[xmlroff] errors during fo:external-graphic processing

[Stefan S. <se...@sy...>]

Here are some more observations when processing fo:external-graphic
elements:

1) The 'src' attribute is an url, meaning it has to be resolved
    relative to the url base of the current node it was found in.
    However, xmlroff tries to read it as a file, i.e. relative to
    the current working directory (for example in fo-image.c:236).
    Shouldn't something like xmlBuildURI() be used to actually
    construct the correct absolute filename ?


2) I now get this error:


(process:7561): libfo-CRITICAL **: Expression evaluation error: Expression not completely evaluated: 
':image/svg+xml'
Object path: 
/FoTree[1]/root[1]/page-sequence[3]/flow[1]/FoBlockBlock[3]/FoBlockLayout[1]/external-graphic[1]

(process:7561): libfo-WARNING **: Unsupported property: (null)

My external-graphic element contains an attribute:

content-type="content-type:image/svg+xml"

and it seems as if xmlroff doesn't understand that. What is
not clear to me is whether it doesn't understand the 'image/svg+xml'
type, or whether it doesn't understand the 'content-type' format at all.


3) When I remove that attribute alltogether xmlroff will
    seemingly run forever (well, at least I had to kill it
    after a long while). I didn't have a close look into
    the call stack to find out what it was doing then, though.

Best regards,
		Stefan