Multiline comments

Starting with version 0.13.0 of the language Nim supports multiline comments. They look like:

#[Comment here.
Multiple lines
are not a problem.]#

Multiline comments support nesting:

#[  #[ Multiline comment in already
   commented out code. ]#
proc p[T](x: T) = discard
]#

Multiline documentation comments also exist and support nesting too:

proc foo =
  ##[Long documentation comment
     here.
  ]##

You can also use the discard statement together with triple quoted string literals to create multiline comments:

discard """ You can have any Nim code text commented
out inside this with no indentation restrictions.
      yes("May I ask a pointless question?") """

This was how multiline comments were done before version 0.13.0, and it is used to provide specifications to testament test framework.