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2.7 Comments

2.7 Comments

1
A comment starts with two adjacent hyphens and extends up to the end of the line. A comment can appear on any line of a program. The presence or absence of comments has no influence on whether a program is legal or illegal. Furthermore, comments do not influence the effect of a program; their sole purpose is the enlightenment of the human reader.

2
Examples:

-- 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

Note:

3
Horizontal tabulation can be used in comments, after the double hyphen, and is equivalent to one or more spaces (see 2.2).

4
References:

*
end of a line 2.2

*
illegal 1.6

*
legal 1.6

*
space character 2.1



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