Overview
| Comment: | s_expressions-templates-generic_discrete_render: new generic procedure for rendering values of discrete types |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
592c7cfd1ad08e58243f48d02025cd19 |
| User & Date: | nat on 2014-09-17 21:07:13 |
| Other Links: | manifest | tags |
Context
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2014-09-18
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| 20:08 | s_expressions-templates-tests: a simple tests for discrete-type templates check-in: 6f0dd49985 user: nat tags: trunk | |
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2014-09-17
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| 21:07 | s_expressions-templates-generic_discrete_render: new generic procedure for rendering values of discrete types check-in: 592c7cfd1a user: nat tags: trunk | |
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2014-09-16
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| 19:05 | s_expressions-templates-tests: new test suite for S-expression template systems check-in: f11c7d1766 user: nat tags: trunk | |
Changes
Added src/natools-s_expressions-templates-generic_discrete_render.adb version [62ec8a401e].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 |
------------------------------------------------------------------------------
-- Copyright (c) 2014, 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. --
------------------------------------------------------------------------------
procedure Natools.S_Expressions.Templates.Generic_Discrete_Render
(Output : in out Ada.Streams.Root_Stream_Type'Class;
Template : in out Lockable.Descriptor'Class;
Value : in T)
is
Current_Value : T := T'First;
Event : Events.Event := Template.Current_Event;
begin
loop
case Event is
when Events.Add_Atom =>
if Current_Value = Value then
Output.Write (Template.Current_Atom);
return;
end if;
when Events.Open_List =>
loop
Template.Next (Event);
case Event is
when Events.Add_Atom =>
Output.Write (Template.Current_Atom);
when others =>
return;
end case;
end loop;
when Events.Close_List | Events.End_Of_Input | Events.Error =>
exit;
end case;
Template.Next (Event);
Current_Value := T'Succ (Current_Value);
end loop;
Output.Write (To_Atom (Default_Image (Value)));
end Natools.S_Expressions.Templates.Generic_Discrete_Render;
|
Added src/natools-s_expressions-templates-generic_discrete_render.ads version [6aed9b558e].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | ------------------------------------------------------------------------------ -- Copyright (c) 2014, 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. -- ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ -- Natools.S_Expressions.Templates.Generic_Discrete_Render provides a -- -- S-expression template renderer for discrete types. -- -- The template is a list of atoms, representing images in the order of the -- -- formal discrete type, optionally followed by a list whose atoms are -- -- concatenated to form a fallback image for all others values. When -- -- fallback image is not provided, formal Default_Image function is used. -- ------------------------------------------------------------------------------ with Ada.Streams; with Natools.S_Expressions.Lockable; generic type T is (<>); with function Default_Image (Object : T) return String is T'Image; with function "=" (Left, Right : T) return Boolean is <>; procedure Natools.S_Expressions.Templates.Generic_Discrete_Render (Output : in out Ada.Streams.Root_Stream_Type'Class; Template : in out Lockable.Descriptor'Class; Value : in T); pragma Preelaborate (Natools.S_Expressions.Templates.Generic_Discrete_Render); |