Exemplo n.º 1
0
/*
 * Delete operator.
 *
 * Hard case of deleting a range where both wcursor and wdot
 * are specified is treated as a special case of change and handled
 * by vchange (although vchange may pass it back if it degenerates
 * to a full line range delete.)
 */
void 
vdelete(int c)
{
	register char *cp;
	register int i;

	if (wdot) {
		if (wcursor) {
			vchange(EOF);
			return;
		}
		if ((i = xdw()) < 0)
			return;
		if (state != VISUAL) {
			vgoto(LINE(0), 0);
			vputchar('@');
		}
		wdot = dot;
		vremote(i, delete, 0);
		notenam = "delete";
		DEL[0] = 0;
		killU();
		vreplace(vcline, i, 0);
		if (wdot > dol)
			vcline--;
		vrepaint(NOSTR);
		return;
	}
	if (wcursor < linebuf)
		wcursor = linebuf;
	if (cursor == wcursor) {
		beep();
		return;
	}
	i = vdcMID();
	cp = cursor;
	setDEL();
	CP(cp, wcursor);
	if (cp > linebuf && (cp[0] == 0 || c == '#'))
		cp--;
	if (state == HARDOPEN) {
		bleep(i, cp);
		cursor = cp;
		return;
	}
	physdc(column(cursor + skipleft(linebuf, cursor)), i);
	DEPTH(vcline) = 0;
	vreopen(LINE(vcline), lineDOT(), vcline);
	vsyncCL();
	vsetcurs(cp);
}
Exemplo n.º 2
0
/*
 * Start harcopy open.
 * Print an image of the line to the left of the cursor
 * under the full print of the line and position the cursor.
 * If we are in a scroll ^D within hardcopy open then all this
 * is suppressed.
 */
void 
sethard(void)
{

	if (state == VISUAL)
		return;
	rubble = 0;
	state = HARDOPEN;
	if (hold & HOLDROL)
		return;
	vup1();
	LINE(0) = WBOT;
	if (Pline == numbline)
		vgoto(WBOT, 0), printf("%6d  ", lineDOT());
}
Exemplo n.º 3
0
void
vappend(int ch, int cnt, int indent)
{
	register int i;
	register char *gcursor;
	bool escape;
	int repcnt;
	short oldhold = hold;

	/*
	 * Before a move in hardopen when the line is dirty
	 * or we are in the middle of the printed representation,
	 * we retype the line to the left of the cursor so the
	 * insert looks clean.
	 */
	if (ch != 'o' && state == HARDOPEN && (rubble || !ateopr())) {
		rubble = 1;
		wcursor = cursor;
		vmove();
	}
	vaifirst = indent == 0;

	/*
	 * Handle replace character by (eventually)
	 * limiting the number of input characters allowed
	 * in the vgetline routine.
	 */
	if (ch == 'r')
		repcnt = 2;
	else
		repcnt = 0;

	/*
	 * If an autoindent is specified, then
	 * generate a mixture of blanks to tabs to implement
	 * it and place the cursor after the indent.
	 * Text read by the vgetline routine will be placed in genbuf,
	 * so the indent is generated there.
	 */
	if (value(AUTOINDENT) && indent != 0) {
		gcursor = genindent(indent);
		*gcursor = 0;
		vgotoCL(qcolumn(cursor - 1, genbuf));
	} else {
		gcursor = genbuf;
		*gcursor = 0;
		if (ch == 'o')
			vfixcurs();
	}

	/*
	 * Prepare for undo.  Pointers delimit inserted portion of line.
	 */
	vUA1 = vUA2 = cursor;

	/*
	 * If we are not in a repeated command and a ^@ comes in
	 * then this means the previous inserted text.
	 * If there is none or it was too long to be saved,
	 * then beep() and also arrange to undo any damage done
	 * so far (e.g. if we are a change.)
	 */
	if ((vglobp && *vglobp == 0) || peekbr()) {
		if ((INS[0] & (OVERBUF|TRIM)) == OVERBUF) {
			beep();
			if (!splitw)
				ungetkey('u');
			doomed = 0;
			hold = oldhold;
			return;
		}
		/*
		 * Unread input from INS.
		 * An escape will be generated at end of string.
		 * Hold off n^^2 type update on dumb terminals.
		 */
		vglobp = INS;
		hold |= HOLDQIK;
	} else if (vglobp == 0)
		/*
		 * Not a repeated command, get
		 * a new inserted text for repeat.
		 */
		INS[0] = 0;

	/*
	 * For wrapmargin to hack away second space after a '.'
	 * when the first space caused a line break we keep
	 * track that this happened in gobblebl, which says
	 * to gobble up a blank silently.
	 */
	gobblebl = 0;

	/*
	 * Text gathering loop.
	 * New text goes into genbuf starting at gcursor.
	 * cursor preserves place in linebuf where text will eventually go.
	 */
	if (*cursor == 0 || state == CRTOPEN)
		hold |= HOLDROL;
	for (;;) {
		if (ch == 'r' && repcnt == 0)
			escape = 0;
		else {
			gcursor = vgetline(repcnt, gcursor, &escape);

			/*
			 * After an append, stick information
			 * about the ^D's and ^^D's and 0^D's in
			 * the repeated text buffer so repeated
			 * inserts of stuff indented with ^D as backtab's
			 * can work.
			 */
			if (HADUP)
				addtext("^");
			else if (HADZERO)
				addtext("0");
			while (CDCNT > 0)
				addtext("\204"), CDCNT--;
			if (gobbled)
				addtext(" ");
			addtext(ogcursor);
		}
		repcnt = 0;

		/*
		 * Smash the generated and preexisting indents together
		 * and generate one cleanly made out of tabs and spaces
		 * if we are using autoindent.
		 */
		if (!vaifirst && value(AUTOINDENT)) {
			i = fixindent(indent);
			if (!HADUP)
				indent = i;
			gcursor = strend(genbuf);
		}

		/*
		 * Limit the repetition count based on maximum
		 * possible line length; do output implied
		 * by further count (> 1) and cons up the new line
		 * in linebuf.
		 */
		cnt = vmaxrep(ch, cnt);
		CP(gcursor + 1, cursor);
		do {
			CP(cursor, genbuf);
			if (cnt > 1) {
				int oldhold = hold;

				Outchar = vinschar;
				hold |= HOLDQIK;
				ex_printf("%s", genbuf);
				hold = oldhold;
				Outchar = vputchar;
			}
			cursor += gcursor - genbuf;
		} while (--cnt > 0);
		endim();
		vUA2 = cursor;
		if (escape != '\n')
			CP(cursor, gcursor + 1);

		/*
		 * If doomed characters remain, clobber them,
		 * and reopen the line to get the display exact.
		 */
		if (state != HARDOPEN) {
			DEPTH(vcline) = 0;
			if (doomed > 0) {
				register int cind = cindent();

				physdc(cind, cind + doomed);
				doomed = 0;
			}
			i = vreopen(LINE(vcline), lineDOT(), vcline);
		}

		/*
		 * All done unless we are continuing on to another line.
		 */
		if (escape != '\n')
			break;

		/*
		 * Set up for the new line.
		 * First save the current line, then construct a new
		 * first image for the continuation line consisting
		 * of any new autoindent plus the pushed ahead text.
		 */
		killU();
		addtext(gobblebl ? " " : "\n");
		vsave();
		cnt = 1;
		if (value(AUTOINDENT)) {
#ifdef LISP
			if (value(LISP))
				indent = lindent(dot + 1);
			else
#endif
			     if (!HADUP && vaifirst)
				indent = whitecnt(linebuf);
			vaifirst = 0;
			strcLIN(vpastwh(gcursor + 1));
			gcursor = genindent(indent);
			*gcursor = 0;
			if (gcursor + strlen(linebuf) > &genbuf[LBSIZE - 2])
				gcursor = genbuf;
			CP(gcursor, linebuf);
		} else {
			CP(genbuf, gcursor + 1);
			gcursor = genbuf;
		}

		/*
		 * If we started out as a single line operation and are now
		 * turning into a multi-line change, then we had better yank
		 * out dot before it changes so that undo will work
		 * correctly later.
		 */
		if (vundkind == VCHNG) {
			vremote(1, (void (*)(int))yank, 0);
			undap1--;
		}

		/*
		 * Now do the append of the new line in the buffer,
		 * and update the display.  If slowopen
		 * we don't do very much.
		 */
		vdoappend(genbuf);
		vundkind = VMANYINS;
		vcline++;
		if (state != VISUAL)
			vshow(dot, NOLINE);
		else {
			i += LINE(vcline - 1);
			vopen(dot, i);
			if (value(SLOWOPEN))
				vscrap();
			else
				vsync1(LINE(vcline));
		}
		strcLIN(gcursor);
		*gcursor = 0;
		cursor = linebuf;
		vgotoCL(qcolumn(cursor - 1, genbuf));
	}

	/*
	 * All done with insertion, position the cursor
	 * and sync the screen.
	 */
	hold = oldhold;
	if (cursor > linebuf)
		cursor--;
	if (state != HARDOPEN)
		vsyncCL();
	else if (cursor > linebuf)
		back1();
	doomed = 0;
	wcursor = cursor;
	vmove();
}
Exemplo n.º 4
0
vmain()
{
	register int c, cnt, i;
	char esave[TUBECOLS];
	char *oglobp;
	char d;
	line *addr;
	int ind, nlput;
	int shouldpo = 0;
	int onumber, olist, (*OPline)(), (*OPutchar)();

	vch_mac = VC_NOTINMAC;

	/*
	 * If we started as a vi command (on the command line)
	 * then go process initial commands (recover, next or tag).
	 */
	if (initev) {
		oglobp = globp;
		globp = initev;
		hadcnt = cnt = 0;
		i = tchng;
		addr = dot;
		goto doinit;
	}

	/*
	 * NB:
	 *
	 * The current line is always in the line buffer linebuf,
	 * and the cursor at the position cursor.  You should do
	 * a vsave() before moving off the line to make sure the disk
	 * copy is updated if it has changed, and a getDOT() to get
	 * the line back if you mung linebuf.  The motion
	 * routines in ex_vwind.c handle most of this.
	 */
	for (;;) {
		/*
		 * Decode a visual command.
		 * First sync the temp file if there has been a reasonable
		 * amount of change.  Clear state for decoding of next
		 * command.
		 */
		TSYNC();
		vglobp = 0;
		vreg = 0;
		hold = 0;
		seenprompt = 1;
		wcursor = 0;
		Xhadcnt = hadcnt = 0;
		Xcnt = cnt = 1;
		splitw = 0;
		if (i = holdupd) {
			if (state == VISUAL)
				ignore(peekkey());
			holdupd = 0;
/*
			if (LINE(0) < ZERO) {
				vclear();
				vcnt = 0;
				i = 3;
			}
*/
			if (state != VISUAL) {
				vcnt = 0;
				vsave();
				vrepaint(cursor);
			} else if (i == 3)
				vredraw(WTOP);
			else
				vsync(WTOP);
			vfixcurs();
		}

		/*
		 * Gobble up counts and named buffer specifications.
		 */
		for (;;) {
looptop:
#ifdef MDEBUG
			if (trace)
				fprintf(trace, "pc=%c",peekkey());
#endif
			if (isdigit(peekkey()) && peekkey() != '0') {
				hadcnt = 1;
				cnt = vgetcnt();
				forbid (cnt <= 0);
			}
			if (peekkey() != '"')
				break;
			ignore(getkey()), c = getkey();
			/*
			 * Buffer names be letters or digits.
			 * But not '0' as that is the source of
			 * an 'empty' named buffer spec in the routine
			 * kshift (see ex_temp.c).
			 */
			forbid (c == '0' || !isalpha(c) && !isdigit(c));
			vreg = c;
		}
reread:
		/*
		 * Come to reread from below after some macro expansions.
		 * The call to map allows use of function key pads
		 * by performing a terminal dependent mapping of inputs.
		 */
#ifdef MDEBUG
		if (trace)
			fprintf(trace,"pcb=%c,",peekkey());
#endif
		op = getkey();
		maphopcnt = 0;
		do {
			/*
			 * Keep mapping the char as long as it changes.
			 * This allows for double mappings, e.g., q to #,
			 * #1 to something else.
			 */
			c = op;
			op = map(c,arrows);
#ifdef MDEBUG
			if (trace)
				fprintf(trace,"pca=%c,",c);
#endif
			/*
			 * Maybe the mapped to char is a count. If so, we have
			 * to go back to the "for" to interpret it. Likewise
			 * for a buffer name.
			 */
			if ((isdigit(c) && c!='0') || c == '"') {
				ungetkey(c);
				goto looptop;
			}
			if (!value(REMAP)) {
				c = op;
				break;
			}
			if (++maphopcnt > 256)
				error("Infinite macro loop");
		} while (c != op);

		/*
		 * Begin to build an image of this command for possible
		 * later repeat in the buffer workcmd.  It will be copied
		 * to lastcmd by the routine setLAST
		 * if/when completely specified.
		 */
		lastcp = workcmd;
		if (!vglobp)
			*lastcp++ = c;

		/*
		 * First level command decode.
		 */
		switch (c) {

		/*
		 * ^L		Clear screen e.g. after transmission error.
		 */

		/*
		 * ^R		Retype screen, getting rid of @ lines.
		 *		If in open, equivalent to ^L.
		 *		On terminals where the right arrow key sends
		 *		^L we make ^R act like ^L, since there is no
		 *		way to get ^L.  These terminals (adm31, tvi)
		 *		are intelligent so ^R is useless.  Soroc
		 *		will probably foul this up, but nobody has
		 *		one of them.
		 */
		case CTRL(l):
		case CTRL(r):
			if (c == CTRL(l) || (KR && *KR==CTRL(l))) {
				vclear();
				vdirty(0, vcnt);
			}
			if (state != VISUAL) {
				/*
				 * Get a clean line, throw away the
				 * memory of what is displayed now,
				 * and move back onto the current line.
				 */
				vclean();
				vcnt = 0;
				vmoveto(dot, cursor, 0);
				continue;
			}
			vredraw(WTOP);
			/*
			 * Weird glitch -- when we enter visual
			 * in a very small window we may end up with
			 * no lines on the screen because the line
			 * at the top is too long.  This forces the screen
			 * to be expanded to make room for it (after
			 * we have printed @'s ick showing we goofed).
			 */
			if (vcnt == 0)
				vrepaint(cursor);
			vfixcurs();
			continue;

		/*
		 * $		Escape just cancels the current command
		 *		with a little feedback.
		 */
		case ESCAPE:
			beep();
			continue;

		/*
		 * @   		Macros. Bring in the macro and put it
		 *		in vmacbuf, point vglobp there and punt.
		 */
		 case '@':
			c = getesc();
			if (c == 0)
				continue;
			if (c == '@')
				c = lastmac;
			if (isupper(c))
				c = tolower(c);
			forbid(!islower(c));
			lastmac = c;
			vsave();
			CATCH
				char tmpbuf[BUFSIZ];

				regbuf(c,tmpbuf,sizeof(vmacbuf));
				macpush(tmpbuf, 1);
			ONERR
				lastmac = 0;
				splitw = 0;
				getDOT();
				vrepaint(cursor);
				continue;
			ENDCATCH
			vmacp = vmacbuf;
			goto reread;

		/*
		 * .		Repeat the last (modifying) open/visual command.
		 */
		case '.':
			/*
			 * Check that there was a last command, and
			 * take its count and named buffer unless they
			 * were given anew.  Special case if last command
			 * referenced a numeric named buffer -- increment
			 * the number and go to a named buffer again.
			 * This allows a sequence like "1pu.u.u...
			 * to successively look for stuff in the kill chain
			 * much as one does in EMACS with C-Y and M-Y.
			 */
			forbid (lastcmd[0] == 0);
			if (hadcnt)
				lastcnt = cnt;
			if (vreg)
				lastreg = vreg;
			else if (isdigit(lastreg) && lastreg < '9')
				lastreg++;
			vreg = lastreg;
			cnt = lastcnt;
			hadcnt = lasthad;
			vglobp = lastcmd;
			goto reread;

		/*
		 * ^U		Scroll up.  A count sticks around for
		 *		future scrolls as the scroll amount.
		 *		Attempt to hold the indentation from the
		 *		top of the screen (in logical lines).
		 *
		 * BUG:		A ^U near the bottom of the screen
		 *		on a dumb terminal (which can't roll back)
		 *		causes the screen to be cleared and then
		 *		redrawn almost as it was.  In this case
		 *		one should simply move the cursor.
		 */
		case CTRL(u):
			if (hadcnt)
				vSCROLL = cnt;
			cnt = vSCROLL;
			if (state == VISUAL)
				ind = vcline, cnt += ind;
			else
				ind = 0;
			vmoving = 0;
			vup(cnt, ind, 1);
			vnline(NOSTR);
			continue;

		/*
		 * ^D		Scroll down.  Like scroll up.
		 */
		case CTRL(d):
#ifdef TRACE
		if (trace)
			fprintf(trace, "before vdown in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
			if (hadcnt)
				vSCROLL = cnt;
			cnt = vSCROLL;
			if (state == VISUAL)
				ind = vcnt - vcline - 1, cnt += ind;
			else
				ind = 0;
			vmoving = 0;
			vdown(cnt, ind, 1);
#ifdef TRACE
		if (trace)
			fprintf(trace, "before vnline in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
			vnline(NOSTR);
#ifdef TRACE
		if (trace)
			fprintf(trace, "after vnline in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
			continue;

		/*
		 * ^E		Glitch the screen down (one) line.
		 *		Cursor left on same line in file.
		 */
		case CTRL(e):
			if (state != VISUAL)
				continue;
			if (!hadcnt)
				cnt = 1;
			/* Bottom line of file already on screen */
			forbid(lineDOL()-lineDOT() <= vcnt-1-vcline);
			ind = vcnt - vcline - 1 + cnt;
			vdown(ind, ind, 1);
			vnline(cursor);
			continue;

		/*
		 * ^Y		Like ^E but up
		 */
		case CTRL(y):
			if (state != VISUAL)
				continue;
			if (!hadcnt)
				cnt = 1;
			forbid(lineDOT()-1<=vcline); /* line 1 already there */
			ind = vcline + cnt;
			vup(ind, ind, 1);
			vnline(cursor);
			continue;


		/*
		 * m		Mark position in mark register given
		 *		by following letter.  Return is
		 *		accomplished via ' or `; former
		 *		to beginning of line where mark
		 *		was set, latter to column where marked.
		 */
		case 'm':
			/*
			 * Getesc is generally used when a character
			 * is read as a latter part of a command
			 * to allow one to hit rubout/escape to cancel
			 * what you have typed so far.  These characters
			 * are mapped to 0 by the subroutine.
			 */
			c = getesc();
			if (c == 0)
				continue;

			/*
			 * Markreg checks that argument is a letter
			 * and also maps ' and ` to the end of the range
			 * to allow '' or `` to reference the previous
			 * context mark.
			 */
			c = markreg(c);
			forbid (c == 0);
			vsave();
			names[c - 'a'] = (*dot &~ 01);
			ncols[c - 'a'] = cursor;
			anymarks = 1;
			continue;

		/*
		 * ^F		Window forwards, with 2 lines of continuity.
		 *		Count repeats.
		 */
		case CTRL(f):
			vsave();
			if (vcnt > 2) {
				addr = dot + (vcnt - vcline) - 2 + (cnt-1)*basWLINES;
				forbid(addr > dol);
				dot = addr;
				vcnt = vcline = 0;
			}
			vzop(0, 0, '+');
			continue;

		/*
		 * ^B		Window backwards, with 2 lines of continuity.
		 *		Inverse of ^F.
		 */
		case CTRL(b):
			vsave();
			if (one + vcline != dot && vcnt > 2) {
				addr = dot - vcline - 2 + (cnt-1)*basWLINES;
				forbid (addr <= zero);
				dot = addr;
				vcnt = vcline = 0;
			}
			vzop(0, 0, '^');
			continue;

		/*
		 * z		Screen adjustment, taking a following character:
		 *			z<CR>		current line to top
		 *			z<NL>		like z<CR>
		 *			z-		current line to bottom
		 *		also z+, z^ like ^F and ^B.
		 *		A preceding count is line to use rather
		 *		than current line.  A count between z and
		 *		specifier character changes the screen size
		 *		for the redraw.
		 *
		 */
		case 'z':
			if (state == VISUAL) {
				i = vgetcnt();
				if (i > 0)
					vsetsiz(i);
				c = getesc();
				if (c == 0)
					continue;
			}
			vsave();
			vzop(hadcnt, cnt, c);
			continue;

		/*
		 * Y		Yank lines, abbreviation for y_ or yy.
		 *		Yanked lines can be put later if no
		 *		changes intervene, or can be put in named
		 *		buffers and put anytime in this session.
		 */
		case 'Y':
			ungetkey('_');
			c = 'y';
			break;

		/*
		 * J		Join lines, 2 by default.  Count is number
		 *		of lines to join (no join operator sorry.)
		 */
		case 'J':
			forbid (dot == dol);
			if (cnt == 1)
				cnt = 2;
			if (cnt > (i = dol - dot + 1))
				cnt = i;
			vsave();
			vmacchng(1);
			setLAST();
			cursor = strend(linebuf);
			vremote(cnt, join, 0);
			notenam = "join";
			vmoving = 0;
			killU();
			vreplace(vcline, cnt, 1);
			if (!*cursor && cursor > linebuf)
				cursor--;
			if (notecnt == 2)
				notecnt = 0;
			vrepaint(cursor);
			continue;

		/*
		 * S		Substitute text for whole lines, abbrev for c_.
		 *		Count is number of lines to change.
		 */
		case 'S':
			ungetkey('_');
			c = 'c';
			break;

		/*
		 * O		Create a new line above current and accept new
		 *		input text, to an escape, there.
		 *		A count specifies, for dumb terminals when
		 *		slowopen is not set, the number of physical
		 *		line space to open on the screen.
		 *
		 * o		Like O, but opens lines below.
		 */
		case 'O':
		case 'o':
			vmacchng(1);
			voOpen(c, cnt);
			continue;

		/*
		 * C		Change text to end of line, short for c$.
		 */
		case 'C':
			if (*cursor) {
				ungetkey('$'), c = 'c';
				break;
			}
			goto appnd;

		/*
		 * ~	Switch case of letter under cursor
		 */
		case '~':
			{
				char mbuf[4];
				setLAST();
				mbuf[0] = 'r';
				mbuf[1] = *cursor;
				mbuf[2] = cursor[1]==0 ? 0 : ' ';
				mbuf[3] = 0;
				if (isalpha(mbuf[1]))
					mbuf[1] ^= ' ';	/* toggle the case */
				macpush(mbuf, 1);
			}
			continue;


		/*
		 * A		Append at end of line, short for $a.
		 */
		case 'A':
			operate('$', 1);
appnd:
			c = 'a';
			/* fall into ... */

		/*
		 * a		Appends text after cursor.  Text can continue
		 *		through arbitrary number of lines.
		 */
		case 'a':
			if (*cursor) {
				if (state == HARDOPEN)
					putchar(*cursor);
				cursor++;
			}
			goto insrt;

		/*
		 * I		Insert at beginning of whitespace of line,
		 *		short for ^i.
		 */
		case 'I':
			operate('^', 1);
			c = 'i';
			/* fall into ... */

		/*
		 * R		Replace characters, one for one, by input
		 *		(logically), like repeated r commands.
		 *
		 * BUG:		This is like the typeover mode of many other
		 *		editors, and is only rarely useful.  Its
		 *		implementation is a hack in a low level
		 *		routine and it doesn't work very well, e.g.
		 *		you can't move around within a R, etc.
		 */
		case 'R':
			/* fall into... */

		/*
		 * i		Insert text to an escape in the buffer.
		 *		Text is arbitrary.  This command reminds of
		 *		the i command in bare teco.
		 */
		case 'i':
insrt:
			/*
			 * Common code for all the insertion commands.
			 * Save for redo, position cursor, prepare for append
			 * at command and in visual undo.  Note that nothing
			 * is doomed, unless R when all is, and save the
			 * current line in a the undo temporary buffer.
			 */
			vmacchng(1);
			setLAST();
			vcursat(cursor);
			prepapp();
			vnoapp();
			doomed = c == 'R' ? 10000 : 0;
			if(FIXUNDO)
				vundkind = VCHNG;
			vmoving = 0;
			CP(vutmp, linebuf);

			/*
			 * If this is a repeated command, then suppress
			 * fake insert mode on dumb terminals which looks
			 * ridiculous and wastes lots of time even at 9600B.
			 */
			if (vglobp)
				hold = HOLDQIK;
			vappend(c, cnt, 0);
			continue;

		/*
		 * ^?		An attention, normally a ^?, just beeps.
		 *		If you are a vi command within ex, then
		 *		two ATTN's will drop you back to command mode.
		 */
		case ATTN:
			beep();
			if (initev || peekkey() != ATTN)
				continue;
			/* fall into... */

		/*
		 * ^\		A quit always gets command mode.
		 */
		case QUIT:
			/*
			 * Have to be careful if we were called
			 *	g/xxx/vi
			 * since a return will just start up again.
			 * So we simulate an interrupt.
			 */
			if (inglobal)
				onintr();
			/* fall into... */

#ifdef notdef
		/*
		 * q		Quit back to command mode, unless called as
		 *		vi on command line in which case dont do it
		 */
		case 'q':	/* quit */
			if (initev) {
				vsave();
				CATCH
					error("Q gets ex command mode, :q leaves vi");
				ENDCATCH
				splitw = 0;
				getDOT();
				vrepaint(cursor);
				continue;
			}
#endif
			/* fall into... */

		/*
		 * Q		Is like q, but always gets to command mode
		 *		even if command line invocation was as vi.
		 */
		case 'Q':
			vsave();
			/*
			 * If we are in the middle of a macro, throw away
			 * the rest and fix up undo.
			 * This code copied from getbr().
			 */
			if (vmacp) {
				vmacp = 0;
				if (inopen == -1)	/* don't screw up undo for esc esc */
					vundkind = VMANY;
				inopen = 1;	/* restore old setting now that macro done */
			}
			return;


		/*
		 * ZZ		Like :x
		 */
		 case 'Z':
			forbid(getkey() != 'Z');
			oglobp = globp;
			globp = "x";
			vclrech(0);
			goto gogo;
			
		/*
		 * P		Put back text before cursor or before current
		 *		line.  If text was whole lines goes back
		 *		as whole lines.  If part of a single line
		 *		or parts of whole lines splits up current
		 *		line to form many new lines.
		 *		May specify a named buffer, or the delete
		 *		saving buffers 1-9.
		 *
		 * p		Like P but after rather than before.
		 */
		case 'P':
		case 'p':
			vmoving = 0;
#ifdef notdef
			forbid (!vreg && value(UNDOMACRO) && inopen < 0);
#endif
			/*
			 * If previous delete was partial line, use an
			 * append or insert to put it back so as to
			 * use insert mode on intelligent terminals.
			 */
			if (!vreg && DEL[0]) {
				forbid ((DEL[0] & (QUOTE|TRIM)) == OVERBUF);
				vglobp = DEL;
				ungetkey(c == 'p' ? 'a' : 'i');
				goto reread;
			}

			/*
			 * If a register wasn't specified, then make
			 * sure there is something to put back.
			 */
			forbid (!vreg && unddol == dol);
			/*
			 * If we just did a macro the whole buffer is in
			 * the undo save area.  We don't want to put THAT.
			 */
			forbid (vundkind == VMANY && undkind==UNDALL);
			vsave();
			vmacchng(1);
			setLAST();
			i = 0;
			if (vreg && partreg(vreg) || !vreg && pkill[0]) {
				/*
				 * Restoring multiple lines which were partial
				 * lines; will leave cursor in middle
				 * of line after shoving restored text in to
				 * split the current line.
				 */
				i++;
				if (c == 'p' && *cursor)
					cursor++;
			} else {
				/*
				 * In whole line case, have to back up dot
				 * for P; also want to clear cursor so
				 * cursor will eventually be positioned
				 * at the beginning of the first put line.
				 */
				cursor = 0;
				if (c == 'P') {
					dot--, vcline--;
					c = 'p';
				}
			}
			killU();

			/*
			 * The call to putreg can potentially
			 * bomb since there may be nothing in a named buffer.
			 * We thus put a catch in here.  If we didn't and
			 * there was an error we would end up in command mode.
			 */
			addr = dol;	/* old dol */
			CATCH
				vremote(1, vreg ? putreg : put, vreg);
			ONERR
				if (vreg == -1) {
					splitw = 0;
					if (op == 'P')
						dot++, vcline++;
					goto pfixup;
				}
			ENDCATCH
			splitw = 0;
			nlput = dol - addr + 1;
			if (!i) {
				/*
				 * Increment undap1, undap2 to make up
				 * for their incorrect initialization in the
				 * routine vremote before calling put/putreg.
				 */
				if (FIXUNDO)
					undap1++, undap2++;
				vcline++;
				nlput--;

				/*
				 * After a put want current line first line,
				 * and dot was made the last line put in code
				 * run so far.  This is why we increment vcline
				 * above and decrease dot here.
				 */
				dot -= nlput - 1;
			}
#ifdef TRACE
			if (trace)
				fprintf(trace, "vreplace(%d, %d, %d), undap1=%d, undap2=%d, dot=%d\n", vcline, i, nlput, lineno(undap1), lineno(undap2), lineno(dot));
#endif
			vreplace(vcline, i, nlput);
			if (state != VISUAL) {
				/*
				 * Special case in open mode.
				 * Force action on the screen when a single
				 * line is put even if it is identical to
				 * the current line, e.g. on YP; otherwise
				 * you can't tell anything happened.
				 */
				vjumpto(dot, cursor, '.');
				continue;
			}
pfixup:
			vrepaint(cursor);
			vfixcurs();
			continue;

		/*
		 * ^^		Return to previous file.
		 *		Like a :e #, and thus can be used after a
		 *		"No Write" diagnostic.
		 */
		case CTRL(^):
			forbid (hadcnt);
			vsave();
			ckaw();
			oglobp = globp;
			if (value(AUTOWRITE))
				globp = "e! #";
			else
				globp = "e #";
			goto gogo;

		/*
		 * ^]		Takes word after cursor as tag, and then does
		 *		tag command.  Read ``go right to''.
		 */
		case CTRL(]):
			grabtag();
			oglobp = globp;
			globp = "tag";
			goto gogo;

		/*
		 * &		Like :&
		 */
		 case '&':
			oglobp = globp;
			globp = "&";
			goto gogo;
			
		/*
		 * ^G		Bring up a status line at the bottom of
		 *		the screen, like a :file command.
		 *
		 * BUG:		Was ^S but doesn't work in cbreak mode
		 */
		case CTRL(g):
			oglobp = globp;
			globp = "file";
gogo:
			addr = dot;
			vsave();
			goto doinit;

#ifdef SIGTSTP
		/*
		 * ^Z:	suspend editor session and temporarily return
		 * 	to shell.  Only works with Berkeley/IIASA process
		 *	control in kernel.
		 */
		case CTRL(z):
			forbid(dosusp == 0 || !ldisc);
			vsave();
			oglobp = globp;
			globp = "stop";
			goto gogo;
#endif

		/*
		 * :		Read a command from the echo area and
		 *		execute it in command mode.
		 */
		case ':':
			forbid (hadcnt);
			vsave();
			i = tchng;
			addr = dot;
			if (readecho(c)) {
				esave[0] = 0;
				goto fixup;
			}
			getDOT();
			/*
			 * Use the visual undo buffer to store the global
			 * string for command mode, since it is idle right now.
			 */
			oglobp = globp; strcpy(vutmp, genbuf+1); globp = vutmp;
doinit:
			esave[0] = 0;
			fixech();

			/*
			 * Have to finagle around not to lose last
			 * character after this command (when run from ex
			 * command mode).  This is clumsy.
			 */
			d = peekc; ungetchar(0);
			if (shouldpo) {
				/*
				 * So after a "Hit return..." ":", we do
				 * another "Hit return..." the next time
				 */
				pofix();
				shouldpo = 0;
			}
			CATCH
				/*
				 * Save old values of options so we can
				 * notice when they change; switch into
				 * cooked mode so we are interruptible.
				 */
				onumber = value(NUMBER);
				olist = value(LIST);
				OPline = Pline;
				OPutchar = Putchar;
#ifndef CBREAK
				vcook();
#endif
				commands(1, 1);
				if (dot == zero && dol > zero)
					dot = one;
#ifndef CBREAK
				vraw();
#endif
			ONERR
#ifndef CBREAK
				vraw();
#endif
				copy(esave, vtube[WECHO], TUBECOLS);
			ENDCATCH
			fixol();
			Pline = OPline;
			Putchar = OPutchar;
			ungetchar(d);
			globp = oglobp;

			/*
			 * If we ended up with no lines in the buffer, make
			 * a line, and don't consider the buffer changed.
			 */
			if (dot == zero) {
				fixzero();
				sync();
			}
			splitw = 0;

			/*
			 * Special case: did list/number options change?
			 */
			if (onumber != value(NUMBER))
				setnumb(value(NUMBER));
			if (olist != value(LIST))
				setlist(value(LIST));

fixup:
			/*
			 * If a change occurred, other than
			 * a write which clears changes, then
			 * we should allow an undo even if .
			 * didn't move.
			 *
			 * BUG: You can make this wrong by
			 * tricking around with multiple commands
			 * on one line of : escape, and including
			 * a write command there, but its not
			 * worth worrying about.
			 */
			if (FIXUNDO && tchng && tchng != i)
				vundkind = VMANY, cursor = 0;

			/*
			 * If we are about to do another :, hold off
			 * updating of screen.
			 */
			if (vcnt < 0 && Peekkey == ':') {
				getDOT();
				shouldpo = 1;
				continue;
			}
			shouldpo = 0;

			/*
			 * In the case where the file being edited is
			 * new; e.g. if the initial state hasn't been
			 * saved yet, then do so now.
			 */
			if (unddol == truedol) {
				vundkind = VNONE;
				Vlines = lineDOL();
				if (!inglobal)
					savevis();
				addr = zero;
				vcnt = 0;
				if (esave[0] == 0)
					copy(esave, vtube[WECHO], TUBECOLS);
			}

			/*
			 * If the current line moved reset the cursor position.
			 */
			if (dot != addr) {
				vmoving = 0;
				cursor = 0;
			}

			/*
			 * If current line is not on screen or if we are
			 * in open mode and . moved, then redraw.
			 */
			i = vcline + (dot - addr);
			if (i < 0 || i >= vcnt && i >= -vcnt || state != VISUAL && dot != addr) {
				if (state == CRTOPEN)
					vup1();
				if (vcnt > 0)
					vcnt = 0;
				vjumpto(dot, (char *) 0, '.');
			} else {
				/*
				 * Current line IS on screen.
				 * If we did a [Hit return...] then
				 * restore vcnt and clear screen if in visual
				 */
				vcline = i;
				if (vcnt < 0) {
					vcnt = -vcnt;
					if (state == VISUAL)
						vclear();
					else if (state == CRTOPEN) {
						vcnt = 0;
					}
				}

				/*
				 * Limit max value of vcnt based on $
				 */
				i = vcline + lineDOL() - lineDOT() + 1;
				if (i < vcnt)
					vcnt = i;
				
				/*
				 * Dirty and repaint.
				 */
				vdirty(0, LINES);
				vrepaint(cursor);
			}

			/*
			 * If in visual, put back the echo area
			 * if it was clobberred.
			 */
			if (state == VISUAL) {
				int sdc = destcol, sdl = destline;

				splitw++;
				vigoto(WECHO, 0);
				for (i = 0; i < TUBECOLS - 1; i++) {
					if (esave[i] == 0)
						break;
					vputchar(esave[i]);
				}
				splitw = 0;
				vgoto(sdl, sdc);
			}
			continue;

		/*
		 * u		undo the last changing command.
		 */
		case 'u':
			vundo(1);
			continue;

		/*
		 * U		restore current line to initial state.
		 */
		case 'U':
			vUndo();
			continue;

fonfon:
			beep();
			vmacp = 0;
			inopen = 1;	/* might have been -1 */
			continue;
		}

		/*
		 * Rest of commands are decoded by the operate
		 * routine.
		 */
		operate(c, cnt);
	}
}
Exemplo n.º 5
0
/*
 * Parse file name for command encoded by comm.
 * If comm is E then command is doomed and we are
 * parsing just so user won't have to retype the name.
 */
void
filename(int comm)
{
	register int c = comm, d;
	register int i;

	d = ex_getchar();
	if (endcmd(d)) {
		if (savedfile[0] == 0 && comm != 'f')
			error("No file|No current filename");
		CP(file, savedfile);
		wasalt = (isalt > 0) ? isalt-1 : 0;
		isalt = 0;
		oldadot = altdot;
		if (c == 'e' || c == 'E')
			altdot = lineDOT();
		if (d == EOF)
			ungetchar(d);
	} else {
		ungetchar(d);
		getone();
		eol();
		if (savedfile[0] == 0 && c != 'E' && c != 'e') {
			c = 'e';
			edited = 0;
		}
		wasalt = strcmp(file, altfile) == 0;
		oldadot = altdot;
		switch (c) {

		case 'f':
			edited = 0;
			/* fall into ... */

		case 'e':
			if (savedfile[0]) {
				altdot = lineDOT();
				CP(altfile, savedfile);
			}
			CP(savedfile, file);
			break;

		default:
			if (file[0]) {
				if (c != 'E')
					altdot = lineDOT();
				CP(altfile, file);
			}
			break;
		}
	}
	if ((hush && comm != 'f') || comm == 'E')
		return;
	if (file[0] != 0) {
		lprintf("\"%s\"", file);
		if (comm == 'f') {
			if (value(READONLY))
				ex_printf(" [Read only]");
			if (!edited)
				ex_printf(" [Not edited]");
			if (tchng)
				ex_printf(" [Modified]");
		}
		flush();
	} else
		ex_printf("No file ");
	if (comm == 'f') {
		if (!(i = lineDOL()))
			i++;
		ex_printf(" line %d of %d --%ld%%--", lineDOT(), lineDOL(),
		    (long) 100 * lineDOT() / i);
	}
}
Exemplo n.º 6
0
/*
 * The guts of a sync.  Similar to redraw but
 * just less ambitous.
 */
void 
vsync1(register int p)
{
	register int l;
	char temp[LBSIZE];
	register struct vlinfo *vp = &vlinfo[0];
	short oldhold = hold;

#ifdef ADEBUG
	if (trace)
		tfixnl(), fprintf(trace, "vsync1(%d)\n", p), tvliny();
#endif
	if (holdupd) {
		if (holdupd < 3)
			holdupd = 2;
		return;
	}
	if (state == HARDOPEN || splitw)
		return;
	vscrap();
	CP(temp, linebuf);
	if (vcnt == 0)
		LINE(0) = WTOP;
	l = 0;
	while (l < vcnt && vp->vliny < p)
		l++, vp++;
	heldech = 0;
	hold |= HOLDECH;
	while (p <= WBOT && Peekkey != ATTN) {
		/*
		 * Want to put a line here if not in visual and first line
		 * or if there are lies left and this line starts before
		 * the current line, or if this line is piled under the
		 * next line (vreplace does this and we undo it).
		 */
		if (l == 0 && state != VISUAL ||
		    (l < vcnt && (vp->vliny <= p || vp[0].vliny == vp[1].vliny))) {
			if (l == 0 || vp->vliny < p || (vp->vflags & VDIRT)) {
				if (l == vcline)
					strcLIN(temp);
				else
					getline(dot[l - vcline]);
				/*
				 * Be careful that a long line doesn't cause the
				 * screen to shoot up.
				 */
				if (l != vcline && (vp->vflags & VDIRT)) {
					vp->vdepth = vdepth();
					vp->vflags &= ~VDIRT;
					if (p + vp->vdepth - 1 > WBOT)
						break;
				}
				vreopen(p, lineDOT() + (l - vcline), l);
			}
			p = vp->vliny + vp->vdepth;
			vp++;
			l++;
		} else
			/*
			 * A physical line between logical lines,
			 * so we settle for an @ at the beginning.
			 */
			vclrlin(p, dot + (l - vcline)), p++;
	}
	strcLIN(temp);
	hold = oldhold;
	if (heldech)
		vclrech(0);
}
Exemplo n.º 7
0
/*ARGSUSED*/
void 
vmove(int unused)
{
	register int cnt;

	if (wdot) {
		if (wdot < one || wdot > dol) {
			beep();
			return;
		}
		cnt = wdot - dot;
		wdot = NOLINE;
		if (cnt)
			killU();
		vupdown(cnt, wcursor);
		return;
	}

	/*
	 * When we move onto a new line, save information for U undo.
	 */
	if (vUNDdot != dot) {
		vUNDsav = *dot;
		vUNDcurs = wcursor;
		vUNDdot = dot;
	}

	/*
	 * In hardcopy open, type characters to left of cursor
	 * on new line, or back cursor up if its to left of where we are.
	 * In any case if the current line is ``rubbled'' i.e. has trashy
	 * looking overstrikes on it or \'s from deletes, we reprint
	 * so it is more comprehensible (and also because we can't work
	 * if we let it get more out of sync since column() won't work right.
	 */
	if (state == HARDOPEN) {
		register char *cp;
		if (rubble) {
			register int c;
			int oldhold = hold;

			sethard();
			cp = wcursor;
			c = *cp;
			*cp = 0;
			hold |= HOLDDOL;
			vreopen(WTOP, lineDOT(), vcline);
			hold = oldhold;
			*cp = c;
		} else if (wcursor > cursor) {
			vfixcurs();
			for (cp = cursor; *cp && cp < wcursor;) {
				int	c, n;
				nextc(c, cp, n);
				cp += n;
				c &= TRIM;
				putchar(c ? c : ' ');
			}
		}
	}
	vsetcurs(wcursor);
}
Exemplo n.º 8
0
/*
 * Parse file name for command encoded by comm.
 * If comm is E then command is doomed and we are
 * parsing just so user won't have to retype the name.
 */
void
filename(int comm)
{
	int c = comm, d;
	int i;

	d = getchar();
	if (endcmd(d)) {
		if (savedfile[0] == 0 && comm != 'f')
			error(value(vi_TERSE) ? gettext("No file") :
gettext("No current filename"));
		CP(file, savedfile);
		wasalt = (isalt > 0) ? isalt-1 : 0;
		isalt = 0;
		oldadot = altdot;
		if (c == 'e' || c == 'E')
			altdot = lineDOT();
		if (d == EOF)
			ungetchar(d);
	} else {
		ungetchar(d);
		getone();
		eol();
		if (savedfile[0] == 0 && c != 'E' && c != 'e') {
			c = 'e';
			edited = 0;
		}
		wasalt = strcmp(file, altfile) == 0;
		oldadot = altdot;
		switch (c) {

		case 'f':
			edited = 0;
			/* FALLTHROUGH */

		case 'e':
			if (savedfile[0]) {
				altdot = lineDOT();
				CP(altfile, savedfile);
			}
			CP(savedfile, file);
			break;

		default:
			if (file[0]) {
				if (c != 'E')
					altdot = lineDOT();
				CP(altfile, file);
			}
			break;
		}
	}
	if (hush && comm != 'f' || comm == 'E')
		return;
	if (file[0] != 0) {
		lprintf("\"%s\"", file);
		if (comm == 'f') {
			if (value(vi_READONLY))
				viprintf(gettext(" [Read only]"));
			if (!edited)
				viprintf(gettext(" [Not edited]"));
			if (tchng)
				viprintf(gettext(" [Modified]"));
		}
		flush();
	} else
		viprintf(gettext("No file "));
	if (comm == 'f') {
		if (!(i = lineDOL()))
			i++;
		/*
		 * TRANSLATION_NOTE
		 *	Reference order of arguments must not
		 *	be changed using '%digit$', since vi's
		 *	viprintf() does not support it.
		 */
		viprintf(gettext(" line %d of %d --%ld%%--"), lineDOT(),
		    lineDOL(), (long)(100 * lineDOT() / i));
	}
}
Exemplo n.º 9
0
void
vappend(int ch, int cnt, int indent)
{
	int i;
	unsigned char *gcursor;
	bool escape;
	int repcnt, savedoomed;
	short oldhold = hold;
	int savecnt = cnt;
	line *startsrcline;
	int startsrccol, endsrccol;
	int gotNL = 0;
	int imultlinecnt = 0;
	int omultlinecnt = 0;

	if ((savecnt > 1) && (ch == 'o' || ch == 'O')) {
		omultlinecnt = 1;
	}
#ifdef XPG6
	if ((savecnt > 1) && (ch == 'a' || ch == 'A' || ch == 'i' || ch == 'I'))
		imultlinecnt = 1;
#endif /* XPG6 */

	/*
	 * Before a move in hardopen when the line is dirty
	 * or we are in the middle of the printed representation,
	 * we retype the line to the left of the cursor so the
	 * insert looks clean.
	 */

	if (ch != 'o' && state == HARDOPEN && (rubble || !ateopr())) {
		rubble = 1;
		gcursor = cursor;
		i = *gcursor;
		*gcursor = ' ';
		wcursor = gcursor;
		(void) vmove();
		*gcursor = i;
	}
	/*
	 * If vrep() passed indent = 0, this is the 'r' command,
	 * so don't autoindent until the last char.
	 */
	vaifirst = indent == 0;

	/*
	 * Handle replace character by (eventually)
	 * limiting the number of input characters allowed
	 * in the vgetline routine.
	 */
	if (ch == 'r')
		repcnt = 2;
	else
		repcnt = 0;

	/*
	 * If an autoindent is specified, then
	 * generate a mixture of blanks to tabs to implement
	 * it and place the cursor after the indent.
	 * Text read by the vgetline routine will be placed in genbuf,
	 * so the indent is generated there.
	 */
	if (value(vi_AUTOINDENT) && indent != 0) {
		unsigned char x;
		gcursor = genindent(indent);
		*gcursor = 0;
		vgotoCL(nqcolumn(lastchr(linebuf, cursor), genbuf)); 
	} else {
		gcursor = genbuf;
		*gcursor = 0;
		if (ch == 'o')
			vfixcurs();
	}

	/*
	 * Prepare for undo.  Pointers delimit inserted portion of line.
	 */
	vUA1 = vUA2 = cursor;

	/*
	 * If we are not in a repeated command and a ^@ comes in
	 * then this means the previous inserted text.
	 * If there is none or it was too long to be saved,
	 * then beep() and also arrange to undo any damage done
	 * so far (e.g. if we are a change.)
	 */
	switch (ch) {
	case 'r':
		break;
	case 'a':
		/*
		 * TRANSLATION_NOTE
		 *	"A" is a terse mode message corresponding to
		 *	"APPEND MODE".
		 *	Translated message of "A" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("A"));
		} else {
			vshowmode(gettext("APPEND MODE"));
		}
		break;
	case 's':
		/*
		 * TRANSLATION_NOTE
		 *	"S" is a terse mode message corresponding to
		 *	"SUBSTITUTE MODE".
		 *	Translated message of "S" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("S"));
		} else {
			vshowmode(gettext("SUBSTITUTE MODE"));
		}
		break;
	case 'c':
		/*
		 * TRANSLATION_NOTE
		 *	"C" is a terse mode message corresponding to
		 *	"CHANGE MODE".
		 *	Translated message of "C" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("C"));
		} else {
			vshowmode(gettext("CHANGE MODE"));
		}
		break;
	case 'R':
		/*
		 * TRANSLATION_NOTE
		 *	"R" is a terse mode message corresponding to
		 *	"REPLACE MODE".
		 *	Translated message of "R" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("R"));
		} else {
			vshowmode(gettext("REPLACE MODE"));
		}
		break;
	case 'o':
		/*
		 * TRANSLATION_NOTE
		 *	"O" is a terse mode message corresponding to
		 *	"OPEN MODE".
		 *	Translated message of "O" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("O"));
		} else {
			vshowmode(gettext("OPEN MODE"));
		}
		break;
	case 'i':
		/*
		 * TRANSLATION_NOTE
		 *	"I" is a terse mode message corresponding to
		 *	"INSERT MODE" and the following "INPUT MODE".
		 *	Translated message of "I" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("I"));
		} else {
			vshowmode(gettext("INSERT MODE"));
		}
		break;
	default:
		/*
		 * TRANSLATION_NOTE
		 *	"I" is a terse mode message corresponding to
		 *	"INPUT MODE" and the previous "INSERT MODE".
		 *	Translated message of "I" must be 1 character (not byte).
		 *	Or, just leave it.
		 */
		if (value(vi_TERSE)) {
			vshowmode(gettext("I"));
		} else {
			vshowmode(gettext("INPUT MODE"));
		}
	}
	ixlatctl(1);
	if ((vglobp && *vglobp == 0) || peekbr()) {
		if (INS[128] == 0200) {
			(void) beep();
			if (!splitw)
				ungetkey('u');
			doomed = 0;
			hold = oldhold;
			return;
		}
		/*
		 * Unread input from INS.
		 * An escape will be generated at end of string.
		 * Hold off n^^2 type update on dumb terminals.
		 */
		vglobp = INS;
		inscdcnt = INSCDCNT;
		hold |= HOLDQIK;
	} else if (vglobp == 0) {
		/*
		 * Not a repeated command, get
		 * a new inserted text for repeat.
		 */
		INS[0] = 0;
		INS[128] = 0;
		INSCDCNT = 0;
	}

	/*
	 * For wrapmargin to hack away second space after a '.'
	 * when the first space caused a line break we keep
	 * track that this happened in gobblebl, which says
	 * to gobble up a blank silently.
	 */
	gobblebl = 0;

	startsrcline = dot;
	startsrccol = cursor - linebuf;

	/*
	 * Text gathering loop.
	 * New text goes into genbuf starting at gcursor.
	 * cursor preserves place in linebuf where text will eventually go.
	 */
	if (*cursor == 0 || state == CRTOPEN)
		hold |= HOLDROL;
	for (;;) {
		if (ch == 'r' && repcnt == 0)
			escape = 0;
		else {
			ixlatctl(1);
			/*
			 * When vgetline() returns, gcursor is
			 * pointing to '\0' and vgetline() has
			 * read an ESCAPE or NL.
			 */
			gcursor = vgetline(repcnt, gcursor, &escape, ch);
			if (escape == '\n') {
				gotNL = 1;
#ifdef XPG6
				if (ch == 'r') {
					/*
					 * XPG6 assertion 313 [count]r\n :
					 * Arrange to set cursor correctly.
					 */
					endsrccol = gcursor - genbuf - 1;
				}
#endif /* XPG6 */
			} else {
				/*
				 * Upon escape, gcursor is pointing to '\0'
				 * terminating the string in genbuf.
				 */
				endsrccol = gcursor - genbuf - 1;
			}
			ixlatctl(0);

			/*
			 * After an append, stick information
			 * about the ^D's and ^^D's and 0^D's in
			 * the repeated text buffer so repeated
			 * inserts of stuff indented with ^D as backtab's
			 * can work.
			 */
			if (HADUP)
				addtext("^");
			else if (HADZERO)
				addtext("0");
			if(!vglobp)
				INSCDCNT = CDCNT;
			while (CDCNT > 0) {
				addtext("\004");
				CDCNT--;
			}
			if (gobbled)
				addtext(" ");
			addtext(ogcursor);
		}
		repcnt = 0;

		/*
		 * Smash the generated and preexisting indents together
		 * and generate one cleanly made out of tabs and spaces
		 * if we are using autoindent and this isn't 'r' command.
		 */
		if (!vaifirst && value(vi_AUTOINDENT)) {
			i = fixindent(indent);
			if (!HADUP)
				indent = i;
			gcursor = strend(genbuf);
		}

		/*
		 * Set cnt to 1 to avoid repeating the text on the same line.
		 * Do this for commands 'i', 'I', 'a', and 'A', if we're
		 * inserting anything with a newline for XPG6.  Always do this
		 * for commands 'o' and 'O'.
		 */
		if ((imultlinecnt && gotNL) || omultlinecnt) {
			cnt = 1;
		}

		/*
		 * Limit the repetition count based on maximum
		 * possible line length; do output implied
		 * by further count (> 1) and cons up the new line
		 * in linebuf.
		 */
		cnt = vmaxrep(ch, cnt);
		/*
		 * cursor points to linebuf
		 * Copy remaining old text (cursor) in original
		 * line to after new text (gcursor + 1) in genbuf.
		 */
		CP(gcursor + 1, cursor);
		/*
		 * For [count] r \n command, when replacing [count] chars
		 * with '\n', this loop replaces [count] chars with "".
		 */
		do {
			/* cp new text (genbuf) into linebuf (cursor) */
			CP(cursor, genbuf);
			if (cnt > 1) {
				int oldhold = hold;

				Outchar = vinschar;
				hold |= HOLDQIK;
				viprintf("%s", genbuf);
				hold = oldhold;
				Outchar = vputchar;
			}
			/* point cursor after new text in linebuf */
			cursor += gcursor - genbuf;
		} while (--cnt > 0);
		endim();
		vUA2 = cursor;
		/* add the remaining old text after the cursor */
		if (escape != '\n')
			CP(cursor, gcursor + 1);

		/*
		 * If doomed characters remain, clobber them,
		 * and reopen the line to get the display exact.
		 * eg. c$ to change to end of line
		 */
		if (state != HARDOPEN) {
			DEPTH(vcline) = 0;
			savedoomed = doomed;
			if (doomed > 0) {
				int cind = cindent();

				physdc(cind, cind + doomed);
				doomed = 0;
			}
			if(MB_CUR_MAX > 1)
				rewrite = _ON;
			i = vreopen(LINE(vcline), lineDOT(), vcline);
			if(MB_CUR_MAX > 1)
				rewrite = _OFF;
#ifdef TRACE
			if (trace)
				fprintf(trace, "restoring doomed from %d to %d\n", doomed, savedoomed);
#endif
			if (ch == 'R')
				doomed = savedoomed;
		}

		/*
		 * Unless we are continuing on to another line
		 * (got a NL), break out of the for loop (got
		 * an ESCAPE).
		 */
		if (escape != '\n') {
			vshowmode("");
			break;
		}

		/*
		 * Set up for the new line.
		 * First save the current line, then construct a new
		 * first image for the continuation line consisting
		 * of any new autoindent plus the pushed ahead text.
		 */
		killU();
		addtext(gobblebl ? " " : "\n");
		/* save vutmp (for undo state) into temp file */
		vsave();
		cnt = 1;
		if (value(vi_AUTOINDENT)) {
			if (value(vi_LISP))
				indent = lindent(dot + 1);
			else
			     if (!HADUP && vaifirst)
				indent = whitecnt(linebuf);
			vaifirst = 0;
			strcLIN(vpastwh(gcursor + 1));
			gcursor = genindent(indent);
			*gcursor = 0;
			if (gcursor + strlen(linebuf) > &genbuf[LBSIZE - 2])
				gcursor = genbuf;
			CP(gcursor, linebuf);
		} else {
			/*
			 * Put gcursor at start of genbuf to wipe
			 * out previous line in preparation for
			 * the next vgetline() loop.
			 */
			CP(genbuf, gcursor + 1);
			gcursor = genbuf;
		}

		/*
		 * If we started out as a single line operation and are now
		 * turning into a multi-line change, then we had better yank
		 * out dot before it changes so that undo will work
		 * correctly later.
		 */
		if (FIXUNDO && vundkind == VCHNG) {
			vremote(1, yank, 0);
			undap1--;
		}

		/*
		 * Now do the append of the new line in the buffer,
		 * and update the display, ie: append genbuf to
		 * the file after dot.  If slowopen
		 * we don't do very much.
		 */
		vdoappend(genbuf);
		vundkind = VMANYINS;
		vcline++;
		if (state != VISUAL)
			vshow(dot, NOLINE);
		else {
			i += LINE(vcline - 1);
			vopen(dot, i);
			if (value(vi_SLOWOPEN))
				vscrap();
			else
				vsync1(LINE(vcline));
		}
		switch (ch) {
		case 'r':
			break;
		case 'a':
			if (value(vi_TERSE)) {
				vshowmode(gettext("A"));
			} else {
				vshowmode(gettext("APPEND MODE"));
			}
			break;
		case 's':
			if (value(vi_TERSE)) {
				vshowmode(gettext("S"));
			} else {
				vshowmode(gettext("SUBSTITUTE MODE"));
			}
			break;
		case 'c':
			if (value(vi_TERSE)) {
				vshowmode(gettext("C"));
			} else {
				vshowmode(gettext("CHANGE MODE"));
			}
			break;
		case 'R':
			if (value(vi_TERSE)) {
				vshowmode(gettext("R"));
			} else {
				vshowmode(gettext("REPLACE MODE"));
			}
			break;
		case 'i':
			if (value(vi_TERSE)) {
				vshowmode(gettext("I"));
			} else {
				vshowmode(gettext("INSERT MODE"));
			}
			break;
		case 'o':
			if (value(vi_TERSE)) {
				vshowmode(gettext("O"));
			} else {
				vshowmode(gettext("OPEN MODE"));
			}
			break;
		default:
			if (value(vi_TERSE)) {
				vshowmode(gettext("I"));
			} else {
				vshowmode(gettext("INPUT MODE"));
			}
		}
		strcLIN(gcursor);
		/* zero genbuf */
		*gcursor = 0;
		cursor = linebuf;
		vgotoCL(nqcolumn(cursor - 1, genbuf));
	} /* end for (;;) loop in vappend() */

	if (imultlinecnt && gotNL) {
		imultlinerep(savecnt, startsrcline, startsrccol, endsrccol);
	} else if (omultlinecnt) {
		omultlinerep(savecnt, startsrcline, endsrccol);
#ifdef XPG6
	} else if (savecnt > 1 && ch == 'r' && gotNL) {
		/*
		 * XPG6 assertion 313 & 254 : Position cursor for [count]r\n
		 * then insert [count -1] newlines.
		 */
		endsrccol = gcursor - genbuf - 1;
		rmultlinerep(savecnt, endsrccol);
#endif /* XPG6 */
	}

	/*
	 * All done with insertion, position the cursor
	 * and sync the screen.
	 */
	hold = oldhold;
	if ((imultlinecnt && gotNL) || omultlinecnt) {
		fixdisplay();
#ifdef XPG6
	} else if (savecnt > 1 && ch == 'r' && gotNL) {
		fixdisplay();
		/*
		 * XPG6 assertion 313 & 254 [count]r\n : Set flag to call
		 * fixdisplay() after operate() has finished.  To be sure that
		 * the text (after the last \n followed by an indent) is always
		 * displayed, fixdisplay() is called right before getting
		 * the next command.
		 */
		redisplay = 1;
#endif /* XPG6 */
	} else if (cursor > linebuf) {
		cursor = lastchr(linebuf, cursor);
#ifdef XPG6
		/*
		 * XPG6 assertion 313 & 254 [count]r\n :
		 * For 'r' command, when the replacement char causes new
		 * lines to be created, point cursor to first non-blank.
		 * The old code, ie: cursor = lastchr(linebuf, cursor);
		 * set cursor to the blank before the first non-blank
		 * for r\n
		 */
		if (ch == 'r' && gotNL && isblank((int)*cursor))
			++cursor;
#endif /* XPG6 */
	}
	if (state != HARDOPEN)
		vsyncCL();
	else if (cursor > linebuf)
		back1();
	doomed = 0;
	wcursor = cursor;
	(void) vmove();
}
Exemplo n.º 10
0
/*
 * Parse file name for command encoded by comm.
 * If comm is E then command is doomed and we are
 * parsing just so user won't have to retype the name.
 */
void
filename(int comm)
{
	register int c = comm, d;
	register int i;
#ifdef	FLOCKFILE
	int lock ;

	lock = 0 ;
#endif

	d = ex_getchar();
	if (endcmd(d)) {
		if (savedfile[0] == 0 && comm != 'f')
			error("No file|No current filename");
		CP(file, savedfile);
#ifdef	FLOCKFILE
		if (io_curr && io_curr != io_savedfile) close(io_curr) ;
		lock = lock_curr = lock_savedfile ;
		io_curr = io_savedfile ;
#endif
		wasalt = (isalt > 0) ? isalt-1 : 0;
		isalt = 0;
		oldadot = altdot;
		if (c == 'e' || c == 'E')
			altdot = lineDOT();
		if (d == EOF)
			ungetchar(d);
	} else {
		ungetchar(d);
		getone();
		eol();
		if (savedfile[0] == 0 && c != 'E' && c != 'e') {
			c = 'e';
			edited = 0;
		}
		wasalt = strcmp(file, altfile) == 0;
		oldadot = altdot;
		switch (c) {

		case 'f':
			edited = 0;
			/* fall into ... */

		case 'e':
			if (savedfile[0]) {
#ifdef	FLOCKFILE
				if (strcmp(file,savedfile) == 0) break ;
#endif
				altdot = lineDOT();
				CP(altfile, savedfile);
#ifdef	FLOCKFILE
				if (io_altfile) close (io_altfile) ;
				io_altfile = io_savedfile ;
				lock_altfile = lock_savedfile ;
				io_savedfile = 0 ;
#endif
			}
			CP(savedfile, file);
#ifdef	FLOCKFILE
			io_savedfile = io_curr ;
			lock_savedfile = lock_curr ;
			io_curr = 0 ;		lock = lock_curr = 0 ;
#endif
			break;

		default:
			if (file[0]) {
#ifdef	FLOCKFILE
				if (wasalt) break ;
#endif
				if (c != 'E')
					altdot = lineDOT();
				CP(altfile, file);
#ifdef	FLOCKFILE
				if (io_altfile
				&& io_altfile != io_curr) close (io_altfile) ;
				io_altfile = io_curr ;
				lock_altfile = lock_curr ;
				io_curr = 0 ;		lock = lock_curr = 0 ;
#endif
			}
			break;
		}
	}
	if ((hush && comm != 'f') || comm == 'E')
		return;
	if (file[0] != 0) {
		lprintf("\"%s\"", file);
		if (comm == 'f') {
			if (value(READONLY))
				ex_printf(" [Read only]");
			if (!edited)
				ex_printf(" [Not edited]");
			if (tchng)
				ex_printf(" [Modified]");
#ifdef	FLOCKFILE
			if (lock == LOCK_SH)
				ex_printf(" [Shared lock]") ;
			else if (lock == LOCK_EX)
				ex_printf(" [Exclusive lock]") ;
#endif
		}
		flush();
	} else
		ex_printf("No file ");
	if (comm == 'f') {
		if (!(i = lineDOL()))
			i++;
		ex_printf(" line %d of %d --%ld%%--", lineDOT(), lineDOL(),
		    (long) 100 * lineDOT() / i);
	}
}