Annotation of src/usr.bin/mg/buffer.c, Revision 1.38
1.38 ! cloder 1: /* $OpenBSD: buffer.c,v 1.37 2005/04/03 02:09:28 db 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
1.31 vincent 14: togglereadonly(int f, int n)
1.27 vincent 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:
1.37 db 26: return (1);
1.27 vincent 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;
1.34 vincent 40: char bufn[NBUFN], *bufp;
1.1 deraadt 41:
42: /* Get buffer to use from user */
1.21 deraadt 43: if ((curbp->b_altb == NULL) &&
44: ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
1.34 vincent 45: bufp = eread("Switch to buffer: ", bufn, NBUFN, EFNEW | EFBUF);
1.1 deraadt 46: else
1.34 vincent 47: bufp = eread("Switch to buffer: (default %s) ", bufn, NBUFN,
1.3 millert 48: EFNEW | EFBUF, curbp->b_altb->b_bname);
1.1 deraadt 49:
1.34 vincent 50: if (bufp == NULL)
1.37 db 51: return (ABORT);
1.34 vincent 52: if (bufn[0] == 0 && curbp->b_altb != NULL)
1.3 millert 53: bp = curbp->b_altb;
54: else if ((bp = bfind(bufn, TRUE)) == NULL)
1.37 db 55: return (FALSE);
1.1 deraadt 56:
57: /* and put it in current window */
58: curbp = bp;
1.37 db 59: return (showbuffer(bp, curwp, WFFORCE | WFHARD));
1.1 deraadt 60: }
61:
62: /*
63: * pop to buffer asked for by the user.
64: */
1.3 millert 65: /* ARGSUSED */
66: int
1.26 vincent 67: poptobuffer(int f, int n)
1.1 deraadt 68: {
1.3 millert 69: BUFFER *bp;
70: MGWIN *wp;
1.34 vincent 71: char bufn[NBUFN], *bufp;
1.1 deraadt 72:
73: /* Get buffer to use from user */
1.21 deraadt 74: if ((curbp->b_altb == NULL) &&
75: ((curbp->b_altb = bfind("*scratch*", TRUE)) == NULL))
1.34 vincent 76: bufp = eread("Switch to buffer in other window: ", bufn, NBUFN,
1.3 millert 77: EFNEW | EFBUF);
1.1 deraadt 78: else
1.34 vincent 79: bufp = eread("Switch to buffer in other window: (default %s) ",
1.3 millert 80: bufn, NBUFN, EFNEW | EFBUF, curbp->b_altb->b_bname);
1.34 vincent 81: if (bufp == NULL)
1.37 db 82: return (ABORT);
1.34 vincent 83: if (bufp[0] == 0 && curbp->b_altb != NULL)
1.3 millert 84: bp = curbp->b_altb;
85: else if ((bp = bfind(bufn, TRUE)) == NULL)
1.37 db 86: return (FALSE);
1.1 deraadt 87:
88: /* and put it in a new window */
1.3 millert 89: if ((wp = popbuf(bp)) == NULL)
1.37 db 90: return (FALSE);
1.1 deraadt 91: curbp = bp;
92: curwp = wp;
1.37 db 93: return (TRUE);
1.1 deraadt 94: }
95:
96: /*
97: * Dispose of a buffer, by name.
98: * Ask for the name. Look it up (don't get too
99: * upset if it isn't there at all!). Clear the buffer (ask
100: * if the buffer has been changed). Then free the header
101: * line and the buffer header. Bound to "C-X K".
102: */
1.3 millert 103: /* ARGSUSED */
104: int
1.35 jfb 105: killbuffer_cmd(int f, int n)
1.1 deraadt 106: {
1.3 millert 107: BUFFER *bp;
1.34 vincent 108: char bufn[NBUFN], *bufp;
1.3 millert 109:
1.34 vincent 110: if ((bufp = eread("Kill buffer: (default %s) ", bufn, NBUFN, EFNEW | EFBUF,
111: curbp->b_bname)) == NULL)
1.37 db 112: return (ABORT);
1.34 vincent 113: else if (bufp[0] == 0)
1.3 millert 114: bp = curbp;
115: else if ((bp = bfind(bufn, FALSE)) == NULL)
1.37 db 116: return (FALSE);
117: return (killbuffer(bp));
1.35 jfb 118: }
119:
120: int
121: killbuffer(BUFFER *bp)
122: {
123: BUFFER *bp1;
124: BUFFER *bp2;
125: MGWIN *wp;
1.3 millert 126:
127: /*
1.37 db 128: * Find some other buffer to display. Try the alternate buffer,
1.3 millert 129: * then the first different buffer in the buffer list. If there's
130: * only one buffer, create buffer *scratch* and make it the alternate
131: * buffer. Return if *scratch* is only buffer...
1.1 deraadt 132: */
133: if ((bp1 = bp->b_altb) == NULL) {
134: bp1 = (bp == bheadp) ? bp->b_bufp : bheadp;
135: if (bp1 == NULL) {
136: /* only one buffer. see if it's *scratch* */
1.3 millert 137: if (bp == bfind("*scratch*", FALSE))
1.37 db 138: return (FALSE);
1.1 deraadt 139: /* create *scratch* for alternate buffer */
1.3 millert 140: if ((bp1 = bfind("*scratch*", TRUE)) == NULL)
1.37 db 141: return (FALSE);
1.1 deraadt 142: }
143: }
1.3 millert 144: if (bclear(bp) != TRUE)
1.37 db 145: return (TRUE);
1.1 deraadt 146: for (wp = wheadp; bp->b_nwnd > 0; wp = wp->w_wndp) {
1.3 millert 147: if (wp->w_bufp == bp) {
148: bp2 = bp1->b_altb; /* save alternate buffer */
149: if (showbuffer(bp1, wp, WFMODE | WFFORCE | WFHARD))
150: bp1->b_altb = bp2;
151: else
152: bp1 = bp2;
153: }
154: }
155: if (bp == curbp)
156: curbp = bp1;
157: free(bp->b_linep); /* Release header line. */
158: bp2 = NULL; /* Find the header. */
1.1 deraadt 159: bp1 = bheadp;
160: while (bp1 != bp) {
161: if (bp1->b_altb == bp)
162: bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
163: bp2 = bp1;
164: bp1 = bp1->b_bufp;
165: }
1.3 millert 166: bp1 = bp1->b_bufp; /* Next one in chain. */
167: if (bp2 == NULL) /* Unlink it. */
1.1 deraadt 168: bheadp = bp1;
169: else
170: bp2->b_bufp = bp1;
1.3 millert 171: while (bp1 != NULL) { /* Finish with altb's */
1.1 deraadt 172: if (bp1->b_altb == bp)
173: bp1->b_altb = (bp->b_altb == bp1) ? NULL : bp->b_altb;
174: bp1 = bp1->b_bufp;
175: }
1.26 vincent 176: free((char *)bp->b_bname); /* Release name block */
1.3 millert 177: free(bp); /* Release buffer block */
1.37 db 178: return (TRUE);
1.1 deraadt 179: }
180:
181: /*
182: * Save some buffers - just call anycb with the arg flag.
183: */
1.3 millert 184: /* ARGSUSED */
185: int
1.26 vincent 186: savebuffers(int f, int n)
1.1 deraadt 187: {
1.3 millert 188: if (anycb(f) == ABORT)
1.37 db 189: return (ABORT);
190: return (TRUE);
1.1 deraadt 191: }
192:
193: /*
1.19 art 194: * Listing buffers.
195: */
196: static int listbuf_ncol;
197:
198: static int listbuf_goto_buffer(int f, int n);
199:
200: static PF listbuf_pf[] = {
1.37 db 201: listbuf_goto_buffer
1.19 art 202: };
203:
204: static struct KEYMAPE (1 + IMAPEXT) listbufmap = {
205: 1,
206: 1 + IMAPEXT,
207: rescan,
208: {
1.37 db 209: { CCHR('M'), CCHR('M'), listbuf_pf, NULL }
1.19 art 210: }
211: };
212:
213: /*
1.1 deraadt 214: * Display the buffer list. This is done
215: * in two parts. The "makelist" routine figures out
216: * the text, and puts it in a buffer. "popbuf"
217: * then pops the data onto the screen. Bound to
218: * "C-X C-B".
219: */
1.3 millert 220: /* ARGSUSED */
221: int
1.26 vincent 222: listbuffers(int f, int n)
1.1 deraadt 223: {
1.37 db 224: static int initialized = 0;
225: BUFFER *bp;
226: MGWIN *wp;
1.1 deraadt 227:
1.19 art 228: if (!initialized) {
229: maps_add((KEYMAP *)&listbufmap, "listbufmap");
230: initialized = 1;
231: }
232:
1.3 millert 233: if ((bp = makelist()) == NULL || (wp = popbuf(bp)) == NULL)
1.37 db 234: return (FALSE);
235: wp->w_dotp = bp->b_dotp; /* fix up if window already on screen */
1.1 deraadt 236: wp->w_doto = bp->b_doto;
1.19 art 237: bp->b_modes[0] = name_mode("fundamental");
238: bp->b_modes[1] = name_mode("listbufmap");
239: bp->b_nmodes = 1;
240:
1.37 db 241: return (TRUE);
1.1 deraadt 242: }
243:
244: /*
245: * This routine rebuilds the text for the
1.37 db 246: * list buffers command. Return pointer
247: * to new list if everything works.
248: * Return NULL if there is an error (if
249: * there is no memory).
1.1 deraadt 250: */
1.3 millert 251: static BUFFER *
1.26 vincent 252: makelist(void)
1.3 millert 253: {
1.11 art 254: int w = ncol / 2;
255: BUFFER *bp, *blp;
1.3 millert 256: LINE *lp;
257:
1.19 art 258:
1.3 millert 259: if ((blp = bfind("*Buffer List*", TRUE)) == NULL)
1.37 db 260: return (NULL);
1.3 millert 261: if (bclear(blp) != TRUE)
1.37 db 262: return (NULL);
1.3 millert 263: blp->b_flag &= ~BFCHG; /* Blow away old. */
1.28 vincent 264: blp->b_flag |= BFREADONLY;
1.1 deraadt 265:
1.19 art 266: listbuf_ncol = ncol; /* cache ncol for listbuf_goto_buffer */
267:
1.11 art 268: if (addlinef(blp, "%-*s%s", w, " MR Buffer", "Size File") == FALSE ||
269: addlinef(blp, "%-*s%s", w, " -- ------", "---- ----") == FALSE)
1.37 db 270: return (NULL);
1.11 art 271:
272: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
273: RSIZE nbytes;
274:
1.3 millert 275: nbytes = 0; /* Count bytes in buf. */
1.1 deraadt 276: if (bp != blp) {
277: lp = lforw(bp->b_linep);
278: while (lp != bp->b_linep) {
1.3 millert 279: nbytes += llength(lp) + 1;
1.1 deraadt 280: lp = lforw(lp);
281: }
1.3 millert 282: if (nbytes)
283: nbytes--; /* no bonus newline */
1.1 deraadt 284: }
1.11 art 285:
1.19 art 286: if (addlinef(blp, "%c%c%c %-*.*s%c%-6d %-*s",
1.11 art 287: (bp == curbp) ? '.' : ' ', /* current buffer ? */
288: ((bp->b_flag & BFCHG) != 0) ? '*' : ' ', /* changed ? */
1.27 vincent 289: ((bp->b_flag & BFREADONLY) != 0) ? ' ' : '*',
1.19 art 290: w - 5, /* four chars already written */
291: w - 5, /* four chars already written */
1.11 art 292: bp->b_bname, /* buffer name */
1.19 art 293: strlen(bp->b_bname) < w - 5 ? ' ' : '$', /* truncated? */
1.11 art 294: nbytes, /* buffer size */
295: w - 7, /* seven chars already written */
296: bp->b_fname) == FALSE)
1.37 db 297: return (NULL);
1.1 deraadt 298: }
1.3 millert 299: blp->b_dotp = lforw(blp->b_linep); /* put dot at beginning of
300: * buffer */
1.1 deraadt 301: blp->b_doto = 0;
1.37 db 302: return (blp); /* All done */
1.19 art 303: }
304:
305: static int
306: listbuf_goto_buffer(int f, int n)
307: {
1.37 db 308: BUFFER *bp;
309: MGWIN *wp;
310: char *line;
311: int i;
1.19 art 312:
313: if (curwp->w_dotp->l_text[listbuf_ncol/2 - 1] == '$') {
314: ewprintf("buffer name truncated");
1.37 db 315: return (FALSE);
1.19 art 316: }
317:
318: if ((line = malloc(listbuf_ncol/2)) == NULL)
1.37 db 319: return (FALSE);
1.19 art 320:
321: memcpy(line, curwp->w_dotp->l_text + 4, listbuf_ncol/2 - 5);
322: for (i = listbuf_ncol/2 - 6; i > 0; i--) {
323: if (line[i] != ' ') {
324: line[i + 1] = '\0';
325: break;
326: }
327: }
1.37 db 328: if (i == 0)
329: return (FALSE);
1.19 art 330:
331: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
332: if (strcmp(bp->b_bname, line) == 0)
333: break;
334: }
1.37 db 335: if (bp == NULL)
336: return (FALSE);
337:
1.19 art 338: if ((wp = popbuf(bp)) == NULL)
1.37 db 339: return (FALSE);
1.19 art 340: curbp = bp;
341: curwp = wp;
342:
1.37 db 343: return (TRUE);
1.1 deraadt 344: }
345:
346: /*
1.8 art 347: * The argument "text" points to a format string. Append this line to the
1.3 millert 348: * buffer. Handcraft the EOL on the end. Return TRUE if it worked and
1.1 deraadt 349: * FALSE if you ran out of room.
350: */
1.3 millert 351: int
1.8 art 352: addlinef(BUFFER *bp, char *fmt, ...)
1.3 millert 353: {
1.37 db 354: va_list ap;
355: LINE *lp;
1.1 deraadt 356:
1.30 vincent 357: if ((lp = lalloc(0)) == NULL)
358: return (FALSE);
1.8 art 359: va_start(ap, fmt);
1.30 vincent 360: if (vasprintf(&lp->l_text, fmt, ap) == -1) {
361: lfree(lp);
1.16 deraadt 362: va_end(ap);
1.30 vincent 363: return (FALSE);
1.16 deraadt 364: }
1.30 vincent 365: lp->l_used = strlen(lp->l_text);
1.8 art 366: va_end(ap);
367:
1.3 millert 368: bp->b_linep->l_bp->l_fp = lp; /* Hook onto the end */
1.1 deraadt 369: lp->l_bp = bp->b_linep->l_bp;
370: bp->b_linep->l_bp = lp;
371: lp->l_fp = bp->b_linep;
1.8 art 372:
1.37 db 373: return (TRUE);
1.1 deraadt 374: }
375:
376: /*
1.3 millert 377: * Look through the list of buffers, giving the user a chance to save them.
378: * Return TRUE if there are any changed buffers afterwards. Buffers that
379: * don't have an associated file don't count. Return FALSE if there are
380: * no changed buffers.
381: */
382: int
1.26 vincent 383: anycb(int f)
1.3 millert 384: {
385: BUFFER *bp;
1.37 db 386: int s = FALSE, save = FALSE;
387: char prompt[NFILEN + 11];
1.1 deraadt 388:
389: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.21 deraadt 390: if (bp->b_fname != NULL && *(bp->b_fname) != '\0' &&
391: (bp->b_flag & BFCHG) != 0) {
1.37 db 392: snprintf(prompt, sizeof(prompt), "Save file %s",
1.17 deraadt 393: bp->b_fname);
1.21 deraadt 394: if ((f == TRUE || (save = eyorn(prompt)) == TRUE) &&
395: buffsave(bp) == TRUE) {
1.1 deraadt 396: bp->b_flag &= ~BFCHG;
397: upmodes(bp);
1.3 millert 398: } else
399: s = TRUE;
400: if (save == ABORT)
401: return (save);
1.1 deraadt 402: save = TRUE;
403: }
404: }
405: if (save == FALSE /* && kbdmop == NULL */ ) /* experimental */
406: ewprintf("(No files need saving)");
1.37 db 407: return (s);
1.1 deraadt 408: }
409:
410: /*
411: * Search for a buffer, by name.
412: * If not found, and the "cflag" is TRUE,
413: * create a buffer and put it in the list of
414: * all buffers. Return pointer to the BUFFER
415: * block for the buffer.
416: */
1.3 millert 417: BUFFER *
1.26 vincent 418: bfind(const char *bname, int cflag)
1.3 millert 419: {
1.4 millert 420: BUFFER *bp;
421: LINE *lp;
1.15 mickey 422: int i;
1.1 deraadt 423:
424: bp = bheadp;
425: while (bp != NULL) {
1.7 art 426: if (strcmp(bname, bp->b_bname) == 0)
1.37 db 427: return (bp);
1.1 deraadt 428: bp = bp->b_bufp;
429: }
1.3 millert 430: if (cflag != TRUE)
1.37 db 431: return (NULL);
1.29 vincent 432:
1.32 vincent 433: bp = calloc(1, sizeof(BUFFER));
434: if (bp == NULL) {
1.1 deraadt 435: ewprintf("Can't get %d bytes", sizeof(BUFFER));
1.37 db 436: return (NULL);
1.1 deraadt 437: }
1.20 vincent 438: if ((bp->b_bname = strdup(bname)) == NULL) {
1.3 millert 439: ewprintf("Can't get %d bytes", strlen(bname) + 1);
1.29 vincent 440: free(bp);
1.37 db 441: return (NULL);
1.1 deraadt 442: }
443: if ((lp = lalloc(0)) == NULL) {
1.26 vincent 444: free((char *) bp->b_bname);
1.29 vincent 445: free(bp);
1.37 db 446: return (NULL);
1.1 deraadt 447: }
1.3 millert 448: bp->b_altb = bp->b_bufp = NULL;
449: bp->b_dotp = lp;
450: bp->b_doto = 0;
1.1 deraadt 451: bp->b_markp = NULL;
452: bp->b_marko = 0;
1.3 millert 453: bp->b_flag = defb_flag;
454: bp->b_nwnd = 0;
1.1 deraadt 455: bp->b_linep = lp;
456: bp->b_nmodes = defb_nmodes;
457: i = 0;
458: do {
1.3 millert 459: bp->b_modes[i] = defb_modes[i];
460: } while (i++ < defb_nmodes);
1.1 deraadt 461: bp->b_fname[0] = '\0';
462: bzero(&bp->b_fi, sizeof(bp->b_fi));
463: lp->l_fp = lp;
464: lp->l_bp = lp;
465: bp->b_bufp = bheadp;
466: bheadp = bp;
1.37 db 467: return (bp);
1.1 deraadt 468: }
469:
470: /*
471: * This routine blows away all of the text
472: * in a buffer. If the buffer is marked as changed
473: * then we ask if it is ok to blow it away; this is
474: * to save the user the grief of losing text. The
475: * window chain is nearly always wrong if this gets
476: * called; the caller must arrange for the updates
477: * that are required. Return TRUE if everything
478: * looks good.
479: */
1.3 millert 480: int
1.26 vincent 481: bclear(BUFFER *bp)
1.3 millert 482: {
483: LINE *lp;
484: int s;
1.1 deraadt 485:
1.37 db 486: if ((bp->b_flag & BFCHG) != 0 && /* Changed. */
1.21 deraadt 487: (s = eyesno("Buffer modified; kill anyway")) != TRUE)
1.1 deraadt 488: return (s);
1.3 millert 489: bp->b_flag &= ~BFCHG; /* Not changed */
490: while ((lp = lforw(bp->b_linep)) != bp->b_linep)
1.1 deraadt 491: lfree(lp);
1.32 vincent 492: bp->b_dotp = bp->b_linep; /* Fix dot */
1.3 millert 493: bp->b_doto = 0;
494: bp->b_markp = NULL; /* Invalidate "mark" */
1.1 deraadt 495: bp->b_marko = 0;
1.37 db 496: return (TRUE);
1.1 deraadt 497: }
498:
499: /*
500: * Display the given buffer in the given window. Flags indicated
501: * action on redisplay.
502: */
1.3 millert 503: int
1.26 vincent 504: showbuffer(BUFFER *bp, MGWIN *wp, int flags)
1.3 millert 505: {
506: BUFFER *obp;
507: MGWIN *owp;
1.1 deraadt 508:
1.32 vincent 509: if (wp->w_bufp == bp) { /* Easy case! */
1.1 deraadt 510: wp->w_flag |= flags;
1.32 vincent 511: wp->w_dotp = bp->b_dotp;
512: wp->w_doto = bp->b_doto;
1.37 db 513: return (TRUE);
1.1 deraadt 514: }
1.37 db 515: /* First, detach the old buffer from the window */
1.1 deraadt 516: if ((bp->b_altb = obp = wp->w_bufp) != NULL) {
517: if (--obp->b_nwnd == 0) {
1.3 millert 518: obp->b_dotp = wp->w_dotp;
519: obp->b_doto = wp->w_doto;
1.1 deraadt 520: obp->b_markp = wp->w_markp;
521: obp->b_marko = wp->w_marko;
522: }
523: }
524: /* Now, attach the new buffer to the window */
525: wp->w_bufp = bp;
526:
1.3 millert 527: if (bp->b_nwnd++ == 0) { /* First use. */
528: wp->w_dotp = bp->b_dotp;
529: wp->w_doto = bp->b_doto;
1.1 deraadt 530: wp->w_markp = bp->b_markp;
531: wp->w_marko = bp->b_marko;
532: } else
1.3 millert 533: /* already on screen, steal values from other window */
1.1 deraadt 534: for (owp = wheadp; owp != NULL; owp = wp->w_wndp)
535: if (wp->w_bufp == bp && owp != wp) {
1.3 millert 536: wp->w_dotp = owp->w_dotp;
537: wp->w_doto = owp->w_doto;
1.1 deraadt 538: wp->w_markp = owp->w_markp;
539: wp->w_marko = owp->w_marko;
540: break;
541: }
1.3 millert 542: wp->w_flag |= WFMODE | flags;
1.37 db 543: return (TRUE);
1.1 deraadt 544: }
545:
546: /*
547: * Pop the buffer we got passed onto the screen.
548: * Returns a status.
549: */
1.2 millert 550: MGWIN *
1.26 vincent 551: popbuf(BUFFER *bp)
1.3 millert 552: {
553: MGWIN *wp;
1.1 deraadt 554:
1.3 millert 555: if (bp->b_nwnd == 0) { /* Not on screen yet. */
556: if ((wp = wpopup()) == NULL)
1.37 db 557: return (NULL);
1.1 deraadt 558: } else
559: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
560: if (wp->w_bufp == bp) {
1.3 millert 561: wp->w_flag |= WFHARD | WFFORCE;
1.37 db 562: return (wp);
1.1 deraadt 563: }
1.3 millert 564: if (showbuffer(bp, wp, WFHARD) != TRUE)
1.37 db 565: return (NULL);
566: return (wp);
1.1 deraadt 567: }
568:
569: /*
570: * Insert another buffer at dot. Very useful.
571: */
1.3 millert 572: /* ARGSUSED */
573: int
1.26 vincent 574: bufferinsert(int f, int n)
1.1 deraadt 575: {
1.3 millert 576: BUFFER *bp;
577: LINE *clp;
1.36 deraadt 578: int clo, nline;
579: char bufn[NBUFN], *bufp;
1.1 deraadt 580:
581: /* Get buffer to use from user */
582: if (curbp->b_altb != NULL)
1.34 vincent 583: bufp = eread("Insert buffer: (default %s) ", bufn, NBUFN,
1.38 ! cloder 584: EFNEW | EFBUF, curbp->b_altb->b_bname);
1.1 deraadt 585: else
1.38 ! cloder 586: bufp = eread("Insert buffer: ", bufn, NBUFN, EFNEW | EFBUF);
1.34 vincent 587: if (bufp == NULL)
1.37 db 588: return (ABORT);
1.34 vincent 589: if (bufp[0] == '\0' && curbp->b_altb != NULL)
1.3 millert 590: bp = curbp->b_altb;
591: else if ((bp = bfind(bufn, FALSE)) == NULL)
1.37 db 592: return (FALSE);
1.1 deraadt 593:
1.3 millert 594: if (bp == curbp) {
1.1 deraadt 595: ewprintf("Cannot insert buffer into self");
1.37 db 596: return (FALSE);
1.1 deraadt 597: }
598: /* insert the buffer */
599: nline = 0;
600: clp = lforw(bp->b_linep);
1.3 millert 601: for (;;) {
1.1 deraadt 602: for (clo = 0; clo < llength(clp); clo++)
603: if (linsert(1, lgetc(clp, clo)) == FALSE)
1.37 db 604: return (FALSE);
1.3 millert 605: if ((clp = lforw(clp)) == bp->b_linep)
606: break;
607: if (newline(FFRAND, 1) == FALSE) /* fake newline */
1.37 db 608: return (FALSE);
1.1 deraadt 609: nline++;
610: }
1.3 millert 611: if (nline == 1)
612: ewprintf("[Inserted 1 line]");
613: else
614: ewprintf("[Inserted %d lines]", nline);
1.1 deraadt 615:
1.37 db 616: clp = curwp->w_linep; /* cosmetic adjustment */
1.3 millert 617: if (curwp->w_dotp == clp) { /* for offscreen insert */
618: while (nline-- && lback(clp) != curbp->b_linep)
1.1 deraadt 619: clp = lback(clp);
1.37 db 620: curwp->w_linep = clp; /* adjust framing. */
1.1 deraadt 621: curwp->w_flag |= WFHARD;
622: }
623: return (TRUE);
624: }
625:
626: /*
627: * Turn off the dirty bit on this buffer.
628: */
1.3 millert 629: /* ARGSUSED */
630: int
1.26 vincent 631: notmodified(int f, int n)
1.1 deraadt 632: {
1.3 millert 633: MGWIN *wp;
1.1 deraadt 634:
635: curbp->b_flag &= ~BFCHG;
1.3 millert 636: wp = wheadp; /* Update mode lines. */
1.1 deraadt 637: while (wp != NULL) {
638: if (wp->w_bufp == curbp)
639: wp->w_flag |= WFMODE;
640: wp = wp->w_wndp;
641: }
642: ewprintf("Modification-flag cleared");
1.37 db 643: return (TRUE);
1.1 deraadt 644: }
645:
646: #ifndef NO_HELP
647: /*
648: * Popbuf and set all windows to top of buffer. Currently only used by
649: * help functions.
650: */
1.3 millert 651: int
1.26 vincent 652: popbuftop(BUFFER *bp)
1.1 deraadt 653: {
1.3 millert 654: MGWIN *wp;
1.1 deraadt 655:
1.3 millert 656: bp->b_dotp = lforw(bp->b_linep);
657: bp->b_doto = 0;
658: if (bp->b_nwnd != 0) {
659: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
660: if (wp->w_bufp == bp) {
661: wp->w_dotp = bp->b_dotp;
662: wp->w_doto = 0;
663: wp->w_flag |= WFHARD;
664: }
665: }
1.37 db 666: return (popbuf(bp) != NULL);
1.1 deraadt 667: }
668: #endif
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