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From: dewar@cs.nyu.edu (Robert Dewar)
Subject: Re: converting lower case to upper case
Date: 1995/04/06
Message-ID: <dewar.797194203@gnat>#1/1
X-Deja-AN: 100939429
references: <3ls54b$hu@news1.delphi.com>
organization: Courant Institute of Mathematical Sciences
newsgroups: comp.lang.ada
Date: 1995-04-06T00:00:00+00:00
List-Id: <comp.lang.ada>


tmoran says:

"function To_Upper(Item : in Character) return Character is
  Raise_It:constant array('a' .. 'z') of Character
    :="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
begin
  if Item in Raise_It'range then return Raise_It(Item);
  else return Item;
  end if;
end To_Upper;"

this is wrong, it handles only the lower part of the Ada character set,
and not Latin-1 extended characters. It is really quite important in
Ada 95 to abandon this familiar do-it-yourself-its-so-easy idiom for
case convesion, and use the routines in Ada.Characters.Handling. This
little bit of effort will be well paid off in future reuse of your code
in internatational contexts.