/usr/share/ada/adainclude/texttools/common.ads is in libtexttools4-dev 2.1.0-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- COMMON --
-- --
-- Part of TextTools --
-- Designed and Programmed by Ken O. Burtch --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright (C) 1999-2007 Ken O. Burtch --
-- --
-- This 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 2, or (at your option) any later ver- --
-- sion. This 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with this; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- This is maintained at http://www.pegasoft.ca/tt.html --
-- --
------------------------------------------------------------------------------
with Ada.Containers.Indefinite_Vectors;
with Ada.Containers.Vectors;
with Ada.Containers.Ordered_Sets;
with Ada.Strings.Unbounded;
package Common is
--- Compile Flags
--
-- Differentiate between compiling the finder (ie. the server that first
-- runs and establishes the environment and contains routines to answer
-- all questions) from the normal applications running under it (ie. the
-- clients which must negotiate with the finder for control of the screen.
IsFinder : constant boolean := true; -- true if compiling for a server
pragma export( C, IsFinder, "is_finder" );
---> Basic Rectangles
--
-- Rectangles are used all over.
subtype Points is positive;
type ARect is record
left, top, right, bottom : integer;
end record;
nullRect : constant ARect := (0, 0, -1, -1);
pragma export( C, nullRect, "null_rect" );
procedure SetRect( r : out ARect; left, top, right, bottom : integer );
pragma export( C, SetRect, "set_rect" );
procedure OffsetRect( r : in out ARect; dx, dy : integer );
function OffsetRect( r : in ARect; dx, dy : integer ) return ARect;
pragma export( C, offsetRect, "offset_rect" );
procedure InsetRect( r : in out ARect; dx, dy : integer );
function InsetRect( r : in ARect; dx, dy : integer ) return ARect;
pragma export( C, insetRect, "inset_rect" );
function InsideRect( Inner, Outer : in ARect ) return boolean;
function InRect( x, y : integer; r : ARect ) return boolean;
function IsEmptyRect( r : ARect ) return boolean;
-- Lists of Bounded Strings
package StrList is new Ada.Containers.Indefinite_Vectors (Positive, String);
---> Lists of Booleans
package BooleanList is new Ada.Containers.Vectors (Positive, Boolean);
---> Lists of Rectangles
function RectOrder( left, right : ARect ) return boolean;
package RectList is new Ada.Containers.Ordered_Sets (ARect, Rectorder);
---> Various Pointer Types
--
-- These are listed for convenience.
type BooleanPtr is access all Boolean;
type IntegerPtr is access all Integer;
type Short_IntegerPtr is access all Short_Integer;
type Long_IntegerPtr is access all Long_Integer;
type FloatPtr is access all Float;
type RectPtr is access all ARect;
---> Error Handling
---
--- To get the best of all worlds, I'm providing the following vars/
--- procs. If RaiseErrors is used, all calls to Error will result
--- in a GeneralError being raised (the error code is in LastError).
--- If TrapErrors (default) is used, all calls to Error will save the
--- error code in LastError and return and it's up to the program to
--- check to see if an error occurred. If you need to save the error
--- handling method of the caller, save the value of RaisingErrors.
--- (I was going to create a stack, but that's slower and more work.
--- This is better when memory is low, and often the flag doesn't need
--- saving.) If your subprogram uses these routines, call NoError first
--- to clear any outstanding error codes.
---
--- Core Error Codes
---
--- Listed here for convenience and to ensure they are unique
---
--- Core System Errors
type AnErrorCode is new short_integer range -1..short_integer'last;
subtype ACoreErrorCode is AnErrorCode range -1..499;
subtype AnUserErrorCode is AnErrorCode range 500..AnErrorCode'last;
TT_NotYetWritten : constant ACoreErrorCode := -1; -- routine not yet written
TT_OK : constant ACoreErrorCode := 0; -- no error
TT_MemoryLeak : constant ACoreErrorCode := 10; -- memory not deallocated
TT_LowMemory : constant ACoreErrorCode := 11; -- low on memory
pragma export( C, TT_NotYetWritten, "TT_not_yet_written" );
pragma export( C, TT_OK, "TT_ok" );
pragma export( C, TT_MemoryLeak, "TT_memory_leak" );
pragma export( C, TT_LowMemory, "TT_low_memory" );
--- Core System and related
TT_SystemError : constant ACoreErrorCode := 100; -- command failed
TT_ParamError : constant ACoreErrorCode := 101; -- param too long
TT_FileExistance : constant ACoreErrorCode := 110; -- file found/not found
TT_PathExistance : constant ACoreErrorCode := 111; -- path found/not found
TT_VolExistance : constant ACoreErrorCode := 112; -- volume found/not found
TT_DevExistance : constant ACoreErrorCode := 113; -- device found/not found
TT_FileStatus : constant ACoreErrorCode := 114; -- open / not open
TT_FileLocking : constant ACoreErrorCode := 115; -- file is locked/unlocked
TT_FileAccess : constant ACoreErrorCode := 116; -- file is un/accessible
TT_VolLocking : constant ACoreErrorCode := 117; -- volume readonly or not
TT_VolAccess : constant ACoreErrorCode := 118; -- volume is un/accessible
TT_VolFull : constant ACoreErrorCode := 119; -- no space on disk
TT_DevSequential : constant ACoreErrorCode := 120; -- tape device
TT_IOError : constant ACoreErrorCode := 121; -- hardware or media error
TT_PathError : constant ACoreErrorCode := 122; -- bad path for file sys
TT_FileBounds : constant ACoreErrorCode := 123; -- position out of bounds
TT_OSOld : constant ACoreErrorCode := 130; -- UNIX too old
TT_OSService : constant ACoreErrorCode := 131; -- UNIX service missing
TT_Integrity : constant ACoreErrorCode := 140; -- integrity test failure
TT_TestData : constant ACoreErrorCode := 141; -- test data in operation
pragma export( C, TT_SystemError, "TT_system_error" );
pragma export( C, TT_ParamError, "TT_param_error" );
pragma export( C, TT_FileExistance, "TT_file_existance" );
pragma export( C, TT_PathExistance, "TT_path_existance" );
pragma export( C, TT_VolExistance, "TT_vol_existance" );
pragma export( C, TT_DevExistance, "TT_dev_existance" );
pragma export( C, TT_FileStatus, "TT_file_status" );
pragma export( C, TT_FileLocking, "TT_file_locking" );
pragma export( C, TT_FileAccess, "TT_file_access" );
pragma export( C, TT_VolLocking, "TT_vol_locking" );
pragma export( C, TT_VolAccess, "TT_vol_access" );
pragma export( C, TT_VolFull, "TT_vol_full" );
pragma export( C, TT_DevSequential, "TT_dev_sequential" );
pragma export( C, TT_IOError, "TT_io_error" );
pragma export( C, TT_PathError, "TT_path_error" );
pragma export( C, TT_FileBounds, "TT_file_bounds" );
pragma export( C, TT_OSOld, "TT_os_old" );
pragma export( C, TT_OSService, "TT_os_service" );
pragma export( C, TT_Integrity, "TT_integrity" );
pragma export( C, TT_TestData, "TT_test_data" );
---> Interpreter Errors
-- (not used)
TT_UnexpErr : constant ACoreErrorCode := 200; -- unexpected character
TT_ParanErr : constant ACoreErrorCode := 201; -- Bad paranthesis
TT_OperandErr : constant ACoreErrorCode := 202; -- missing operand
TT_SyntaxErr : constant ACoreErrorCode := 203; -- bad syntax
TT_TooCompErr : constant ACoreErrorCode := 204; -- formula too complex
TT_ClashErr : constant ACoreErrorCode := 205; -- type clash
TT_NotDeclErr : constant ACoreErrorCode := 206; -- ident not declared
TT_EOProgErr : constant ACoreErrorCode := 207; -- end of prog encountered
TT_QuoteErr : constant ACoreErrorCode := 208; -- bad quote marks
TT_DivZeroErr : constant ACoreErrorCode := 209; -- divide by zero
---> Core Userio Errors
---> Core Control Errors
---> Core Window Errors
TT_WindowExistance : constant ACoreErrorCode := 160; --window found/not
TT_NoControls : constant ACoreErrorCode := 161; --no controls in window
TT_ControlExistance: constant ACoreErrorCode := 162;
TT_NoDialogTaskCB : constant ACoreErrorCode := 163; --no manual handler
pragma export( C, TT_WIndowExistance, "TT_window_existance" );
pragma export( C, TT_NoControls, "TT_no_controls" );
pragma export( C, TT_ControlExistance, "TT_control_existance" );
pragma export( C, TT_NoDialogTaskCB, "TT_no_dialog_task_cb" );
---> Error Variables/Functions
GeneralError : exception; -- exception raised by Error();
LastError : AnErrorCode; -- last Error error code
RaisingErrors : boolean; -- TRUE if GeneralError will be raised
procedure NoError; -- clear LastError
pragma Inline( NoError );
pragma Export( C, NoError, "no_error" );
procedure Error( ErrorCode : AnErrorCode ); -- log an error
pragma Inline( Error );
pragma Export( C, Error, "error" );
procedure RaiseErrors; -- cause Error to raise a GeneralError
pragma Inline( RaiseErrors );
procedure TrapErrors; -- cause Error to return normally
pragma Inline( TrapErrors );
function RaiseErrors return boolean;
function TrapErrors return boolean;
procedure RestoreRaising( oldflag : boolean );
pragma Inline( RestoreRaising );
--- Housekeeping
--
ProgramName : Ada.Strings.Unbounded.Unbounded_String;
ShortProgramName : Ada.Strings.Unbounded.Unbounded_String;
-- Short program name is used for $SYS directory in os package.
-- and (when I get to it) temp file name prefix.
procedure StartupCommon( theProgramName, theShortProgramName : string );
procedure IdleCommon( IdlePeriod : in Duration );
procedure ShutdownCommon;
pragma export( C, ShutdownCommon, "shutdown_common" );
end Common;
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