Overview of comments

Use the comment filter to insert comments into a pgn file:

      x = _ attacked by k
      comment ("There are "
               #x
               " empty squares in the king's field. They are: "
               x)

Use hascomment filter to match comments in the PGN file:

hascomment "Good move"

You can instruct the CQL parser to ignore parts of the CQL file using C-style comments:

• Anything on a line following // is ignored
• Anything between the /* and */ sequences is ignored.

For example:

    cql()
     check // the  part after 'check' is a comment and is ignored
     Q attacks r
    /* These two lines are ignored
      Second line*/