Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-wchstw.ads @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT RUN-TIME COMPONENTS -- | |
| 4 -- -- | |
| 5 -- S Y S T E M . W C H _ S T W -- | |
| 6 -- -- | |
| 7 -- S p e c -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. -- | |
| 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 | |
| 32 -- This package contains the routine used to convert strings to wide (wide) | |
| 33 -- strings for use by wide (wide) image attribute. | |
| 34 | |
| 35 with System.WCh_Con; | |
| 36 | |
| 37 package System.WCh_StW is | |
| 38 pragma Pure; | |
| 39 | |
| 40 procedure String_To_Wide_String | |
| 41 (S : String; | |
| 42 R : out Wide_String; | |
| 43 L : out Natural; | |
| 44 EM : System.WCh_Con.WC_Encoding_Method); | |
| 45 -- This routine simply takes its argument and converts it to wide string | |
| 46 -- format, storing the result in R (1 .. L), with L being set appropriately | |
| 47 -- on return. The caller guarantees that R is long enough to accommodate | |
| 48 -- the result. This is used in the context of the Wide_Image attribute, | |
| 49 -- where the argument is the corresponding 'Image attribute. Any wide | |
| 50 -- character escape sequences in the string are converted to the | |
| 51 -- corresponding wide character value. No syntax checks are made, it is | |
| 52 -- assumed that any such sequences are validly formed (this must be assured | |
| 53 -- by the caller), and results from the fact that Wide_Image is only used | |
| 54 -- on strings that have been built by the compiler, such as images of | |
| 55 -- enumeration literals. If the method for encoding is a shift-in, | |
| 56 -- shift-out convention, then it is assumed that normal (non-wide | |
| 57 -- character) mode holds at the start and end of the argument string. EM | |
| 58 -- indicates the wide character encoding method. | |
| 59 -- Note: in the WCEM_Brackets case, the brackets escape sequence is used | |
| 60 -- only for codes greater than 16#FF#. | |
| 61 | |
| 62 procedure String_To_Wide_Wide_String | |
| 63 (S : String; | |
| 64 R : out Wide_Wide_String; | |
| 65 L : out Natural; | |
| 66 EM : System.WCh_Con.WC_Encoding_Method); | |
| 67 -- Same function with Wide_Wide_String output | |
| 68 | |
| 69 end System.WCh_StW; |