[mkgmap-dev] mp/hh / km/h m or other units in maxspeed or distance keys

Tue Aug 28 12:06:59 BST 2012

On Tue, Aug 28, 2012 at 10:36:59AM +0200, Felix Hartmann wrote:
>Well it's quite a long time, there has been no discussion about this, 
>however it's more and more common to put the unit into the main key.  
>Could mkgmap do a clean up on this?
>
>It would be great if mkgmap could do the following:
>Remove any non numeric keys (and not "." or "," )  and place them into 
>a new key called mkgmap:unit=....
>Do this for maxspeed, distance, height, width (propose other keys I may 
>have missed).

I think that this should be done in the (default) style file, not in the 
mkgmap core. We already have a regexp matching operator, and if I 
remember correctly, we should also have regexp replace in the action 
rules.

But, I would wait a bit until Steve has overhauled the include mechanism 
in the style file parser.

>As I'm sure this would take quite some time, it should be an option, 
>and there should be a style-file called units_removed where you can 
>specify the keys for which mkgmap should do this.

Hmm, parameterized style rules and actions? Sort of macro or template 
expansion in the style processor?

Best regards,

	Marko