terminal.c revision 1.1
1/* $NetBSD: terminal.c,v 1.1 2011/07/28 01:05:20 christos Exp $ */ 2 3/*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Christos Zoulas of Cornell University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include "config.h" 36#if !defined(lint) && !defined(SCCSID) 37#if 0 38static char sccsid[] = "@(#)term.c 8.2 (Berkeley) 4/30/95"; 39#else 40__RCSID("$NetBSD: terminal.c,v 1.1 2011/07/28 01:05:20 christos Exp $"); 41#endif 42#endif /* not lint && not SCCSID */ 43 44/* 45 * term.c: Editor/termcap-curses interface 46 * We have to declare a static variable here, since the 47 * termcap putchar routine does not take an argument! 48 */ 49#include <stdio.h> 50#include <signal.h> 51#include <string.h> 52#include <stdlib.h> 53#include <unistd.h> 54#include <limits.h> 55#ifdef HAVE_TERMCAP_H 56#include <termcap.h> 57#endif 58#ifdef HAVE_CURSES_H 59#include <curses.h> 60#elif HAVE_NCURSES_H 61#include <ncurses.h> 62#endif 63 64/* Solaris's term.h does horrid things. */ 65#if defined(HAVE_TERM_H) && !defined(__sun) 66#include <term.h> 67#endif 68#undef key_end 69#undef key_clear 70#undef key_print 71 72#include <sys/types.h> 73#include <sys/ioctl.h> 74 75#ifdef _REENTRANT 76#include <pthread.h> 77#endif 78 79#include "el.h" 80 81/* 82 * IMPORTANT NOTE: these routines are allowed to look at the current screen 83 * and the current position assuming that it is correct. If this is not 84 * true, then the update will be WRONG! This is (should be) a valid 85 * assumption... 86 */ 87 88#define TC_BUFSIZE 2048 89 90#define GoodStr(a) (el->el_terminal.t_str[a] != NULL && \ 91 el->el_terminal.t_str[a][0] != '\0') 92#define Str(a) el->el_terminal.t_str[a] 93#define Val(a) el->el_terminal.t_val[a] 94 95#ifdef notdef 96private const struct { 97 const char *b_name; 98 int b_rate; 99} baud_rate[] = { 100#ifdef B0 101 { "0", B0 }, 102#endif 103#ifdef B50 104 { "50", B50 }, 105#endif 106#ifdef B75 107 { "75", B75 }, 108#endif 109#ifdef B110 110 { "110", B110 }, 111#endif 112#ifdef B134 113 { "134", B134 }, 114#endif 115#ifdef B150 116 { "150", B150 }, 117#endif 118#ifdef B200 119 { "200", B200 }, 120#endif 121#ifdef B300 122 { "300", B300 }, 123#endif 124#ifdef B600 125 { "600", B600 }, 126#endif 127#ifdef B900 128 { "900", B900 }, 129#endif 130#ifdef B1200 131 { "1200", B1200 }, 132#endif 133#ifdef B1800 134 { "1800", B1800 }, 135#endif 136#ifdef B2400 137 { "2400", B2400 }, 138#endif 139#ifdef B3600 140 { "3600", B3600 }, 141#endif 142#ifdef B4800 143 { "4800", B4800 }, 144#endif 145#ifdef B7200 146 { "7200", B7200 }, 147#endif 148#ifdef B9600 149 { "9600", B9600 }, 150#endif 151#ifdef EXTA 152 { "19200", EXTA }, 153#endif 154#ifdef B19200 155 { "19200", B19200 }, 156#endif 157#ifdef EXTB 158 { "38400", EXTB }, 159#endif 160#ifdef B38400 161 { "38400", B38400 }, 162#endif 163 { NULL, 0 } 164}; 165#endif 166 167private const struct termcapstr { 168 const char *name; 169 const char *long_name; 170} tstr[] = { 171#define T_al 0 172 { "al", "add new blank line" }, 173#define T_bl 1 174 { "bl", "audible bell" }, 175#define T_cd 2 176 { "cd", "clear to bottom" }, 177#define T_ce 3 178 { "ce", "clear to end of line" }, 179#define T_ch 4 180 { "ch", "cursor to horiz pos" }, 181#define T_cl 5 182 { "cl", "clear screen" }, 183#define T_dc 6 184 { "dc", "delete a character" }, 185#define T_dl 7 186 { "dl", "delete a line" }, 187#define T_dm 8 188 { "dm", "start delete mode" }, 189#define T_ed 9 190 { "ed", "end delete mode" }, 191#define T_ei 10 192 { "ei", "end insert mode" }, 193#define T_fs 11 194 { "fs", "cursor from status line" }, 195#define T_ho 12 196 { "ho", "home cursor" }, 197#define T_ic 13 198 { "ic", "insert character" }, 199#define T_im 14 200 { "im", "start insert mode" }, 201#define T_ip 15 202 { "ip", "insert padding" }, 203#define T_kd 16 204 { "kd", "sends cursor down" }, 205#define T_kl 17 206 { "kl", "sends cursor left" }, 207#define T_kr 18 208 { "kr", "sends cursor right" }, 209#define T_ku 19 210 { "ku", "sends cursor up" }, 211#define T_md 20 212 { "md", "begin bold" }, 213#define T_me 21 214 { "me", "end attributes" }, 215#define T_nd 22 216 { "nd", "non destructive space" }, 217#define T_se 23 218 { "se", "end standout" }, 219#define T_so 24 220 { "so", "begin standout" }, 221#define T_ts 25 222 { "ts", "cursor to status line" }, 223#define T_up 26 224 { "up", "cursor up one" }, 225#define T_us 27 226 { "us", "begin underline" }, 227#define T_ue 28 228 { "ue", "end underline" }, 229#define T_vb 29 230 { "vb", "visible bell" }, 231#define T_DC 30 232 { "DC", "delete multiple chars" }, 233#define T_DO 31 234 { "DO", "cursor down multiple" }, 235#define T_IC 32 236 { "IC", "insert multiple chars" }, 237#define T_LE 33 238 { "LE", "cursor left multiple" }, 239#define T_RI 34 240 { "RI", "cursor right multiple" }, 241#define T_UP 35 242 { "UP", "cursor up multiple" }, 243#define T_kh 36 244 { "kh", "send cursor home" }, 245#define T_at7 37 246 { "@7", "send cursor end" }, 247#define T_str 38 248 { NULL, NULL } 249}; 250 251private const struct termcapval { 252 const char *name; 253 const char *long_name; 254} tval[] = { 255#define T_am 0 256 { "am", "has automatic margins" }, 257#define T_pt 1 258 { "pt", "has physical tabs" }, 259#define T_li 2 260 { "li", "Number of lines" }, 261#define T_co 3 262 { "co", "Number of columns" }, 263#define T_km 4 264 { "km", "Has meta key" }, 265#define T_xt 5 266 { "xt", "Tab chars destructive" }, 267#define T_xn 6 268 { "xn", "newline ignored at right margin" }, 269#define T_MT 7 270 { "MT", "Has meta key" }, /* XXX? */ 271#define T_val 8 272 { NULL, NULL, } 273}; 274/* do two or more of the attributes use me */ 275 276private void terminal_setflags(EditLine *); 277private int terminal_rebuffer_display(EditLine *); 278private void terminal_free_display(EditLine *); 279private int terminal_alloc_display(EditLine *); 280private void terminal_alloc(EditLine *, const struct termcapstr *, const char *); 281private void terminal_init_arrow(EditLine *); 282private void terminal_reset_arrow(EditLine *); 283private int terminal_putc(int); 284private void terminal_tputs(EditLine *, const char *, int); 285 286#ifdef _REENTRANT 287private pthread_mutex_t terminal_mutex = PTHREAD_MUTEX_INITIALIZER; 288#endif 289private FILE *terminal_outfile = NULL; 290 291 292/* terminal_setflags(): 293 * Set the terminal capability flags 294 */ 295private void 296terminal_setflags(EditLine *el) 297{ 298 EL_FLAGS = 0; 299 if (el->el_tty.t_tabs) 300 EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; 301 302 EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; 303 EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; 304 EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; 305 EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? 306 TERM_CAN_INSERT : 0; 307 EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; 308 EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; 309 EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; 310 311 if (GoodStr(T_me) && GoodStr(T_ue)) 312 EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? 313 TERM_CAN_ME : 0; 314 else 315 EL_FLAGS &= ~TERM_CAN_ME; 316 if (GoodStr(T_me) && GoodStr(T_se)) 317 EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? 318 TERM_CAN_ME : 0; 319 320 321#ifdef DEBUG_SCREEN 322 if (!EL_CAN_UP) { 323 (void) fprintf(el->el_errfile, 324 "WARNING: Your terminal cannot move up.\n"); 325 (void) fprintf(el->el_errfile, 326 "Editing may be odd for long lines.\n"); 327 } 328 if (!EL_CAN_CEOL) 329 (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); 330 if (!EL_CAN_DELETE) 331 (void) fprintf(el->el_errfile, "no delete char capability.\n"); 332 if (!EL_CAN_INSERT) 333 (void) fprintf(el->el_errfile, "no insert char capability.\n"); 334#endif /* DEBUG_SCREEN */ 335} 336 337/* terminal_init(): 338 * Initialize the terminal stuff 339 */ 340protected int 341terminal_init(EditLine *el) 342{ 343 344 el->el_terminal.t_buf = (char *) el_malloc(TC_BUFSIZE); 345 if (el->el_terminal.t_buf == NULL) 346 return (-1); 347 el->el_terminal.t_cap = (char *) el_malloc(TC_BUFSIZE); 348 if (el->el_terminal.t_cap == NULL) 349 return (-1); 350 el->el_terminal.t_fkey = (fkey_t *) el_malloc(A_K_NKEYS * sizeof(fkey_t)); 351 if (el->el_terminal.t_fkey == NULL) 352 return (-1); 353 el->el_terminal.t_loc = 0; 354 el->el_terminal.t_str = (char **) el_malloc(T_str * sizeof(char *)); 355 if (el->el_terminal.t_str == NULL) 356 return (-1); 357 (void) memset(el->el_terminal.t_str, 0, T_str * sizeof(char *)); 358 el->el_terminal.t_val = (int *) el_malloc(T_val * sizeof(int)); 359 if (el->el_terminal.t_val == NULL) 360 return (-1); 361 (void) memset(el->el_terminal.t_val, 0, T_val * sizeof(int)); 362 (void) terminal_set(el, NULL); 363 terminal_init_arrow(el); 364 return (0); 365} 366 367/* terminal_end(): 368 * Clean up the terminal stuff 369 */ 370protected void 371terminal_end(EditLine *el) 372{ 373 374 el_free((ptr_t) el->el_terminal.t_buf); 375 el->el_terminal.t_buf = NULL; 376 el_free((ptr_t) el->el_terminal.t_cap); 377 el->el_terminal.t_cap = NULL; 378 el->el_terminal.t_loc = 0; 379 el_free((ptr_t) el->el_terminal.t_str); 380 el->el_terminal.t_str = NULL; 381 el_free((ptr_t) el->el_terminal.t_val); 382 el->el_terminal.t_val = NULL; 383 el_free((ptr_t) el->el_terminal.t_fkey); 384 el->el_terminal.t_fkey = NULL; 385 terminal_free_display(el); 386} 387 388 389/* terminal_alloc(): 390 * Maintain a string pool for termcap strings 391 */ 392private void 393terminal_alloc(EditLine *el, const struct termcapstr *t, const char *cap) 394{ 395 char termbuf[TC_BUFSIZE]; 396 size_t tlen, clen; 397 char **tlist = el->el_terminal.t_str; 398 char **tmp, **str = &tlist[t - tstr]; 399 400 if (cap == NULL || *cap == '\0') { 401 *str = NULL; 402 return; 403 } else 404 clen = strlen(cap); 405 406 tlen = *str == NULL ? 0 : strlen(*str); 407 408 /* 409 * New string is shorter; no need to allocate space 410 */ 411 if (clen <= tlen) { 412 if (*str) 413 (void) strcpy(*str, cap); /* XXX strcpy is safe */ 414 return; 415 } 416 /* 417 * New string is longer; see if we have enough space to append 418 */ 419 if (el->el_terminal.t_loc + 3 < TC_BUFSIZE) { 420 /* XXX strcpy is safe */ 421 (void) strcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc], 422 cap); 423 el->el_terminal.t_loc += (int)clen + 1; /* one for \0 */ 424 return; 425 } 426 /* 427 * Compact our buffer; no need to check compaction, cause we know it 428 * fits... 429 */ 430 tlen = 0; 431 for (tmp = tlist; tmp < &tlist[T_str]; tmp++) 432 if (*tmp != NULL && *tmp != '\0' && *tmp != *str) { 433 char *ptr; 434 435 for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) 436 continue; 437 termbuf[tlen++] = '\0'; 438 } 439 memcpy(el->el_terminal.t_buf, termbuf, TC_BUFSIZE); 440 el->el_terminal.t_loc = (int)tlen; 441 if (el->el_terminal.t_loc + 3 >= TC_BUFSIZE) { 442 (void) fprintf(el->el_errfile, 443 "Out of termcap string space.\n"); 444 return; 445 } 446 /* XXX strcpy is safe */ 447 (void) strcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc], cap); 448 el->el_terminal.t_loc += (int)clen + 1; /* one for \0 */ 449 return; 450} 451 452 453/* terminal_rebuffer_display(): 454 * Rebuffer the display after the screen changed size 455 */ 456private int 457terminal_rebuffer_display(EditLine *el) 458{ 459 coord_t *c = &el->el_terminal.t_size; 460 461 terminal_free_display(el); 462 463 c->h = Val(T_co); 464 c->v = Val(T_li); 465 466 if (terminal_alloc_display(el) == -1) 467 return (-1); 468 return (0); 469} 470 471 472/* terminal_alloc_display(): 473 * Allocate a new display. 474 */ 475private int 476terminal_alloc_display(EditLine *el) 477{ 478 int i; 479 Char **b; 480 coord_t *c = &el->el_terminal.t_size; 481 482 b = el_malloc(sizeof(*b) * (c->v + 1)); 483 if (b == NULL) 484 return (-1); 485 for (i = 0; i < c->v; i++) { 486 b[i] = el_malloc(sizeof(**b) * (c->h + 1)); 487 if (b[i] == NULL) { 488 while (--i >= 0) 489 el_free((ptr_t) b[i]); 490 el_free((ptr_t) b); 491 return (-1); 492 } 493 } 494 b[c->v] = NULL; 495 el->el_display = b; 496 497 b = el_malloc(sizeof(*b) * (c->v + 1)); 498 if (b == NULL) 499 return (-1); 500 for (i = 0; i < c->v; i++) { 501 b[i] = el_malloc(sizeof(**b) * (c->h + 1)); 502 if (b[i] == NULL) { 503 while (--i >= 0) 504 el_free((ptr_t) b[i]); 505 el_free((ptr_t) b); 506 return (-1); 507 } 508 } 509 b[c->v] = NULL; 510 el->el_vdisplay = b; 511 return (0); 512} 513 514 515/* terminal_free_display(): 516 * Free the display buffers 517 */ 518private void 519terminal_free_display(EditLine *el) 520{ 521 Char **b; 522 Char **bufp; 523 524 b = el->el_display; 525 el->el_display = NULL; 526 if (b != NULL) { 527 for (bufp = b; *bufp != NULL; bufp++) 528 el_free((ptr_t) *bufp); 529 el_free((ptr_t) b); 530 } 531 b = el->el_vdisplay; 532 el->el_vdisplay = NULL; 533 if (b != NULL) { 534 for (bufp = b; *bufp != NULL; bufp++) 535 el_free((ptr_t) *bufp); 536 el_free((ptr_t) b); 537 } 538} 539 540 541/* terminal_move_to_line(): 542 * move to line <where> (first line == 0) 543 * as efficiently as possible 544 */ 545protected void 546terminal_move_to_line(EditLine *el, int where) 547{ 548 int del; 549 550 if (where == el->el_cursor.v) 551 return; 552 553 if (where > el->el_terminal.t_size.v) { 554#ifdef DEBUG_SCREEN 555 (void) fprintf(el->el_errfile, 556 "terminal_move_to_line: where is ridiculous: %d\r\n", where); 557#endif /* DEBUG_SCREEN */ 558 return; 559 } 560 if ((del = where - el->el_cursor.v) > 0) { 561 while (del > 0) { 562 if (EL_HAS_AUTO_MARGINS && 563 el->el_display[el->el_cursor.v][0] != '\0') { 564 size_t h = el->el_terminal.t_size.h - 1; 565#ifdef WIDECHAR 566 for (; h > 0 && 567 el->el_display[el->el_cursor.v][h] == 568 MB_FILL_CHAR; 569 h--) 570 continue; 571#endif 572 /* move without newline */ 573 terminal_move_to_char(el, (int)h); 574 terminal_overwrite(el, &el->el_display 575 [el->el_cursor.v][el->el_cursor.h], 576 (size_t)(el->el_terminal.t_size.h - 577 el->el_cursor.h)); 578 /* updates Cursor */ 579 del--; 580 } else { 581 if ((del > 1) && GoodStr(T_DO)) { 582 terminal_tputs(el, tgoto(Str(T_DO), del, 583 del), del); 584 del = 0; 585 } else { 586 for (; del > 0; del--) 587 terminal__putc(el, '\n'); 588 /* because the \n will become \r\n */ 589 el->el_cursor.h = 0; 590 } 591 } 592 } 593 } else { /* del < 0 */ 594 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 595 terminal_tputs(el, tgoto(Str(T_UP), -del, -del), -del); 596 else { 597 if (GoodStr(T_up)) 598 for (; del < 0; del++) 599 terminal_tputs(el, Str(T_up), 1); 600 } 601 } 602 el->el_cursor.v = where;/* now where is here */ 603} 604 605 606/* terminal_move_to_char(): 607 * Move to the character position specified 608 */ 609protected void 610terminal_move_to_char(EditLine *el, int where) 611{ 612 int del, i; 613 614mc_again: 615 if (where == el->el_cursor.h) 616 return; 617 618 if (where > el->el_terminal.t_size.h) { 619#ifdef DEBUG_SCREEN 620 (void) fprintf(el->el_errfile, 621 "terminal_move_to_char: where is riduculous: %d\r\n", where); 622#endif /* DEBUG_SCREEN */ 623 return; 624 } 625 if (!where) { /* if where is first column */ 626 terminal__putc(el, '\r'); /* do a CR */ 627 el->el_cursor.h = 0; 628 return; 629 } 630 del = where - el->el_cursor.h; 631 632 if ((del < -4 || del > 4) && GoodStr(T_ch)) 633 /* go there directly */ 634 terminal_tputs(el, tgoto(Str(T_ch), where, where), where); 635 else { 636 if (del > 0) { /* moving forward */ 637 if ((del > 4) && GoodStr(T_RI)) 638 terminal_tputs(el, tgoto(Str(T_RI), del, del), del); 639 else { 640 /* if I can do tabs, use them */ 641 if (EL_CAN_TAB) { 642 if ((el->el_cursor.h & 0370) != 643 (where & ~0x7) 644#ifdef WIDECHAR 645 && (el->el_display[ 646 el->el_cursor.v][where & 0370] != 647 MB_FILL_CHAR) 648#endif 649 ) { 650 /* if not within tab stop */ 651 for (i = 652 (el->el_cursor.h & 0370); 653 i < (where & ~0x7); 654 i += 8) 655 terminal__putc(el, '\t'); 656 /* then tab over */ 657 el->el_cursor.h = where & ~0x7; 658 } 659 } 660 /* 661 * it's usually cheaper to just write the 662 * chars, so we do. 663 */ 664 /* 665 * NOTE THAT terminal_overwrite() WILL CHANGE 666 * el->el_cursor.h!!! 667 */ 668 terminal_overwrite(el, &el->el_display[ 669 el->el_cursor.v][el->el_cursor.h], 670 (size_t)(where - el->el_cursor.h)); 671 672 } 673 } else { /* del < 0 := moving backward */ 674 if ((-del > 4) && GoodStr(T_LE)) 675 terminal_tputs(el, tgoto(Str(T_LE), -del, -del), 676 -del); 677 else { /* can't go directly there */ 678 /* 679 * if the "cost" is greater than the "cost" 680 * from col 0 681 */ 682 if (EL_CAN_TAB ? 683 ((unsigned int)-del > 684 (((unsigned int) where >> 3) + 685 (where & 07))) 686 : (-del > where)) { 687 terminal__putc(el, '\r'); /* do a CR */ 688 el->el_cursor.h = 0; 689 goto mc_again; /* and try again */ 690 } 691 for (i = 0; i < -del; i++) 692 terminal__putc(el, '\b'); 693 } 694 } 695 } 696 el->el_cursor.h = where; /* now where is here */ 697} 698 699 700/* terminal_overwrite(): 701 * Overstrike num characters 702 * Assumes MB_FILL_CHARs are present to keep the column count correct 703 */ 704protected void 705terminal_overwrite(EditLine *el, const Char *cp, size_t n) 706{ 707 if (n == 0) 708 return; 709 710 if (n > (size_t)el->el_terminal.t_size.h) { 711#ifdef DEBUG_SCREEN 712 (void) fprintf(el->el_errfile, 713 "terminal_overwrite: n is riduculous: %d\r\n", n); 714#endif /* DEBUG_SCREEN */ 715 return; 716 } 717 718 do { 719 /* terminal__putc() ignores any MB_FILL_CHARs */ 720 terminal__putc(el, *cp++); 721 el->el_cursor.h++; 722 } while (--n); 723 724 if (el->el_cursor.h >= el->el_terminal.t_size.h) { /* wrap? */ 725 if (EL_HAS_AUTO_MARGINS) { /* yes */ 726 el->el_cursor.h = 0; 727 el->el_cursor.v++; 728 if (EL_HAS_MAGIC_MARGINS) { 729 /* force the wrap to avoid the "magic" 730 * situation */ 731 Char c; 732 if ((c = el->el_display[el->el_cursor.v] 733 [el->el_cursor.h]) != '\0') { 734 terminal_overwrite(el, &c, 1); 735#ifdef WIDECHAR 736 while (el->el_display[el->el_cursor.v] 737 [el->el_cursor.h] == MB_FILL_CHAR) 738 el->el_cursor.h++; 739#endif 740 } else { 741 terminal__putc(el, ' '); 742 el->el_cursor.h = 1; 743 } 744 } 745 } else /* no wrap, but cursor stays on screen */ 746 el->el_cursor.h = el->el_terminal.t_size.h - 1; 747 } 748} 749 750 751/* terminal_deletechars(): 752 * Delete num characters 753 */ 754protected void 755terminal_deletechars(EditLine *el, int num) 756{ 757 if (num <= 0) 758 return; 759 760 if (!EL_CAN_DELETE) { 761#ifdef DEBUG_EDIT 762 (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); 763#endif /* DEBUG_EDIT */ 764 return; 765 } 766 if (num > el->el_terminal.t_size.h) { 767#ifdef DEBUG_SCREEN 768 (void) fprintf(el->el_errfile, 769 "terminal_deletechars: num is riduculous: %d\r\n", num); 770#endif /* DEBUG_SCREEN */ 771 return; 772 } 773 if (GoodStr(T_DC)) /* if I have multiple delete */ 774 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more 775 * expen. */ 776 terminal_tputs(el, tgoto(Str(T_DC), num, num), num); 777 return; 778 } 779 if (GoodStr(T_dm)) /* if I have delete mode */ 780 terminal_tputs(el, Str(T_dm), 1); 781 782 if (GoodStr(T_dc)) /* else do one at a time */ 783 while (num--) 784 terminal_tputs(el, Str(T_dc), 1); 785 786 if (GoodStr(T_ed)) /* if I have delete mode */ 787 terminal_tputs(el, Str(T_ed), 1); 788} 789 790 791/* terminal_insertwrite(): 792 * Puts terminal in insert character mode or inserts num 793 * characters in the line 794 * Assumes MB_FILL_CHARs are present to keep column count correct 795 */ 796protected void 797terminal_insertwrite(EditLine *el, Char *cp, int num) 798{ 799 if (num <= 0) 800 return; 801 if (!EL_CAN_INSERT) { 802#ifdef DEBUG_EDIT 803 (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); 804#endif /* DEBUG_EDIT */ 805 return; 806 } 807 if (num > el->el_terminal.t_size.h) { 808#ifdef DEBUG_SCREEN 809 (void) fprintf(el->el_errfile, 810 "StartInsert: num is riduculous: %d\r\n", num); 811#endif /* DEBUG_SCREEN */ 812 return; 813 } 814 if (GoodStr(T_IC)) /* if I have multiple insert */ 815 if ((num > 1) || !GoodStr(T_ic)) { 816 /* if ic would be more expensive */ 817 terminal_tputs(el, tgoto(Str(T_IC), num, num), num); 818 terminal_overwrite(el, cp, (size_t)num); 819 /* this updates el_cursor.h */ 820 return; 821 } 822 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 823 terminal_tputs(el, Str(T_im), 1); 824 825 el->el_cursor.h += num; 826 do 827 terminal__putc(el, *cp++); 828 while (--num); 829 830 if (GoodStr(T_ip)) /* have to make num chars insert */ 831 terminal_tputs(el, Str(T_ip), 1); 832 833 terminal_tputs(el, Str(T_ei), 1); 834 return; 835 } 836 do { 837 if (GoodStr(T_ic)) /* have to make num chars insert */ 838 terminal_tputs(el, Str(T_ic), 1); 839 840 terminal__putc(el, *cp++); 841 842 el->el_cursor.h++; 843 844 if (GoodStr(T_ip)) /* have to make num chars insert */ 845 terminal_tputs(el, Str(T_ip), 1); 846 /* pad the inserted char */ 847 848 } while (--num); 849} 850 851 852/* terminal_clear_EOL(): 853 * clear to end of line. There are num characters to clear 854 */ 855protected void 856terminal_clear_EOL(EditLine *el, int num) 857{ 858 int i; 859 860 if (EL_CAN_CEOL && GoodStr(T_ce)) 861 terminal_tputs(el, Str(T_ce), 1); 862 else { 863 for (i = 0; i < num; i++) 864 terminal__putc(el, ' '); 865 el->el_cursor.h += num; /* have written num spaces */ 866 } 867} 868 869 870/* terminal_clear_screen(): 871 * Clear the screen 872 */ 873protected void 874terminal_clear_screen(EditLine *el) 875{ /* clear the whole screen and home */ 876 877 if (GoodStr(T_cl)) 878 /* send the clear screen code */ 879 terminal_tputs(el, Str(T_cl), Val(T_li)); 880 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 881 terminal_tputs(el, Str(T_ho), Val(T_li)); /* home */ 882 /* clear to bottom of screen */ 883 terminal_tputs(el, Str(T_cd), Val(T_li)); 884 } else { 885 terminal__putc(el, '\r'); 886 terminal__putc(el, '\n'); 887 } 888} 889 890 891/* terminal_beep(): 892 * Beep the way the terminal wants us 893 */ 894protected void 895terminal_beep(EditLine *el) 896{ 897 if (GoodStr(T_bl)) 898 /* what termcap says we should use */ 899 terminal_tputs(el, Str(T_bl), 1); 900 else 901 terminal__putc(el, '\007'); /* an ASCII bell; ^G */ 902} 903 904 905#ifdef notdef 906/* terminal_clear_to_bottom(): 907 * Clear to the bottom of the screen 908 */ 909protected void 910terminal_clear_to_bottom(EditLine *el) 911{ 912 if (GoodStr(T_cd)) 913 terminal_tputs(el, Str(T_cd), Val(T_li)); 914 else if (GoodStr(T_ce)) 915 terminal_tputs(el, Str(T_ce), Val(T_li)); 916} 917#endif 918 919protected void 920terminal_get(EditLine *el, const char **term) 921{ 922 *term = el->el_terminal.t_name; 923} 924 925 926/* terminal_set(): 927 * Read in the terminal capabilities from the requested terminal 928 */ 929protected int 930terminal_set(EditLine *el, const char *term) 931{ 932 int i; 933 char buf[TC_BUFSIZE]; 934 char *area; 935 const struct termcapstr *t; 936 sigset_t oset, nset; 937 int lins, cols; 938 939 (void) sigemptyset(&nset); 940 (void) sigaddset(&nset, SIGWINCH); 941 (void) sigprocmask(SIG_BLOCK, &nset, &oset); 942 943 area = buf; 944 945 946 if (term == NULL) 947 term = getenv("TERM"); 948 949 if (!term || !term[0]) 950 term = "dumb"; 951 952 if (strcmp(term, "emacs") == 0) 953 el->el_flags |= EDIT_DISABLED; 954 955 memset(el->el_terminal.t_cap, 0, TC_BUFSIZE); 956 957 i = tgetent(el->el_terminal.t_cap, term); 958 959 if (i <= 0) { 960 if (i == -1) 961 (void) fprintf(el->el_errfile, 962 "Cannot read termcap database;\n"); 963 else if (i == 0) 964 (void) fprintf(el->el_errfile, 965 "No entry for terminal type \"%s\";\n", term); 966 (void) fprintf(el->el_errfile, 967 "using dumb terminal settings.\n"); 968 Val(T_co) = 80; /* do a dumb terminal */ 969 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 970 Val(T_xt) = Val(T_MT); 971 for (t = tstr; t->name != NULL; t++) 972 terminal_alloc(el, t, NULL); 973 } else { 974 /* auto/magic margins */ 975 Val(T_am) = tgetflag("am"); 976 Val(T_xn) = tgetflag("xn"); 977 /* Can we tab */ 978 Val(T_pt) = tgetflag("pt"); 979 Val(T_xt) = tgetflag("xt"); 980 /* do we have a meta? */ 981 Val(T_km) = tgetflag("km"); 982 Val(T_MT) = tgetflag("MT"); 983 /* Get the size */ 984 Val(T_co) = tgetnum("co"); 985 Val(T_li) = tgetnum("li"); 986 for (t = tstr; t->name != NULL; t++) { 987 /* XXX: some systems' tgetstr needs non const */ 988 terminal_alloc(el, t, tgetstr(strchr(t->name, *t->name), 989 &area)); 990 } 991 } 992 993 if (Val(T_co) < 2) 994 Val(T_co) = 80; /* just in case */ 995 if (Val(T_li) < 1) 996 Val(T_li) = 24; 997 998 el->el_terminal.t_size.v = Val(T_co); 999 el->el_terminal.t_size.h = Val(T_li); 1000 1001 terminal_setflags(el); 1002 1003 /* get the correct window size */ 1004 (void) terminal_get_size(el, &lins, &cols); 1005 if (terminal_change_size(el, lins, cols) == -1) 1006 return (-1); 1007 (void) sigprocmask(SIG_SETMASK, &oset, NULL); 1008 terminal_bind_arrow(el); 1009 el->el_terminal.t_name = term; 1010 return (i <= 0 ? -1 : 0); 1011} 1012 1013 1014/* terminal_get_size(): 1015 * Return the new window size in lines and cols, and 1016 * true if the size was changed. 1017 */ 1018protected int 1019terminal_get_size(EditLine *el, int *lins, int *cols) 1020{ 1021 1022 *cols = Val(T_co); 1023 *lins = Val(T_li); 1024 1025#ifdef TIOCGWINSZ 1026 { 1027 struct winsize ws; 1028 if (ioctl(el->el_infd, TIOCGWINSZ, (ioctl_t) & ws) != -1) { 1029 if (ws.ws_col) 1030 *cols = ws.ws_col; 1031 if (ws.ws_row) 1032 *lins = ws.ws_row; 1033 } 1034 } 1035#endif 1036#ifdef TIOCGSIZE 1037 { 1038 struct ttysize ts; 1039 if (ioctl(el->el_infd, TIOCGSIZE, (ioctl_t) & ts) != -1) { 1040 if (ts.ts_cols) 1041 *cols = ts.ts_cols; 1042 if (ts.ts_lines) 1043 *lins = ts.ts_lines; 1044 } 1045 } 1046#endif 1047 return (Val(T_co) != *cols || Val(T_li) != *lins); 1048} 1049 1050 1051/* terminal_change_size(): 1052 * Change the size of the terminal 1053 */ 1054protected int 1055terminal_change_size(EditLine *el, int lins, int cols) 1056{ 1057 /* 1058 * Just in case 1059 */ 1060 Val(T_co) = (cols < 2) ? 80 : cols; 1061 Val(T_li) = (lins < 1) ? 24 : lins; 1062 1063 /* re-make display buffers */ 1064 if (terminal_rebuffer_display(el) == -1) 1065 return (-1); 1066 re_clear_display(el); 1067 return (0); 1068} 1069 1070 1071/* terminal_init_arrow(): 1072 * Initialize the arrow key bindings from termcap 1073 */ 1074private void 1075terminal_init_arrow(EditLine *el) 1076{ 1077 fkey_t *arrow = el->el_terminal.t_fkey; 1078 1079 arrow[A_K_DN].name = STR("down"); 1080 arrow[A_K_DN].key = T_kd; 1081 arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; 1082 arrow[A_K_DN].type = XK_CMD; 1083 1084 arrow[A_K_UP].name = STR("up"); 1085 arrow[A_K_UP].key = T_ku; 1086 arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; 1087 arrow[A_K_UP].type = XK_CMD; 1088 1089 arrow[A_K_LT].name = STR("left"); 1090 arrow[A_K_LT].key = T_kl; 1091 arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; 1092 arrow[A_K_LT].type = XK_CMD; 1093 1094 arrow[A_K_RT].name = STR("right"); 1095 arrow[A_K_RT].key = T_kr; 1096 arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; 1097 arrow[A_K_RT].type = XK_CMD; 1098 1099 arrow[A_K_HO].name = STR("home"); 1100 arrow[A_K_HO].key = T_kh; 1101 arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; 1102 arrow[A_K_HO].type = XK_CMD; 1103 1104 arrow[A_K_EN].name = STR("end"); 1105 arrow[A_K_EN].key = T_at7; 1106 arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; 1107 arrow[A_K_EN].type = XK_CMD; 1108} 1109 1110 1111/* terminal_reset_arrow(): 1112 * Reset arrow key bindings 1113 */ 1114private void 1115terminal_reset_arrow(EditLine *el) 1116{ 1117 fkey_t *arrow = el->el_terminal.t_fkey; 1118 static const Char strA[] = {033, '[', 'A', '\0'}; 1119 static const Char strB[] = {033, '[', 'B', '\0'}; 1120 static const Char strC[] = {033, '[', 'C', '\0'}; 1121 static const Char strD[] = {033, '[', 'D', '\0'}; 1122 static const Char strH[] = {033, '[', 'H', '\0'}; 1123 static const Char strF[] = {033, '[', 'F', '\0'}; 1124 static const Char stOA[] = {033, 'O', 'A', '\0'}; 1125 static const Char stOB[] = {033, 'O', 'B', '\0'}; 1126 static const Char stOC[] = {033, 'O', 'C', '\0'}; 1127 static const Char stOD[] = {033, 'O', 'D', '\0'}; 1128 static const Char stOH[] = {033, 'O', 'H', '\0'}; 1129 static const Char stOF[] = {033, 'O', 'F', '\0'}; 1130 1131 key_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1132 key_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1133 key_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1134 key_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1135 key_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1136 key_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1137 key_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1138 key_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1139 key_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1140 key_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1141 key_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1142 key_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1143 1144 if (el->el_map.type == MAP_VI) { 1145 key_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1146 key_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1147 key_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1148 key_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1149 key_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1150 key_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1151 key_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); 1152 key_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); 1153 key_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); 1154 key_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); 1155 key_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); 1156 key_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); 1157 } 1158} 1159 1160 1161/* terminal_set_arrow(): 1162 * Set an arrow key binding 1163 */ 1164protected int 1165terminal_set_arrow(EditLine *el, const Char *name, key_value_t *fun, int type) 1166{ 1167 fkey_t *arrow = el->el_terminal.t_fkey; 1168 int i; 1169 1170 for (i = 0; i < A_K_NKEYS; i++) 1171 if (Strcmp(name, arrow[i].name) == 0) { 1172 arrow[i].fun = *fun; 1173 arrow[i].type = type; 1174 return (0); 1175 } 1176 return (-1); 1177} 1178 1179 1180/* terminal_clear_arrow(): 1181 * Clear an arrow key binding 1182 */ 1183protected int 1184terminal_clear_arrow(EditLine *el, const Char *name) 1185{ 1186 fkey_t *arrow = el->el_terminal.t_fkey; 1187 int i; 1188 1189 for (i = 0; i < A_K_NKEYS; i++) 1190 if (Strcmp(name, arrow[i].name) == 0) { 1191 arrow[i].type = XK_NOD; 1192 return (0); 1193 } 1194 return (-1); 1195} 1196 1197 1198/* terminal_print_arrow(): 1199 * Print the arrow key bindings 1200 */ 1201protected void 1202terminal_print_arrow(EditLine *el, const Char *name) 1203{ 1204 int i; 1205 fkey_t *arrow = el->el_terminal.t_fkey; 1206 1207 for (i = 0; i < A_K_NKEYS; i++) 1208 if (*name == '\0' || Strcmp(name, arrow[i].name) == 0) 1209 if (arrow[i].type != XK_NOD) 1210 key_kprint(el, arrow[i].name, &arrow[i].fun, 1211 arrow[i].type); 1212} 1213 1214 1215/* terminal_bind_arrow(): 1216 * Bind the arrow keys 1217 */ 1218protected void 1219terminal_bind_arrow(EditLine *el) 1220{ 1221 el_action_t *map; 1222 const el_action_t *dmap; 1223 int i, j; 1224 char *p; 1225 fkey_t *arrow = el->el_terminal.t_fkey; 1226 1227 /* Check if the components needed are initialized */ 1228 if (el->el_terminal.t_buf == NULL || el->el_map.key == NULL) 1229 return; 1230 1231 map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; 1232 dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; 1233 1234 terminal_reset_arrow(el); 1235 1236 for (i = 0; i < A_K_NKEYS; i++) { 1237 Char wt_str[VISUAL_WIDTH_MAX]; 1238 Char *px; 1239 size_t n; 1240 1241 p = el->el_terminal.t_str[arrow[i].key]; 1242 if (!p || !*p) 1243 continue; 1244 for (n = 0; n < VISUAL_WIDTH_MAX && p[n]; ++n) 1245 wt_str[n] = p[n]; 1246 while (n < VISUAL_WIDTH_MAX) 1247 wt_str[n++] = '\0'; 1248 px = wt_str; 1249 j = (unsigned char) *p; 1250 /* 1251 * Assign the arrow keys only if: 1252 * 1253 * 1. They are multi-character arrow keys and the user 1254 * has not re-assigned the leading character, or 1255 * has re-assigned the leading character to be 1256 * ED_SEQUENCE_LEAD_IN 1257 * 2. They are single arrow keys pointing to an 1258 * unassigned key. 1259 */ 1260 if (arrow[i].type == XK_NOD) 1261 key_clear(el, map, px); 1262 else { 1263 if (p[1] && (dmap[j] == map[j] || 1264 map[j] == ED_SEQUENCE_LEAD_IN)) { 1265 key_add(el, px, &arrow[i].fun, 1266 arrow[i].type); 1267 map[j] = ED_SEQUENCE_LEAD_IN; 1268 } else if (map[j] == ED_UNASSIGNED) { 1269 key_clear(el, map, px); 1270 if (arrow[i].type == XK_CMD) 1271 map[j] = arrow[i].fun.cmd; 1272 else 1273 key_add(el, px, &arrow[i].fun, 1274 arrow[i].type); 1275 } 1276 } 1277 } 1278} 1279 1280/* terminal_putc(): 1281 * Add a character 1282 */ 1283private int 1284terminal_putc(int c) 1285{ 1286 if (terminal_outfile == NULL) 1287 return -1; 1288 return fputc(c, terminal_outfile); 1289} 1290 1291private void 1292terminal_tputs(EditLine *el, const char *cap, int affcnt) 1293{ 1294#ifdef _REENTRANT 1295 pthread_mutex_lock(&terminal_mutex); 1296#endif 1297 terminal_outfile = el->el_outfile; 1298 (void)tputs(cap, affcnt, terminal_putc); 1299#ifdef _REENTRANT 1300 pthread_mutex_unlock(&terminal_mutex); 1301#endif 1302} 1303 1304/* terminal__putc(): 1305 * Add a character 1306 */ 1307protected int 1308terminal__putc(EditLine *el, Int c) 1309{ 1310 char buf[MB_LEN_MAX +1]; 1311 ssize_t i; 1312 if (c == MB_FILL_CHAR) 1313 return 0; 1314 i = ct_encode_char(buf, MB_LEN_MAX, c); 1315 if (i <= 0) 1316 return (int)i; 1317 buf[i] = '\0'; 1318 return fputs(buf, el->el_outfile); 1319} 1320 1321/* terminal__flush(): 1322 * Flush output 1323 */ 1324protected void 1325terminal__flush(EditLine *el) 1326{ 1327 1328 (void) fflush(el->el_outfile); 1329} 1330 1331/* terminal_writec(): 1332 * Write the given character out, in a human readable form 1333 */ 1334protected void 1335terminal_writec(EditLine *el, Int c) 1336{ 1337 Char visbuf[VISUAL_WIDTH_MAX +1]; 1338 ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c); 1339 visbuf[vcnt] = '\0'; 1340 terminal_overwrite(el, visbuf, (size_t)vcnt); 1341 terminal__flush(el); 1342} 1343 1344 1345/* terminal_telltc(): 1346 * Print the current termcap characteristics 1347 */ 1348protected int 1349/*ARGSUSED*/ 1350terminal_telltc(EditLine *el, int argc __attribute__((__unused__)), 1351 const Char **argv __attribute__((__unused__))) 1352{ 1353 const struct termcapstr *t; 1354 char **ts; 1355 1356 (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); 1357 (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); 1358 (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", 1359 Val(T_co), Val(T_li)); 1360 (void) fprintf(el->el_outfile, 1361 "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); 1362 (void) fprintf(el->el_outfile, 1363 "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); 1364 (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 1365 EL_HAS_AUTO_MARGINS ? "has" : "does not have"); 1366 if (EL_HAS_AUTO_MARGINS) 1367 (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 1368 EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); 1369 1370 for (t = tstr, ts = el->el_terminal.t_str; t->name != NULL; t++, ts++) { 1371 const char *ub; 1372 if (*ts && **ts) { 1373 ub = ct_encode_string(ct_visual_string( 1374 ct_decode_string(*ts, &el->el_scratch)), 1375 &el->el_scratch); 1376 } else { 1377 ub = "(empty)"; 1378 } 1379 (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", 1380 t->long_name, t->name, ub); 1381 } 1382 (void) fputc('\n', el->el_outfile); 1383 return (0); 1384} 1385 1386 1387/* terminal_settc(): 1388 * Change the current terminal characteristics 1389 */ 1390protected int 1391/*ARGSUSED*/ 1392terminal_settc(EditLine *el, int argc __attribute__((__unused__)), 1393 const Char **argv) 1394{ 1395 const struct termcapstr *ts; 1396 const struct termcapval *tv; 1397 char what[8], how[8]; 1398 1399 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1400 return -1; 1401 1402 strncpy(what, ct_encode_string(argv[1], &el->el_scratch), sizeof(what)); 1403 what[sizeof(what) - 1] = '\0'; 1404 strncpy(how, ct_encode_string(argv[2], &el->el_scratch), sizeof(how)); 1405 how[sizeof(how) - 1] = '\0'; 1406 1407 /* 1408 * Do the strings first 1409 */ 1410 for (ts = tstr; ts->name != NULL; ts++) 1411 if (strcmp(ts->name, what) == 0) 1412 break; 1413 1414 if (ts->name != NULL) { 1415 terminal_alloc(el, ts, how); 1416 terminal_setflags(el); 1417 return 0; 1418 } 1419 /* 1420 * Do the numeric ones second 1421 */ 1422 for (tv = tval; tv->name != NULL; tv++) 1423 if (strcmp(tv->name, what) == 0) 1424 break; 1425 1426 if (tv->name != NULL) 1427 return -1; 1428 1429 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1430 tv == &tval[T_am] || tv == &tval[T_xn]) { 1431 if (strcmp(how, "yes") == 0) 1432 el->el_terminal.t_val[tv - tval] = 1; 1433 else if (strcmp(how, "no") == 0) 1434 el->el_terminal.t_val[tv - tval] = 0; 1435 else { 1436 (void) fprintf(el->el_errfile, 1437 "" FSTR ": Bad value `%s'.\n", argv[0], how); 1438 return -1; 1439 } 1440 terminal_setflags(el); 1441 if (terminal_change_size(el, Val(T_li), Val(T_co)) == -1) 1442 return -1; 1443 return 0; 1444 } else { 1445 long i; 1446 char *ep; 1447 1448 i = strtol(how, &ep, 10); 1449 if (*ep != '\0') { 1450 (void) fprintf(el->el_errfile, 1451 "" FSTR ": Bad value `%s'.\n", argv[0], how); 1452 return -1; 1453 } 1454 el->el_terminal.t_val[tv - tval] = (int) i; 1455 el->el_terminal.t_size.v = Val(T_co); 1456 el->el_terminal.t_size.h = Val(T_li); 1457 if (tv == &tval[T_co] || tv == &tval[T_li]) 1458 if (terminal_change_size(el, Val(T_li), Val(T_co)) 1459 == -1) 1460 return -1; 1461 return 0; 1462 } 1463} 1464 1465 1466/* terminal_gettc(): 1467 * Get the current terminal characteristics 1468 */ 1469protected int 1470/*ARGSUSED*/ 1471terminal_gettc(EditLine *el, int argc __attribute__((__unused__)), char **argv) 1472{ 1473 const struct termcapstr *ts; 1474 const struct termcapval *tv; 1475 char *what; 1476 void *how; 1477 1478 if (argv == NULL || argv[1] == NULL || argv[2] == NULL) 1479 return (-1); 1480 1481 what = argv[1]; 1482 how = argv[2]; 1483 1484 /* 1485 * Do the strings first 1486 */ 1487 for (ts = tstr; ts->name != NULL; ts++) 1488 if (strcmp(ts->name, what) == 0) 1489 break; 1490 1491 if (ts->name != NULL) { 1492 *(char **)how = el->el_terminal.t_str[ts - tstr]; 1493 return 0; 1494 } 1495 /* 1496 * Do the numeric ones second 1497 */ 1498 for (tv = tval; tv->name != NULL; tv++) 1499 if (strcmp(tv->name, what) == 0) 1500 break; 1501 1502 if (tv->name == NULL) 1503 return -1; 1504 1505 if (tv == &tval[T_pt] || tv == &tval[T_km] || 1506 tv == &tval[T_am] || tv == &tval[T_xn]) { 1507 static char yes[] = "yes"; 1508 static char no[] = "no"; 1509 if (el->el_terminal.t_val[tv - tval]) 1510 *(char **)how = yes; 1511 else 1512 *(char **)how = no; 1513 return 0; 1514 } else { 1515 *(int *)how = el->el_terminal.t_val[tv - tval]; 1516 return 0; 1517 } 1518} 1519 1520/* terminal_echotc(): 1521 * Print the termcap string out with variable substitution 1522 */ 1523protected int 1524/*ARGSUSED*/ 1525terminal_echotc(EditLine *el, int argc __attribute__((__unused__)), 1526 const Char **argv) 1527{ 1528 char *cap, *scap; 1529 Char *ep; 1530 int arg_need, arg_cols, arg_rows; 1531 int verbose = 0, silent = 0; 1532 char *area; 1533 static const char fmts[] = "%s\n", fmtd[] = "%d\n"; 1534 const struct termcapstr *t; 1535 char buf[TC_BUFSIZE]; 1536 long i; 1537 1538 area = buf; 1539 1540 if (argv == NULL || argv[1] == NULL) 1541 return (-1); 1542 argv++; 1543 1544 if (argv[0][0] == '-') { 1545 switch (argv[0][1]) { 1546 case 'v': 1547 verbose = 1; 1548 break; 1549 case 's': 1550 silent = 1; 1551 break; 1552 default: 1553 /* stderror(ERR_NAME | ERR_TCUSAGE); */ 1554 break; 1555 } 1556 argv++; 1557 } 1558 if (!*argv || *argv[0] == '\0') 1559 return (0); 1560 if (Strcmp(*argv, STR("tabs")) == 0) { 1561 (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); 1562 return (0); 1563 } else if (Strcmp(*argv, STR("meta")) == 0) { 1564 (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); 1565 return (0); 1566 } else if (Strcmp(*argv, STR("xn")) == 0) { 1567 (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? 1568 "yes" : "no"); 1569 return (0); 1570 } else if (Strcmp(*argv, STR("am")) == 0) { 1571 (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? 1572 "yes" : "no"); 1573 return (0); 1574 } else if (Strcmp(*argv, STR("baud")) == 0) { 1575#ifdef notdef 1576 int i; 1577 1578 for (i = 0; baud_rate[i].b_name != NULL; i++) 1579 if (el->el_tty.t_speed == baud_rate[i].b_rate) { 1580 (void) fprintf(el->el_outfile, fmts, 1581 baud_rate[i].b_name); 1582 return (0); 1583 } 1584 (void) fprintf(el->el_outfile, fmtd, 0); 1585#else 1586 (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); 1587#endif 1588 return (0); 1589 } else if (Strcmp(*argv, STR("rows")) == 0 || 1590 Strcmp(*argv, STR("lines")) == 0) { 1591 (void) fprintf(el->el_outfile, fmtd, Val(T_li)); 1592 return (0); 1593 } else if (Strcmp(*argv, STR("cols")) == 0) { 1594 (void) fprintf(el->el_outfile, fmtd, Val(T_co)); 1595 return (0); 1596 } 1597 /* 1598 * Try to use our local definition first 1599 */ 1600 scap = NULL; 1601 for (t = tstr; t->name != NULL; t++) 1602 if (strcmp(t->name, 1603 ct_encode_string(*argv, &el->el_scratch)) == 0) { 1604 scap = el->el_terminal.t_str[t - tstr]; 1605 break; 1606 } 1607 if (t->name == NULL) { 1608 /* XXX: some systems' tgetstr needs non const */ 1609 scap = tgetstr(ct_encode_string(*argv, &el->el_scratch), &area); 1610 } 1611 if (!scap || scap[0] == '\0') { 1612 if (!silent) 1613 (void) fprintf(el->el_errfile, 1614 "echotc: Termcap parameter `" FSTR "' not found.\n", 1615 *argv); 1616 return (-1); 1617 } 1618 /* 1619 * Count home many values we need for this capability. 1620 */ 1621 for (cap = scap, arg_need = 0; *cap; cap++) 1622 if (*cap == '%') 1623 switch (*++cap) { 1624 case 'd': 1625 case '2': 1626 case '3': 1627 case '.': 1628 case '+': 1629 arg_need++; 1630 break; 1631 case '%': 1632 case '>': 1633 case 'i': 1634 case 'r': 1635 case 'n': 1636 case 'B': 1637 case 'D': 1638 break; 1639 default: 1640 /* 1641 * hpux has lot's of them... 1642 */ 1643 if (verbose) 1644 (void) fprintf(el->el_errfile, 1645 "echotc: Warning: unknown termcap %% `%c'.\n", 1646 *cap); 1647 /* This is bad, but I won't complain */ 1648 break; 1649 } 1650 1651 switch (arg_need) { 1652 case 0: 1653 argv++; 1654 if (*argv && *argv[0]) { 1655 if (!silent) 1656 (void) fprintf(el->el_errfile, 1657 "echotc: Warning: Extra argument `" FSTR "'.\n", 1658 *argv); 1659 return (-1); 1660 } 1661 terminal_tputs(el, scap, 1); 1662 break; 1663 case 1: 1664 argv++; 1665 if (!*argv || *argv[0] == '\0') { 1666 if (!silent) 1667 (void) fprintf(el->el_errfile, 1668 "echotc: Warning: Missing argument.\n"); 1669 return (-1); 1670 } 1671 arg_cols = 0; 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 `" FSTR "' for rows.\n", 1677 *argv); 1678 return (-1); 1679 } 1680 arg_rows = (int) i; 1681 argv++; 1682 if (*argv && *argv[0]) { 1683 if (!silent) 1684 (void) fprintf(el->el_errfile, 1685 "echotc: Warning: Extra argument `" FSTR "'.\n", 1686 *argv); 1687 return (-1); 1688 } 1689 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), 1); 1690 break; 1691 default: 1692 /* This is wrong, but I will ignore it... */ 1693 if (verbose) 1694 (void) fprintf(el->el_errfile, 1695 "echotc: Warning: Too many required arguments (%d).\n", 1696 arg_need); 1697 /* FALLTHROUGH */ 1698 case 2: 1699 argv++; 1700 if (!*argv || *argv[0] == '\0') { 1701 if (!silent) 1702 (void) fprintf(el->el_errfile, 1703 "echotc: Warning: Missing argument.\n"); 1704 return (-1); 1705 } 1706 i = Strtol(*argv, &ep, 10); 1707 if (*ep != '\0' || i < 0) { 1708 if (!silent) 1709 (void) fprintf(el->el_errfile, 1710 "echotc: Bad value `" FSTR "' for cols.\n", 1711 *argv); 1712 return (-1); 1713 } 1714 arg_cols = (int) i; 1715 argv++; 1716 if (!*argv || *argv[0] == '\0') { 1717 if (!silent) 1718 (void) fprintf(el->el_errfile, 1719 "echotc: Warning: Missing argument.\n"); 1720 return (-1); 1721 } 1722 i = Strtol(*argv, &ep, 10); 1723 if (*ep != '\0' || i < 0) { 1724 if (!silent) 1725 (void) fprintf(el->el_errfile, 1726 "echotc: Bad value `" FSTR "' for rows.\n", 1727 *argv); 1728 return (-1); 1729 } 1730 arg_rows = (int) i; 1731 if (*ep != '\0') { 1732 if (!silent) 1733 (void) fprintf(el->el_errfile, 1734 "echotc: Bad value `" FSTR "'.\n", *argv); 1735 return (-1); 1736 } 1737 argv++; 1738 if (*argv && *argv[0]) { 1739 if (!silent) 1740 (void) fprintf(el->el_errfile, 1741 "echotc: Warning: Extra argument `" FSTR "'.\n", 1742 *argv); 1743 return (-1); 1744 } 1745 terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows); 1746 break; 1747 } 1748 return (0); 1749} 1750