------------------------------------------------------------------------------
-- Copyright (c) 2015-2019, Natacha Porté --
-- --
-- Permission to use, copy, modify, and distribute this software for any --
-- purpose with or without fee is hereby granted, provided that the above --
-- copyright notice and this permission notice appear in all copies. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. --
------------------------------------------------------------------------------
with Ada.Characters.Handling;
with Ada.Strings.Fixed;
package body Natools.S_Expressions.Enumeration_IO is
function To_Atom (Enumeration_Image : in String) return Atom is
Result : Atom := S_Expressions.To_Atom (Ada.Strings.Fixed.Translate
(Enumeration_Image,
Ada.Characters.Handling.To_Lower'Access));
begin
for I in Result'Range loop
if Result (I) = Character'Pos ('_') then
Result (I) := Character'Pos ('-');
end if;
end loop;
return Result;
end To_Atom;
function To_Image (Data : in Atom) return String is
Result : String := Ada.Strings.Fixed.Translate
(To_String (Data),
Ada.Characters.Handling.To_Upper'Access);
begin
for I in Result'Range loop
if Result (I) = '-' then
Result (I) := '_';
end if;
end loop;
return Result;
end To_Image;
package body Typed_IO is
function Image (T : Enum) return Atom is
begin
return To_Atom (Enum'Image (T));
end Image;
function Value (Data : Atom) return Enum is
begin
return Enum'Value (To_Image (Data));
end Value;
function Value (Data : Atom; Fallback : Enum) return Enum is
Img : constant String := To_Image (Data);
begin
return Enum'Value (Img);
exception
when Constraint_Error =>
return Fallback;
end Value;
end Typed_IO;
end Natools.S_Expressions.Enumeration_IO;