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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: 
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Date: Sun, 17 Mar 2013 21:50:48 +0100
Organization: Ada @ Home
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Date: 2013-03-17T21:50:48+01:00
List-Id: <comp.lang.ada>

Hi people,

May looks a bit off=E2=80=91topic at first sight, but that may be finall=
y no more  =

off=E2=80=91topic than talking about managing sources in a particular so=
urce  =

chain, like with GNAT project files.

Those of you who know XML catalogues (the ones you use to manage documen=
t  =

types), may have noticed it's all about retrieving the effective locatio=
n  =

of a file originally designated by a unique identifier. Ex. you may use =
 =

XML catalogues to say =E2=80=9Cfoo.dtd=E2=80=9D is to be retrieved at th=
at location, of  =

all DTD whose Public Identifier starts with =E2=80=9C-//FOO=E2=80=9D may=
 be retrieved by  =

delegation to =E2=80=9Cbar.xml=E2=80=9D catalogue. Could finally be appl=
ied to Ada source  =

files too, to say the compiler =E2=80=9CFoo.Bar spec=E2=80=9D may be ret=
rieved at that  =

location, or all reference starting with =E2=80=9CFoo=E2=80=9D may be de=
legated to another  =

catalogue dedicated to the =E2=80=9CFoo=E2=80=9D package hierarchy. Note=
 the use of XML  =

catalogues, does not requires the retrieved files to be XML, only the  =

catalogues has to be.

I was just thinking that may be an option for some kind of tool=E2=80=91=
chain  =

neutral source files management based on an already widely used standard=
  =

(=E2=80=9Calready widely used standard=E2=80=9D, that's what I like with=
 it, not only  =

because that's just a standard, but also because as with many standards,=
  =

that's the result of many people's experiences with a matter).

Those of you who know XML catalogues, how do you feel this may be good a=
t  =

managing Ada sources files, or on the opposite, how do you feel this may=
  =

not be good at it? Just out of curiosity, as I feel it may be a good ide=
a,  =

while I may be wrong (thus this thread to request for comments).


-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity