-- --
-- procedure Copyright (c) Dmitry A. Kazakov --
-- Parsers.Generic_Source. Luebeck --
-- Get_Cpp_Blank Winter, 2004 --
-- Implementation --
-- Last revision : 19:13 09 Jul 2009 --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public License as --
-- published by the Free Software Foundation; either version 2 of --
-- the License, or (at your option) any later version. This library --
-- 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 along with --
-- this library; if not, write to the Free Software Foundation, --
-- Inc., 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. --
--____________________________________________________________________--
with Ada.Characters.Latin_1; use Ada.Characters.Latin_1;
with Ada.IO_Exceptions; use Ada.IO_Exceptions;
procedure Parsers.Generic_Source.Get_Cpp_Blank
( Code : in out Source_Type;
Got_It : out Boolean;
Error : out Boolean;
Error_At : out Location_Type
) is
Line : Line_Ptr_Type;
Pointer : Integer;
Last : Integer;
In_Comment : Boolean := False;
begin
Chain_Of_Blanks :
loop
Get_Line (Code, Line, Pointer, Last);
while Pointer <= Last loop
if In_Comment then
while Pointer < Last loop
if Line (Pointer..Pointer + 1) = "*/" then
Pointer := Pointer + 2;
In_Comment := False;
exit;
end if;
Pointer := Pointer + 1;
end loop;
exit when In_Comment; -- Comment does not end at this line
else
case Line (Pointer) is
when ' ' | HT | VT | FF | CR | LF =>
Pointer := Pointer + 1;
when '/' =>
exit Chain_Of_Blanks when Pointer = Last;
case Line (Pointer + 1) is
when '/' =>
exit;
when '*' =>
In_Comment := True;
Set_Pointer (Code, Pointer);
Pointer := Pointer + 2;
Set_Pointer (Code, Pointer);
Error_At := Link (Code);
when others =>
exit Chain_Of_Blanks;
end case;
when others =>
exit Chain_Of_Blanks;
end case;
end if;
end loop;
Set_Pointer (Code, Last + 1);
Next_Line (Code);
end loop Chain_Of_Blanks;
Got_It := True;
Error := False;
Set_Pointer (Code, Pointer);
exception
when End_Error =>
Got_It := False;
Error := In_Comment;
end Parsers.Generic_Source.Get_Cpp_Blank;