4.3. Nestable C style comments

Viper supports comments delimited by /* */ pairs, both characters must be on the same line (i.e. not split by a slosh/end of line pair).

These comments can be nested. The text is deleted before presentation to the parser, and so is ignored, even if it is used in leading white space. Best not to do this:

  for i in [1,2,3]
    x = i
    /* output */ print x
    # ERROR: extra space between '*/' and 'print' COUNTS!
Not yet implemented. Check the above preliminary specification of leading comments.