[mkgmap-dev] [PATCH] Alpha code for Highway Symbols

Mon Apr 6 16:52:48 BST 2009

On Mon, Apr 6, 2009 at 3:28 PM, Toby Speight <T.M.Speight.90 at cantab.net> wrote:

> Clinton> 2. A hack in Element.java, which removes a space if it is the
> Clinton>    second character of the highway name.
>
> Perhaps the hack should be to remove spaces (or replace with
> no-break-space (U+0080) if that works) in 'ref' values when
> substituting?  And the non-hack to write a filter action to do so?  I
> could have a look at this if you like.

Since I probably won't have time to work on this until the weekend, I
certainly have no objections if you or anyone looks at this and
proposes something better than my ugly hack. ;-)

Regarding the syntax for hex characters in the style file, I wonder if
allowing arbitrary hex chars is an appropriate solution.

- As far as I know, there are a limited number of known control
characters which make sense for inserting into element names.

- The codes for the same symbols vary depending on the 6 or 8 (or 10?)
bit encoding for the label file.

  This would mean that different style files would have to be used
depending on the encoding options used when invoking mkgmap.

- Would it be more elegant to have something like ${motorway-symbol}
in the style file, and coding to make the appropriate translations?

Of course, if there are many more potential hex-codes that could be
inserted, this approach would be nonsense. It would also be
unnecessary if using the same style file for 6 and 8 bit encoding is
an unrealistic use case.

What do you think?

Cheers.