Wraps some rows of a parse table into a sub-expression.
wrap_subexpr_in_curly(pd, ind_to_be_wrapped, indent_by, space_after)
A parse table.
The indices of the rows that should be wrapped into a new expression.
The amount of spaces used to indent an expression in curly braces. Used for unindention.
How many spaces should be inserted after the closing brace.