Annotation of src/usr.bin/mg/buffer.c, Revision 1.28
1.28 ! vincent 1: /* $OpenBSD: buffer.c,v 1.27 2002/03/16 04:17:36 vincent Exp $ */
1.5 niklas 2:
1.1 deraadt 3: /*
4: * Buffer handling.
5: */
1.4 millert 6:
7: #include "def.h"
8: #include "kbd.h" /* needed for modes */
1.8 art 9: #include <stdarg.h>
1.1 deraadt 10:
1.22 millert 11: static BUFFER *makelist(void);
1.1 deraadt 12:
1.27 vincent 13: int
14: togglereadonly(void)
15: {
16: if (!(curbp->b_flag & BFREADONLY)) {
17: curbp->b_flag |= BFREADONLY;
18: ewprintf("Now readonly");
19: } else {
20: curbp->b_flag &=~ BFREADONLY;
21: if (curbp->b_flag & BFCHG)
22: ewprintf("Warning: Buffer was modified");
23: }
24: curwp->w_flag |= WFMODE;
25:
26: return(1);
27: }
28:
1.1 deraadt 29: /*
30: * Attach a buffer to a window. The values of dot and mark come
31: * from the buffer if the use count is 0. Otherwise, they come
32: * from some other window. *scratch* is the default alternate
33: * buffer.
34: */
1.3 millert 35: /* ARGSUSED */
36: int
1.26 vincent 37: usebuffer(int f, int n)
1.1 deraadt 38: {
1.3 millert 39: BUFFER *bp;
40: int s;
41: char bufn[NBUFN];
1.1 deraadt 42:
43: /* Get buffer to use from user */
1.21 deraadt 44: if ((curbp->b_altb == NULL) &&
45: ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
1.3 millert 46: s = eread("Switch to buffer: ", bufn, NBUFN, EFNEW | EFBUF);
1.1 deraadt 47: else
1.3 millert 48: s = eread("Switch to buffer: (default %s) ", bufn, NBUFN,
49: EFNEW | EFBUF, curbp->b_altb->b_bname);
1.1 deraadt 50:
1.3 millert 51: if (s == ABORT)
52: return s;
53: if (s == FALSE && curbp->b_altb != NULL)
54: bp = curbp->b_altb;
55: else if ((bp = bfind(bufn, TRUE)) == NULL)
56: return FALSE;
1.1 deraadt 57:
58: /* and put it in current window */
59: curbp = bp;
1.3 millert 60: return showbuffer(bp, curwp, WFFORCE | WFHARD);
1.1 deraadt 61: }
62:
63: /*
64: * pop to buffer asked for by the user.
65: */
1.3 millert 66: /* ARGSUSED */
67: int
1.26 vincent 68: poptobuffer(int f, int n)
1.1 deraadt 69: {
1.3 millert 70: BUFFER *bp;
71: MGWIN *wp;
72: int s;
73: char bufn[NBUFN];
1.1 deraadt 74:
75: /* Get buffer to use from user */
1.21 deraadt 76: if ((curbp->b_altb == NULL) &&
77: ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
1.3 millert 78: s = eread("Switch to buffer in other window: ", bufn, NBUFN,
79: EFNEW | EFBUF);
1.1 deraadt 80: else
1.3 millert 81: s = eread("Switch to buffer in other window: (default %s) ",
82: bufn, NBUFN, EFNEW | EFBUF, curbp->b_altb->b_bname);
83: if (s == ABORT)
84: return s;
85: if (s == FALSE && curbp->b_altb != NULL)
86: bp = curbp->b_altb;
87: else if ((bp = bfind(bufn, TRUE)) == NULL)
88: return FALSE;
1.1 deraadt 89:
90: /* and put it in a new window */
1.3 millert 91: if ((wp = popbuf(bp)) == NULL)
92: return FALSE;
1.1 deraadt 93: curbp = bp;
94: curwp = wp;
95: return TRUE;
96: }
97:
98: /*
99: * Dispose of a buffer, by name.
100: * Ask for the name. Look it up (don't get too
101: * upset if it isn't there at all!). Clear the buffer (ask
102: * if the buffer has been changed). Then free the header
103: * line and the buffer header. Bound to "C-X K".
104: */
1.3 millert 105: /* ARGSUSED */
106: int
1.26 vincent 107: killbuffer(int f, int n)
1.1 deraadt 108: {
1.3 millert 109: BUFFER *bp;
110: BUFFER *bp1;
111: BUFFER *bp2;
112: MGWIN *wp;
113: int s;
114: char bufn[NBUFN];
1.25 vincent 115: struct undo_rec *rec, *next;
1.3 millert 116:
117: if ((s = eread("Kill buffer: (default %s) ", bufn, NBUFN, EFNEW | EFBUF,
1.21 deraadt 118: curbp->b_bname)) == ABORT)
1.3 millert 119: return (s);
120: else if (s == FALSE)
121: bp = curbp;
122: else if ((bp = bfind(bufn, FALSE)) == NULL)
123: return FALSE;
124:
125: /*
126: * Find some other buffer to display. try the alternate buffer,
127: * then the first different buffer in the buffer list. If there's
128: * only one buffer, create buffer *scratch* and make it the alternate
129: * buffer. Return if *scratch* is only buffer...
1.1 deraadt 130: */
131: if ((bp1 = bp->b_altb) == NULL) {
132: bp1 = (bp == bheadp) ? bp->b_bufp : bheadp;
133: if (bp1 == NULL) {
134: /* only one buffer. see if it's *scratch* */
1.3 millert 135: if (bp == bfind("*scratch*", FALSE))
1.1 deraadt 136: return FALSE;
137: /* create *scratch* for alternate buffer */
1.3 millert 138: if ((bp1 = bfind("*scratch*", TRUE)) == NULL)
1.1 deraadt 139: return FALSE;
140: }
141: }
1.3 millert 142: if (bclear(bp) != TRUE)
143: return TRUE;
1.1 deraadt 144: for (wp = wheadp; bp->b_nwnd > 0; wp = wp->w_wndp) {
1.3 millert 145: if (wp->w_bufp == bp) {
146: bp2 = bp1->b_altb; /* save alternate buffer */
147: if (showbuffer(bp1, wp, WFMODE | WFFORCE | WFHARD))
148: bp1->b_altb = bp2;
149: else
150: bp1 = bp2;
151: }
152: }
153: if (bp == curbp)
154: curbp = bp1;
155: free(bp->b_linep); /* Release header line. */
156: bp2 = NULL; /* Find the header. */
1.1 deraadt 157: bp1 = bheadp;
158: while (bp1 != bp) {
159: if (bp1->b_altb == bp)
160: bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
161: bp2 = bp1;
162: bp1 = bp1->b_bufp;
163: }
1.3 millert 164: bp1 = bp1->b_bufp; /* Next one in chain. */
165: if (bp2 == NULL) /* Unlink it. */
1.1 deraadt 166: bheadp = bp1;
167: else
168: bp2->b_bufp = bp1;
1.3 millert 169: while (bp1 != NULL) { /* Finish with altb's */
1.1 deraadt 170: if (bp1->b_altb == bp)
171: bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
172: bp1 = bp1->b_bufp;
173: }
1.25 vincent 174: rec = LIST_FIRST(&bp->b_undo);
175: while (rec != NULL) {
176: next = LIST_NEXT(rec, next);
1.24 vincent 177: free_undo_record(rec);
1.25 vincent 178: rec = next;
1.24 vincent 179: }
1.26 vincent 180: free((char *)bp->b_bname); /* Release name block */
1.3 millert 181: free(bp); /* Release buffer block */
1.1 deraadt 182: return TRUE;
183: }
184:
185: /*
186: * Save some buffers - just call anycb with the arg flag.
187: */
1.3 millert 188: /* ARGSUSED */
189: int
1.26 vincent 190: savebuffers(int f, int n)
1.1 deraadt 191: {
1.3 millert 192: if (anycb(f) == ABORT)
193: return ABORT;
1.1 deraadt 194: return TRUE;
195: }
196:
197: /*
1.19 art 198: * Listing buffers.
199: */
200: static int listbuf_ncol;
201:
202: static int listbuf_goto_buffer(int f, int n);
203:
204: static PF listbuf_pf[] = {
205: listbuf_goto_buffer,
206: };
207:
208: static struct KEYMAPE (1 + IMAPEXT) listbufmap = {
209: 1,
210: 1 + IMAPEXT,
211: rescan,
212: {
213: { CCHR('M'), CCHR('M'), listbuf_pf, NULL },
214: }
215: };
216:
217: /*
1.1 deraadt 218: * Display the buffer list. This is done
219: * in two parts. The "makelist" routine figures out
220: * the text, and puts it in a buffer. "popbuf"
221: * then pops the data onto the screen. Bound to
222: * "C-X C-B".
223: */
1.3 millert 224: /* ARGSUSED */
225: int
1.26 vincent 226: listbuffers(int f, int n)
1.1 deraadt 227: {
1.19 art 228: static int initialized = 0;
1.3 millert 229: BUFFER *bp;
230: MGWIN *wp;
1.1 deraadt 231:
1.19 art 232: if (!initialized) {
233: maps_add((KEYMAP *)&listbufmap, "listbufmap");
234: initialized = 1;
235: }
236:
1.3 millert 237: if ((bp = makelist()) == NULL || (wp = popbuf(bp)) == NULL)
1.1 deraadt 238: return FALSE;
1.3 millert 239: wp->w_dotp = bp->b_dotp;/* fix up if window already on screen */
1.1 deraadt 240: wp->w_doto = bp->b_doto;
1.19 art 241: bp->b_modes[0] = name_mode("fundamental");
242: bp->b_modes[1] = name_mode("listbufmap");
243: bp->b_nmodes = 1;
244:
1.1 deraadt 245: return TRUE;
246: }
247:
248: /*
249: * This routine rebuilds the text for the
250: * list buffers command. Return TRUE if
251: * everything works. Return FALSE if there
252: * is an error (if there is no memory).
253: */
1.3 millert 254: static BUFFER *
1.26 vincent 255: makelist(void)
1.3 millert 256: {
1.11 art 257: int w = ncol / 2;
258: BUFFER *bp, *blp;
1.3 millert 259: LINE *lp;
260:
1.19 art 261:
1.3 millert 262: if ((blp = bfind("*Buffer List*", TRUE)) == NULL)
263: return NULL;
264: if (bclear(blp) != TRUE)
265: return NULL;
266: blp->b_flag &= ~BFCHG; /* Blow away old. */
1.28 ! vincent 267: blp->b_flag |= BFREADONLY;
1.1 deraadt 268:
1.19 art 269: listbuf_ncol = ncol; /* cache ncol for listbuf_goto_buffer */
270:
1.11 art 271: if (addlinef(blp, "%-*s%s", w, " MR Buffer", "Size File") == FALSE ||
272: addlinef(blp, "%-*s%s", w, " -- ------", "---- ----") == FALSE)
1.3 millert 273: return NULL;
1.11 art 274:
275: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
276: RSIZE nbytes;
277:
1.3 millert 278: nbytes = 0; /* Count bytes in buf. */
1.1 deraadt 279: if (bp != blp) {
280: lp = lforw(bp->b_linep);
281: while (lp != bp->b_linep) {
1.3 millert 282: nbytes += llength(lp) + 1;
1.1 deraadt 283: lp = lforw(lp);
284: }
1.3 millert 285: if (nbytes)
286: nbytes--; /* no bonus newline */
1.1 deraadt 287: }
1.11 art 288:
1.19 art 289: if (addlinef(blp, "%c%c%c %-*.*s%c%-6d %-*s",
1.11 art 290: (bp == curbp) ? '.' : ' ', /* current buffer ? */
291: ((bp->b_flag & BFCHG) != 0) ? '*' : ' ', /* changed ? */
1.27 vincent 292: ((bp->b_flag & BFREADONLY) != 0) ? ' ' : '*',
1.19 art 293: w - 5, /* four chars already written */
294: w - 5, /* four chars already written */
1.11 art 295: bp->b_bname, /* buffer name */
1.19 art 296: strlen(bp->b_bname) < w - 5 ? ' ' : '$', /* truncated? */
1.11 art 297: nbytes, /* buffer size */
298: w - 7, /* seven chars already written */
299: bp->b_fname) == FALSE)
1.1 deraadt 300: return NULL;
301: }
1.3 millert 302: blp->b_dotp = lforw(blp->b_linep); /* put dot at beginning of
303: * buffer */
1.1 deraadt 304: blp->b_doto = 0;
1.3 millert 305: return blp; /* All done */
1.19 art 306: }
307:
308: static int
309: listbuf_goto_buffer(int f, int n)
310: {
311: BUFFER *bp;
312: MGWIN *wp;
313: char *line;
314: int i;
315:
316: if (curwp->w_dotp->l_text[listbuf_ncol/2 - 1] == '$') {
317: ewprintf("buffer name truncated");
318: return FALSE;
319: }
320:
321: if ((line = malloc(listbuf_ncol/2)) == NULL)
322: return FALSE;
323:
324: memcpy(line, curwp->w_dotp->l_text + 4, listbuf_ncol/2 - 5);
325: for (i = listbuf_ncol/2 - 6; i > 0; i--) {
326: if (line[i] != ' ') {
327: line[i + 1] = '\0';
328: break;
329: }
330: }
331: if (i == 0) {
332: return FALSE;
333: }
334:
335: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
336: if (strcmp(bp->b_bname, line) == 0)
337: break;
338: }
339: if (bp == NULL) {
340: return FALSE;
341: }
342: if ((wp = popbuf(bp)) == NULL)
343: return FALSE;
344: curbp = bp;
345: curwp = wp;
346:
347: return TRUE;
1.1 deraadt 348: }
349:
350: /*
1.8 art 351: * The argument "text" points to a format string. Append this line to the
1.3 millert 352: * buffer. Handcraft the EOL on the end. Return TRUE if it worked and
1.1 deraadt 353: * FALSE if you ran out of room.
354: */
1.3 millert 355: int
1.8 art 356: addlinef(BUFFER *bp, char *fmt, ...)
1.3 millert 357: {
1.8 art 358: va_list ap;
1.3 millert 359: LINE *lp;
360: int ntext;
1.8 art 361: char dummy[1];
1.1 deraadt 362:
1.8 art 363: va_start(ap, fmt);
1.23 dhartmei 364: ntext = vsnprintf(dummy, 1, fmt, ap);
1.16 deraadt 365: if (ntext == -1) {
366: va_end(ap);
367: return FALSE;
368: }
1.23 dhartmei 369: ntext++;
1.8 art 370: if ((lp = lalloc(ntext)) == NULL) {
371: va_end(ap);
1.1 deraadt 372: return FALSE;
1.8 art 373: }
1.23 dhartmei 374: va_end(ap);
375: va_start(ap, fmt);
1.8 art 376: vsnprintf(lp->l_text, ntext, fmt, ap);
1.10 art 377: lp->l_used--;
1.8 art 378: va_end(ap);
379:
1.3 millert 380: bp->b_linep->l_bp->l_fp = lp; /* Hook onto the end */
1.1 deraadt 381: lp->l_bp = bp->b_linep->l_bp;
382: bp->b_linep->l_bp = lp;
383: lp->l_fp = bp->b_linep;
1.8 art 384:
1.1 deraadt 385: return TRUE;
386: }
387:
388: /*
1.3 millert 389: * Look through the list of buffers, giving the user a chance to save them.
390: * Return TRUE if there are any changed buffers afterwards. Buffers that
391: * don't have an associated file don't count. Return FALSE if there are
392: * no changed buffers.
393: */
394: int
1.26 vincent 395: anycb(int f)
1.3 millert 396: {
397: BUFFER *bp;
398: int s = FALSE, save = FALSE;
399: char prompt[NFILEN + 11];
1.1 deraadt 400:
401: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.21 deraadt 402: if (bp->b_fname != NULL && *(bp->b_fname) != '\0' &&
403: (bp->b_flag & BFCHG) != 0) {
1.17 deraadt 404: snprintf(prompt, sizeof prompt, "Save file %s",
405: bp->b_fname);
1.21 deraadt 406: if ((f == TRUE || (save = eyorn(prompt)) == TRUE) &&
407: buffsave(bp) == TRUE) {
1.1 deraadt 408: bp->b_flag &= ~BFCHG;
409: upmodes(bp);
1.3 millert 410: } else
411: s = TRUE;
412: if (save == ABORT)
413: return (save);
1.1 deraadt 414: save = TRUE;
415: }
416: }
417: if (save == FALSE /* && kbdmop == NULL */ ) /* experimental */
418: ewprintf("(No files need saving)");
419: return s;
420: }
421:
422: /*
423: * Search for a buffer, by name.
424: * If not found, and the "cflag" is TRUE,
425: * create a buffer and put it in the list of
426: * all buffers. Return pointer to the BUFFER
427: * block for the buffer.
428: */
1.3 millert 429: BUFFER *
1.26 vincent 430: bfind(const char *bname, int cflag)
1.3 millert 431: {
1.4 millert 432: BUFFER *bp;
433: LINE *lp;
1.15 mickey 434: int i;
1.1 deraadt 435:
436: bp = bheadp;
437: while (bp != NULL) {
1.7 art 438: if (strcmp(bname, bp->b_bname) == 0)
1.1 deraadt 439: return bp;
440: bp = bp->b_bufp;
441: }
1.3 millert 442: if (cflag != TRUE)
443: return NULL;
444: /* NOSTRICT */
445: if ((bp = (BUFFER *) malloc(sizeof(BUFFER))) == NULL) {
1.1 deraadt 446: ewprintf("Can't get %d bytes", sizeof(BUFFER));
447: return NULL;
448: }
1.20 vincent 449: if ((bp->b_bname = strdup(bname)) == NULL) {
1.3 millert 450: ewprintf("Can't get %d bytes", strlen(bname) + 1);
1.1 deraadt 451: free((char *) bp);
452: return NULL;
453: }
454: if ((lp = lalloc(0)) == NULL) {
1.26 vincent 455: free((char *) bp->b_bname);
1.1 deraadt 456: free((char *) bp);
457: return NULL;
458: }
1.3 millert 459: bp->b_altb = bp->b_bufp = NULL;
460: bp->b_dotp = lp;
461: bp->b_doto = 0;
1.1 deraadt 462: bp->b_markp = NULL;
463: bp->b_marko = 0;
1.3 millert 464: bp->b_flag = defb_flag;
465: bp->b_nwnd = 0;
1.1 deraadt 466: bp->b_linep = lp;
467: bp->b_nmodes = defb_nmodes;
1.24 vincent 468: LIST_INIT(&bp->b_undo);
1.1 deraadt 469: i = 0;
470: do {
1.3 millert 471: bp->b_modes[i] = defb_modes[i];
472: } while (i++ < defb_nmodes);
1.1 deraadt 473: bp->b_fname[0] = '\0';
474: bzero(&bp->b_fi, sizeof(bp->b_fi));
475: lp->l_fp = lp;
476: lp->l_bp = lp;
477: bp->b_bufp = bheadp;
478: bheadp = bp;
479: return bp;
480: }
481:
482: /*
483: * This routine blows away all of the text
484: * in a buffer. If the buffer is marked as changed
485: * then we ask if it is ok to blow it away; this is
486: * to save the user the grief of losing text. The
487: * window chain is nearly always wrong if this gets
488: * called; the caller must arrange for the updates
489: * that are required. Return TRUE if everything
490: * looks good.
491: */
1.3 millert 492: int
1.26 vincent 493: bclear(BUFFER *bp)
1.3 millert 494: {
495: LINE *lp;
496: int s;
1.1 deraadt 497:
1.21 deraadt 498: if ((bp->b_flag & BFCHG) != 0 && /* Changed. */
499: (s = eyesno("Buffer modified; kill anyway")) != TRUE)
1.1 deraadt 500: return (s);
1.3 millert 501: bp->b_flag &= ~BFCHG; /* Not changed */
502: while ((lp = lforw(bp->b_linep)) != bp->b_linep)
1.1 deraadt 503: lfree(lp);
1.3 millert 504: bp->b_dotp = bp->b_linep; /* Fix "." */
505: bp->b_doto = 0;
506: bp->b_markp = NULL; /* Invalidate "mark" */
1.1 deraadt 507: bp->b_marko = 0;
508: return TRUE;
509: }
510:
511: /*
512: * Display the given buffer in the given window. Flags indicated
513: * action on redisplay.
514: */
1.3 millert 515: int
1.26 vincent 516: showbuffer(BUFFER *bp, MGWIN *wp, int flags)
1.3 millert 517: {
518: BUFFER *obp;
519: MGWIN *owp;
1.1 deraadt 520:
1.3 millert 521: if (wp->w_bufp == bp) { /* Easy case! */
1.1 deraadt 522: wp->w_flag |= flags;
523: return TRUE;
524: }
525: /* First, dettach the old buffer from the window */
526: if ((bp->b_altb = obp = wp->w_bufp) != NULL) {
527: if (--obp->b_nwnd == 0) {
1.3 millert 528: obp->b_dotp = wp->w_dotp;
529: obp->b_doto = wp->w_doto;
1.1 deraadt 530: obp->b_markp = wp->w_markp;
531: obp->b_marko = wp->w_marko;
532: }
533: }
534: /* Now, attach the new buffer to the window */
535: wp->w_bufp = bp;
536:
1.3 millert 537: if (bp->b_nwnd++ == 0) { /* First use. */
538: wp->w_dotp = bp->b_dotp;
539: wp->w_doto = bp->b_doto;
1.1 deraadt 540: wp->w_markp = bp->b_markp;
541: wp->w_marko = bp->b_marko;
542: } else
1.3 millert 543: /* already on screen, steal values from other window */
1.1 deraadt 544: for (owp = wheadp; owp != NULL; owp = wp->w_wndp)
545: if (wp->w_bufp == bp && owp != wp) {
1.3 millert 546: wp->w_dotp = owp->w_dotp;
547: wp->w_doto = owp->w_doto;
1.1 deraadt 548: wp->w_markp = owp->w_markp;
549: wp->w_marko = owp->w_marko;
550: break;
551: }
1.3 millert 552: wp->w_flag |= WFMODE | flags;
1.1 deraadt 553: return TRUE;
554: }
555:
556: /*
557: * Pop the buffer we got passed onto the screen.
558: * Returns a status.
559: */
1.2 millert 560: MGWIN *
1.26 vincent 561: popbuf(BUFFER *bp)
1.3 millert 562: {
563: MGWIN *wp;
1.1 deraadt 564:
1.3 millert 565: if (bp->b_nwnd == 0) { /* Not on screen yet. */
566: if ((wp = wpopup()) == NULL)
567: return NULL;
1.1 deraadt 568: } else
569: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
570: if (wp->w_bufp == bp) {
1.3 millert 571: wp->w_flag |= WFHARD | WFFORCE;
572: return wp;
1.1 deraadt 573: }
1.3 millert 574: if (showbuffer(bp, wp, WFHARD) != TRUE)
575: return NULL;
1.1 deraadt 576: return wp;
577: }
578:
579: /*
580: * Insert another buffer at dot. Very useful.
581: */
1.3 millert 582: /* ARGSUSED */
583: int
1.26 vincent 584: bufferinsert(int f, int n)
1.1 deraadt 585: {
1.3 millert 586: BUFFER *bp;
587: LINE *clp;
588: int clo;
589: int nline;
590: int s;
591: char bufn[NBUFN];
1.1 deraadt 592:
593: /* Get buffer to use from user */
594: if (curbp->b_altb != NULL)
1.3 millert 595: s = eread("Insert buffer: (default %s) ", bufn, NBUFN,
1.14 art 596: EFNEW | EFBUF, &(curbp->b_altb->b_bname), NULL);
1.1 deraadt 597: else
1.14 art 598: s = eread("Insert buffer: ", bufn, NBUFN, EFNEW | EFBUF, NULL);
1.3 millert 599: if (s == ABORT)
600: return (s);
601: if (s == FALSE && curbp->b_altb != NULL)
602: bp = curbp->b_altb;
603: else if ((bp = bfind(bufn, FALSE)) == NULL)
604: return FALSE;
1.1 deraadt 605:
1.3 millert 606: if (bp == curbp) {
1.1 deraadt 607: ewprintf("Cannot insert buffer into self");
608: return FALSE;
609: }
610: /* insert the buffer */
611: nline = 0;
612: clp = lforw(bp->b_linep);
1.3 millert 613: for (;;) {
1.1 deraadt 614: for (clo = 0; clo < llength(clp); clo++)
615: if (linsert(1, lgetc(clp, clo)) == FALSE)
616: return FALSE;
1.3 millert 617: if ((clp = lforw(clp)) == bp->b_linep)
618: break;
619: if (newline(FFRAND, 1) == FALSE) /* fake newline */
1.1 deraadt 620: return FALSE;
621: nline++;
622: }
1.3 millert 623: if (nline == 1)
624: ewprintf("[Inserted 1 line]");
625: else
626: ewprintf("[Inserted %d lines]", nline);
1.1 deraadt 627:
1.3 millert 628: clp = curwp->w_linep; /* cosmetic adjustment */
629: if (curwp->w_dotp == clp) { /* for offscreen insert */
630: while (nline-- && lback(clp) != curbp->b_linep)
1.1 deraadt 631: clp = lback(clp);
1.3 millert 632: curwp->w_linep = clp; /* adjust framing. */
1.1 deraadt 633: curwp->w_flag |= WFHARD;
634: }
635: return (TRUE);
636: }
637:
638: /*
639: * Turn off the dirty bit on this buffer.
640: */
1.3 millert 641: /* ARGSUSED */
642: int
1.26 vincent 643: notmodified(int f, int n)
1.1 deraadt 644: {
1.3 millert 645: MGWIN *wp;
1.1 deraadt 646:
647: curbp->b_flag &= ~BFCHG;
1.3 millert 648: wp = wheadp; /* Update mode lines. */
1.1 deraadt 649: while (wp != NULL) {
650: if (wp->w_bufp == curbp)
651: wp->w_flag |= WFMODE;
652: wp = wp->w_wndp;
653: }
654: ewprintf("Modification-flag cleared");
655: return TRUE;
656: }
657:
658: #ifndef NO_HELP
659: /*
660: * Popbuf and set all windows to top of buffer. Currently only used by
661: * help functions.
662: */
1.3 millert 663: int
1.26 vincent 664: popbuftop(BUFFER *bp)
1.1 deraadt 665: {
1.3 millert 666: MGWIN *wp;
1.1 deraadt 667:
1.3 millert 668: bp->b_dotp = lforw(bp->b_linep);
669: bp->b_doto = 0;
670: if (bp->b_nwnd != 0) {
671: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
672: if (wp->w_bufp == bp) {
673: wp->w_dotp = bp->b_dotp;
674: wp->w_doto = 0;
675: wp->w_flag |= WFHARD;
676: }
677: }
678: return popbuf(bp) != NULL;
1.1 deraadt 679: }
680: #endif
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