예제 #1
0
파일: ex_vops.c 프로젝트: chungy/ex-vi
/*
 * 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);
}
예제 #2
0
파일: ex_vops.c 프로젝트: chungy/ex-vi
/*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);
}
예제 #3
0
/*
 * Fix the cursor to be positioned in the correct place
 * to accept a command.
 */
void
vfixcurs(void)
{

	vsetcurs(cursor);
}