[mapserver-users] WMS SLD Troubles

[Frank Broniewski]

Hello,

We're using a OpenStreetMap Postgis database as a source for our 
geo-servers. We want to provide WMS and WFS services on the data. In 
order to do the styling only once, we are using SLDs, which works mostly 
fine.

One of our layers does not render as a WMS, it throws a
"msEvalRegex(): Regular expression error. String failed expression 
test." Error during execution.

We identified the layer, and it's the one rendering post boxes. The 
corresponding SLD definition is using a filter:


    <Filter>
     <PropertyIsEqualTo>
      <PropertyName>amenity</PropertyName>
      <Literal>post_office</Literal>
     </PropertyIsEqualTo>
    </Filter>


Using debug-level 5, the mapfile after SLD application looks like

    # ...
    # more definitions
    # ...
    CLASSITEM "amenity"
    DATA "nway FROM
            (SELECT way as nway, osm_id, amenity, name
                FROM planet_osm_point
                    WHERE amenity='post_box'
                                                OR amenity='post_office'
            )
           as foo using unique osm_id using SRID=900913"
    # ...
    # more definitions
    # ...
    CLASS
      NAME "Unknown"
      EXPRESSION ("[amenity]" = "post_box")
      STYLE
        ANGLE 360
        COLOR 0 0 0
        SIZE 40
        SYMBOL "http://192.168.0.111:8502/sld/img/briefkasten.png";
        WIDTH 1
      END
    END


We simply can't figure out, what might be the problem here. The whole 
issue seem to be related to the filter element, removing it makes the 
layer render. Using the generated map layer, rendering fails with the 
same error.
So I would be happy if someone with more experience with SLDs can give 
me a hint about whats going wrong here.


Frank



--
Frank BRONIEWSKI

METRICO s.à r.l.
géomètres
technologies d'information géographique
rue des Romains 36
L-5433 NIEDERDONVEN

tél.: +352 26 74 94 - 28
fax.: +352 26 74 94 99
http://www.metrico.lu
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