1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- S Y S T E M . C A S E _ U T I L -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1995-2019, AdaCore -- 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 32pragma Compiler_Unit_Warning; 33 34package body System.Case_Util is 35 36 -------------- 37 -- To_Lower -- 38 -------------- 39 40 function To_Lower (A : Character) return Character is 41 A_Val : constant Natural := Character'Pos (A); 42 43 begin 44 if A in 'A' .. 'Z' 45 or else A_Val in 16#C0# .. 16#D6# 46 or else A_Val in 16#D8# .. 16#DE# 47 then 48 return Character'Val (A_Val + 16#20#); 49 else 50 return A; 51 end if; 52 end To_Lower; 53 54 procedure To_Lower (A : in out String) is 55 begin 56 for J in A'Range loop 57 A (J) := To_Lower (A (J)); 58 end loop; 59 end To_Lower; 60 61 function To_Lower (A : String) return String is 62 Result : String := A; 63 begin 64 To_Lower (Result); 65 return Result; 66 end To_Lower; 67 68 -------------- 69 -- To_Mixed -- 70 -------------- 71 72 procedure To_Mixed (A : in out String) is 73 Ucase : Boolean := True; 74 75 begin 76 for J in A'Range loop 77 if Ucase then 78 A (J) := To_Upper (A (J)); 79 else 80 A (J) := To_Lower (A (J)); 81 end if; 82 83 Ucase := A (J) = '_'; 84 end loop; 85 end To_Mixed; 86 87 function To_Mixed (A : String) return String is 88 Result : String := A; 89 begin 90 To_Mixed (Result); 91 return Result; 92 end To_Mixed; 93 94 -------------- 95 -- To_Upper -- 96 -------------- 97 98 function To_Upper (A : Character) return Character is 99 A_Val : constant Natural := Character'Pos (A); 100 101 begin 102 if A in 'a' .. 'z' 103 or else A_Val in 16#E0# .. 16#F6# 104 or else A_Val in 16#F8# .. 16#FE# 105 then 106 return Character'Val (A_Val - 16#20#); 107 else 108 return A; 109 end if; 110 end To_Upper; 111 112 procedure To_Upper (A : in out String) is 113 begin 114 for J in A'Range loop 115 A (J) := To_Upper (A (J)); 116 end loop; 117 end To_Upper; 118 119 function To_Upper (A : String) return String is 120 Result : String := A; 121 begin 122 To_Upper (Result); 123 return Result; 124 end To_Upper; 125 126end System.Case_Util; 127