Hi,
Gary Furnish wrote:
> Ok, I have a working patch, but it keeps failing in lxml in rather
> mysterious ways (after fixing your reported bugs)
> cdef extern from "lxml.etree_api.h":
>
> # first function to call!
> cdef int import_lxml__etree() except -1
>
> cdef class lxml.etree._Document [ object LxmlDocument ]:
> cdef tree.xmlDoc* _c_doc
>
> cdef class lxml.etree._Element [ object LxmlElement ]:
> cdef _Document _doc
> cdef tree.xmlNode* _c_node
>
> cdef class lxml.etree.ElementBase(_Element) [ object LxmlElementBase ]:
> pass
>
> Can you elaborate on how exactly this works? It is by far the most
> mysterious code I have ever seen in Cython.
Cython generates a header file for the lxml.etree module ("lxml.etree_api.h")
that contains the "public" extension classes (or all? don't remember) and the
"public api" functions. The code excerpt above is from a .pxd file that
redefines the classes and functions used in lxml as a public API, so that
other Cython modules (especially lxml.objectify) can call into lxml.etree. The
advantage is that the API does not contain the C methods of the types, which
lxml does not export.
Does that make it clearer?
Stefan
_______________________________________________
Cython-dev mailing list
[email protected]
http://codespeak.net/mailman/listinfo/cython-dev
