1/*- 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Christos Zoulas of Cornell University. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $NetBSD: term.c,v 1.56 2009/12/28 21:54:21 christos Exp $ 33 */ 34 35#if !defined(lint) && !defined(SCCSID) 36static char sccsid[] = "@(#)term.c 8.2 (Berkeley) 4/30/95"; 37#endif /* not lint && not SCCSID */ 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD$"); 40 41/* 42 * term.c: Editor/termcap-curses interface 43 * We have to declare a static variable here, since the 44 * termcap putchar routine does not take an argument! 45 */ 46#include <stdio.h> 47#include <signal.h> 48#include <string.h> 49#include <stdlib.h> 50#include <unistd.h> 51#include <termcap.h> 52#include <curses.h> 53#include <ncurses.h> 54#include <term.h> 55#include <sys/types.h> 56#include <sys/ioctl.h> 57 58#include "el.h" 59 60/* 61 * IMPORTANT NOTE: these routines are allowed to look at the current screen 62 * and the current possition assuming that it is correct. If this is not 63 * true, then the update will be WRONG! This is (should be) a valid 64 * assumption... 65 */ 66 67#define TC_BUFSIZE 2048 68 69#define GoodStr(a) (el->el_term.t_str[a] != NULL && \ 70 el->el_term.t_str[a][0] != '\0') 71#define Str(a) el->el_term.t_str[a] 72#define Val(a) el->el_term.t_val[a] 73 74#ifdef notdef 75private const struct { 76 const char *b_name; 77 int b_rate; 78} baud_rate[] = { 79#ifdef B0 80 { "0", B0 }, 81#endif 82#ifdef B50 83 { "50", B50 }, 84#endif 85#ifdef B75 86 { "75", B75 }, 87#endif 88#ifdef B110 89 { "110", B110 }, 90#endif 91#ifdef B134 92 { "134", B134 }, 93#endif 94#ifdef B150 95 { "150", B150 }, 96#endif 97#ifdef B200 98 { "200", B200 }, 99#endif 100#ifdef B300 101 { "300", B300 }, 102#endif 103#ifdef B600 104 { "600", B600 }, 105#endif 106#ifdef B900 107 { "900", B900 }, 108#endif 109#ifdef B1200 110 { "1200", B1200 }, 111#endif 112#ifdef B1800 113 { "1800", B1800 }, 114#endif 115#ifdef B2400 116 { "2400", B2400 }, 117#endif 118#ifdef B3600 119 { "3600", B3600 }, 120#endif 121#ifdef B4800 122 { "4800", B4800 }, 123#endif 124#ifdef B7200 125 { "7200", B7200 }, 126#endif 127#ifdef B9600 128 { "9600", B9600 }, 129#endif 130#ifdef EXTA 131 { "19200", EXTA }, 132#endif 133#ifdef B19200 134 { "19200", B19200 }, 135#endif 136#ifdef EXTB 137 { "38400", EXTB }, 138#endif 139#ifdef B38400 140 { "38400", B38400 }, 141#endif 142 { NULL, 0 } 143}; 144#endif 145 146private const struct termcapstr { 147 const char *name; 148 const char *long_name; 149} tstr[] = { 150#define T_al 0 151 { "al", "add new blank line" }, 152#define T_bl 1 153 { "bl", "audible bell" }, 154#define T_cd 2 155 { "cd", "clear to bottom" }, 156#define T_ce 3 157 { "ce", "clear to end of line" }, 158#define T_ch 4 159 { "ch", "cursor to horiz pos" }, 160#define T_cl 5 161 { "cl", "clear screen" }, 162#define T_dc 6 163 { "dc", "delete a character" }, 164#define T_dl 7 165 { "dl", "delete a line" }, 166#define T_dm 8 167 { "dm", "start delete mode" }, 168#define T_ed 9 169 { "ed", "end delete mode" }, 170#define T_ei 10 171 { "ei", "end insert mode" }, 172#define T_fs 11 173 { "fs", "cursor from status line" }, 174#define T_ho 12 175 { "ho", "home cursor" }, 176#define T_ic 13 177 { "ic", "insert character" }, 178#define T_im 14 179 { "im", "start insert mode" }, 180#define T_ip 15 181 { "ip", "insert padding" }, 182#define T_kd 16 183 { "kd", "sends cursor down" }, 184#define T_kl 17 185 { "kl", "sends cursor left" }, 186#define T_kr 18 187 { "kr", "sends cursor right" }, 188#define T_ku 19 189 { "ku", "sends cursor up" }, 190#define T_md 20 191 { "md", "begin bold" }, 192#define T_me 21 193 { "me", "end attributes" }, 194#define T_nd 22 195 { "nd", "non destructive space" }, 196#define T_se 23 197 { "se", "end standout" }, 198#define T_so 24 199 { "so", "begin standout" }, 200#define T_ts 25 201 { "ts", "cursor to status line" }, 202#define T_up 26 203 { "up", "cursor up one" }, 204#define T_us 27 205 { "us", "begin underline" }, 206#define T_ue 28 207 { "ue", "end underline" }, 208#define T_vb 29 209 { "vb", "visible bell" }, 210#define T_DC 30 211 { "DC", "delete multiple chars" }, 212#define T_DO 31 213 { "DO", "cursor down multiple" }, 214#define T_IC 32 215 { "IC", "insert multiple chars" }, 216#define T_LE 33 217 { "LE", "cursor left multiple" }, 218#define T_RI 34 219 { "RI", "cursor right multiple" }, 220#define T_UP 35 221 { "UP", "cursor up multiple" }, 222#define T_kh 36 223 { "kh", "send cursor home" }, 224#define T_at7 37 225 { "@7", "send cursor end" }, 226#define T_kD 38 227 { "kD", "send cursor delete" }, 228#define T_str 39 229 { NULL, NULL } 230}; 231 232private const struct termcapval { 233 const char *name; 234 const char *long_name; 235} tval[] = { 236#define T_am 0 237 { "am", "has automatic margins" }, 238#define T_pt 1 239 { "pt", "has physical tabs" }, 240#define T_li 2 241 { "li", "Number of lines" }, 242#define T_co 3 243 { "co", "Number of columns" }, 244#define T_km 4 245 { "km", "Has meta key" }, 246#define T_xt 5 247 { "xt", "Tab chars destructive" }, 248#define T_xn 6 249 { "xn", "newline ignored at right margin" }, 250#define T_MT 7 251 { "MT", "Has meta key" }, /* XXX? */ 252#define T_val 8 253 { NULL, NULL, } 254}; 255/* do two or more of the attributes use me */ 256 257private void term_setflags(EditLine *); 258private int term_rebuffer_display(EditLine *); 259private void term_free_display(EditLine *); 260private int term_alloc_display(EditLine *); 261private void term_alloc(EditLine *, const struct termcapstr *, const char *); 262private void term_init_arrow(EditLine *); 263private void term_reset_arrow(EditLine *); 264private int term_putc(int); 265private void term_tputs(EditLine *, const char *, int); 266 267#ifdef _REENTRANT 268private pthread_mutex_t term_mutex = PTHREAD_MUTEX_INITIALIZER; 269#endif 270private FILE *term_outfile = NULL; 271 272 273/* term_setflags(): 274 * Set the terminal capability flags 275 */ 276private void 277term_setflags(EditLine *el) 278{ 279 EL_FLAGS = 0; 280 if (el->el_tty.t_tabs) 281 EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; 282 283 EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; 284 EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; 285 EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; 286 EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? 287 TERM_CAN_INSERT : 0; 288 EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; 289 EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; 290 EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; 291 292 if (GoodStr(T_me) && GoodStr(T_ue)) 293 EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? 294 TERM_CAN_ME : 0; 295 else 296 EL_FLAGS &= ~TERM_CAN_ME; 297 if (GoodStr(T_me) && GoodStr(T_se)) 298 EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? 299 TERM_CAN_ME : 0; 300 301 302#ifdef DEBUG_SCREEN 303 if (!EL_CAN_UP) { 304 (void) fprintf(el->el_errfile, 305 "WARNING: Your terminal cannot move up.\n"); 306 (void) fprintf(el->el_errfile, 307 "Editing may be odd for long lines.\n"); 308 } 309 if (!EL_CAN_CEOL) 310 (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); 311 if (!EL_CAN_DELETE) 312 (void) fprintf(el->el_errfile, "no delete char capability.\n"); 313 if (!EL_CAN_INSERT) 314 (void) fprintf(el->el_errfile, "no insert char capability.\n"); 315#endif /* DEBUG_SCREEN */ 316} 317 318/* term_init(): 319 * Initialize the terminal stuff 320 */ 321protected int 322term_init(EditLine *el) 323{ 324 325 el->el_term.t_buf = (char *) el_malloc(TC_BUFSIZE); 326 if (el->el_term.t_buf == NULL) 327 return (-1); 328 el->el_term.t_cap = (char *) el_malloc(TC_BUFSIZE); 329 if (el->el_term.t_cap == NULL) 330 return (-1); 331 el->el_term.t_fkey = (fkey_t *) el_malloc(A_K_NKEYS * sizeof(fkey_t)); 332 if (el->el_term.t_fkey == NULL) 333 return (-1); 334 el->el_term.t_loc = 0; 335 el->el_term.t_str = (char **) el_malloc(T_str * sizeof(char *)); 336 if (el->el_term.t_str == NULL) 337 return (-1); 338 (void) memset(el->el_term.t_str, 0, T_str * sizeof(char *)); 339 el->el_term.t_val = (int *) el_malloc(T_val * sizeof(int)); 340 if (el->el_term.t_val == NULL) 341 return (-1); 342 (void) memset(el->el_term.t_val, 0, T_val * sizeof(int)); 343 (void) term_set(el, NULL); 344 term_init_arrow(el); 345 return (0); 346} 347 348/* term_end(): 349 * Clean up the terminal stuff 350 */ 351protected void 352term_end(EditLine *el) 353{ 354 355 el_free((ptr_t) el->el_term.t_buf); 356 el->el_term.t_buf = NULL; 357 el_free((ptr_t) el->el_term.t_cap); 358 el->el_term.t_cap = NULL; 359 el->el_term.t_loc = 0; 360 el_free((ptr_t) el->el_term.t_str); 361 el->el_term.t_str = NULL; 362 el_free((ptr_t) el->el_term.t_val); 363 el->el_term.t_val = NULL; 364 el_free((ptr_t) el->el_term.t_fkey); 365 el->el_term.t_fkey = NULL; 366 term_free_display(el); 367} 368 369 370/* term_alloc(): 371 * Maintain a string pool for termcap strings 372 */ 373private void 374term_alloc(EditLine *el, const struct termcapstr *t, const char *cap) 375{ 376 char termbuf[TC_BUFSIZE]; 377 size_t tlen, clen; 378 char **tlist = el->el_term.t_str; 379 char **tmp, **str = &tlist[t - tstr]; 380 381 if (cap == NULL || *cap == '\0') { 382 *str = NULL; 383 return; 384 } else 385 clen = strlen(cap); 386 387 tlen = *str == NULL ? 0 : strlen(*str); 388 389 /* 390 * New string is shorter; no need to allocate space 391 */ 392 if (clen <= tlen) { 393 if (*str) 394 (void) strcpy(*str, cap); /* XXX strcpy is safe */ 395 return; 396 } 397 /* 398 * New string is longer; see if we have enough space to append 399 */ 400 if (el->el_term.t_loc + 3 < TC_BUFSIZE) { 401 /* XXX strcpy is safe */ 402 (void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], 403 cap); 404 el->el_term.t_loc += (int)clen + 1; /* one for \0 */ 405 return; 406 } 407 /* 408 * Compact our buffer; no need to check compaction, cause we know it 409 * fits... 410 */ 411 tlen = 0; 412 for (tmp = tlist; tmp < &tlist[T_str]; tmp++) 413 if (*tmp != NULL && *tmp != '\0' && *tmp != *str) { 414 char *ptr; 415 416 for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) 417 continue; 418 termbuf[tlen++] = '\0'; 419 } 420 memcpy(el->el_term.t_buf, termbuf, TC_BUFSIZE); 421 el->el_term.t_loc = (int)tlen; 422 if (el->el_term.t_loc + 3 >= TC_BUFSIZE) { 423 (void) fprintf(el->el_errfile, 424 "Out of termcap string space.\n"); 425 return; 426 } 427 /* XXX strcpy is safe */ 428 (void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap); 429 el->el_term.t_loc += (int)clen + 1; /* one for \0 */ 430 return; 431} 432 433 434/* term_rebuffer_display(): 435 * Rebuffer the display after the screen changed size 436 */ 437private int 438term_rebuffer_display(EditLine *el) 439{ 440 coord_t *c = &el->el_term.t_size; 441 442 term_free_display(el); 443 444 c->h = Val(T_co); 445 c->v = Val(T_li); 446 447 if (term_alloc_display(el) == -1) 448 return (-1); 449 return (0); 450} 451 452 453/* term_alloc_display(): 454 * Allocate a new display. 455 */ 456private int 457term_alloc_display(EditLine *el) 458{ 459 int i; 460 char **b; 461 coord_t *c = &el->el_term.t_size; 462 463 b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1))); 464 if (b == NULL) 465 return (-1); 466 for (i = 0; i < c->v; i++) { 467 b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1))); 468 if (b[i] == NULL) { 469 while (--i >= 0) 470 el_free((ptr_t) b[i]); 471 el_free((ptr_t) b); 472 return (-1); 473 } 474 } 475 b[c->v] = NULL; 476 el->el_display = b; 477 478 b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1))); 479 if (b == NULL) 480 return (-1); 481 for (i = 0; i < c->v; i++) { 482 b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1))); 483 if (b[i] == NULL) { 484 while (--i >= 0) 485 el_free((ptr_t) b[i]); 486 el_free((ptr_t) b); 487 return (-1); 488 } 489 } 490 b[c->v] = NULL; 491 el->el_vdisplay = b; 492 return (0); 493} 494 495 496/* term_free_display(): 497 * Free the display buffers 498 */ 499private void 500term_free_display(EditLine *el) 501{ 502 char **b; 503 char **bufp; 504 505 b = el->el_display; 506 el->el_display = NULL; 507 if (b != NULL) { 508 for (bufp = b; *bufp != NULL; bufp++) 509 el_free((ptr_t) * bufp); 510 el_free((ptr_t) b); 511 } 512 b = el->el_vdisplay; 513 el->el_vdisplay = NULL; 514 if (b != NULL) { 515 for (bufp = b; *bufp != NULL; bufp++) 516 el_free((ptr_t) * bufp); 517 el_free((ptr_t) b); 518 } 519} 520 521 522/* term_move_to_line(): 523 * move to line <where> (first line == 0) 524 * as efficiently as possible 525 */ 526protected void 527term_move_to_line(EditLine *el, int where) 528{ 529 int del; 530 531 if (where == el->el_cursor.v) 532 return; 533 534 if (where > el->el_term.t_size.v) { 535#ifdef DEBUG_SCREEN 536 (void) fprintf(el->el_errfile, 537 "term_move_to_line: where is ridiculous: %d\r\n", where); 538#endif /* DEBUG_SCREEN */ 539 return; 540 } 541 if ((del = where - el->el_cursor.v) > 0) { 542 while (del > 0) { 543 if (EL_HAS_AUTO_MARGINS && 544 el->el_display[el->el_cursor.v][0] != '\0') { 545 /* move without newline */ 546 term_move_to_char(el, el->el_term.t_size.h - 1); 547 term_overwrite(el, &el->el_display 548 [el->el_cursor.v][el->el_cursor.h], 549 (size_t)(el->el_term.t_size.h - 550 el->el_cursor.h)); 551 /* updates Cursor */ 552 del--; 553 } else { 554 if ((del > 1) && GoodStr(T_DO)) { 555 term_tputs(el, tgoto(Str(T_DO), del, 556 del), del); 557 del = 0; 558 } else { 559 for (; del > 0; del--) 560 term__putc(el, '\n'); 561 /* because the \n will become \r\n */ 562 el->el_cursor.h = 0; 563 } 564 } 565 } 566 } else { /* del < 0 */ 567 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 568 term_tputs(el, tgoto(Str(T_UP), -del, -del), -del); 569 else { 570 if (GoodStr(T_up)) 571 for (; del < 0; del++) 572 term_tputs(el, Str(T_up), 1); 573 } 574 } 575 el->el_cursor.v = where;/* now where is here */ 576} 577 578 579/* term_move_to_char(): 580 * Move to the character position specified 581 */ 582protected void 583term_move_to_char(EditLine *el, int where) 584{ 585 int del, i; 586 587mc_again: 588 if (where == el->el_cursor.h) 589 return; 590 591 if (where > el->el_term.t_size.h) { 592#ifdef DEBUG_SCREEN 593 (void) fprintf(el->el_errfile, 594 "term_move_to_char: where is riduculous: %d\r\n", where); 595#endif /* DEBUG_SCREEN */ 596 return; 597 } 598 if (!where) { /* if where is first column */ 599 term__putc(el, '\r'); /* do a CR */ 600 el->el_cursor.h = 0; 601 return; 602 } 603 del = where - el->el_cursor.h; 604 605 if ((del < -4 || del > 4) && GoodStr(T_ch)) 606 /* go there directly */ 607 term_tputs(el, tgoto(Str(T_ch), where, where), where); 608 else { 609 if (del > 0) { /* moving forward */ 610 if ((del > 4) && GoodStr(T_RI)) 611 term_tputs(el, tgoto(Str(T_RI), del, del), del); 612 else { 613 /* if I can do tabs, use them */ 614 if (EL_CAN_TAB) { 615 if ((el->el_cursor.h & 0370) != 616 (where & ~0x7)) { 617 /* if not within tab stop */ 618 for (i = 619 (el->el_cursor.h & 0370); 620 i < (where & ~0x7); 621 i += 8) 622 term__putc(el, '\t'); 623 /* then tab over */ 624 el->el_cursor.h = where & ~0x7; 625 } 626 } 627 /* 628 * it's usually cheaper to just write the 629 * chars, so we do. 630 */ 631 /* 632 * NOTE THAT term_overwrite() WILL CHANGE 633 * el->el_cursor.h!!! 634 */ 635 term_overwrite(el, &el->el_display[ 636 el->el_cursor.v][el->el_cursor.h], 637 (size_t)(where - el->el_cursor.h)); 638 639 } 640 } else { /* del < 0 := moving backward */ 641 if ((-del > 4) && GoodStr(T_LE)) 642 term_tputs(el, tgoto(Str(T_LE), -del, -del), 643 -del); 644 else { /* can't go directly there */ 645 /* 646 * if the "cost" is greater than the "cost" 647 * from col 0 648 */ 649 if (EL_CAN_TAB ? 650 ((unsigned int)-del > 651 (((unsigned int) where >> 3) + 652 (where & 07))) 653 : (-del > where)) { 654 term__putc(el, '\r'); /* do a CR */ 655 el->el_cursor.h = 0; 656 goto mc_again; /* and try again */ 657 } 658 for (i = 0; i < -del; i++) 659 term__putc(el, '\b'); 660 } 661 } 662 } 663 el->el_cursor.h = where; /* now where is here */ 664} 665 666 667/* term_overwrite(): 668 * Overstrike num characters 669 */ 670protected void 671term_overwrite(EditLine *el, const char *cp, size_t n) 672{ 673 if (n == 0) 674 return; 675 676 if (n > (size_t)el->el_term.t_size.h) { 677#ifdef DEBUG_SCREEN 678 (void) fprintf(el->el_errfile, 679 "term_overwrite: n is riduculous: %d\r\n", n); 680#endif /* DEBUG_SCREEN */ 681 return; 682 } 683 684 do { 685 term__putc(el, *cp++); 686 el->el_cursor.h++; 687 } while (--n); 688 689 if (el->el_cursor.h >= el->el_term.t_size.h) { /* wrap? */ 690 if (EL_HAS_AUTO_MARGINS) { /* yes */ 691 el->el_cursor.h = 0; 692 el->el_cursor.v++; 693 if (EL_HAS_MAGIC_MARGINS) { 694 /* force the wrap to avoid the "magic" 695 * situation */ 696 char c; 697 if ((c = el->el_display[el->el_cursor.v][el->el_cursor.h]) 698 != '\0') 699 term_overwrite(el, &c, 1); 700 else { 701 term__putc(el, ' '); 702 el->el_cursor.h = 1; 703 } 704 } 705 } else /* no wrap, but cursor stays on screen */ 706 el->el_cursor.h = el->el_term.t_size.h - 1; 707 } 708} 709 710 711/* term_deletechars(): 712 * Delete num characters 713 */ 714protected void 715term_deletechars(EditLine *el, int num) 716{ 717 if (num <= 0) 718 return; 719 720 if (!EL_CAN_DELETE) { 721#ifdef DEBUG_EDIT 722 (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); 723#endif /* DEBUG_EDIT */ 724 return; 725 } 726 if (num > el->el_term.t_size.h) { 727#ifdef DEBUG_SCREEN 728 (void) fprintf(el->el_errfile, 729 "term_deletechars: num is riduculous: %d\r\n", num); 730#endif /* DEBUG_SCREEN */ 731 return; 732 } 733 if (GoodStr(T_DC)) /* if I have multiple delete */ 734 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more 735 * expen. */ 736 term_tputs(el, tgoto(Str(T_DC), num, num), num); 737 return; 738 } 739 if (GoodStr(T_dm)) /* if I have delete mode */ 740 term_tputs(el, Str(T_dm), 1); 741 742 if (GoodStr(T_dc)) /* else do one at a time */ 743 while (num--) 744 term_tputs(el, Str(T_dc), 1); 745 746 if (GoodStr(T_ed)) /* if I have delete mode */ 747 term_tputs(el, Str(T_ed), 1); 748} 749 750 751/* term_insertwrite(): 752 * Puts terminal in insert character mode or inserts num 753 * characters in the line 754 */ 755protected void 756term_insertwrite(EditLine *el, char *cp, int num) 757{ 758 if (num <= 0) 759 return; 760 if (!EL_CAN_INSERT) { 761#ifdef DEBUG_EDIT 762 (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); 763#endif /* DEBUG_EDIT */ 764 return; 765 } 766 if (num > el->el_term.t_size.h) { 767#ifdef DEBUG_SCREEN 768 (void) fprintf(el->el_errfile, 769 "StartInsert: num is riduculous: %d\r\n", num); 770#endif /* DEBUG_SCREEN */ 771 return; 772 } 773 if (GoodStr(T_IC)) /* if I have multiple insert */ 774 if ((num > 1) || !GoodStr(T_ic)) { 775 /* if ic would be more expensive */ 776 term_tputs(el, tgoto(Str(T_IC), num, num), num); 777 term_overwrite(el, cp, (size_t)num); 778 /* this updates el_cursor.h */ 779 return; 780 } 781 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 782 term_tputs(el, Str(T_im), 1); 783 784 el->el_cursor.h += num; 785 do 786 term__putc(el, *cp++); 787 while (--num); 788 789 if (GoodStr(T_ip)) /* have to make num chars insert */ 790 term_tputs(el, Str(T_ip), 1); 791 792 term_tputs(el, Str(T_ei), 1); 793 return; 794 } 795 do { 796 if (GoodStr(T_ic)) /* have to make num chars insert */ 797 term_tputs(el, Str(T_ic), 1); 798 799 term__putc(el, *cp++); 800 801 el->el_cursor.h++; 802 803 if (GoodStr(T_ip)) /* have to make num chars insert */ 804 term_tputs(el, Str(T_ip), 1); 805 /* pad the inserted char */ 806 807 } while (--num); 808} 809 810 811/* term_clear_EOL(): 812 * clear to end of line. There are num characters to clear 813 */ 814protected void 815term_clear_EOL(EditLine *el, int num) 816{ 817 int i; 818 819 if (EL_CAN_CEOL && GoodStr(T_ce)) 820 term_tputs(el, Str(T_ce), 1); 821 else { 822 for (i = 0; i < num; i++) 823 term__putc(el, ' '); 824 el->el_cursor.h += num; /* have written num spaces */ 825 } 826} 827 828 829/* term_clear_screen(): 830 * Clear the screen 831 */ 832protected void 833term_clear_screen(EditLine *el) 834{ /* clear the whole screen and home */ 835 836 if (GoodStr(T_cl)) 837 /* send the clear screen code */ 838 term_tputs(el, Str(T_cl), Val(T_li)); 839 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 840 term_tputs(el, Str(T_ho), Val(T_li)); /* home */ 841 /* clear to bottom of screen */ 842 term_tputs(el, Str(T_cd), Val(T_li)); 843 } else { 844 term__putc(el, '\r'); 845 term__putc(el, '\n'); 846 } 847} 848 849 850/* term_beep(): 851 * Beep the way the terminal wants us 852 */ 853protected void 854term_beep(EditLine *el) 855{ 856 if (GoodStr(T_bl)) 857 /* what termcap says we should use */ 858 term_tputs(el, Str(T_bl), 1); 859 else 860 term__putc(el, '\007'); /* an ASCII bell; ^G */ 861} 862 863 864#ifdef notdef 865/* term_clear_to_bottom(): 866 * Clear to the bottom of the screen 867 */ 868protected void 869term_clear_to_bottom(EditLine *el) 870{ 871 if (GoodStr(T_cd)) 872 term_tputs(el, Str(T_cd), Val(T_li)); 873 else if (GoodStr(T_ce)) 874 term_tputs(el, Str(T_ce), Val(T_li)); 875} 876#endif 877 878protected void 879term_get(EditLine *el, const char **term) 880{ 881 *term = el->el_term.t_name; 882} 883 884 885/* term_set(): 886 * Read in the terminal capabilities from the requested terminal 887 */ 888protected int 889term_set(EditLine *el, const char *term) 890{ 891 int i; 892 char buf[TC_BUFSIZE]; 893 char *area; 894 const struct termcapstr *t; 895 sigset_t oset, nset; 896 int lins, cols; 897 898 (void) sigemptyset(&nset); 899 (void) sigaddset(&nset, SIGWINCH); 900 (void) sigprocmask(SIG_BLOCK, &nset, &oset); 901 902 area = buf; 903 904 905 if (term == NULL) 906 term = getenv("TERM"); 907 908 if (!term || !term[0]) 909 term = "dumb"; 910 911 if (strcmp(term, "emacs") == 0) 912 el->el_flags |= EDIT_DISABLED; 913 914 memset(el->el_term.t_cap, 0, TC_BUFSIZE); 915 916 i = tgetent(el->el_term.t_cap, term); 917 918 if (i <= 0) { 919 if (i == -1) 920 (void) fprintf(el->el_errfile, 921 "Cannot read termcap database;\n"); 922 else if (i == 0) 923 (void) fprintf(el->el_errfile, 924 "No entry for terminal type \"%s\";\n", term); 925 (void) fprintf(el->el_errfile, 926 "using dumb terminal settings.\n"); 927 Val(T_co) = 80; /* do a dumb terminal */ 928 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 929 Val(T_xt) = Val(T_MT); 930 for (t = tstr; t->name != NULL; t++) 931 term_alloc(el, t, NULL); 932 } else { 933 /* auto/magic margins */ 934 Val(T_am) = tgetflag("am"); 935 Val(T_xn) = tgetflag("xn"); 936 /* Can we tab */ 937 Val(T_pt) = tgetflag("pt"); 938 Val(T_xt) = tgetflag("xt"); 939 /* do we have a meta? */ 940 Val(T_km) = tgetflag("km"); 941 Val(T_MT) = tgetflag("MT"); 942 /* Get the size */ 943 Val(T_co) = tgetnum("co"); 944 Val(T_li) = tgetnum("li"); 945 for (t = tstr; t->name != NULL; t++) { 946 /* XXX: some systems' tgetstr needs non const */ 947 term_alloc(el, t, tgetstr(strchr(t->name, *t->name), 948 &area)); 949 } 950 } 951 952 if (Val(T_co) < 2) 953 Val(T_co) = 80; /* just in case */ 954 if (Val(T_li) < 1) 955 Val(T_li) = 24; 956 957 el->el_term.t_size.v = Val(T_co); 958 el->el_term.t_size.h = Val(T_li); 959 960 term_setflags(el); 961 962 /* get the correct window size */ 963 (void) term_get_size(el, &lins, &cols); 964 if (term_change_size(el, lins, cols) == -1) 965 return (-1); 966 (void) sigprocmask(SIG_SETMASK, &oset, NULL); 967 term_bind_arrow(el); 968 el->el_term.t_name = term; 969 return (i <= 0 ? -1 : 0); 970} 971 972 973/* term_get_size(): 974 * Return the new window size in lines and cols, and 975 * true if the size was changed. 976 */ 977protected int 978term_get_size(EditLine *el, int *lins, int *cols) 979{ 980 981 *cols = Val(T_co); 982 *lins = Val(T_li); 983 984#ifdef TIOCGWINSZ 985 { 986 struct winsize ws; 987 if (ioctl(el->el_infd, TIOCGWINSZ, (ioctl_t) & ws) != -1) { 988 if (ws.ws_col) 989 *cols = ws.ws_col; 990 if (ws.ws_row) 991 *lins = ws.ws_row; 992 } 993 } 994#endif 995#ifdef TIOCGSIZE 996 { 997 struct ttysize ts; 998 if (ioctl(el->el_infd, TIOCGSIZE, (ioctl_t) & ts) != -1) { 999 if (ts.ts_cols) 1000 *cols = ts.ts_cols; 1001 if (ts.ts_lines) 1002 *lins = ts.ts_lines; 1003 } 1004 } 1005#endif 1006 return (Val(T_co) != *cols || Val(T_li) != *lins); 1007} 1008 1009 1010/* term_change_size(): 1011 * Change the size of the terminal 1012 */ 1013protected int 1014term_change_size(EditLine *el, int lins, int cols) 1015{ 1016 /* 1017 * Just in case 1018 */ 1019 Val(T_co) = (cols < 2) ? 80 : cols; 1020 Val(T_li) = (lins < 1) ? 24 : lins; 1021 1022 /* re-make display buffers */ 1023 if (term_rebuffer_display(el) == -1) 1024 return (-1); 1025 re_clear_display(el); 1026 return (0); 1027} 1028 1029 1030/* term_init_arrow(): 1031 * Initialize the arrow key bindings from termcap 1032 */ 1033private void 1034term_init_arrow(EditLine *el) 1035{ 1036 fkey_t *arrow = el->el_term.t_fkey; 1037 1038 arrow[A_K_DN].name = "down"; 1039 arrow[A_K_DN].key = T_kd; 1040 arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; 1041 arrow[A_K_DN].type = XK_CMD; 1042 1043 arrow[A_K_UP].name = "up"; 1044 arrow[A_K_UP].key = T_ku; 1045 arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; 1046 arrow[A_K_UP].type = XK_CMD; 1047 1048 arrow[A_K_LT].name = "left"; 1049 arrow[A_K_LT].key = T_kl; 1050 arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; 1051 arrow[A_K_LT].type = XK_CMD; 1052 1053 arrow[A_K_RT].name = "right"; 1054 arrow[A_K_RT].key = T_kr; 1055 arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; 1056 arrow[A_K_RT].type = XK_CMD; 1057 1058 arrow[A_K_HO].name = "home"; 1059 arrow[A_K_HO].key = T_kh; 1060 arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; 1061 arrow[A_K_HO].type = XK_CMD; 1062 1063 arrow[A_K_EN].name = "end"; 1064 arrow[A_K_EN].key = T_at7; 1065 arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; 1066 arrow[A_K_EN].type = XK_CMD; 1067 1068 arrow[A_K_DE].name = "delete"; 1069 arrow[A_K_DE].key = T_kD; 1070 arrow[A_K_DE].fun.cmd = ED_DELETE_NEXT_CHAR; 1071 arrow[A_K_DE].type = XK_CMD; 1072} 1073 1074 1075/* term_reset_arrow(): 1076 * Reset arrow key bindings 1077 */ 1078private void 1079term_reset_arrow(EditLine *el) 1080{ 1081 fkey_t *arrow = el->el_term.t_fkey; 1082 static const char strA[] = {033, '[', 'A', '\0'}; 1083 static const char strB[] = {033, '[', 'B', '\0'}; 1084 static const char strC[] = {033, '[', 'C', '\0'}; 1085 static const char strD[] = {033, '[', 'D', '\0'}; 1086 static const char strH[] = {033, '[', 'H', '\0'}; 1087 static const char strF[] = {033, '[', 'F', '\0'}; 1088 static const char str1[] = {033, '[', '1', '~', '\0'}; 1089 static const char str4[] = {033, '[', '4', '~', '\0'}; 1090 static const char stOA[] = {033, 'O', 'A', '\0'}; 1091 static const char stOB[] = {033, 'O', 'B', '\0'}; 1092 static const char stOC[] = {033, 'O', 'C', '\0'}; 1093 static const char stOD[] = {033, 'O', 'D', '\0'}; 1094 static const char stOH[] = {033, 'O', 'H', '\0'}; 1095 static const char stOF[] = {033, 'O', 'F', '\0'}; 1096 1097 key_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1098 key_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1099 key_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1100 key_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1101 key_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1102 key_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1103 key_add(el, str1, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1104 key_add(el, str4, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1105 key_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1106 key_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1107 key_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1108 key_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1109 key_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1110 key_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1111 1112 if (el->el_map.type == MAP_VI) { 1113 key_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1114 key_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1115 key_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1116 key_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1117 key_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1118 key_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1119 key_add(el, &str1[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1120 key_add(el, &str4[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1121 key_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1122 key_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1123 key_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1124 key_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1125 key_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1126 key_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1127 } 1128} 1129 1130 1131/* term_set_arrow(): 1132 * Set an arrow key binding 1133 */ 1134protected int 1135term_set_arrow(EditLine *el, const char *name, key_value_t *fun, int type) 1136{ 1137 fkey_t *arrow = el->el_term.t_fkey; 1138 int i; 1139 1140 for (i = 0; i < A_K_NKEYS; i++) 1141 if (strcmp(name, arrow[i].name) == 0) { 1142 arrow[i].fun = *fun; 1143 arrow[i].type = type; 1144 return (0); 1145 } 1146 return (-1); 1147} 1148 1149 1150/* term_clear_arrow(): 1151 * Clear an arrow key binding 1152 */ 1153protected int 1154term_clear_arrow(EditLine *el, const char *name) 1155{ 1156 fkey_t *arrow = el->el_term.t_fkey; 1157 int i; 1158 1159 for (i = 0; i < A_K_NKEYS; i++) 1160 if (strcmp(name, arrow[i].name) == 0) { 1161 arrow[i].type = XK_NOD; 1162 return (0); 1163 } 1164 return (-1); 1165} 1166 1167 1168/* term_print_arrow(): 1169 * Print the arrow key bindings 1170 */ 1171protected void 1172term_print_arrow(EditLine *el, const char *name) 1173{ 1174 int i; 1175 fkey_t *arrow = el->el_term.t_fkey; 1176 1177 for (i = 0; i < A_K_NKEYS; i++) 1178 if (*name == '\0' || strcmp(name, arrow[i].name) == 0) 1179 if (arrow[i].type != XK_NOD) 1180 key_kprint(el, arrow[i].name, &arrow[i].fun, 1181 arrow[i].type); 1182} 1183 1184 1185/* term_bind_arrow(): 1186 * Bind the arrow keys 1187 */ 1188protected void 1189term_bind_arrow(EditLine *el) 1190{ 1191 el_action_t *map; 1192 const el_action_t *dmap; 1193 int i, j; 1194 char *p; 1195 fkey_t *arrow = el->el_term.t_fkey; 1196 1197 /* Check if the components needed are initialized */ 1198 if (el->el_term.t_buf == NULL || el->el_map.key == NULL) 1199 return; 1200 1201 map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; 1202 dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; 1203 1204 term_reset_arrow(el); 1205 1206 for (i = 0; i < A_K_NKEYS; i++) { 1207 p = el->el_term.t_str[arrow[i].key]; 1208 if (p && *p) { 1209 j = (unsigned char) *p; 1210 /* 1211 * Assign the arrow keys only if: 1212 * 1213 * 1. They are multi-character arrow keys and the user 1214 * has not re-assigned the leading character, or 1215 * has re-assigned the leading character to be 1216 * ED_SEQUENCE_LEAD_IN 1217 * 2. They are single arrow keys pointing to an 1218 * unassigned key. 1219 */ 1220 if (arrow[i].type == XK_NOD) 1221 key_clear(el, map, p); 1222 else { 1223 if (p[1] && (dmap[j] == map[j] || 1224 map[j] == ED_SEQUENCE_LEAD_IN)) { 1225 key_add(el, p, &arrow[i].fun, 1226 arrow[i].type); 1227 map[j] = ED_SEQUENCE_LEAD_IN; 1228 } else if (map[j] == ED_UNASSIGNED) { 1229 key_clear(el, map, p); 1230 if (arrow[i].type == XK_CMD) 1231 map[j] = arrow[i].fun.cmd; 1232 else 1233 key_add(el, p, &arrow[i].fun, 1234 arrow[i].type); 1235 } 1236 } 1237 } 1238 } 1239} 1240 1241/* term_putc(): 1242 * Add a character 1243 */ 1244private int 1245term_putc(int c) 1246{ 1247 1248 if (term_outfile == NULL) 1249 return -1; 1250 return fputc(c, term_outfile); 1251} 1252 1253private void 1254term_tputs(EditLine *el, const char *cap, int affcnt) 1255{ 1256#ifdef _REENTRANT 1257 pthread_mutex_lock(&term_mutex); 1258#endif 1259 term_outfile = el->el_outfile; 1260 (void)tputs(cap, affcnt, term_putc); 1261#ifdef _REENTRANT 1262 pthread_mutex_unlock(&term_mutex); 1263#endif 1264} 1265 1266/* term__putc(): 1267 * Add a character 1268 */ 1269protected int 1270term__putc(EditLine *el, int c) 1271{ 1272 1273 return fputc(c, el->el_outfile); 1274} 1275 1276/* term__flush(): 1277 * Flush output 1278 */ 1279protected void 1280term__flush(EditLine *el) 1281{ 1282 1283 (void) fflush(el->el_outfile); 1284} 1285 1286/* term_writec(): 1287 * Write the given character out, in a human readable form 1288 */ 1289protected void 1290term_writec(EditLine *el, int c) 1291{ 1292 char buf[8]; 1293 size_t cnt = key__decode_char(buf, sizeof(buf), 0, c); 1294 buf[cnt] = '\0'; 1295 term_overwrite(el, buf, (size_t)cnt); 1296 term__flush(el); 1297} 1298 1299 1300/* term_telltc(): 1301 * Print the current termcap characteristics 1302 */ 1303protected int 1304/*ARGSUSED*/ 1305term_telltc(EditLine *el, int argc __unused, 1306 const char **argv __unused) 1307{ 1308 const struct termcapstr *t; 1309 char **ts; 1310 char upbuf[EL_BUFSIZ]; 1311 1312 (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); 1313 (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); 1314 (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", 1315 Val(T_co), Val(T_li)); 1316 (void) fprintf(el->el_outfile, 1317 "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); 1318 (void) fprintf(el->el_outfile, 1319 "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); 1320 (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 1321 EL_HAS_AUTO_MARGINS ? "has" : "does not have"); 1322 if (EL_HAS_AUTO_MARGINS) 1323 (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 1324 EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); 1325 1326 for (t = tstr, ts = el->el_term.t_str; t->name != NULL; t++, ts++) { 1327 const char *ub; 1328 if (*ts && **ts) { 1329 (void) key__decode_str(*ts, upbuf, sizeof(upbuf), ""); 1330 ub = upbuf; 1331 } else { 1332 ub = "(empty)"; 1333 } 1334 (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", 1335 t->long_name, t->name, ub); 1336 } 1337 (void) fputc('\n', el->el_outfile); 1338 return (0); 1339} 1340 1341 1342/* term_settc(): 1343 * Change the current terminal characteristics 1344 */ 1345protected int 1346/*ARGSUSED*/ 1347term_settc(EditLine *el, int argc __unused, 1348 const char **argv) 1349{ 1350 const struct termcapstr *ts; 1351 const struct termcapval *tv; 1352 const char *what, *how; 1353 1354 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1355 return -1; 1356 1357 what = argv[1]; 1358 how = argv[2]; 1359 1360 /* 1361 * Do the strings first 1362 */ 1363 for (ts = tstr; ts->name != NULL; ts++) 1364 if (strcmp(ts->name, what) == 0) 1365 break; 1366 1367 if (ts->name != NULL) { 1368 term_alloc(el, ts, how); 1369 term_setflags(el); 1370 return 0; 1371 } 1372 /* 1373 * Do the numeric ones second 1374 */ 1375 for (tv = tval; tv->name != NULL; tv++) 1376 if (strcmp(tv->name, what) == 0) 1377 break; 1378 1379 if (tv->name != NULL) 1380 return -1; 1381 1382 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1383 tv == &tval[T_am] || tv == &tval[T_xn]) { 1384 if (strcmp(how, "yes") == 0) 1385 el->el_term.t_val[tv - tval] = 1; 1386 else if (strcmp(how, "no") == 0) 1387 el->el_term.t_val[tv - tval] = 0; 1388 else { 1389 (void) fprintf(el->el_errfile, 1390 "%s: Bad value `%s'.\n", argv[0], how); 1391 return -1; 1392 } 1393 term_setflags(el); 1394 if (term_change_size(el, Val(T_li), Val(T_co)) == -1) 1395 return -1; 1396 return 0; 1397 } else { 1398 long i; 1399 char *ep; 1400 1401 i = strtol(how, &ep, 10); 1402 if (*ep != '\0') { 1403 (void) fprintf(el->el_errfile, 1404 "%s: Bad value `%s'.\n", argv[0], how); 1405 return -1; 1406 } 1407 el->el_term.t_val[tv - tval] = (int) i; 1408 el->el_term.t_size.v = Val(T_co); 1409 el->el_term.t_size.h = Val(T_li); 1410 if (tv == &tval[T_co] || tv == &tval[T_li]) 1411 if (term_change_size(el, Val(T_li), Val(T_co)) 1412 == -1) 1413 return -1; 1414 return 0; 1415 } 1416} 1417 1418 1419/* term_gettc(): 1420 * Get the current terminal characteristics 1421 */ 1422protected int 1423/*ARGSUSED*/ 1424term_gettc(EditLine *el, int argc __unused, char **argv) 1425{ 1426 const struct termcapstr *ts; 1427 const struct termcapval *tv; 1428 char *what; 1429 void *how; 1430 1431 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1432 return (-1); 1433 1434 what = argv[1]; 1435 how = argv[2]; 1436 1437 /* 1438 * Do the strings first 1439 */ 1440 for (ts = tstr; ts->name != NULL; ts++) 1441 if (strcmp(ts->name, what) == 0) 1442 break; 1443 1444 if (ts->name != NULL) { 1445 *(char **)how = el->el_term.t_str[ts - tstr]; 1446 return 0; 1447 } 1448 /* 1449 * Do the numeric ones second 1450 */ 1451 for (tv = tval; tv->name != NULL; tv++) 1452 if (strcmp(tv->name, what) == 0) 1453 break; 1454 1455 if (tv->name == NULL) 1456 return -1; 1457 1458 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1459 tv == &tval[T_am] || tv == &tval[T_xn]) { 1460 static char yes[] = "yes"; 1461 static char no[] = "no"; 1462 if (el->el_term.t_val[tv - tval]) 1463 *(char **)how = yes; 1464 else 1465 *(char **)how = no; 1466 return 0; 1467 } else { 1468 *(int *)how = el->el_term.t_val[tv - tval]; 1469 return 0; 1470 } 1471} 1472 1473/* term_echotc(): 1474 * Print the termcap string out with variable substitution 1475 */ 1476protected int 1477/*ARGSUSED*/ 1478term_echotc(EditLine *el, int argc __unused, 1479 const char **argv) 1480{ 1481 char *cap, *scap, *ep; 1482 int arg_need, arg_cols, arg_rows; 1483 int verbose = 0, silent = 0; 1484 char *area; 1485 static const char fmts[] = "%s\n", fmtd[] = "%d\n"; 1486 const struct termcapstr *t; 1487 char buf[TC_BUFSIZE]; 1488 long i; 1489 1490 area = buf; 1491 1492 if (argv == NULL || argv[1] == NULL) 1493 return (-1); 1494 argv++; 1495 1496 if (argv[0][0] == '-') { 1497 switch (argv[0][1]) { 1498 case 'v': 1499 verbose = 1; 1500 break; 1501 case 's': 1502 silent = 1; 1503 break; 1504 default: 1505 /* stderror(ERR_NAME | ERR_TCUSAGE); */ 1506 break; 1507 } 1508 argv++; 1509 } 1510 if (!*argv || *argv[0] == '\0') 1511 return (0); 1512 if (strcmp(*argv, "tabs") == 0) { 1513 (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); 1514 return (0); 1515 } else if (strcmp(*argv, "meta") == 0) { 1516 (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); 1517 return (0); 1518 } else if (strcmp(*argv, "xn") == 0) { 1519 (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? 1520 "yes" : "no"); 1521 return (0); 1522 } else if (strcmp(*argv, "am") == 0) { 1523 (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? 1524 "yes" : "no"); 1525 return (0); 1526 } else if (strcmp(*argv, "baud") == 0) { 1527#ifdef notdef 1528 int i; 1529 1530 for (i = 0; baud_rate[i].b_name != NULL; i++) 1531 if (el->el_tty.t_speed == baud_rate[i].b_rate) { 1532 (void) fprintf(el->el_outfile, fmts, 1533 baud_rate[i].b_name); 1534 return (0); 1535 } 1536 (void) fprintf(el->el_outfile, fmtd, 0); 1537#else 1538 (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); 1539#endif 1540 return (0); 1541 } else if (strcmp(*argv, "rows") == 0 || strcmp(*argv, "lines") == 0) { 1542 (void) fprintf(el->el_outfile, fmtd, Val(T_li)); 1543 return (0); 1544 } else if (strcmp(*argv, "cols") == 0) { 1545 (void) fprintf(el->el_outfile, fmtd, Val(T_co)); 1546 return (0); 1547 } 1548 /* 1549 * Try to use our local definition first 1550 */ 1551 scap = NULL; 1552 for (t = tstr; t->name != NULL; t++) 1553 if (strcmp(t->name, *argv) == 0) { 1554 scap = el->el_term.t_str[t - tstr]; 1555 break; 1556 } 1557 if (t->name == NULL) { 1558 /* XXX: some systems' tgetstr needs non const */ 1559 scap = tgetstr(strchr(*argv, **argv), &area); 1560 } 1561 if (!scap || scap[0] == '\0') { 1562 if (!silent) 1563 (void) fprintf(el->el_errfile, 1564 "echotc: Termcap parameter `%s' not found.\n", 1565 *argv); 1566 return (-1); 1567 } 1568 /* 1569 * Count home many values we need for this capability. 1570 */ 1571 for (cap = scap, arg_need = 0; *cap; cap++) 1572 if (*cap == '%') 1573 switch (*++cap) { 1574 case 'd': 1575 case '2': 1576 case '3': 1577 case '.': 1578 case '+': 1579 arg_need++; 1580 break; 1581 case '%': 1582 case '>': 1583 case 'i': 1584 case 'r': 1585 case 'n': 1586 case 'B': 1587 case 'D': 1588 break; 1589 default: 1590 /* 1591 * hpux has lot's of them... 1592 */ 1593 if (verbose) 1594 (void) fprintf(el->el_errfile, 1595 "echotc: Warning: unknown termcap %% `%c'.\n", 1596 *cap); 1597 /* This is bad, but I won't complain */ 1598 break; 1599 } 1600 1601 switch (arg_need) { 1602 case 0: 1603 argv++; 1604 if (*argv && *argv[0]) { 1605 if (!silent) 1606 (void) fprintf(el->el_errfile, 1607 "echotc: Warning: Extra argument `%s'.\n", 1608 *argv); 1609 return (-1); 1610 } 1611 term_tputs(el, scap, 1); 1612 break; 1613 case 1: 1614 argv++; 1615 if (!*argv || *argv[0] == '\0') { 1616 if (!silent) 1617 (void) fprintf(el->el_errfile, 1618 "echotc: Warning: Missing argument.\n"); 1619 return (-1); 1620 } 1621 arg_cols = 0; 1622 i = strtol(*argv, &ep, 10); 1623 if (*ep != '\0' || i < 0) { 1624 if (!silent) 1625 (void) fprintf(el->el_errfile, 1626 "echotc: Bad value `%s' for rows.\n", 1627 *argv); 1628 return (-1); 1629 } 1630 arg_rows = (int) i; 1631 argv++; 1632 if (*argv && *argv[0]) { 1633 if (!silent) 1634 (void) fprintf(el->el_errfile, 1635 "echotc: Warning: Extra argument `%s'.\n", 1636 *argv); 1637 return (-1); 1638 } 1639 term_tputs(el, tgoto(scap, arg_cols, arg_rows), 1); 1640 break; 1641 default: 1642 /* This is wrong, but I will ignore it... */ 1643 if (verbose) 1644 (void) fprintf(el->el_errfile, 1645 "echotc: Warning: Too many required arguments (%d).\n", 1646 arg_need); 1647 /* FALLTHROUGH */ 1648 case 2: 1649 argv++; 1650 if (!*argv || *argv[0] == '\0') { 1651 if (!silent) 1652 (void) fprintf(el->el_errfile, 1653 "echotc: Warning: Missing argument.\n"); 1654 return (-1); 1655 } 1656 i = strtol(*argv, &ep, 10); 1657 if (*ep != '\0' || i < 0) { 1658 if (!silent) 1659 (void) fprintf(el->el_errfile, 1660 "echotc: Bad value `%s' for cols.\n", 1661 *argv); 1662 return (-1); 1663 } 1664 arg_cols = (int) i; 1665 argv++; 1666 if (!*argv || *argv[0] == '\0') { 1667 if (!silent) 1668 (void) fprintf(el->el_errfile, 1669 "echotc: Warning: Missing argument.\n"); 1670 return (-1); 1671 } 1672 i = strtol(*argv, &ep, 10); 1673 if (*ep != '\0' || i < 0) { 1674 if (!silent) 1675 (void) fprintf(el->el_errfile, 1676 "echotc: Bad value `%s' for rows.\n", 1677 *argv); 1678 return (-1); 1679 } 1680 arg_rows = (int) i; 1681 if (*ep != '\0') { 1682 if (!silent) 1683 (void) fprintf(el->el_errfile, 1684 "echotc: Bad value `%s'.\n", *argv); 1685 return (-1); 1686 } 1687 argv++; 1688 if (*argv && *argv[0]) { 1689 if (!silent) 1690 (void) fprintf(el->el_errfile, 1691 "echotc: Warning: Extra argument `%s'.\n", 1692 *argv); 1693 return (-1); 1694 } 1695 term_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows); 1696 break; 1697 } 1698 return (0); 1699} 1700