convert to extension classes to make permission machinery
work properly.  This needs some more thought.

convert to extension classes to make permission machinery
work properly.  This needs some more thought.

Moved a bunch of logic up from Folder.

Moved many facilities up to ObjectManager.

Note that the previous check in also included a rename of
PrincipiaFnd to ZopeFind (with PrincipiaFind retained as an alias).

convert to extension classes to make permission machinery
work properly.  This needs some more thought.

(effectively) inheriting permissions settings.
That is, a class' permission settings are the union of whatever
settings it has with settings in all base classes.

raised.  fixed to return null

regression.

named link...

and __call__ method (as alias to index_html) for DTML
scripting.

as:

  "whatever", :file_in_same_dir

or

  "whatever"::file_in_same_dir

.__init__(): relax the second gsub, using a '*' instead of a '+', so
the stuff before the ':' can be missing, and also do postprocessing so
any resulting '<a href=":file_in_same_dir">'s have the superfluous ':'
removed.  *Seems* good!

- *.stx are (mostly arbitrary) reference structured text files, and

- *.ref are previously processed output from the corresponding *.stx files.

Here's the in-depth explanation:

The directory has a bunch of .stx files (ones found on the zope.org
site, plus an 'examples.stx' file, for accumulating a body of
examples) plus corresponding .ref files, previously produced by a
prior, established StructuredText version.  The script 'regress'
applies the new ../StructuredText.py version to produce .new files,
and then compares the .ref files and the .new files, complaining if
any differences are found.

The intended procedure is to make your changes in ../StructuredText.py,
iron them out as best you can, and then try the regress script to
identify any unexpected functionality changes/backwards-compatability
losses.  (We also need to develop the body of reference text and examples.)