projects / thirdparty / gcc.git / blame
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3084fecd | 3 | -- GNAT RUN-TIME COMPONENTS -- |
| cacbc350 RK |
4 | -- -- |
| 5 | -- S Y S T E M . W C H _ S T W -- | |
| 6 | -- -- | |
| 7 | -- S p e c -- | |
| 8 | -- -- | |
| 748086b7 | 9 | -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
| cacbc350 RK |
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- -- | |
| 748086b7 | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| cacbc350 RK |
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 -- | |
| 748086b7 JJ |
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/>. -- | |
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26 | -- -- |
| 27 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 71ff80dc | 28 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| cacbc350 RK |
29 | -- -- |
| 30 | ------------------------------------------------------------------------------ | |
| 31 | ||
| 82c80734 | 32 | -- This package contains the routine used to convert strings to wide (wide) |
| 470cd9e9 | 33 | -- strings for use by wide (wide) image attribute. |
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34 | |
| 35 | with System.WCh_Con; | |
| 36 | ||
| 37 | package System.WCh_StW is | |
| 009186e0 | 38 | pragma Pure; |
| cacbc350 | 39 | |
| 470cd9e9 | 40 | procedure String_To_Wide_String |
| 82c80734 | 41 | (S : String; |
| 470cd9e9 RD |
42 | R : out Wide_String; |
| 43 | L : out Natural; | |
| 44 | EM : System.WCh_Con.WC_Encoding_Method); | |
| cacbc350 | 45 | -- This routine simply takes its argument and converts it to wide string |
| 470cd9e9 | 46 | -- format, storing the result in R (1 .. L), with L being set appropriately |
| 12a13f01 RW |
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. | |
| cacbc350 RK |
59 | -- Note: in the WCEM_Brackets case, the brackets escape sequence is used |
| 60 | -- only for codes greater than 16#FF#. | |
| 61 | ||
| 470cd9e9 | 62 | procedure String_To_Wide_Wide_String |
| 82c80734 | 63 | (S : String; |
| 470cd9e9 RD |
64 | R : out Wide_Wide_String; |
| 65 | L : out Natural; | |
| 66 | EM : System.WCh_Con.WC_Encoding_Method); | |
| 82c80734 RD |
67 | -- Same function with Wide_Wide_String output |
| 68 | ||
| cacbc350 | 69 | end System.WCh_StW; |