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gerrit.omnirom.org / android_external_libncurses / refs/heads/android-16 / . / Ada95 / src / terminal_interface-curses-termcap.adb
blob: d09457ccfec49ca2fdf248f41b9def17cefbbc05 [file] [log] [blame]
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]1------------------------------------------------------------------------------
2-- --
3-- GNAT ncurses Binding --
4-- --
5-- Terminal_Interface.Curses.Termcap --
6-- --
7-- B O D Y --
8-- --
9------------------------------------------------------------------------------
micky3879b9f5e72025-07-08 18:04:53 -0400[diff] [blame]10-- Copyright 2020 Thomas E. Dickey --
11-- Copyright 2000-2006,2009 Free Software Foundation, Inc. --
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]12-- --
13-- Permission is hereby granted, free of charge, to any person obtaining a --
14-- copy of this software and associated documentation files (the --
15-- "Software"), to deal in the Software without restriction, including --
16-- without limitation the rights to use, copy, modify, merge, publish, --
17-- distribute, distribute with modifications, sublicense, and/or sell --
18-- copies of the Software, and to permit persons to whom the Software is --
19-- furnished to do so, subject to the following conditions: --
20-- --
21-- The above copyright notice and this permission notice shall be included --
22-- in all copies or substantial portions of the Software. --
23-- --
24-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
25-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
26-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
27-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
28-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
29-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
30-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
31-- --
32-- Except as contained in this notice, the name(s) of the above copyright --
33-- holders shall not be used in advertising or otherwise to promote the --
34-- sale, use or other dealings in this Software without prior written --
35-- authorization. --
36------------------------------------------------------------------------------
37-- Author: Juergen Pfeifer, 1996
38-- Version Control:
micky3879b9f5e72025-07-08 18:04:53 -0400[diff] [blame]39-- $Revision: 1.13 $
40-- $Date: 2020/02/02 23:34:34 $
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]41-- Binding Version 01.00
42------------------------------------------------------------------------------
43
44with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
45with Interfaces.C; use Interfaces.C;
46with Interfaces.C.Strings; use Interfaces.C.Strings;
47
48package body Terminal_Interface.Curses.Termcap is
49
50 function Get_Entry (Name : String) return Boolean
51 is
52 function tgetent (name : char_array; val : char_array)
53 return C_Int;
54 pragma Import (C, tgetent, "tgetent");
55 NameTxt : char_array (0 .. Name'Length);
56 Length : size_t;
57 ignored : constant char_array (0 .. 0) := (0 => nul);
58 result : C_Int;
59 begin
60 To_C (Name, NameTxt, Length);
61 result := tgetent (char_array (ignored), NameTxt);
62 if result = -1 then
63 raise Curses_Exception;
64 else
65 return Boolean'Val (result);
66 end if;
67 end Get_Entry;
68
69------------------------------------------------------------------------------
70 function Get_Flag (Name : String) return Boolean
71 is
72 function tgetflag (id : char_array) return C_Int;
73 pragma Import (C, tgetflag, "tgetflag");
74 Txt : char_array (0 .. Name'Length);
75 Length : size_t;
76 begin
77 To_C (Name, Txt, Length);
78 if tgetflag (Txt) = 0 then
79 return False;
80 else
81 return True;
82 end if;
83 end Get_Flag;
84
85------------------------------------------------------------------------------
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]86 procedure Get_Number (Name : String;
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]87 Value : out Integer;
88 Result : out Boolean)
89 is
90 function tgetnum (id : char_array) return C_Int;
91 pragma Import (C, tgetnum, "tgetnum");
92 Txt : char_array (0 .. Name'Length);
93 Length : size_t;
94 begin
95 To_C (Name, Txt, Length);
96 Value := Integer (tgetnum (Txt));
97 if Value = -1 then
98 Result := False;
99 else
100 Result := True;
101 end if;
102 end Get_Number;
103
104------------------------------------------------------------------------------
105 procedure Get_String (Name : String;
106 Value : out String;
107 Result : out Boolean)
108 is
109 function tgetstr (id : char_array;
110 buf : char_array) return chars_ptr;
111 pragma Import (C, tgetstr, "tgetstr");
112 Txt : char_array (0 .. Name'Length);
113 Length : size_t;
114 Txt2 : chars_ptr;
115 type t is new char_array (0 .. 1024); -- does it need to be 1024?
116 Return_Buffer : constant t := (others => nul);
117 begin
118 To_C (Name, Txt, Length);
119 Txt2 := tgetstr (Txt, char_array (Return_Buffer));
120 if Txt2 = Null_Ptr then
121 Result := False;
122 else
123 Value := Fill_String (Txt2);
124 Result := True;
125 end if;
126 end Get_String;
127
128 function Get_String (Name : String) return Boolean
129 is
130 function tgetstr (Id : char_array;
131 buf : char_array) return chars_ptr;
132 pragma Import (C, tgetstr, "tgetstr");
133 Txt : char_array (0 .. Name'Length);
134 Length : size_t;
135 Txt2 : chars_ptr;
136 type t is new char_array (0 .. 1024); -- does it need to be 1024?
137 Phony_Txt : constant t := (others => nul);
138 begin
139 To_C (Name, Txt, Length);
140 Txt2 := tgetstr (Txt, char_array (Phony_Txt));
141 if Txt2 = Null_Ptr then
142 return False;
143 else
144 return True;
145 end if;
146 end Get_String;
147
148------------------------------------------------------------------------------
149 function TGoto (Cap : String;
150 Col : Column_Position;
151 Row : Line_Position) return Termcap_String is
152 function tgoto (cap : char_array;
153 col : C_Int;
154 row : C_Int) return chars_ptr;
155 pragma Import (C, tgoto);
156 Txt : char_array (0 .. Cap'Length);
157 Length : size_t;
158 begin
159 To_C (Cap, Txt, Length);
160 return Termcap_String (Fill_String
161 (tgoto (Txt, C_Int (Col), C_Int (Row))));
162 end TGoto;
163
164end Terminal_Interface.Curses.Termcap;