gcc/ada/a-chahan.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --              A D A . C H A R A C T E R S . H A N D L I N G               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- This specification is derived from the Ada Reference Manual for use with --
  12 -- GNAT. The copyright notice above, and the license provisions that follow --
  13 -- apply solely to the  contents of the part following the private keyword. --
  14 --                                                                          --
  15 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  16 -- terms of the  GNU General Public License as published  by the Free Soft- --
  17 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  18 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  19 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  20 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  21 -- for  more details.  You should have  received  a copy of the GNU General --
  22 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  23 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  24 -- Boston, MA 02110-1301, USA.                                              --
  25 --                                                                          --
  26 -- As a special exception,  if other files  instantiate  generics from this --
  27 -- unit, or you link  this unit with other files  to produce an executable, --
  28 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  29 -- covered  by the  GNU  General  Public  License.  This exception does not --
  30 -- however invalidate  any other reasons why  the executable file  might be --
  31 -- covered by the  GNU Public License.                                      --
  32 --                                                                          --
  33 -- GNAT was originally developed  by the GNAT team at  New York University. --
  34 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  35 --                                                                          --
  36 ------------------------------------------------------------------------------
  37
  38 package Ada.Characters.Handling is
  39    pragma Preelaborate;
  40    pragma Pure_05;
  41    --  In accordance with Ada 2005 AI-362
  42
  43    ----------------------------------------
  44    -- Character Classification Functions --
  45    ----------------------------------------
  46
  47    function Is_Control           (Item : Character) return Boolean;
  48    function Is_Graphic           (Item : Character) return Boolean;
  49    function Is_Letter            (Item : Character) return Boolean;
  50    function Is_Lower             (Item : Character) return Boolean;
  51    function Is_Upper             (Item : Character) return Boolean;
  52    function Is_Basic             (Item : Character) return Boolean;
  53    function Is_Digit             (Item : Character) return Boolean;
  54    function Is_Decimal_Digit     (Item : Character) return Boolean
  55      renames Is_Digit;
  56    function Is_Hexadecimal_Digit (Item : Character) return Boolean;
  57    function Is_Alphanumeric      (Item : Character) return Boolean;
  58    function Is_Special           (Item : Character) return Boolean;
  59
  60    ---------------------------------------------------
  61    -- Conversion Functions for Character and String --
  62    ---------------------------------------------------
  63
  64    function To_Lower (Item : Character) return Character;
  65    function To_Upper (Item : Character) return Character;
  66    function To_Basic (Item : Character) return Character;
  67
  68    function To_Lower (Item : String) return String;
  69    function To_Upper (Item : String) return String;
  70    function To_Basic (Item : String) return String;
  71
  72    ----------------------------------------------------------------------
  73    -- Classifications of and Conversions Between Character and ISO 646 --
  74    ----------------------------------------------------------------------
  75
  76    subtype ISO_646 is
  77      Character range Character'Val (0) .. Character'Val (127);
  78
  79    function Is_ISO_646 (Item : Character) return Boolean;
  80    function Is_ISO_646 (Item : String)    return Boolean;
  81
  82    function To_ISO_646
  83      (Item       : Character;
  84       Substitute : ISO_646 := ' ') return ISO_646;
  85
  86    function To_ISO_646
  87      (Item       : String;
  88       Substitute : ISO_646 := ' ') return String;
  89
  90    ------------------------------------------------------
  91    -- Classifications of Wide_Character and Characters --
  92    ------------------------------------------------------
  93
  94    --  Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
  95    --  and are considered obsolete in Ada.Characters.Handling. However we do
  96    --  not complain about this obsolescence, since in practice it is necessary
  97    --  to use these routines when creating code that is intended to run in
  98    --  either Ada 95 or Ada 2005 mode.
  99
 100    function Is_Character (Item : Wide_Character) return Boolean;
 101    function Is_String    (Item : Wide_String)    return Boolean;
 102
 103    ------------------------------------------------------
 104    -- Conversions between Wide_Character and Character --
 105    ------------------------------------------------------
 106
 107    --  Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
 108    --  and are considered obsolete in Ada.Characters.Handling. However we do
 109    --  not complain about this obsolescence, since in practice it is necessary
 110    --  to use these routines when creating code that is intended to run in
 111    --  either Ada 95 or Ada 2005 mode.
 112
 113    function To_Character
 114      (Item       : Wide_Character;
 115       Substitute : Character := ' ') return Character;
 116
 117    function To_String
 118      (Item       : Wide_String;
 119       Substitute : Character := ' ') return String;
 120
 121    function To_Wide_Character
 122      (Item : Character) return Wide_Character;
 123
 124    function To_Wide_String
 125      (Item : String) return Wide_String;
 126
 127 private
 128    pragma Inline (Is_Control);
 129    pragma Inline (Is_Graphic);
 130    pragma Inline (Is_Letter);
 131    pragma Inline (Is_Lower);
 132    pragma Inline (Is_Upper);
 133    pragma Inline (Is_Basic);
 134    pragma Inline (Is_Digit);
 135    pragma Inline (Is_Hexadecimal_Digit);
 136    pragma Inline (Is_Alphanumeric);
 137    pragma Inline (Is_Special);
 138    pragma Inline (To_Lower);
 139    pragma Inline (To_Upper);
 140    pragma Inline (To_Basic);
 141    pragma Inline (Is_ISO_646);
 142    pragma Inline (Is_Character);
 143    pragma Inline (To_Character);
 144    pragma Inline (To_Wide_Character);
 145
 146 end Ada.Characters.Handling;