-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jim Fulton wrote: > I'll note, mostly in passing (drive by :) that overriding utilities, > adapters, security setting and many other things, works pretty well > and has for a long time. What doesn't work well is disabling things > or dealing with things, like subscribers that can't be overridden, > because they never conflict. In practice, this usually doesn't matter > because, elegance aside, there usually is no harm in having extra > configuration. Of course, there are times when it does matter, and I > think we need something to help in those cases. > > I do think that Leonardo makes a valid point that factoring > configurations might work just as well. If we had a way to disable > configuration, say with a tagging system, then people would have to > anticipate selective reuse by providing appropriate tags. At this > point, you might as well just factor the files. Some of the > proposals for configuration disabling didn't require explicit tagging > but could use existing properties of configuration.
One example of such an implementation would be an optional, lxml-based directive which uses the native structure of the ZCML file and XPath. E.g. to include only adapters from a package :: <select package="my.package" file="configure.zcml"> <path>//adapter//path> </select> The XPath processor would need to be passed the current namespace mapping here, if we want to select items from the non-default namespace. Otherwise, this would function pretty much like the 'include' directive (it might even use that diretive's handler under the hood). With an egg-based story, we can more easily use stuff which depends on a third-party library like lxml; folks who can't install lxml just lose this feature. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 [EMAIL PROTECTED] Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGMfRd+gerLs4ltQ4RAt0oAJ9P7uzGpg+9aUxojOncmwNqap57ewCdHxmw 8c8sBw06QuruSXLdAjbXBBg= =4/9I -----END PGP SIGNATURE----- _______________________________________________ Zope3-dev mailing list Zope3-dev@zope.org Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com