[mkgmap-dev] actual style rules

Wed Jul 22 10:19:54 BST 2020

Hi,

with a old mkgmap version (mkgmap-r4286) i use a rule like that (i use my 
own classification for polygons):

area_building=""                { name '${addr:housenumber}' }       [0x01 
level 1]
area_building=*                 { name '${area_building}' }       [0x01 
level 2]

If in the OSM-file a line like that

    <tag k='area_building' v='my home' />

it matches and in the map i have a polygon with type 0x01 and the name 'my 
home'.
The line

    <tag k='area_building' v='' />

it matches and in the map i have a polygon with type 0x01 and the 
housenumber or nothing as name.

With the actual mkgmap version (mkgmap-r4562) this not work. With v='' i 
have no match. Is this a error or a feature ;) . How can i match this?

With best regards
Frank Stinner
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