1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970
|
/* $Id: buffer.c,v 1.16 2001/05/25 15:36:52 amura Exp $ */
/*
* Buffer handling.
*/
/*
* $Log: buffer.c,v $
* Revision 1.16 2001/05/25 15:36:52 amura
* now buffers have only one mark (before windows have one mark)
*
* Revision 1.15 2001/05/08 17:52:43 amura
* display buffer size in bufferlist
*
* Revision 1.14 2001/03/02 08:49:04 amura
* now AUTOSAVE feature implemented almost all (except for WIN32
*
* Revision 1.13 2001/02/28 17:06:05 amura
* buffer size to use eread() is more secure
*
* Revision 1.12 2001/02/18 19:26:41 amura
* remove malloc() prototype
*
* Revision 1.11 2001/02/18 17:07:23 amura
* append AUTOSAVE feature (but NOW not work)
*
* Revision 1.10 2001/01/05 14:06:59 amura
* first implementation of Hojo Kanji support
*
* -- snip --
*
* Revision 1.1 1999/05/19 03:47:59 amura
* Initial revision
*
*/
/* 90.01.29 Modified for Ng 1.0 by S.Yoshida */
#include "config.h" /* 90.12.20 by S.Yoshida */
#include "def.h"
#include "kbd.h" /* needed for modes */
#ifdef UNDO
#include "undo.h"
#endif
#ifdef VARIABLE_TAB
int defb_tab = 8;
int cmode_tab = 0;
#endif /* VARIABLE_TAB */
#define GETNUMLEN 6
static BUFFER *makelist pro((void));
static long buffersize pro((BUFFER*));
#ifdef MOVE_BUFFER /* 95.08.29 by M.Suzuki */
/* Move to the next buffer */
nextbuffer(f,n)
{
register BUFFER *bp;
/* Get buffer to use from user */
if ((curbp->b_altb == NULL)
&& ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
return FALSE;
bp = bheadp;
while (bp != NULL) {
if (fncmp(curbp->b_bname, bp->b_bname) == 0){
bp = bp->b_bufp;
break;
}
bp = bp->b_bufp;
}
if ( bp == NULL){
bp = bheadp;
}
/* and put it in current window */
curbp = bp;
return showbuffer(bp, curwp, WFFORCE|WFHARD);
}
/* Move to the previous buffer */
prevbuffer(f,n)
{
register BUFFER *bp,*bp1;
if ((curbp->b_altb == NULL)
&& ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
return FALSE;
bp1 = bp = bheadp;
while (bp != NULL) {
if (fncmp(curbp->b_bname, bp->b_bname) == 0){
if( bp == bp1 ){ /* abnomal found */
while( bp != NULL ){ /* last search */
bp1 = bp;
bp = bp->b_bufp;
}
}
break;
}
bp1 = bp;
bp = bp->b_bufp;
}
/* and put it in current window */
curbp = bp1;
return showbuffer(bp1, curwp, WFFORCE|WFHARD);
}
#endif /* MOVE_BUFFER */
/*
* Attach a buffer to a window. The values of dot and mark come
* from the buffer if the use count is 0. Otherwise, they come
* from some other window. *scratch* is the default alternate
* buffer.
*/
/*ARGSUSED*/
usebuffer(f, n)
{
register BUFFER *bp;
register int s;
char bufn[NBUFN];
/* Get buffer to use from user */
if ((curbp->b_altb == NULL)
&& ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
s=eread("Switch to buffer: ", bufn, sizeof(bufn), EFNEW|EFBUF);
else
s=eread("Switch to buffer: (default %s) ", bufn, sizeof(bufn),
EFNEW|EFBUF, curbp->b_altb->b_bname);
if (s == ABORT) return s;
if (s == FALSE && curbp->b_altb != NULL) bp = curbp->b_altb ;
else if ((bp=bfind(bufn, TRUE)) == NULL) return FALSE;
/* and put it in current window */
curbp = bp;
return showbuffer(bp, curwp, WFFORCE|WFHARD);
}
/*
* pop to buffer asked for by the user.
*/
/*ARGSUSED*/
poptobuffer(f, n)
{
register BUFFER *bp;
register WINDOW *wp;
register int s;
char bufn[NBUFN];
WINDOW *popbuf();
/* Get buffer to use from user */
if ((curbp->b_altb == NULL)
&& ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
s=eread("Switch to buffer in other window: ",
bufn, sizeof(bufn), EFNEW|EFBUF);
else
s=eread("Switch to buffer in other window: (default %s) ",
bufn, sizeof(bufn), EFNEW|EFBUF, curbp->b_altb->b_bname);
if (s == ABORT) return s;
if (s == FALSE && curbp->b_altb != NULL) bp = curbp->b_altb ;
else if ((bp=bfind(bufn, TRUE)) == NULL) return FALSE;
/* and put it in a new window */
if ((wp = popbuf(bp)) == NULL) return FALSE;
curbp = bp;
curwp = wp;
return TRUE;
}
/*
* Dispose of a buffer, by name.
* Ask for the name. Look it up (don't get too
* upset if it isn't there at all!). Clear the buffer (ask
* if the buffer has been changed). Then free the header
* line and the buffer header. Bound to "C-X K".
*/
/*ARGSUSED*/
killbuffer(f, n)
{
register BUFFER *bp;
register BUFFER *bp1;
register BUFFER *bp2;
WINDOW *wp;
register int s;
char bufn[NBUFN];
if ((s=eread("Kill buffer: (default %s) ", bufn, sizeof(bufn),
EFNEW|EFBUF, curbp->b_bname)) == ABORT) return (s);
else if (s == FALSE) bp = curbp;
else if ((bp=bfind(bufn, FALSE)) == NULL) return FALSE;
/* find some other buffer to display. try the alternate buffer,
* then the first different buffer in the buffer list. if
* there's only one buffer, create buffer *scratch* and make
* it the alternate buffer. return if *scratch* is only buffer
*/
#ifdef BUGFIX /* 90.02.22 by S.Yoshida */
if ((bp1 = bp->b_altb) == NULL || bp1 == bp) {
#else /* ORIGINAL */
if ((bp1 = bp->b_altb) == NULL) {
#endif /* BUGFIX */
bp1 = (bp == bheadp) ? bp->b_bufp : bheadp;
if (bp1 == NULL) {
/* only one buffer. see if it's *scratch* */
if (bp == bfind("*scratch*",FALSE))
return FALSE;
/* create *scratch* for alternate buffer */
if ((bp1 = bfind("*scratch*",TRUE)) == NULL)
return FALSE;
}
}
if (bp->b_fname == NULL) {
/* Do not ask for saving
if the buffer is not associated with a file.
by Tillanosoft */
bp->b_flag &= ~BFCHG;
}
if (bclear(bp) != TRUE) return FALSE;
for (wp = wheadp; bp->b_nwnd > 0; wp = wp->w_wndp) {
if (wp->w_bufp == bp) {
bp2 = bp1->b_altb; /* save alternate buffer */
if(showbuffer(bp1, wp, WFMODE|WFFORCE|WFHARD) != FALSE)
bp1->b_altb = bp2;
else bp1 = bp2;
}
}
if (bp == curbp) curbp = bp1;
free((char *) bp->b_linep); /* Release header line. */
bp2 = NULL; /* Find the header. */
bp1 = bheadp;
while (bp1 != bp) {
if (bp1->b_altb == bp)
bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
bp2 = bp1;
bp1 = bp1->b_bufp;
}
bp1 = bp1->b_bufp; /* Next one in chain. */
if (bp2 == NULL) /* Unlink it. */
bheadp = bp1;
else
bp2->b_bufp = bp1;
while (bp1 != NULL) { /* Finish with altb's */
if (bp1->b_altb == bp)
bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
bp1 = bp1->b_bufp;
}
if (bp->b_fname != NULL) /* Release filename block */
free(bp->b_fname);
#ifdef EXTD_DIR
if (bp->b_cwd != NULL) /* Release pathname block */
free(bp->b_cwd);
#endif
free(bp->b_bname); /* Release name block */
#ifdef UNDO
undo_clean(bp); /* Release undo data */
#endif
free((char *) bp); /* Release buffer block */
return TRUE;
}
/*
* Save some buffers - just call anycb with the arg flag.
*/
/*ARGSUSED*/
savebuffers(f, n)
{
if (anycb(f) == ABORT) return ABORT;
return TRUE;
}
/*
* Display the buffer list. This is done
* in two parts. The "makelist" routine figures out
* the text, and puts it in a buffer. "popbuf"
* then pops the data onto the screen. Bound to
* "C-X C-B".
*/
/*ARGSUSED*/
listbuffers(f, n)
{
register BUFFER *bp;
register WINDOW *wp;
BUFFER *makelist();
WINDOW *popbuf();
if ((bp=makelist()) == NULL || (wp=popbuf(bp)) == NULL)
return FALSE;
wp->w_dotp = bp->b_dotp; /* fix up if window already on screen */
wp->w_doto = bp->b_doto;
#ifdef BUFFER_MODE
bp->b_modes[0] = name_mode("Buffer Menu");
if (bp->b_modes[0] == NULL) {
bp->b_modes[0] = &map_table[0];
ewprintf("Could not find \"Buffer Menu\" mode");
}
else {
bp->b_nmodes = 0;
}
#endif
return TRUE;
}
/*
* This routine rebuilds the text for the
* list buffers command. Return TRUE if
* everything works. Return FALSE if there
* is an error (if there is no memory).
*/
BUFFER *
makelist() {
register char *cp1;
register char *cp2;
register int c;
register BUFFER *bp;
LINE *lp;
BUFFER *blp;
char b[6+1];
char line[4+NBUFN+7+NFILEN+4];
#ifdef HANKANA
int nhankana;
#endif
if ((blp = bfind("*Buffer List*", TRUE)) == NULL) return NULL;
if (bclear(blp) != TRUE) return NULL;
#ifdef AUTOSAVE /* 96.12.24 by M.Suzuki */
blp->b_flag &= ~(BFCHG|BFACHG); /* Blow away old. */
#else
blp->b_flag &= ~BFCHG; /* Blow away old. */
#endif /* AUTOSAVE */
(VOID) strcpy(line, " MR Buffer");
cp1 = line + 10;
while(cp1 < line + 4 + NBUFN + 1) *cp1++ = ' ';
(VOID) strcpy(cp1, "Size File");
if (addline(blp, line) == FALSE) return NULL;
(VOID) strcpy(line, " -- ------");
cp1 = line + 10;
while(cp1 < line + 4 + NBUFN + 1) *cp1++ = ' ';
(VOID) strcpy(cp1, "---- ----");
if (addline(blp, line) == FALSE) return NULL;
bp = bheadp; /* For all buffers */
while (bp != NULL) {
sprintf(line,"%c%c%c %-30.30s %7ld %s",
(bp == curbp) ? '.' : ' ',
(bp->b_flag & BFCHG) ? '*' : ' ',
#ifdef READONLY /* 91.01.05 by S.Yoshida */
(bp->b_flag & BFRONLY) ? '%' : ' ',
#else
' ',
#endif
bp->b_bname, buffersize(bp),
(bp->b_fname != NULL) ? bp->b_fname : "" );
if (addline(blp, line) == FALSE)
return NULL;
bp = bp->b_bufp;
}
blp->b_dotp = lforw(blp->b_linep); /* put dot at beginning of buffer */
blp->b_doto = 0;
#ifdef READONLY /* 91.02.06 by N.Kamei */
blp->b_flag |= BFRONLY;
#endif /* READONLY */
return blp; /* All done */
}
/*
* Calculate buffer size
*/
static long
buffersize(bp)
BUFFER *bp;
{
long size = 0;
LINE *line;
line = bp->b_linep;
line = lforw(line);
while (line != bp->b_linep) {
size += llength(line);
size++;
line = lforw(line);
}
return size;
}
/*
* The argument "text" points to
* a string. Append this line to the
* buffer. Handcraft the EOL
* on the end. Return TRUE if it worked and
* FALSE if you ran out of room.
*/
addline(bp, text) register BUFFER *bp; char *text; {
register LINE *lp;
register int i;
register int ntext;
ntext = strlen(text);
if ((lp=lalloc(ntext)) == NULL)
return FALSE;
for (i=0; i<ntext; ++i)
lputc(lp, i, text[i]);
bp->b_linep->l_bp->l_fp = lp; /* Hook onto the end */
lp->l_bp = bp->b_linep->l_bp;
bp->b_linep->l_bp = lp;
lp->l_fp = bp->b_linep;
#ifdef CANTHAPPEN
if (bp->b_dotp == bp->b_linep) /* If "." is at the end */
bp->b_dotp = lp; /* move it to new line */
if (bp->b_markp == bp->b_linep) /* ditto for mark */
bp->b_markp = lp;
#endif
return TRUE;
}
/*
* Look through the list of buffers, giving the user
* a chance to save them. Return TRUE if there are
* any changed buffers afterwards. Buffers that don't
* have an associated file don't count. Return FALSE
* if there are no changed buffers.
*/
anycb(f) {
register BUFFER *bp;
register int s = FALSE, save = FALSE;
char *prompt;
VOID upmodes();
for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
if (bp->b_fname != NULL
&& (bp->b_flag&BFCHG) != 0) {
prompt = alloca(10 + strlen(bp->b_fname) + 1);
if (prompt != NULL) {
(VOID) strcpy(prompt, "Save file ");
(VOID) strcpy(prompt + 10, bp->b_fname);
}
else {
prompt = "Save file <Somethings>";
}
if ((f == TRUE || (save = eyorn(prompt)) == TRUE)
&& buffsave(bp) == TRUE) {
#ifdef AUTOSAVE /* 96.12.24 by M.Suzuki */
bp->b_flag &= ~(BFCHG|BFACHG);
#else
bp->b_flag &= ~BFCHG;
#endif /* AUTOSAVE */
upmodes(bp);
} else s = TRUE;
if (save == ABORT) return (save);
save = TRUE;
}
}
if (save == FALSE /* && kbdmop == NULL */ ) /* experimental */
ewprintf("(No files need saving)");
return s;
}
/*
* Search for a buffer, by name.
* If not found, and the "cflag" is TRUE,
* create a buffer and put it in the list of
* all buffers. Return pointer to the BUFFER
* block for the buffer.
*/
BUFFER *
bfind(bname, cflag) register char *bname; {
register BUFFER *bp;
register LINE *lp;
int i;
extern int defb_nmodes;
extern MAPS *defb_modes[PBMODES];
extern int defb_flag;
extern int defb_tab;
bp = bheadp;
while (bp != NULL) {
if (fncmp(bname, bp->b_bname) == 0)
return bp;
bp = bp->b_bufp;
}
if (cflag!=TRUE) return NULL;
/*NOSTRICT*/
if ((bp=(BUFFER *)malloc(sizeof(BUFFER))) == NULL) {
ewprintf("Can't get %d bytes", sizeof(BUFFER));
return NULL;
}
if ((bp->b_bname=malloc((unsigned)(strlen(bname)+1))) == NULL) {
ewprintf("Can't get %d bytes", strlen(bname)+1);
free((char *) bp);
return NULL;
}
if ((lp = lalloc(0)) == NULL) {
free(bp->b_bname);
free((char *) bp);
return NULL;
}
#ifdef UNDO
bzero(bp->b_ustack, sizeof(UNDO_DATA *)*(UNDOSIZE+1));
undo_reset(bp);
#endif
bp->b_altb = bp->b_bufp = NULL;
bp->b_dotp = lp;
bp->b_doto = 0;
bp->b_markp = NULL;
bp->b_marko = 0;
bp->b_flag = defb_flag;
bp->b_nwnd = 0;
bp->b_linep = lp;
bp->b_nmodes = defb_nmodes;
#ifdef KANJI /* 90.01.29 by S.Yoshida */
bp->b_kfio = NIL; /* changed by amura */
/* set in fileio.c */
#endif /* KANJI */
#ifdef VARIABLE_TAB
bp->b_tabwidth = defb_tab;
#endif /* VARIABLE_TAB */
i = 0;
do {
bp->b_modes[i] = defb_modes[i];
} while(i++ < defb_nmodes);
bp->b_fname = NULL;
#ifdef EXTD_DIR
bp->b_cwd = NULL;
if (curbp) {
if (curbp->b_cwd == NULL) {
extern void storecwd pro((BUFFER *bp));
storecwd(curbp);
}
if (curbp->b_cwd != NULL &&
(bp->b_cwd=malloc(strlen(curbp->b_cwd)+1)) != NULL)
strcpy(bp->b_cwd, curbp->b_cwd);
}
#endif
(VOID) strcpy(bp->b_bname, bname);
lp->l_fp = lp;
lp->l_bp = lp;
bp->b_bufp = bheadp;
bheadp = bp;
return bp;
}
/*
* This routine blows away all of the text
* in a buffer. If the buffer is marked as changed
* then we ask if it is ok to blow it away; this is
* to save the user the grief of losing text. The
* window chain is nearly always wrong if this gets
* called; the caller must arrange for the updates
* that are required. Return TRUE if everything
* looks good.
*/
bclear(bp) register BUFFER *bp; {
register LINE *lp;
register int s;
VOID lfree();
if ((bp->b_flag&BFCHG) != 0 /* Changed. */
&& (s=eyesno("Buffer modified; kill anyway")) != TRUE)
return (s);
#ifdef AUTOSAVE /* 96.12.25 by M.Suzuki */
if (bp->b_bname && bp->b_bname[0] != '*' ){/* file buffer only */
del_autosave_file(bp->b_fname);
}
bp->b_flag &= ~(BFCHG|BFACHG); /* Not changed */
#else
bp->b_flag &= ~BFCHG; /* Not changed */
#endif /* AUTOSAVE */
while ((lp=lforw(bp->b_linep)) != bp->b_linep)
lfree(lp);
bp->b_dotp = bp->b_linep; /* Fix "." */
bp->b_doto = 0;
bp->b_markp = NULL; /* Invalidate "mark" */
bp->b_marko = 0;
return TRUE;
}
/*
* Display the given buffer in the given window. Flags indicated
* action on redisplay.
*/
showbuffer(bp, wp, flags) register BUFFER *bp; register WINDOW *wp; {
register BUFFER *obp;
WINDOW *owp;
if (wp->w_bufp == bp) { /* Easy case! */
wp->w_flag |= flags;
return TRUE;
}
/* First, dettach the old buffer from the window */
if ((bp->b_altb = obp = wp->w_bufp) != NULL) {
if (--obp->b_nwnd == 0) {
obp->b_dotp = wp->w_dotp;
obp->b_doto = wp->w_doto;
}
}
/* Now, attach the new buffer to the window */
wp->w_bufp = bp;
if (bp->b_nwnd++ == 0) { /* First use. */
wp->w_dotp = bp->b_dotp;
wp->w_doto = bp->b_doto;
} else
/* already on screen, steal values from other window */
#ifdef BUGFIX /* ? 90.12.08 Sawayanagi Yosirou */
for (owp = wheadp; owp != NULL; owp = owp->w_wndp)
if (owp->w_bufp == bp && owp != wp) {
#else /* ORIGINAL */
for (owp = wheadp; owp != NULL; owp = wp->w_wndp)
if (wp->w_bufp == bp && owp != wp) {
#endif /* BUGFIX */
wp->w_dotp = owp->w_dotp;
wp->w_doto = owp->w_doto;
break;
}
wp->w_flag |= WFMODE|flags;
return TRUE;
}
/*
* Pop the buffer we got passed onto the screen.
* Returns a status.
*/
WINDOW *
popbuf(bp) register BUFFER *bp; {
register WINDOW *wp;
if (bp->b_nwnd == 0) { /* Not on screen yet. */
if ((wp=wpopup()) == NULL) return NULL;
} else
for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
if (wp->w_bufp == bp) {
wp->w_flag |= WFHARD|WFFORCE;
return wp ;
}
if (showbuffer(bp, wp, WFHARD) != TRUE) return NULL;
return wp;
}
/*
* Insert another buffer at dot. Very useful.
*/
/*ARGSUSED*/
bufferinsert(f, n)
{
register BUFFER *bp;
register LINE *clp;
register int clo;
register int nline;
int s;
char bufn[NBUFN];
#ifdef READONLY /* 91.01.05 by S.Yoshida */
if (curbp->b_flag & BFRONLY) { /* If this buffer is read-only, */
warnreadonly(); /* do only displaying warning. */
return TRUE;
}
#endif /* READONLY */
/* Get buffer to use from user */
if (curbp->b_altb != NULL)
s=eread("Insert buffer: (default %s) ", bufn, sizeof(bufn),
#ifdef BUGFIX /* 91.01.04 by S.Yoshida */
EFNEW|EFBUF, curbp->b_altb->b_bname);
else
s=eread("Insert buffer: ", bufn, sizeof(bufn), EFNEW|EFBUF);
#else /* ORIGINAL */
EFNEW|EFBUF, &(curbp->b_altb->b_bname),
(char *) NULL) ;
else
s=eread("Insert buffer: ", bufn, sizeof(bufn), EFNEW|EFBUF,
(char *) NULL) ;
#endif /* BUGFIX */
if (s == ABORT) return (s);
if (s == FALSE && curbp->b_altb != NULL) bp = curbp->b_altb;
else if ((bp=bfind(bufn, FALSE)) == NULL) return FALSE;
if (bp==curbp) {
ewprintf("Cannot insert buffer into self");
return FALSE;
}
/* insert the buffer */
nline = 0;
clp = lforw(bp->b_linep);
for(;;) {
for (clo = 0; clo < llength(clp); clo++)
if (linsert(1, lgetc(clp, clo)) == FALSE)
return FALSE;
if((clp = lforw(clp)) == bp->b_linep) break;
if (newline(FFRAND, 1) == FALSE) /* fake newline */
return FALSE;
nline++;
}
if (nline == 1) ewprintf("[Inserted 1 line]");
else ewprintf("[Inserted %d lines]", nline);
clp = curwp->w_linep; /* cosmetic adjustment */
if (curwp->w_dotp == clp) { /* for offscreen insert */
while (nline > 0 && lback(clp)!=curbp->b_linep) {
clp = lback(clp);
nline --;
}
curwp->w_linep = clp; /* adjust framing. */
curwp->w_lines = 0;
curwp->w_flag |= WFHARD;
}
return (TRUE);
}
/*
* Turn off the dirty bit on this buffer.
*/
/*ARGSUSED*/
notmodified(f, n)
{
register WINDOW *wp;
#ifdef AUTOSAVE /* 96.12.24 by M.Suzuki */
curbp->b_flag &= ~(BFCHG|BFACHG);
#else
curbp->b_flag &= ~BFCHG;
#endif /* AUTOSAVE */
wp = wheadp; /* Update mode lines. */
while (wp != NULL) {
if (wp->w_bufp == curbp)
wp->w_flag |= WFMODE;
wp = wp->w_wndp;
}
ewprintf("Modification-flag cleared");
return TRUE;
}
#ifdef READONLY /* 91.01.05 by S.Yoshida */
/*
* Toggle the read-only bit on this buffer.
*/
/*ARGSUSED*/
togglereadonly(f, n)
{
register WINDOW *wp;
curbp->b_flag ^= BFRONLY; /* Toggle read-only bit. */
wp = wheadp; /* Update mode lines. */
while (wp != NULL) {
if (wp->w_bufp == curbp)
wp->w_flag |= WFMODE;
wp = wp->w_wndp;
}
return TRUE;
}
/*
* Display warning message.
*/
VOID
warnreadonly()
{
ewprintf("Buffer is read-only: #<buffer %s>", curbp->b_bname);
ttbeep(); /* 91.02.06 Add beep. by S.Yoshida */
}
#endif /* READONLY */
#ifndef NO_HELP
/*
* Popbuf and set all windows to top of buffer. Currently only used by
* help functions.
*/
popbuftop(bp)
register BUFFER *bp;
{
register WINDOW *wp;
bp->b_dotp = lforw(bp->b_linep);
bp->b_doto = 0;
if(bp->b_nwnd != 0) {
for(wp = wheadp; wp!=NULL; wp = wp->w_wndp)
if(wp->w_bufp == bp) {
wp->w_dotp = bp->b_dotp;
wp->w_doto = 0;
wp->w_flag |= WFHARD;
}
}
return popbuf(bp) != NULL;
}
#endif
#if defined(CMODE)||defined(VARIABLE_TAB)||defined(AUTOSAVE)
#define USING_GETNUM 1
#endif
#ifdef USING_GETNUM
getnum(prompt, num)
char *prompt;
int *num;
{
char numstr[GETNUMLEN];
if (ereply("%s : ", numstr, GETNUMLEN, prompt) == FALSE)
return (FALSE);
*num = atoi(numstr);
return (TRUE);
}
#undef USING_GETNUM
#endif /* USING_GETNUM */
#ifdef VARIABLE_TAB
set_default_tabwidth(f, n)
int f, n;
{
if ((f & FFARG) == 0)
{
if (getnum("default-tab-width", &n) == FALSE)
return (FALSE);
}
if (n>64 || n<=2)
return (FALSE);
defb_tab = n;
return (TRUE);
}
set_tabwidth(f, n)
int f, n;
{
extern int refresh();
if ((f & FFARG) == 0)
{
if (getnum("tab-width", &n) == FALSE)
return (FALSE);
}
if (n == 0)
n = defb_tab;
else if (n>64 || n<=2)
return (FALSE);
curbp->b_tabwidth = n;
if (f >= 0)
refresh(0, 0);
return (TRUE);
}
set_cmode_tabwidth(f, n)
int f, n;
{
if ((f & FFARG) == 0)
{
if (getnum("c-tab-width", &n) == FALSE)
return (FALSE);
}
if (n>64 || n<=2)
return (FALSE);
cmode_tab = n;
return (TRUE);
}
#endif /* VARIABLE_TAB */
#ifdef BUFFER_MODE
#define BUFNAME_START_COL 4
static int
b_makename(lp, buf, len)
LINE *lp;
char *buf;
int len;
{
if (BUFNAME_START_COL < llength(lp)) {
char *p = lp->l_text + BUFNAME_START_COL, *q = buf, *ep = p + NBUFN;
while (*ep == ' ') {
ep--;
}
ep++;
while (p < ep) {
*q++ = *p++;
}
*q = '\0';
return TRUE;
}
return FALSE;
}
/*ARGSUSED*/
b_thiswin(f, n)
int f, n;
{
char bufname[NBUFN];
register BUFFER *bp;
LINE *lp = curwp->w_dotp;
int s;
s = b_makename(lp, bufname, NBUFN);
if (s) {
bp = bfind(bufname, FALSE);
if (bp != NULL) {
/* put it in current window */
curbp = bp;
return showbuffer(bp, curwp, WFFORCE|WFHARD);
}
else {
ewprintf("No buffer named \"%s\"", bufname);
}
}
return FALSE;
}
/*ARGSUSED*/
static
b_delundel(ch)
int ch;
{
LINE *lp = curwp->w_dotp;
if (lback(lp) != curbp->b_linep &&
lback(lback(lp)) != curbp->b_linep) {
if (llength(lp) > 0) {
lputc(lp, 0, ch);
}
if (lforw(lp) != curbp->b_linep) {
curwp->w_dotp = lforw(lp);
}
curwp->w_flag |= WFEDIT | WFMOVE;
curwp->w_doto = 0;
return TRUE;
}
return FALSE;
}
/*ARGSUSED*/
b_del(f, n)
int f, n;
{
return b_delundel((int)'D');
}
/*ARGSUSED*/
b_undel(f, n)
int f, n;
{
return b_delundel((int)' ');
}
/*ARGSUSED*/
b_expunge(f, n)
int f, n;
{
char bufname[NBUFN];
register LINE *lp, *nlp;
VOID lfree();
for (lp = lforw(curbp->b_linep) ; lp != curbp->b_linep ; lp = nlp) {
nlp = lforw(lp);
if (0 < llength(lp) && lgetc(lp, 0) == 'D') {
switch (b_makename(lp, bufname, NBUFN)) {
case FALSE:
break;
case TRUE:
eargset(bufname);
if (killbuffer(f, n)) {
lfree(lp);
curwp->w_flag |= WFHARD;
}
break;
}
}
}
return TRUE;
}
#endif /* BUFFER_MODE */
|