如何强制Go的标准xml解析器读取DTD实体

Question

I'm using go's encoding/xml package to parse an XML file. When parsing a file, here's the error I get :

XML syntax error on line 16: invalid character entity ü

But the xml file references a dtd :

<!DOCTYPE dblp SYSTEM "dblp.dtd">

And that dtd itself contains the definition of that entity :

    <!ENTITY uuml    "&#252;" ><!-- small u, dieresis or umlaut mark -->

Is there a way to force Go's xml parser to parse DTDs, did I miss something somewhere or am I doomed to use a third-party xml parser ?

Answer 1

Probably not the answer you would like to hear...

You could use the Entity-field of http://golang.org/pkg/encoding/xml/#Decoder. Unfortunately I do not know of an automatic way to generate such entity maps from a dtd. But this should be straightforward to extract from the dtd. If the dtd doesn't change this might be a nice task for go generate.

If the list if entities is fixed (and small enough) I would hardcode the entity map.