gcc/ada/s-casuti.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --                     S Y S T E M . C A S E _ U T I L                      --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --           Copyright (C) 1995-2002 Ada Core Technologies, Inc.            --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
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  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
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  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  Simple casing functions
  35
  36 --  This package provides simple casing functions that do not require the
  37 --  overhead of the full casing tables found in Ada.Characters.Handling.
  38
  39 --  Note that all the routines in this package are available to the user
  40 --  via GNAT.Case_Util, which imports all the entities from this package.
  41
  42 package System.Case_Util is
  43 pragma Pure (Case_Util);
  44
  45    --  Note: all the following functions handle the full Latin-1 set
  46
  47    function To_Upper (A : Character) return Character;
  48    --  Converts A to upper case if it is a lower case letter, otherwise
  49    --  returns the input argument unchanged.
  50
  51    procedure To_Upper (A : in out String);
  52    --  Folds all characters of string A to upper csae
  53
  54    function To_Lower (A : Character) return Character;
  55    --  Converts A to lower case if it is an upper case letter, otherwise
  56    --  returns the input argument unchanged.
  57
  58    procedure To_Lower (A : in out String);
  59    --  Folds all characters of string A to lower case
  60
  61    procedure To_Mixed (A : in out String);
  62    --  Converts A to mixed case (i.e. lower case, except for initial
  63    --  character and any character after an underscore, which are
  64    --  converted to upper case.
  65
  66 end System.Case_Util;