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143 | -------------------------------------------------------------------------------
-- Copyright 2021, The Trendy Terminal Developers (see AUTHORS file)
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
-- http://www.apache.org/licenses/LICENSE-2.0
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
-------------------------------------------------------------------------------
with Interfaces.C.Strings;
with System;
package Trendy_Terminal.Mac is
---------------------------------------------------------------------------
-- Interfacing with C
---------------------------------------------------------------------------
-- Crash course in how this works.
-- https://en.wikibooks.org/wiki/Ada_Programming/Types/access#Access_vs._System.Address
type BOOL is new Interfaces.C.int;
type FD is new Interfaces.C.int;
type FILE_Ptr is new System.Address;
function fileno (Stream : FILE_Ptr) return FD with
Import => True,
Convention => C;
function isatty (File_Descriptor : FD) return BOOL with
Import => True,
Convention => C;
stdin : aliased FILE_Ptr;
stdout : aliased FILE_Ptr;
stderr : aliased FILE_Ptr;
pragma Import (C, stdin, "__stdinp");
pragma Import (C, stdout, "__stdoutp");
pragma Import (C, stderr, "__stderrp");
NCCS : constant := 20;
type tcflag_t is new Interfaces.C.unsigned_long;
type cc_t is new Interfaces.C.unsigned_char;
type speed_t is new Interfaces.C.long;
type cc_array is array (Natural range 0 .. NCCS - 1) of cc_t
with Convention => C;
--!pp off
type c_lflag_bits is (
ECHOKE ,
ECHOE ,
ECHOK ,
ECHO ,
ECHONL ,
ECHOPRT ,
ECHOCTL ,
ISIG ,
ICANON ,
ALTWERASE ,
IEXTEN ,
EXTPROC ,
Unused1 ,
Unused2 ,
TOSTOP ,
FLUSHO ,
Unused3 ,
NOKERNINFO ,
Unused4 ,
Unused5 ,
Unused6 ,
PENDIN ,
NOFLSH);
for c_lflag_bits use
(
ECHOKE => 16#00000001#,
ECHOE => 16#00000002#,
ECHOK => 16#00000004#,
ECHO => 16#00000008#,
ECHONL => 16#00000010#,
ECHOPRT => 16#00000020#,
ECHOCTL => 16#00000040#,
ISIG => 16#00000080#,
ICANON => 16#00000100#,
ALTWERASE => 16#00000200#,
IEXTEN => 16#00000400#,
EXTPROC => 16#00000800#,
Unused1 => 16#00100000#,
Unused2 => 16#00200000#,
TOSTOP => 16#00400000#,
FLUSHO => 16#00800000#,
Unused3 => 16#01000000#,
NOKERNINFO => 16#02000000#,
Unused4 => 16#04000000#,
Unused5 => 16#08000000#,
Unused6 => 16#10000000#,
PENDIN => 16#20000000#,
NOFLSH => 16#80000000#
);
--!pp on
pragma Warnings (Off, "bits of *unused");
type c_lflag_t is array (c_lflag_bits) of Boolean with
Pack,
Size => tcflag_t'Size;
pragma Warnings (On, "bits of *unused");
type Termios is record
c_iflag : tcflag_t;
c_oflag : tcflag_t;
c_cflag : tcflag_t;
c_lflag : c_lflag_t;
c_line : cc_t;
c_cc : cc_array;
c_ispeed : speed_t;
c_ospeed : speed_t;
end record with
Convention => C;
function tcgetattr (File_Descriptor : FD; Terminal : System.Address) return BOOL with
Import => True,
Convention => C;
type Application_Time is
(TCSANOW, -- immediate effect
TCSADRAIN, -- after all output written
TCSAFLUSH -- like drain, except input received as well
);
for Application_Time use (TCSANOW => 0, TCSADRAIN => 1, TCSAFLUSH => 2);
function tcsetattr
(File_Descriptor : FD; Effect_Time : Application_Time; Terminal : System.Address) return BOOL with
Import => True,
Convention => C;
end Trendy_Terminal.Mac;
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