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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [casing.ads] - Rev 281

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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                               C A S I N G                                --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--         Copyright (C) 1992-2009  Free Software Foundation, Inc.          --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
with Types; use Types;
 
package Casing is
 
   --  This package contains data and subprograms to support the feature that
   --  recognizes the letter case styles used in the source program being
   --  compiled, and uses this information for error message formatting, and
   --  for recognizing reserved words that are misused as identifiers.
 
   -------------------------------
   -- Case Control Declarations --
   -------------------------------
 
   --  Declaration of type for describing casing convention
 
   type Casing_Type is (
 
      All_Upper_Case,
      --  All letters are upper case
 
      All_Lower_Case,
      --  All letters are lower case
 
      Mixed_Case,
      --  The initial letter, and any letters after underlines are upper case.
      --  All other letters are lower case
 
      Unknown
      --  Used if an identifier does not distinguish between the above cases,
      --  (e.g. X, Y_3, M4, A_B, or if it is inconsistent ABC_def).
   );
 
   ------------------------------
   -- Case Control Subprograms --
   ------------------------------
 
   procedure Set_Casing (C : Casing_Type; D : Casing_Type := Mixed_Case);
   --  Takes the name stored in the first Name_Len positions of Name_Buffer
   --  and modifies it to be consistent with the casing given by C, or if
   --  C = Unknown, then with the casing given by D. The name is basically
   --  treated as an identifier, except that special separator characters
   --  other than underline are permitted and treated like underlines (this
   --  handles cases like minus and period in unit names, apostrophes in error
   --  messages, angle brackets in names like <any_type>, etc).
 
   procedure Set_All_Upper_Case;
   pragma Inline (Set_All_Upper_Case);
   --  This procedure is called with an identifier name stored in Name_Buffer.
   --  On return, the identifier is converted to all upper case. The call is
   --  equivalent to Set_Casing (All_Upper_Case).
 
   function Determine_Casing (Ident : Text_Buffer) return Casing_Type;
   --  Determines the casing of the identifier/keyword string Ident
 
end Casing;
 

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