term.c revision 167457
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 1.45 2006/03/18 19:23:14 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: head/lib/libedit/term.c 167457 2007-03-11 18:30:22Z stefanf $"); 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_str 38 227 { NULL, NULL } 228}; 229 230private const struct termcapval { 231 const char *name; 232 const char *long_name; 233} tval[] = { 234#define T_am 0 235 { "am", "has automatic margins" }, 236#define T_pt 1 237 { "pt", "has physical tabs" }, 238#define T_li 2 239 { "li", "Number of lines" }, 240#define T_co 3 241 { "co", "Number of columns" }, 242#define T_km 4 243 { "km", "Has meta key" }, 244#define T_xt 5 245 { "xt", "Tab chars destructive" }, 246#define T_xn 6 247 { "xn", "newline ignored at right margin" }, 248#define T_MT 7 249 { "MT", "Has meta key" }, /* XXX? */ 250#define T_val 8 251 { NULL, NULL, } 252}; 253/* do two or more of the attributes use me */ 254 255private void term_setflags(EditLine *); 256private int term_rebuffer_display(EditLine *); 257private void term_free_display(EditLine *); 258private int term_alloc_display(EditLine *); 259private void term_alloc(EditLine *, const struct termcapstr *, const char *); 260private void term_init_arrow(EditLine *); 261private void term_reset_arrow(EditLine *); 262 263 264private FILE *term_outfile = NULL; /* XXX: How do we fix that? */ 265 266 267/* term_setflags(): 268 * Set the terminal capability flags 269 */ 270private void 271term_setflags(EditLine *el) 272{ 273 EL_FLAGS = 0; 274 if (el->el_tty.t_tabs) 275 EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; 276 277 EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; 278 EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; 279 EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; 280 EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? 281 TERM_CAN_INSERT : 0; 282 EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; 283 EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; 284 EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; 285 286 if (GoodStr(T_me) && GoodStr(T_ue)) 287 EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? 288 TERM_CAN_ME : 0; 289 else 290 EL_FLAGS &= ~TERM_CAN_ME; 291 if (GoodStr(T_me) && GoodStr(T_se)) 292 EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? 293 TERM_CAN_ME : 0; 294 295 296#ifdef DEBUG_SCREEN 297 if (!EL_CAN_UP) { 298 (void) fprintf(el->el_errfile, 299 "WARNING: Your terminal cannot move up.\n"); 300 (void) fprintf(el->el_errfile, 301 "Editing may be odd for long lines.\n"); 302 } 303 if (!EL_CAN_CEOL) 304 (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); 305 if (!EL_CAN_DELETE) 306 (void) fprintf(el->el_errfile, "no delete char capability.\n"); 307 if (!EL_CAN_INSERT) 308 (void) fprintf(el->el_errfile, "no insert char capability.\n"); 309#endif /* DEBUG_SCREEN */ 310} 311 312 313/* term_init(): 314 * Initialize the terminal stuff 315 */ 316protected int 317term_init(EditLine *el) 318{ 319 320 el->el_term.t_buf = (char *) el_malloc(TC_BUFSIZE); 321 if (el->el_term.t_buf == NULL) 322 return (-1); 323 el->el_term.t_cap = (char *) el_malloc(TC_BUFSIZE); 324 if (el->el_term.t_cap == NULL) 325 return (-1); 326 el->el_term.t_fkey = (fkey_t *) el_malloc(A_K_NKEYS * sizeof(fkey_t)); 327 if (el->el_term.t_fkey == NULL) 328 return (-1); 329 el->el_term.t_loc = 0; 330 el->el_term.t_str = (char **) el_malloc(T_str * sizeof(char *)); 331 if (el->el_term.t_str == NULL) 332 return (-1); 333 (void) memset(el->el_term.t_str, 0, T_str * sizeof(char *)); 334 el->el_term.t_val = (int *) el_malloc(T_val * sizeof(int)); 335 if (el->el_term.t_val == NULL) 336 return (-1); 337 (void) memset(el->el_term.t_val, 0, T_val * sizeof(int)); 338 term_outfile = el->el_outfile; 339 term_init_arrow(el); 340 (void) term_set(el, NULL); 341 return (0); 342} 343 344/* term_end(): 345 * Clean up the terminal stuff 346 */ 347protected void 348term_end(EditLine *el) 349{ 350 351 el_free((ptr_t) el->el_term.t_buf); 352 el->el_term.t_buf = NULL; 353 el_free((ptr_t) el->el_term.t_cap); 354 el->el_term.t_cap = NULL; 355 el->el_term.t_loc = 0; 356 el_free((ptr_t) el->el_term.t_str); 357 el->el_term.t_str = NULL; 358 el_free((ptr_t) el->el_term.t_val); 359 el->el_term.t_val = NULL; 360 el_free((ptr_t) el->el_term.t_fkey); 361 el->el_term.t_fkey = NULL; 362 term_free_display(el); 363} 364 365 366/* term_alloc(): 367 * Maintain a string pool for termcap strings 368 */ 369private void 370term_alloc(EditLine *el, const struct termcapstr *t, const char *cap) 371{ 372 char termbuf[TC_BUFSIZE]; 373 int tlen, clen; 374 char **tlist = el->el_term.t_str; 375 char **tmp, **str = &tlist[t - tstr]; 376 377 if (cap == NULL || *cap == '\0') { 378 *str = NULL; 379 return; 380 } else 381 clen = strlen(cap); 382 383 tlen = *str == NULL ? 0 : strlen(*str); 384 385 /* 386 * New string is shorter; no need to allocate space 387 */ 388 if (clen <= tlen) { 389 if (*str) 390 (void) strcpy(*str, cap); /* XXX strcpy is safe */ 391 return; 392 } 393 /* 394 * New string is longer; see if we have enough space to append 395 */ 396 if (el->el_term.t_loc + 3 < TC_BUFSIZE) { 397 /* XXX strcpy is safe */ 398 (void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], 399 cap); 400 el->el_term.t_loc += clen + 1; /* one for \0 */ 401 return; 402 } 403 /* 404 * Compact our buffer; no need to check compaction, cause we know it 405 * fits... 406 */ 407 tlen = 0; 408 for (tmp = tlist; tmp < &tlist[T_str]; tmp++) 409 if (*tmp != NULL && *tmp != '\0' && *tmp != *str) { 410 char *ptr; 411 412 for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) 413 continue; 414 termbuf[tlen++] = '\0'; 415 } 416 memcpy(el->el_term.t_buf, termbuf, TC_BUFSIZE); 417 el->el_term.t_loc = tlen; 418 if (el->el_term.t_loc + 3 >= TC_BUFSIZE) { 419 (void) fprintf(el->el_errfile, 420 "Out of termcap string space.\n"); 421 return; 422 } 423 /* XXX strcpy is safe */ 424 (void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap); 425 el->el_term.t_loc += clen + 1; /* one for \0 */ 426 return; 427} 428 429 430/* term_rebuffer_display(): 431 * Rebuffer the display after the screen changed size 432 */ 433private int 434term_rebuffer_display(EditLine *el) 435{ 436 coord_t *c = &el->el_term.t_size; 437 438 term_free_display(el); 439 440 c->h = Val(T_co); 441 c->v = Val(T_li); 442 443 if (term_alloc_display(el) == -1) 444 return (-1); 445 return (0); 446} 447 448 449/* term_alloc_display(): 450 * Allocate a new display. 451 */ 452private int 453term_alloc_display(EditLine *el) 454{ 455 int i; 456 char **b; 457 coord_t *c = &el->el_term.t_size; 458 459 b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1))); 460 if (b == NULL) 461 return (-1); 462 for (i = 0; i < c->v; i++) { 463 b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1))); 464 if (b[i] == NULL) { 465 while (--i >= 0) 466 el_free((ptr_t) b[i]); 467 el_free((ptr_t) b); 468 return (-1); 469 } 470 } 471 b[c->v] = NULL; 472 el->el_display = b; 473 474 b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1))); 475 if (b == NULL) 476 return (-1); 477 for (i = 0; i < c->v; i++) { 478 b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1))); 479 if (b[i] == NULL) { 480 while (--i >= 0) 481 el_free((ptr_t) b[i]); 482 el_free((ptr_t) b); 483 return (-1); 484 } 485 } 486 b[c->v] = NULL; 487 el->el_vdisplay = b; 488 return (0); 489} 490 491 492/* term_free_display(): 493 * Free the display buffers 494 */ 495private void 496term_free_display(EditLine *el) 497{ 498 char **b; 499 char **bufp; 500 501 b = el->el_display; 502 el->el_display = NULL; 503 if (b != NULL) { 504 for (bufp = b; *bufp != NULL; bufp++) 505 el_free((ptr_t) * bufp); 506 el_free((ptr_t) b); 507 } 508 b = el->el_vdisplay; 509 el->el_vdisplay = NULL; 510 if (b != NULL) { 511 for (bufp = b; *bufp != NULL; bufp++) 512 el_free((ptr_t) * bufp); 513 el_free((ptr_t) b); 514 } 515} 516 517 518/* term_move_to_line(): 519 * move to line <where> (first line == 0) 520 * as efficiently as possible 521 */ 522protected void 523term_move_to_line(EditLine *el, int where) 524{ 525 int del; 526 527 if (where == el->el_cursor.v) 528 return; 529 530 if (where > el->el_term.t_size.v) { 531#ifdef DEBUG_SCREEN 532 (void) fprintf(el->el_errfile, 533 "term_move_to_line: where is ridiculous: %d\r\n", where); 534#endif /* DEBUG_SCREEN */ 535 return; 536 } 537 if ((del = where - el->el_cursor.v) > 0) { 538 while (del > 0) { 539 if (EL_HAS_AUTO_MARGINS && 540 el->el_display[el->el_cursor.v][0] != '\0') { 541 /* move without newline */ 542 term_move_to_char(el, el->el_term.t_size.h - 1); 543 term_overwrite(el, 544 &el->el_display[el->el_cursor.v][el->el_cursor.h], 545 1); 546 /* updates Cursor */ 547 del--; 548 } else { 549 if ((del > 1) && GoodStr(T_DO)) { 550 (void) tputs(tgoto(Str(T_DO), del, del), 551 del, term__putc); 552 del = 0; 553 } else { 554 for (; del > 0; del--) 555 term__putc('\n'); 556 /* because the \n will become \r\n */ 557 el->el_cursor.h = 0; 558 } 559 } 560 } 561 } else { /* del < 0 */ 562 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 563 (void) tputs(tgoto(Str(T_UP), -del, -del), -del, 564 term__putc); 565 else { 566 if (GoodStr(T_up)) 567 for (; del < 0; del++) 568 (void) tputs(Str(T_up), 1, term__putc); 569 } 570 } 571 el->el_cursor.v = where;/* now where is here */ 572} 573 574 575/* term_move_to_char(): 576 * Move to the character position specified 577 */ 578protected void 579term_move_to_char(EditLine *el, int where) 580{ 581 int del, i; 582 583mc_again: 584 if (where == el->el_cursor.h) 585 return; 586 587 if (where > el->el_term.t_size.h) { 588#ifdef DEBUG_SCREEN 589 (void) fprintf(el->el_errfile, 590 "term_move_to_char: where is riduculous: %d\r\n", where); 591#endif /* DEBUG_SCREEN */ 592 return; 593 } 594 if (!where) { /* if where is first column */ 595 term__putc('\r'); /* do a CR */ 596 el->el_cursor.h = 0; 597 return; 598 } 599 del = where - el->el_cursor.h; 600 601 if ((del < -4 || del > 4) && GoodStr(T_ch)) 602 /* go there directly */ 603 (void) tputs(tgoto(Str(T_ch), where, where), where, term__putc); 604 else { 605 if (del > 0) { /* moving forward */ 606 if ((del > 4) && GoodStr(T_RI)) 607 (void) tputs(tgoto(Str(T_RI), del, del), 608 del, term__putc); 609 else { 610 /* if I can do tabs, use them */ 611 if (EL_CAN_TAB) { 612 if ((el->el_cursor.h & 0370) != 613 (where & 0370)) { 614 /* if not within tab stop */ 615 for (i = 616 (el->el_cursor.h & 0370); 617 i < (where & 0370); 618 i += 8) 619 term__putc('\t'); 620 /* then tab over */ 621 el->el_cursor.h = where & 0370; 622 } 623 } 624 /* 625 * it's usually cheaper to just write the 626 * chars, so we do. 627 */ 628 /* 629 * NOTE THAT term_overwrite() WILL CHANGE 630 * el->el_cursor.h!!! 631 */ 632 term_overwrite(el, 633 &el->el_display[el->el_cursor.v][el->el_cursor.h], 634 where - el->el_cursor.h); 635 636 } 637 } else { /* del < 0 := moving backward */ 638 if ((-del > 4) && GoodStr(T_LE)) 639 (void) tputs(tgoto(Str(T_LE), -del, -del), 640 -del, term__putc); 641 else { /* can't go directly there */ 642 /* 643 * if the "cost" is greater than the "cost" 644 * from col 0 645 */ 646 if (EL_CAN_TAB ? 647 ((unsigned int)-del > 648 (((unsigned int) where >> 3) + 649 (where & 07))) 650 : (-del > where)) { 651 term__putc('\r'); /* do a CR */ 652 el->el_cursor.h = 0; 653 goto mc_again; /* and try again */ 654 } 655 for (i = 0; i < -del; i++) 656 term__putc('\b'); 657 } 658 } 659 } 660 el->el_cursor.h = where; /* now where is here */ 661} 662 663 664/* term_overwrite(): 665 * Overstrike num characters 666 */ 667protected void 668term_overwrite(EditLine *el, const char *cp, int n) 669{ 670 if (n <= 0) 671 return; /* catch bugs */ 672 673 if (n > el->el_term.t_size.h) { 674#ifdef DEBUG_SCREEN 675 (void) fprintf(el->el_errfile, 676 "term_overwrite: n is riduculous: %d\r\n", n); 677#endif /* DEBUG_SCREEN */ 678 return; 679 } 680 do { 681 term__putc(*cp++); 682 el->el_cursor.h++; 683 } while (--n); 684 685 if (el->el_cursor.h >= el->el_term.t_size.h) { /* wrap? */ 686 if (EL_HAS_AUTO_MARGINS) { /* yes */ 687 el->el_cursor.h = 0; 688 el->el_cursor.v++; 689 if (EL_HAS_MAGIC_MARGINS) { 690 /* force the wrap to avoid the "magic" 691 * situation */ 692 char c; 693 if ((c = el->el_display[el->el_cursor.v][el->el_cursor.h]) 694 != '\0') 695 term_overwrite(el, &c, 1); 696 else 697 term__putc(' '); 698 el->el_cursor.h = 1; 699 } 700 } else /* no wrap, but cursor stays on screen */ 701 el->el_cursor.h = el->el_term.t_size.h; 702 } 703} 704 705 706/* term_deletechars(): 707 * Delete num characters 708 */ 709protected void 710term_deletechars(EditLine *el, int num) 711{ 712 if (num <= 0) 713 return; 714 715 if (!EL_CAN_DELETE) { 716#ifdef DEBUG_EDIT 717 (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); 718#endif /* DEBUG_EDIT */ 719 return; 720 } 721 if (num > el->el_term.t_size.h) { 722#ifdef DEBUG_SCREEN 723 (void) fprintf(el->el_errfile, 724 "term_deletechars: num is riduculous: %d\r\n", num); 725#endif /* DEBUG_SCREEN */ 726 return; 727 } 728 if (GoodStr(T_DC)) /* if I have multiple delete */ 729 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more 730 * expen. */ 731 (void) tputs(tgoto(Str(T_DC), num, num), 732 num, term__putc); 733 return; 734 } 735 if (GoodStr(T_dm)) /* if I have delete mode */ 736 (void) tputs(Str(T_dm), 1, term__putc); 737 738 if (GoodStr(T_dc)) /* else do one at a time */ 739 while (num--) 740 (void) tputs(Str(T_dc), 1, term__putc); 741 742 if (GoodStr(T_ed)) /* if I have delete mode */ 743 (void) tputs(Str(T_ed), 1, term__putc); 744} 745 746 747/* term_insertwrite(): 748 * Puts terminal in insert character mode or inserts num 749 * characters in the line 750 */ 751protected void 752term_insertwrite(EditLine *el, char *cp, int num) 753{ 754 if (num <= 0) 755 return; 756 if (!EL_CAN_INSERT) { 757#ifdef DEBUG_EDIT 758 (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); 759#endif /* DEBUG_EDIT */ 760 return; 761 } 762 if (num > el->el_term.t_size.h) { 763#ifdef DEBUG_SCREEN 764 (void) fprintf(el->el_errfile, 765 "StartInsert: num is riduculous: %d\r\n", num); 766#endif /* DEBUG_SCREEN */ 767 return; 768 } 769 if (GoodStr(T_IC)) /* if I have multiple insert */ 770 if ((num > 1) || !GoodStr(T_ic)) { 771 /* if ic would be more expensive */ 772 (void) tputs(tgoto(Str(T_IC), num, num), 773 num, term__putc); 774 term_overwrite(el, cp, num); 775 /* this updates el_cursor.h */ 776 return; 777 } 778 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 779 (void) tputs(Str(T_im), 1, term__putc); 780 781 el->el_cursor.h += num; 782 do 783 term__putc(*cp++); 784 while (--num); 785 786 if (GoodStr(T_ip)) /* have to make num chars insert */ 787 (void) tputs(Str(T_ip), 1, term__putc); 788 789 (void) tputs(Str(T_ei), 1, term__putc); 790 return; 791 } 792 do { 793 if (GoodStr(T_ic)) /* have to make num chars insert */ 794 (void) tputs(Str(T_ic), 1, term__putc); 795 /* insert a char */ 796 797 term__putc(*cp++); 798 799 el->el_cursor.h++; 800 801 if (GoodStr(T_ip)) /* have to make num chars insert */ 802 (void) tputs(Str(T_ip), 1, term__putc); 803 /* pad the inserted char */ 804 805 } while (--num); 806} 807 808 809/* term_clear_EOL(): 810 * clear to end of line. There are num characters to clear 811 */ 812protected void 813term_clear_EOL(EditLine *el, int num) 814{ 815 int i; 816 817 if (EL_CAN_CEOL && GoodStr(T_ce)) 818 (void) tputs(Str(T_ce), 1, term__putc); 819 else { 820 for (i = 0; i < num; i++) 821 term__putc(' '); 822 el->el_cursor.h += num; /* have written num spaces */ 823 } 824} 825 826 827/* term_clear_screen(): 828 * Clear the screen 829 */ 830protected void 831term_clear_screen(EditLine *el) 832{ /* clear the whole screen and home */ 833 834 if (GoodStr(T_cl)) 835 /* send the clear screen code */ 836 (void) tputs(Str(T_cl), Val(T_li), term__putc); 837 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 838 (void) tputs(Str(T_ho), Val(T_li), term__putc); /* home */ 839 /* clear to bottom of screen */ 840 (void) tputs(Str(T_cd), Val(T_li), term__putc); 841 } else { 842 term__putc('\r'); 843 term__putc('\n'); 844 } 845} 846 847 848/* term_beep(): 849 * Beep the way the terminal wants us 850 */ 851protected void 852term_beep(EditLine *el) 853{ 854 if (GoodStr(T_bl)) 855 /* what termcap says we should use */ 856 (void) tputs(Str(T_bl), 1, term__putc); 857 else 858 term__putc('\007'); /* an ASCII bell; ^G */ 859} 860 861 862#ifdef notdef 863/* term_clear_to_bottom(): 864 * Clear to the bottom of the screen 865 */ 866protected void 867term_clear_to_bottom(EditLine *el) 868{ 869 if (GoodStr(T_cd)) 870 (void) tputs(Str(T_cd), Val(T_li), term__putc); 871 else if (GoodStr(T_ce)) 872 (void) tputs(Str(T_ce), Val(T_li), term__putc); 873} 874#endif 875 876protected void 877term_get(EditLine *el, const char **term) 878{ 879 *term = el->el_term.t_name; 880} 881 882 883/* term_set(): 884 * Read in the terminal capabilities from the requested terminal 885 */ 886protected int 887term_set(EditLine *el, const char *term) 888{ 889 int i; 890 char buf[TC_BUFSIZE]; 891 char *area; 892 const struct termcapstr *t; 893 sigset_t oset, nset; 894 int lins, cols; 895 896 (void) sigemptyset(&nset); 897 (void) sigaddset(&nset, SIGWINCH); 898 (void) sigprocmask(SIG_BLOCK, &nset, &oset); 899 900 area = buf; 901 902 903 if (term == NULL) 904 term = getenv("TERM"); 905 906 if (!term || !term[0]) 907 term = "dumb"; 908 909 if (strcmp(term, "emacs") == 0) 910 el->el_flags |= EDIT_DISABLED; 911 912 memset(el->el_term.t_cap, 0, TC_BUFSIZE); 913 914 i = tgetent(el->el_term.t_cap, term); 915 916 if (i <= 0) { 917 if (i == -1) 918 (void) fprintf(el->el_errfile, 919 "Cannot read termcap database;\n"); 920 else if (i == 0) 921 (void) fprintf(el->el_errfile, 922 "No entry for terminal type \"%s\";\n", term); 923 (void) fprintf(el->el_errfile, 924 "using dumb terminal settings.\n"); 925 Val(T_co) = 80; /* do a dumb terminal */ 926 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 927 Val(T_xt) = Val(T_MT); 928 for (t = tstr; t->name != NULL; t++) 929 term_alloc(el, t, NULL); 930 } else { 931 /* auto/magic margins */ 932 Val(T_am) = tgetflag("am"); 933 Val(T_xn) = tgetflag("xn"); 934 /* Can we tab */ 935 Val(T_pt) = tgetflag("pt"); 936 Val(T_xt) = tgetflag("xt"); 937 /* do we have a meta? */ 938 Val(T_km) = tgetflag("km"); 939 Val(T_MT) = tgetflag("MT"); 940 /* Get the size */ 941 Val(T_co) = tgetnum("co"); 942 Val(T_li) = tgetnum("li"); 943 for (t = tstr; t->name != NULL; t++) { 944 /* XXX: some systems' tgetstr needs non const */ 945 term_alloc(el, t, tgetstr(strchr(t->name, *t->name), 946 &area)); 947 } 948 } 949 950 if (Val(T_co) < 2) 951 Val(T_co) = 80; /* just in case */ 952 if (Val(T_li) < 1) 953 Val(T_li) = 24; 954 955 el->el_term.t_size.v = Val(T_co); 956 el->el_term.t_size.h = Val(T_li); 957 958 term_setflags(el); 959 960 /* get the correct window size */ 961 (void) term_get_size(el, &lins, &cols); 962 if (term_change_size(el, lins, cols) == -1) 963 return (-1); 964 (void) sigprocmask(SIG_SETMASK, &oset, NULL); 965 term_bind_arrow(el); 966 el->el_term.t_name = term; 967 return (i <= 0 ? -1 : 0); 968} 969 970 971/* term_get_size(): 972 * Return the new window size in lines and cols, and 973 * true if the size was changed. 974 */ 975protected int 976term_get_size(EditLine *el, int *lins, int *cols) 977{ 978 979 *cols = Val(T_co); 980 *lins = Val(T_li); 981 982#ifdef TIOCGWINSZ 983 { 984 struct winsize ws; 985 if (ioctl(el->el_infd, TIOCGWINSZ, (ioctl_t) & ws) != -1) { 986 if (ws.ws_col) 987 *cols = ws.ws_col; 988 if (ws.ws_row) 989 *lins = ws.ws_row; 990 } 991 } 992#endif 993#ifdef TIOCGSIZE 994 { 995 struct ttysize ts; 996 if (ioctl(el->el_infd, TIOCGSIZE, (ioctl_t) & ts) != -1) { 997 if (ts.ts_cols) 998 *cols = ts.ts_cols; 999 if (ts.ts_lines) 1000 *lins = ts.ts_lines; 1001 } 1002 } 1003#endif 1004 return (Val(T_co) != *cols || Val(T_li) != *lins); 1005} 1006 1007 1008/* term_change_size(): 1009 * Change the size of the terminal 1010 */ 1011protected int 1012term_change_size(EditLine *el, int lins, int cols) 1013{ 1014 /* 1015 * Just in case 1016 */ 1017 Val(T_co) = (cols < 2) ? 80 : cols; 1018 Val(T_li) = (lins < 1) ? 24 : lins; 1019 1020 /* re-make display buffers */ 1021 if (term_rebuffer_display(el) == -1) 1022 return (-1); 1023 re_clear_display(el); 1024 return (0); 1025} 1026 1027 1028/* term_init_arrow(): 1029 * Initialize the arrow key bindings from termcap 1030 */ 1031private void 1032term_init_arrow(EditLine *el) 1033{ 1034 fkey_t *arrow = el->el_term.t_fkey; 1035 1036 arrow[A_K_DN].name = "down"; 1037 arrow[A_K_DN].key = T_kd; 1038 arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; 1039 arrow[A_K_DN].type = XK_CMD; 1040 1041 arrow[A_K_UP].name = "up"; 1042 arrow[A_K_UP].key = T_ku; 1043 arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; 1044 arrow[A_K_UP].type = XK_CMD; 1045 1046 arrow[A_K_LT].name = "left"; 1047 arrow[A_K_LT].key = T_kl; 1048 arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; 1049 arrow[A_K_LT].type = XK_CMD; 1050 1051 arrow[A_K_RT].name = "right"; 1052 arrow[A_K_RT].key = T_kr; 1053 arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; 1054 arrow[A_K_RT].type = XK_CMD; 1055 1056 arrow[A_K_HO].name = "home"; 1057 arrow[A_K_HO].key = T_kh; 1058 arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; 1059 arrow[A_K_HO].type = XK_CMD; 1060 1061 arrow[A_K_EN].name = "end"; 1062 arrow[A_K_EN].key = T_at7; 1063 arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; 1064 arrow[A_K_EN].type = XK_CMD; 1065} 1066 1067 1068/* term_reset_arrow(): 1069 * Reset arrow key bindings 1070 */ 1071private void 1072term_reset_arrow(EditLine *el) 1073{ 1074 fkey_t *arrow = el->el_term.t_fkey; 1075 static const char strA[] = {033, '[', 'A', '\0'}; 1076 static const char strB[] = {033, '[', 'B', '\0'}; 1077 static const char strC[] = {033, '[', 'C', '\0'}; 1078 static const char strD[] = {033, '[', 'D', '\0'}; 1079 static const char strH[] = {033, '[', 'H', '\0'}; 1080 static const char strF[] = {033, '[', 'F', '\0'}; 1081 static const char str1[] = {033, '[', '1', '~', '\0'}; 1082 static const char str4[] = {033, '[', '4', '~', '\0'}; 1083 static const char stOA[] = {033, 'O', 'A', '\0'}; 1084 static const char stOB[] = {033, 'O', 'B', '\0'}; 1085 static const char stOC[] = {033, 'O', 'C', '\0'}; 1086 static const char stOD[] = {033, 'O', 'D', '\0'}; 1087 static const char stOH[] = {033, 'O', 'H', '\0'}; 1088 static const char stOF[] = {033, 'O', 'F', '\0'}; 1089 1090 key_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1091 key_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1092 key_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1093 key_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1094 key_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1095 key_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1096 key_add(el, str1, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1097 key_add(el, str4, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1098 key_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1099 key_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1100 key_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1101 key_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1102 key_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1103 key_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1104 1105 if (el->el_map.type == MAP_VI) { 1106 key_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1107 key_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1108 key_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1109 key_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1110 key_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1111 key_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1112 key_add(el, &str1[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1113 key_add(el, &str4[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1114 key_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1115 key_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1116 key_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1117 key_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1118 key_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1119 key_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1120 } 1121} 1122 1123 1124/* term_set_arrow(): 1125 * Set an arrow key binding 1126 */ 1127protected int 1128term_set_arrow(EditLine *el, const char *name, key_value_t *fun, int type) 1129{ 1130 fkey_t *arrow = el->el_term.t_fkey; 1131 int i; 1132 1133 for (i = 0; i < A_K_NKEYS; i++) 1134 if (strcmp(name, arrow[i].name) == 0) { 1135 arrow[i].fun = *fun; 1136 arrow[i].type = type; 1137 return (0); 1138 } 1139 return (-1); 1140} 1141 1142 1143/* term_clear_arrow(): 1144 * Clear an arrow key binding 1145 */ 1146protected int 1147term_clear_arrow(EditLine *el, const char *name) 1148{ 1149 fkey_t *arrow = el->el_term.t_fkey; 1150 int i; 1151 1152 for (i = 0; i < A_K_NKEYS; i++) 1153 if (strcmp(name, arrow[i].name) == 0) { 1154 arrow[i].type = XK_NOD; 1155 return (0); 1156 } 1157 return (-1); 1158} 1159 1160 1161/* term_print_arrow(): 1162 * Print the arrow key bindings 1163 */ 1164protected void 1165term_print_arrow(EditLine *el, const char *name) 1166{ 1167 int i; 1168 fkey_t *arrow = el->el_term.t_fkey; 1169 1170 for (i = 0; i < A_K_NKEYS; i++) 1171 if (*name == '\0' || strcmp(name, arrow[i].name) == 0) 1172 if (arrow[i].type != XK_NOD) 1173 key_kprint(el, arrow[i].name, &arrow[i].fun, 1174 arrow[i].type); 1175} 1176 1177 1178/* term_bind_arrow(): 1179 * Bind the arrow keys 1180 */ 1181protected void 1182term_bind_arrow(EditLine *el) 1183{ 1184 el_action_t *map; 1185 const el_action_t *dmap; 1186 int i, j; 1187 char *p; 1188 fkey_t *arrow = el->el_term.t_fkey; 1189 1190 /* Check if the components needed are initialized */ 1191 if (el->el_term.t_buf == NULL || el->el_map.key == NULL) 1192 return; 1193 1194 map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; 1195 dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; 1196 1197 term_reset_arrow(el); 1198 1199 for (i = 0; i < A_K_NKEYS; i++) { 1200 p = el->el_term.t_str[arrow[i].key]; 1201 if (p && *p) { 1202 j = (unsigned char) *p; 1203 /* 1204 * Assign the arrow keys only if: 1205 * 1206 * 1. They are multi-character arrow keys and the user 1207 * has not re-assigned the leading character, or 1208 * has re-assigned the leading character to be 1209 * ED_SEQUENCE_LEAD_IN 1210 * 2. They are single arrow keys pointing to an 1211 * unassigned key. 1212 */ 1213 if (arrow[i].type == XK_NOD) 1214 key_clear(el, map, p); 1215 else { 1216 if (p[1] && (dmap[j] == map[j] || 1217 map[j] == ED_SEQUENCE_LEAD_IN)) { 1218 key_add(el, p, &arrow[i].fun, 1219 arrow[i].type); 1220 map[j] = ED_SEQUENCE_LEAD_IN; 1221 } else if (map[j] == ED_UNASSIGNED) { 1222 key_clear(el, map, p); 1223 if (arrow[i].type == XK_CMD) 1224 map[j] = arrow[i].fun.cmd; 1225 else 1226 key_add(el, p, &arrow[i].fun, 1227 arrow[i].type); 1228 } 1229 } 1230 } 1231 } 1232} 1233 1234 1235/* term__putc(): 1236 * Add a character 1237 */ 1238protected int 1239term__putc(int c) 1240{ 1241 1242 return (fputc(c, term_outfile)); 1243} 1244 1245 1246/* term__flush(): 1247 * Flush output 1248 */ 1249protected void 1250term__flush(void) 1251{ 1252 1253 (void) fflush(term_outfile); 1254} 1255 1256/* term_writec(): 1257 * Write the given character out, in a human readable form 1258 */ 1259protected void 1260term_writec(EditLine *el, int c) 1261{ 1262 char buf[8]; 1263 int cnt = key__decode_char(buf, sizeof(buf), 0, c); 1264 buf[cnt] = '\0'; 1265 term_overwrite(el, buf, cnt); 1266 term__flush(); 1267} 1268 1269 1270/* term_telltc(): 1271 * Print the current termcap characteristics 1272 */ 1273protected int 1274/*ARGSUSED*/ 1275term_telltc(EditLine *el, int argc __unused, 1276 const char **argv __unused) 1277{ 1278 const struct termcapstr *t; 1279 char **ts; 1280 char upbuf[EL_BUFSIZ]; 1281 1282 (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); 1283 (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); 1284 (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", 1285 Val(T_co), Val(T_li)); 1286 (void) fprintf(el->el_outfile, 1287 "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); 1288 (void) fprintf(el->el_outfile, 1289 "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); 1290 (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 1291 EL_HAS_AUTO_MARGINS ? "has" : "does not have"); 1292 if (EL_HAS_AUTO_MARGINS) 1293 (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 1294 EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); 1295 1296 for (t = tstr, ts = el->el_term.t_str; t->name != NULL; t++, ts++) { 1297 const char *ub; 1298 if (*ts && **ts) { 1299 (void) key__decode_str(*ts, upbuf, sizeof(upbuf), ""); 1300 ub = upbuf; 1301 } else { 1302 ub = "(empty)"; 1303 } 1304 (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", 1305 t->long_name, t->name, ub); 1306 } 1307 (void) fputc('\n', el->el_outfile); 1308 return (0); 1309} 1310 1311 1312/* term_settc(): 1313 * Change the current terminal characteristics 1314 */ 1315protected int 1316/*ARGSUSED*/ 1317term_settc(EditLine *el, int argc __unused, 1318 const char **argv) 1319{ 1320 const struct termcapstr *ts; 1321 const struct termcapval *tv; 1322 const char *what, *how; 1323 1324 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1325 return (-1); 1326 1327 what = argv[1]; 1328 how = argv[2]; 1329 1330 /* 1331 * Do the strings first 1332 */ 1333 for (ts = tstr; ts->name != NULL; ts++) 1334 if (strcmp(ts->name, what) == 0) 1335 break; 1336 1337 if (ts->name != NULL) { 1338 term_alloc(el, ts, how); 1339 term_setflags(el); 1340 return (0); 1341 } 1342 /* 1343 * Do the numeric ones second 1344 */ 1345 for (tv = tval; tv->name != NULL; tv++) 1346 if (strcmp(tv->name, what) == 0) 1347 break; 1348 1349 if (tv->name != NULL) { 1350 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1351 tv == &tval[T_am] || tv == &tval[T_xn]) { 1352 if (strcmp(how, "yes") == 0) 1353 el->el_term.t_val[tv - tval] = 1; 1354 else if (strcmp(how, "no") == 0) 1355 el->el_term.t_val[tv - tval] = 0; 1356 else { 1357 (void) fprintf(el->el_errfile, 1358 "settc: Bad value `%s'.\n", how); 1359 return (-1); 1360 } 1361 term_setflags(el); 1362 if (term_change_size(el, Val(T_li), Val(T_co)) == -1) 1363 return (-1); 1364 return (0); 1365 } else { 1366 long i; 1367 char *ep; 1368 1369 i = strtol(how, &ep, 10); 1370 if (*ep != '\0') { 1371 (void) fprintf(el->el_errfile, 1372 "settc: Bad value `%s'.\n", how); 1373 return (-1); 1374 } 1375 el->el_term.t_val[tv - tval] = (int) i; 1376 el->el_term.t_size.v = Val(T_co); 1377 el->el_term.t_size.h = Val(T_li); 1378 if (tv == &tval[T_co] || tv == &tval[T_li]) 1379 if (term_change_size(el, Val(T_li), Val(T_co)) 1380 == -1) 1381 return (-1); 1382 return (0); 1383 } 1384 } 1385 return (-1); 1386} 1387 1388 1389/* term_echotc(): 1390 * Print the termcap string out with variable substitution 1391 */ 1392protected int 1393/*ARGSUSED*/ 1394term_echotc(EditLine *el, int argc __unused, 1395 const char **argv) 1396{ 1397 char *cap, *scap, *ep; 1398 int arg_need, arg_cols, arg_rows; 1399 int verbose = 0, silent = 0; 1400 char *area; 1401 static const char fmts[] = "%s\n", fmtd[] = "%d\n"; 1402 const struct termcapstr *t; 1403 char buf[TC_BUFSIZE]; 1404 long i; 1405 1406 area = buf; 1407 1408 if (argv == NULL || argv[1] == NULL) 1409 return (-1); 1410 argv++; 1411 1412 if (argv[0][0] == '-') { 1413 switch (argv[0][1]) { 1414 case 'v': 1415 verbose = 1; 1416 break; 1417 case 's': 1418 silent = 1; 1419 break; 1420 default: 1421 /* stderror(ERR_NAME | ERR_TCUSAGE); */ 1422 break; 1423 } 1424 argv++; 1425 } 1426 if (!*argv || *argv[0] == '\0') 1427 return (0); 1428 if (strcmp(*argv, "tabs") == 0) { 1429 (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); 1430 return (0); 1431 } else if (strcmp(*argv, "meta") == 0) { 1432 (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); 1433 return (0); 1434 } else if (strcmp(*argv, "xn") == 0) { 1435 (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? 1436 "yes" : "no"); 1437 return (0); 1438 } else if (strcmp(*argv, "am") == 0) { 1439 (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? 1440 "yes" : "no"); 1441 return (0); 1442 } else if (strcmp(*argv, "baud") == 0) { 1443#ifdef notdef 1444 int i; 1445 1446 for (i = 0; baud_rate[i].b_name != NULL; i++) 1447 if (el->el_tty.t_speed == baud_rate[i].b_rate) { 1448 (void) fprintf(el->el_outfile, fmts, 1449 baud_rate[i].b_name); 1450 return (0); 1451 } 1452 (void) fprintf(el->el_outfile, fmtd, 0); 1453#else 1454 (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); 1455#endif 1456 return (0); 1457 } else if (strcmp(*argv, "rows") == 0 || strcmp(*argv, "lines") == 0) { 1458 (void) fprintf(el->el_outfile, fmtd, Val(T_li)); 1459 return (0); 1460 } else if (strcmp(*argv, "cols") == 0) { 1461 (void) fprintf(el->el_outfile, fmtd, Val(T_co)); 1462 return (0); 1463 } 1464 /* 1465 * Try to use our local definition first 1466 */ 1467 scap = NULL; 1468 for (t = tstr; t->name != NULL; t++) 1469 if (strcmp(t->name, *argv) == 0) { 1470 scap = el->el_term.t_str[t - tstr]; 1471 break; 1472 } 1473 if (t->name == NULL) { 1474 /* XXX: some systems' tgetstr needs non const */ 1475 scap = tgetstr(strchr(*argv, **argv), &area); 1476 } 1477 if (!scap || scap[0] == '\0') { 1478 if (!silent) 1479 (void) fprintf(el->el_errfile, 1480 "echotc: Termcap parameter `%s' not found.\n", 1481 *argv); 1482 return (-1); 1483 } 1484 /* 1485 * Count home many values we need for this capability. 1486 */ 1487 for (cap = scap, arg_need = 0; *cap; cap++) 1488 if (*cap == '%') 1489 switch (*++cap) { 1490 case 'd': 1491 case '2': 1492 case '3': 1493 case '.': 1494 case '+': 1495 arg_need++; 1496 break; 1497 case '%': 1498 case '>': 1499 case 'i': 1500 case 'r': 1501 case 'n': 1502 case 'B': 1503 case 'D': 1504 break; 1505 default: 1506 /* 1507 * hpux has lot's of them... 1508 */ 1509 if (verbose) 1510 (void) fprintf(el->el_errfile, 1511 "echotc: Warning: unknown termcap %% `%c'.\n", 1512 *cap); 1513 /* This is bad, but I won't complain */ 1514 break; 1515 } 1516 1517 switch (arg_need) { 1518 case 0: 1519 argv++; 1520 if (*argv && *argv[0]) { 1521 if (!silent) 1522 (void) fprintf(el->el_errfile, 1523 "echotc: Warning: Extra argument `%s'.\n", 1524 *argv); 1525 return (-1); 1526 } 1527 (void) tputs(scap, 1, term__putc); 1528 break; 1529 case 1: 1530 argv++; 1531 if (!*argv || *argv[0] == '\0') { 1532 if (!silent) 1533 (void) fprintf(el->el_errfile, 1534 "echotc: Warning: Missing argument.\n"); 1535 return (-1); 1536 } 1537 arg_cols = 0; 1538 i = strtol(*argv, &ep, 10); 1539 if (*ep != '\0' || i < 0) { 1540 if (!silent) 1541 (void) fprintf(el->el_errfile, 1542 "echotc: Bad value `%s' for rows.\n", 1543 *argv); 1544 return (-1); 1545 } 1546 arg_rows = (int) i; 1547 argv++; 1548 if (*argv && *argv[0]) { 1549 if (!silent) 1550 (void) fprintf(el->el_errfile, 1551 "echotc: Warning: Extra argument `%s'.\n", 1552 *argv); 1553 return (-1); 1554 } 1555 (void) tputs(tgoto(scap, arg_cols, arg_rows), 1, term__putc); 1556 break; 1557 default: 1558 /* This is wrong, but I will ignore it... */ 1559 if (verbose) 1560 (void) fprintf(el->el_errfile, 1561 "echotc: Warning: Too many required arguments (%d).\n", 1562 arg_need); 1563 /* FALLTHROUGH */ 1564 case 2: 1565 argv++; 1566 if (!*argv || *argv[0] == '\0') { 1567 if (!silent) 1568 (void) fprintf(el->el_errfile, 1569 "echotc: Warning: Missing argument.\n"); 1570 return (-1); 1571 } 1572 i = strtol(*argv, &ep, 10); 1573 if (*ep != '\0' || i < 0) { 1574 if (!silent) 1575 (void) fprintf(el->el_errfile, 1576 "echotc: Bad value `%s' for cols.\n", 1577 *argv); 1578 return (-1); 1579 } 1580 arg_cols = (int) i; 1581 argv++; 1582 if (!*argv || *argv[0] == '\0') { 1583 if (!silent) 1584 (void) fprintf(el->el_errfile, 1585 "echotc: Warning: Missing argument.\n"); 1586 return (-1); 1587 } 1588 i = strtol(*argv, &ep, 10); 1589 if (*ep != '\0' || i < 0) { 1590 if (!silent) 1591 (void) fprintf(el->el_errfile, 1592 "echotc: Bad value `%s' for rows.\n", 1593 *argv); 1594 return (-1); 1595 } 1596 arg_rows = (int) i; 1597 if (*ep != '\0') { 1598 if (!silent) 1599 (void) fprintf(el->el_errfile, 1600 "echotc: Bad value `%s'.\n", *argv); 1601 return (-1); 1602 } 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 (void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, 1612 term__putc); 1613 break; 1614 } 1615 return (0); 1616} 1617