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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) 1992-2005, 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 ------------------------------------------------------------------------------
38 package Ada.Characters.Handling is
39 pragma Preelaborate;
40 pragma Pure_05;
41 -- In accordance with Ada 2005 AI-362
43 ----------------------------------------
44 -- Character Classification Functions --
45 ----------------------------------------
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;
60 ---------------------------------------------------
61 -- Conversion Functions for Character and String --
62 ---------------------------------------------------
64 function To_Lower (Item : Character) return Character;
65 function To_Upper (Item : Character) return Character;
66 function To_Basic (Item : Character) return Character;
68 function To_Lower (Item : String) return String;
69 function To_Upper (Item : String) return String;
70 function To_Basic (Item : String) return String;
72 ----------------------------------------------------------------------
73 -- Classifications of and Conversions Between Character and ISO 646 --
74 ----------------------------------------------------------------------
76 subtype ISO_646 is
77 Character range Character'Val (0) .. Character'Val (127);
79 function Is_ISO_646 (Item : Character) return Boolean;
80 function Is_ISO_646 (Item : String) return Boolean;
82 function To_ISO_646
83 (Item : Character;
84 Substitute : ISO_646 := ' ') return ISO_646;
86 function To_ISO_646
87 (Item : String;
88 Substitute : ISO_646 := ' ') return String;
90 ------------------------------------------------------
91 -- Classifications of Wide_Character and Characters --
92 ------------------------------------------------------
94 -- Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
95 -- and are considered obsolete in Ada.Characters.Handling. We deal with
96 -- this by using the special Ada_05 form of pragma Obsolescent which is
97 -- only active in Ada_05 mode.
99 function Is_Character (Item : Wide_Character) return Boolean;
100 pragma Obsolescent
101 ("(Ada 2005) use Ada.Characters.Conversions.Is_Character", Ada_05);
103 function Is_String (Item : Wide_String) return Boolean;
104 pragma Obsolescent
105 ("(Ada 2005) use Ada.Characters.Conversions.Is_String", Ada_05);
107 ------------------------------------------------------
108 -- Conversions between Wide_Character and Character --
109 ------------------------------------------------------
111 -- Ada 2005 AI 395: these functions are moved to Ada.Characters.Conversions
112 -- and are considered obsolete in Ada.Characters.Handling. We deal with
113 -- this by using the special Ada_05 form of pragma Obsolescent which is
114 -- only active in Ada_05 mode.
116 function To_Character
117 (Item : Wide_Character;
118 Substitute : Character := ' ') return Character;
119 pragma Obsolescent
120 ("(Ada 2005) use Ada.Characters.Conversions.To_Character", Ada_05);
122 function To_String
123 (Item : Wide_String;
124 Substitute : Character := ' ') return String;
125 pragma Obsolescent
126 ("(Ada 2005) use Ada.Characters.Conversions.To_String", Ada_05);
128 function To_Wide_Character
129 (Item : Character) return Wide_Character;
130 pragma Obsolescent
131 ("(Ada 2005) use Ada.Characters.Conversions.To_Wide_Character", Ada_05);
133 function To_Wide_String
134 (Item : String)return Wide_String;
135 pragma Obsolescent
136 ("(Ada 2005) use Ada.Characters.Conversions.To_Wide_String", Ada_05);
138 private
139 pragma Inline (Is_Control);
140 pragma Inline (Is_Graphic);
141 pragma Inline (Is_Letter);
142 pragma Inline (Is_Lower);
143 pragma Inline (Is_Upper);
144 pragma Inline (Is_Basic);
145 pragma Inline (Is_Digit);
146 pragma Inline (Is_Hexadecimal_Digit);
147 pragma Inline (Is_Alphanumeric);
148 pragma Inline (Is_Special);
149 pragma Inline (To_Lower);
150 pragma Inline (To_Upper);
151 pragma Inline (To_Basic);
152 pragma Inline (Is_ISO_646);
153 pragma Inline (Is_Character);
154 pragma Inline (To_Character);
155 pragma Inline (To_Wide_Character);
157 end Ada.Characters.Handling;