Make inst mark the #%expression.
New indentation rules implemented

1) Indentation rules to to count paren(indentation):
Return number of parenthesis till the outmost “@“ annotation,
if the there is "[", we check if it has "@" right after if and at the
same line, if so, we add the number of characters between "[" and
the beginning of the line it appears
2) line push back rules:
we do not push back lines begin with “@“ that
a) has keyworld "codeblock" or "verbatim" after
b) contains “[” and multiple lines before the closing “]”