1.1 Symbols

Free Pascal allows all characters, digits and some special character symbols in a Pascal source file.

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Recognised symbols

--letter -|A...Z ---------------------------------------------------
        --a...z --

--digit-0...9 ----------------------------------------------------

--       ---    ------------------------------------------------
  hex- digit  -0A......9F--|
           -a...f--|
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The following characters have a special meaning:

' + - * / = < > [ ] . , ( ) : ^ @ { } $ # & %

and the following character pairs too:

<< >> ** <> >< <= >= := += -= *= /= (* *) (. .) //

When used in a range specifier, the character pair (. is equivalent to the left square bracket [. Likewise, the character pair .) is equivalent to the right square bracket ]. When used for comment delimiters, the character pair (* is equivalent to the left brace { and the character pair *) is equivalent to the right brace }. These character pairs retain their normal meaning in string expressions.