Subject:
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Re: Ldlite for OpenGL and Linux (and uppercase filenames)
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 19 Jan 2000 15:31:42 GMT
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Viewed:
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918 times
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Rui:
> > > Why don't we just define filenames are case-sensitive, and allow for an
> > ^^^^^^^^^^^^^^
> > I presume you mean "mixed case". We can't choose between
> > case-sensitive and case-insensitive.
>
> I meant exactly CASE-SENSITIVE.
> and by case-sensitive I mean "model.dat" is different from "Model.dat".
That is not possible, since some DAT renderers work with
case-insensitive file systems.
> And why can't we choose between ?
Because it is a matter of the file system and the rendering
program has to live with that.
> > I am not sure of that. There are many good reasons for
> > working with case-insensitive file systems.
>
> Could you back up that statement with some GOOD reasons?
Most languages consider a word the same no matter whether it
is written in upper or lower case.
This means that most people can't see why there is a
difference between a file named "Model" and a file named
"model".
> You can derive from a case-sensitive filename (string) un upper or lower
> case string, to suit a particular case-insensitive system (which usually
> converts to all 'lower' or all 'UPPER' case and then uses this string to
> do its deeds).
Yes.
So we can allow people to write file names _in_the_DAT_files_
however they want, _if_ we have decided how to _store_ the
files on the file system.
> But you CAN't derive from a case-INsensitive representation (all 'lower',
> all 'UPPER' or MiXeD-case) the actual pseudo correct name for a
> case-sensitive representation, since the same case-INsensitive string
> could reference distinct filenames in a case-sensitive system, You can't
> figure out which.
Correct. Therefore it is a bad idea to store files with
mixed-case names on the file system.
> Cheech, too much words to explain such a simple thing, am I'complicated or
> natural language as a long way to learn yet ? ;)
It might also be easier if you didn't have to write it in
English (but I don't understand Portugese).
> > > > My personal preference is lower case.
> > >
> > > Mine is case-insensitive.
>
> I Goofed here, I meant CASE-SENSITIVE
Can't! Too many people are running LDraw on DOS/FAT which
doesn't allow case-sensitive file names.
> > That is not an option. Our choice has to work on both
> > case-sensitive and case-insensitive file systems.
>
> Why ? If we keep the filenames different in a case-S(ensitive) systems
> than it will be fully portable to a case-I(nsensitive) systems, and will
> allow for future improvements.
Yes, but most people work on case-insensitive file systems,
and their DAT files are likely to be unusable on
case-sensitive file systems.
> > > Mixed case should be allowed (compatible with case sensitive), but
> > > all people who work on case-sensitive systems, should strive to use the
> > > correct name when referencing a file inside a .dat, or their files won't
> > > be correctly viewed.
> >
> > People using case-sensitive file systems will notice this
> > automatically. The problem is people working on
> > case-insensitive file systems, who don't think of other
> > kinds of file systems.
>
> As long as the ldraw distribution has the correct case-S representation,
> there will be no problem, and every new file submitted as official should
> be checked before release.
The LDraw distribution is currently packaged on a
case-insensitive file system (Steve, correct me if I am
wrong), so this would be very impractical.
> > All this can be handled, if we decide to store the files
> > consistently with either upper or lower case names.
>
> What would be the real benefit !
It would be possible to transfer LDraw'ings from
case-insensitive to case-sensitive file systems without
problems.
Play well,
Jacob
------------------------------------------------------------
-- E-mail: sparre@cats.nbi.dk --
-- Web...: <URL: http://hugin.ldraw.org/LEGO/Skibe/ > --
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Ldlite for OpenGL and Linux (and uppercase filenames)
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| (...) I meant exactly CASE-SENSITIVE. and by case-sensitive I mean "model.dat" is different from "Model.dat". And why can't we choose between ? It's a lot easyer to convert from a case-sensitive complient filename to case-INsensitive than the other (...) (25 years ago, 19-Jan-00, to lugnet.cad.dev)
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