[Zope3-dev] would like a "package" for registerTranslations directive

[Steve Alexander]

Hi,

I'm making my own configuration of Zope 3 that uses only selected parts 
of zope.app.

To do this, I have my own site.zcml that does not include the 
zope/app/configure.zcml.

I have a zopeapp.zcml that is included by my site.zcml, which includes 
several of the things from zope/app/configure.zcml.

One of the things I'd like to include is the registerTranslations directive:

     <i18n:registerTranslations directory="translation_files" />

I'd like to be able to change it to read:

     <i18n:registerTranslations
         package="zope.app"
         directory="translation_files"
         />

Right now, the registerTranslations directive does not support a 
'package' attribute.  I could put it in its own zcml file, and set the 
package for that file, but that's inelegant.

I looked at adding a 'package' attribute to the registerTranslations 
directive, but it isn't straightforward.  Specifying a package is easy: 
I can just add a GlobalObject field to the metadirective schema. 
However, I don't know a good way of getting this package taken into 
account when the 'directory' attribute's Path field gets processed.

How would I best go about writing a metadirective that has a 'directory' 
attribute and an optional 'package' attribute, where if a relative path 
is given for the 'directory', it would be considered relative to the 
package?

-- 
Steve Alexander