gcc/ada/libgnat/a-wichha.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --         A D A . W I D E _ C H A R A C T E R S . H A N D L I N G          --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2010-2017, Free Software Foundation, 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- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 with Ada.Wide_Characters.Unicode; use Ada.Wide_Characters.Unicode;
  33
  34 package body Ada.Wide_Characters.Handling is
  35
  36    ---------------------------
  37    -- Character_Set_Version --
  38    ---------------------------
  39
  40    function Character_Set_Version return String is
  41    begin
  42       return "Unicode 4.0";
  43    end Character_Set_Version;
  44
  45    ---------------------
  46    -- Is_Alphanumeric --
  47    ---------------------
  48
  49    function Is_Alphanumeric (Item : Wide_Character) return Boolean is
  50    begin
  51       return Is_Letter (Item) or else Is_Digit (Item);
  52    end Is_Alphanumeric;
  53
  54    ----------------
  55    -- Is_Control --
  56    ----------------
  57
  58    function Is_Control (Item : Wide_Character) return Boolean is
  59    begin
  60       return Get_Category (Item) = Cc;
  61    end Is_Control;
  62
  63    --------------
  64    -- Is_Digit --
  65    --------------
  66
  67    function Is_Digit (Item : Wide_Character) return Boolean
  68      renames Ada.Wide_Characters.Unicode.Is_Digit;
  69
  70    ----------------
  71    -- Is_Graphic --
  72    ----------------
  73
  74    function Is_Graphic (Item : Wide_Character) return Boolean is
  75    begin
  76       return not Is_Non_Graphic (Item);
  77    end Is_Graphic;
  78
  79    --------------------------
  80    -- Is_Hexadecimal_Digit --
  81    --------------------------
  82
  83    function Is_Hexadecimal_Digit (Item : Wide_Character) return Boolean is
  84    begin
  85       return Is_Digit (Item)
  86         or else Item in 'A' .. 'F'
  87         or else Item in 'a' .. 'f';
  88    end Is_Hexadecimal_Digit;
  89
  90    ---------------
  91    -- Is_Letter --
  92    ---------------
  93
  94    function Is_Letter (Item : Wide_Character) return Boolean
  95      renames Ada.Wide_Characters.Unicode.Is_Letter;
  96
  97    ------------------------
  98    -- Is_Line_Terminator --
  99    ------------------------
 100
 101    function Is_Line_Terminator (Item : Wide_Character) return Boolean
 102      renames Ada.Wide_Characters.Unicode.Is_Line_Terminator;
 103
 104    --------------
 105    -- Is_Lower --
 106    --------------
 107
 108    function Is_Lower (Item : Wide_Character) return Boolean is
 109    begin
 110       return Get_Category (Item) = Ll;
 111    end Is_Lower;
 112
 113    -------------
 114    -- Is_Mark --
 115    -------------
 116
 117    function Is_Mark (Item : Wide_Character) return Boolean
 118      renames Ada.Wide_Characters.Unicode.Is_Mark;
 119
 120    ---------------------
 121    -- Is_Other_Format --
 122    ---------------------
 123
 124    function Is_Other_Format (Item : Wide_Character) return Boolean
 125      renames Ada.Wide_Characters.Unicode.Is_Other;
 126
 127    ------------------------------
 128    -- Is_Punctuation_Connector --
 129    ------------------------------
 130
 131    function Is_Punctuation_Connector (Item : Wide_Character) return Boolean
 132      renames Ada.Wide_Characters.Unicode.Is_Punctuation;
 133
 134    --------------
 135    -- Is_Space --
 136    --------------
 137
 138    function Is_Space (Item : Wide_Character) return Boolean
 139      renames Ada.Wide_Characters.Unicode.Is_Space;
 140
 141    ----------------
 142    -- Is_Special --
 143    ----------------
 144
 145    function Is_Special (Item : Wide_Character) return Boolean is
 146    begin
 147       return Is_Graphic (Item) and then not Is_Alphanumeric (Item);
 148    end Is_Special;
 149
 150    --------------
 151    -- Is_Upper --
 152    --------------
 153
 154    function Is_Upper (Item : Wide_Character) return Boolean is
 155    begin
 156       return Get_Category (Item) = Lu;
 157    end Is_Upper;
 158
 159    --------------
 160    -- To_Lower --
 161    --------------
 162
 163    function To_Lower (Item : Wide_Character) return Wide_Character
 164      renames Ada.Wide_Characters.Unicode.To_Lower_Case;
 165
 166    function To_Lower (Item : Wide_String) return Wide_String is
 167       Result : Wide_String (Item'Range);
 168
 169    begin
 170       for J in Result'Range loop
 171          Result (J) := To_Lower (Item (J));
 172       end loop;
 173
 174       return Result;
 175    end To_Lower;
 176
 177    --------------
 178    -- To_Upper --
 179    --------------
 180
 181    function To_Upper (Item : Wide_Character) return Wide_Character
 182      renames Ada.Wide_Characters.Unicode.To_Upper_Case;
 183
 184    function To_Upper (Item : Wide_String) return Wide_String is
 185       Result : Wide_String (Item'Range);
 186
 187    begin
 188       for J in Result'Range loop
 189          Result (J) := To_Upper (Item (J));
 190       end loop;
 191
 192       return Result;
 193    end To_Upper;
 194
 195 end Ada.Wide_Characters.Handling;