459 * !!!
460 * Some options can be initialized by the command name or the
461 * command-line arguments. They don't set the default values,
462 * it's historic practice.
463 */
464 for (; *oargs != -1; ++oargs)
465 OI(*oargs, optlist[*oargs].name);
466 #undef OI
467
468 /*
469 * Inform the underlying screen of the initial values of the
470 * edit options.
471 */
472 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
473 isset = O_ISSET(sp, cnt);
474 (void)sp->gp->scr_optchange(sp, cnt, O_STR(sp, cnt), &isset);
475 }
476 return (0);
477
478 err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
479 "031|Unable to set default %s option");
480 return (1);
481 }
482
483 /*
484 * opts_set --
485 * Change the values of one or more options.
486 *
487 * PUBLIC: int opts_set __P((SCR *, ARGS *[], char *));
488 */
489 int
490 opts_set(SCR *sp, ARGS **argv, const char *usage)
491 {
492 enum optdisp disp;
493 enum nresult nret;
494 OPTLIST const *op;
495 OPTION *spo;
496 u_long isset, turnoff, value;
497 int ch, equals, nf, nf2, offset, qmark, rval;
498 CHAR_T *endp, *name, *p, *sep;
499 char *p2, *t2;
500 const char *np;
501 size_t nlen;
502
503 disp = NO_DISPLAY;
504 for (rval = 0; argv[0]->len != 0; ++argv) {
505 /*
506 * The historic vi dumped the options for each occurrence of
507 * "all" in the set list. Puhleeze.
508 */
509 if (!STRCMP(argv[0]->bp, L("all"))) {
510 disp = ALL_DISPLAY;
511 continue;
512 }
513
514 /* Find equals sign or question mark. */
515 for (sep = NULL, equals = qmark = 0,
516 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
517 if (ch == '=' || ch == '?') {
518 if (p == name) {
519 if (usage != NULL)
520 msgq(sp, M_ERR,
521 "032|Usage: %s", usage);
522 return (1);
523 }
524 sep = p;
525 if (ch == '=')
526 equals = 1;
527 else
528 qmark = 1;
529 break;
530 }
531
532 turnoff = 0;
533 op = NULL;
534 if (sep != NULL)
535 *sep++ = '\0';
536
537 /* Search for the name, then name without any leading "no". */
538 if ((op = opts_search(name)) == NULL &&
539 name[0] == L('n') && name[1] == L('o')) {
540 turnoff = 1;
541 name += 2;
542 op = opts_search(name);
543 }
544 if (op == NULL) {
545 opts_nomatch(sp, name);
546 rval = 1;
547 continue;
548 }
549
550 /* Find current option values. */
551 offset = op - optlist;
552 spo = sp->opts + offset;
553
554 /*
555 * !!!
556 * Historically, the question mark could be a separate
557 * argument.
558 */
559 if (!equals && !qmark &&
560 argv[1]->len == 1 && argv[1]->bp[0] == '?') {
561 ++argv;
562 qmark = 1;
563 }
564
565 /* Set name, value. */
566 switch (op->type) {
567 case OPT_0BOOL:
568 case OPT_1BOOL:
569 /* Some options may not be reset. */
570 if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
571 msgq_wstr(sp, M_ERR, name,
572 "291|set: the %s option may not be turned off");
573 rval = 1;
574 break;
575 }
576
577 /* Some options may not be set. */
578 if (F_ISSET(op, OPT_NOSET) && !turnoff) {
579 msgq_wstr(sp, M_ERR, name,
580 "313|set: the %s option may never be turned on");
581 rval = 1;
582 break;
583 }
584
585 if (equals) {
586 msgq_wstr(sp, M_ERR, name,
587 "034|set: [no]%s option doesn't take a value");
588 rval = 1;
589 break;
590 }
591 if (qmark) {
592 if (!disp)
593 disp = SELECT_DISPLAY;
594 F_SET(spo, OPT_SELECTED);
595 break;
596 }
597
598 /*
599 * Do nothing if the value is unchanged, the underlying
600 * functions can be expensive.
601 */
602 isset = !turnoff;
603 if (!F_ISSET(op, OPT_ALWAYS)) {
604 if (isset) {
605 if (O_ISSET(sp, offset))
606 break;
607 } else
608 if (!O_ISSET(sp, offset))
609 break;
610 }
611
612 /* Report to subsystems. */
613 if ((op->func != NULL &&
614 op->func(sp, spo, NULL, &isset)) ||
615 ex_optchange(sp, offset, NULL, &isset) ||
616 v_optchange(sp, offset, NULL, &isset) ||
617 sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
618 rval = 1;
619 break;
620 }
621
622 /* Set the value. */
623 if (isset)
624 O_SET(sp, offset);
625 else
626 O_CLR(sp, offset);
627 break;
628 case OPT_NUM:
629 if (turnoff) {
630 msgq_wstr(sp, M_ERR, name,
631 "035|set: %s option isn't a boolean");
632 rval = 1;
633 break;
634 }
635 if (qmark || !equals) {
636 if (!disp)
637 disp = SELECT_DISPLAY;
638 F_SET(spo, OPT_SELECTED);
639 break;
640 }
641
642 if (!ISDIGIT(sep[0]))
643 goto badnum;
644 if ((nret =
645 nget_uslong(sp, &value, sep, &endp, 10)) != NUM_OK) {
646 INT2CHAR(sp, name, STRLEN(name) + 1,
647 np, nlen);
648 p2 = msg_print(sp, np, &nf);
649 INT2CHAR(sp, sep, STRLEN(sep) + 1,
650 np, nlen);
651 t2 = msg_print(sp, np, &nf2);
652 switch (nret) {
653 case NUM_ERR:
654 msgq(sp, M_SYSERR,
655 "036|set: %s option: %s", p2, t2);
656 break;
657 case NUM_OVER:
658 msgq(sp, M_ERR,
659 "037|set: %s option: %s: value overflow", p2, t2);
660 break;
661 case NUM_OK:
662 case NUM_UNDER:
663 abort();
664 }
665 if (nf)
666 FREE_SPACE(sp, p2, 0);
667 if (nf2)
668 FREE_SPACE(sp, t2, 0);
669 rval = 1;
670 break;
671 }
672 if (*endp && !ISBLANK(*endp)) {
673 badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
674 np, nlen);
675 p2 = msg_print(sp, np, &nf);
676 INT2CHAR(sp, sep, STRLEN(sep) + 1,
677 np, nlen);
678 t2 = msg_print(sp, np, &nf2);
679 msgq(sp, M_ERR,
680 "038|set: %s option: %s is an illegal number", p2, t2);
681 if (nf)
682 FREE_SPACE(sp, p2, 0);
683 if (nf2)
684 FREE_SPACE(sp, t2, 0);
685 rval = 1;
686 break;
687 }
688
689 /* Some options may never be set to zero. */
690 if (F_ISSET(op, OPT_NOZERO) && value == 0) {
691 msgq_wstr(sp, M_ERR, name,
692 "314|set: the %s option may never be set to 0");
693 rval = 1;
694 break;
695 }
696
697 /*
698 * Do nothing if the value is unchanged, the underlying
699 * functions can be expensive.
700 */
701 if (!F_ISSET(op, OPT_ALWAYS) &&
702 O_VAL(sp, offset) == value)
703 break;
704
705 /* Report to subsystems. */
706 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
707 if ((op->func != NULL &&
708 op->func(sp, spo, np, &value)) ||
709 ex_optchange(sp, offset, np, &value) ||
710 v_optchange(sp, offset, np, &value) ||
711 sp->gp->scr_optchange(sp, offset, np, &value)) {
712 rval = 1;
713 break;
714 }
715
716 /* Set the value. */
717 if (o_set(sp, offset, 0, NULL, value))
718 rval = 1;
719 break;
720 case OPT_STR:
721 if (turnoff) {
722 msgq_wstr(sp, M_ERR, name,
723 "039|set: %s option isn't a boolean");
724 rval = 1;
725 break;
726 }
727 if (qmark || !equals) {
728 if (!disp)
729 disp = SELECT_DISPLAY;
730 F_SET(spo, OPT_SELECTED);
731 break;
732 }
733
734 /* Check for strings that must have even length */
735 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
736 msgq_wstr(sp, M_ERR, name,
737 "047|set: the %s option must be in two character groups");
738 rval = 1;
739 break;
740 }
741
742 /*
743 * Do nothing if the value is unchanged, the underlying
744 * functions can be expensive.
745 */
746 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
747 if (!F_ISSET(op, OPT_ALWAYS) &&
748 O_STR(sp, offset) != NULL &&
749 !strcmp(O_STR(sp, offset), np))
750 break;
751
752 /* Report to subsystems. */
753 if ((op->func != NULL &&
754 op->func(sp, spo, np, NULL)) ||
755 ex_optchange(sp, offset, np, NULL) ||
756 v_optchange(sp, offset, np, NULL) ||
757 sp->gp->scr_optchange(sp, offset, np, NULL)) {
758 rval = 1;
759 break;
760 }
761
762 /* Set the value. */
763 if (o_set(sp, offset, OS_STRDUP, np, 0))
764 rval = 1;
765 break;
766 default:
767 abort();
768 }
769 }
770 if (disp != NO_DISPLAY)
771 opts_dump(sp, disp);
772 return (rval);
773 }
774
775 /*
776 * o_set --
777 * Set an option's value.
778 *
779 * PUBLIC: int o_set __P((SCR *, int, u_int, const char *, u_long));
780 */
781 int
782 o_set(SCR *sp, int opt, u_int flags, const char *str, u_long val)
783 {
784 OPTION *op;
785
786 /* Set a pointer to the options area. */
787 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
788 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
789
790 /* Copy the string, if requested. */
791 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
792 msgq(sp, M_SYSERR, NULL);
793 return (1);
794 }
795
796 /* Free the previous string, if requested, and set the value. */
797 if LF_ISSET(OS_DEF)
798 if (LF_ISSET(OS_STR | OS_STRDUP)) {
799 if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL)
800 free(__UNCONST(op->o_def.str));
801 op->o_def.str = str;
802 } else
803 op->o_def.val = val;
804 else
805 if (LF_ISSET(OS_STR | OS_STRDUP)) {
806 if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL)
807 free(__UNCONST(op->o_cur.str));
808 op->o_cur.str = str;
809 } else
810 op->o_cur.val = val;
811 return (0);
812 }
813
814 /*
815 * opts_empty --
816 * Return 1 if the string option is invalid, 0 if it's OK.
817 *
818 * PUBLIC: int opts_empty __P((SCR *, int, int));
819 */
820 int
821 opts_empty(SCR *sp, int off, int silent)
822 {
823 const char *p;
824
825 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
826 if (!silent)
827 msgq_wstr(sp, M_ERR, optlist[off].name,
828 "305|No %s edit option specified");
829 return (1);
830 }
831 return (0);
832 }
833
834 /*
835 * opts_dump --
836 * List the current values of selected options.
837 *
838 * PUBLIC: void opts_dump __P((SCR *, enum optdisp));
839 */
840 void
841 opts_dump(SCR *sp, enum optdisp type)
842 {
843 OPTLIST const *op;
844 int base, b_num, cnt, col, colwidth, curlen, s_num;
845 int numcols, numrows, row;
846 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
847 char nbuf[20];
848
849 /*
850 * Options are output in two groups -- those that fit in a column and
851 * those that don't. Output is done on 6 character "tab" boundaries
852 * for no particular reason. (Since we don't output tab characters,
853 * we can ignore the terminal's tab settings.) Ignore the user's tab
854 * setting because we have no idea how reasonable it is.
855 *
856 * Find a column width we can live with, testing from 10 columns to 1.
857 */
858 for (numcols = 10; numcols > 1; --numcols) {
859 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
860 if (colwidth >= 10) {
861 colwidth =
862 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
863 numcols = sp->cols / colwidth;
864 break;
865 }
866 colwidth = 0;
867 }
868
869 /*
870 * Get the set of options to list, entering them into
871 * the column list or the overflow list.
872 */
873 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
874 cnt = op - optlist;
875
876 /* If OPT_NDISP set, it's never displayed. */
877 if (F_ISSET(op, OPT_NDISP))
878 continue;
879
880 switch (type) {
881 case ALL_DISPLAY: /* Display all. */
882 break;
883 case CHANGED_DISPLAY: /* Display changed. */
884 /* If OPT_ADISP set, it's always "changed". */
885 if (F_ISSET(op, OPT_ADISP))
886 break;
887 switch (op->type) {
888 case OPT_0BOOL:
889 case OPT_1BOOL:
890 case OPT_NUM:
891 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
892 continue;
893 break;
894 case OPT_STR:
895 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
896 (O_D_STR(sp, cnt) != NULL &&
897 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
898 continue;
899 break;
900 }
901 break;
902 case SELECT_DISPLAY: /* Display selected. */
903 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
904 continue;
905 break;
906 default:
907 case NO_DISPLAY:
908 abort();
909 }
910 F_CLR(&sp->opts[cnt], OPT_SELECTED);
911
912 curlen = STRLEN(op->name);
913 switch (op->type) {
914 case OPT_0BOOL:
915 case OPT_1BOOL:
916 if (!O_ISSET(sp, cnt))
917 curlen += 2;
918 break;
919 case OPT_NUM:
920 (void)snprintf(nbuf,
921 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
922 curlen += strlen(nbuf);
923 break;
924 case OPT_STR:
925 if (O_STR(sp, cnt) != NULL)
926 curlen += strlen(O_STR(sp, cnt));
927 curlen += 3;
928 break;
929 }
930 /* Offset by 2 so there's a gap. */
931 if (curlen <= colwidth - 2)
932 s_op[s_num++] = cnt;
933 else
934 b_op[b_num++] = cnt;
935 }
936
937 if (s_num > 0) {
938 /* Figure out the number of rows. */
939 if (s_num > numcols) {
940 numrows = s_num / numcols;
941 if (s_num % numcols)
942 ++numrows;
943 } else
944 numrows = 1;
945
946 /* Display the options in sorted order. */
947 for (row = 0; row < numrows;) {
948 for (base = row, col = 0; col < numcols; ++col) {
949 cnt = opts_print(sp, &optlist[s_op[base]]);
950 if ((base += numrows) >= s_num)
951 break;
952 (void)ex_printf(sp, "%*s",
953 (int)(colwidth - cnt), "");
954 }
955 if (++row < numrows || b_num)
956 (void)ex_puts(sp, "\n");
957 }
958 }
959
960 for (row = 0; row < b_num;) {
961 (void)opts_print(sp, &optlist[b_op[row]]);
962 if (++row < b_num)
963 (void)ex_puts(sp, "\n");
964 }
965 (void)ex_puts(sp, "\n");
966 }
967
968 /*
969 * opts_print --
970 * Print out an option.
971 */
972 static int
973 opts_print(SCR *sp, const OPTLIST *op)
974 {
975 int curlen, offset;
976
977 curlen = 0;
978 offset = op - optlist;
979 switch (op->type) {
980 case OPT_0BOOL:
981 case OPT_1BOOL:
982 curlen += ex_printf(sp,
983 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
984 break;
985 case OPT_NUM:
986 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
987 break;
988 case OPT_STR:
989 curlen += ex_printf(sp, WS"=\"%s\"", op->name,
990 O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset));
991 break;
992 }
993 return (curlen);
994 }
995
996 /*
997 * opts_save --
998 * Write the current configuration to a file.
999 *
1000 * PUBLIC: int opts_save __P((SCR *, FILE *));
1001 */
1002 int
1003 opts_save(SCR *sp, FILE *fp)
1004 {
1005 OPTLIST const *op;
1006 CHAR_T ch;
1007 const CHAR_T *p;
1008 char nch;
1009 const char *np;
1010 int cnt;
1011
1012 for (op = optlist; op->name != NULL; ++op) {
1013 if (F_ISSET(op, OPT_NOSAVE))
1014 continue;
1015 cnt = op - optlist;
1016 switch (op->type) {
1017 case OPT_0BOOL:
1018 case OPT_1BOOL:
1019 if (O_ISSET(sp, cnt))
1020 (void)fprintf(fp, "set "WS"\n", op->name);
1021 else
1022 (void)fprintf(fp, "set no"WS"\n", op->name);
1023 break;
1024 case OPT_NUM:
1025 (void)fprintf(fp,
1026 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1027 break;
1028 case OPT_STR:
1029 if (O_STR(sp, cnt) == NULL)
1030 break;
1031 (void)fprintf(fp, "set ");
1032 for (p = op->name; (ch = *p) != L('\0'); ++p) {
1033 if (ISBLANK(ch) || ch == L('\\'))
1034 (void)putc('\\', fp);
1035 fprintf(fp, WC, ch);
1036 }
1037 (void)putc('=', fp);
1038 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1039 if (isblank(nch) || nch == '\\')
1040 (void)putc('\\', fp);
1041 (void)putc(nch, fp);
1042 }
1043 (void)putc('\n', fp);
1044 break;
1045 }
1046 if (ferror(fp)) {
1047 msgq(sp, M_SYSERR, NULL);
1048 return (1);
1049 }
1050 }
1051 return (0);
1052 }
1053
1054 /*
1055 * opts_search --
1056 * Search for an option.
1057 *
1058 * PUBLIC: OPTLIST const *opts_search __P((CHAR_T *));
1059 */
1060 OPTLIST const *
1061 opts_search(const CHAR_T *name)
1062 {
1063 OPTLIST const *op, *found;
1064 OABBREV atmp, *ap;
1065 OPTLIST otmp;
1066 size_t len;
1067
1068 /* Check list of abbreviations. */
1069 atmp.name = name;
1070 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1071 sizeof(OABBREV), opts_abbcmp)) != NULL)
1072 return (optlist + ap->offset);
1073
1074 /* Check list of options. */
1075 otmp.name = name;
1076 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1077 sizeof(OPTLIST), opts_cmp)) != NULL)
1078 return (op);
1079
1080 /*
1081 * Check to see if the name is the prefix of one (and only one)
1082 * option. If so, return the option.
1083 */
1084 len = STRLEN(name);
1085 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1086 if (op->name[0] < name[0])
1087 continue;
1088 if (op->name[0] > name[0])
1089 break;
1090 if (!MEMCMP(op->name, name, len)) {
1091 if (found != NULL)
1092 return (NULL);
1093 found = op;
1094 }
1095 }
1096 return (found);
1097 }
1098
1099 /*
1100 * opts_nomatch --
1101 * Standard nomatch error message for options.
1102 *
1103 * PUBLIC: void opts_nomatch __P((SCR *, CHAR_T *));
1104 */
1105 void
1106 opts_nomatch(SCR *sp, const CHAR_T *name)
1107 {
1108 msgq_wstr(sp, M_ERR, name,
1109 "033|set: no %s option: 'set all' gives all option values");
1110 }
1111
1112 static int
1113 opts_abbcmp(const void *a, const void *b)
1114 {
1115 return(STRCMP(((const OABBREV *)a)->name, ((const OABBREV *)b)->name));
1116 }
1117
1118 static int
1119 opts_cmp(const void *a, const void *b)
1120 {
1121 return(STRCMP(((const OPTLIST *)a)->name, ((const OPTLIST *)b)->name));
1122 }
1123
1124 /*
1125 * opts_copy --
1126 * Copy a screen's OPTION array.
1127 *
1128 * PUBLIC: int opts_copy __P((SCR *, SCR *));
1129 */
1130 int
1131 opts_copy(SCR *orig, SCR *sp)
1132 {
1133 int cnt, rval;
1134
1135 /* Copy most everything without change. */
1136 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1137
1138 /* Copy the string edit options. */
1139 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1140 if (optlist[cnt].type != OPT_STR ||
1141 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1142 continue;
1143 /*
1144 * If never set, or already failed, NULL out the entries --
1145 * have to continue after failure, otherwise would have two
1146 * screens referencing the same memory.
1147 */
1148 if (rval || O_STR(sp, cnt) == NULL) {
1149 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1150 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1151 continue;
1152 }
1153
1154 /* Copy the current string. */
1155 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1156 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1157 goto nomem;
1158 }
1159
1160 /* Copy the default string. */
1161 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1162 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1163 nomem: msgq(orig, M_SYSERR, NULL);
1164 rval = 1;
1165 }
1166 }
1167 return (rval);
1168 }
1169
1170 /*
1171 * opts_free --
1172 * Free all option strings
1173 *
1174 * PUBLIC: void opts_free __P((SCR *));
1175 */
1176 void
1177 opts_free(SCR *sp)
1178 {
1179 int cnt;
1180
1181 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1182 if (optlist[cnt].type != OPT_STR ||
1183 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1184 continue;
1185 if (O_STR(sp, cnt) != NULL)
1186 free(__UNCONST(O_STR(sp, cnt)));
1187 if (O_D_STR(sp, cnt) != NULL)
1188 free(__UNCONST(O_D_STR(sp, cnt)));
1189 }
1190 }
NetBSD on the FriendlyARM MINI2440