Reserved words are part of the Pascal language, and cannot be rede ned. They will be denoted as
this throughout the syntax diagrams. Reserved words can be typed regardless of case, i.e. Pascal is
case insensitive. We make a distinction between Turbo Pascal and Delphi reserved words,
since with the -So switch, only the Turbo Pascal reserved words are recognised, and the
Delphi ones can be rede ned. By default, Free Pascal recognises the Delphi reserved
words.