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 30static int opts_abbcmp(const void *, const void *); 31static int opts_cmp(const void *, const void *); 32static 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 */ 48OPTLIST 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 246typedef struct abbrev { 247 CHAR_T *name; 248 int offset; 249} OABBREV; 250 251static 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 */ 301int 302opts_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 454err: 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 */ 465int 466opts_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)) { 649badnum: 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 */ 757int 758o_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 */ 796int 797opts_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 */ 816void 817opts_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 */ 948static int 949opts_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 */ 984int 985opts_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 */ 1040OPTLIST const * 1041opts_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 */ 1085void 1086opts_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 1092static int 1093opts_abbcmp(const void *a, const void *b) 1094{ 1095 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name)); 1096} 1097 1098static int 1099opts_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 */ 1110int 1111opts_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)) { 1143nomem: 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 */ 1156void 1157opts_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