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Diffstat (limited to 'gcc/ada/s-wchjis.ads')
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diff --git a/gcc/ada/s-wchjis.ads b/gcc/ada/s-wchjis.ads new file mode 100644 index 000000000..b91839704 --- /dev/null +++ b/gcc/ada/s-wchjis.ads @@ -0,0 +1,78 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . W C H _ J I S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2009, 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. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains routines used for converting between internal +-- JIS codes and the two external forms we support (EUC and Shift-JIS) + +pragma Compiler_Unit; + +package System.WCh_JIS is + pragma Pure; + + function EUC_To_JIS (EUC1, EUC2 : Character) return Wide_Character; + -- Given the two bytes of a EUC representation, return the + -- corresponding JIS code wide character. Raises Constraint_Error + -- if the two characters are not a valid EUC encoding. + + procedure JIS_To_EUC + (J : Wide_Character; + EUC1 : out Character; + EUC2 : out Character); + + -- Given a wide character in JIS form, produce the corresponding + -- two bytes of the EUC representation of this character. This is + -- only used if J is not in the normal ASCII range, i.e. on entry + -- we know that Wide_Character'Pos (J) >= 16#0080# and that we + -- thus require a two byte EUC representation (ASCII codes appear + -- unchanged as a single byte in EUC). No error checking is performed, + -- the input code is assumed to be in an appropriate range. + + procedure JIS_To_Shift_JIS + (J : Wide_Character; + SJ1 : out Character; + SJ2 : out Character); + -- Given a wide character code in JIS form, produce the corresponding + -- two bytes of the Shift-JIS representation of this character. This + -- is only used if J is not in the normal ASCII range, i.e. on entry + -- we know that Wide_Character'Pos (J) >= 16#0080# and that we + -- thus require a two byte EUC representation (ASCII codes appear + -- unchanged as a single byte in EUC). No error checking is performed, + -- the input code is assumed to be in an appropriate range (note in + -- particular that input codes in the range 16#0080#-16#00FF#, i.e. + -- Hankaku Kana, do not appear, since Shift JIS has no representation + -- for such codes. + + function Shift_JIS_To_JIS (SJ1, SJ2 : Character) return Wide_Character; + -- Given the two bytes of a Shift-JIS representation, return the + -- corresponding JIS code wide character. Raises Constraint_Error if + -- the two characters are not a valid shift-JIS encoding. + +end System.WCh_JIS; |