This is related with issue #63.
There are two known issues:
- Emacs behaves as if the multi-line comment start/end symols are "(-"
and "-)" instead of "(--" and "--)". As a result, it shows all the
correct lean comments as it is. However, it will show some examples
such as "(-5)" as a part of comment even if Lean doesn't interpret it
as it is. Technically, it's because we are using a syntax-table based
method to define comments. For more information read a documentation
of 'modify-syntax-entry' function.
- Somehow, the matching parens are broken. When we type "--)" to close
a multi-line comment. Emacs warns "Mismatched Parentheses".
