2.7 Comments

1. A comment starts with two adjacent hyphens and extends up to the end of the line.
   Syntax
   

2. comment ::= --{non_end_of_line_character}
   

   1. A comment may appear on any line of a program.

1. The presence or absence of comments has no influence on whether a program is legal or illegal. Furthermore, comments do not influence the meaning of a program; their sole purpose is the enlightenment of the human reader.
   Examples
   
2. Examples of comments:

3. --  the last sentence above echoes the Algol 68 report
   
   end;  --  processing of Line is complete
   
   --  a long comment may be split onto
   --  two or more consecutive lines
   
   ----------------  the first two hyphens start the comment
   

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