------------------------------------------------------------------------------ -- -- -- GNAT ncurses Binding -- -- -- -- Terminal_Interface.Curses.Termcap -- -- -- -- B O D Y -- -- -- ------------------------------------------------------------------------------ -- Copyright (c) 2000-2006,2009 Free Software Foundation, Inc. -- -- -- -- Permission is hereby granted, free of charge, to any person obtaining a -- -- copy of this software and associated documentation files (the -- -- "Software"), to deal in the Software without restriction, including -- -- without limitation the rights to use, copy, modify, merge, publish, -- -- distribute, distribute with modifications, sublicense, and/or sell -- -- copies of the Software, and to permit persons to whom the Software is -- -- furnished to do so, subject to the following conditions: -- -- -- -- The above copyright notice and this permission notice shall be included -- -- in all copies or substantial portions of the Software. -- -- -- -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -- -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -- -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -- -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -- -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -- -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR -- -- THE USE OR OTHER DEALINGS IN THE SOFTWARE. -- -- -- -- Except as contained in this notice, the name(s) of the above copyright -- -- holders shall not be used in advertising or otherwise to promote the -- -- sale, use or other dealings in this Software without prior written -- -- authorization. -- ------------------------------------------------------------------------------ -- Author: Juergen Pfeifer, 1996 -- Version Control: -- $Revision: 1.12 $ -- $Date: 2009/12/26 17:38:58 $ -- Binding Version 01.00 ------------------------------------------------------------------------------ with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux; with Interfaces.C; use Interfaces.C; with Interfaces.C.Strings; use Interfaces.C.Strings; package body Terminal_Interface.Curses.Termcap is function Get_Entry (Name : String) return Boolean is function tgetent (name : char_array; val : char_array) return C_Int; pragma Import (C, tgetent, "tgetent"); NameTxt : char_array (0 .. Name'Length); Length : size_t; ignored : constant char_array (0 .. 0) := (0 => nul); result : C_Int; begin To_C (Name, NameTxt, Length); result := tgetent (char_array (ignored), NameTxt); if result = -1 then raise Curses_Exception; else return Boolean'Val (result); end if; end Get_Entry; ------------------------------------------------------------------------------ function Get_Flag (Name : String) return Boolean is function tgetflag (id : char_array) return C_Int; pragma Import (C, tgetflag, "tgetflag"); Txt : char_array (0 .. Name'Length); Length : size_t; begin To_C (Name, Txt, Length); if tgetflag (Txt) = 0 then return False; else return True; end if; end Get_Flag; ------------------------------------------------------------------------------ procedure Get_Number (Name : String; Value : out Integer; Result : out Boolean) is function tgetnum (id : char_array) return C_Int; pragma Import (C, tgetnum, "tgetnum"); Txt : char_array (0 .. Name'Length); Length : size_t; begin To_C (Name, Txt, Length); Value := Integer (tgetnum (Txt)); if Value = -1 then Result := False; else Result := True; end if; end Get_Number; ------------------------------------------------------------------------------ procedure Get_String (Name : String; Value : out String; Result : out Boolean) is function tgetstr (id : char_array; buf : char_array) return chars_ptr; pragma Import (C, tgetstr, "tgetstr"); Txt : char_array (0 .. Name'Length); Length : size_t; Txt2 : chars_ptr; type t is new char_array (0 .. 1024); -- does it need to be 1024? Return_Buffer : constant t := (others => nul); begin To_C (Name, Txt, Length); Txt2 := tgetstr (Txt, char_array (Return_Buffer)); if Txt2 = Null_Ptr then Result := False; else Value := Fill_String (Txt2); Result := True; end if; end Get_String; function Get_String (Name : String) return Boolean is function tgetstr (Id : char_array; buf : char_array) return chars_ptr; pragma Import (C, tgetstr, "tgetstr"); Txt : char_array (0 .. Name'Length); Length : size_t; Txt2 : chars_ptr; type t is new char_array (0 .. 1024); -- does it need to be 1024? Phony_Txt : constant t := (others => nul); begin To_C (Name, Txt, Length); Txt2 := tgetstr (Txt, char_array (Phony_Txt)); if Txt2 = Null_Ptr then return False; else return True; end if; end Get_String; ------------------------------------------------------------------------------ function TGoto (Cap : String; Col : Column_Position; Row : Line_Position) return Termcap_String is function tgoto (cap : char_array; col : C_Int; row : C_Int) return chars_ptr; pragma Import (C, tgoto); Txt : char_array (0 .. Cap'Length); Length : size_t; begin To_C (Cap, Txt, Length); return Termcap_String (Fill_String (tgoto (Txt, C_Int (Col), C_Int (Row)))); end TGoto; end Terminal_Interface.Curses.Termcap;