Clinton Gladstone wrote: 
On Thu, Nov 5, 2009 at 7:04 PM, Gert Münzel <Gert.Muenzel@netcologne.de> wrote:

  
The  "BUS US-127" is simply to long for displaying it in a highway
shield on GPS.
Isn't there a way dealing with this via stylefile?. e.g looking up the
content of REF and checking if there is a "BUS " at the beginning and
then cutting of this "BUS " so that only "US-127" remains  which then is
displayable ?
Just an idea of a poor man having less experience with style files.
    

At the moment, this is not possible. I believe we did have some
discussion about allowing regular expressions in the style files, but
the approach and necessary syntax seemed somewhat unwieldy.

Also, in this example, I think the "BUS" in "BUS US-127" stands for
"Business Loop", which is distinct from the main "US-127", so dropping
the "BUS" could be potentially misleading.

We certainly seem to have a problem, because it is hard to determine
exactly what is reasonable to display in the highway shields. This can
be quite subjective too. Right now with the code, I am getting things
like "Südring" appearing as shields, which doesn't really seem right.
(This is why I thought about lowering the limit for alpha-only
strings.)

Let's do some more thinking about a flexible solution.

Cheers.
I think we need a special file where one can exclude words foremost (besides of course in-built removal on non-displayable characters, spaces,...)
Of people put things like "bicycle route 34" into the ref, so there would be the need for a file where one can define words to be dropped (i.e. "bicycle route").
The same filter would be nice for names (e.g. checking after applying the style-file whether no words are two times inside the name - often where well known routes are passing, streets / ways simpy get the name of the route (be it official, local name for that street, or because mapper thinks better some name than none...) So if you add the route name to the name of the street you get things like "Donauradweg Donauradweg Noe section 5) (but section 5 will be in reference too) or ref that is added to a relation as ref="" but also already inside the name as  "name (ref)" .

So
a) ref should be reduced for the highway shield,
b) ref should be added to name (if specified in style-file) but a check should be carried out that no duplicate information is entered.
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