1 /**************************************************************************** 2 * Copyright 2018-2019,2020 Thomas E. Dickey * 3 * Copyright 1998-2016,2017 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 32 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 33 * and: Thomas E. Dickey 1996-on * 34 ****************************************************************************/ 35 36 /* 37 * captoinfo.c 38 * 39 * Provide conversion in both directions between termcap and terminfo. 40 * 41 * cap-to-info --- conversion between termcap and terminfo formats 42 * 43 * The captoinfo() code was swiped from Ross Ridge's mytinfo package, 44 * adapted to fit ncurses by Eric S. Raymond <esr@snark.thyrsus.com>. 45 * 46 * It has just one entry point: 47 * 48 * char *_nc_captoinfo(n, s, parameterized) 49 * 50 * Convert value s for termcap string capability named n into terminfo 51 * format. 52 * 53 * This code recognizes all the standard 4.4BSD %-escapes: 54 * 55 * %% output `%' 56 * %d output value as in printf %d 57 * %2 output value as in printf %2d 58 * %3 output value as in printf %3d 59 * %. output value as in printf %c 60 * %+x add x to value, then do %. 61 * %>xy if value > x then add y, no output 62 * %r reverse order of two parameters, no output 63 * %i increment by one, no output 64 * %n exclusive-or all parameters with 0140 (Datamedia 2500) 65 * %B BCD (16*(value/10)) + (value%10), no output 66 * %D Reverse coding (value - 2*(value%16)), no output (Delta Data). 67 * 68 * Also, %02 and %03 are accepted as synonyms for %2 and %3. 69 * 70 * Besides all the standard termcap escapes, this translator understands 71 * the following extended escapes: 72 * 73 * used by GNU Emacs termcap libraries 74 * %a[+*-/=][cp]x GNU arithmetic. 75 * %m xor the first two parameters by 0177 76 * %b backup to previous parameter 77 * %f skip this parameter 78 * 79 * used by the University of Waterloo (MFCF) termcap libraries 80 * %-x subtract parameter FROM char x and output it as a char 81 * %ax add the character x to parameter 82 * 83 * If #define WATERLOO is on, also enable these translations: 84 * 85 * %sx subtract parameter FROM the character x 86 * 87 * By default, this Waterloo translations are not compiled in, because 88 * the Waterloo %s conflicts with the way terminfo uses %s in strings for 89 * function programming. 90 * 91 * Note the two definitions of %a: the GNU definition is translated if the 92 * characters after the 'a' are valid for it, otherwise the UW definition 93 * is translated. 94 */ 95 96 #include <curses.priv.h> 97 98 #include <ctype.h> 99 #include <tic.h> 100 101 MODULE_ID("$Id: captoinfo.c,v 1.100 2020/07/08 21:39:54 tom Exp $") 102 103 #if 0 104 #define DEBUG_THIS(p) DEBUG(9, p) 105 #else 106 #define DEBUG_THIS(p) /* nothing */ 107 #endif 108 109 #define MAX_PUSHED 16 /* max # args we can push onto the stack */ 110 111 static int stack[MAX_PUSHED]; /* the stack */ 112 static int stackptr; /* the next empty place on the stack */ 113 static int onstack; /* the top of stack */ 114 static int seenm; /* seen a %m */ 115 static int seenn; /* seen a %n */ 116 static int seenr; /* seen a %r */ 117 static int param; /* current parameter */ 118 static char *dp; /* pointer to end of the converted string */ 119 120 static char *my_string; 121 static size_t my_length; 122 123 static char * 124 init_string(void) 125 /* initialize 'my_string', 'my_length' */ 126 { 127 if (my_string == 0) 128 TYPE_MALLOC(char, my_length = 256, my_string); 129 130 *my_string = '\0'; 131 return my_string; 132 } 133 134 static char * 135 save_string(char *d, const char *const s) 136 { 137 size_t have = (size_t) (d - my_string); 138 size_t need = have + strlen(s) + 2; 139 if (need > my_length) { 140 my_string = (char *) _nc_doalloc(my_string, my_length = (need + need)); 141 if (my_string == 0) 142 _nc_err_abort(MSG_NO_MEMORY); 143 d = my_string + have; 144 } 145 _nc_STRCPY(d, s, my_length - have); 146 return d + strlen(d); 147 } 148 149 static NCURSES_INLINE char * 150 save_char(char *s, int c) 151 { 152 static char temp[2]; 153 temp[0] = (char) c; 154 return save_string(s, temp); 155 } 156 157 static void 158 push(void) 159 /* push onstack on to the stack */ 160 { 161 if (stackptr >= MAX_PUSHED) 162 _nc_warning("string too complex to convert"); 163 else 164 stack[stackptr++] = onstack; 165 } 166 167 static void 168 pop(void) 169 /* pop the top of the stack into onstack */ 170 { 171 if (stackptr == 0) { 172 if (onstack == 0) 173 _nc_warning("I'm confused"); 174 else 175 onstack = 0; 176 } else 177 onstack = stack[--stackptr]; 178 param++; 179 } 180 181 static int 182 cvtchar(register const char *sp) 183 /* convert a character to a terminfo push */ 184 { 185 unsigned char c = 0; 186 int len; 187 188 switch (*sp) { 189 case '\\': 190 switch (*++sp) { 191 case '\'': 192 case '$': 193 case '\\': 194 case '%': 195 c = UChar(*sp); 196 len = 2; 197 break; 198 case '\0': 199 c = '\\'; 200 len = 1; 201 break; 202 case '0': 203 case '1': 204 case '2': 205 case '3': 206 len = 1; 207 while (isdigit(UChar(*sp))) { 208 c = UChar(8 * c + (*sp++ - '0')); 209 len++; 210 } 211 break; 212 default: 213 c = UChar(*sp); 214 len = (c != '\0') ? 2 : 1; 215 break; 216 } 217 break; 218 case '^': 219 len = 2; 220 c = UChar(*++sp); 221 if (c == '?') { 222 c = 127; 223 } else if (c == '\0') { 224 len = 1; 225 } else { 226 c &= 0x1f; 227 } 228 break; 229 default: 230 c = UChar(*sp); 231 len = (c != '\0') ? 1 : 0; 232 } 233 if (isgraph(c) && c != ',' && c != '\'' && c != '\\' && c != ':') { 234 dp = save_string(dp, "%\'"); 235 dp = save_char(dp, c); 236 dp = save_char(dp, '\''); 237 } else if (c != '\0') { 238 dp = save_string(dp, "%{"); 239 if (c > 99) 240 dp = save_char(dp, c / 100 + '0'); 241 if (c > 9) 242 dp = save_char(dp, ((int) (c / 10)) % 10 + '0'); 243 dp = save_char(dp, c % 10 + '0'); 244 dp = save_char(dp, '}'); 245 } 246 return len; 247 } 248 249 static void 250 getparm(int parm, int n) 251 /* push n copies of param on the terminfo stack if not already there */ 252 { 253 int nn; 254 255 if (seenr) { 256 if (parm == 1) 257 parm = 2; 258 else if (parm == 2) 259 parm = 1; 260 } 261 262 for (nn = 0; nn < n; ++nn) { 263 dp = save_string(dp, "%p"); 264 dp = save_char(dp, '0' + parm); 265 } 266 267 if (onstack == parm) { 268 if (n > 1) { 269 _nc_warning("string may not be optimal"); 270 dp = save_string(dp, "%Pa"); 271 while (n-- > 0) { 272 dp = save_string(dp, "%ga"); 273 } 274 } 275 return; 276 } 277 if (onstack != 0) 278 push(); 279 280 onstack = parm; 281 282 if (seenn && parm < 3) { 283 dp = save_string(dp, "%{96}%^"); 284 } 285 286 if (seenm && parm < 3) { 287 dp = save_string(dp, "%{127}%^"); 288 } 289 } 290 291 /* 292 * Convert a termcap string to terminfo format. 293 * 'cap' is the relevant terminfo capability index. 294 * 's' is the string value of the capability. 295 * 'parameterized' tells what type of translations to do: 296 * % translations if 1 297 * pad translations if >=0 298 */ 299 NCURSES_EXPORT(char *) 300 _nc_captoinfo(const char *cap, const char *s, int const parameterized) 301 { 302 const char *capstart; 303 304 stackptr = 0; 305 onstack = 0; 306 seenm = 0; 307 seenn = 0; 308 seenr = 0; 309 param = 1; 310 311 DEBUG_THIS(("_nc_captoinfo params %d, %s", parameterized, s)); 312 313 dp = init_string(); 314 315 /* skip the initial padding (if we haven't been told not to) */ 316 capstart = 0; 317 if (s == 0) 318 s = ""; 319 if (parameterized >= 0 && isdigit(UChar(*s))) 320 for (capstart = s; *s != '\0'; s++) 321 if (!(isdigit(UChar(*s)) || *s == '*' || *s == '.')) 322 break; 323 324 while (*s != '\0') { 325 switch (*s) { 326 case '%': 327 s++; 328 if (parameterized < 1) { 329 dp = save_char(dp, '%'); 330 break; 331 } 332 switch (*s++) { 333 case '%': 334 dp = save_string(dp, "%%"); 335 break; 336 case 'r': 337 if (seenr++ == 1) { 338 _nc_warning("saw %%r twice in %s", cap); 339 } 340 break; 341 case 'm': 342 if (seenm++ == 1) { 343 _nc_warning("saw %%m twice in %s", cap); 344 } 345 break; 346 case 'n': 347 if (seenn++ == 1) { 348 _nc_warning("saw %%n twice in %s", cap); 349 } 350 break; 351 case 'i': 352 dp = save_string(dp, "%i"); 353 break; 354 case '6': 355 case 'B': 356 getparm(param, 1); 357 dp = save_string(dp, "%{10}%/%{16}%*"); 358 getparm(param, 1); 359 dp = save_string(dp, "%{10}%m%+"); 360 break; 361 case '8': 362 case 'D': 363 getparm(param, 2); 364 dp = save_string(dp, "%{2}%*%-"); 365 break; 366 case '>': 367 /* %?%{x}%>%t%{y}%+%; */ 368 if (s[0] && s[1]) { 369 getparm(param, 2); 370 dp = save_string(dp, "%?"); 371 s += cvtchar(s); 372 dp = save_string(dp, "%>%t"); 373 s += cvtchar(s); 374 dp = save_string(dp, "%+%;"); 375 } else { 376 _nc_warning("expected two characters after %%>"); 377 dp = save_string(dp, "%>"); 378 } 379 break; 380 case 'a': 381 if ((*s == '=' || *s == '+' || *s == '-' 382 || *s == '*' || *s == '/') 383 && (s[1] == 'p' || s[1] == 'c') 384 && s[2] != '\0') { 385 int l; 386 l = 2; 387 if (*s != '=') 388 getparm(param, 1); 389 if (s[1] == 'p') { 390 getparm(param + s[2] - '@', 1); 391 if (param != onstack) { 392 pop(); 393 param--; 394 } 395 l++; 396 } else 397 l += cvtchar(s + 2); 398 switch (*s) { 399 case '+': 400 dp = save_string(dp, "%+"); 401 break; 402 case '-': 403 dp = save_string(dp, "%-"); 404 break; 405 case '*': 406 dp = save_string(dp, "%*"); 407 break; 408 case '/': 409 dp = save_string(dp, "%/"); 410 break; 411 case '=': 412 if (seenr) { 413 if (param == 1) 414 onstack = 2; 415 else if (param == 2) 416 onstack = 1; 417 else 418 onstack = param; 419 } else 420 onstack = param; 421 break; 422 } 423 s += l; 424 break; 425 } 426 getparm(param, 1); 427 s += cvtchar(s); 428 dp = save_string(dp, "%+"); 429 break; 430 case '+': 431 getparm(param, 1); 432 s += cvtchar(s); 433 dp = save_string(dp, "%+%c"); 434 pop(); 435 break; 436 case 's': 437 #ifdef WATERLOO 438 s += cvtchar(s); 439 getparm(param, 1); 440 dp = save_string(dp, "%-"); 441 #else 442 getparm(param, 1); 443 dp = save_string(dp, "%s"); 444 pop(); 445 #endif /* WATERLOO */ 446 break; 447 case '-': 448 s += cvtchar(s); 449 getparm(param, 1); 450 dp = save_string(dp, "%-%c"); 451 pop(); 452 break; 453 case '.': 454 getparm(param, 1); 455 dp = save_string(dp, "%c"); 456 pop(); 457 break; 458 case '0': /* not clear any of the historical termcaps did this */ 459 if (*s == '3') { 460 ++s; 461 goto see03; 462 } 463 if (*s == '2') { 464 ++s; 465 goto see02; 466 } 467 goto invalid; 468 case '2': 469 see02: 470 getparm(param, 1); 471 dp = save_string(dp, "%2d"); 472 pop(); 473 break; 474 case '3': 475 see03: 476 getparm(param, 1); 477 dp = save_string(dp, "%3d"); 478 pop(); 479 break; 480 case 'd': 481 getparm(param, 1); 482 dp = save_string(dp, "%d"); 483 pop(); 484 break; 485 case 'f': 486 param++; 487 break; 488 case 'b': 489 param--; 490 break; 491 case '\\': 492 dp = save_string(dp, "%\\"); 493 break; 494 default: 495 invalid: 496 dp = save_char(dp, '%'); 497 s--; 498 _nc_warning("unknown %% code %s (%#x) in %s", 499 unctrl((chtype) *s), UChar(*s), cap); 500 break; 501 } 502 break; 503 default: 504 if (*s != '\0') 505 dp = save_char(dp, *s++); 506 break; 507 } 508 } 509 510 /* 511 * Now, if we stripped off some leading padding, add it at the end 512 * of the string as mandatory padding. 513 */ 514 if (capstart) { 515 dp = save_string(dp, "$<"); 516 for (s = capstart; *s != '\0'; s++) 517 if (isdigit(UChar(*s)) || *s == '*' || *s == '.') 518 dp = save_char(dp, *s); 519 else 520 break; 521 dp = save_string(dp, "/>"); 522 } 523 524 (void) save_char(dp, '\0'); 525 526 DEBUG_THIS(("... _nc_captoinfo %s", NonNull(my_string))); 527 528 return (my_string); 529 } 530 531 /* 532 * Check for an expression that corresponds to "%B" (BCD): 533 * (parameter / 10) * 16 + (parameter % 10) 534 */ 535 static int 536 bcd_expression(const char *str) 537 { 538 /* leave this non-const for HPUX */ 539 static char fmt[] = "%%p%c%%{10}%%/%%{16}%%*%%p%c%%{10}%%m%%+"; 540 int len = 0; 541 char ch1, ch2; 542 543 if (sscanf(str, fmt, &ch1, &ch2) == 2 544 && isdigit(UChar(ch1)) 545 && isdigit(UChar(ch2)) 546 && (ch1 == ch2)) { 547 len = 28; 548 #ifndef NDEBUG 549 { 550 char buffer[80]; 551 int tst; 552 _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer)) fmt, ch1, ch2); 553 tst = strlen(buffer) - 1; 554 assert(len == tst); 555 } 556 #endif 557 } 558 return len; 559 } 560 561 static char * 562 save_tc_char(char *bufptr, int c1) 563 { 564 if (is7bits(c1) && isprint(c1)) { 565 if (c1 == ':' || c1 == '\\') 566 bufptr = save_char(bufptr, '\\'); 567 bufptr = save_char(bufptr, c1); 568 } else { 569 char temp[80]; 570 571 if (c1 == (c1 & 0x1f)) { /* iscntrl() returns T on 255 */ 572 _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) 573 "%.20s", unctrl((chtype) c1)); 574 } else { 575 _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) 576 "\\%03o", c1); 577 } 578 bufptr = save_string(bufptr, temp); 579 } 580 return bufptr; 581 } 582 583 static char * 584 save_tc_inequality(char *bufptr, int c1, int c2) 585 { 586 bufptr = save_string(bufptr, "%>"); 587 bufptr = save_tc_char(bufptr, c1); 588 bufptr = save_tc_char(bufptr, c2); 589 return bufptr; 590 } 591 592 /* 593 * info-to-cap --- conversion between terminfo and termcap formats 594 * 595 * Here are the capabilities infotocap assumes it can translate to: 596 * 597 * %% output `%' 598 * %d output value as in printf %d 599 * %2 output value as in printf %2d 600 * %3 output value as in printf %3d 601 * %. output value as in printf %c 602 * %+c add character c to value, then do %. 603 * %>xy if value > x then add y, no output 604 * %r reverse order of two parameters, no output 605 * %i increment by one, no output 606 * %n exclusive-or all parameters with 0140 (Datamedia 2500) 607 * %B BCD (16*(value/10)) + (value%10), no output 608 * %D Reverse coding (value - 2*(value%16)), no output (Delta Data). 609 * %m exclusive-or all parameters with 0177 (not in 4.4BSD) 610 */ 611 612 #define octal_fixup(n, c) fixups[n].ch = ((fixups[n].ch << 3) | ((c) - '0')) 613 614 /* 615 * Convert a terminfo string to termcap format. Parameters are as in 616 * _nc_captoinfo(). 617 */ 618 NCURSES_EXPORT(char *) 619 _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parameterized) 620 { 621 int seenone = 0, seentwo = 0, saw_m = 0, saw_n = 0; 622 const char *padding; 623 const char *trimmed = 0; 624 int in0, in1, in2; 625 char ch1 = 0, ch2 = 0; 626 char *bufptr = init_string(); 627 char octal[4]; 628 int len; 629 int digits; 630 bool syntax_error = FALSE; 631 int myfix = 0; 632 struct { 633 int ch; 634 int offset; 635 } fixups[MAX_TC_FIXUPS]; 636 637 DEBUG_THIS(("_nc_infotocap params %d, %s", parameterized, str)); 638 639 /* we may have to move some trailing mandatory padding up front */ 640 padding = str + strlen(str) - 1; 641 if (padding > str && *padding == '>') { 642 if (padding > (str + 1) && *--padding == '/') 643 --padding; 644 while (isdigit(UChar(*padding)) || *padding == '.' || *padding == '*') 645 padding--; 646 if (padding > str && *padding == '<' && *--padding == '$') 647 trimmed = padding; 648 padding += 2; 649 650 while (isdigit(UChar(*padding)) || *padding == '.' || *padding == '*') 651 bufptr = save_char(bufptr, *padding++); 652 } 653 654 for (; !syntax_error && 655 *str && 656 ((trimmed == 0) || (str < trimmed)); str++) { 657 int c1, c2; 658 char *cp = 0; 659 660 if (str[0] == '^') { 661 if (str[1] == '\0' || (str + 1) == trimmed) { 662 bufptr = save_string(bufptr, "\\136"); 663 ++str; 664 } else if (str[1] == '?') { 665 /* 666 * Although the 4.3BSD termcap file has an instance of "kb=^?", 667 * that appears to be just cut/paste since neither 4.3BSD nor 668 * 4.4BSD termcap interprets "^?" as DEL. 669 */ 670 bufptr = save_string(bufptr, "\\177"); 671 ++str; 672 } else { 673 bufptr = save_char(bufptr, *str++); 674 bufptr = save_char(bufptr, *str); 675 } 676 } else if (str[0] == '\\') { 677 if (str[1] == '\0' || (str + 1) == trimmed) { 678 bufptr = save_string(bufptr, "\\134"); 679 ++str; 680 } else if (str[1] == '^') { 681 bufptr = save_string(bufptr, "\\136"); 682 ++str; 683 } else if (str[1] == ',') { 684 bufptr = save_char(bufptr, *++str); 685 } else { 686 int xx1; 687 688 bufptr = save_char(bufptr, *str++); 689 xx1 = *str; 690 if (_nc_strict_bsd) { 691 692 if (isoctal(UChar(xx1))) { 693 int pad = 0; 694 int xx2; 695 int fix = 0; 696 697 if (!isoctal(UChar(str[1]))) 698 pad = 2; 699 else if (str[1] && !isoctal(UChar(str[2]))) 700 pad = 1; 701 702 /* 703 * Test for "\0", "\00" or "\000" and transform those 704 * into "\200". 705 */ 706 if (xx1 == '0' 707 && ((pad == 2) || (str[1] == '0')) 708 && ((pad >= 1) || (str[2] == '0'))) { 709 xx2 = '2'; 710 } else { 711 xx2 = '0'; 712 pad = 0; /* FIXME - optionally pad to 3 digits */ 713 } 714 if (myfix < MAX_TC_FIXUPS) { 715 fix = 3 - pad; 716 fixups[myfix].ch = 0; 717 fixups[myfix].offset = (int) (bufptr 718 - my_string 719 - 1); 720 } 721 while (pad-- > 0) { 722 bufptr = save_char(bufptr, xx2); 723 if (myfix < MAX_TC_FIXUPS) { 724 fixups[myfix].ch <<= 3; 725 fixups[myfix].ch |= (xx2 - '0'); 726 } 727 xx2 = '0'; 728 } 729 if (myfix < MAX_TC_FIXUPS) { 730 int n; 731 for (n = 0; n < fix; ++n) { 732 fixups[myfix].ch <<= 3; 733 fixups[myfix].ch |= (str[n] - '0'); 734 } 735 if (fixups[myfix].ch < 32) { 736 ++myfix; 737 } 738 } 739 } else if (strchr("E\\nrtbf", xx1) == 0) { 740 switch (xx1) { 741 case 'e': 742 xx1 = 'E'; 743 break; 744 case 'l': 745 xx1 = 'n'; 746 break; 747 case 's': 748 bufptr = save_char(bufptr, '0'); 749 bufptr = save_char(bufptr, '4'); 750 xx1 = '0'; 751 break; 752 case ':': 753 /* 754 * Note: termcap documentation claims that ":" 755 * must be escaped as "\072", however the 756 * documentation is incorrect - read the code. 757 * The replacement does not work reliably, 758 * so the advice is not helpful. 759 */ 760 bufptr = save_char(bufptr, '0'); 761 bufptr = save_char(bufptr, '7'); 762 xx1 = '2'; 763 break; 764 default: 765 /* should not happen, but handle this anyway */ 766 _nc_SPRINTF(octal, _nc_SLIMIT(sizeof(octal)) 767 "%03o", UChar(xx1)); 768 bufptr = save_char(bufptr, octal[0]); 769 bufptr = save_char(bufptr, octal[1]); 770 xx1 = octal[2]; 771 break; 772 } 773 } 774 } else { 775 if (myfix < MAX_TC_FIXUPS && isoctal(UChar(xx1))) { 776 bool will_fix = TRUE; 777 int n; 778 779 fixups[myfix].ch = 0; 780 fixups[myfix].offset = (int) (bufptr - my_string - 1); 781 for (n = 0; n < 3; ++n) { 782 if (isoctal(str[n])) { 783 octal_fixup(myfix, str[n]); 784 } else { 785 will_fix = FALSE; 786 break; 787 } 788 } 789 if (will_fix && (fixups[myfix].ch < 32)) 790 ++myfix; 791 } 792 } 793 bufptr = save_char(bufptr, xx1); 794 } 795 } else if (str[0] == '$' && str[1] == '<') { /* discard padding */ 796 str += 2; 797 while (isdigit(UChar(*str)) 798 || *str == '.' 799 || *str == '*' 800 || *str == '/' 801 || *str == '>') 802 str++; 803 --str; 804 } else if (sscanf(str, 805 "[%%?%%p1%%{8}%%<%%t%d%%p1%%d%%e%%p1%%{16}%%<%%t%d%%p1%%{8}%%-%%d%%e%d;5;%%p1%%d%%;m", 806 &in0, &in1, &in2) == 3 807 && ((in0 == 4 && in1 == 10 && in2 == 48) 808 || (in0 == 3 && in1 == 9 && in2 == 38))) { 809 /* dumb-down an optimized case from xterm-256color for termcap */ 810 if ((str = strstr(str, ";m")) == 0) 811 break; /* cannot happen */ 812 ++str; 813 if (in2 == 48) { 814 bufptr = save_string(bufptr, "[48;5;%dm"); 815 } else { 816 bufptr = save_string(bufptr, "[38;5;%dm"); 817 } 818 } else if (str[0] == '%' && str[1] == '%') { /* escaped '%' */ 819 bufptr = save_string(bufptr, "%%"); 820 ++str; 821 } else if (*str != '%' || (parameterized < 1)) { 822 bufptr = save_char(bufptr, *str); 823 } else if (sscanf(str, "%%?%%{%d}%%>%%t%%{%d}%%+%%;", &c1, &c2) == 2) { 824 str = strchr(str, ';'); 825 bufptr = save_tc_inequality(bufptr, c1, c2); 826 } else if (sscanf(str, "%%?%%{%d}%%>%%t%%'%c'%%+%%;", &c1, &ch2) == 2) { 827 str = strchr(str, ';'); 828 bufptr = save_tc_inequality(bufptr, c1, ch2); 829 } else if (sscanf(str, "%%?%%'%c'%%>%%t%%{%d}%%+%%;", &ch1, &c2) == 2) { 830 str = strchr(str, ';'); 831 bufptr = save_tc_inequality(bufptr, ch1, c2); 832 } else if (sscanf(str, "%%?%%'%c'%%>%%t%%'%c'%%+%%;", &ch1, &ch2) == 2) { 833 str = strchr(str, ';'); 834 bufptr = save_tc_inequality(bufptr, ch1, ch2); 835 } else if ((len = bcd_expression(str)) != 0) { 836 str += len; 837 bufptr = save_string(bufptr, "%B"); 838 } else if ((sscanf(str, "%%{%d}%%+%%%c", &c1, &ch2) == 2 839 || sscanf(str, "%%'%c'%%+%%%c", &ch1, &ch2) == 2) 840 && ch2 == 'c' 841 && (cp = strchr(str, '+'))) { 842 str = cp + 2; 843 bufptr = save_string(bufptr, "%+"); 844 845 if (ch1) 846 c1 = ch1; 847 bufptr = save_tc_char(bufptr, c1); 848 } 849 /* FIXME: this "works" for 'delta' */ 850 else if (strncmp(str, "%{2}%*%-", (size_t) 8) == 0) { 851 str += 7; 852 bufptr = save_string(bufptr, "%D"); 853 } else if (strncmp(str, "%{96}%^", (size_t) 7) == 0) { 854 str += 6; 855 if (saw_m++ == 0) { 856 bufptr = save_string(bufptr, "%n"); 857 } 858 } else if (strncmp(str, "%{127}%^", (size_t) 8) == 0) { 859 str += 7; 860 if (saw_n++ == 0) { 861 bufptr = save_string(bufptr, "%m"); 862 } 863 } else { /* cm-style format element */ 864 str++; 865 switch (*str) { 866 case '%': 867 bufptr = save_char(bufptr, '%'); 868 break; 869 870 case '0': 871 case '1': 872 case '2': 873 case '3': 874 case '4': 875 case '5': 876 case '6': 877 case '7': 878 case '8': 879 case '9': 880 bufptr = save_char(bufptr, '%'); 881 ch1 = 0; 882 ch2 = 0; 883 digits = 0; 884 while (isdigit(UChar(*str))) { 885 if (++digits > 2) { 886 syntax_error = TRUE; 887 break; 888 } 889 ch2 = ch1; 890 ch1 = *str++; 891 if (digits == 2 && ch2 != '0') { 892 syntax_error = TRUE; 893 break; 894 } else if (_nc_strict_bsd) { 895 if (ch1 > '3') { 896 syntax_error = TRUE; 897 break; 898 } 899 } else { 900 bufptr = save_char(bufptr, ch1); 901 } 902 } 903 if (syntax_error) 904 break; 905 /* 906 * Convert %02 to %2 and %03 to %3 907 */ 908 if (ch2 == '0' && !_nc_strict_bsd) { 909 ch2 = 0; 910 bufptr[-2] = bufptr[-1]; 911 *--bufptr = 0; 912 } 913 if (_nc_strict_bsd) { 914 if (ch2 != 0 && ch2 != '0') { 915 syntax_error = TRUE; 916 } else if (ch1 < '2') { 917 ch1 = 'd'; 918 } 919 bufptr = save_char(bufptr, ch1); 920 } 921 if (strchr("oxX.", *str)) { 922 syntax_error = TRUE; /* termcap doesn't have octal, hex */ 923 } 924 break; 925 926 case 'd': 927 bufptr = save_string(bufptr, "%d"); 928 break; 929 930 case 'c': 931 bufptr = save_string(bufptr, "%."); 932 break; 933 934 /* 935 * %s isn't in termcap, but it's convenient to pass it through 936 * so we can represent things like terminfo pfkey strings in 937 * termcap notation. 938 */ 939 case 's': 940 if (_nc_strict_bsd) { 941 syntax_error = TRUE; 942 } else { 943 bufptr = save_string(bufptr, "%s"); 944 } 945 break; 946 947 case 'p': 948 str++; 949 if (*str == '1') 950 seenone = 1; 951 else if (*str == '2') { 952 if (!seenone && !seentwo) { 953 bufptr = save_string(bufptr, "%r"); 954 seentwo++; 955 } 956 } else if (*str >= '3') { 957 syntax_error = TRUE; 958 } 959 break; 960 961 case 'i': 962 bufptr = save_string(bufptr, "%i"); 963 break; 964 965 default: 966 bufptr = save_char(bufptr, *str); 967 syntax_error = TRUE; 968 break; 969 } /* endswitch (*str) */ 970 } /* endelse (*str == '%') */ 971 972 /* 973 * 'str' always points to the end of what was scanned in this step, 974 * but that may not be the end of the string. 975 */ 976 assert(str != 0); 977 if (str == 0 || *str == '\0') 978 break; 979 980 } /* endwhile (*str) */ 981 982 if (!syntax_error && 983 myfix > 0 && 984 ((int) strlen(my_string) - (4 * myfix)) < MIN_TC_FIXUPS) { 985 while (--myfix >= 0) { 986 char *p = fixups[myfix].offset + my_string; 987 *p++ = '^'; 988 *p++ = (char) (fixups[myfix].ch | '@'); 989 while ((p[0] = p[2]) != '\0') { 990 ++p; 991 } 992 } 993 } 994 995 DEBUG_THIS(("... _nc_infotocap %s", 996 syntax_error 997 ? "<ERR>" 998 : _nc_visbuf(my_string))); 999 1000 return (syntax_error ? NULL : my_string); 1001 } 1002 1003 #ifdef MAIN 1004 1005 int curr_line; 1006 1007 int 1008 main(int argc, char *argv[]) 1009 { 1010 int c, tc = FALSE; 1011 1012 while ((c = getopt(argc, argv, "c")) != EOF) 1013 switch (c) { 1014 case 'c': 1015 tc = TRUE; 1016 break; 1017 } 1018 1019 curr_line = 0; 1020 for (;;) { 1021 char buf[BUFSIZ]; 1022 1023 ++curr_line; 1024 if (fgets(buf, sizeof(buf), stdin) == 0) 1025 break; 1026 buf[strlen(buf) - 1] = '\0'; 1027 _nc_set_source(buf); 1028 1029 if (tc) { 1030 char *cp = _nc_infotocap("to termcap", buf, 1); 1031 1032 if (cp) 1033 (void) fputs(cp, stdout); 1034 } else 1035 (void) fputs(_nc_captoinfo("to terminfo", buf, 1), stdout); 1036 (void) putchar('\n'); 1037 } 1038 return (0); 1039 } 1040 #endif /* MAIN */ 1041 1042 #if NO_LEAKS 1043 NCURSES_EXPORT(void) 1044 _nc_captoinfo_leaks(void) 1045 { 1046 if (my_string != 0) { 1047 FreeAndNull(my_string); 1048 } 1049 my_length = 0; 1050 } 1051 #endif 1052