options.c revision 1.5.4.1
1 /* $NetBSD: options.c,v 1.5.4.1 2019/06/10 21:51:35 christos Exp $ */ 2 /*- 3 * Copyright (c) 1991, 1993, 1994 4 * The Regents of the University of California. All rights reserved. 5 * Copyright (c) 1991, 1993, 1994, 1995, 1996 6 * Keith Bostic. All rights reserved. 7 * 8 * See the LICENSE file for redistribution information. 9 */ 10 11 #include "config.h" 12 13 #include <sys/cdefs.h> 14 #if 0 15 #ifndef lint 16 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 "; 17 #endif /* not lint */ 18 #else 19 __RCSID("$NetBSD: options.c,v 1.5.4.1 2019/06/10 21:51:35 christos Exp $"); 20 #endif 21 22 #include <sys/types.h> 23 #include <sys/queue.h> 24 #include <sys/stat.h> 25 #include <sys/time.h> 26 27 #include <bitstring.h> 28 #include <ctype.h> 29 #include <errno.h> 30 #include <limits.h> 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <string.h> 34 #include <unistd.h> 35 36 #include "common.h" 37 #include "../vi/vi.h" 38 #include "pathnames.h" 39 40 static int opts_abbcmp __P((const void *, const void *)); 41 static int opts_cmp __P((const void *, const void *)); 42 static int opts_print __P((SCR *, OPTLIST const *)); 43 44 #ifdef USE_WIDECHAR 45 #define OPT_WC 0 46 #else 47 #define OPT_WC (OPT_NOSAVE | OPT_NDISP) 48 #endif 49 50 /* 51 * O'Reilly noted options and abbreviations are from "Learning the VI Editor", 52 * Fifth Edition, May 1992. There's no way of knowing what systems they are 53 * actually from. 54 * 55 * HPUX noted options and abbreviations are from "The Ultimate Guide to the 56 * VI and EX Text Editors", 1990. 57 * 58 * This list must be sorted... 59 */ 60 OPTLIST const optlist[] = { 61 /* O_ALTWERASE 4.4BSD */ 62 {L("altwerase"), f_altwerase, OPT_0BOOL, 0}, 63 /* O_AUTOINDENT 4BSD */ 64 {L("autoindent"), NULL, OPT_0BOOL, 0}, 65 /* O_AUTOPRINT 4BSD */ 66 {L("autoprint"), NULL, OPT_1BOOL, 0}, 67 /* O_AUTOWRITE 4BSD */ 68 {L("autowrite"), NULL, OPT_0BOOL, 0}, 69 /* O_BACKUP 4.4BSD */ 70 {L("backup"), NULL, OPT_STR, 0}, 71 /* O_BEAUTIFY 4BSD */ 72 {L("beautify"), NULL, OPT_0BOOL, 0}, 73 /* O_CDPATH 4.4BSD */ 74 {L("cdpath"), NULL, OPT_STR, 0}, 75 /* O_CEDIT 4.4BSD */ 76 {L("cedit"), NULL, OPT_STR, 0}, 77 /* O_COLUMNS 4.4BSD */ 78 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE}, 79 /* O_COMBINED */ 80 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC}, 81 /* O_COMMENT 4.4BSD */ 82 {L("comment"), NULL, OPT_0BOOL, 0}, 83 /* O_TMP_DIRECTORY 4BSD */ 84 {L("directory"), NULL, OPT_STR, 0}, 85 /* O_EDCOMPATIBLE 4BSD */ 86 {L("edcompatible"),NULL, OPT_0BOOL, 0}, 87 /* O_ERRORBELLS 4BSD */ 88 {L("errorbells"), NULL, OPT_0BOOL, 0}, 89 /* O_ESCAPETIME 4.4BSD */ 90 {L("escapetime"), NULL, OPT_NUM, 0}, 91 /* O_EXPANDTAB NetBSD 5.0 */ 92 {L("expandtab"), NULL, OPT_0BOOL, 0}, 93 /* O_EXRC System V (undocumented) */ 94 {L("exrc"), NULL, OPT_0BOOL, 0}, 95 /* O_EXTENDED 4.4BSD */ 96 {L("extended"), f_recompile, OPT_0BOOL, 0}, 97 /* O_FILEC 4.4BSD */ 98 {L("filec"), NULL, OPT_STR, 0}, 99 /* O_FILEENCODING */ 100 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC}, 101 /* O_FLASH HPUX */ 102 {L("flash"), NULL, OPT_1BOOL, 0}, 103 /* O_GTAGSMODE FreeBSD/NetBSD */ 104 #ifdef GTAGS 105 {L("gtagsmode"),NULL, OPT_0BOOL, 0}, 106 #else 107 {L("gtagsmode"),NULL, OPT_0BOOL, OPT_NDISP|OPT_NOSAVE|OPT_NOSET}, 108 #endif 109 /* O_HARDTABS 4BSD */ 110 {L("hardtabs"), NULL, OPT_NUM, 0}, 111 /* O_ICLOWER 4.4BSD */ 112 {L("iclower"), f_recompile, OPT_0BOOL, 0}, 113 /* O_IGNORECASE 4BSD */ 114 {L("ignorecase"), f_recompile, OPT_0BOOL, 0}, 115 /* O_IMCTRL nvi-m17n/NetBSD */ 116 #ifdef IMCTRL 117 {L("imctrl"), f_imctrl, OPT_0BOOL, 0}, 118 #else 119 {L("imctrl"), NULL, OPT_0BOOL, OPT_NDISP|OPT_NOSAVE|OPT_NOSET}, 120 #endif 121 /* O_IMKEY nvi-m17n/NetBSD */ 122 #ifdef IMCTRL 123 {L("imkey"), NULL, OPT_STR, 0}, 124 #else 125 {L("imkey"), NULL, OPT_STR, OPT_NDISP|OPT_NOSAVE}, 126 #endif 127 /* O_INPUTENCODING */ 128 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC}, 129 /* O_KEYTIME 4.4BSD */ 130 {L("keytime"), NULL, OPT_NUM, 0}, 131 /* O_LEFTRIGHT 4.4BSD */ 132 {L("leftright"), f_reformat, OPT_0BOOL, 0}, 133 /* O_LINES 4.4BSD */ 134 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE}, 135 /* O_LISP 4BSD 136 * XXX 137 * When the lisp option is implemented, delete the OPT_NOSAVE flag, 138 * so that :mkexrc dumps it. 139 */ 140 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE}, 141 /* O_LIST 4BSD */ 142 {L("list"), f_reformat, OPT_0BOOL, 0}, 143 /* O_LOCKFILES 4.4BSD 144 * XXX 145 * Locking isn't reliable enough over NFS to require it, in addition, 146 * it's a serious startup performance problem over some remote links. 147 */ 148 {L("lock"), NULL, OPT_1BOOL, 0}, 149 /* O_MAGIC 4BSD */ 150 {L("magic"), NULL, OPT_1BOOL, 0}, 151 /* O_MATCHCHARS netbsd 2.0 */ 152 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS}, 153 /* O_MATCHTIME 4.4BSD */ 154 {L("matchtime"), NULL, OPT_NUM, 0}, 155 /* O_MESG 4BSD */ 156 {L("mesg"), NULL, OPT_1BOOL, 0}, 157 /* O_MODELINE 4BSD 158 * !!! 159 * This has been documented in historical systems as both "modeline" 160 * and as "modelines". Regardless of the name, this option represents 161 * a security problem of mammoth proportions, not to mention a stunning 162 * example of what your intro CS professor referred to as the perils of 163 * mixing code and data. Don't add it, or I will kill you. 164 */ 165 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET}, 166 /* O_MSGCAT 4.4BSD */ 167 {L("msgcat"), f_msgcat, OPT_STR, 0}, 168 /* O_NOPRINT 4.4BSD */ 169 {L("noprint"), f_print, OPT_STR, 0}, 170 /* O_NUMBER 4BSD */ 171 {L("number"), f_reformat, OPT_0BOOL, 0}, 172 /* O_OCTAL 4.4BSD */ 173 {L("octal"), f_print, OPT_0BOOL, 0}, 174 /* O_OPEN 4BSD */ 175 {L("open"), NULL, OPT_1BOOL, 0}, 176 /* O_OPTIMIZE 4BSD */ 177 {L("optimize"), NULL, OPT_1BOOL, 0}, 178 /* O_PARAGRAPHS 4BSD */ 179 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS}, 180 /* O_PATH 4.4BSD */ 181 {L("path"), NULL, OPT_STR, 0}, 182 /* O_PRINT 4.4BSD */ 183 {L("print"), f_print, OPT_STR, 0}, 184 /* O_PROMPT 4BSD */ 185 {L("prompt"), NULL, OPT_1BOOL, 0}, 186 /* O_READONLY 4BSD (undocumented) */ 187 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS}, 188 /* O_RECDIR 4.4BSD */ 189 {L("recdir"), NULL, OPT_STR, 0}, 190 /* O_REDRAW 4BSD */ 191 {L("redraw"), NULL, OPT_0BOOL, 0}, 192 /* O_REMAP 4BSD */ 193 {L("remap"), NULL, OPT_1BOOL, 0}, 194 /* O_REPORT 4BSD */ 195 {L("report"), NULL, OPT_NUM, 0}, 196 /* O_RULER 4.4BSD */ 197 {L("ruler"), NULL, OPT_0BOOL, 0}, 198 /* O_SCROLL 4BSD */ 199 {L("scroll"), NULL, OPT_NUM, 0}, 200 /* O_SEARCHINCR 4.4BSD */ 201 {L("searchincr"), NULL, OPT_0BOOL, 0}, 202 /* O_SECTIONS 4BSD */ 203 {L("sections"), NULL, OPT_STR, OPT_PAIRS}, 204 /* O_SECURE 4.4BSD */ 205 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET}, 206 /* O_SHELL 4BSD */ 207 {L("shell"), NULL, OPT_STR, 0}, 208 /* O_SHELLMETA 4.4BSD */ 209 {L("shellmeta"), NULL, OPT_STR, 0}, 210 /* O_SHIFTWIDTH 4BSD */ 211 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO}, 212 /* O_SHOWMATCH 4BSD */ 213 {L("showmatch"), NULL, OPT_0BOOL, 0}, 214 /* O_SHOWMODE 4.4BSD */ 215 {L("showmode"), NULL, OPT_0BOOL, 0}, 216 /* O_SIDESCROLL 4.4BSD */ 217 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO}, 218 /* O_SLOWOPEN 4BSD */ 219 {L("slowopen"), NULL, OPT_0BOOL, 0}, 220 /* O_SOURCEANY 4BSD (undocumented) 221 * !!! 222 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they 223 * were owned by the user. The sourceany option was an undocumented 224 * feature of historic vi which permitted the startup source'ing of 225 * .exrc files the user didn't own. This is an obvious security problem, 226 * and we ignore the option. 227 */ 228 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET}, 229 /* O_TABSTOP 4BSD */ 230 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO}, 231 /* O_TAGLENGTH 4BSD */ 232 {L("taglength"), NULL, OPT_NUM, 0}, 233 /* O_TAGS 4BSD */ 234 {L("tags"), NULL, OPT_STR, 0}, 235 /* O_TERM 4BSD 236 * !!! 237 * By default, the historic vi always displayed information about two 238 * options, redraw and term. Term seems sufficient. 239 */ 240 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE}, 241 /* O_TERSE 4BSD */ 242 {L("terse"), NULL, OPT_0BOOL, 0}, 243 /* O_TILDEOP 4.4BSD */ 244 {L("tildeop"), NULL, OPT_0BOOL, 0}, 245 /* O_TIMEOUT 4BSD (undocumented) */ 246 {L("timeout"), NULL, OPT_1BOOL, 0}, 247 /* O_TTYWERASE 4.4BSD */ 248 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0}, 249 /* O_VERBOSE 4.4BSD */ 250 {L("verbose"), NULL, OPT_0BOOL, 0}, 251 /* O_W1200 4BSD */ 252 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 253 /* O_W300 4BSD */ 254 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 255 /* O_W9600 4BSD */ 256 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 257 /* O_WARN 4BSD */ 258 {L("warn"), NULL, OPT_1BOOL, 0}, 259 /* O_WINDOW 4BSD */ 260 {L("window"), f_window, OPT_NUM, 0}, 261 /* O_WINDOWNAME 4BSD */ 262 {L("windowname"), NULL, OPT_0BOOL, 0}, 263 /* O_WRAPLEN 4.4BSD */ 264 {L("wraplen"), NULL, OPT_NUM, 0}, 265 /* O_WRAPMARGIN 4BSD */ 266 {L("wrapmargin"), NULL, OPT_NUM, 0}, 267 /* O_WRAPSCAN 4BSD */ 268 {L("wrapscan"), NULL, OPT_1BOOL, 0}, 269 /* O_WRITEANY 4BSD */ 270 {L("writeany"), NULL, OPT_0BOOL, 0}, 271 {NULL, NULL, OPT_NUM, 0}, 272 }; 273 274 typedef struct abbrev { 275 const CHAR_T *name; 276 int offset; 277 } OABBREV; 278 279 static OABBREV const abbrev[] = { 280 {L("ai"), O_AUTOINDENT}, /* 4BSD */ 281 {L("ap"), O_AUTOPRINT}, /* 4BSD */ 282 {L("aw"), O_AUTOWRITE}, /* 4BSD */ 283 {L("bf"), O_BEAUTIFY}, /* 4BSD */ 284 {L("co"), O_COLUMNS}, /* 4.4BSD */ 285 {L("dir"), O_TMP_DIRECTORY}, /* 4BSD */ 286 {L("eb"), O_ERRORBELLS}, /* 4BSD */ 287 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */ 288 {L("et"), O_EXPANDTAB}, /* NetBSD 5.0 */ 289 {L("ex"), O_EXRC}, /* System V (undocumented) */ 290 {L("fe"), O_FILEENCODING}, 291 #ifdef GTAGS 292 {L("gt"), O_GTAGSMODE}, /* FreeBSD, NetBSD */ 293 #endif 294 {L("ht"), O_HARDTABS}, /* 4BSD */ 295 {L("ic"), O_IGNORECASE}, /* 4BSD */ 296 {L("ie"), O_INPUTENCODING}, 297 {L("li"), O_LINES}, /* 4.4BSD */ 298 {L("modelines"), O_MODELINE}, /* HPUX */ 299 {L("nu"), O_NUMBER}, /* 4BSD */ 300 {L("opt"), O_OPTIMIZE}, /* 4BSD */ 301 {L("para"), O_PARAGRAPHS}, /* 4BSD */ 302 {L("re"), O_REDRAW}, /* O'Reilly */ 303 {L("ro"), O_READONLY}, /* 4BSD (undocumented) */ 304 {L("scr"), O_SCROLL}, /* 4BSD (undocumented) */ 305 {L("sect"), O_SECTIONS}, /* O'Reilly */ 306 {L("sh"), O_SHELL}, /* 4BSD */ 307 {L("slow"), O_SLOWOPEN}, /* 4BSD */ 308 {L("sm"), O_SHOWMATCH}, /* 4BSD */ 309 {L("smd"), O_SHOWMODE}, /* 4BSD */ 310 {L("sw"), O_SHIFTWIDTH}, /* 4BSD */ 311 {L("tag"), O_TAGS}, /* 4BSD (undocumented) */ 312 {L("tl"), O_TAGLENGTH}, /* 4BSD */ 313 {L("to"), O_TIMEOUT}, /* 4BSD (undocumented) */ 314 {L("ts"), O_TABSTOP}, /* 4BSD */ 315 {L("tty"), O_TERM}, /* 4BSD (undocumented) */ 316 {L("ttytype"), O_TERM}, /* 4BSD (undocumented) */ 317 {L("w"), O_WINDOW}, /* O'Reilly */ 318 {L("wa"), O_WRITEANY}, /* 4BSD */ 319 {L("wi"), O_WINDOW}, /* 4BSD (undocumented) */ 320 {L("wl"), O_WRAPLEN}, /* 4.4BSD */ 321 {L("wm"), O_WRAPMARGIN}, /* 4BSD */ 322 {L("ws"), O_WRAPSCAN}, /* 4BSD */ 323 {NULL, 0}, 324 }; 325 326 /* 327 * opts_init -- 328 * Initialize some of the options. 329 * 330 * PUBLIC: int opts_init __P((SCR *, int *)); 331 */ 332 int 333 opts_init(SCR *sp, int *oargs) 334 { 335 ARGS *argv[2], a, b; 336 OPTLIST const *op; 337 u_long isset, v; 338 int cnt, optindx = 0; 339 char *s; 340 CHAR_T b2[1024]; 341 342 if (sizeof optlist / sizeof optlist[0] - 1 != O_OPTIONCOUNT) { 343 fprintf(stderr, "vi: option table size error (%d != %d)\n", 344 (int)(sizeof optlist / sizeof optlist[0] - 1), 345 O_OPTIONCOUNT); 346 exit(1); 347 } 348 349 a.bp = b2; 350 b.bp = NULL; 351 a.len = b.len = 0; 352 argv[0] = &a; 353 argv[1] = &b; 354 355 /* Set numeric and string default values. */ 356 #define OI(indx, str) { \ 357 a.len = STRLEN(str); \ 358 if ((const CHAR_T*)str != b2)/* GCC puts strings in text-space. */\ 359 (void)MEMCPY(b2, str, a.len+1); \ 360 if (opts_set(sp, argv, NULL)) { \ 361 optindx = indx; \ 362 goto err; \ 363 } \ 364 } 365 /* 366 * Indirect global options to global space. Specifically, set up 367 * terminal, lines, columns first, they're used by other options. 368 * Note, don't set the flags until we've set up the indirection. 369 */ 370 if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) 371 goto err; 372 F_SET(&sp->opts[O_TERM], OPT_GLOBAL); 373 if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) 374 goto err; 375 F_SET(&sp->opts[O_LINES], OPT_GLOBAL); 376 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) 377 goto err; 378 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL); 379 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) 380 goto err; 381 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL); 382 383 /* Initialize string values. */ 384 (void)SPRINTF(b2, SIZE(b2), 385 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s); 386 OI(O_CDPATH, b2); 387 388 /* 389 * !!! 390 * Vi historically stored temporary files in /var/tmp. We store them 391 * in /tmp by default, hoping it's a memory based file system. There 392 * are two ways to change this -- the user can set either the directory 393 * option or the TMPDIR environmental variable. 394 */ 395 (void)SPRINTF(b2, SIZE(b2), 396 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s); 397 OI(O_TMP_DIRECTORY, b2); 398 OI(O_ESCAPETIME, L("escapetime=1")); 399 OI(O_KEYTIME, L("keytime=6")); 400 OI(O_MATCHCHARS, L("matchchars=()[]{}<>")); 401 OI(O_MATCHTIME, L("matchtime=7")); 402 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT); 403 OI(O_MSGCAT, b2); 404 OI(O_REPORT, L("report=5")); 405 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp")); 406 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), ""); 407 OI(O_PATH, b2); 408 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), _PATH_PRESERVE); 409 OI(O_RECDIR, b2); 410 OI(O_SECTIONS, L("sections=NHSHH HUnhsh")); 411 (void)SPRINTF(b2, SIZE(b2), 412 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s); 413 OI(O_SHELL, b2); 414 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\")); 415 OI(O_SHIFTWIDTH, L("shiftwidth=8")); 416 OI(O_SIDESCROLL, L("sidescroll=16")); 417 OI(O_TABSTOP, L("tabstop=8")); 418 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS); 419 OI(O_TAGS, b2); 420 #ifdef IMCTRL 421 OI(O_IMKEY, L("imkey=/?aioAIO")); 422 #endif 423 424 /* 425 * XXX 426 * Initialize O_SCROLL here, after term; initializing term should 427 * have created a LINES/COLUMNS value. 428 */ 429 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0) 430 v = 1; 431 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v); 432 OI(O_SCROLL, b2); 433 434 /* 435 * The default window option values are: 436 * 8 if baud rate <= 600 437 * 16 if baud rate <= 1200 438 * LINES - 1 if baud rate > 1200 439 * 440 * Note, the windows option code will correct any too-large value 441 * or when the O_LINES value is 1. 442 */ 443 if (sp->gp->scr_baud(sp, &v)) 444 return (1); 445 if (v <= 600) 446 v = 8; 447 else if (v <= 1200) 448 v = 16; 449 else if ((v = O_VAL(sp, O_LINES) - 1) == 0) 450 v = 1; 451 452 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v); 453 OI(O_WINDOW, b2); 454 455 /* 456 * Set boolean default values, and copy all settings into the default 457 * information. OS_NOFREE is set, we're copying, not replacing. 458 */ 459 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) 460 switch (op->type) { 461 case OPT_0BOOL: 462 break; 463 case OPT_1BOOL: 464 O_SET(sp, cnt); 465 O_D_SET(sp, cnt); 466 break; 467 case OPT_NUM: 468 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt)); 469 break; 470 case OPT_STR: 471 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt, 472 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) 473 goto err; 474 break; 475 default: 476 abort(); 477 } 478 479 /* 480 * !!! 481 * Some options can be initialized by the command name or the 482 * command-line arguments. They don't set the default values, 483 * it's historic practice. 484 */ 485 for (; *oargs != -1; ++oargs) 486 OI(*oargs, optlist[*oargs].name); 487 #undef OI 488 489 /* 490 * Inform the underlying screen of the initial values of the 491 * edit options. 492 */ 493 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) { 494 isset = O_ISSET(sp, cnt); 495 (void)sp->gp->scr_optchange(sp, cnt, O_STR(sp, cnt), &isset); 496 } 497 return (0); 498 499 err: msgq_wstr(sp, M_ERR, optlist[optindx].name, 500 "031|Unable to set default %s option"); 501 return (1); 502 } 503 504 /* 505 * opts_set -- 506 * Change the values of one or more options. 507 * 508 * PUBLIC: int opts_set __P((SCR *, ARGS *[], const char *)); 509 */ 510 int 511 opts_set(SCR *sp, ARGS **argv, const char *usage) 512 { 513 enum optdisp disp; 514 enum nresult nret; 515 OPTLIST const *op; 516 OPTION *spo; 517 u_long isset, turnoff, value; 518 int ch, equals, nf, nf2, offset, qmark, rval; 519 CHAR_T *endp, *name, *p, *sep; 520 char *p2, *t2; 521 const char *np; 522 size_t nlen; 523 524 disp = NO_DISPLAY; 525 for (rval = 0; argv[0]->len != 0; ++argv) { 526 /* 527 * The historic vi dumped the options for each occurrence of 528 * "all" in the set list. Puhleeze. 529 */ 530 if (!STRCMP(argv[0]->bp, L("all"))) { 531 disp = ALL_DISPLAY; 532 continue; 533 } 534 535 /* Find equals sign or question mark. */ 536 for (sep = NULL, equals = qmark = 0, 537 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p) 538 if (ch == '=' || ch == '?') { 539 if (p == name) { 540 if (usage != NULL) 541 msgq(sp, M_ERR, 542 "032|Usage: %s", usage); 543 return (1); 544 } 545 sep = p; 546 if (ch == '=') 547 equals = 1; 548 else 549 qmark = 1; 550 break; 551 } 552 553 turnoff = 0; 554 op = NULL; 555 if (sep != NULL) 556 *sep++ = '\0'; 557 558 /* Search for the name, then name without any leading "no". */ 559 if ((op = opts_search(name)) == NULL && 560 name[0] == L('n') && name[1] == L('o')) { 561 turnoff = 1; 562 name += 2; 563 op = opts_search(name); 564 } 565 if (op == NULL) { 566 opts_nomatch(sp, name); 567 rval = 1; 568 continue; 569 } 570 571 /* Find current option values. */ 572 offset = op - optlist; 573 spo = sp->opts + offset; 574 575 /* 576 * !!! 577 * Historically, the question mark could be a separate 578 * argument. 579 */ 580 if (!equals && !qmark && 581 argv[1]->len == 1 && argv[1]->bp[0] == '?') { 582 ++argv; 583 qmark = 1; 584 } 585 586 /* Set name, value. */ 587 switch (op->type) { 588 case OPT_0BOOL: 589 case OPT_1BOOL: 590 /* Some options may not be reset. */ 591 if (F_ISSET(op, OPT_NOUNSET) && turnoff) { 592 msgq_wstr(sp, M_ERR, name, 593 "291|set: the %s option may not be turned off"); 594 rval = 1; 595 break; 596 } 597 598 /* Some options may not be set. */ 599 if (F_ISSET(op, OPT_NOSET) && !turnoff) { 600 msgq_wstr(sp, M_ERR, name, 601 "313|set: the %s option may never be turned on"); 602 rval = 1; 603 break; 604 } 605 606 if (equals) { 607 msgq_wstr(sp, M_ERR, name, 608 "034|set: [no]%s option doesn't take a value"); 609 rval = 1; 610 break; 611 } 612 if (qmark) { 613 if (!disp) 614 disp = SELECT_DISPLAY; 615 F_SET(spo, OPT_SELECTED); 616 break; 617 } 618 619 /* 620 * Do nothing if the value is unchanged, the underlying 621 * functions can be expensive. 622 */ 623 isset = !turnoff; 624 if (!F_ISSET(op, OPT_ALWAYS)) { 625 if (isset) { 626 if (O_ISSET(sp, offset)) 627 break; 628 } else 629 if (!O_ISSET(sp, offset)) 630 break; 631 } 632 633 /* Report to subsystems. */ 634 if ((op->func != NULL && 635 op->func(sp, spo, NULL, &isset)) || 636 ex_optchange(sp, offset, NULL, &isset) || 637 v_optchange(sp, offset, NULL, &isset) || 638 sp->gp->scr_optchange(sp, offset, NULL, &isset)) { 639 rval = 1; 640 break; 641 } 642 643 /* Set the value. */ 644 if (isset) 645 O_SET(sp, offset); 646 else 647 O_CLR(sp, offset); 648 break; 649 case OPT_NUM: 650 if (turnoff) { 651 msgq_wstr(sp, M_ERR, name, 652 "035|set: %s option isn't a boolean"); 653 rval = 1; 654 break; 655 } 656 if (qmark || !equals) { 657 if (!disp) 658 disp = SELECT_DISPLAY; 659 F_SET(spo, OPT_SELECTED); 660 break; 661 } 662 663 if (!ISDIGIT((UCHAR_T)sep[0])) 664 goto badnum; 665 if ((nret = 666 nget_uslong(sp, &value, sep, &endp, 10)) != NUM_OK) { 667 INT2CHAR(sp, name, STRLEN(name) + 1, 668 np, nlen); 669 p2 = msg_print(sp, np, &nf); 670 INT2CHAR(sp, sep, STRLEN(sep) + 1, 671 np, nlen); 672 t2 = msg_print(sp, np, &nf2); 673 switch (nret) { 674 case NUM_ERR: 675 msgq(sp, M_SYSERR, 676 "036|set: %s option: %s", p2, t2); 677 break; 678 case NUM_OVER: 679 msgq(sp, M_ERR, 680 "037|set: %s option: %s: value overflow", p2, t2); 681 break; 682 case NUM_OK: 683 case NUM_UNDER: 684 abort(); 685 } 686 if (nf) 687 FREE_SPACE(sp, p2, 0); 688 if (nf2) 689 FREE_SPACE(sp, t2, 0); 690 rval = 1; 691 break; 692 } 693 if (*endp && !ISBLANK(*endp)) { 694 badnum: INT2CHAR(sp, name, STRLEN(name) + 1, 695 np, nlen); 696 p2 = msg_print(sp, np, &nf); 697 INT2CHAR(sp, sep, STRLEN(sep) + 1, 698 np, nlen); 699 t2 = msg_print(sp, np, &nf2); 700 msgq(sp, M_ERR, 701 "038|set: %s option: %s is an illegal number", p2, t2); 702 if (nf) 703 FREE_SPACE(sp, p2, 0); 704 if (nf2) 705 FREE_SPACE(sp, t2, 0); 706 rval = 1; 707 break; 708 } 709 710 /* Some options may never be set to zero. */ 711 if (F_ISSET(op, OPT_NOZERO) && value == 0) { 712 msgq_wstr(sp, M_ERR, name, 713 "314|set: the %s option may never be set to 0"); 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 if (!F_ISSET(op, OPT_ALWAYS) && 723 O_VAL(sp, offset) == value) 724 break; 725 726 /* Report to subsystems. */ 727 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen); 728 if ((op->func != NULL && 729 op->func(sp, spo, np, &value)) || 730 ex_optchange(sp, offset, np, &value) || 731 v_optchange(sp, offset, np, &value) || 732 sp->gp->scr_optchange(sp, offset, np, &value)) { 733 rval = 1; 734 break; 735 } 736 737 /* Set the value. */ 738 if (o_set(sp, offset, 0, NULL, value)) 739 rval = 1; 740 break; 741 case OPT_STR: 742 if (turnoff) { 743 msgq_wstr(sp, M_ERR, name, 744 "039|set: %s option isn't a boolean"); 745 rval = 1; 746 break; 747 } 748 if (qmark || !equals) { 749 if (!disp) 750 disp = SELECT_DISPLAY; 751 F_SET(spo, OPT_SELECTED); 752 break; 753 } 754 755 /* Check for strings that must have even length */ 756 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) { 757 msgq_wstr(sp, M_ERR, name, 758 "047|set: the %s option must be in two character groups"); 759 rval = 1; 760 break; 761 } 762 763 /* 764 * Do nothing if the value is unchanged, the underlying 765 * functions can be expensive. 766 */ 767 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen); 768 if (!F_ISSET(op, OPT_ALWAYS) && 769 O_STR(sp, offset) != NULL && 770 !strcmp(O_STR(sp, offset), np)) 771 break; 772 773 /* Report to subsystems. */ 774 if ((op->func != NULL && 775 op->func(sp, spo, np, NULL)) || 776 ex_optchange(sp, offset, np, NULL) || 777 v_optchange(sp, offset, np, NULL) || 778 sp->gp->scr_optchange(sp, offset, np, NULL)) { 779 rval = 1; 780 break; 781 } 782 783 /* Set the value. */ 784 if (o_set(sp, offset, OS_STRDUP, np, 0)) 785 rval = 1; 786 break; 787 default: 788 abort(); 789 } 790 } 791 if (disp != NO_DISPLAY) 792 opts_dump(sp, disp); 793 return (rval); 794 } 795 796 /* 797 * o_set -- 798 * Set an option's value. 799 * 800 * PUBLIC: int o_set __P((SCR *, int, u_int, const char *, u_long)); 801 */ 802 int 803 o_set(SCR *sp, int opt, u_int flags, const char *str, u_long val) 804 { 805 OPTION *op; 806 807 /* Set a pointer to the options area. */ 808 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ? 809 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt]; 810 811 /* Copy the string, if requested. */ 812 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) { 813 msgq(sp, M_SYSERR, NULL); 814 return (1); 815 } 816 817 /* Free the previous string, if requested, and set the value. */ 818 if LF_ISSET(OS_DEF) 819 if (LF_ISSET(OS_STR | OS_STRDUP)) { 820 if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL) 821 free(__UNCONST(op->o_def.str)); 822 op->o_def.str = str; 823 } else 824 op->o_def.val = val; 825 else 826 if (LF_ISSET(OS_STR | OS_STRDUP)) { 827 if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL) 828 free(__UNCONST(op->o_cur.str)); 829 op->o_cur.str = str; 830 } else 831 op->o_cur.val = val; 832 return (0); 833 } 834 835 /* 836 * opts_empty -- 837 * Return 1 if the string option is invalid, 0 if it's OK. 838 * 839 * PUBLIC: int opts_empty __P((SCR *, int, int)); 840 */ 841 int 842 opts_empty(SCR *sp, int off, int silent) 843 { 844 const char *p; 845 846 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') { 847 if (!silent) 848 msgq_wstr(sp, M_ERR, optlist[off].name, 849 "305|No %s edit option specified"); 850 return (1); 851 } 852 return (0); 853 } 854 855 /* 856 * opts_dump -- 857 * List the current values of selected options. 858 * 859 * PUBLIC: void opts_dump __P((SCR *, enum optdisp)); 860 */ 861 void 862 opts_dump(SCR *sp, enum optdisp type) 863 { 864 OPTLIST const *op; 865 int base, b_num, cnt, col, colwidth, curlen, s_num; 866 int numcols, numrows, row; 867 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT]; 868 char nbuf[20]; 869 870 /* 871 * Options are output in two groups -- those that fit in a column and 872 * those that don't. Output is done on 6 character "tab" boundaries 873 * for no particular reason. (Since we don't output tab characters, 874 * we can ignore the terminal's tab settings.) Ignore the user's tab 875 * setting because we have no idea how reasonable it is. 876 * 877 * Find a column width we can live with, testing from 10 columns to 1. 878 */ 879 for (numcols = 10; numcols > 1; --numcols) { 880 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1); 881 if (colwidth >= 10) { 882 colwidth = 883 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1); 884 numcols = sp->cols / colwidth; 885 break; 886 } 887 colwidth = 0; 888 } 889 890 /* 891 * Get the set of options to list, entering them into 892 * the column list or the overflow list. 893 */ 894 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) { 895 cnt = op - optlist; 896 897 /* If OPT_NDISP set, it's never displayed. */ 898 if (F_ISSET(op, OPT_NDISP)) 899 continue; 900 901 switch (type) { 902 case ALL_DISPLAY: /* Display all. */ 903 break; 904 case CHANGED_DISPLAY: /* Display changed. */ 905 /* If OPT_ADISP set, it's always "changed". */ 906 if (F_ISSET(op, OPT_ADISP)) 907 break; 908 switch (op->type) { 909 case OPT_0BOOL: 910 case OPT_1BOOL: 911 case OPT_NUM: 912 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt)) 913 continue; 914 break; 915 case OPT_STR: 916 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) || 917 (O_D_STR(sp, cnt) != NULL && 918 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt)))) 919 continue; 920 break; 921 } 922 break; 923 case SELECT_DISPLAY: /* Display selected. */ 924 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED)) 925 continue; 926 break; 927 default: 928 case NO_DISPLAY: 929 abort(); 930 } 931 F_CLR(&sp->opts[cnt], OPT_SELECTED); 932 933 curlen = STRLEN(op->name); 934 switch (op->type) { 935 case OPT_0BOOL: 936 case OPT_1BOOL: 937 if (!O_ISSET(sp, cnt)) 938 curlen += 2; 939 break; 940 case OPT_NUM: 941 (void)snprintf(nbuf, 942 sizeof(nbuf), "%ld", O_VAL(sp, cnt)); 943 curlen += strlen(nbuf); 944 break; 945 case OPT_STR: 946 if (O_STR(sp, cnt) != NULL) 947 curlen += strlen(O_STR(sp, cnt)); 948 curlen += 3; 949 break; 950 } 951 /* Offset by 2 so there's a gap. */ 952 if (curlen <= colwidth - 2) 953 s_op[s_num++] = cnt; 954 else 955 b_op[b_num++] = cnt; 956 } 957 958 if (s_num > 0) { 959 /* Figure out the number of rows. */ 960 if (s_num > numcols) { 961 numrows = s_num / numcols; 962 if (s_num % numcols) 963 ++numrows; 964 } else 965 numrows = 1; 966 967 /* Display the options in sorted order. */ 968 for (row = 0; row < numrows;) { 969 for (base = row, col = 0; col < numcols; ++col) { 970 cnt = opts_print(sp, &optlist[s_op[base]]); 971 if ((base += numrows) >= s_num) 972 break; 973 (void)ex_printf(sp, "%*s", 974 (int)(colwidth - cnt), ""); 975 } 976 if (++row < numrows || b_num) 977 (void)ex_puts(sp, "\n"); 978 } 979 } 980 981 for (row = 0; row < b_num;) { 982 (void)opts_print(sp, &optlist[b_op[row]]); 983 if (++row < b_num) 984 (void)ex_puts(sp, "\n"); 985 } 986 (void)ex_puts(sp, "\n"); 987 } 988 989 /* 990 * opts_print -- 991 * Print out an option. 992 */ 993 static int 994 opts_print(SCR *sp, const OPTLIST *op) 995 { 996 int curlen, offset; 997 998 curlen = 0; 999 offset = op - optlist; 1000 switch (op->type) { 1001 case OPT_0BOOL: 1002 case OPT_1BOOL: 1003 curlen += ex_printf(sp, 1004 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name); 1005 break; 1006 case OPT_NUM: 1007 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset)); 1008 break; 1009 case OPT_STR: 1010 curlen += ex_printf(sp, WS"=\"%s\"", op->name, 1011 O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset)); 1012 break; 1013 } 1014 return (curlen); 1015 } 1016 1017 /* 1018 * opts_save -- 1019 * Write the current configuration to a file. 1020 * 1021 * PUBLIC: int opts_save __P((SCR *, FILE *)); 1022 */ 1023 int 1024 opts_save(SCR *sp, FILE *fp) 1025 { 1026 OPTLIST const *op; 1027 CHAR_T ch; 1028 const CHAR_T *p; 1029 char nch; 1030 const char *np; 1031 int cnt; 1032 1033 for (op = optlist; op->name != NULL; ++op) { 1034 if (F_ISSET(op, OPT_NOSAVE)) 1035 continue; 1036 cnt = op - optlist; 1037 switch (op->type) { 1038 case OPT_0BOOL: 1039 case OPT_1BOOL: 1040 if (O_ISSET(sp, cnt)) 1041 (void)fprintf(fp, "set "WS"\n", op->name); 1042 else 1043 (void)fprintf(fp, "set no"WS"\n", op->name); 1044 break; 1045 case OPT_NUM: 1046 (void)fprintf(fp, 1047 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt)); 1048 break; 1049 case OPT_STR: 1050 if (O_STR(sp, cnt) == NULL) 1051 break; 1052 (void)fprintf(fp, "set "); 1053 for (p = op->name; (ch = *p) != L('\0'); ++p) { 1054 if (ISBLANK(ch) || ch == L('\\')) 1055 (void)putc('\\', fp); 1056 fprintf(fp, WC, ch); 1057 } 1058 (void)putc('=', fp); 1059 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) { 1060 if (isblank((unsigned char)nch) || nch == '\\') 1061 (void)putc('\\', fp); 1062 (void)putc(nch, fp); 1063 } 1064 (void)putc('\n', fp); 1065 break; 1066 } 1067 if (ferror(fp)) { 1068 msgq(sp, M_SYSERR, NULL); 1069 return (1); 1070 } 1071 } 1072 return (0); 1073 } 1074 1075 /* 1076 * opts_search -- 1077 * Search for an option. 1078 * 1079 * PUBLIC: OPTLIST const *opts_search __P((const CHAR_T *)); 1080 */ 1081 OPTLIST const * 1082 opts_search(const CHAR_T *name) 1083 { 1084 OPTLIST const *op, *found; 1085 OABBREV atmp, *ap; 1086 OPTLIST otmp; 1087 size_t len; 1088 1089 /* Check list of abbreviations. */ 1090 atmp.name = name; 1091 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1, 1092 sizeof(OABBREV), opts_abbcmp)) != NULL) 1093 return (optlist + ap->offset); 1094 1095 /* Check list of options. */ 1096 otmp.name = name; 1097 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1, 1098 sizeof(OPTLIST), opts_cmp)) != NULL) 1099 return (op); 1100 1101 /* 1102 * Check to see if the name is the prefix of one (and only one) 1103 * option. If so, return the option. 1104 */ 1105 len = STRLEN(name); 1106 for (found = NULL, op = optlist; op->name != NULL; ++op) { 1107 if (op->name[0] < name[0]) 1108 continue; 1109 if (op->name[0] > name[0]) 1110 break; 1111 if (!MEMCMP(op->name, name, len)) { 1112 if (found != NULL) 1113 return (NULL); 1114 found = op; 1115 } 1116 } 1117 return (found); 1118 } 1119 1120 /* 1121 * opts_nomatch -- 1122 * Standard nomatch error message for options. 1123 * 1124 * PUBLIC: void opts_nomatch __P((SCR *, const CHAR_T *)); 1125 */ 1126 void 1127 opts_nomatch(SCR *sp, const CHAR_T *name) 1128 { 1129 msgq_wstr(sp, M_ERR, name, 1130 "033|set: no %s option: 'set all' gives all option values"); 1131 } 1132 1133 static int 1134 opts_abbcmp(const void *a, const void *b) 1135 { 1136 return(STRCMP(((const OABBREV *)a)->name, ((const OABBREV *)b)->name)); 1137 } 1138 1139 static int 1140 opts_cmp(const void *a, const void *b) 1141 { 1142 return(STRCMP(((const OPTLIST *)a)->name, ((const OPTLIST *)b)->name)); 1143 } 1144 1145 /* 1146 * opts_copy -- 1147 * Copy a screen's OPTION array. 1148 * 1149 * PUBLIC: int opts_copy __P((SCR *, SCR *)); 1150 */ 1151 int 1152 opts_copy(SCR *orig, SCR *sp) 1153 { 1154 int cnt, rval; 1155 1156 /* Copy most everything without change. */ 1157 memcpy(sp->opts, orig->opts, sizeof(orig->opts)); 1158 1159 /* Copy the string edit options. */ 1160 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1161 if (optlist[cnt].type != OPT_STR || 1162 F_ISSET(&sp->opts[cnt], OPT_GLOBAL)) 1163 continue; 1164 /* 1165 * If never set, or already failed, NULL out the entries -- 1166 * have to continue after failure, otherwise would have two 1167 * screens referencing the same memory. 1168 */ 1169 if (rval || O_STR(sp, cnt) == NULL) { 1170 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0); 1171 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1172 continue; 1173 } 1174 1175 /* Copy the current string. */ 1176 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) { 1177 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1178 goto nomem; 1179 } 1180 1181 /* Copy the default string. */ 1182 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt, 1183 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) { 1184 nomem: msgq(orig, M_SYSERR, NULL); 1185 rval = 1; 1186 } 1187 } 1188 return (rval); 1189 } 1190 1191 /* 1192 * opts_free -- 1193 * Free all option strings 1194 * 1195 * PUBLIC: void opts_free __P((SCR *)); 1196 */ 1197 void 1198 opts_free(SCR *sp) 1199 { 1200 int cnt; 1201 1202 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1203 if (optlist[cnt].type != OPT_STR || 1204 F_ISSET(&sp->opts[cnt], OPT_GLOBAL)) 1205 continue; 1206 if (O_STR(sp, cnt) != NULL) 1207 free(__UNCONST(O_STR(sp, cnt))); 1208 if (O_D_STR(sp, cnt) != NULL) 1209 free(__UNCONST(O_D_STR(sp, cnt))); 1210 } 1211 } 1212
Indexes created Tue May 19 00:24:48 UTC 2026