/usr/share/ada/adainclude/gnatvsn/output.ads is in libgnatvsn5-dev 5.3.1-14ubuntu2.
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 | ------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- O U T P U T --
-- --
-- S p e c --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- This package contains low level output routines used by the compiler for
-- writing error messages and informational output. It is also used by the
-- debug source file output routines (see Sprint.Print_Debug_Line).
with Hostparm; use Hostparm;
with Types; use Types;
pragma Warnings (Off);
-- This package is used also by gnatcoll
with System.OS_Lib; use System.OS_Lib;
pragma Warnings (On);
package Output is
pragma Elaborate_Body;
type Output_Proc is access procedure (S : String);
-- This type is used for the Set_Special_Output procedure. If Output_Proc
-- is called, then instead of lines being written to standard error or
-- standard output, a call is made to the given procedure for each line,
-- passing the line with an end of line character (which is a single
-- ASCII.LF character, even in systems which normally use CR/LF or some
-- other sequence for line end).
-----------------
-- Subprograms --
-----------------
procedure Set_Special_Output (P : Output_Proc);
-- Sets subsequent output to call procedure P. If P is null, then the call
-- cancels the effect of a previous call, reverting the output to standard
-- error or standard output depending on the mode at the time of previous
-- call. Any exception generated by by calls to P is simply propagated to
-- the caller of the routine causing the write operation.
procedure Cancel_Special_Output;
-- Cancels the effect of a call to Set_Special_Output, if any. The output
-- is then directed to standard error or standard output depending on the
-- last call to Set_Standard_Error or Set_Standard_Output. It is never an
-- error to call Cancel_Special_Output. It has the same effect as calling
-- Set_Special_Output (null).
procedure Ignore_Output (S : String);
-- Does nothing. To disable output, pass Ignore_Output'Access to
-- Set_Special_Output.
procedure Set_Standard_Error;
-- Sets subsequent output to appear on the standard error file (whatever
-- that might mean for the host operating system, if anything) when
-- no special output is in effect. When a special output is in effect,
-- the output will appear on standard error only after special output
-- has been cancelled.
procedure Set_Standard_Output;
-- Sets subsequent output to appear on the standard output file (whatever
-- that might mean for the host operating system, if anything) when no
-- special output is in effect. When a special output is in effect, the
-- output will appear on standard output only after special output has been
-- cancelled. Output to standard output is the default mode before any call
-- to either of the Set procedures.
procedure Set_Output (FD : File_Descriptor);
-- Sets subsequent output to appear on the given file descriptor when no
-- special output is in effect. When a special output is in effect, the
-- output will appear on the given file descriptor only after special
-- output has been cancelled.
procedure Indent;
-- Increases the current indentation level. Whenever a line is written
-- (triggered by Eol), an appropriate amount of whitespace is added to the
-- beginning of the line, wrapping around if it gets too long.
procedure Outdent;
-- Decreases the current indentation level
procedure Write_Char (C : Character);
-- Write one character to the standard output file. If the character is LF,
-- this is equivalent to Write_Eol.
procedure Write_Erase_Char (C : Character);
-- If last character in buffer matches C, erase it, otherwise no effect
procedure Write_Eol;
-- Write an end of line (whatever is required by the system in use, e.g.
-- CR/LF for DOS, or LF for Unix) to the standard output file. This routine
-- also empties the line buffer, actually writing it to the file. Note that
-- Write_Eol is the only routine that causes any actual output to be
-- written. Trailing spaces are removed.
procedure Write_Eol_Keep_Blanks;
-- Similar as Write_Eol, except that trailing spaces are not removed
procedure Write_Int (Val : Int);
-- Write an integer value with no leading blanks or zeroes. Negative values
-- are preceded by a minus sign).
procedure Write_Spaces (N : Nat);
-- Write N spaces
procedure Write_Str (S : String);
-- Write a string of characters to the standard output file. Note that
-- end of line is normally handled separately using WRITE_EOL, but it is
-- allowable for the string to contain LF (but not CR) characters, which
-- are properly interpreted as end of line characters. The string may also
-- contain horizontal tab characters.
procedure Write_Line (S : String);
-- Equivalent to Write_Str (S) followed by Write_Eol;
function Last_Char return Character;
-- Returns last character written on the current line, or null if the
-- current line is (so far) empty.
procedure Delete_Last_Char;
-- Deletes last character written on the current line, no effect if the
-- current line is (so far) empty.
function Column return Pos;
pragma Inline (Column);
-- Returns the number of the column about to be written (e.g. a value of 1
-- means the current line is empty).
-------------------------
-- Buffer Save/Restore --
-------------------------
-- This facility allows the current line buffer to be saved and restored
type Saved_Output_Buffer is private;
-- Type used for Save/Restore_Buffer
Buffer_Max : constant := Hostparm.Max_Line_Length;
-- Maximal size of a buffered output line
function Save_Output_Buffer return Saved_Output_Buffer;
-- Save current line buffer and reset line buffer to empty
procedure Restore_Output_Buffer (S : Saved_Output_Buffer);
-- Restore previously saved output buffer. The value in S is not affected
-- so it is legitimate to restore a buffer more than once.
--------------------------
-- Debugging Procedures --
--------------------------
-- The following procedures are intended only for debugging purposes,
-- for temporary insertion into the text in environments where a debugger
-- is not available. They all have non-standard very short lower case
-- names, precisely to make sure that they are only used for debugging.
procedure w (C : Character);
-- Dump quote, character, quote, followed by line return
procedure w (S : String);
-- Dump string followed by line return
procedure w (V : Int);
-- Dump integer followed by line return
procedure w (B : Boolean);
-- Dump Boolean followed by line return
procedure w (L : String; C : Character);
-- Dump contents of string followed by blank, quote, character, quote
procedure w (L : String; S : String);
-- Dump two strings separated by blanks, followed by line return
procedure w (L : String; V : Int);
-- Dump contents of string followed by blank, integer, line return
procedure w (L : String; B : Boolean);
-- Dump contents of string followed by blank, Boolean, line return
private
-- Note: the following buffer and column position are maintained by the
-- subprograms defined in this package, and cannot be directly modified or
-- accessed by a client.
Buffer : String (1 .. Buffer_Max + 1) := (others => '*');
for Buffer'Alignment use 4;
-- Buffer used to build output line. We do line buffering because it is
-- needed for the support of the debug-generated-code option (-gnatD). Note
-- any attempt to write more output to a line than can fit in the buffer
-- will be silently ignored. The alignment clause improves the efficiency
-- of the save/restore procedures.
Next_Col : Positive range 1 .. Buffer'Length + 1 := 1;
-- Column about to be written
type Saved_Output_Buffer is record
Buffer : String (1 .. Buffer_Max + 1);
Next_Col : Positive;
Cur_Indentation : Natural;
end record;
end Output;
|