1 /* $Header: /src/pub/tcsh/ed.screen.c,v 3.48 2000/11/11 23:03:34 christos Exp $ */ 2 /* 3 * ed.screen.c: Editor/termcap-curses interface 4 */ 5 /*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 #include "sh.h" 38 39 RCSID("$Id: ed.screen.c,v 3.48 2000/11/11 23:03:34 christos Exp $") 40 41 #include "ed.h" 42 #include "tc.h" 43 #include "ed.defns.h" 44 45 #ifndef POSIX 46 /* 47 * We don't prototype these, cause some systems have them wrong! 48 */ 49 extern int tgetent __P(()); 50 extern char *tgetstr __P(()); 51 extern int tgetflag __P(()); 52 extern int tgetnum __P(()); 53 extern char *tgoto __P(()); 54 # define PUTPURE putpure 55 # define PUTRAW putraw 56 #else 57 extern int tgetent __P((char *, char *)); 58 extern char *tgetstr __P((char *, char **)); 59 extern int tgetflag __P((char *)); 60 extern int tgetnum __P((char *)); 61 extern char *tgoto __P((char *, int, int)); 62 extern void tputs __P((char *, int, void (*)(int))); 63 # define PUTPURE ((void (*)__P((int))) putpure) 64 # define PUTRAW ((void (*)__P((int))) putraw) 65 #endif 66 67 68 /* #define DEBUG_LITERAL */ 69 70 /* 71 * IMPORTANT NOTE: these routines are allowed to look at the current screen 72 * and the current possition assuming that it is correct. If this is not 73 * true, then the update will be WRONG! This is (should be) a valid 74 * assumption... 75 */ 76 77 #define TC_BUFSIZE 2048 78 79 #define GoodStr(a) (tstr[a].str != NULL && tstr[a].str[0] != '\0') 80 #define Str(a) tstr[a].str 81 #define Val(a) tval[a].val 82 83 static struct { 84 char *b_name; 85 int b_rate; 86 } baud_rate[] = { 87 88 #ifdef B0 89 { "0", B0 }, 90 #endif 91 #ifdef B50 92 { "50", B50 }, 93 #endif 94 #ifdef B75 95 { "75", B75 }, 96 #endif 97 #ifdef B110 98 { "110", B110 }, 99 #endif 100 #ifdef B134 101 { "134", B134 }, 102 #endif 103 #ifdef B150 104 { "150", B150 }, 105 #endif 106 #ifdef B200 107 { "200", B200 }, 108 #endif 109 #ifdef B300 110 { "300", B300 }, 111 #endif 112 #ifdef B600 113 { "600", B600 }, 114 #endif 115 #ifdef B900 116 { "900", B900 }, 117 #endif 118 #ifdef B1200 119 { "1200", B1200 }, 120 #endif 121 #ifdef B1800 122 { "1800", B1800 }, 123 #endif 124 #ifdef B2400 125 { "2400", B2400 }, 126 #endif 127 #ifdef B3600 128 { "3600", B3600 }, 129 #endif 130 #ifdef B4800 131 { "4800", B4800 }, 132 #endif 133 #ifdef B7200 134 { "7200", B7200 }, 135 #endif 136 #ifdef B9600 137 { "9600", B9600 }, 138 #endif 139 #ifdef EXTA 140 { "19200", EXTA }, 141 #endif 142 #ifdef B19200 143 { "19200", B19200 }, 144 #endif 145 #ifdef EXTB 146 { "38400", EXTB }, 147 #endif 148 #ifdef B38400 149 { "38400", B38400 }, 150 #endif 151 { NULL, 0 } 152 }; 153 154 #define T_al 0 155 #define T_bl 1 156 #define T_cd 2 157 #define T_ce 3 158 #define T_ch 4 159 #define T_cl 5 160 #define T_dc 6 161 #define T_dl 7 162 #define T_dm 8 163 #define T_ed 9 164 #define T_ei 10 165 #define T_fs 11 166 #define T_ho 12 167 #define T_ic 13 168 #define T_im 14 169 #define T_ip 15 170 #define T_kd 16 171 #define T_kl 17 172 #define T_kr 18 173 #define T_ku 19 174 #define T_md 20 175 #define T_me 21 176 #define T_nd 22 177 #define T_se 23 178 #define T_so 24 179 #define T_ts 25 180 #define T_up 26 181 #define T_us 27 182 #define T_ue 28 183 #define T_vb 29 184 #define T_DC 30 185 #define T_DO 31 186 #define T_IC 32 187 #define T_LE 33 188 #define T_RI 34 189 #define T_UP 35 190 #define T_kh 36 191 #define T_at7 37 192 #define T_str 38 193 static struct termcapstr { 194 char *name; 195 char *long_name; 196 char *str; 197 } tstr[T_str + 1]; 198 199 200 #define T_am 0 201 #define T_pt 1 202 #define T_li 2 203 #define T_co 3 204 #define T_km 4 205 #define T_xn 5 206 #define T_val 6 207 static struct termcapval { 208 char *name; 209 char *long_name; 210 int val; 211 } tval[T_val + 1]; 212 213 void 214 terminit() 215 { 216 #ifdef NLS_CATALOGS 217 int i; 218 219 for (i = 0; i < T_str + 1; i++) 220 xfree((ptr_t) tstr[i].long_name); 221 222 for (i = 0; i < T_val + 1; i++) 223 xfree((ptr_t) tval[i].long_name); 224 #endif 225 226 tstr[T_al].name = "al"; 227 tstr[T_al].long_name = CSAVS(4, 1, "add new blank line"); 228 229 tstr[T_bl].name = "bl"; 230 tstr[T_bl].long_name = CSAVS(4, 2, "audible bell"); 231 232 tstr[T_cd].name = "cd"; 233 tstr[T_cd].long_name = CSAVS(4, 3, "clear to bottom"); 234 235 tstr[T_ce].name = "ce"; 236 tstr[T_ce].long_name = CSAVS(4, 4, "clear to end of line"); 237 238 tstr[T_ch].name = "ch"; 239 tstr[T_ch].long_name = CSAVS(4, 5, "cursor to horiz pos"); 240 241 tstr[T_cl].name = "cl"; 242 tstr[T_cl].long_name = CSAVS(4, 6, "clear screen"); 243 244 tstr[T_dc].name = "dc"; 245 tstr[T_dc].long_name = CSAVS(4, 7, "delete a character"); 246 247 tstr[T_dl].name = "dl"; 248 tstr[T_dl].long_name = CSAVS(4, 8, "delete a line"); 249 250 tstr[T_dm].name = "dm"; 251 tstr[T_dm].long_name = CSAVS(4, 9, "start delete mode"); 252 253 tstr[T_ed].name = "ed"; 254 tstr[T_ed].long_name = CSAVS(4, 10, "end delete mode"); 255 256 tstr[T_ei].name = "ei"; 257 tstr[T_ei].long_name = CSAVS(4, 11, "end insert mode"); 258 259 tstr[T_fs].name = "fs"; 260 tstr[T_fs].long_name = CSAVS(4, 12, "cursor from status line"); 261 262 tstr[T_ho].name = "ho"; 263 tstr[T_ho].long_name = CSAVS(4, 13, "home cursor"); 264 265 tstr[T_ic].name = "ic"; 266 tstr[T_ic].long_name = CSAVS(4, 14, "insert character"); 267 268 tstr[T_im].name = "im"; 269 tstr[T_im].long_name = CSAVS(4, 15, "start insert mode"); 270 271 tstr[T_ip].name = "ip"; 272 tstr[T_ip].long_name = CSAVS(4, 16, "insert padding"); 273 274 tstr[T_kd].name = "kd"; 275 tstr[T_kd].long_name = CSAVS(4, 17, "sends cursor down"); 276 277 tstr[T_kl].name = "kl"; 278 tstr[T_kl].long_name = CSAVS(4, 18, "sends cursor left"); 279 280 tstr[T_kr].name = "kr"; 281 tstr[T_kr].long_name = CSAVS(4, 19, "sends cursor right"); 282 283 tstr[T_ku].name = "ku"; 284 tstr[T_ku].long_name = CSAVS(4, 20, "sends cursor up"); 285 286 tstr[T_md].name = "md"; 287 tstr[T_md].long_name = CSAVS(4, 21, "begin bold"); 288 289 tstr[T_me].name = "me"; 290 tstr[T_me].long_name = CSAVS(4, 22, "end attributes"); 291 292 tstr[T_nd].name = "nd"; 293 tstr[T_nd].long_name = CSAVS(4, 23, "non destructive space"); 294 295 tstr[T_se].name = "se"; 296 tstr[T_se].long_name = CSAVS(4, 24, "end standout"); 297 298 tstr[T_so].name = "so"; 299 tstr[T_so].long_name = CSAVS(4, 25, "begin standout"); 300 301 tstr[T_ts].name = "ts"; 302 tstr[T_ts].long_name = CSAVS(4, 26, "cursor to status line"); 303 304 tstr[T_up].name = "up"; 305 tstr[T_up].long_name = CSAVS(4, 27, "cursor up one"); 306 307 tstr[T_us].name = "us"; 308 tstr[T_us].long_name = CSAVS(4, 28, "begin underline"); 309 310 tstr[T_ue].name = "ue"; 311 tstr[T_ue].long_name = CSAVS(4, 29, "end underline"); 312 313 tstr[T_vb].name = "vb"; 314 tstr[T_vb].long_name = CSAVS(4, 30, "visible bell"); 315 316 tstr[T_DC].name = "DC"; 317 tstr[T_DC].long_name = CSAVS(4, 31, "delete multiple chars"); 318 319 tstr[T_DO].name = "DO"; 320 tstr[T_DO].long_name = CSAVS(4, 32, "cursor down multiple"); 321 322 tstr[T_IC].name = "IC"; 323 tstr[T_IC].long_name = CSAVS(4, 33, "insert multiple chars"); 324 325 tstr[T_LE].name = "LE"; 326 tstr[T_LE].long_name = CSAVS(4, 34, "cursor left multiple"); 327 328 tstr[T_RI].name = "RI"; 329 tstr[T_RI].long_name = CSAVS(4, 35, "cursor right multiple"); 330 331 tstr[T_UP].name = "UP"; 332 tstr[T_UP].long_name = CSAVS(4, 36, "cursor up multiple"); 333 334 tstr[T_kh].name = "kh"; 335 tstr[T_kh].long_name = CSAVS(4, 37, "send cursor home"); 336 337 tstr[T_at7].name = "@7"; 338 tstr[T_at7].long_name = CSAVS(4, 38, "send cursor end"); 339 340 tstr[T_str].name = NULL; 341 tstr[T_str].long_name = NULL; 342 343 344 tval[T_am].name = "am"; 345 tval[T_am].long_name = CSAVS(4, 37, "Has automatic margins"); 346 347 tval[T_pt].name = "pt"; 348 tval[T_pt].long_name = CSAVS(4, 38, "Can use physical tabs"); 349 350 tval[T_li].name = "li"; 351 tval[T_li].long_name = CSAVS(4, 39, "Number of lines"); 352 353 tval[T_co].name = "co"; 354 tval[T_co].long_name = CSAVS(4, 40, "Number of columns"); 355 356 tval[T_km].name = "km"; 357 tval[T_km].long_name = CSAVS(4, 41, "Has meta key"); 358 359 tval[T_xn].name = "xn"; 360 tval[T_xn].long_name = CSAVS(4, 42, "Newline ignored at right margin"); 361 362 tval[T_val].name = NULL; 363 tval[T_val].long_name = NULL; 364 } 365 366 /* 367 * A very useful table from justin@crim.ca (Justin Bur) :-) 368 * (Modified by per@erix.ericsson.se (Per Hedeland) 369 * - first (and second:-) case fixed) 370 * 371 * Description Termcap variables tcsh behavior 372 * am xn UseRightmost SendCRLF 373 * -------------- ------- ------- ------------ ------------ 374 * Automargins yes no yes no 375 * Magic Margins yes yes yes no 376 * No Wrap no -- yes yes 377 */ 378 379 static bool me_all = 0; /* does two or more of the attributes use me */ 380 381 static void ReBufferDisplay __P((void)); 382 static void TCalloc __P((struct termcapstr *, char *)); 383 384 385 static void 386 TCalloc(t, cap) 387 struct termcapstr *t; 388 char *cap; 389 { 390 static char termcap_alloc[TC_BUFSIZE]; 391 char termbuf[TC_BUFSIZE]; 392 struct termcapstr *ts; 393 static int tloc = 0; 394 int tlen, clen; 395 396 if (cap == NULL || *cap == '\0') { 397 t->str = NULL; 398 return; 399 } 400 else 401 clen = strlen(cap); 402 403 if (t->str == NULL) 404 tlen = 0; 405 else 406 tlen = strlen(t->str); 407 408 /* 409 * New string is shorter; no need to allocate space 410 */ 411 if (clen <= tlen) { 412 (void) strcpy(t->str, cap); 413 return; 414 } 415 416 /* 417 * New string is longer; see if we have enough space to append 418 */ 419 if (tloc + 3 < TC_BUFSIZE) { 420 (void) strcpy(t->str = &termcap_alloc[tloc], cap); 421 tloc += clen + 1; /* one for \0 */ 422 return; 423 } 424 425 /* 426 * Compact our buffer; no need to check compaction, cause we know it 427 * fits... 428 */ 429 tlen = 0; 430 for (ts = tstr; ts->name != NULL; ts++) 431 if (t != ts && ts->str != NULL && ts->str[0] != '\0') { 432 char *ptr; 433 434 for (ptr = ts->str; *ptr != '\0'; termbuf[tlen++] = *ptr++) 435 continue; 436 termbuf[tlen++] = '\0'; 437 } 438 (void) memmove((ptr_t) termcap_alloc, (ptr_t) termbuf, (size_t) TC_BUFSIZE); 439 tloc = tlen; 440 if (tloc + 3 >= TC_BUFSIZE) { 441 stderror(ERR_NAME | ERR_TCNOSTR); 442 return; 443 } 444 (void) strcpy(t->str = &termcap_alloc[tloc], cap); 445 tloc += clen + 1; /* one for \0 */ 446 return; 447 } 448 449 450 /*ARGSUSED*/ 451 void 452 TellTC(what) 453 char *what; 454 { 455 struct termcapstr *t; 456 457 USE(what); 458 xprintf(CGETS(7, 1, "\n\tTcsh thinks your terminal has the\n")); 459 xprintf(CGETS(7, 2, "\tfollowing characteristics:\n\n")); 460 xprintf(CGETS(7, 3, "\tIt has %d columns and %d lines\n"), 461 Val(T_co), Val(T_li)); 462 xprintf(CGETS(7, 4, "\tIt has %s meta key\n"), T_HasMeta ? 463 CGETS(7, 5, "a") : CGETS(7, 6, "no")); 464 xprintf(CGETS(7, 7, "\tIt can%s use tabs\n"), T_Tabs ? 465 "" : CGETS(7, 8, " not")); 466 xprintf(CGETS(7, 9, "\tIt %s automatic margins\n"), 467 (T_Margin&MARGIN_AUTO)? 468 CGETS(7, 10, "has"): 469 CGETS(7, 11, "does not have")); 470 if (T_Margin & MARGIN_AUTO) 471 xprintf(CGETS(7, 12, "\tIt %s magic margins\n"), 472 (T_Margin & MARGIN_MAGIC) ? 473 CGETS(7, 10, "has"): 474 CGETS(7, 11, "does not have")); 475 476 for (t = tstr; t->name != NULL; t++) 477 xprintf("\t%36s (%s) == %s\n", t->long_name, t->name, 478 t->str && *t->str ? t->str : CGETS(7, 13, "(empty)")); 479 xputchar('\n'); 480 } 481 482 483 static void 484 ReBufferDisplay() 485 { 486 register int i; 487 Char **b; 488 Char **bufp; 489 490 b = Display; 491 Display = NULL; 492 if (b != NULL) { 493 for (bufp = b; *bufp != NULL; bufp++) 494 xfree((ptr_t) * bufp); 495 xfree((ptr_t) b); 496 } 497 b = Vdisplay; 498 Vdisplay = NULL; 499 if (b != NULL) { 500 for (bufp = b; *bufp != NULL; bufp++) 501 xfree((ptr_t) * bufp); 502 xfree((ptr_t) b); 503 } 504 TermH = Val(T_co); 505 TermV = (INBUFSIZE * 4) / TermH + 1; 506 b = (Char **) xmalloc((size_t) (sizeof(Char *) * (TermV + 1))); 507 for (i = 0; i < TermV; i++) 508 b[i] = (Char *) xmalloc((size_t) (sizeof(Char) * (TermH + 1))); 509 b[TermV] = NULL; 510 Display = b; 511 b = (Char **) xmalloc((size_t) (sizeof(Char *) * (TermV + 1))); 512 for (i = 0; i < TermV; i++) 513 b[i] = (Char *) xmalloc((size_t) (sizeof(Char) * (TermH + 1))); 514 b[TermV] = NULL; 515 Vdisplay = b; 516 } 517 518 void 519 SetTC(what, how) 520 char *what, *how; 521 { 522 struct termcapstr *ts; 523 struct termcapval *tv; 524 525 /* 526 * Do the strings first 527 */ 528 setname("settc"); 529 for (ts = tstr; ts->name != NULL; ts++) 530 if (strcmp(ts->name, what) == 0) 531 break; 532 if (ts->name != NULL) { 533 TCalloc(ts, how); 534 /* 535 * Reset variables 536 */ 537 if (GoodStr(T_me) && GoodStr(T_ue)) 538 me_all = (strcmp(Str(T_me), Str(T_ue)) == 0); 539 else 540 me_all = 0; 541 if (GoodStr(T_me) && GoodStr(T_se)) 542 me_all |= (strcmp(Str(T_me), Str(T_se)) == 0); 543 544 T_CanCEOL = GoodStr(T_ce); 545 T_CanDel = GoodStr(T_dc) || GoodStr(T_DC); 546 T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC); 547 T_CanUP = GoodStr(T_up) || GoodStr(T_UP); 548 return; 549 } 550 551 /* 552 * Do the numeric ones second 553 */ 554 for (tv = tval; tv->name != NULL; tv++) 555 if (strcmp(tv->name, what) == 0) 556 break; 557 558 if (tv->name != NULL) { 559 if (tv == &tval[T_pt] || tv == &tval[T_km] || 560 tv == &tval[T_am] || tv == &tval[T_xn]) { 561 if (strcmp(how, "yes") == 0) 562 tv->val = 1; 563 else if (strcmp(how, "no") == 0) 564 tv->val = 0; 565 else { 566 stderror(ERR_SETTCUS, tv->name); 567 return; 568 } 569 T_Tabs = (Char) Val(T_pt); 570 T_HasMeta = (Char) Val(T_km); 571 T_Margin = (Char) Val(T_am) ? MARGIN_AUTO : 0; 572 T_Margin |= (Char) Val(T_xn) ? MARGIN_MAGIC : 0; 573 if (tv == &tval[T_am] || tv == &tval[T_xn]) 574 ChangeSize(Val(T_li), Val(T_co)); 575 return; 576 } 577 else { 578 tv->val = atoi(how); 579 T_Cols = (Char) Val(T_co); 580 T_Lines = (Char) Val(T_li); 581 if (tv == &tval[T_co] || tv == &tval[T_li]) 582 ChangeSize(Val(T_li), Val(T_co)); 583 return; 584 } 585 } 586 stderror(ERR_NAME | ERR_TCCAP, what); 587 return; 588 } 589 590 591 /* 592 * Print the termcap string out with variable substitution 593 */ 594 void 595 EchoTC(v) 596 Char **v; 597 { 598 char *cap, *scap, cv[BUFSIZE]; 599 int arg_need, arg_cols, arg_rows; 600 int verbose = 0, silent = 0; 601 char *area; 602 static char *fmts = "%s\n", *fmtd = "%d\n"; 603 struct termcapstr *t; 604 char buf[TC_BUFSIZE]; 605 606 area = buf; 607 608 setname("echotc"); 609 610 tglob(v); 611 if (gflag) { 612 v = globall(v); 613 if (v == 0) 614 stderror(ERR_NAME | ERR_NOMATCH); 615 } 616 else 617 v = gargv = saveblk(v); 618 trim(v); 619 620 if (!*v || *v[0] == '\0') 621 return; 622 if (v[0][0] == '-') { 623 switch (v[0][1]) { 624 case 'v': 625 verbose = 1; 626 break; 627 case 's': 628 silent = 1; 629 break; 630 default: 631 stderror(ERR_NAME | ERR_TCUSAGE); 632 break; 633 } 634 v++; 635 } 636 if (!*v || *v[0] == '\0') 637 return; 638 (void) strcpy(cv, short2str(*v)); 639 if (strcmp(cv, "tabs") == 0) { 640 xprintf(fmts, T_Tabs ? CGETS(7, 14, "yes") : 641 CGETS(7, 15, "no")); 642 flush(); 643 return; 644 } 645 else if (strcmp(cv, "meta") == 0) { 646 xprintf(fmts, Val(T_km) ? CGETS(7, 14, "yes") : 647 CGETS(7, 15, "no")); 648 flush(); 649 return; 650 } 651 else if (strcmp(cv, "xn") == 0) { 652 xprintf(fmts, T_Margin & MARGIN_MAGIC ? CGETS(7, 14, "yes") : 653 CGETS(7, 15, "no")); 654 flush(); 655 return; 656 } 657 else if (strcmp(cv, "am") == 0) { 658 xprintf(fmts, T_Margin & MARGIN_AUTO ? CGETS(7, 14, "yes") : 659 CGETS(7, 15, "no")); 660 flush(); 661 return; 662 } 663 else if (strcmp(cv, "baud") == 0) { 664 int i; 665 666 for (i = 0; baud_rate[i].b_name != NULL; i++) 667 if (T_Speed == baud_rate[i].b_rate) { 668 xprintf(fmts, baud_rate[i].b_name); 669 flush(); 670 return; 671 } 672 xprintf(fmtd, 0); 673 flush(); 674 return; 675 } 676 else if (strcmp(cv, "rows") == 0 || strcmp(cv, "lines") == 0) { 677 xprintf(fmtd, Val(T_li)); 678 flush(); 679 return; 680 } 681 else if (strcmp(cv, "cols") == 0) { 682 xprintf(fmtd, Val(T_co)); 683 flush(); 684 return; 685 } 686 687 /* 688 * Try to use our local definition first 689 */ 690 scap = NULL; 691 for (t = tstr; t->name != NULL; t++) 692 if (strcmp(t->name, cv) == 0) { 693 scap = t->str; 694 break; 695 } 696 if (t->name == NULL) 697 scap = tgetstr(cv, &area); 698 if (!scap || scap[0] == '\0') { 699 if (tgetflag(cv)) { 700 xprintf(CGETS(7, 14, "yes\n")); 701 return; 702 } 703 if (silent) 704 return; 705 else 706 stderror(ERR_NAME | ERR_TCCAP, cv); 707 } 708 709 /* 710 * Count home many values we need for this capability. 711 */ 712 for (cap = scap, arg_need = 0; *cap; cap++) 713 if (*cap == '%') 714 switch (*++cap) { 715 case 'd': 716 case '2': 717 case '3': 718 case '.': 719 case '+': 720 arg_need++; 721 break; 722 case '%': 723 case '>': 724 case 'i': 725 case 'r': 726 case 'n': 727 case 'B': 728 case 'D': 729 break; 730 default: 731 /* 732 * hpux has lot's of them... 733 */ 734 if (verbose) 735 stderror(ERR_NAME | ERR_TCPARM, *cap); 736 /* This is bad, but I won't complain */ 737 break; 738 } 739 740 switch (arg_need) { 741 case 0: 742 v++; 743 if (*v && *v[0]) { 744 if (silent) 745 return; 746 else 747 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); 748 } 749 (void) tputs(scap, 1, PUTRAW); 750 break; 751 case 1: 752 v++; 753 if (!*v || *v[0] == '\0') 754 stderror(ERR_NAME | ERR_TCNARGS, cv, 1); 755 arg_cols = 0; 756 arg_rows = atoi(short2str(*v)); 757 v++; 758 if (*v && *v[0]) { 759 if (silent) 760 return; 761 else 762 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); 763 } 764 (void) tputs(tgoto(scap, arg_cols, arg_rows), 1, PUTRAW); 765 break; 766 default: 767 /* This is wrong, but I will ignore it... */ 768 if (verbose) 769 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); 770 /*FALLTHROUGH*/ 771 case 2: 772 v++; 773 if (!*v || *v[0] == '\0') { 774 if (silent) 775 return; 776 else 777 stderror(ERR_NAME | ERR_TCNARGS, cv, 2); 778 } 779 arg_cols = atoi(short2str(*v)); 780 v++; 781 if (!*v || *v[0] == '\0') { 782 if (silent) 783 return; 784 else 785 stderror(ERR_NAME | ERR_TCNARGS, cv, 2); 786 } 787 arg_rows = atoi(short2str(*v)); 788 v++; 789 if (*v && *v[0]) { 790 if (silent) 791 return; 792 else 793 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); 794 } 795 (void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, PUTRAW); 796 break; 797 } 798 flush(); 799 if (gargv) { 800 blkfree(gargv); 801 gargv = 0; 802 } 803 } 804 805 bool GotTermCaps = 0; 806 807 static struct { 808 Char *name; 809 int key; 810 XmapVal fun; 811 int type; 812 } arrow[] = { 813 #define A_K_DN 0 814 { STRdown, T_kd }, 815 #define A_K_UP 1 816 { STRup, T_ku }, 817 #define A_K_LT 2 818 { STRleft, T_kl }, 819 #define A_K_RT 3 820 { STRright, T_kr }, 821 #define A_K_HO 4 822 { STRhome, T_kh }, 823 #define A_K_EN 5 824 { STRend, T_at7} 825 }; 826 #define A_K_NKEYS 6 827 828 void 829 ResetArrowKeys() 830 { 831 arrow[A_K_DN].fun.cmd = F_DOWN_HIST; 832 arrow[A_K_DN].type = XK_CMD; 833 834 arrow[A_K_UP].fun.cmd = F_UP_HIST; 835 arrow[A_K_UP].type = XK_CMD; 836 837 arrow[A_K_LT].fun.cmd = F_CHARBACK; 838 arrow[A_K_LT].type = XK_CMD; 839 840 arrow[A_K_RT].fun.cmd = F_CHARFWD; 841 arrow[A_K_RT].type = XK_CMD; 842 843 arrow[A_K_HO].fun.cmd = F_TOBEG; 844 arrow[A_K_HO].type = XK_CMD; 845 846 arrow[A_K_EN].fun.cmd = F_TOEND; 847 arrow[A_K_EN].type = XK_CMD; 848 } 849 850 void 851 DefaultArrowKeys() 852 { 853 static Char strA[] = {033, '[', 'A', '\0'}; 854 static Char strB[] = {033, '[', 'B', '\0'}; 855 static Char strC[] = {033, '[', 'C', '\0'}; 856 static Char strD[] = {033, '[', 'D', '\0'}; 857 static Char strH[] = {033, '[', 'H', '\0'}; 858 static Char strF[] = {033, '[', 'F', '\0'}; 859 static Char stOA[] = {033, 'O', 'A', '\0'}; 860 static Char stOB[] = {033, 'O', 'B', '\0'}; 861 static Char stOC[] = {033, 'O', 'C', '\0'}; 862 static Char stOD[] = {033, 'O', 'D', '\0'}; 863 static Char stOH[] = {033, 'O', 'H', '\0'}; 864 static Char stOF[] = {033, 'O', 'F', '\0'}; 865 866 CStr cs; 867 #ifndef IS_ASCII 868 if (strA[0] == 033) 869 { 870 strA[0] = CTL_ESC('\033'); 871 strB[0] = CTL_ESC('\033'); 872 strC[0] = CTL_ESC('\033'); 873 strD[0] = CTL_ESC('\033'); 874 strH[0] = CTL_ESC('\033'); 875 strF[0] = CTL_ESC('\033'); 876 stOA[0] = CTL_ESC('\033'); 877 stOB[0] = CTL_ESC('\033'); 878 stOC[0] = CTL_ESC('\033'); 879 stOD[0] = CTL_ESC('\033'); 880 stOH[0] = CTL_ESC('\033'); 881 stOF[0] = CTL_ESC('\033'); 882 } 883 #endif 884 885 cs.len = 3; 886 887 cs.buf = strA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 888 cs.buf = strB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 889 cs.buf = strC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 890 cs.buf = strD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 891 cs.buf = strH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 892 cs.buf = strF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 893 cs.buf = stOA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 894 cs.buf = stOB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 895 cs.buf = stOC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 896 cs.buf = stOD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 897 cs.buf = stOH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 898 cs.buf = stOF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 899 900 if (VImode) { 901 cs.len = 2; 902 cs.buf = &strA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 903 cs.buf = &strB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 904 cs.buf = &strC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 905 cs.buf = &strD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 906 cs.buf = &strH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 907 cs.buf = &strF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 908 cs.buf = &stOA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); 909 cs.buf = &stOB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); 910 cs.buf = &stOC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); 911 cs.buf = &stOD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); 912 cs.buf = &stOH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); 913 cs.buf = &stOF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); 914 } 915 } 916 917 918 int 919 SetArrowKeys(name, fun, type) 920 CStr *name; 921 XmapVal *fun; 922 int type; 923 { 924 int i; 925 for (i = 0; i < A_K_NKEYS; i++) 926 if (Strcmp(name->buf, arrow[i].name) == 0) { 927 arrow[i].fun = *fun; 928 arrow[i].type = type; 929 return 0; 930 } 931 return -1; 932 } 933 934 int 935 IsArrowKey(name) 936 Char *name; 937 { 938 int i; 939 for (i = 0; i < A_K_NKEYS; i++) 940 if (Strcmp(name, arrow[i].name) == 0) 941 return 1; 942 return 0; 943 } 944 945 int 946 ClearArrowKeys(name) 947 CStr *name; 948 { 949 int i; 950 for (i = 0; i < A_K_NKEYS; i++) 951 if (Strcmp(name->buf, arrow[i].name) == 0) { 952 arrow[i].type = XK_NOD; 953 return 0; 954 } 955 return -1; 956 } 957 958 void 959 PrintArrowKeys(name) 960 CStr *name; 961 { 962 int i; 963 964 for (i = 0; i < A_K_NKEYS; i++) 965 if (name->len == 0 || Strcmp(name->buf, arrow[i].name) == 0) 966 if (arrow[i].type != XK_NOD) { 967 CStr cs; 968 cs.buf = arrow[i].name; 969 cs.len = Strlen(cs.buf); 970 (void) printOne(&cs, &arrow[i].fun, arrow[i].type); 971 } 972 } 973 974 975 void 976 BindArrowKeys() 977 { 978 KEYCMD *map, *dmap; 979 int i, j; 980 char *p; 981 CStr cs; 982 983 if (!GotTermCaps) 984 return; 985 map = VImode ? CcAltMap : CcKeyMap; 986 dmap = VImode ? CcViCmdMap : CcEmacsMap; 987 988 DefaultArrowKeys(); 989 990 for (i = 0; i < A_K_NKEYS; i++) { 991 p = tstr[arrow[i].key].str; 992 if (p && *p) { 993 j = (unsigned char) *p; 994 cs.buf = str2short(p); 995 cs.len = Strlen(cs.buf); 996 /* 997 * Assign the arrow keys only if: 998 * 999 * 1. They are multi-character arrow keys and the user 1000 * has not re-assigned the leading character, or 1001 * has re-assigned the leading character to be F_XKEY 1002 * 2. They are single arrow keys pointing to an unassigned key. 1003 */ 1004 if (arrow[i].type == XK_NOD) { 1005 ClearXkey(map, &cs); 1006 } 1007 else { 1008 if (p[1] && (dmap[j] == map[j] || map[j] == F_XKEY)) { 1009 AddXkey(&cs, &arrow[i].fun, arrow[i].type); 1010 map[j] = F_XKEY; 1011 } 1012 else if (map[j] == F_UNASSIGNED) { 1013 ClearXkey(map, &cs); 1014 if (arrow[i].type == XK_CMD) 1015 map[j] = arrow[i].fun.cmd; 1016 else 1017 AddXkey(&cs, &arrow[i].fun, arrow[i].type); 1018 } 1019 } 1020 } 1021 } 1022 } 1023 1024 static Char cur_atr = 0; /* current attributes */ 1025 1026 void 1027 SetAttributes(atr) 1028 int atr; 1029 { 1030 atr &= ATTRIBUTES; 1031 if (atr != cur_atr) { 1032 if (me_all && GoodStr(T_me)) { 1033 if (((cur_atr & BOLD) && !(atr & BOLD)) || 1034 ((cur_atr & UNDER) && !(atr & UNDER)) || 1035 ((cur_atr & STANDOUT) && !(atr & STANDOUT))) { 1036 (void) tputs(Str(T_me), 1, PUTPURE); 1037 cur_atr = 0; 1038 } 1039 } 1040 if ((atr & BOLD) != (cur_atr & BOLD)) { 1041 if (atr & BOLD) { 1042 if (GoodStr(T_md) && GoodStr(T_me)) { 1043 (void) tputs(Str(T_md), 1, PUTPURE); 1044 cur_atr |= BOLD; 1045 } 1046 } 1047 else { 1048 if (GoodStr(T_md) && GoodStr(T_me)) { 1049 (void) tputs(Str(T_me), 1, PUTPURE); 1050 if ((cur_atr & STANDOUT) && GoodStr(T_se)) { 1051 (void) tputs(Str(T_se), 1, PUTPURE); 1052 cur_atr &= ~STANDOUT; 1053 } 1054 if ((cur_atr & UNDER) && GoodStr(T_ue)) { 1055 (void) tputs(Str(T_ue), 1, PUTPURE); 1056 cur_atr &= ~UNDER; 1057 } 1058 cur_atr &= ~BOLD; 1059 } 1060 } 1061 } 1062 if ((atr & STANDOUT) != (cur_atr & STANDOUT)) { 1063 if (atr & STANDOUT) { 1064 if (GoodStr(T_so) && GoodStr(T_se)) { 1065 (void) tputs(Str(T_so), 1, PUTPURE); 1066 cur_atr |= STANDOUT; 1067 } 1068 } 1069 else { 1070 if (GoodStr(T_se)) { 1071 (void) tputs(Str(T_se), 1, PUTPURE); 1072 cur_atr &= ~STANDOUT; 1073 } 1074 } 1075 } 1076 if ((atr & UNDER) != (cur_atr & UNDER)) { 1077 if (atr & UNDER) { 1078 if (GoodStr(T_us) && GoodStr(T_ue)) { 1079 (void) tputs(Str(T_us), 1, PUTPURE); 1080 cur_atr |= UNDER; 1081 } 1082 } 1083 else { 1084 if (GoodStr(T_ue)) { 1085 (void) tputs(Str(T_ue), 1, PUTPURE); 1086 cur_atr &= ~UNDER; 1087 } 1088 } 1089 } 1090 } 1091 } 1092 1093 /* PWP 6-27-88 -- if the tty driver thinks that we can tab, we ask termcap */ 1094 int 1095 CanWeTab() 1096 { 1097 return (Val(T_pt)); 1098 } 1099 1100 void 1101 MoveToLine(where) /* move to line <where> (first line == 0) */ 1102 int where; /* as efficiently as possible; */ 1103 { 1104 int del; 1105 1106 if (where == CursorV) 1107 return; 1108 1109 if (where > TermV) { 1110 #ifdef DEBUG_SCREEN 1111 xprintf("MoveToLine: where is ridiculous: %d\r\n", where); 1112 flush(); 1113 #endif /* DEBUG_SCREEN */ 1114 return; 1115 } 1116 1117 del = where - CursorV; 1118 1119 #ifndef WINNT_NATIVE 1120 if (del > 0) { 1121 while (del > 0) { 1122 if ((T_Margin & MARGIN_AUTO) && Display[CursorV][0] != '\0') { 1123 /* move without newline */ 1124 MoveToChar(TermH - 1); 1125 so_write(&Display[CursorV][CursorH], 1); /* updates CursorH/V*/ 1126 del--; 1127 } 1128 else { 1129 if ((del > 1) && GoodStr(T_DO)) { 1130 (void) tputs(tgoto(Str(T_DO), del, del), del, PUTPURE); 1131 del = 0; 1132 } 1133 else { 1134 for ( ; del > 0; del--) 1135 (void) putraw('\n'); 1136 CursorH = 0; /* because the \n will become \r\n */ 1137 } 1138 } 1139 } 1140 } 1141 else { /* del < 0 */ 1142 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) 1143 (void) tputs(tgoto(Str(T_UP), -del, -del), -del, PUTPURE); 1144 else { 1145 int i; 1146 if (GoodStr(T_up)) 1147 for (i = 0; i < -del; i++) 1148 (void) tputs(Str(T_up), 1, PUTPURE); 1149 } 1150 } 1151 #else /* WINNT_NATIVE */ 1152 NT_MoveToLineOrChar(del, 1); 1153 #endif /* !WINNT_NATIVE */ 1154 CursorV = where; /* now where is here */ 1155 } 1156 1157 void 1158 MoveToChar(where) /* move to character position (where) */ 1159 int where; 1160 { /* as efficiently as possible */ 1161 #ifndef WINNT_NATIVE 1162 int del; 1163 1164 mc_again: 1165 #endif /* WINNT_NATIVE */ 1166 if (where == CursorH) 1167 return; 1168 1169 if (where >= TermH) { 1170 #ifdef DEBUG_SCREEN 1171 xprintf("MoveToChar: where is riduculous: %d\r\n", where); 1172 flush(); 1173 #endif /* DEBUG_SCREEN */ 1174 return; 1175 } 1176 1177 if (!where) { /* if where is first column */ 1178 (void) putraw('\r'); /* do a CR */ 1179 CursorH = 0; 1180 return; 1181 } 1182 1183 #ifndef WINNT_NATIVE 1184 del = where - CursorH; 1185 1186 if ((del < -4 || del > 4) && GoodStr(T_ch)) 1187 /* go there directly */ 1188 (void) tputs(tgoto(Str(T_ch), where, where), where, PUTPURE); 1189 else { 1190 int i; 1191 if (del > 0) { /* moving forward */ 1192 if ((del > 4) && GoodStr(T_RI)) 1193 (void) tputs(tgoto(Str(T_RI), del, del), del, PUTPURE); 1194 else { 1195 /* if I can do tabs, use them */ 1196 if (T_Tabs 1197 #ifdef DSPMBYTE 1198 && !_enable_mbdisp 1199 #endif /* DSPMBYTE */ 1200 ) { 1201 if ((CursorH & 0370) != (where & 0370)) { 1202 /* if not within tab stop */ 1203 for (i = (CursorH & 0370); i < (where & 0370); i += 8) 1204 (void) putraw('\t'); /* then tab over */ 1205 CursorH = where & 0370; 1206 /* Note: considering that we often want to go to 1207 TermH - 1 for the wrapping, it would be nice to 1208 optimize this case by tabbing to the last column 1209 - but this doesn't work for all terminals! */ 1210 } 1211 } 1212 /* it's usually cheaper to just write the chars, so we do. */ 1213 1214 /* NOTE THAT so_write() WILL CHANGE CursorH!!! */ 1215 so_write(&Display[CursorV][CursorH], where - CursorH); 1216 1217 } 1218 } 1219 else { /* del < 0 := moving backward */ 1220 if ((-del > 4) && GoodStr(T_LE)) 1221 (void) tputs(tgoto(Str(T_LE), -del, -del), -del, PUTPURE); 1222 else { /* can't go directly there */ 1223 /* if the "cost" is greater than the "cost" from col 0 */ 1224 if (T_Tabs ? (-del > ((where >> 3) + (where & 07))) 1225 : (-del > where)) { 1226 (void) putraw('\r'); /* do a CR */ 1227 CursorH = 0; 1228 goto mc_again; /* and try again */ 1229 } 1230 for (i = 0; i < -del; i++) 1231 (void) putraw('\b'); 1232 } 1233 } 1234 } 1235 #else /* WINNT_NATIVE */ 1236 NT_MoveToLineOrChar(where, 0); 1237 #endif /* !WINNT_NATIVE */ 1238 CursorH = where; /* now where is here */ 1239 } 1240 1241 void 1242 so_write(cp, n) 1243 register Char *cp; 1244 register int n; 1245 { 1246 if (n <= 0) 1247 return; /* catch bugs */ 1248 1249 if (n > TermH) { 1250 #ifdef DEBUG_SCREEN 1251 xprintf("so_write: n is riduculous: %d\r\n", n); 1252 flush(); 1253 #endif /* DEBUG_SCREEN */ 1254 return; 1255 } 1256 1257 do { 1258 if (*cp & LITERAL) { 1259 extern Char *litptr[]; 1260 Char *d; 1261 1262 #ifdef DEBUG_LITERAL 1263 xprintf("so: litnum %d, litptr %x\r\n", 1264 *cp & CHAR, litptr[*cp & CHAR]); 1265 #endif /* DEBUG_LITERAL */ 1266 #if defined(WINNT_NATIVE) && !defined(COLOR_LS_F) 1267 { 1268 char buf[256], *ptr = &buf[0]; 1269 for (d = litptr[*cp++ & CHAR]; *d & LITERAL; d++) 1270 *ptr++ = (*d & CHAR); 1271 flush(); 1272 set_cons_attr(buf); 1273 } 1274 #else /* !WINNT_NATIVE || COLOR_LS_F */ 1275 for (d = litptr[*cp++ & CHAR]; *d & LITERAL; d++) 1276 (void) putraw(*d & CHAR); 1277 #endif /* WINNT_NATIVE && !COLOR_LS_F */ 1278 (void) putraw(*d); 1279 1280 } 1281 else 1282 (void) putraw(*cp++); 1283 CursorH++; 1284 } while (--n); 1285 1286 if (CursorH >= TermH) { /* wrap? */ 1287 if (T_Margin & MARGIN_AUTO) { /* yes */ 1288 CursorH = 0; 1289 CursorV++; 1290 if (T_Margin & MARGIN_MAGIC) { 1291 /* force the wrap to avoid the "magic" situation */ 1292 Char c; 1293 if ((c = Display[CursorV][CursorH]) != '\0') 1294 so_write(&c, 1); 1295 else 1296 (void) putraw(' '); 1297 CursorH = 1; 1298 } 1299 } 1300 else /* no wrap, but cursor stays on screen */ 1301 CursorH = TermH - 1; 1302 } 1303 } 1304 1305 1306 void 1307 DeleteChars(num) /* deletes <num> characters */ 1308 int num; 1309 { 1310 if (num <= 0) 1311 return; 1312 1313 if (!T_CanDel) { 1314 #ifdef DEBUG_EDIT 1315 xprintf(CGETS(7, 16, "ERROR: cannot delete\r\n")); 1316 #endif /* DEBUG_EDIT */ 1317 flush(); 1318 return; 1319 } 1320 1321 if (num > TermH) { 1322 #ifdef DEBUG_SCREEN 1323 xprintf(CGETS(7, 17, "DeleteChars: num is riduculous: %d\r\n"), num); 1324 flush(); 1325 #endif /* DEBUG_SCREEN */ 1326 return; 1327 } 1328 1329 if (GoodStr(T_DC)) /* if I have multiple delete */ 1330 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more expen. */ 1331 (void) tputs(tgoto(Str(T_DC), num, num), num, PUTPURE); 1332 return; 1333 } 1334 1335 if (GoodStr(T_dm)) /* if I have delete mode */ 1336 (void) tputs(Str(T_dm), 1, PUTPURE); 1337 1338 if (GoodStr(T_dc)) /* else do one at a time */ 1339 while (num--) 1340 (void) tputs(Str(T_dc), 1, PUTPURE); 1341 1342 if (GoodStr(T_ed)) /* if I have delete mode */ 1343 (void) tputs(Str(T_ed), 1, PUTPURE); 1344 } 1345 1346 void 1347 Insert_write(cp, num) /* Puts terminal in insert character mode, */ 1348 register Char *cp; 1349 register int num; /* or inserts num characters in the line */ 1350 { 1351 if (num <= 0) 1352 return; 1353 if (!T_CanIns) { 1354 #ifdef DEBUG_EDIT 1355 xprintf(CGETS(7, 18, "ERROR: cannot insert\r\n")); 1356 #endif /* DEBUG_EDIT */ 1357 flush(); 1358 return; 1359 } 1360 1361 if (num > TermH) { 1362 #ifdef DEBUG_SCREEN 1363 xprintf(CGETS(7, 19, "StartInsert: num is riduculous: %d\r\n"), num); 1364 flush(); 1365 #endif /* DEBUG_SCREEN */ 1366 return; 1367 } 1368 1369 if (GoodStr(T_IC)) /* if I have multiple insert */ 1370 if ((num > 1) || !GoodStr(T_ic)) { /* if ic would be more expen. */ 1371 (void) tputs(tgoto(Str(T_IC), num, num), num, PUTPURE); 1372 so_write(cp, num); /* this updates CursorH/V */ 1373 return; 1374 } 1375 1376 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ 1377 (void) tputs(Str(T_im), 1, PUTPURE); 1378 1379 CursorH += num; 1380 do 1381 (void) putraw(*cp++); 1382 while (--num); 1383 1384 if (GoodStr(T_ip)) /* have to make num chars insert */ 1385 (void) tputs(Str(T_ip), 1, PUTPURE); 1386 1387 (void) tputs(Str(T_ei), 1, PUTPURE); 1388 return; 1389 } 1390 1391 do { 1392 if (GoodStr(T_ic)) /* have to make num chars insert */ 1393 (void) tputs(Str(T_ic), 1, PUTPURE); /* insert a char */ 1394 1395 (void) putraw(*cp++); 1396 1397 CursorH++; 1398 1399 if (GoodStr(T_ip)) /* have to make num chars insert */ 1400 (void) tputs(Str(T_ip), 1, PUTPURE);/* pad the inserted char */ 1401 1402 } while (--num); 1403 1404 } 1405 1406 void 1407 ClearEOL(num) /* clear to end of line. There are num */ 1408 int num; /* characters to clear */ 1409 { 1410 register int i; 1411 1412 if (num <= 0) 1413 return; 1414 1415 if (T_CanCEOL && GoodStr(T_ce)) 1416 (void) tputs(Str(T_ce), 1, PUTPURE); 1417 else { 1418 for (i = 0; i < num; i++) 1419 (void) putraw(' '); 1420 CursorH += num; /* have written num spaces */ 1421 } 1422 } 1423 1424 void 1425 ClearScreen() 1426 { /* clear the whole screen and home */ 1427 if (GoodStr(T_cl)) 1428 /* send the clear screen code */ 1429 (void) tputs(Str(T_cl), Val(T_li), PUTPURE); 1430 else if (GoodStr(T_ho) && GoodStr(T_cd)) { 1431 (void) tputs(Str(T_ho), Val(T_li), PUTPURE); /* home */ 1432 /* clear to bottom of screen */ 1433 (void) tputs(Str(T_cd), Val(T_li), PUTPURE); 1434 } 1435 else { 1436 (void) putraw('\r'); 1437 (void) putraw('\n'); 1438 } 1439 } 1440 1441 void 1442 SoundBeep() 1443 { /* produce a sound */ 1444 beep_cmd (); 1445 if (adrof(STRnobeep)) 1446 return; 1447 1448 if (GoodStr(T_vb) && adrof(STRvisiblebell)) 1449 (void) tputs(Str(T_vb), 1, PUTPURE); /* visible bell */ 1450 else if (GoodStr(T_bl)) 1451 /* what termcap says we should use */ 1452 (void) tputs(Str(T_bl), 1, PUTPURE); 1453 else 1454 #ifndef WINNT_NATIVE 1455 (void) putraw(CTL_ESC('\007')); /* an ASCII bell; ^G */ 1456 #else /* WINNT_NATIVE */ 1457 MessageBeep(MB_ICONQUESTION); 1458 #endif /* !WINNT_NATIVE */ 1459 } 1460 1461 void 1462 ClearToBottom() 1463 { /* clear to the bottom of the screen */ 1464 if (GoodStr(T_cd)) 1465 (void) tputs(Str(T_cd), Val(T_li), PUTPURE); 1466 else if (GoodStr(T_ce)) 1467 (void) tputs(Str(T_ce), Val(T_li), PUTPURE); 1468 } 1469 1470 void 1471 GetTermCaps() 1472 { /* read in the needed terminal capabilites */ 1473 register int i; 1474 char *ptr; 1475 char buf[TC_BUFSIZE]; 1476 static char bp[TC_BUFSIZE]; 1477 char *area; 1478 struct termcapstr *t; 1479 1480 1481 #ifdef SIG_WINDOW 1482 # ifdef BSDSIGS 1483 sigmask_t omask; 1484 # endif /* BSDSIGS */ 1485 int lins, cols; 1486 1487 /* don't want to confuse things here */ 1488 # ifdef BSDSIGS 1489 omask = sigblock(sigmask(SIG_WINDOW)) & ~sigmask(SIG_WINDOW); 1490 # else /* BSDSIGS */ 1491 (void) sighold(SIG_WINDOW); 1492 # endif /* BSDSIGS */ 1493 #endif /* SIG_WINDOW */ 1494 area = buf; 1495 1496 GotTermCaps = 1; 1497 1498 setname("gettermcaps"); 1499 ptr = getenv("TERM"); 1500 1501 #ifdef apollo 1502 /* 1503 * If we are on a pad, we pretend that we are dumb. Otherwise the termcap 1504 * library will put us in a weird screen mode, thinking that we are going 1505 * to use curses 1506 */ 1507 if (isapad()) 1508 ptr = "dumb"; 1509 #endif /* apollo */ 1510 1511 if (!ptr || !ptr[0] || !strcmp(ptr, "wm") || !strcmp(ptr,"dmx")) 1512 ptr = "dumb"; 1513 1514 setzero(bp, TC_BUFSIZE); 1515 1516 i = tgetent(bp, ptr); 1517 if (i <= 0) { 1518 if (i == -1) { 1519 #if (SYSVREL == 0) || defined(IRIS3D) 1520 xprintf(CGETS(7, 20, "%s: Cannot open /etc/termcap.\n"), progname); 1521 } 1522 else if (i == 0) { 1523 #endif /* SYSVREL */ 1524 xprintf(CGETS(7, 21, 1525 "%s: No entry for terminal type \"%s\"\n"), progname, 1526 getenv("TERM")); 1527 } 1528 xprintf(CGETS(7, 22, "%s: using dumb terminal settings.\n"), progname); 1529 Val(T_co) = 80; /* do a dumb terminal */ 1530 Val(T_pt) = Val(T_km) = Val(T_li) = 0; 1531 for (t = tstr; t->name != NULL; t++) 1532 TCalloc(t, NULL); 1533 } 1534 else { 1535 /* Can we tab */ 1536 Val(T_pt) = tgetflag("pt") && !tgetflag("xt"); 1537 /* do we have a meta? */ 1538 Val(T_km) = (tgetflag("km") || tgetflag("MT")); 1539 Val(T_am) = tgetflag("am"); 1540 Val(T_xn) = tgetflag("xn"); 1541 Val(T_co) = tgetnum("co"); 1542 Val(T_li) = tgetnum("li"); 1543 for (t = tstr; t->name != NULL; t++) 1544 TCalloc(t, tgetstr(t->name, &area)); 1545 } 1546 if (Val(T_co) < 2) 1547 Val(T_co) = 80; /* just in case */ 1548 if (Val(T_li) < 1) 1549 Val(T_li) = 24; 1550 1551 T_Cols = (Char) Val(T_co); 1552 T_Lines = (Char) Val(T_li); 1553 if (T_Tabs) 1554 T_Tabs = (Char) Val(T_pt); 1555 T_HasMeta = (Char) Val(T_km); 1556 T_Margin = (Char) Val(T_am) ? MARGIN_AUTO : 0; 1557 T_Margin |= (Char) Val(T_xn) ? MARGIN_MAGIC : 0; 1558 T_CanCEOL = GoodStr(T_ce); 1559 T_CanDel = GoodStr(T_dc) || GoodStr(T_DC); 1560 T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC); 1561 T_CanUP = GoodStr(T_up) || GoodStr(T_UP); 1562 if (GoodStr(T_me) && GoodStr(T_ue)) 1563 me_all = (strcmp(Str(T_me), Str(T_ue)) == 0); 1564 else 1565 me_all = 0; 1566 if (GoodStr(T_me) && GoodStr(T_se)) 1567 me_all |= (strcmp(Str(T_me), Str(T_se)) == 0); 1568 1569 1570 #ifdef DEBUG_SCREEN 1571 if (!T_CanUP) { 1572 xprintf(CGETS(7, 23, "%s: WARNING: Your terminal cannot move up.\n", 1573 progname)); 1574 xprintf(CGETS(7, 24, "Editing may be odd for long lines.\n")); 1575 } 1576 if (!T_CanCEOL) 1577 xprintf(CGETS(7, 25, "no clear EOL capability.\n")); 1578 if (!T_CanDel) 1579 xprintf(CGETS(7, 26, "no delete char capability.\n")); 1580 if (!T_CanIns) 1581 xprintf(CGETS(7, 27, "no insert char capability.\n")); 1582 #endif /* DEBUG_SCREEN */ 1583 1584 1585 1586 #ifdef SIG_WINDOW 1587 (void) GetSize(&lins, &cols); /* get the correct window size */ 1588 ChangeSize(lins, cols); 1589 1590 # ifdef BSDSIGS 1591 (void) sigsetmask(omask); /* can change it again */ 1592 # else /* BSDSIGS */ 1593 (void) sigrelse(SIG_WINDOW); 1594 # endif /* BSDSIGS */ 1595 #else /* SIG_WINDOW */ 1596 ChangeSize(Val(T_li), Val(T_co)); 1597 #endif /* SIG_WINDOW */ 1598 1599 BindArrowKeys(); 1600 } 1601 1602 #ifdef SIG_WINDOW 1603 /* GetSize(): 1604 * Return the new window size in lines and cols, and 1605 * true if the size was changed. This can fail if SHIN 1606 * is not a tty, but it will work in most cases. 1607 */ 1608 int 1609 GetSize(lins, cols) 1610 int *lins, *cols; 1611 { 1612 *cols = Val(T_co); 1613 *lins = Val(T_li); 1614 1615 #ifdef TIOCGWINSZ 1616 # define KNOWsize 1617 # ifndef lint 1618 { 1619 struct winsize ws; /* from 4.3 */ 1620 1621 if (ioctl(SHIN, TIOCGWINSZ, (ioctl_t) &ws) != -1) { 1622 if (ws.ws_col) 1623 *cols = ws.ws_col; 1624 if (ws.ws_row) 1625 *lins = ws.ws_row; 1626 } 1627 } 1628 # endif /* !lint */ 1629 #else /* TIOCGWINSZ */ 1630 # ifdef TIOCGSIZE 1631 # define KNOWsize 1632 { 1633 struct ttysize ts; /* from Sun */ 1634 1635 if (ioctl(SHIN, TIOCGSIZE, (ioctl_t) &ts) != -1) { 1636 if (ts.ts_cols) 1637 *cols = ts.ts_cols; 1638 if (ts.ts_lines) 1639 *lins = ts.ts_lines; 1640 } 1641 } 1642 # endif /* TIOCGSIZE */ 1643 #endif /* TIOCGWINSZ */ 1644 1645 return (Val(T_co) != *cols || Val(T_li) != *lins); 1646 } 1647 1648 #endif /* SIGWINDOW */ 1649 1650 void 1651 ChangeSize(lins, cols) 1652 int lins, cols; 1653 { 1654 /* 1655 * Just in case 1656 */ 1657 Val(T_co) = (cols < 2) ? 80 : cols; 1658 Val(T_li) = (lins < 1) ? 24 : lins; 1659 1660 #ifdef WINNT_NATIVE 1661 nt_set_size(lins,cols); 1662 #endif /* WINNT_NATIVE */ 1663 #ifdef KNOWsize 1664 /* 1665 * We want to affect the environment only when we have a valid 1666 * setup, not when we get bad settings. Consider the following scenario: 1667 * We just logged in, and we have not initialized the editor yet. 1668 * We reset termcap with tset, and not $TERMCAP has the right 1669 * terminal size. But since the editor is not initialized yet, and 1670 * the kernel's notion of the terminal size might be wrong we arrive 1671 * here with lines = columns = 0. If we reset the environment we lose 1672 * our only chance to get the window size right. 1673 */ 1674 if (Val(T_co) == cols && Val(T_li) == lins) { 1675 Char buf[10]; 1676 char *tptr; 1677 1678 if (getenv("COLUMNS")) { 1679 (void) Itoa(Val(T_co), buf, 0, 0); 1680 tsetenv(STRCOLUMNS, buf); 1681 } 1682 1683 if (getenv("LINES")) { 1684 (void) Itoa(Val(T_li), buf, 0, 0); 1685 tsetenv(STRLINES, buf); 1686 } 1687 1688 if ((tptr = getenv("TERMCAP")) != NULL) { 1689 /* Leave 64 characters slop in case we enlarge the termcap string */ 1690 Char termcap[1024+64], backup[1024+64], *ptr; 1691 int i; 1692 1693 ptr = str2short(tptr); 1694 (void) Strncpy(termcap, ptr, 1024); 1695 termcap[1023] = '\0'; 1696 1697 /* update termcap string; first do columns */ 1698 buf[0] = 'c'; 1699 buf[1] = 'o'; 1700 buf[2] = '#'; 1701 buf[3] = '\0'; 1702 if ((ptr = Strstr(termcap, buf)) == NULL) { 1703 (void) Strcpy(backup, termcap); 1704 } 1705 else { 1706 i = (int) (ptr - termcap + Strlen(buf)); 1707 (void) Strncpy(backup, termcap, (size_t) i); 1708 backup[i] = '\0'; 1709 (void) Itoa(Val(T_co), buf, 0, 0); 1710 (void) Strcat(backup + i, buf); 1711 ptr = Strchr(ptr, ':'); 1712 (void) Strcat(backup, ptr); 1713 } 1714 1715 /* now do lines */ 1716 buf[0] = 'l'; 1717 buf[1] = 'i'; 1718 buf[2] = '#'; 1719 buf[3] = '\0'; 1720 if ((ptr = Strstr(backup, buf)) == NULL) { 1721 (void) Strcpy(termcap, backup); 1722 } 1723 else { 1724 i = (int) (ptr - backup + Strlen(buf)); 1725 (void) Strncpy(termcap, backup, (size_t) i); 1726 termcap[i] = '\0'; 1727 (void) Itoa(Val(T_li), buf, 0, 0); 1728 (void) Strcat(termcap, buf); 1729 ptr = Strchr(ptr, ':'); 1730 (void) Strcat(termcap, ptr); 1731 } 1732 /* 1733 * Chop the termcap string at 1024 characters to avoid core-dumps 1734 * in the termcap routines 1735 */ 1736 termcap[1023] = '\0'; 1737 tsetenv(STRTERMCAP, termcap); 1738 } 1739 } 1740 #endif /* KNOWsize */ 1741 1742 ReBufferDisplay(); /* re-make display buffers */ 1743 ClearDisp(); 1744 } 1745