showCaret();
showCaret(caretLine);
void doSelectionCursorNext() {	int offsetInLine;		offsetInLine = caretOffset - content.getOffsetAtLine(caretLine);	if (offsetInLine < content.getLine(caretLine).length()) {		// Remember the last direction. Always update lastCaretDirection,		// even though it's not used in non-bidi mode in order to avoid 		// extra methods.				lastCaretDirection = ST.COLUMN_NEXT;		caretOffset++;		showCaret();	}	else	if (caretLine < content.getLineCount() - 1 && isSingleLine() == false) {		// only go to next line if not in single line mode. fixes 5673		caretLine++;		caretOffset = content.getOffsetAtLine(caretLine);		showCaret();	}}