Parseable specifications of mapnik - Node.js module

 mapnik-reference specifies mapnik structures, styles, symbolizers,
 and the list of their properties, in JSON format.
 It is useful for building parsers, tests, compilers, and syntax
 highlighting or syntax checking.
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 Mapnik is a C++/Python toolkit for developing GIS applications.
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 Node.js is an event-based server-side javascript engine.