Add syntax highlighting for DOAP files
Problem to solve
Syntax highlighting for DOAP files, which are based on RDF/XML according to Wikipedia https://en.wikipedia.org/wiki/DOAP.
Further details
According to Wikipedia, numerous FOSS projects use DOAP. This includes GNOME, which is one of the notable Gitlab CE users.
"There are currently generators, validators, viewers, and converters to enable more projects to be able to be included in the semantic web. Freshmeat's 43,000 projects are now available published with DOAP. It is currently used in the Mozilla Foundation's project page and in several other software repositories, notably the Python Package Index."
Major properties include: doap:homepage, doap:developer, doap:programming-language, doap:os
example:
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:doap="http://usefulinc.com/ns/doap#">
<doap:Project>
<doap:name>Example project</doap:name>
<doap:homepage rdf:resource="http://example.com" />
<doap:programming-language>javascript</doap:programming-language>
<doap:license rdf:resource="http://example.com/doap/licenses/gpl"/>
</doap:Project>
</rdf:RDF>
Edited by James Ramsay (ex-GitLab)