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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}

(3)

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

Static Semantics

(4)

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

(5)

Examples of comments:

(6)
       --  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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