1 /* $OpenBSD: terminal.c,v 1.19 2019/08/07 04:22:16 yasuoka Exp $ */ 2 /* $NetBSD: terminal.c,v 1.17 2016/02/15 15:35:03 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Christos Zoulas of Cornell University. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "config.h" 37 38 /* 39 * terminal.c: Editor/termcap-curses interface 40 * We have to declare a static variable here, since the 41 * termcap putchar routine does not take an argument! 42 */ 43 #include <sys/types.h> 44 #include <sys/ioctl.h> 45 #include <limits.h> 46 #include <signal.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 #ifdef HAVE_TERMCAP_H 52 #include <termcap.h> 53 #endif 54 #ifdef HAVE_CURSES_H 55 #include <curses.h> 56 #elif HAVE_NCURSES_H 57 #include <ncurses.h> 58 #endif 59 /* Solaris's term.h does horrid things. */ 60 61 #if defined(HAVE_TERM_H) && !defined(__sun) 62 #include <term.h> 63 #endif 64 65 #ifdef _REENTRANT 66 #include <pthread.h> 67 #endif 68 69 #include "el.h" 70 #include "fcns.h" 71 72 /* 73 * IMPORTANT NOTE: these routines are allowed to look at the current screen 74 * and the current position assuming that it is correct. If this is not 75 * true, then the update will be WRONG! This is (should be) a valid 76 * assumption... 77 */ 78 79 #define TC_BUFSIZE 2048 80 81 #define GoodStr(a) (el->el_terminal.t_str[a] != NULL && \ 82 el->el_terminal.t_str[a][0] != '\0') 83 #define Str(a) el->el_terminal.t_str[a] 84 #define Val(a) el->el_terminal.t_val[a] 85 86 static const struct termcapstr { 87 const char *name; 88 const char *long_name; 89 } tstr[] = { 90 #define T_al 0 91 { "al", "add new blank line" }, 92 #define T_bl 1 93 { "bl", "audible bell" }, 94 #define T_cd 2 95 { "cd", "clear to bottom" }, 96 #define T_ce 3 97 { "ce", "clear to end of line" }, 98 #define T_ch 4 99 { "ch", "cursor to horiz pos" }, 100 #define T_cl 5 101 { "cl", "clear screen" }, 102 #define T_dc 6 103 { "dc", "delete a character" }, 104 #define T_dl 7 105 { "dl", "delete a line" }, 106 #define T_dm 8 107 { "dm", "start delete mode" }, 108 #define T_ed 9 109 { "ed", "end delete mode" }, 110 #define T_ei 10 111 { "ei", "end insert mode" }, 112 #define T_fs 11 113 { "fs", "cursor from status line" }, 114 #define T_ho 12 115 { "ho", "home cursor" }, 116 #define T_ic 13 117 { "ic", "insert character" }, 118 #define T_im 14 119 { "im", "start insert mode" }, 120 #define T_ip 15 121 { "ip", "insert padding" }, 122 #define T_kd 16 123 { "kd", "sends cursor down" }, 124 #define T_kl 17 125 { "kl", "sends cursor left" }, 126 #define T_kr 18 127 { "kr", "sends cursor right" }, 128 #define T_ku 19 129 { "ku", "sends cursor up" }, 130 #define T_md 20 131 { "md", "begin bold" }, 132 #define T_me 21 133 { "me", "end attributes" }, 134 #define T_nd 22 135 { "nd", "non destructive space" }, 136 #define T_se 23 137 { "se", "end standout" }, 138 #define T_so 24 139 { "so", "begin standout" }, 140 #define T_ts 25 141 { "ts", "cursor to status line" }, 142 #define T_up 26 143 { "up", "cursor up one" }, 144 #define T_us 27 145 { "us", "begin underline" }, 146 #define T_ue 28 147 { "ue", "end underline" }, 148 #define T_vb 29 149 { "vb", "visible bell" }, 150 #define T_DC 30 151 { "DC", "delete multiple chars" }, 152 #define T_DO 31 153 { "DO", "cursor down multiple" }, 154 #define T_IC 32 155 { "IC", "insert multiple chars" }, 156 #define T_LE 33 157 { "LE", "cursor left multiple" }, 158 #define T_RI 34 159 { "RI", "cursor right multiple" }, 160 #define T_UP 35 161 { "UP", "cursor up multiple" }, 162 #define T_kh 36 163 { "kh", "send cursor home" }, 164 #define T_at7 37 165 { "@7", "send cursor end" }, 166 #define T_str 38 167 { NULL, NULL } 168 }; 169 170 static const struct termcapval { 171 const char *name; 172 const char *long_name; 173 } tval[] = { 174 #define T_am 0 175 { "am", "has automatic margins" }, 176 #define T_pt 1 177 { "pt", "has physical tabs" }, 178 #define T_li 2 179 { "li", "Number of lines" }, 180 #define T_co 3 181 { "co", "Number of columns" }, 182 #define T_km 4 183 { "km", "Has meta key" }, 184 #define T_xt 5 185 { "xt", "Tab chars destructive" }, 186 #define T_xn 6 187 { "xn", "newline ignored at right margin" }, 188 #define T_MT 7 189 { "MT", "Has meta key" }, /* XXX? */ 190 #define T_val 8 191 { NULL, NULL, } 192 }; 193 /* do two or more of the attributes use me */ 194 195 static void terminal_setflags(EditLine *); 196 static int terminal_rebuffer_display(EditLine *); 197 static void terminal_free_display(EditLine *); 198 static int terminal_alloc_display(EditLine *); 199 static void terminal_alloc(EditLine *, const struct termcapstr *, 200 const char *); 201 static void terminal_init_arrow(EditLine *); 202 static void terminal_reset_arrow(EditLine *); 203 static int terminal_putc(int); 204 static void terminal_tputs(EditLine *, const char *, int); 205 206 #ifdef _REENTRANT 207 static pthread_mutex_t terminal_mutex = PTHREAD_MUTEX_INITIALIZER; 208 #endif 209 static FILE *terminal_outfile = NULL; 210 211 212 /* terminal_setflags(): 213 * Set the terminal capability flags 214 */ 215 static void 216 terminal_setflags(EditLine *el) 217 { 218 EL_FLAGS = 0; 219 if (el->el_tty.t_tabs) 220 EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; 221 222 EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; 223 EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; 224 EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; 225 EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? 226 TERM_CAN_INSERT : 0; 227 EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; 228 EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; 229 EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; 230 231 if (GoodStr(T_me) && GoodStr(T_ue)) 232 EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? 233 TERM_CAN_ME : 0; 234 else 235 EL_FLAGS &= ~TERM_CAN_ME; 236 if (GoodStr(T_me) && GoodStr(T_se)) 237 EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? 238 TERM_CAN_ME : 0; 239 240 241 #ifdef DEBUG_SCREEN 242 if (!EL_CAN_UP) { 243 (void) fprintf(el->el_errfile, 244 "WARNING: Your terminal cannot move up.\n"); 245 (void) fprintf(el->el_errfile, 246 "Editing may be odd for long lines.\n"); 247 } 248 if (!EL_CAN_CEOL) 249 (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); 250 if (!EL_CAN_DELETE) 251 (void) fprintf(el->el_errfile, "no delete char capability.\n"); 252 if (!EL_CAN_INSERT) 253 (void) fprintf(el->el_errfile, "no insert char capability.\n"); 254 #endif /* DEBUG_SCREEN */ 255 } 256 257 /* terminal_init(): 258 * Initialize the terminal stuff 259 */ 260 protected int 261 terminal_init(EditLine *el) 262 { 263 264 el->el_terminal.t_buf = (char *)malloc(TC_BUFSIZE); 265 if (el->el_terminal.t_buf == NULL) 266 goto fail1; 267 el->el_terminal.t_cap = (char *)malloc(TC_BUFSIZE); 268 if (el->el_terminal.t_cap == NULL) 269 goto fail2; 270 el->el_terminal.t_fkey = reallocarray(NULL, A_K_NKEYS, 271 sizeof(*el->el_terminal.t_fkey)); 272 if (el->el_terminal.t_fkey == NULL) 273 goto fail3; 274 el->el_terminal.t_loc = 0; 275 el->el_terminal.t_str = calloc(T_str, sizeof(char *)); 276 if (el->el_terminal.t_str == NULL) 277 goto fail4; 278 el->el_terminal.t_val = calloc(T_val, sizeof(int)); 279 if (el->el_terminal.t_val == NULL) 280 goto fail5; 281 (void) terminal_set(el, NULL); 282 terminal_init_arrow(el); 283 return 0; 284 fail5: 285 free(el->el_terminal.t_str); 286 el->el_terminal.t_str = NULL; 287 fail4: 288 free(el->el_terminal.t_fkey); 289 el->el_terminal.t_fkey = NULL; 290 fail3: 291 free(el->el_terminal.t_cap); 292 el->el_terminal.t_cap = NULL; 293 fail2: 294 free(el->el_terminal.t_buf); 295 el->el_terminal.t_buf = NULL; 296 fail1: 297 return -1; 298 } 299 300 /* terminal_end(): 301 * Clean up the terminal stuff 302 */ 303 protected void 304 terminal_end(EditLine *el) 305 { 306 307 free(el->el_terminal.t_buf); 308 el->el_terminal.t_buf = NULL; 309 free(el->el_terminal.t_cap); 310 el->el_terminal.t_cap = NULL; 311 el->el_terminal.t_loc = 0; 312 free(el->el_terminal.t_str); 313 el->el_terminal.t_str = NULL; 314 free(el->el_terminal.t_val); 315 el->el_terminal.t_val = NULL; 316 free(el->el_terminal.t_fkey); 317 el->el_terminal.t_fkey = NULL; 318 terminal_free_display(el); 319 } 320 321 322 /* terminal_alloc(): 323 * Maintain a string pool for termcap strings 324 */ 325 static void 326 terminal_alloc(EditLine *el, const struct termcapstr *t, const char *cap) 327 { 328 char termbuf[TC_BUFSIZE]; 329 size_t tlen, clen; 330 char **tlist = el->el_terminal.t_str; 331 char **tmp, **str = &tlist[t - tstr]; 332 333 if (cap == NULL || *cap == '\0') { 334 *str = NULL; 335 return; 336 } else 337 clen = strlen(cap); 338 339 tlen = *str == NULL ? 0 : strlen(*str); 340 341 /* 342 * New string is shorter; no need to allocate space 343 */ 344 if (clen <= tlen) { 345 if (*str) 346 (void) strlcpy(*str, cap, tlen + 1); 347 return; 348 } 349 /* 350 * New string is longer; see if we have enough space to append 351 */ 352 if (el->el_terminal.t_loc + 3 < TC_BUFSIZE) { 353 tlen = TC_BUFSIZE - el->el_terminal.t_loc; 354 (void) strlcpy(*str = &el->el_terminal.t_buf[ 355 el->el_terminal.t_loc], cap, tlen); 356 el->el_terminal.t_loc += (int)clen + 1; /* one for \0 */ 357 return; 358 } 359 /* 360 * Compact our buffer; no need to check compaction, cause we know it 361 * fits... 362 */ 363 tlen = 0; 364 for (tmp = tlist; tmp < &tlist[T_str]; tmp++) 365 if (*tmp != NULL && **tmp != '\0' && *tmp != *str) { 366 char *ptr; 367 368 for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) 369 continue; 370 termbuf[tlen++] = '\0'; 371 } 372 memcpy(el->el_terminal.t_buf, termbuf, TC_BUFSIZE); 373 el->el_terminal.t_loc = (int)tlen; 374 if (el->el_terminal.t_loc + 3 >= TC_BUFSIZE) { 375 (void) fprintf(el->el_errfile, 376 "Out of termcap string space.\n"); 377 return; 378 } 379 tlen = TC_BUFSIZE - el->el_terminal.t_loc; 380 (void) strlcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc], 381 cap, tlen); 382 el->el_terminal.t_loc += (int)clen + 1; /* one for \0 */ 383 return; 384 } 385 386 387 /* terminal_rebuffer_display(): 388 * Rebuffer the display after the screen changed size 389 */ 390 static int 391 terminal_rebuffer_display(EditLine *el) 392 { 393 coord_t *c = &el->el_terminal.t_size; 394 395 terminal_free_display(el); 396 397 c->h = Val(T_co); 398 c->v = Val(T_li); 399 400 if (terminal_alloc_display(el) == -1) 401 return -1; 402 return 0; 403 } 404 405 406 /* terminal_alloc_display(): 407 * Allocate a new display. 408 */ 409 static int 410 terminal_alloc_display(EditLine *el) 411 { 412 int i; 413 wchar_t **b; 414 coord_t *c = &el->el_terminal.t_size; 415 416 b = calloc(c->v + 1, sizeof(*b)); 417 if (b == NULL) 418 goto done; 419 for (i = 0; i < c->v; i++) { 420 b[i] = calloc(c->h + 1, sizeof(**b)); 421 if (b[i] == NULL) { 422 while (--i >= 0) 423 free(b[i]); 424 free(b); 425 goto done; 426 } 427 } 428 b[c->v] = NULL; 429 el->el_display = b; 430 431 b = calloc(c->v + 1, sizeof(*b)); 432 if (b == NULL) 433 goto done; 434 for (i = 0; i < c->v; i++) { 435 b[i] = calloc(c->h + 1, sizeof(**b)); 436 if (b[i] == NULL) { 437 while (--i >= 0) 438 free(b[i]); 439 free(b); 440 goto done; 441 } 442 } 443 b[c->v] = NULL; 444 el->el_vdisplay = b; 445 return 0; 446 done: 447 terminal_free_display(el); 448 return -1; 449 } 450 451 452 /* terminal_free_display(): 453 * Free the display buffers 454 */ 455 static void 456 terminal_free_display(EditLine *el) 457 { 458 wchar_t **b; 459 wchar_t **bufp; 460 461 b = el->el_display; 462 el->el_display = NULL; 463 if (b != NULL) { 464 for (bufp = b; *bufp != NULL; bufp++) 465 free(*bufp); 466 free(b); 467 } 468 b = el->el_vdisplay; 469 el->el_vdisplay = NULL; 470 if (b != NULL) { 471 for (bufp = b; *bufp != NULL; bufp++) 472 free(*bufp); 473 free(b); 474 } 475 } 476 477 478 /* terminal_move_to_line(): 479 * move to line <where> (first line == 0) 480 * as efficiently as possible 481 */ 482 protected void 483 terminal_move_to_line(EditLine *el, int where) 484 { 485 int del; 486 487 if (where == el->el_cursor.v) 488 return; 489 490 if (where > el->el_terminal.t_size.v) { 491 #ifdef DEBUG_SCREEN 492 (void) fprintf(el->el_errfile, 493 "terminal_move_to_line: where is ridiculous: %d\r\n", 494 where); 495 #endif /* DEBUG_SCREEN */ 496 return; 497 } 498 if ((del = where - el->el_cursor.v) > 0) { 499 while (del > 0) { 500 if (EL_HAS_AUTO_MARGINS && 501 el->el_display[el->el_cursor.v][0] != '\0') { 502 size_t h = el->el_terminal.t_size.h - 1; 503 for (; h > 0 && 504 el->el_display[el->el_cursor.v][h] == 505 MB_FILL_CHAR; 506 h--) 507 continue; 508 /* move without newline */ 509 terminal_move_to_char(el, (int)h); 510 terminal_overwrite(el, &el->el_display 511 [el->el_cursor.v][el->el_cursor.h], 512 (size_t)(el->el_terminal.t_size.h - 513 el->el_cursor.h)); 514 /* updates Cursor */ 515 del--; 516 } else { 517 if ((del > 1) && GoodStr(T_DO)) { 518 terminal_tputs(el, tgoto(Str(T_DO), del, 519 del), del); 520 del = 0; 521 } else { 522 for (; del > 0; del--) 523 terminal__putc(el, '\n'); 524 /* because the \n will become \r\n */ 525 el->el_cursor.h = 0; 526 } 527 } 528 } 529 } else { /* del < 0 */ 530 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 531 terminal_tputs(el, tgoto(Str(T_UP), -del, -del), -del); 532 else { 533 if (GoodStr(T_up)) 534 for (; del < 0; del++) 535 terminal_tputs(el, Str(T_up), 1); 536 } 537 } 538 el->el_cursor.v = where;/* now where is here */ 539 } 540 541 542 /* terminal_move_to_char(): 543 * Move to the character position specified 544 */ 545 protected void 546 terminal_move_to_char(EditLine *el, int where) 547 { 548 int del, i; 549 550 mc_again: 551 if (where == el->el_cursor.h) 552 return; 553 554 if (where > el->el_terminal.t_size.h) { 555 #ifdef DEBUG_SCREEN 556 (void) fprintf(el->el_errfile, 557 "terminal_move_to_char: where is riduculous: %d\r\n", 558 where); 559 #endif /* DEBUG_SCREEN */ 560 return; 561 } 562 if (!where) { /* if where is first column */ 563 terminal__putc(el, '\r'); /* do a CR */ 564 el->el_cursor.h = 0; 565 return; 566 } 567 del = where - el->el_cursor.h; 568 569 if ((del < -4 || del > 4) && GoodStr(T_ch)) 570 /* go there directly */ 571 terminal_tputs(el, tgoto(Str(T_ch), where, where), where); 572 else { 573 if (del > 0) { /* moving forward */ 574 if ((del > 4) && GoodStr(T_RI)) 575 terminal_tputs(el, tgoto(Str(T_RI), del, del), 576 del); 577 else { 578 /* if I can do tabs, use them */ 579 if (EL_CAN_TAB) { 580 if ((el->el_cursor.h & 0370) != 581 (where & ~0x7) 582 && (el->el_display[ 583 el->el_cursor.v][where & 0370] != 584 MB_FILL_CHAR) 585 ) { 586 /* if not within tab stop */ 587 for (i = 588 (el->el_cursor.h & 0370); 589 i < (where & ~0x7); 590 i += 8) 591 terminal__putc(el, 592 '\t'); 593 /* then tab over */ 594 el->el_cursor.h = where & ~0x7; 595 } 596 } 597 /* 598 * it's usually cheaper to just write the 599 * chars, so we do. 600 */ 601 /* 602 * NOTE THAT terminal_overwrite() WILL CHANGE 603 * el->el_cursor.h!!! 604 */ 605 terminal_overwrite(el, &el->el_display[ 606 el->el_cursor.v][el->el_cursor.h], 607 (size_t)(where - el->el_cursor.h)); 608 609 } 610 } else { /* del < 0 := moving backward */ 611 if ((-del > 4) && GoodStr(T_LE)) 612 terminal_tputs(el, tgoto(Str(T_LE), -del, -del), 613 -del); 614 else { /* can't go directly there */ 615 /* 616 * if the "cost" is greater than the "cost" 617 * from col 0 618 */ 619 if (EL_CAN_TAB ? 620 ((unsigned int)-del > 621 (((unsigned int) where >> 3) + 622 (where & 07))) 623 : (-del > where)) { 624 terminal__putc(el, '\r');/* do a CR */ 625 el->el_cursor.h = 0; 626 goto mc_again; /* and try again */ 627 } 628 for (i = 0; i < -del; i++) 629 terminal__putc(el, '\b'); 630 } 631 } 632 } 633 el->el_cursor.h = where; /* now where is here */ 634 } 635 636 637 /* terminal_overwrite(): 638 * Overstrike num characters 639 * Assumes MB_FILL_CHARs are present to keep the column count correct 640 */ 641 protected void 642 terminal_overwrite(EditLine *el, const wchar_t *cp, size_t n) 643 { 644 if (n == 0) 645 return; 646 647 if (n > (size_t)el->el_terminal.t_size.h) { 648 #ifdef DEBUG_SCREEN 649 (void) fprintf(el->el_errfile, 650 "terminal_overwrite: n is riduculous: %zu\r\n", n); 651 #endif /* DEBUG_SCREEN */ 652 return; 653 } 654 655 do { 656 /* terminal__putc() ignores any MB_FILL_CHARs */ 657 terminal__putc(el, *cp++); 658 el->el_cursor.h++; 659 } while (--n); 660 661 if (el->el_cursor.h >= el->el_terminal.t_size.h) { /* wrap? */ 662 if (EL_HAS_AUTO_MARGINS) { /* yes */ 663 el->el_cursor.h = 0; 664 el->el_cursor.v++; 665 if (EL_HAS_MAGIC_MARGINS) { 666 /* force the wrap to avoid the "magic" 667 * situation */ 668 wchar_t c; 669 if ((c = el->el_display[el->el_cursor.v] 670 [el->el_cursor.h]) != '\0') { 671 terminal_overwrite(el, &c, 1); 672 while (el->el_display[el->el_cursor.v] 673 [el->el_cursor.h] == MB_FILL_CHAR) 674 el->el_cursor.h++; 675 } else { 676 terminal__putc(el, ' '); 677 el->el_cursor.h = 1; 678 } 679 } 680 } else /* no wrap, but cursor stays on screen */ 681 el->el_cursor.h = el->el_terminal.t_size.h - 1; 682 } 683 } 684 685 686 /* terminal_deletechars(): 687 * Delete num characters 688 */ 689 protected void 690 terminal_deletechars(EditLine *el, int num) 691 { 692 if (num <= 0) 693 return; 694 695 if (!EL_CAN_DELETE) { 696 #ifdef DEBUG_EDIT 697 (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); 698 #endif /* DEBUG_EDIT */ 699 return; 700 } 701 if (num > el->el_terminal.t_size.h) { 702 #ifdef DEBUG_SCREEN 703 (void) fprintf(el->el_errfile, 704 "terminal_deletechars: num is riduculous: %d\r\n", num); 705 #endif /* DEBUG_SCREEN */ 706 return; 707 } 708 if (GoodStr(T_DC)) /* if I have multiple delete */ 709 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more 710 * expen. */ 711 terminal_tputs(el, tgoto(Str(T_DC), num, num), num); 712 return; 713 } 714 if (GoodStr(T_dm)) /* if I have delete mode */ 715 terminal_tputs(el, Str(T_dm), 1); 716 717 if (GoodStr(T_dc)) /* else do one at a time */ 718 while (num--) 719 terminal_tputs(el, Str(T_dc), 1); 720 721 if (GoodStr(T_ed)) /* if I have delete mode */ 722 terminal_tputs(el, Str(T_ed), 1); 723 } 724 725 726 /* terminal_insertwrite(): 727 * Puts terminal in insert character mode or inserts num 728 * characters in the line 729 * Assumes MB_FILL_CHARs are present to keep column count correct 730 */ 731 protected void 732 terminal_insertwrite(EditLine *el, wchar_t *cp, int num) 733 { 734 if (num <= 0) 735 return; 736 if (!EL_CAN_INSERT) { 737 #ifdef DEBUG_EDIT 738 (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); 739 #endif /* DEBUG_EDIT */ 740 return; 741 } 742 if (num > el->el_terminal.t_size.h) { 743 #ifdef DEBUG_SCREEN 744 (void) fprintf(el->el_errfile, 745 "StartInsert: num is riduculous: %d\r\n", num); 746 #endif /* DEBUG_SCREEN */ 747 return; 748 } 749 if (GoodStr(T_IC)) /* if I have multiple insert */ 750 if ((num > 1) || !GoodStr(T_ic)) { 751 /* if ic would be more expensive */ 752 terminal_tputs(el, tgoto(Str(T_IC), num, num), num); 753 terminal_overwrite(el, cp, (size_t)num); 754 /* this updates el_cursor.h */ 755 return; 756 } 757 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 758 terminal_tputs(el, Str(T_im), 1); 759 760 el->el_cursor.h += num; 761 do 762 terminal__putc(el, *cp++); 763 while (--num); 764 765 if (GoodStr(T_ip)) /* have to make num chars insert */ 766 terminal_tputs(el, Str(T_ip), 1); 767 768 terminal_tputs(el, Str(T_ei), 1); 769 return; 770 } 771 do { 772 if (GoodStr(T_ic)) /* have to make num chars insert */ 773 terminal_tputs(el, Str(T_ic), 1); 774 775 terminal__putc(el, *cp++); 776 777 el->el_cursor.h++; 778 779 if (GoodStr(T_ip)) /* have to make num chars insert */ 780 terminal_tputs(el, Str(T_ip), 1); 781 /* pad the inserted char */ 782 783 } while (--num); 784 } 785 786 787 /* terminal_clear_EOL(): 788 * clear to end of line. There are num characters to clear 789 */ 790 protected void 791 terminal_clear_EOL(EditLine *el, int num) 792 { 793 int i; 794 795 if (EL_CAN_CEOL && GoodStr(T_ce)) 796 terminal_tputs(el, Str(T_ce), 1); 797 else { 798 for (i = 0; i < num; i++) 799 terminal__putc(el, ' '); 800 el->el_cursor.h += num; /* have written num spaces */ 801 } 802 } 803 804 805 /* terminal_clear_screen(): 806 * Clear the screen 807 */ 808 protected void 809 terminal_clear_screen(EditLine *el) 810 { /* clear the whole screen and home */ 811 812 if (GoodStr(T_cl)) 813 /* send the clear screen code */ 814 terminal_tputs(el, Str(T_cl), Val(T_li)); 815 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 816 terminal_tputs(el, Str(T_ho), Val(T_li)); /* home */ 817 /* clear to bottom of screen */ 818 terminal_tputs(el, Str(T_cd), Val(T_li)); 819 } else { 820 terminal__putc(el, '\r'); 821 terminal__putc(el, '\n'); 822 } 823 } 824 825 826 /* terminal_beep(): 827 * Beep the way the terminal wants us 828 */ 829 protected void 830 terminal_beep(EditLine *el) 831 { 832 if (GoodStr(T_bl)) 833 /* what termcap says we should use */ 834 terminal_tputs(el, Str(T_bl), 1); 835 else 836 terminal__putc(el, '\007'); /* an ASCII bell; ^G */ 837 } 838 839 840 protected void 841 terminal_get(EditLine *el, const char **term) 842 { 843 *term = el->el_terminal.t_name; 844 } 845 846 847 /* terminal_set(): 848 * Read in the terminal capabilities from the requested terminal 849 */ 850 protected int 851 terminal_set(EditLine *el, const char *term) 852 { 853 int i; 854 char buf[TC_BUFSIZE]; 855 char *area; 856 const struct termcapstr *t; 857 sigset_t oset, nset; 858 int lins, cols; 859 860 (void) sigemptyset(&nset); 861 (void) sigaddset(&nset, SIGWINCH); 862 (void) sigprocmask(SIG_BLOCK, &nset, &oset); 863 864 area = buf; 865 866 867 if (term == NULL) 868 term = getenv("TERM"); 869 870 if (!term || !term[0]) 871 term = "dumb"; 872 873 if (strcmp(term, "emacs") == 0) 874 el->el_flags |= EDIT_DISABLED; 875 876 (void) memset(el->el_terminal.t_cap, 0, TC_BUFSIZE); 877 878 i = tgetent(el->el_terminal.t_cap, term); 879 880 if (i <= 0) { 881 if (i == -1) 882 (void) fprintf(el->el_errfile, 883 "Cannot read termcap database;\n"); 884 else if (i == 0) 885 (void) fprintf(el->el_errfile, 886 "No entry for terminal type \"%s\";\n", term); 887 (void) fprintf(el->el_errfile, 888 "using dumb terminal settings.\n"); 889 Val(T_co) = 80; /* do a dumb terminal */ 890 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 891 Val(T_xt) = Val(T_MT); 892 for (t = tstr; t->name != NULL; t++) 893 terminal_alloc(el, t, NULL); 894 } else { 895 /* auto/magic margins */ 896 Val(T_am) = tgetflag("am"); 897 Val(T_xn) = tgetflag("xn"); 898 /* Can we tab */ 899 Val(T_pt) = tgetflag("pt"); 900 Val(T_xt) = tgetflag("xt"); 901 /* do we have a meta? */ 902 Val(T_km) = tgetflag("km"); 903 Val(T_MT) = tgetflag("MT"); 904 /* Get the size */ 905 Val(T_co) = tgetnum("co"); 906 Val(T_li) = tgetnum("li"); 907 for (t = tstr; t->name != NULL; t++) { 908 /* XXX: some systems' tgetstr needs non const */ 909 terminal_alloc(el, t, tgetstr(strchr(t->name, *t->name), 910 &area)); 911 } 912 } 913 914 if (Val(T_co) < 2) 915 Val(T_co) = 80; /* just in case */ 916 if (Val(T_li) < 1) 917 Val(T_li) = 24; 918 919 el->el_terminal.t_size.v = Val(T_co); 920 el->el_terminal.t_size.h = Val(T_li); 921 922 terminal_setflags(el); 923 924 /* get the correct window size */ 925 (void) terminal_get_size(el, &lins, &cols); 926 if (terminal_change_size(el, lins, cols) == -1) 927 return -1; 928 (void) sigprocmask(SIG_SETMASK, &oset, NULL); 929 terminal_bind_arrow(el); 930 el->el_terminal.t_name = term; 931 return i <= 0 ? -1 : 0; 932 } 933 934 935 /* terminal_get_size(): 936 * Return the new window size in lines and cols, and 937 * true if the size was changed. 938 */ 939 protected int 940 terminal_get_size(EditLine *el, int *lins, int *cols) 941 { 942 943 *cols = Val(T_co); 944 *lins = Val(T_li); 945 946 #ifdef TIOCGWINSZ 947 { 948 struct winsize ws; 949 if (ioctl(el->el_infd, TIOCGWINSZ, &ws) != -1) { 950 if (ws.ws_col) 951 *cols = ws.ws_col; 952 if (ws.ws_row) 953 *lins = ws.ws_row; 954 } 955 } 956 #endif 957 #ifdef TIOCGSIZE 958 { 959 struct ttysize ts; 960 if (ioctl(el->el_infd, TIOCGSIZE, &ts) != -1) { 961 if (ts.ts_cols) 962 *cols = ts.ts_cols; 963 if (ts.ts_lines) 964 *lins = ts.ts_lines; 965 } 966 } 967 #endif 968 return Val(T_co) != *cols || Val(T_li) != *lins; 969 } 970 971 972 /* terminal_change_size(): 973 * Change the size of the terminal 974 */ 975 protected int 976 terminal_change_size(EditLine *el, int lins, int cols) 977 { 978 /* 979 * Just in case 980 */ 981 Val(T_co) = (cols < 2) ? 80 : cols; 982 Val(T_li) = (lins < 1) ? 24 : lins; 983 984 /* re-make display buffers */ 985 if (terminal_rebuffer_display(el) == -1) 986 return -1; 987 re_clear_display(el); 988 return 0; 989 } 990 991 992 /* terminal_init_arrow(): 993 * Initialize the arrow key bindings from termcap 994 */ 995 static void 996 terminal_init_arrow(EditLine *el) 997 { 998 funckey_t *arrow = el->el_terminal.t_fkey; 999 1000 arrow[A_K_DN].name = L"down"; 1001 arrow[A_K_DN].key = T_kd; 1002 arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; 1003 arrow[A_K_DN].type = XK_CMD; 1004 1005 arrow[A_K_UP].name = L"up"; 1006 arrow[A_K_UP].key = T_ku; 1007 arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; 1008 arrow[A_K_UP].type = XK_CMD; 1009 1010 arrow[A_K_LT].name = L"left"; 1011 arrow[A_K_LT].key = T_kl; 1012 arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; 1013 arrow[A_K_LT].type = XK_CMD; 1014 1015 arrow[A_K_RT].name = L"right"; 1016 arrow[A_K_RT].key = T_kr; 1017 arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; 1018 arrow[A_K_RT].type = XK_CMD; 1019 1020 arrow[A_K_HO].name = L"home"; 1021 arrow[A_K_HO].key = T_kh; 1022 arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; 1023 arrow[A_K_HO].type = XK_CMD; 1024 1025 arrow[A_K_EN].name = L"end"; 1026 arrow[A_K_EN].key = T_at7; 1027 arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; 1028 arrow[A_K_EN].type = XK_CMD; 1029 } 1030 1031 1032 /* terminal_reset_arrow(): 1033 * Reset arrow key bindings 1034 */ 1035 static void 1036 terminal_reset_arrow(EditLine *el) 1037 { 1038 funckey_t *arrow = el->el_terminal.t_fkey; 1039 static const wchar_t strA[] = L"\033[A"; 1040 static const wchar_t strB[] = L"\033[B"; 1041 static const wchar_t strC[] = L"\033[C"; 1042 static const wchar_t strD[] = L"\033[D"; 1043 static const wchar_t strH[] = L"\033[H"; 1044 static const wchar_t strF[] = L"\033[F"; 1045 static const wchar_t stOA[] = L"\033OA"; 1046 static const wchar_t stOB[] = L"\033OB"; 1047 static const wchar_t stOC[] = L"\033OC"; 1048 static const wchar_t stOD[] = L"\033OD"; 1049 static const wchar_t stOH[] = L"\033OH"; 1050 static const wchar_t stOF[] = L"\033OF"; 1051 1052 keymacro_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1053 keymacro_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1054 keymacro_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1055 keymacro_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1056 keymacro_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1057 keymacro_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1058 keymacro_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1059 keymacro_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1060 keymacro_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1061 keymacro_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1062 keymacro_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1063 keymacro_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1064 1065 if (el->el_map.type != MAP_VI) 1066 return; 1067 keymacro_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1068 keymacro_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1069 keymacro_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1070 keymacro_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1071 keymacro_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1072 keymacro_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1073 keymacro_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1074 keymacro_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1075 keymacro_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1076 keymacro_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1077 keymacro_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1078 keymacro_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1079 } 1080 1081 1082 /* terminal_set_arrow(): 1083 * Set an arrow key binding 1084 */ 1085 protected int 1086 terminal_set_arrow(EditLine *el, const wchar_t *name, keymacro_value_t *fun, 1087 int type) 1088 { 1089 funckey_t *arrow = el->el_terminal.t_fkey; 1090 int i; 1091 1092 for (i = 0; i < A_K_NKEYS; i++) 1093 if (wcscmp(name, arrow[i].name) == 0) { 1094 arrow[i].fun = *fun; 1095 arrow[i].type = type; 1096 return 0; 1097 } 1098 return -1; 1099 } 1100 1101 1102 /* terminal_clear_arrow(): 1103 * Clear an arrow key binding 1104 */ 1105 protected int 1106 terminal_clear_arrow(EditLine *el, const wchar_t *name) 1107 { 1108 funckey_t *arrow = el->el_terminal.t_fkey; 1109 int i; 1110 1111 for (i = 0; i < A_K_NKEYS; i++) 1112 if (wcscmp(name, arrow[i].name) == 0) { 1113 arrow[i].type = XK_NOD; 1114 return 0; 1115 } 1116 return -1; 1117 } 1118 1119 1120 /* terminal_print_arrow(): 1121 * Print the arrow key bindings 1122 */ 1123 protected void 1124 terminal_print_arrow(EditLine *el, const wchar_t *name) 1125 { 1126 int i; 1127 funckey_t *arrow = el->el_terminal.t_fkey; 1128 1129 for (i = 0; i < A_K_NKEYS; i++) 1130 if (*name == '\0' || wcscmp(name, arrow[i].name) == 0) 1131 if (arrow[i].type != XK_NOD) 1132 keymacro_kprint(el, arrow[i].name, 1133 &arrow[i].fun, arrow[i].type); 1134 } 1135 1136 1137 /* terminal_bind_arrow(): 1138 * Bind the arrow keys 1139 */ 1140 protected void 1141 terminal_bind_arrow(EditLine *el) 1142 { 1143 el_action_t *map; 1144 const el_action_t *dmap; 1145 int i, j; 1146 char *p; 1147 funckey_t *arrow = el->el_terminal.t_fkey; 1148 1149 /* Check if the components needed are initialized */ 1150 if (el->el_terminal.t_buf == NULL || el->el_map.key == NULL) 1151 return; 1152 1153 map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; 1154 dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; 1155 1156 terminal_reset_arrow(el); 1157 1158 for (i = 0; i < A_K_NKEYS; i++) { 1159 wchar_t wt_str[VISUAL_WIDTH_MAX]; 1160 wchar_t *px; 1161 size_t n; 1162 1163 p = el->el_terminal.t_str[arrow[i].key]; 1164 if (!p || !*p) 1165 continue; 1166 for (n = 0; n < VISUAL_WIDTH_MAX && p[n]; ++n) 1167 wt_str[n] = p[n]; 1168 while (n < VISUAL_WIDTH_MAX) 1169 wt_str[n++] = '\0'; 1170 px = wt_str; 1171 j = (unsigned char) *p; 1172 /* 1173 * Assign the arrow keys only if: 1174 * 1175 * 1. They are multi-character arrow keys and the user 1176 * has not re-assigned the leading character, or 1177 * has re-assigned the leading character to be 1178 * ED_SEQUENCE_LEAD_IN 1179 * 2. They are single arrow keys pointing to an 1180 * unassigned key. 1181 */ 1182 if (arrow[i].type == XK_NOD) 1183 keymacro_clear(el, map, px); 1184 else { 1185 if (p[1] && (dmap[j] == map[j] || 1186 map[j] == ED_SEQUENCE_LEAD_IN)) { 1187 keymacro_add(el, px, &arrow[i].fun, 1188 arrow[i].type); 1189 map[j] = ED_SEQUENCE_LEAD_IN; 1190 } else if (map[j] == ED_UNASSIGNED) { 1191 keymacro_clear(el, map, px); 1192 if (arrow[i].type == XK_CMD) 1193 map[j] = arrow[i].fun.cmd; 1194 else 1195 keymacro_add(el, px, &arrow[i].fun, 1196 arrow[i].type); 1197 } 1198 } 1199 } 1200 } 1201 1202 /* terminal_putc(): 1203 * Add a character 1204 */ 1205 static int 1206 terminal_putc(int c) 1207 { 1208 if (terminal_outfile == NULL) 1209 return -1; 1210 return fputc(c, terminal_outfile); 1211 } 1212 1213 static void 1214 terminal_tputs(EditLine *el, const char *cap, int affcnt) 1215 { 1216 #ifdef _REENTRANT 1217 pthread_mutex_lock(&terminal_mutex); 1218 #endif 1219 terminal_outfile = el->el_outfile; 1220 (void)tputs(cap, affcnt, terminal_putc); 1221 #ifdef _REENTRANT 1222 pthread_mutex_unlock(&terminal_mutex); 1223 #endif 1224 } 1225 1226 /* terminal__putc(): 1227 * Add a character 1228 */ 1229 protected int 1230 terminal__putc(EditLine *el, wint_t c) 1231 { 1232 char buf[MB_LEN_MAX +1]; 1233 ssize_t i; 1234 if (c == (wint_t)MB_FILL_CHAR) 1235 return 0; 1236 i = ct_encode_char(buf, MB_LEN_MAX, c); 1237 if (i <= 0) 1238 return (int)i; 1239 buf[i] = '\0'; 1240 return fputs(buf, el->el_outfile); 1241 } 1242 1243 /* terminal__flush(): 1244 * Flush output 1245 */ 1246 protected void 1247 terminal__flush(EditLine *el) 1248 { 1249 1250 (void) fflush(el->el_outfile); 1251 } 1252 1253 /* terminal_writec(): 1254 * Write the given character out, in a human readable form 1255 */ 1256 protected void 1257 terminal_writec(EditLine *el, wint_t c) 1258 { 1259 wchar_t visbuf[VISUAL_WIDTH_MAX +1]; 1260 ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c); 1261 visbuf[vcnt] = '\0'; 1262 terminal_overwrite(el, visbuf, (size_t)vcnt); 1263 terminal__flush(el); 1264 } 1265 1266 1267 /* terminal_telltc(): 1268 * Print the current termcap characteristics 1269 */ 1270 protected int 1271 /*ARGSUSED*/ 1272 terminal_telltc(EditLine *el, int argc __attribute__((__unused__)), 1273 const wchar_t **argv __attribute__((__unused__))) 1274 { 1275 const struct termcapstr *t; 1276 char **ts; 1277 1278 (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); 1279 (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); 1280 (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", 1281 Val(T_co), Val(T_li)); 1282 (void) fprintf(el->el_outfile, 1283 "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); 1284 (void) fprintf(el->el_outfile, 1285 "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); 1286 (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 1287 EL_HAS_AUTO_MARGINS ? "has" : "does not have"); 1288 if (EL_HAS_AUTO_MARGINS) 1289 (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 1290 EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); 1291 1292 for (t = tstr, ts = el->el_terminal.t_str; t->name != NULL; t++, ts++) { 1293 const char *ub; 1294 if (*ts && **ts) { 1295 ub = ct_encode_string(ct_visual_string( 1296 ct_decode_string(*ts, &el->el_scratch)), 1297 &el->el_scratch); 1298 } else { 1299 ub = "(empty)"; 1300 } 1301 (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", 1302 t->long_name, t->name, ub); 1303 } 1304 (void) fputc('\n', el->el_outfile); 1305 return 0; 1306 } 1307 1308 1309 /* terminal_settc(): 1310 * Change the current terminal characteristics 1311 */ 1312 protected int 1313 /*ARGSUSED*/ 1314 terminal_settc(EditLine *el, int argc __attribute__((__unused__)), 1315 const wchar_t **argv) 1316 { 1317 const struct termcapstr *ts; 1318 const struct termcapval *tv; 1319 char what[8], how[8]; 1320 1321 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1322 return -1; 1323 1324 strncpy(what, ct_encode_string(argv[1], &el->el_scratch), sizeof(what)); 1325 what[sizeof(what) - 1] = '\0'; 1326 strncpy(how, ct_encode_string(argv[2], &el->el_scratch), sizeof(how)); 1327 how[sizeof(how) - 1] = '\0'; 1328 1329 /* 1330 * Do the strings first 1331 */ 1332 for (ts = tstr; ts->name != NULL; ts++) 1333 if (strcmp(ts->name, what) == 0) 1334 break; 1335 1336 if (ts->name != NULL) { 1337 terminal_alloc(el, ts, how); 1338 terminal_setflags(el); 1339 return 0; 1340 } 1341 /* 1342 * Do the numeric ones second 1343 */ 1344 for (tv = tval; tv->name != NULL; tv++) 1345 if (strcmp(tv->name, what) == 0) 1346 break; 1347 1348 if (tv->name != NULL) 1349 return -1; 1350 1351 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1352 tv == &tval[T_am] || tv == &tval[T_xn]) { 1353 if (strcmp(how, "yes") == 0) 1354 el->el_terminal.t_val[tv - tval] = 1; 1355 else if (strcmp(how, "no") == 0) 1356 el->el_terminal.t_val[tv - tval] = 0; 1357 else { 1358 (void) fprintf(el->el_errfile, 1359 "%ls: Bad value `%s'.\n", argv[0], how); 1360 return -1; 1361 } 1362 terminal_setflags(el); 1363 if (terminal_change_size(el, Val(T_li), Val(T_co)) == -1) 1364 return -1; 1365 return 0; 1366 } else { 1367 long i; 1368 char *ep; 1369 1370 i = strtol(how, &ep, 10); 1371 if (*ep != '\0') { 1372 (void) fprintf(el->el_errfile, 1373 "%ls: Bad value `%s'.\n", argv[0], how); 1374 return -1; 1375 } 1376 el->el_terminal.t_val[tv - tval] = (int) i; 1377 el->el_terminal.t_size.v = Val(T_co); 1378 el->el_terminal.t_size.h = Val(T_li); 1379 if (tv == &tval[T_co] || tv == &tval[T_li]) 1380 if (terminal_change_size(el, Val(T_li), Val(T_co)) 1381 == -1) 1382 return -1; 1383 return 0; 1384 } 1385 } 1386 1387 1388 /* terminal_gettc(): 1389 * Get the current terminal characteristics 1390 */ 1391 protected int 1392 /*ARGSUSED*/ 1393 terminal_gettc(EditLine *el, int argc __attribute__((__unused__)), char **argv) 1394 { 1395 const struct termcapstr *ts; 1396 const struct termcapval *tv; 1397 char *what; 1398 void *how; 1399 1400 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1401 return -1; 1402 1403 what = argv[1]; 1404 how = argv[2]; 1405 1406 /* 1407 * Do the strings first 1408 */ 1409 for (ts = tstr; ts->name != NULL; ts++) 1410 if (strcmp(ts->name, what) == 0) 1411 break; 1412 1413 if (ts->name != NULL) { 1414 *(char **)how = el->el_terminal.t_str[ts - tstr]; 1415 return 0; 1416 } 1417 /* 1418 * Do the numeric ones second 1419 */ 1420 for (tv = tval; tv->name != NULL; tv++) 1421 if (strcmp(tv->name, what) == 0) 1422 break; 1423 1424 if (tv->name == NULL) 1425 return -1; 1426 1427 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1428 tv == &tval[T_am] || tv == &tval[T_xn]) { 1429 static char yes[] = "yes"; 1430 static char no[] = "no"; 1431 if (el->el_terminal.t_val[tv - tval]) 1432 *(char **)how = yes; 1433 else 1434 *(char **)how = no; 1435 return 0; 1436 } else { 1437 *(int *)how = el->el_terminal.t_val[tv - tval]; 1438 return 0; 1439 } 1440 } 1441 1442 /* terminal_echotc(): 1443 * Print the termcap string out with variable substitution 1444 */ 1445 protected int 1446 /*ARGSUSED*/ 1447 terminal_echotc(EditLine *el, int argc __attribute__((__unused__)), 1448 const wchar_t **argv) 1449 { 1450 char *cap, *scap; 1451 wchar_t *ep; 1452 int arg_need, arg_cols, arg_rows; 1453 int verbose = 0, silent = 0; 1454 char *area; 1455 static const char fmts[] = "%s\n", fmtd[] = "%d\n"; 1456 const struct termcapstr *t; 1457 char buf[TC_BUFSIZE]; 1458 long i; 1459 1460 area = buf; 1461 1462 if (argv == NULL || argv[1] == NULL) 1463 return -1; 1464 argv++; 1465 1466 if (argv[0][0] == '-') { 1467 switch (argv[0][1]) { 1468 case 'v': 1469 verbose = 1; 1470 break; 1471 case 's': 1472 silent = 1; 1473 break; 1474 default: 1475 /* stderror(ERR_NAME | ERR_TCUSAGE); */ 1476 break; 1477 } 1478 argv++; 1479 } 1480 if (!*argv || *argv[0] == '\0') 1481 return 0; 1482 if (wcscmp(*argv, L"tabs") == 0) { 1483 (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); 1484 return 0; 1485 } else if (wcscmp(*argv, L"meta") == 0) { 1486 (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); 1487 return 0; 1488 } else if (wcscmp(*argv, L"xn") == 0) { 1489 (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? 1490 "yes" : "no"); 1491 return 0; 1492 } else if (wcscmp(*argv, L"am") == 0) { 1493 (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? 1494 "yes" : "no"); 1495 return 0; 1496 } else if (wcscmp(*argv, L"baud") == 0) { 1497 (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); 1498 return 0; 1499 } else if (wcscmp(*argv, L"rows") == 0 || 1500 wcscmp(*argv, L"lines") == 0) { 1501 (void) fprintf(el->el_outfile, fmtd, Val(T_li)); 1502 return 0; 1503 } else if (wcscmp(*argv, L"cols") == 0) { 1504 (void) fprintf(el->el_outfile, fmtd, Val(T_co)); 1505 return 0; 1506 } 1507 /* 1508 * Try to use our local definition first 1509 */ 1510 scap = NULL; 1511 for (t = tstr; t->name != NULL; t++) 1512 if (strcmp(t->name, 1513 ct_encode_string(*argv, &el->el_scratch)) == 0) { 1514 scap = el->el_terminal.t_str[t - tstr]; 1515 break; 1516 } 1517 if (t->name == NULL) { 1518 /* XXX: some systems' tgetstr needs non const */ 1519 scap = tgetstr(ct_encode_string(*argv, &el->el_scratch), &area); 1520 } 1521 if (!scap || scap[0] == '\0') { 1522 if (!silent) 1523 (void) fprintf(el->el_errfile, 1524 "echotc: Termcap parameter `%ls' not found.\n", 1525 *argv); 1526 return -1; 1527 } 1528 /* 1529 * Count home many values we need for this capability. 1530 */ 1531 for (cap = scap, arg_need = 0; *cap; cap++) 1532 if (*cap == '%') 1533 switch (*++cap) { 1534 case 'd': 1535 case '2': 1536 case '3': 1537 case '.': 1538 case '+': 1539 arg_need++; 1540 break; 1541 case '%': 1542 case '>': 1543 case 'i': 1544 case 'r': 1545 case 'n': 1546 case 'B': 1547 case 'D': 1548 break; 1549 default: 1550 /* 1551 * hpux has lot's of them... 1552 */ 1553 if (verbose) 1554 (void) fprintf(el->el_errfile, 1555 "echotc: Warning: unknown termcap %% `%c'.\n", 1556 *cap); 1557 /* This is bad, but I won't complain */ 1558 break; 1559 } 1560 1561 switch (arg_need) { 1562 case 0: 1563 argv++; 1564 if (*argv && *argv[0]) { 1565 if (!silent) 1566 (void) fprintf(el->el_errfile, 1567 "echotc: Warning: Extra argument `%ls'.\n", 1568 *argv); 1569 return -1; 1570 } 1571 terminal_tputs(el, scap, 1); 1572 break; 1573 case 1: 1574 argv++; 1575 if (!*argv || *argv[0] == '\0') { 1576 if (!silent) 1577 (void) fprintf(el->el_errfile, 1578 "echotc: Warning: Missing argument.\n"); 1579 return -1; 1580 } 1581 arg_cols = 0; 1582 i = wcstol(*argv, &ep, 10); 1583 if (*ep != '\0' || i < 0) { 1584 if (!silent) 1585 (void) fprintf(el->el_errfile, 1586 "echotc: Bad value `%ls' for rows.\n", 1587 *argv); 1588 return -1; 1589 } 1590 arg_rows = (int) i; 1591 argv++; 1592 if (*argv && *argv[0]) { 1593 if (!silent) 1594 (void) fprintf(el->el_errfile, 1595 "echotc: Warning: Extra argument `%ls" 1596 "'.\n", *argv); 1597 return -1; 1598 } 1599 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), 1); 1600 break; 1601 default: 1602 /* This is wrong, but I will ignore it... */ 1603 if (verbose) 1604 (void) fprintf(el->el_errfile, 1605 "echotc: Warning: Too many required arguments (%d).\n", 1606 arg_need); 1607 /* FALLTHROUGH */ 1608 case 2: 1609 argv++; 1610 if (!*argv || *argv[0] == '\0') { 1611 if (!silent) 1612 (void) fprintf(el->el_errfile, 1613 "echotc: Warning: Missing argument.\n"); 1614 return -1; 1615 } 1616 i = wcstol(*argv, &ep, 10); 1617 if (*ep != '\0' || i < 0) { 1618 if (!silent) 1619 (void) fprintf(el->el_errfile, 1620 "echotc: Bad value `%ls' for cols.\n", 1621 *argv); 1622 return -1; 1623 } 1624 arg_cols = (int) i; 1625 argv++; 1626 if (!*argv || *argv[0] == '\0') { 1627 if (!silent) 1628 (void) fprintf(el->el_errfile, 1629 "echotc: Warning: Missing argument.\n"); 1630 return -1; 1631 } 1632 i = wcstol(*argv, &ep, 10); 1633 if (*ep != '\0' || i < 0) { 1634 if (!silent) 1635 (void) fprintf(el->el_errfile, 1636 "echotc: Bad value `%ls' for rows.\n", 1637 *argv); 1638 return -1; 1639 } 1640 arg_rows = (int) i; 1641 if (*ep != '\0') { 1642 if (!silent) 1643 (void) fprintf(el->el_errfile, 1644 "echotc: Bad value `%ls'.\n", *argv); 1645 return -1; 1646 } 1647 argv++; 1648 if (*argv && *argv[0]) { 1649 if (!silent) 1650 (void) fprintf(el->el_errfile, 1651 "echotc: Warning: Extra argument `%ls" 1652 "'.\n", *argv); 1653 return -1; 1654 } 1655 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows); 1656 break; 1657 } 1658 return 0; 1659 } 1660