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) 1995-2013, 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 -------------- 62 -- To_Mixed -- 63 -------------- 64 65 procedure To_Mixed (A : in out String) is 66 Ucase : Boolean := True; 67 68 begin 69 for J in A'Range loop 70 if Ucase then 71 A (J) := To_Upper (A (J)); 72 else 73 A (J) := To_Lower (A (J)); 74 end if; 75 76 Ucase := A (J) = '_'; 77 end loop; 78 end To_Mixed; 79 80 -------------- 81 -- To_Upper -- 82 -------------- 83 84 function To_Upper (A : Character) return Character is 85 A_Val : constant Natural := Character'Pos (A); 86 87 begin 88 if A in 'a' .. 'z' 89 or else A_Val in 16#E0# .. 16#F6# 90 or else A_Val in 16#F8# .. 16#FE# 91 then 92 return Character'Val (A_Val - 16#20#); 93 else 94 return A; 95 end if; 96 end To_Upper; 97 98 procedure To_Upper (A : in out String) is 99 begin 100 for J in A'Range loop 101 A (J) := To_Upper (A (J)); 102 end loop; 103 end To_Upper; 104 105end System.Case_Util; 106