modifying package.xml at install time

Hi there, I'm working on the FreeBSD ports of PEAR packages, and one thing I'm struggling with while trying to create a makeport pear(1) subcommand is lack of consistency in paths (I've already tackled this topic here). Some packages have documentation in doc/, others in docs/, yet other packages have example files in the docs? directory. Besides, FreeBSD ports put documentation in D/share/doc/P, and examples in D/share/examples/P, etc. (D is typically /usr/local, P is the port name, or, in case of pear ports, pear/<pkgname>.) Basically, I need to examine the package.xml file, and add install-as attributes to some file elements. But looking at the PEAR_Installer code, I don't see an obvious way to hook this in. Is there any? -- If you cc me or remove the list(s) completely I'll most likely ignore your message. see http://www.eyrie.org./~eagle/faqs/questions.html