1 /* $OpenBSD: captoinfo.c,v 1.17 2023/10/17 09:52:09 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright 2018-2020,2021 Thomas E. Dickey * 5 * Copyright 1998-2016,2017 Free Software Foundation, Inc. * 6 * * 7 * Permission is hereby granted, free of charge, to any person obtaining a * 8 * copy of this software and associated documentation files (the * 9 * "Software"), to deal in the Software without restriction, including * 10 * without limitation the rights to use, copy, modify, merge, publish, * 11 * distribute, distribute with modifications, sublicense, and/or sell * 12 * copies of the Software, and to permit persons to whom the Software is * 13 * furnished to do so, subject to the following conditions: * 14 * * 15 * The above copyright notice and this permission notice shall be included * 16 * in all copies or substantial portions of the Software. * 17 * * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 25 * * 26 * Except as contained in this notice, the name(s) of the above copyright * 27 * holders shall not be used in advertising or otherwise to promote the * 28 * sale, use or other dealings in this Software without prior written * 29 * authorization. * 30 ****************************************************************************/ 31 32 /**************************************************************************** 33 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 34 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 35 * and: Thomas E. Dickey 1996-on * 36 ****************************************************************************/ 37 38 /* 39 * captoinfo.c 40 * 41 * Provide conversion in both directions between termcap and terminfo. 42 * 43 * cap-to-info --- conversion between termcap and terminfo formats 44 * 45 * The captoinfo() code was swiped from Ross Ridge's mytinfo package, 46 * adapted to fit ncurses by Eric S. Raymond <esr@snark.thyrsus.com>. 47 * 48 * It has just one entry point: 49 * 50 * char *_nc_captoinfo(n, s, parameterized) 51 * 52 * Convert value s for termcap string capability named n into terminfo 53 * format. 54 * 55 * This code recognizes all the standard 4.4BSD %-escapes: 56 * 57 * %% output `%' 58 * %d output value as in printf %d 59 * %2 output value as in printf %2d 60 * %3 output value as in printf %3d 61 * %. output value as in printf %c 62 * %+x add x to value, then do %. 63 * %>xy if value > x then add y, no output 64 * %r reverse order of two parameters, no output 65 * %i increment by one, no output 66 * %n exclusive-or all parameters with 0140 (Datamedia 2500) 67 * %B BCD (16*(value/10)) + (value%10), no output 68 * %D Reverse coding (value - 2*(value%16)), no output (Delta Data). 69 * 70 * Also, %02 and %03 are accepted as synonyms for %2 and %3. 71 * 72 * Besides all the standard termcap escapes, this translator understands 73 * the following extended escapes: 74 * 75 * used by GNU Emacs termcap libraries 76 * %a[+*-/=][cp]x GNU arithmetic. 77 * %m xor the first two parameters by 0177 78 * %b backup to previous parameter 79 * %f skip this parameter 80 * 81 * used by the University of Waterloo (MFCF) termcap libraries 82 * %-x subtract parameter FROM char x and output it as a char 83 * %ax add the character x to parameter 84 * 85 * If #define WATERLOO is on, also enable these translations: 86 * 87 * %sx subtract parameter FROM the character x 88 * 89 * By default, this Waterloo translations are not compiled in, because 90 * the Waterloo %s conflicts with the way terminfo uses %s in strings for 91 * function programming. 92 * 93 * Note the two definitions of %a: the GNU definition is translated if the 94 * characters after the 'a' are valid for it, otherwise the UW definition 95 * is translated. 96 */ 97 98 #include <curses.priv.h> 99 100 #include <ctype.h> 101 #include <tic.h> 102 103 MODULE_ID("$Id: captoinfo.c,v 1.17 2023/10/17 09:52:09 nicm Exp $") 104 105 #if 0 106 #define DEBUG_THIS(p) DEBUG(9, p) 107 #else 108 #define DEBUG_THIS(p) /* nothing */ 109 #endif 110 111 #define MAX_PUSHED 16 /* max # args we can push onto the stack */ 112 113 static int stack[MAX_PUSHED]; /* the stack */ 114 static int stackptr; /* the next empty place on the stack */ 115 static int onstack; /* the top of stack */ 116 static int seenm; /* seen a %m */ 117 static int seenn; /* seen a %n */ 118 static int seenr; /* seen a %r */ 119 static int param; /* current parameter */ 120 static char *dp; /* pointer to end of the converted string */ 121 122 static char *my_string; 123 static size_t my_length; 124 125 static char * 126 init_string(void) 127 /* initialize 'my_string', 'my_length' */ 128 { 129 if (my_string == 0) 130 TYPE_MALLOC(char, my_length = 256, my_string); 131 132 *my_string = '\0'; 133 return my_string; 134 } 135 136 static char * 137 save_string(char *d, const char *const s) 138 { 139 size_t have = (size_t) (d - my_string); 140 size_t need = have + strlen(s) + 2; 141 if (need > my_length) { 142 my_string = (char *) _nc_doalloc(my_string, my_length = (need + need)); 143 if (my_string == 0) 144 _nc_err_abort(MSG_NO_MEMORY); 145 d = my_string + have; 146 } 147 _nc_STRCPY(d, s, my_length - have); 148 return d + strlen(d); 149 } 150 151 static NCURSES_INLINE char * 152 save_char(char *s, int c) 153 { 154 static char temp[2]; 155 temp[0] = (char) c; 156 return save_string(s, temp); 157 } 158 159 static void 160 push(void) 161 /* push onstack on to the stack */ 162 { 163 if (stackptr >= MAX_PUSHED) 164 _nc_warning("string too complex to convert"); 165 else 166 stack[stackptr++] = onstack; 167 } 168 169 static void 170 pop(void) 171 /* pop the top of the stack into onstack */ 172 { 173 if (stackptr == 0) { 174 if (onstack == 0) 175 _nc_warning("I'm confused"); 176 else 177 onstack = 0; 178 } else 179 onstack = stack[--stackptr]; 180 param++; 181 } 182 183 static int 184 cvtchar(register const char *sp) 185 /* convert a character to a terminfo push */ 186 { 187 unsigned char c = 0; 188 int len; 189 190 switch (*sp) { 191 case '\\': 192 switch (*++sp) { 193 case '\'': 194 case '$': 195 case '\\': 196 case '%': 197 c = UChar(*sp); 198 len = 2; 199 break; 200 case '\0': 201 c = '\\'; 202 len = 1; 203 break; 204 case '0': 205 case '1': 206 case '2': 207 case '3': 208 len = 1; 209 while (isdigit(UChar(*sp))) { 210 c = UChar(8 * c + (*sp++ - '0')); 211 len++; 212 } 213 break; 214 default: 215 c = UChar(*sp); 216 len = (c != '\0') ? 2 : 1; 217 break; 218 } 219 break; 220 case '^': 221 len = 2; 222 c = UChar(*++sp); 223 if (c == '?') { 224 c = 127; 225 } else if (c == '\0') { 226 len = 1; 227 } else { 228 c &= 0x1f; 229 } 230 break; 231 default: 232 c = UChar(*sp); 233 len = (c != '\0') ? 1 : 0; 234 } 235 if (isgraph(c) && c != ',' && c != '\'' && c != '\\' && c != ':') { 236 dp = save_string(dp, "%\'"); 237 dp = save_char(dp, c); 238 dp = save_char(dp, '\''); 239 } else if (c != '\0') { 240 dp = save_string(dp, "%{"); 241 if (c > 99) 242 dp = save_char(dp, c / 100 + '0'); 243 if (c > 9) 244 dp = save_char(dp, ((int) (c / 10)) % 10 + '0'); 245 dp = save_char(dp, c % 10 + '0'); 246 dp = save_char(dp, '}'); 247 } 248 return len; 249 } 250 251 static void 252 getparm(int parm, int n) 253 /* push n copies of param on the terminfo stack if not already there */ 254 { 255 int nn; 256 257 if (seenr) { 258 if (parm == 1) 259 parm = 2; 260 else if (parm == 2) 261 parm = 1; 262 } 263 264 for (nn = 0; nn < n; ++nn) { 265 dp = save_string(dp, "%p"); 266 dp = save_char(dp, '0' + parm); 267 } 268 269 if (onstack == parm) { 270 if (n > 1) { 271 _nc_warning("string may not be optimal"); 272 dp = save_string(dp, "%Pa"); 273 while (n-- > 0) { 274 dp = save_string(dp, "%ga"); 275 } 276 } 277 return; 278 } 279 if (onstack != 0) 280 push(); 281 282 onstack = parm; 283 284 if (seenn && parm < 3) { 285 dp = save_string(dp, "%{96}%^"); 286 } 287 288 if (seenm && parm < 3) { 289 dp = save_string(dp, "%{127}%^"); 290 } 291 } 292 293 /* 294 * Convert a termcap string to terminfo format. 295 * 'cap' is the relevant terminfo capability index. 296 * 's' is the string value of the capability. 297 * 'parameterized' tells what type of translations to do: 298 * % translations if 1 299 * pad translations if >=0 300 */ 301 NCURSES_EXPORT(char *) 302 _nc_captoinfo(const char *cap, const char *s, int const parameterized) 303 { 304 const char *capstart; 305 306 stackptr = 0; 307 onstack = 0; 308 seenm = 0; 309 seenn = 0; 310 seenr = 0; 311 param = 1; 312 313 DEBUG_THIS(("_nc_captoinfo params %d, %s", parameterized, s)); 314 315 dp = init_string(); 316 317 /* skip the initial padding (if we haven't been told not to) */ 318 capstart = 0; 319 if (s == 0) 320 s = ""; 321 if (parameterized >= 0 && isdigit(UChar(*s))) 322 for (capstart = s; *s != '\0'; s++) 323 if (!(isdigit(UChar(*s)) || *s == '*' || *s == '.')) 324 break; 325 326 while (*s != '\0') { 327 switch (*s) { 328 case '%': 329 s++; 330 if (parameterized < 1) { 331 dp = save_char(dp, '%'); 332 break; 333 } 334 switch (*s++) { 335 case '%': 336 dp = save_string(dp, "%%"); 337 break; 338 case 'r': 339 if (seenr++ == 1) { 340 _nc_warning("saw %%r twice in %s", cap); 341 } 342 break; 343 case 'm': 344 if (seenm++ == 1) { 345 _nc_warning("saw %%m twice in %s", cap); 346 } 347 break; 348 case 'n': 349 if (seenn++ == 1) { 350 _nc_warning("saw %%n twice in %s", cap); 351 } 352 break; 353 case 'i': 354 dp = save_string(dp, "%i"); 355 break; 356 case '6': 357 case 'B': 358 getparm(param, 1); 359 dp = save_string(dp, "%{10}%/%{16}%*"); 360 getparm(param, 1); 361 dp = save_string(dp, "%{10}%m%+"); 362 break; 363 case '8': 364 case 'D': 365 getparm(param, 2); 366 dp = save_string(dp, "%{2}%*%-"); 367 break; 368 case '>': 369 /* %?%{x}%>%t%{y}%+%; */ 370 if (s[0] && s[1]) { 371 getparm(param, 2); 372 dp = save_string(dp, "%?"); 373 s += cvtchar(s); 374 dp = save_string(dp, "%>%t"); 375 s += cvtchar(s); 376 dp = save_string(dp, "%+%;"); 377 } else { 378 _nc_warning("expected two characters after %%>"); 379 dp = save_string(dp, "%>"); 380 } 381 break; 382 case 'a': 383 if ((*s == '=' || *s == '+' || *s == '-' 384 || *s == '*' || *s == '/') 385 && (s[1] == 'p' || s[1] == 'c') 386 && s[2] != '\0') { 387 int l; 388 l = 2; 389 if (*s != '=') 390 getparm(param, 1); 391 if (s[1] == 'p') { 392 getparm(param + s[2] - '@', 1); 393 if (param != onstack) { 394 pop(); 395 param--; 396 } 397 l++; 398 } else 399 l += cvtchar(s + 2); 400 switch (*s) { 401 case '+': 402 dp = save_string(dp, "%+"); 403 break; 404 case '-': 405 dp = save_string(dp, "%-"); 406 break; 407 case '*': 408 dp = save_string(dp, "%*"); 409 break; 410 case '/': 411 dp = save_string(dp, "%/"); 412 break; 413 case '=': 414 if (seenr) { 415 if (param == 1) 416 onstack = 2; 417 else if (param == 2) 418 onstack = 1; 419 else 420 onstack = param; 421 } else 422 onstack = param; 423 break; 424 } 425 s += l; 426 break; 427 } 428 getparm(param, 1); 429 s += cvtchar(s); 430 dp = save_string(dp, "%+"); 431 break; 432 case '+': 433 getparm(param, 1); 434 s += cvtchar(s); 435 dp = save_string(dp, "%+%c"); 436 pop(); 437 break; 438 case 's': 439 #ifdef WATERLOO 440 s += cvtchar(s); 441 getparm(param, 1); 442 dp = save_string(dp, "%-"); 443 #else 444 getparm(param, 1); 445 dp = save_string(dp, "%s"); 446 pop(); 447 #endif /* WATERLOO */ 448 break; 449 case '-': 450 s += cvtchar(s); 451 getparm(param, 1); 452 dp = save_string(dp, "%-%c"); 453 pop(); 454 break; 455 case '.': 456 getparm(param, 1); 457 dp = save_string(dp, "%c"); 458 pop(); 459 break; 460 case '0': /* not clear any of the historical termcaps did this */ 461 if (*s == '3') { 462 ++s; 463 goto see03; 464 } 465 if (*s == '2') { 466 ++s; 467 goto see02; 468 } 469 goto invalid; 470 case '2': 471 see02: 472 getparm(param, 1); 473 dp = save_string(dp, "%2d"); 474 pop(); 475 break; 476 case '3': 477 see03: 478 getparm(param, 1); 479 dp = save_string(dp, "%3d"); 480 pop(); 481 break; 482 case 'd': 483 getparm(param, 1); 484 dp = save_string(dp, "%d"); 485 pop(); 486 break; 487 case 'f': 488 param++; 489 break; 490 case 'b': 491 param--; 492 break; 493 case '\\': 494 dp = save_string(dp, "%\\"); 495 break; 496 default: 497 invalid: 498 dp = save_char(dp, '%'); 499 s--; 500 _nc_warning("unknown %% code %s (%#x) in %s", 501 unctrl((chtype) *s), UChar(*s), cap); 502 break; 503 } 504 break; 505 default: 506 if (*s != '\0') 507 dp = save_char(dp, *s++); 508 break; 509 } 510 } 511 512 /* 513 * Now, if we stripped off some leading padding, add it at the end 514 * of the string as mandatory padding. 515 */ 516 if (capstart) { 517 dp = save_string(dp, "$<"); 518 for (s = capstart; *s != '\0'; s++) 519 if (isdigit(UChar(*s)) || *s == '*' || *s == '.') 520 dp = save_char(dp, *s); 521 else 522 break; 523 dp = save_string(dp, "/>"); 524 } 525 526 (void) save_char(dp, '\0'); 527 528 DEBUG_THIS(("... _nc_captoinfo %s", NonNull(my_string))); 529 530 return (my_string); 531 } 532 533 /* 534 * Check for an expression that corresponds to "%B" (BCD): 535 * (parameter / 10) * 16 + (parameter % 10) 536 */ 537 static int 538 bcd_expression(const char *str) 539 { 540 /* leave this non-const for HPUX */ 541 static char fmt[] = "%%p%c%%{10}%%/%%{16}%%*%%p%c%%{10}%%m%%+"; 542 int len = 0; 543 char ch1, ch2; 544 545 if (sscanf(str, fmt, &ch1, &ch2) == 2 546 && isdigit(UChar(ch1)) 547 && isdigit(UChar(ch2)) 548 && (ch1 == ch2)) { 549 len = 28; 550 #ifndef NDEBUG 551 { 552 char buffer[80]; 553 int tst; 554 _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer)) fmt, ch1, ch2); 555 tst = strlen(buffer) - 1; 556 assert(len == tst); 557 } 558 #endif 559 } 560 return len; 561 } 562 563 static char * 564 save_tc_char(char *bufptr, int c1) 565 { 566 if (is7bits(c1) && isprint(c1)) { 567 if (c1 == ':' || c1 == '\\') 568 bufptr = save_char(bufptr, '\\'); 569 bufptr = save_char(bufptr, c1); 570 } else { 571 char temp[80]; 572 573 if (c1 == (c1 & 0x1f)) { /* iscntrl() returns T on 255 */ 574 _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) 575 "%.20s", unctrl((chtype) c1)); 576 } else { 577 _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) 578 "\\%03o", c1); 579 } 580 bufptr = save_string(bufptr, temp); 581 } 582 return bufptr; 583 } 584 585 static char * 586 save_tc_inequality(char *bufptr, int c1, int c2) 587 { 588 bufptr = save_string(bufptr, "%>"); 589 bufptr = save_tc_char(bufptr, c1); 590 bufptr = save_tc_char(bufptr, c2); 591 return bufptr; 592 } 593 594 /* 595 * info-to-cap --- conversion between terminfo and termcap formats 596 * 597 * Here are the capabilities infotocap assumes it can translate to: 598 * 599 * %% output `%' 600 * %d output value as in printf %d 601 * %2 output value as in printf %2d 602 * %3 output value as in printf %3d 603 * %. output value as in printf %c 604 * %+c add character c to value, then do %. 605 * %>xy if value > x then add y, no output 606 * %r reverse order of two parameters, no output 607 * %i increment by one, no output 608 * %n exclusive-or all parameters with 0140 (Datamedia 2500) 609 * %B BCD (16*(value/10)) + (value%10), no output 610 * %D Reverse coding (value - 2*(value%16)), no output (Delta Data). 611 * %m exclusive-or all parameters with 0177 (not in 4.4BSD) 612 */ 613 614 #define octal_fixup(n, c) fixups[n].ch = ((fixups[n].ch << 3) | ((c) - '0')) 615 616 /* 617 * Convert a terminfo string to termcap format. Parameters are as in 618 * _nc_captoinfo(). 619 */ 620 NCURSES_EXPORT(char *) 621 _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parameterized) 622 { 623 int seenone = 0, seentwo = 0, saw_m = 0, saw_n = 0; 624 const char *padding; 625 const char *trimmed = 0; 626 int in0, in1, in2; 627 char ch1 = 0, ch2 = 0; 628 char *bufptr = init_string(); 629 char octal[4]; 630 int len; 631 int digits; 632 bool syntax_error = FALSE; 633 int myfix = 0; 634 struct { 635 int ch; 636 int offset; 637 } fixups[MAX_TC_FIXUPS]; 638 639 DEBUG_THIS(("_nc_infotocap %s params %d, %s", 640 _nc_strict_bsd ? "strict" : "loose", 641 parameterized, 642 _nc_visbuf(str))); 643 644 /* we may have to move some trailing mandatory padding up front */ 645 padding = str + strlen(str) - 1; 646 if (padding > str && *padding == '>') { 647 if (padding > (str + 1) && *--padding == '/') 648 --padding; 649 while (isdigit(UChar(*padding)) || *padding == '.' || *padding == '*') 650 padding--; 651 if (padding > str && *padding == '<' && *--padding == '$') 652 trimmed = padding; 653 padding += 2; 654 655 while (isdigit(UChar(*padding)) || *padding == '.' || *padding == '*') 656 bufptr = save_char(bufptr, *padding++); 657 } 658 659 for (; !syntax_error && 660 *str && 661 ((trimmed == 0) || (str < trimmed)); str++) { 662 int c1, c2; 663 char *cp = 0; 664 665 if (str[0] == '^') { 666 if (str[1] == '\0' || (str + 1) == trimmed) { 667 bufptr = save_string(bufptr, "\\136"); 668 ++str; 669 } else if (str[1] == '?') { 670 /* 671 * Although the 4.3BSD termcap file has an instance of "kb=^?", 672 * that appears to be just cut/paste since neither 4.3BSD nor 673 * 4.4BSD termcap interprets "^?" as DEL. 674 */ 675 bufptr = save_string(bufptr, "\\177"); 676 ++str; 677 } else { 678 bufptr = save_char(bufptr, *str++); 679 bufptr = save_char(bufptr, *str); 680 } 681 } else if (str[0] == ':') { 682 bufptr = save_char(bufptr, '\\'); 683 bufptr = save_char(bufptr, '0'); 684 bufptr = save_char(bufptr, '7'); 685 bufptr = save_char(bufptr, '2'); 686 } else if (str[0] == '\\') { 687 if (str[1] == '\0' || (str + 1) == trimmed) { 688 bufptr = save_string(bufptr, "\\134"); 689 ++str; 690 } else if (str[1] == '^') { 691 bufptr = save_string(bufptr, "\\136"); 692 ++str; 693 } else if (str[1] == ',') { 694 bufptr = save_char(bufptr, *++str); 695 } else { 696 int xx1; 697 698 bufptr = save_char(bufptr, *str++); 699 xx1 = *str; 700 if (_nc_strict_bsd) { 701 702 if (isoctal(UChar(xx1))) { 703 int pad = 0; 704 int xx2; 705 int fix = 0; 706 707 if (!isoctal(UChar(str[1]))) 708 pad = 2; 709 else if (str[1] && !isoctal(UChar(str[2]))) 710 pad = 1; 711 712 /* 713 * Test for "\0", "\00" or "\000" and transform those 714 * into "\200". 715 */ 716 if (xx1 == '0' 717 && ((pad == 2) || (str[1] == '0')) 718 && ((pad >= 1) || (str[2] == '0'))) { 719 xx2 = '2'; 720 } else { 721 xx2 = '0'; 722 pad = 0; /* FIXME - optionally pad to 3 digits */ 723 } 724 if (myfix < MAX_TC_FIXUPS) { 725 fix = 3 - pad; 726 fixups[myfix].ch = 0; 727 fixups[myfix].offset = (int) (bufptr 728 - my_string 729 - 1); 730 } 731 while (pad-- > 0) { 732 bufptr = save_char(bufptr, xx2); 733 if (myfix < MAX_TC_FIXUPS) { 734 fixups[myfix].ch <<= 3; 735 fixups[myfix].ch |= (xx2 - '0'); 736 } 737 xx2 = '0'; 738 } 739 if (myfix < MAX_TC_FIXUPS) { 740 int n; 741 for (n = 0; n < fix; ++n) { 742 fixups[myfix].ch <<= 3; 743 fixups[myfix].ch |= (str[n] - '0'); 744 } 745 if (fixups[myfix].ch < 32) { 746 ++myfix; 747 } 748 } 749 } else if (strchr("E\\nrtbf", xx1) == 0) { 750 switch (xx1) { 751 case 'e': 752 xx1 = 'E'; 753 break; 754 case 'l': 755 xx1 = 'n'; 756 break; 757 case 's': 758 bufptr = save_char(bufptr, '0'); 759 bufptr = save_char(bufptr, '4'); 760 xx1 = '0'; 761 break; 762 case ':': 763 /* 764 * Note: termcap documentation claims that ":" 765 * must be escaped as "\072", however the 766 * documentation is incorrect - read the code. 767 * The replacement does not work reliably, 768 * so the advice is not helpful. 769 */ 770 bufptr = save_char(bufptr, '0'); 771 bufptr = save_char(bufptr, '7'); 772 xx1 = '2'; 773 break; 774 default: 775 /* should not happen, but handle this anyway */ 776 _nc_SPRINTF(octal, _nc_SLIMIT(sizeof(octal)) 777 "%03o", UChar(xx1)); 778 bufptr = save_char(bufptr, octal[0]); 779 bufptr = save_char(bufptr, octal[1]); 780 xx1 = octal[2]; 781 break; 782 } 783 } 784 } else { 785 if (myfix < MAX_TC_FIXUPS && isoctal(UChar(xx1))) { 786 bool will_fix = TRUE; 787 int n; 788 789 fixups[myfix].ch = 0; 790 fixups[myfix].offset = (int) (bufptr - my_string - 1); 791 for (n = 0; n < 3; ++n) { 792 if (isoctal(str[n])) { 793 octal_fixup(myfix, str[n]); 794 } else { 795 will_fix = FALSE; 796 break; 797 } 798 } 799 if (will_fix && (fixups[myfix].ch < 32)) 800 ++myfix; 801 } 802 } 803 bufptr = save_char(bufptr, xx1); 804 } 805 } else if (str[0] == '$' && str[1] == '<') { /* discard padding */ 806 str += 2; 807 while (isdigit(UChar(*str)) 808 || *str == '.' 809 || *str == '*' 810 || *str == '/' 811 || *str == '>') 812 str++; 813 --str; 814 } else if (sscanf(str, 815 "[%%?%%p1%%{8}%%<%%t%d%%p1%%d%%e%%p1%%{16}%%<%%t%d%%p1%%{8}%%-%%d%%e%d;5;%%p1%%d%%;m", 816 &in0, &in1, &in2) == 3 817 && ((in0 == 4 && in1 == 10 && in2 == 48) 818 || (in0 == 3 && in1 == 9 && in2 == 38))) { 819 /* dumb-down an optimized case from xterm-256color for termcap */ 820 if ((str = strstr(str, ";m")) == 0) 821 break; /* cannot happen */ 822 ++str; 823 if (in2 == 48) { 824 bufptr = save_string(bufptr, "[48;5;%dm"); 825 } else { 826 bufptr = save_string(bufptr, "[38;5;%dm"); 827 } 828 } else if (str[0] == '%' && str[1] == '%') { /* escaped '%' */ 829 bufptr = save_string(bufptr, "%%"); 830 ++str; 831 } else if (*str != '%' || (parameterized < 1)) { 832 bufptr = save_char(bufptr, *str); 833 } else if (sscanf(str, "%%?%%{%d}%%>%%t%%{%d}%%+%%;", &c1, &c2) == 2) { 834 str = strchr(str, ';'); 835 bufptr = save_tc_inequality(bufptr, c1, c2); 836 } else if (sscanf(str, "%%?%%{%d}%%>%%t%%'%c'%%+%%;", &c1, &ch2) == 2) { 837 str = strchr(str, ';'); 838 bufptr = save_tc_inequality(bufptr, c1, ch2); 839 } else if (sscanf(str, "%%?%%'%c'%%>%%t%%{%d}%%+%%;", &ch1, &c2) == 2) { 840 str = strchr(str, ';'); 841 bufptr = save_tc_inequality(bufptr, ch1, c2); 842 } else if (sscanf(str, "%%?%%'%c'%%>%%t%%'%c'%%+%%;", &ch1, &ch2) == 2) { 843 str = strchr(str, ';'); 844 bufptr = save_tc_inequality(bufptr, ch1, ch2); 845 } else if ((len = bcd_expression(str)) != 0) { 846 str += len; 847 bufptr = save_string(bufptr, "%B"); 848 } else if ((sscanf(str, "%%{%d}%%+%%%c", &c1, &ch2) == 2 849 || sscanf(str, "%%'%c'%%+%%%c", &ch1, &ch2) == 2) 850 && ch2 == 'c' 851 && (cp = strchr(str, '+'))) { 852 str = cp + 2; 853 bufptr = save_string(bufptr, "%+"); 854 855 if (ch1) 856 c1 = ch1; 857 bufptr = save_tc_char(bufptr, c1); 858 } 859 /* FIXME: this "works" for 'delta' */ 860 else if (strncmp(str, "%{2}%*%-", (size_t) 8) == 0) { 861 str += 7; 862 bufptr = save_string(bufptr, "%D"); 863 } else if (strncmp(str, "%{96}%^", (size_t) 7) == 0) { 864 str += 6; 865 if (saw_m++ == 0) { 866 bufptr = save_string(bufptr, "%n"); 867 } 868 } else if (strncmp(str, "%{127}%^", (size_t) 8) == 0) { 869 str += 7; 870 if (saw_n++ == 0) { 871 bufptr = save_string(bufptr, "%m"); 872 } 873 } else { /* cm-style format element */ 874 str++; 875 switch (*str) { 876 case '%': 877 bufptr = save_char(bufptr, '%'); 878 break; 879 880 case '0': 881 case '1': 882 case '2': 883 case '3': 884 case '4': 885 case '5': 886 case '6': 887 case '7': 888 case '8': 889 case '9': 890 bufptr = save_char(bufptr, '%'); 891 ch1 = 0; 892 ch2 = 0; 893 digits = 0; 894 while (isdigit(UChar(*str))) { 895 if (++digits > 2) { 896 syntax_error = TRUE; 897 break; 898 } 899 ch2 = ch1; 900 ch1 = *str++; 901 if (digits == 2 && ch2 != '0') { 902 syntax_error = TRUE; 903 break; 904 } else if (_nc_strict_bsd) { 905 if (ch1 > '3') { 906 syntax_error = TRUE; 907 break; 908 } 909 } else { 910 bufptr = save_char(bufptr, ch1); 911 } 912 } 913 if (syntax_error) 914 break; 915 /* 916 * Convert %02 to %2 and %03 to %3 917 */ 918 if (ch2 == '0' && !_nc_strict_bsd) { 919 ch2 = 0; 920 bufptr[-2] = bufptr[-1]; 921 *--bufptr = 0; 922 } 923 if (_nc_strict_bsd) { 924 if (ch2 != 0 && ch2 != '0') { 925 syntax_error = TRUE; 926 } else if (ch1 < '2') { 927 ch1 = 'd'; 928 } 929 bufptr = save_char(bufptr, ch1); 930 } 931 if (strchr("oxX.", *str)) { 932 syntax_error = TRUE; /* termcap doesn't have octal, hex */ 933 } 934 break; 935 936 case 'd': 937 bufptr = save_string(bufptr, "%d"); 938 break; 939 940 case 'c': 941 bufptr = save_string(bufptr, "%."); 942 break; 943 944 /* 945 * %s isn't in termcap, but it is convenient to pass it through 946 * so we can represent things like terminfo pfkey strings in 947 * termcap notation. 948 */ 949 case 's': 950 if (_nc_strict_bsd) { 951 syntax_error = TRUE; 952 } else { 953 bufptr = save_string(bufptr, "%s"); 954 } 955 break; 956 957 case 'p': 958 str++; 959 if (*str == '1') 960 seenone = 1; 961 else if (*str == '2') { 962 if (!seenone && !seentwo) { 963 bufptr = save_string(bufptr, "%r"); 964 seentwo++; 965 } 966 } else if (*str >= '3') { 967 syntax_error = TRUE; 968 } 969 break; 970 971 case 'i': 972 bufptr = save_string(bufptr, "%i"); 973 break; 974 975 default: 976 bufptr = save_char(bufptr, *str); 977 syntax_error = TRUE; 978 break; 979 } /* endswitch (*str) */ 980 } /* endelse (*str == '%') */ 981 982 /* 983 * 'str' always points to the end of what was scanned in this step, 984 * but that may not be the end of the string. 985 */ 986 assert(str != 0); 987 if (str == 0 || *str == '\0') 988 break; 989 990 } /* endwhile (*str) */ 991 992 if (!syntax_error && 993 myfix > 0 && 994 ((int) strlen(my_string) - (4 * myfix)) < MIN_TC_FIXUPS) { 995 while (--myfix >= 0) { 996 char *p = fixups[myfix].offset + my_string; 997 *p++ = '^'; 998 *p++ = (char) (fixups[myfix].ch | '@'); 999 while ((p[0] = p[2]) != '\0') { 1000 ++p; 1001 } 1002 } 1003 } 1004 1005 DEBUG_THIS(("... _nc_infotocap %s", 1006 syntax_error 1007 ? "<ERR>" 1008 : _nc_visbuf(my_string))); 1009 1010 return (syntax_error ? NULL : my_string); 1011 } 1012 1013 #ifdef MAIN 1014 1015 int curr_line; 1016 1017 int 1018 main(int argc, char *argv[]) 1019 { 1020 int c, tc = FALSE; 1021 1022 while ((c = getopt(argc, argv, "c")) != EOF) 1023 switch (c) { 1024 case 'c': 1025 tc = TRUE; 1026 break; 1027 } 1028 1029 curr_line = 0; 1030 for (;;) { 1031 char buf[BUFSIZ]; 1032 1033 ++curr_line; 1034 if (fgets(buf, sizeof(buf), stdin) == 0) 1035 break; 1036 buf[strlen(buf) - 1] = '\0'; 1037 _nc_set_source(buf); 1038 1039 if (tc) { 1040 char *cp = _nc_infotocap("to termcap", buf, 1); 1041 1042 if (cp) 1043 (void) fputs(cp, stdout); 1044 } else 1045 (void) fputs(_nc_captoinfo("to terminfo", buf, 1), stdout); 1046 (void) putchar('\n'); 1047 } 1048 return (0); 1049 } 1050 #endif /* MAIN */ 1051 1052 #if NO_LEAKS 1053 NCURSES_EXPORT(void) 1054 _nc_captoinfo_leaks(void) 1055 { 1056 if (my_string != 0) { 1057 FreeAndNull(my_string); 1058 } 1059 my_length = 0; 1060 } 1061 #endif 1062