Might be better to not append a space if the text is blank, in which
case adapt the regression tests. Either way don't reference before
the start of the string
I uses the native bool type instead.
Some signatures containing BOOL have been left untouched when belonging to an inheritance hierarchy beyond the scope of starmath
With this fix only one line can be selected in the visual formula
editor, it's not perfect as caret can still be moved to another line
while selecting, which causes the topmost line to be selected. Anyway,
it works and addresses the bug. Better workaround might be possible
later.
Rewrote handling of SmTableNode in SmCaretPosGraphBuildingVisitor,
so that the special case where NTABLE is used as root node is handled
in the constructor, and NSTACK and NBINOM is handled in the visiting
method.
