/usr/lib/gcc-cross/sh4-linux-gnu/5/adainclude/gnatvsn/widechar.adb is in libgnatvsn5-dev-sh4-cross 5.3.1-14ubuntu2cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | ------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- W I D E C H A R --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2014, 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. --
-- --
------------------------------------------------------------------------------
-- Note: this package uses the generic subprograms in System.WCh_Cnv, which
-- completely encapsulate the set of wide character encoding methods, so no
-- modifications are required when adding new encoding methods.
with Opt; use Opt;
with System.WCh_Cnv; use System.WCh_Cnv;
with System.WCh_Con; use System.WCh_Con;
package body Widechar is
---------------------------
-- Is_Start_Of_Wide_Char --
---------------------------
function Is_Start_Of_Wide_Char
(S : Source_Buffer_Ptr;
P : Source_Ptr) return Boolean
is
begin
case Wide_Character_Encoding_Method is
-- For Hex mode, just test for an ESC character. The ESC character
-- cannot appear in any other context in a legal Ada program.
when WCEM_Hex =>
return S (P) = ASCII.ESC;
-- For brackets, just test ["x where x is a hex character. This is
-- sufficient test, since this sequence cannot otherwise appear in a
-- legal Ada program.
when WCEM_Brackets =>
return P <= S'Last - 2
and then S (P) = '['
and then S (P + 1) = '"'
and then (S (P + 2) in '0' .. '9'
or else
S (P + 2) in 'a' .. 'f'
or else
S (P + 2) in 'A' .. 'F');
-- All other encoding methods use the upper bit set in the first
-- character to uniquely represent a wide character.
when WCEM_Upper |
WCEM_Shift_JIS |
WCEM_EUC |
WCEM_UTF8 =>
return S (P) >= Character'Val (16#80#);
end case;
end Is_Start_Of_Wide_Char;
-----------------
-- Length_Wide --
-----------------
function Length_Wide return Nat is
begin
return WC_Longest_Sequence;
end Length_Wide;
---------------
-- Scan_Wide --
---------------
procedure Scan_Wide
(S : Source_Buffer_Ptr;
P : in out Source_Ptr;
C : out Char_Code;
Err : out Boolean)
is
P_Init : constant Source_Ptr := P;
Chr : Character;
function In_Char return Character;
-- Function to obtain characters of wide character escape sequence
-------------
-- In_Char --
-------------
function In_Char return Character is
begin
P := P + 1;
return S (P - 1);
end In_Char;
function WC_In is new Char_Sequence_To_UTF_32 (In_Char);
-- Start of processing for Scan_Wide
begin
Chr := In_Char;
-- Scan out the wide character. If the first character is a bracket,
-- we allow brackets encoding regardless of the standard encoding
-- method being used, but otherwise we use this standard method.
if Chr = '[' then
C := Char_Code (WC_In (Chr, WCEM_Brackets));
else
C := Char_Code (WC_In (Chr, Wide_Character_Encoding_Method));
end if;
Err := False;
Wide_Char_Byte_Count := Wide_Char_Byte_Count + Nat (P - P_Init - 1);
exception
when Constraint_Error =>
C := Char_Code (0);
P := P - 1;
Err := True;
end Scan_Wide;
--------------
-- Set_Wide --
--------------
procedure Set_Wide
(C : Char_Code;
S : in out String;
P : in out Natural)
is
procedure Out_Char (C : Character);
-- Procedure to store one character of wide character sequence
--------------
-- Out_Char --
--------------
procedure Out_Char (C : Character) is
begin
P := P + 1;
S (P) := C;
end Out_Char;
procedure WC_Out is new UTF_32_To_Char_Sequence (Out_Char);
-- Start of processing for Set_Wide
begin
WC_Out (UTF_32_Code (C), Wide_Character_Encoding_Method);
end Set_Wide;
---------------
-- Skip_Wide --
---------------
procedure Skip_Wide (S : String; P : in out Natural) is
P_Init : constant Natural := P;
function Skip_Char return Character;
-- Function to skip one character of wide character escape sequence
---------------
-- Skip_Char --
---------------
function Skip_Char return Character is
begin
P := P + 1;
return S (P - 1);
end Skip_Char;
function WC_Skip is new Char_Sequence_To_UTF_32 (Skip_Char);
Discard : UTF_32_Code;
pragma Warnings (Off, Discard);
-- Start of processing for Skip_Wide
begin
Discard := WC_Skip (Skip_Char, Wide_Character_Encoding_Method);
Wide_Char_Byte_Count := Wide_Char_Byte_Count + Nat (P - P_Init - 1);
end Skip_Wide;
---------------
-- Skip_Wide --
---------------
procedure Skip_Wide (S : Source_Buffer_Ptr; P : in out Source_Ptr) is
P_Init : constant Source_Ptr := P;
function Skip_Char return Character;
-- Function to skip one character of wide character escape sequence
---------------
-- Skip_Char --
---------------
function Skip_Char return Character is
begin
P := P + 1;
return S (P - 1);
end Skip_Char;
function WC_Skip is new Char_Sequence_To_UTF_32 (Skip_Char);
Discard : UTF_32_Code;
pragma Warnings (Off, Discard);
-- Start of processing for Skip_Wide
begin
Discard := WC_Skip (Skip_Char, Wide_Character_Encoding_Method);
Wide_Char_Byte_Count := Wide_Char_Byte_Count + Nat (P - P_Init - 1);
end Skip_Wide;
end Widechar;
|