----------------------------------------------------------------- --------------- -- -- -- OCARINA COMPONENTS -- -- -- -- O U T P U T -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2007, GET-Telecom Paris. -- -- -- -- Ocarina is free software; you can redistribute it and/or modify -- -- it under terms of the GNU General Public License as published by the -- -- Free Software Foundation; either version 2, or (at your option) any -- -- later version. Ocarina is distributed in the hope that it will be -- -- useful, but WITHOUT 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 Ocarina; see file COPYING. -- -- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth -- -- Floor, Boston, MA 02111-1301, 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. -- -- -- -- Ocarina is maintained by the Ocarina team -- -- (ocarina-users@listes.enst.fr) -- -- -- ------------------------------------------------------------------------------ -- 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 Sprintf.Print_Eol). with GNAT.OS_Lib; with Types; use Types; package Output is pragma elaborate_body (Output); ----------------- -- Subprograms -- ----------------- procedure Set_Output (New_Output : GNAT.OS_Lib.File_Descriptor); -- Sets subsequent output to appear on the given file 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). 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). Output to standard output is the default mode before -- any call to either of the Set procedures. function Current_Output return GNAT.OS_Lib.File_Descriptor; -- Return the current output procedure Write_Char (C : Character); -- Write one character to the standard output file. Note that the -- character should not be LF or CR (use Write_Eol for end of line) procedure Write_Eol (N : Natural := 1); -- 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. 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_Str (S : String); -- Write a string of characters to the standard output file. Note that -- end of line is handled separately using WRITE_EOL, so the string -- should not contain either of the characters LF or CR, but it may -- contain horizontal tab characters. procedure Write_Line (S : String); -- Equivalent to Write_Str (S) followed by Write_Eol; function Column return nat; 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). Space_Increment : Natural := 2; N_Space : Natural := 0; procedure Decrement_Indentation; procedure Increment_Indentation; procedure Set_Space_Increment (Value : Natural); procedure Write_Indentation (Offset : Integer := 0); procedure Write_Space; end Output;