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) 1992-2009, 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 3,  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.                                     --
  21 --                                                                          --
  22 -- As a special exception under Section 7 of GPL version 3, you are granted --
  23 -- additional permissions described in the GCC Runtime Library Exception,   --
  24 -- version 3.1, as published by the Free Software Foundation.               --
  25 --                                                                          --
  26 -- You should have received a copy of the GNU General Public License and    --
  27 -- a copy of the GCC Runtime Library Exception along with this program;     --
  28 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  29 -- <http://www.gnu.org/licenses/>.                                          --
  30 --                                                                          --
  31 -- GNAT was originally developed  by the GNAT team at  New York University. --
  32 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 package Ada.Characters.Handling is
  37    pragma Preelaborate;
  38    pragma Pure_05;
  39    --  In accordance with Ada 2005 AI-362
  40
  41    ----------------------------------------
  42    -- Character Classification Functions --
  43    ----------------------------------------
  44
  45    function Is_Control           (Item : Character) return Boolean;
  46    function Is_Graphic           (Item : Character) return Boolean;
  47    function Is_Letter            (Item : Character) return Boolean;
  48    function Is_Lower             (Item : Character) return Boolean;
  49    function Is_Upper             (Item : Character) return Boolean;
  50    function Is_Basic             (Item : Character) return Boolean;
  51    function Is_Digit             (Item : Character) return Boolean;
  52    function Is_Decimal_Digit     (Item : Character) return Boolean
  53      renames Is_Digit;
  54    function Is_Hexadecimal_Digit (Item : Character) return Boolean;
  55    function Is_Alphanumeric      (Item : Character) return Boolean;
  56    function Is_Special           (Item : Character) return Boolean;
  57
  58    ---------------------------------------------------
  59    -- Conversion Functions for Character and String --
  60    ---------------------------------------------------
  61
  62    function To_Lower (Item : Character) return Character;
  63    function To_Upper (Item : Character) return Character;
  64    function To_Basic (Item : Character) return Character;
  65
  66    function To_Lower (Item : String) return String;
  67    function To_Upper (Item : String) return String;
  68    function To_Basic (Item : String) return String;
  69
  70    ----------------------------------------------------------------------
  71    -- Classifications of and Conversions Between Character and ISO 646 --
  72    ----------------------------------------------------------------------
  73
  74    subtype ISO_646 is
  75      Character range Character'Val (0) .. Character'Val (127);
  76
  77    function Is_ISO_646 (Item : Character) return Boolean;
  78    function Is_ISO_646 (Item : String)    return Boolean;
  79
  80    function To_ISO_646
  81      (Item       : Character;
  82       Substitute : ISO_646 := ' ') return ISO_646;
  83
  84    function To_ISO_646
  85      (Item       : String;
  86       Substitute : ISO_646 := ' ') return String;
  87
  88    ------------------------------------------------------
  89    -- Classifications of Wide_Character and Characters --
  90    ------------------------------------------------------
  91
  92    --  Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
  93    --  and are considered obsolete in Ada.Characters.Handling. However we do
  94    --  not complain about this obsolescence, since in practice it is necessary
  95    --  to use these routines when creating code that is intended to run in
  96    --  either Ada 95 or Ada 2005 mode.
  97
  98    function Is_Character (Item : Wide_Character) return Boolean;
  99    function Is_String    (Item : Wide_String)    return Boolean;
 100
 101    ------------------------------------------------------
 102    -- Conversions between Wide_Character and Character --
 103    ------------------------------------------------------
 104
 105    --  Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
 106    --  and are considered obsolete in Ada.Characters.Handling. However we do
 107    --  not complain about this obsolescence, since in practice it is necessary
 108    --  to use these routines when creating code that is intended to run in
 109    --  either Ada 95 or Ada 2005 mode.
 110
 111    function To_Character
 112      (Item       : Wide_Character;
 113       Substitute : Character := ' ') return Character;
 114
 115    function To_String
 116      (Item       : Wide_String;
 117       Substitute : Character := ' ') return String;
 118
 119    function To_Wide_Character
 120      (Item : Character) return Wide_Character;
 121
 122    function To_Wide_String
 123      (Item : String) return Wide_String;
 124
 125 private
 126    pragma Inline (Is_Control);
 127    pragma Inline (Is_Graphic);
 128    pragma Inline (Is_Letter);
 129    pragma Inline (Is_Lower);
 130    pragma Inline (Is_Upper);
 131    pragma Inline (Is_Basic);
 132    pragma Inline (Is_Digit);
 133    pragma Inline (Is_Hexadecimal_Digit);
 134    pragma Inline (Is_Alphanumeric);
 135    pragma Inline (Is_Special);
 136    pragma Inline (To_Lower);
 137    pragma Inline (To_Upper);
 138    pragma Inline (To_Basic);
 139    pragma Inline (Is_ISO_646);
 140    pragma Inline (Is_Character);
 141    pragma Inline (To_Character);
 142    pragma Inline (To_Wide_Character);
 143
 144 end Ada.Characters.Handling;