[aprssig] Object Naming Conventions
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Fri Feb 24 18:39:15 CST 2012
On 2/24/2012 7:35 PM, Bob Bruninga wrote:
>> If I had to call out a set that I'd see as visually unambiguous,
>> not confused with part of a packet layout, and foreseeably...
>> useful in object naming, I'd give a thumbs-up to:
> - +=@#$%^&()~
>> (Yes, that's a space between - and +).
> Great. But I am uncomfortable allowing the space. I never intended for a
> space to be included in a name. Unfortunately DSTAR had no choice so I
> guess we have to allow it just for them?
We could always write it up as "discouraged" but retained for backward
compatibility with DSTAR-generated objects?
> What I do not understand is why the APRS spec for ITEMS had the prohibition
> against using the underscore in the name. That is one of the most common
> ASCII character that is often included in names. Any ideas as to why we
> discluded them?
Because the item name is a variable length as opposed to the fixed 9
characters of an object. And the final delimiter is either a shriek (!)
(good) or an underscore (_) (killed), so neither of those characters can
ever be in an item name or it will serve to truncate the name to a
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
PS. The format is on page 59 of aprs101.pdf.
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