Talk:Comments

Pascal Comments

The Pascal section claims that '{' and '}' are Turbo Pascal extensions. However the Pascal Standard, ISO/IEC 7185:1990 explicitly contains:

6.1.8 Token separators

Where a commentary shall be any sequence of characters and separations of lines, containing neither

} nor *), the construct

( `{' | `(*' ) commentary ( `*)' | `}' )

shall be a comment if neither the { nor the (* occurs within a character-string or within a commentary.

NOTES

1 A comment may thus commence with { and end with *), or commence with (* and end with }.

2 The sequence (*) cannot occur in a commentary even though the sequence {) can.

Therefore { and } are comment delimiters in standard pascal. Note that comments like

(* this }

or

{ this *)

are valid Standard Pascal comments, but not valid Turbo Pascal comments.