1 /* $NetBSD: terminal.c,v 1.45 2022/10/30 19:11:31 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Christos Zoulas of Cornell University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include "config.h" 36 #if !defined(lint) && !defined(SCCSID) 37 #if 0 38 static char sccsid[] = "@(#)term.c 8.2 (Berkeley) 4/30/95"; 39 #else 40 __RCSID("$NetBSD: terminal.c,v 1.45 2022/10/30 19:11:31 christos Exp $"); 41 #endif 42 #endif /* not lint && not SCCSID */ 43 44 /* 45 * terminal.c: Editor/termcap-curses interface 46 * We have to declare a static variable here, since the 47 * termcap putchar routine does not take an argument! 48 */ 49 #include <sys/types.h> 50 #include <sys/ioctl.h> 51 #include <limits.h> 52 #include <signal.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 #ifdef HAVE_TERMCAP_H 58 #include <termcap.h> 59 #endif 60 #ifdef HAVE_CURSES_H 61 #include <curses.h> 62 #elif HAVE_NCURSES_H 63 #include <ncurses.h> 64 #endif 65 66 /* Solaris's term.h does horrid things. */ 67 #if defined(HAVE_TERM_H) && !defined(__sun) && !defined(HAVE_TERMCAP_H) 68 #include <term.h> 69 #endif 70 71 #ifdef _REENTRANT 72 #include <pthread.h> 73 #endif 74 75 #include "el.h" 76 #include "fcns.h" 77 78 /* 79 * IMPORTANT NOTE: these routines are allowed to look at the current screen 80 * and the current position assuming that it is correct. If this is not 81 * true, then the update will be WRONG! This is (should be) a valid 82 * assumption... 83 */ 84 85 #define TC_BUFSIZE ((size_t)2048) 86 87 #define GoodStr(a) (el->el_terminal.t_str[a] != NULL && \ 88 el->el_terminal.t_str[a][0] != '\0') 89 #define Str(a) el->el_terminal.t_str[a] 90 #define Val(a) el->el_terminal.t_val[a] 91 92 static const struct termcapstr { 93 const char *name; 94 const char *long_name; 95 } tstr[] = { 96 #define T_al 0 97 { "al", "add new blank line" }, 98 #define T_bl 1 99 { "bl", "audible bell" }, 100 #define T_cd 2 101 { "cd", "clear to bottom" }, 102 #define T_ce 3 103 { "ce", "clear to end of line" }, 104 #define T_ch 4 105 { "ch", "cursor to horiz pos" }, 106 #define T_cl 5 107 { "cl", "clear screen" }, 108 #define T_dc 6 109 { "dc", "delete a character" }, 110 #define T_dl 7 111 { "dl", "delete a line" }, 112 #define T_dm 8 113 { "dm", "start delete mode" }, 114 #define T_ed 9 115 { "ed", "end delete mode" }, 116 #define T_ei 10 117 { "ei", "end insert mode" }, 118 #define T_fs 11 119 { "fs", "cursor from status line" }, 120 #define T_ho 12 121 { "ho", "home cursor" }, 122 #define T_ic 13 123 { "ic", "insert character" }, 124 #define T_im 14 125 { "im", "start insert mode" }, 126 #define T_ip 15 127 { "ip", "insert padding" }, 128 #define T_kd 16 129 { "kd", "sends cursor down" }, 130 #define T_kl 17 131 { "kl", "sends cursor left" }, 132 #define T_kr 18 133 { "kr", "sends cursor right" }, 134 #define T_ku 19 135 { "ku", "sends cursor up" }, 136 #define T_md 20 137 { "md", "begin bold" }, 138 #define T_me 21 139 { "me", "end attributes" }, 140 #define T_nd 22 141 { "nd", "non destructive space" }, 142 #define T_se 23 143 { "se", "end standout" }, 144 #define T_so 24 145 { "so", "begin standout" }, 146 #define T_ts 25 147 { "ts", "cursor to status line" }, 148 #define T_up 26 149 { "up", "cursor up one" }, 150 #define T_us 27 151 { "us", "begin underline" }, 152 #define T_ue 28 153 { "ue", "end underline" }, 154 #define T_vb 29 155 { "vb", "visible bell" }, 156 #define T_DC 30 157 { "DC", "delete multiple chars" }, 158 #define T_DO 31 159 { "DO", "cursor down multiple" }, 160 #define T_IC 32 161 { "IC", "insert multiple chars" }, 162 #define T_LE 33 163 { "LE", "cursor left multiple" }, 164 #define T_RI 34 165 { "RI", "cursor right multiple" }, 166 #define T_UP 35 167 { "UP", "cursor up multiple" }, 168 #define T_kh 36 169 { "kh", "send cursor home" }, 170 #define T_at7 37 171 { "@7", "send cursor end" }, 172 #define T_kD 38 173 { "kD", "send cursor delete" }, 174 #define T_str 39 175 { NULL, NULL } 176 }; 177 178 static const struct termcapval { 179 const char *name; 180 const char *long_name; 181 } tval[] = { 182 #define T_am 0 183 { "am", "has automatic margins" }, 184 #define T_pt 1 185 { "pt", "has physical tabs" }, 186 #define T_li 2 187 { "li", "Number of lines" }, 188 #define T_co 3 189 { "co", "Number of columns" }, 190 #define T_km 4 191 { "km", "Has meta key" }, 192 #define T_xt 5 193 { "xt", "Tab chars destructive" }, 194 #define T_xn 6 195 { "xn", "newline ignored at right margin" }, 196 #define T_MT 7 197 { "MT", "Has meta key" }, /* XXX? */ 198 #define T_val 8 199 { NULL, NULL, } 200 }; 201 /* do two or more of the attributes use me */ 202 203 static void terminal_setflags(EditLine *); 204 static int terminal_rebuffer_display(EditLine *); 205 static void terminal_free_display(EditLine *); 206 static int terminal_alloc_display(EditLine *); 207 static void terminal_alloc(EditLine *, const struct termcapstr *, 208 const char *); 209 static void terminal_init_arrow(EditLine *); 210 static void terminal_reset_arrow(EditLine *); 211 static int terminal_putc(int); 212 static void terminal_tputs(EditLine *, const char *, int); 213 214 #ifdef _REENTRANT 215 static pthread_mutex_t terminal_mutex = PTHREAD_MUTEX_INITIALIZER; 216 #endif 217 static FILE *terminal_outfile = NULL; 218 219 220 /* terminal_setflags(): 221 * Set the terminal capability flags 222 */ 223 static void 224 terminal_setflags(EditLine *el) 225 { 226 EL_FLAGS = 0; 227 if (el->el_tty.t_tabs) 228 EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; 229 230 EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; 231 EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; 232 EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; 233 EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? 234 TERM_CAN_INSERT : 0; 235 EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; 236 EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; 237 EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; 238 239 if (GoodStr(T_me) && GoodStr(T_ue)) 240 EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? 241 TERM_CAN_ME : 0; 242 else 243 EL_FLAGS &= ~TERM_CAN_ME; 244 if (GoodStr(T_me) && GoodStr(T_se)) 245 EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? 246 TERM_CAN_ME : 0; 247 248 249 #ifdef DEBUG_SCREEN 250 if (!EL_CAN_UP) { 251 (void) fprintf(el->el_errfile, 252 "WARNING: Your terminal cannot move up.\n"); 253 (void) fprintf(el->el_errfile, 254 "Editing may be odd for long lines.\n"); 255 } 256 if (!EL_CAN_CEOL) 257 (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); 258 if (!EL_CAN_DELETE) 259 (void) fprintf(el->el_errfile, "no delete char capability.\n"); 260 if (!EL_CAN_INSERT) 261 (void) fprintf(el->el_errfile, "no insert char capability.\n"); 262 #endif /* DEBUG_SCREEN */ 263 } 264 265 /* terminal_init(): 266 * Initialize the terminal stuff 267 */ 268 libedit_private int 269 terminal_init(EditLine *el) 270 { 271 272 el->el_terminal.t_buf = el_calloc(TC_BUFSIZE, 273 sizeof(*el->el_terminal.t_buf)); 274 if (el->el_terminal.t_buf == NULL) 275 return -1; 276 el->el_terminal.t_cap = el_calloc(TC_BUFSIZE, 277 sizeof(*el->el_terminal.t_cap)); 278 if (el->el_terminal.t_cap == NULL) 279 goto out; 280 el->el_terminal.t_fkey = el_calloc(A_K_NKEYS, 281 sizeof(*el->el_terminal.t_fkey)); 282 if (el->el_terminal.t_fkey == NULL) 283 goto out; 284 el->el_terminal.t_loc = 0; 285 el->el_terminal.t_str = el_calloc(T_str, 286 sizeof(*el->el_terminal.t_str)); 287 if (el->el_terminal.t_str == NULL) 288 goto out; 289 el->el_terminal.t_val = el_calloc(T_val, 290 sizeof(*el->el_terminal.t_val)); 291 if (el->el_terminal.t_val == NULL) 292 goto out; 293 (void) terminal_set(el, NULL); 294 terminal_init_arrow(el); 295 return 0; 296 out: 297 terminal_end(el); 298 return -1; 299 } 300 301 /* terminal_end(): 302 * Clean up the terminal stuff 303 */ 304 libedit_private void 305 terminal_end(EditLine *el) 306 { 307 308 el_free(el->el_terminal.t_buf); 309 el->el_terminal.t_buf = NULL; 310 el_free(el->el_terminal.t_cap); 311 el->el_terminal.t_cap = NULL; 312 el->el_terminal.t_loc = 0; 313 el_free(el->el_terminal.t_str); 314 el->el_terminal.t_str = NULL; 315 el_free(el->el_terminal.t_val); 316 el->el_terminal.t_val = NULL; 317 el_free(el->el_terminal.t_fkey); 318 el->el_terminal.t_fkey = NULL; 319 terminal_free_display(el); 320 } 321 322 323 /* terminal_alloc(): 324 * Maintain a string pool for termcap strings 325 */ 326 static void 327 terminal_alloc(EditLine *el, const struct termcapstr *t, const char *cap) 328 { 329 char termbuf[TC_BUFSIZE]; 330 size_t tlen, clen; 331 char **tlist = el->el_terminal.t_str; 332 char **tmp, **str = &tlist[t - tstr]; 333 334 (void) memset(termbuf, 0, sizeof(termbuf)); 335 if (cap == NULL || *cap == '\0') { 336 *str = NULL; 337 return; 338 } else 339 clen = strlen(cap); 340 341 tlen = *str == NULL ? 0 : strlen(*str); 342 343 /* 344 * New string is shorter; no need to allocate space 345 */ 346 if (clen <= tlen) { 347 if (*str) 348 (void) strcpy(*str, cap); /* XXX strcpy is safe */ 349 return; 350 } 351 /* 352 * New string is longer; see if we have enough space to append 353 */ 354 if (el->el_terminal.t_loc + 3 < TC_BUFSIZE) { 355 /* XXX strcpy is safe */ 356 (void) strcpy(*str = &el->el_terminal.t_buf[ 357 el->el_terminal.t_loc], cap); 358 el->el_terminal.t_loc += clen + 1; /* one for \0 */ 359 return; 360 } 361 /* 362 * Compact our buffer; no need to check compaction, cause we know it 363 * fits... 364 */ 365 tlen = 0; 366 for (tmp = tlist; tmp < &tlist[T_str]; tmp++) 367 if (*tmp != NULL && **tmp != '\0' && *tmp != *str) { 368 char *ptr; 369 370 for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) 371 continue; 372 termbuf[tlen++] = '\0'; 373 } 374 memcpy(el->el_terminal.t_buf, termbuf, TC_BUFSIZE); 375 el->el_terminal.t_loc = tlen; 376 if (el->el_terminal.t_loc + 3 >= TC_BUFSIZE) { 377 (void) fprintf(el->el_errfile, 378 "Out of termcap string space.\n"); 379 return; 380 } 381 /* XXX strcpy is safe */ 382 (void) strcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc], 383 cap); 384 el->el_terminal.t_loc += (size_t)clen + 1; /* one for \0 */ 385 return; 386 } 387 388 389 /* terminal_rebuffer_display(): 390 * Rebuffer the display after the screen changed size 391 */ 392 static int 393 terminal_rebuffer_display(EditLine *el) 394 { 395 coord_t *c = &el->el_terminal.t_size; 396 397 terminal_free_display(el); 398 399 c->h = Val(T_co); 400 c->v = Val(T_li); 401 402 if (terminal_alloc_display(el) == -1) 403 return -1; 404 return 0; 405 } 406 407 static wint_t ** 408 terminal_alloc_buffer(EditLine *el) 409 { 410 wint_t **b; 411 coord_t *c = &el->el_terminal.t_size; 412 int i; 413 414 b = el_calloc((size_t)(c->v + 1), sizeof(*b)); 415 if (b == NULL) 416 return NULL; 417 for (i = 0; i < c->v; i++) { 418 b[i] = el_calloc((size_t)(c->h + 1), sizeof(**b)); 419 if (b[i] == NULL) { 420 while (--i >= 0) 421 el_free(b[i]); 422 el_free(b); 423 return NULL; 424 } 425 } 426 b[c->v] = NULL; 427 return b; 428 } 429 430 static void 431 terminal_free_buffer(wint_t ***bp) 432 { 433 wint_t **b; 434 wint_t **bufp; 435 436 if (*bp == NULL) 437 return; 438 439 b = *bp; 440 *bp = NULL; 441 442 for (bufp = b; *bufp != NULL; bufp++) 443 el_free(*bufp); 444 el_free(b); 445 } 446 447 /* terminal_alloc_display(): 448 * Allocate a new display. 449 */ 450 static int 451 terminal_alloc_display(EditLine *el) 452 { 453 el->el_display = terminal_alloc_buffer(el); 454 if (el->el_display == NULL) 455 goto done; 456 el->el_vdisplay = terminal_alloc_buffer(el); 457 if (el->el_vdisplay == NULL) 458 goto done; 459 return 0; 460 done: 461 terminal_free_display(el); 462 return -1; 463 } 464 465 466 /* terminal_free_display(): 467 * Free the display buffers 468 */ 469 static void 470 terminal_free_display(EditLine *el) 471 { 472 terminal_free_buffer(&el->el_display); 473 terminal_free_buffer(&el->el_vdisplay); 474 } 475 476 477 /* terminal_move_to_line(): 478 * move to line <where> (first line == 0) 479 * as efficiently as possible 480 */ 481 libedit_private void 482 terminal_move_to_line(EditLine *el, int where) 483 { 484 int del; 485 486 if (where == el->el_cursor.v) 487 return; 488 489 if (where >= el->el_terminal.t_size.v) { 490 #ifdef DEBUG_SCREEN 491 (void) fprintf(el->el_errfile, 492 "%s: where is ridiculous: %d\r\n", __func__, where); 493 #endif /* DEBUG_SCREEN */ 494 return; 495 } 496 if ((del = where - el->el_cursor.v) > 0) { 497 /* 498 * We don't use DO here because some terminals are buggy 499 * if the destination is beyond bottom of the screen. 500 */ 501 for (; del > 0; del--) 502 terminal__putc(el, '\n'); 503 /* because the \n will become \r\n */ 504 el->el_cursor.h = 0; 505 } else { /* del < 0 */ 506 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 507 terminal_tputs(el, tgoto(Str(T_UP), -del, -del), -del); 508 else { 509 if (GoodStr(T_up)) 510 for (; del < 0; del++) 511 terminal_tputs(el, Str(T_up), 1); 512 } 513 } 514 el->el_cursor.v = where;/* now where is here */ 515 } 516 517 518 /* terminal_move_to_char(): 519 * Move to the character position specified 520 */ 521 libedit_private void 522 terminal_move_to_char(EditLine *el, int where) 523 { 524 int del, i; 525 526 mc_again: 527 if (where == el->el_cursor.h) 528 return; 529 530 if (where > el->el_terminal.t_size.h) { 531 #ifdef DEBUG_SCREEN 532 (void) fprintf(el->el_errfile, 533 "%s: where is ridiculous: %d\r\n", __func__, where); 534 #endif /* DEBUG_SCREEN */ 535 return; 536 } 537 if (!where) { /* if where is first column */ 538 terminal__putc(el, '\r'); /* do a CR */ 539 el->el_cursor.h = 0; 540 return; 541 } 542 del = where - el->el_cursor.h; 543 544 if ((del < -4 || del > 4) && GoodStr(T_ch)) 545 /* go there directly */ 546 terminal_tputs(el, tgoto(Str(T_ch), where, where), where); 547 else { 548 if (del > 0) { /* moving forward */ 549 if ((del > 4) && GoodStr(T_RI)) 550 terminal_tputs(el, tgoto(Str(T_RI), del, del), 551 del); 552 else { 553 /* if I can do tabs, use them */ 554 if (EL_CAN_TAB) { 555 if ((el->el_cursor.h & 0370) != 556 (where & ~0x7) 557 && (el->el_display[ 558 el->el_cursor.v][where & 0370] != 559 MB_FILL_CHAR) 560 ) { 561 /* if not within tab stop */ 562 for (i = 563 (el->el_cursor.h & 0370); 564 i < (where & ~0x7); 565 i += 8) 566 terminal__putc(el, 567 '\t'); 568 /* then tab over */ 569 el->el_cursor.h = where & ~0x7; 570 } 571 } 572 /* 573 * it's usually cheaper to just write the 574 * chars, so we do. 575 */ 576 /* 577 * NOTE THAT terminal_overwrite() WILL CHANGE 578 * el->el_cursor.h!!! 579 */ 580 terminal_overwrite(el, 581 (wchar_t *)&el->el_display[ 582 el->el_cursor.v][el->el_cursor.h], 583 (size_t)(where - el->el_cursor.h)); 584 585 } 586 } else { /* del < 0 := moving backward */ 587 if ((-del > 4) && GoodStr(T_LE)) 588 terminal_tputs(el, tgoto(Str(T_LE), -del, -del), 589 -del); 590 else { /* can't go directly there */ 591 /* 592 * if the "cost" is greater than the "cost" 593 * from col 0 594 */ 595 if (EL_CAN_TAB ? 596 ((unsigned int)-del > 597 (((unsigned int) where >> 3) + 598 (where & 07))) 599 : (-del > where)) { 600 terminal__putc(el, '\r');/* do a CR */ 601 el->el_cursor.h = 0; 602 goto mc_again; /* and try again */ 603 } 604 for (i = 0; i < -del; i++) 605 terminal__putc(el, '\b'); 606 } 607 } 608 } 609 el->el_cursor.h = where; /* now where is here */ 610 } 611 612 613 /* terminal_overwrite(): 614 * Overstrike num characters 615 * Assumes MB_FILL_CHARs are present to keep the column count correct 616 */ 617 libedit_private void 618 terminal_overwrite(EditLine *el, const wchar_t *cp, size_t n) 619 { 620 if (n == 0) 621 return; 622 623 if (n > (size_t)el->el_terminal.t_size.h) { 624 #ifdef DEBUG_SCREEN 625 (void) fprintf(el->el_errfile, 626 "%s: n is ridiculous: %zu\r\n", __func__, n); 627 #endif /* DEBUG_SCREEN */ 628 return; 629 } 630 631 do { 632 /* terminal__putc() ignores any MB_FILL_CHARs */ 633 terminal__putc(el, *cp++); 634 el->el_cursor.h++; 635 } while (--n); 636 637 if (el->el_cursor.h >= el->el_terminal.t_size.h) { /* wrap? */ 638 if (EL_HAS_AUTO_MARGINS) { /* yes */ 639 el->el_cursor.h = 0; 640 if (el->el_cursor.v + 1 < el->el_terminal.t_size.v) 641 el->el_cursor.v++; 642 if (EL_HAS_MAGIC_MARGINS) { 643 /* force the wrap to avoid the "magic" 644 * situation */ 645 wchar_t c; 646 if ((c = el->el_display[el->el_cursor.v] 647 [el->el_cursor.h]) != '\0') { 648 terminal_overwrite(el, &c, (size_t)1); 649 while (el->el_display[el->el_cursor.v] 650 [el->el_cursor.h] == MB_FILL_CHAR) 651 el->el_cursor.h++; 652 } else { 653 terminal__putc(el, ' '); 654 el->el_cursor.h = 1; 655 } 656 } 657 } else /* no wrap, but cursor stays on screen */ 658 el->el_cursor.h = el->el_terminal.t_size.h - 1; 659 } 660 } 661 662 663 /* terminal_deletechars(): 664 * Delete num characters 665 */ 666 libedit_private void 667 terminal_deletechars(EditLine *el, int num) 668 { 669 if (num <= 0) 670 return; 671 672 if (!EL_CAN_DELETE) { 673 #ifdef DEBUG_EDIT 674 (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); 675 #endif /* DEBUG_EDIT */ 676 return; 677 } 678 if (num > el->el_terminal.t_size.h) { 679 #ifdef DEBUG_SCREEN 680 (void) fprintf(el->el_errfile, 681 "%s: num is ridiculous: %d\r\n", __func__, num); 682 #endif /* DEBUG_SCREEN */ 683 return; 684 } 685 if (GoodStr(T_DC)) /* if I have multiple delete */ 686 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more 687 * expen. */ 688 terminal_tputs(el, tgoto(Str(T_DC), num, num), num); 689 return; 690 } 691 if (GoodStr(T_dm)) /* if I have delete mode */ 692 terminal_tputs(el, Str(T_dm), 1); 693 694 if (GoodStr(T_dc)) /* else do one at a time */ 695 while (num--) 696 terminal_tputs(el, Str(T_dc), 1); 697 698 if (GoodStr(T_ed)) /* if I have delete mode */ 699 terminal_tputs(el, Str(T_ed), 1); 700 } 701 702 703 /* terminal_insertwrite(): 704 * Puts terminal in insert character mode or inserts num 705 * characters in the line 706 * Assumes MB_FILL_CHARs are present to keep column count correct 707 */ 708 libedit_private void 709 terminal_insertwrite(EditLine *el, wchar_t *cp, int num) 710 { 711 if (num <= 0) 712 return; 713 if (!EL_CAN_INSERT) { 714 #ifdef DEBUG_EDIT 715 (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); 716 #endif /* DEBUG_EDIT */ 717 return; 718 } 719 if (num > el->el_terminal.t_size.h) { 720 #ifdef DEBUG_SCREEN 721 (void) fprintf(el->el_errfile, 722 "%s: num is ridiculous: %d\r\n", __func__, num); 723 #endif /* DEBUG_SCREEN */ 724 return; 725 } 726 if (GoodStr(T_IC)) /* if I have multiple insert */ 727 if ((num > 1) || !GoodStr(T_ic)) { 728 /* if ic would be more expensive */ 729 terminal_tputs(el, tgoto(Str(T_IC), num, num), num); 730 terminal_overwrite(el, cp, (size_t)num); 731 /* this updates el_cursor.h */ 732 return; 733 } 734 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 735 terminal_tputs(el, Str(T_im), 1); 736 737 el->el_cursor.h += num; 738 do 739 terminal__putc(el, *cp++); 740 while (--num); 741 742 if (GoodStr(T_ip)) /* have to make num chars insert */ 743 terminal_tputs(el, Str(T_ip), 1); 744 745 terminal_tputs(el, Str(T_ei), 1); 746 return; 747 } 748 do { 749 if (GoodStr(T_ic)) /* have to make num chars insert */ 750 terminal_tputs(el, Str(T_ic), 1); 751 752 terminal__putc(el, *cp++); 753 754 el->el_cursor.h++; 755 756 if (GoodStr(T_ip)) /* have to make num chars insert */ 757 terminal_tputs(el, Str(T_ip), 1); 758 /* pad the inserted char */ 759 760 } while (--num); 761 } 762 763 764 /* terminal_clear_EOL(): 765 * clear to end of line. There are num characters to clear 766 */ 767 libedit_private void 768 terminal_clear_EOL(EditLine *el, int num) 769 { 770 int i; 771 772 if (EL_CAN_CEOL && GoodStr(T_ce)) 773 terminal_tputs(el, Str(T_ce), 1); 774 else { 775 for (i = 0; i < num; i++) 776 terminal__putc(el, ' '); 777 el->el_cursor.h += num; /* have written num spaces */ 778 } 779 } 780 781 782 /* terminal_clear_screen(): 783 * Clear the screen 784 */ 785 libedit_private void 786 terminal_clear_screen(EditLine *el) 787 { /* clear the whole screen and home */ 788 789 if (GoodStr(T_cl)) 790 /* send the clear screen code */ 791 terminal_tputs(el, Str(T_cl), Val(T_li)); 792 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 793 terminal_tputs(el, Str(T_ho), Val(T_li)); /* home */ 794 /* clear to bottom of screen */ 795 terminal_tputs(el, Str(T_cd), Val(T_li)); 796 } else { 797 terminal__putc(el, '\r'); 798 terminal__putc(el, '\n'); 799 } 800 } 801 802 803 /* terminal_beep(): 804 * Beep the way the terminal wants us 805 */ 806 libedit_private void 807 terminal_beep(EditLine *el) 808 { 809 if (GoodStr(T_bl)) 810 /* what termcap says we should use */ 811 terminal_tputs(el, Str(T_bl), 1); 812 else 813 terminal__putc(el, '\007'); /* an ASCII bell; ^G */ 814 } 815 816 817 libedit_private void 818 terminal_get(EditLine *el, const char **term) 819 { 820 *term = el->el_terminal.t_name; 821 } 822 823 824 /* terminal_set(): 825 * Read in the terminal capabilities from the requested terminal 826 */ 827 libedit_private int 828 terminal_set(EditLine *el, const char *term) 829 { 830 int i; 831 char buf[TC_BUFSIZE]; 832 char *area; 833 const struct termcapstr *t; 834 sigset_t oset, nset; 835 int lins, cols; 836 837 (void) sigemptyset(&nset); 838 (void) sigaddset(&nset, SIGWINCH); 839 (void) sigprocmask(SIG_BLOCK, &nset, &oset); 840 841 area = buf; 842 843 844 if (term == NULL) 845 term = getenv("TERM"); 846 847 if (!term || !term[0]) 848 term = "dumb"; 849 850 if (strcmp(term, "emacs") == 0) 851 el->el_flags |= EDIT_DISABLED; 852 853 (void) memset(el->el_terminal.t_cap, 0, TC_BUFSIZE); 854 855 i = tgetent(el->el_terminal.t_cap, term); 856 857 if (i <= 0) { 858 if (i == -1) 859 (void) fprintf(el->el_errfile, 860 "Cannot read termcap database;\n"); 861 else if (i == 0) 862 (void) fprintf(el->el_errfile, 863 "No entry for terminal type \"%s\";\n", term); 864 (void) fprintf(el->el_errfile, 865 "using dumb terminal settings.\n"); 866 Val(T_co) = 80; /* do a dumb terminal */ 867 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 868 Val(T_xt) = Val(T_MT); 869 for (t = tstr; t->name != NULL; t++) 870 terminal_alloc(el, t, NULL); 871 } else { 872 /* auto/magic margins */ 873 Val(T_am) = tgetflag("am"); 874 Val(T_xn) = tgetflag("xn"); 875 /* Can we tab */ 876 Val(T_pt) = tgetflag("pt"); 877 Val(T_xt) = tgetflag("xt"); 878 /* do we have a meta? */ 879 Val(T_km) = tgetflag("km"); 880 Val(T_MT) = tgetflag("MT"); 881 /* Get the size */ 882 Val(T_co) = tgetnum("co"); 883 Val(T_li) = tgetnum("li"); 884 for (t = tstr; t->name != NULL; t++) { 885 /* XXX: some systems' tgetstr needs non const */ 886 terminal_alloc(el, t, tgetstr(strchr(t->name, *t->name), 887 &area)); 888 } 889 } 890 891 if (Val(T_co) < 2) 892 Val(T_co) = 80; /* just in case */ 893 if (Val(T_li) < 1) 894 Val(T_li) = 24; 895 896 el->el_terminal.t_size.v = Val(T_co); 897 el->el_terminal.t_size.h = Val(T_li); 898 899 terminal_setflags(el); 900 901 /* get the correct window size */ 902 (void) terminal_get_size(el, &lins, &cols); 903 if (terminal_change_size(el, lins, cols) == -1) 904 return -1; 905 (void) sigprocmask(SIG_SETMASK, &oset, NULL); 906 terminal_bind_arrow(el); 907 el->el_terminal.t_name = term; 908 return i <= 0 ? -1 : 0; 909 } 910 911 912 /* terminal_get_size(): 913 * Return the new window size in lines and cols, and 914 * true if the size was changed. 915 */ 916 libedit_private int 917 terminal_get_size(EditLine *el, int *lins, int *cols) 918 { 919 920 *cols = Val(T_co); 921 *lins = Val(T_li); 922 923 #ifdef TIOCGWINSZ 924 { 925 struct winsize ws; 926 if (ioctl(el->el_infd, TIOCGWINSZ, &ws) != -1) { 927 if (ws.ws_col) 928 *cols = ws.ws_col; 929 if (ws.ws_row) 930 *lins = ws.ws_row; 931 } 932 } 933 #endif 934 #ifdef TIOCGSIZE 935 { 936 struct ttysize ts; 937 if (ioctl(el->el_infd, TIOCGSIZE, &ts) != -1) { 938 if (ts.ts_cols) 939 *cols = ts.ts_cols; 940 if (ts.ts_lines) 941 *lins = ts.ts_lines; 942 } 943 } 944 #endif 945 return Val(T_co) != *cols || Val(T_li) != *lins; 946 } 947 948 949 /* terminal_change_size(): 950 * Change the size of the terminal 951 */ 952 libedit_private int 953 terminal_change_size(EditLine *el, int lins, int cols) 954 { 955 coord_t cur = el->el_cursor; 956 /* 957 * Just in case 958 */ 959 Val(T_co) = (cols < 2) ? 80 : cols; 960 Val(T_li) = (lins < 1) ? 24 : lins; 961 962 /* re-make display buffers */ 963 if (terminal_rebuffer_display(el) == -1) 964 return -1; 965 re_clear_display(el); 966 el->el_cursor = cur; 967 return 0; 968 } 969 970 971 /* terminal_init_arrow(): 972 * Initialize the arrow key bindings from termcap 973 */ 974 static void 975 terminal_init_arrow(EditLine *el) 976 { 977 funckey_t *arrow = el->el_terminal.t_fkey; 978 979 arrow[A_K_DN].name = L"down"; 980 arrow[A_K_DN].key = T_kd; 981 arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; 982 arrow[A_K_DN].type = XK_CMD; 983 984 arrow[A_K_UP].name = L"up"; 985 arrow[A_K_UP].key = T_ku; 986 arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; 987 arrow[A_K_UP].type = XK_CMD; 988 989 arrow[A_K_LT].name = L"left"; 990 arrow[A_K_LT].key = T_kl; 991 arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; 992 arrow[A_K_LT].type = XK_CMD; 993 994 arrow[A_K_RT].name = L"right"; 995 arrow[A_K_RT].key = T_kr; 996 arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; 997 arrow[A_K_RT].type = XK_CMD; 998 999 arrow[A_K_HO].name = L"home"; 1000 arrow[A_K_HO].key = T_kh; 1001 arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; 1002 arrow[A_K_HO].type = XK_CMD; 1003 1004 arrow[A_K_EN].name = L"end"; 1005 arrow[A_K_EN].key = T_at7; 1006 arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; 1007 arrow[A_K_EN].type = XK_CMD; 1008 1009 arrow[A_K_DE].name = L"delete"; 1010 arrow[A_K_DE].key = T_kD; 1011 arrow[A_K_DE].fun.cmd = ED_DELETE_NEXT_CHAR; 1012 arrow[A_K_DE].type = XK_CMD; 1013 } 1014 1015 1016 /* terminal_reset_arrow(): 1017 * Reset arrow key bindings 1018 */ 1019 static void 1020 terminal_reset_arrow(EditLine *el) 1021 { 1022 funckey_t *arrow = el->el_terminal.t_fkey; 1023 static const wchar_t strA[] = L"\033[A"; 1024 static const wchar_t strB[] = L"\033[B"; 1025 static const wchar_t strC[] = L"\033[C"; 1026 static const wchar_t strD[] = L"\033[D"; 1027 static const wchar_t strH[] = L"\033[H"; 1028 static const wchar_t strF[] = L"\033[F"; 1029 static const wchar_t stOA[] = L"\033OA"; 1030 static const wchar_t stOB[] = L"\033OB"; 1031 static const wchar_t stOC[] = L"\033OC"; 1032 static const wchar_t stOD[] = L"\033OD"; 1033 static const wchar_t stOH[] = L"\033OH"; 1034 static const wchar_t stOF[] = L"\033OF"; 1035 1036 keymacro_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1037 keymacro_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1038 keymacro_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1039 keymacro_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1040 keymacro_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1041 keymacro_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1042 keymacro_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1043 keymacro_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1044 keymacro_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1045 keymacro_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1046 keymacro_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1047 keymacro_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1048 1049 if (el->el_map.type != MAP_VI) 1050 return; 1051 keymacro_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1052 keymacro_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1053 keymacro_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1054 keymacro_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1055 keymacro_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1056 keymacro_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1057 keymacro_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1058 keymacro_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1059 keymacro_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1060 keymacro_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1061 keymacro_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1062 keymacro_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1063 } 1064 1065 1066 /* terminal_set_arrow(): 1067 * Set an arrow key binding 1068 */ 1069 libedit_private int 1070 terminal_set_arrow(EditLine *el, const wchar_t *name, keymacro_value_t *fun, 1071 int type) 1072 { 1073 funckey_t *arrow = el->el_terminal.t_fkey; 1074 int i; 1075 1076 for (i = 0; i < A_K_NKEYS; i++) 1077 if (wcscmp(name, arrow[i].name) == 0) { 1078 arrow[i].fun = *fun; 1079 arrow[i].type = type; 1080 return 0; 1081 } 1082 return -1; 1083 } 1084 1085 1086 /* terminal_clear_arrow(): 1087 * Clear an arrow key binding 1088 */ 1089 libedit_private int 1090 terminal_clear_arrow(EditLine *el, const wchar_t *name) 1091 { 1092 funckey_t *arrow = el->el_terminal.t_fkey; 1093 int i; 1094 1095 for (i = 0; i < A_K_NKEYS; i++) 1096 if (wcscmp(name, arrow[i].name) == 0) { 1097 arrow[i].type = XK_NOD; 1098 return 0; 1099 } 1100 return -1; 1101 } 1102 1103 1104 /* terminal_print_arrow(): 1105 * Print the arrow key bindings 1106 */ 1107 libedit_private void 1108 terminal_print_arrow(EditLine *el, const wchar_t *name) 1109 { 1110 int i; 1111 funckey_t *arrow = el->el_terminal.t_fkey; 1112 1113 for (i = 0; i < A_K_NKEYS; i++) 1114 if (*name == '\0' || wcscmp(name, arrow[i].name) == 0) 1115 if (arrow[i].type != XK_NOD) 1116 keymacro_kprint(el, arrow[i].name, 1117 &arrow[i].fun, arrow[i].type); 1118 } 1119 1120 1121 /* terminal_bind_arrow(): 1122 * Bind the arrow keys 1123 */ 1124 libedit_private void 1125 terminal_bind_arrow(EditLine *el) 1126 { 1127 el_action_t *map; 1128 const el_action_t *dmap; 1129 int i, j; 1130 char *p; 1131 funckey_t *arrow = el->el_terminal.t_fkey; 1132 1133 /* Check if the components needed are initialized */ 1134 if (el->el_terminal.t_buf == NULL || el->el_map.key == NULL) 1135 return; 1136 1137 map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; 1138 dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; 1139 1140 terminal_reset_arrow(el); 1141 1142 for (i = 0; i < A_K_NKEYS; i++) { 1143 wchar_t wt_str[VISUAL_WIDTH_MAX]; 1144 wchar_t *px; 1145 size_t n; 1146 1147 p = el->el_terminal.t_str[arrow[i].key]; 1148 if (!p || !*p) 1149 continue; 1150 for (n = 0; n < VISUAL_WIDTH_MAX && p[n]; ++n) 1151 wt_str[n] = p[n]; 1152 while (n < VISUAL_WIDTH_MAX) 1153 wt_str[n++] = '\0'; 1154 px = wt_str; 1155 j = (unsigned char) *p; 1156 /* 1157 * Assign the arrow keys only if: 1158 * 1159 * 1. They are multi-character arrow keys and the user 1160 * has not re-assigned the leading character, or 1161 * has re-assigned the leading character to be 1162 * ED_SEQUENCE_LEAD_IN 1163 * 2. They are single arrow keys pointing to an 1164 * unassigned key. 1165 */ 1166 if (arrow[i].type == XK_NOD) 1167 keymacro_clear(el, map, px); 1168 else { 1169 if (p[1] && (dmap[j] == map[j] || 1170 map[j] == ED_SEQUENCE_LEAD_IN)) { 1171 keymacro_add(el, px, &arrow[i].fun, 1172 arrow[i].type); 1173 map[j] = ED_SEQUENCE_LEAD_IN; 1174 } else if (map[j] == ED_UNASSIGNED) { 1175 keymacro_clear(el, map, px); 1176 if (arrow[i].type == XK_CMD) 1177 map[j] = arrow[i].fun.cmd; 1178 else 1179 keymacro_add(el, px, &arrow[i].fun, 1180 arrow[i].type); 1181 } 1182 } 1183 } 1184 } 1185 1186 /* terminal_putc(): 1187 * Add a character 1188 */ 1189 static int 1190 terminal_putc(int c) 1191 { 1192 if (terminal_outfile == NULL) 1193 return -1; 1194 return fputc(c, terminal_outfile); 1195 } 1196 1197 static void 1198 terminal_tputs(EditLine *el, const char *cap, int affcnt) 1199 { 1200 #ifdef _REENTRANT 1201 pthread_mutex_lock(&terminal_mutex); 1202 #endif 1203 terminal_outfile = el->el_outfile; 1204 (void)tputs(cap, affcnt, terminal_putc); 1205 #ifdef _REENTRANT 1206 pthread_mutex_unlock(&terminal_mutex); 1207 #endif 1208 } 1209 1210 /* terminal__putc(): 1211 * Add a character 1212 */ 1213 libedit_private int 1214 terminal__putc(EditLine *el, wint_t c) 1215 { 1216 char buf[MB_LEN_MAX +1]; 1217 ssize_t i; 1218 if (c == MB_FILL_CHAR) 1219 return 0; 1220 if (c & EL_LITERAL) 1221 return fputs(literal_get(el, c), el->el_outfile); 1222 i = ct_encode_char(buf, (size_t)MB_LEN_MAX, c); 1223 if (i <= 0) 1224 return (int)i; 1225 buf[i] = '\0'; 1226 return fputs(buf, el->el_outfile); 1227 } 1228 1229 /* terminal__flush(): 1230 * Flush output 1231 */ 1232 libedit_private void 1233 terminal__flush(EditLine *el) 1234 { 1235 1236 (void) fflush(el->el_outfile); 1237 } 1238 1239 /* terminal_writec(): 1240 * Write the given character out, in a human readable form 1241 */ 1242 libedit_private void 1243 terminal_writec(EditLine *el, wint_t c) 1244 { 1245 wchar_t visbuf[VISUAL_WIDTH_MAX +1]; 1246 ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c); 1247 if (vcnt < 0) 1248 vcnt = 0; 1249 visbuf[vcnt] = '\0'; 1250 terminal_overwrite(el, visbuf, (size_t)vcnt); 1251 terminal__flush(el); 1252 } 1253 1254 1255 /* terminal_telltc(): 1256 * Print the current termcap characteristics 1257 */ 1258 libedit_private int 1259 /*ARGSUSED*/ 1260 terminal_telltc(EditLine *el, int argc __attribute__((__unused__)), 1261 const wchar_t **argv __attribute__((__unused__))) 1262 { 1263 const struct termcapstr *t; 1264 char **ts; 1265 1266 (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); 1267 (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); 1268 (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", 1269 Val(T_co), Val(T_li)); 1270 (void) fprintf(el->el_outfile, 1271 "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); 1272 (void) fprintf(el->el_outfile, 1273 "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); 1274 (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 1275 EL_HAS_AUTO_MARGINS ? "has" : "does not have"); 1276 if (EL_HAS_AUTO_MARGINS) 1277 (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 1278 EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); 1279 1280 for (t = tstr, ts = el->el_terminal.t_str; t->name != NULL; t++, ts++) { 1281 const char *ub; 1282 if (*ts && **ts) { 1283 ub = ct_encode_string(ct_visual_string( 1284 ct_decode_string(*ts, &el->el_scratch), 1285 &el->el_visual), &el->el_scratch); 1286 } else { 1287 ub = "(empty)"; 1288 } 1289 (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", 1290 t->long_name, t->name, ub); 1291 } 1292 (void) fputc('\n', el->el_outfile); 1293 return 0; 1294 } 1295 1296 1297 /* terminal_settc(): 1298 * Change the current terminal characteristics 1299 */ 1300 libedit_private int 1301 /*ARGSUSED*/ 1302 terminal_settc(EditLine *el, int argc __attribute__((__unused__)), 1303 const wchar_t **argv) 1304 { 1305 const struct termcapstr *ts; 1306 const struct termcapval *tv; 1307 char what[8], how[8]; 1308 long i; 1309 char *ep; 1310 1311 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1312 return -1; 1313 1314 strlcpy(what, ct_encode_string(argv[1], &el->el_scratch), sizeof(what)); 1315 strlcpy(how, ct_encode_string(argv[2], &el->el_scratch), sizeof(how)); 1316 1317 /* 1318 * Do the strings first 1319 */ 1320 for (ts = tstr; ts->name != NULL; ts++) 1321 if (strcmp(ts->name, what) == 0) 1322 break; 1323 1324 if (ts->name != NULL) { 1325 terminal_alloc(el, ts, how); 1326 terminal_setflags(el); 1327 return 0; 1328 } 1329 /* 1330 * Do the numeric ones second 1331 */ 1332 for (tv = tval; tv->name != NULL; tv++) 1333 if (strcmp(tv->name, what) == 0) 1334 break; 1335 1336 if (tv->name == NULL) { 1337 (void) fprintf(el->el_errfile, 1338 "%ls: Bad capability `%s'.\n", argv[0], what); 1339 return -1; 1340 } 1341 1342 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1343 tv == &tval[T_am] || tv == &tval[T_xn]) { 1344 /* 1345 * Booleans 1346 */ 1347 if (strcmp(how, "yes") == 0) 1348 el->el_terminal.t_val[tv - tval] = 1; 1349 else if (strcmp(how, "no") == 0) 1350 el->el_terminal.t_val[tv - tval] = 0; 1351 else { 1352 (void) fprintf(el->el_errfile, 1353 "%ls: Bad value `%s'.\n", argv[0], how); 1354 return -1; 1355 } 1356 terminal_setflags(el); 1357 return 0; 1358 } 1359 1360 /* 1361 * Numerics 1362 */ 1363 i = strtol(how, &ep, 10); 1364 if (*ep != '\0') { 1365 (void) fprintf(el->el_errfile, 1366 "%ls: Bad value `%s'.\n", argv[0], how); 1367 return -1; 1368 } 1369 el->el_terminal.t_val[tv - tval] = (int) i; 1370 i = 0; 1371 if (tv == &tval[T_co]) { 1372 el->el_terminal.t_size.v = Val(T_co); 1373 i++; 1374 } else if (tv == &tval[T_li]) { 1375 el->el_terminal.t_size.h = Val(T_li); 1376 i++; 1377 } 1378 if (i && terminal_change_size(el, Val(T_li), Val(T_co)) == -1) 1379 return -1; 1380 return 0; 1381 } 1382 1383 1384 /* terminal_gettc(): 1385 * Get the current terminal characteristics 1386 */ 1387 libedit_private int 1388 /*ARGSUSED*/ 1389 terminal_gettc(EditLine *el, int argc __attribute__((__unused__)), char **argv) 1390 { 1391 const struct termcapstr *ts; 1392 const struct termcapval *tv; 1393 char *what; 1394 void *how; 1395 1396 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1397 return -1; 1398 1399 what = argv[1]; 1400 how = argv[2]; 1401 1402 /* 1403 * Do the strings first 1404 */ 1405 for (ts = tstr; ts->name != NULL; ts++) 1406 if (strcmp(ts->name, what) == 0) 1407 break; 1408 1409 if (ts->name != NULL) { 1410 *(char **)how = el->el_terminal.t_str[ts - tstr]; 1411 return 0; 1412 } 1413 /* 1414 * Do the numeric ones second 1415 */ 1416 for (tv = tval; tv->name != NULL; tv++) 1417 if (strcmp(tv->name, what) == 0) 1418 break; 1419 1420 if (tv->name == NULL) 1421 return -1; 1422 1423 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1424 tv == &tval[T_am] || tv == &tval[T_xn]) { 1425 static char yes[] = "yes"; 1426 static char no[] = "no"; 1427 if (el->el_terminal.t_val[tv - tval]) 1428 *(char **)how = yes; 1429 else 1430 *(char **)how = no; 1431 return 0; 1432 } else { 1433 *(int *)how = el->el_terminal.t_val[tv - tval]; 1434 return 0; 1435 } 1436 } 1437 1438 /* terminal_echotc(): 1439 * Print the termcap string out with variable substitution 1440 */ 1441 libedit_private int 1442 /*ARGSUSED*/ 1443 terminal_echotc(EditLine *el, int argc __attribute__((__unused__)), 1444 const wchar_t **argv) 1445 { 1446 char *cap, *scap; 1447 wchar_t *ep; 1448 int arg_need, arg_cols, arg_rows; 1449 int verbose = 0, silent = 0; 1450 char *area; 1451 static const char fmts[] = "%s\n", fmtd[] = "%d\n"; 1452 const struct termcapstr *t; 1453 char buf[TC_BUFSIZE]; 1454 long i; 1455 1456 area = buf; 1457 1458 if (argv == NULL || argv[1] == NULL) 1459 return -1; 1460 argv++; 1461 1462 if (argv[0][0] == '-') { 1463 switch (argv[0][1]) { 1464 case 'v': 1465 verbose = 1; 1466 break; 1467 case 's': 1468 silent = 1; 1469 break; 1470 default: 1471 /* stderror(ERR_NAME | ERR_TCUSAGE); */ 1472 break; 1473 } 1474 argv++; 1475 } 1476 if (!*argv || *argv[0] == '\0') 1477 return 0; 1478 if (wcscmp(*argv, L"tabs") == 0) { 1479 (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); 1480 return 0; 1481 } else if (wcscmp(*argv, L"meta") == 0) { 1482 (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); 1483 return 0; 1484 } else if (wcscmp(*argv, L"xn") == 0) { 1485 (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? 1486 "yes" : "no"); 1487 return 0; 1488 } else if (wcscmp(*argv, L"am") == 0) { 1489 (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? 1490 "yes" : "no"); 1491 return 0; 1492 } else if (wcscmp(*argv, L"baud") == 0) { 1493 (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); 1494 return 0; 1495 } else if (wcscmp(*argv, L"rows") == 0 || 1496 wcscmp(*argv, L"lines") == 0) { 1497 (void) fprintf(el->el_outfile, fmtd, Val(T_li)); 1498 return 0; 1499 } else if (wcscmp(*argv, L"cols") == 0) { 1500 (void) fprintf(el->el_outfile, fmtd, Val(T_co)); 1501 return 0; 1502 } 1503 /* 1504 * Try to use our local definition first 1505 */ 1506 scap = NULL; 1507 for (t = tstr; t->name != NULL; t++) 1508 if (strcmp(t->name, 1509 ct_encode_string(*argv, &el->el_scratch)) == 0) { 1510 scap = el->el_terminal.t_str[t - tstr]; 1511 break; 1512 } 1513 if (t->name == NULL) { 1514 /* XXX: some systems' tgetstr needs non const */ 1515 scap = tgetstr(ct_encode_string(*argv, &el->el_scratch), &area); 1516 } 1517 if (!scap || scap[0] == '\0') { 1518 if (!silent) 1519 (void) fprintf(el->el_errfile, 1520 "echotc: Termcap parameter `%ls' not found.\n", 1521 *argv); 1522 return -1; 1523 } 1524 /* 1525 * Count home many values we need for this capability. 1526 */ 1527 for (cap = scap, arg_need = 0; *cap; cap++) 1528 if (*cap == '%') 1529 switch (*++cap) { 1530 case 'd': 1531 case '2': 1532 case '3': 1533 case '.': 1534 case '+': 1535 arg_need++; 1536 break; 1537 case '%': 1538 case '>': 1539 case 'i': 1540 case 'r': 1541 case 'n': 1542 case 'B': 1543 case 'D': 1544 break; 1545 default: 1546 /* 1547 * hpux has lot's of them... 1548 */ 1549 if (verbose) 1550 (void) fprintf(el->el_errfile, 1551 "echotc: Warning: unknown termcap %% `%c'.\n", 1552 *cap); 1553 /* This is bad, but I won't complain */ 1554 break; 1555 } 1556 1557 switch (arg_need) { 1558 case 0: 1559 argv++; 1560 if (*argv && *argv[0]) { 1561 if (!silent) 1562 (void) fprintf(el->el_errfile, 1563 "echotc: Warning: Extra argument `%ls'.\n", 1564 *argv); 1565 return -1; 1566 } 1567 terminal_tputs(el, scap, 1); 1568 break; 1569 case 1: 1570 argv++; 1571 if (!*argv || *argv[0] == '\0') { 1572 if (!silent) 1573 (void) fprintf(el->el_errfile, 1574 "echotc: Warning: Missing argument.\n"); 1575 return -1; 1576 } 1577 arg_cols = 0; 1578 i = wcstol(*argv, &ep, 10); 1579 if (*ep != '\0' || i < 0) { 1580 if (!silent) 1581 (void) fprintf(el->el_errfile, 1582 "echotc: Bad value `%ls' for rows.\n", 1583 *argv); 1584 return -1; 1585 } 1586 arg_rows = (int) i; 1587 argv++; 1588 if (*argv && *argv[0]) { 1589 if (!silent) 1590 (void) fprintf(el->el_errfile, 1591 "echotc: Warning: Extra argument `%ls" 1592 "'.\n", *argv); 1593 return -1; 1594 } 1595 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), 1); 1596 break; 1597 default: 1598 /* This is wrong, but I will ignore it... */ 1599 if (verbose) 1600 (void) fprintf(el->el_errfile, 1601 "echotc: Warning: Too many required arguments (%d).\n", 1602 arg_need); 1603 /* FALLTHROUGH */ 1604 case 2: 1605 argv++; 1606 if (!*argv || *argv[0] == '\0') { 1607 if (!silent) 1608 (void) fprintf(el->el_errfile, 1609 "echotc: Warning: Missing argument.\n"); 1610 return -1; 1611 } 1612 i = wcstol(*argv, &ep, 10); 1613 if (*ep != '\0' || i < 0) { 1614 if (!silent) 1615 (void) fprintf(el->el_errfile, 1616 "echotc: Bad value `%ls' for cols.\n", 1617 *argv); 1618 return -1; 1619 } 1620 arg_cols = (int) i; 1621 argv++; 1622 if (!*argv || *argv[0] == '\0') { 1623 if (!silent) 1624 (void) fprintf(el->el_errfile, 1625 "echotc: Warning: Missing argument.\n"); 1626 return -1; 1627 } 1628 i = wcstol(*argv, &ep, 10); 1629 if (*ep != '\0' || i < 0) { 1630 if (!silent) 1631 (void) fprintf(el->el_errfile, 1632 "echotc: Bad value `%ls' for rows.\n", 1633 *argv); 1634 return -1; 1635 } 1636 arg_rows = (int) i; 1637 if (*ep != '\0') { 1638 if (!silent) 1639 (void) fprintf(el->el_errfile, 1640 "echotc: Bad value `%ls'.\n", *argv); 1641 return -1; 1642 } 1643 argv++; 1644 if (*argv && *argv[0]) { 1645 if (!silent) 1646 (void) fprintf(el->el_errfile, 1647 "echotc: Warning: Extra argument `%ls" 1648 "'.\n", *argv); 1649 return -1; 1650 } 1651 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows); 1652 break; 1653 } 1654 return 0; 1655 } 1656