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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: What about a glob standard method in Ada.Command_Line ?
Date: Wed, 25 Aug 2010 23:32:26 +0200
Organization: Ada @ Home
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Date: 2010-08-25T23:32:26+02:00
List-Id: <comp.lang.ada>

Le Wed, 25 Aug 2010 23:05:43 +0200, (see below)  =

<yaldnif.w@blueyonder.co.uk> a =C3=A9crit:
>  <http://developer.apple.com/mac/library/documentation/FileManagement/=
Concep
> tual/understanding_utis/understand_utis_conc/understand_utis_conc.html=
#//app
> le_ref/doc/uid/TP40001319-CH202-CHDHIJDE>

I am quoting the above document:

    A key advantage of uniform type identifiers over other type
    identification methods is that they are declared in a conformance
    hierarchy. A conformance hierarchy is analogous to a class hierarchy=

    in object-oriented programming. Instead of =E2=80=9Ctype A conforms =
to
    type B,=E2=80=9D you can also think of this as =E2=80=9Call instance=
s of type A
    are also instances of type B.=E2=80=9D

This is indeed the most logical way to handle file types. Would be nice =
as  =

a public standard, but would require this to be followed, which is anoth=
er  =

affair (what I do not enjoy with the Windows way, is the too much freque=
nt  =

clashes with file extensions, and as soon as a clash is there, this make=
  =

the given file extension mostly unusable).

-- =

* 3 lines of concise statements is readable, 10 pages of concise  =

statements is unreadable ;
* 3 lines of verbose statements may looks unuseful, 10 pages of verbose =
 =

statements will never looks too much pedantic