| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S Y S T E M . W C H _ C O N -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 2005-2021, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| pragma Compiler_Unit_Warning; |
| |
| package body System.WCh_Con is |
| |
| ---------------------------- |
| -- Get_WC_Encoding_Method -- |
| ---------------------------- |
| |
| function Get_WC_Encoding_Method (C : Character) return WC_Encoding_Method is |
| begin |
| for Method in WC_Encoding_Method loop |
| if C = WC_Encoding_Letters (Method) then |
| return Method; |
| end if; |
| end loop; |
| |
| raise Constraint_Error; |
| end Get_WC_Encoding_Method; |
| |
| function Get_WC_Encoding_Method (S : String) return WC_Encoding_Method is |
| begin |
| if S = "hex" then |
| return WCEM_Hex; |
| elsif S = "upper" then |
| return WCEM_Upper; |
| elsif S = "shift_jis" then |
| return WCEM_Shift_JIS; |
| elsif S = "euc" then |
| return WCEM_EUC; |
| elsif S = "utf8" then |
| return WCEM_UTF8; |
| elsif S = "brackets" then |
| return WCEM_Brackets; |
| else |
| raise Constraint_Error; |
| end if; |
| end Get_WC_Encoding_Method; |
| |
| -------------------------- |
| -- Is_Start_Of_Encoding -- |
| -------------------------- |
| |
| function Is_Start_Of_Encoding |
| (C : Character; |
| EM : WC_Encoding_Method) return Boolean |
| is |
| begin |
| return (EM in WC_Upper_Half_Encoding_Method |
| and then Character'Pos (C) >= 16#80#) |
| or else (EM in WC_ESC_Encoding_Method and then C = ASCII.ESC); |
| end Is_Start_Of_Encoding; |
| |
| end System.WCh_Con; |
