The CSS module for geoserver doesn't implement any escaping (it's on my todo
list, right up there with support for CQL filters that contain "]"...) I'll
make it conform to the usual CSS rules for escaping:
http://www.w3.org/TR/CSS2/syndata.html#escaped-characters
For Java String literals there is some escaping though: "\u2192" is the
escape sequence for the single arrow character you tried to reference in
your snippet above. Details are available at
http://java.sun.com/docs/books/jls/third_edition/html/lexical.html#3.10.6
--
David Winslow
OpenGeo - http://opengeo.org/
On Wed, Aug 17, 2011 at 2:37 AM, Andrea Aime
<[email protected]>wrote:
> On Wed, Aug 17, 2011 at 6:21 AM, jerickson <[email protected]>
> wrote:
> > Hi all!
> >
> > I am trying to reduplicate the "Showing one Way" example found in
> Andrea's
> > wonderful "GeoServer Cartographic Rendering" presentation [1] from FOSS4G
> > 2010 in code using GeoTools StyleFactory (ultimately for GeoScript). When
> I
> > run this code snippet:
> >
> > TextSymbolizer text = styleFactory.createTextSymbolizer();
> > text.setFont(styleFactory.createFont(filterFactory.literal("Lucida
> Sans"),
> > filterFactory.literal("normal"), filterFactory.literal("bold"),
> > filterFactory.literal("10")));
> > text.setLabel(filterFactory.literal("&#x2192;"));
> >
> > I get an image with labels '&#x2192;' instead of arrows (see attached
> > image line_with_arrows.png). When I write this Style to SLD I see that
> the
> > '&' has been escaped:
> >
> > <sld:TextSymbolizer>
> > <sld:Label>
> > <ogc:Literal>&amp;#x2192;</ogc:Literal>
> > </sld:Label>
> > </sld:TextSymbolizer>
> >
> > When I change the SLD to <ogc:Literal>&#x2192;</ogc:Literal> and
> > regenerate my image I get the correct result (see attached image
> > line_with_arrow_from_sld.png). I am missing something or is this a bug?
> If
> > it's a bug I can file an issue with JIRA.
>
> You're mixing up xml encoding and in memory representation.
> In memory you don't have to escape stuff as if you intended to write it
> in XML, dealing with escaping is the duty of the xml parsers/encoders.
> For example, what if we were writing the style in David's CSS instead?
> The escaping rules might be different there
>
> Cheers
> Andrea
>
>
>
> --
> -------------------------------------------------------
> Ing. Andrea Aime
> GeoSolutions S.A.S.
> Tech lead
>
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
>
> phone: +39 0584 962313
> fax: +39 0584 962313
>
> http://www.geo-solutions.it
> http://geo-solutions.blogspot.com/
> http://www.youtube.com/user/GeoSolutionsIT
> http://www.linkedin.com/in/andreaaime
> http://twitter.com/geowolf
>
> -------------------------------------------------------
>
>
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