[LSC] File Format Restrictions for Official Parts

[Travis Cobbs]

Last year's LSC didn't want any of that info in the file format spec.  It's
NOT part of the file format, and while the part library is an integral part
of the LDraw system, we felt that library-specific restrictions belonged in
their own spec.  That could change this year, but that's how things stand
right now.

--Travis

On 11/6/07, Michael Heidemann <mikeheide at web.de> wrote:

>

>  I just have had time for this job.

>

> I think we should handle this as an appendix to the existing LDraw.org

> File Format Version 1.0.0 <http://www.ldraw.org/Article218.html>

>

> Appendix I (xx-Dec-07)

>

> Restrictions of the File Format for Official Parts (or on the Parts

> Tracker)

>

>    - All files have to carry the DAT extension.

>

>

>    - The only Meta-commands that are allowed are BFC<http://www.ldraw.org/article/415>and that in the

>    Header <http://www.ldraw.org/Article398.html>.

>

>

>    - The length of the filename is limited to 25 characters (including

>    the extension) and may only contain the following characters: a-z, A-Z, 0-9,

>    _, -, and . (to avoid confusion with English grammar, comma is not permitted

>    while period (full-stop) is permitted).

>

> I think this is clear and understandable, also for not native english

> people.

>

> cu

> mikeheide

>

> William Howard schrieb:

>

> Just to be clear, all that is on the scratch pad are the sentences that

> were removed from the LDraw file spec and so need a new home finding for

> them and/or notes about what should also be mentioned in a library

> restrictions document.

>

> I have no idea why the 0.27 file spec only excluded the Write/Print meta

> command and not also step, clear, pause, etc, but I agree with Mike that we

> would be better to say what is permitted rather than what is not.

>

> Hopefully I'll have some time at the weekend to start making a proper spec

> document

>

> W

>

> ----- Original Message -----

> *From:* Michael Heidemann <mikeheide at web.de>

> *To:* LDraw Standards Committee <lsc at ldraw.org>

> *Sent:* Monday, November 05, 2007 10:27 PM

> *Subject:* Re: [LSC] File Format Restrictions for Official Parts

>

>  I agree so far, but I think the only meta command allowed should be

> comments like "0 // text" and "0 BFC [options]". This would be much easier

> to understand an no question will arise.

>

> cu

> mikeheide

>

> William Howard schrieb:

>

> One of the most pressing things we need to do is to write the File Format

> Restrictions for Official Parts spec.

>

> These were items removed from the LDraw File Format 1.0.0 Spec that relate

> to library parts and not to the general file format.

>

> Items that were removed can be found on the LSC Scratch Pad -

> http://www.ldraw.org/Article408.html

>

> No doubt there are others.

>

> William

>

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