also modified check_all function to suppress all warnings since they aren't
relevant to what this test is doing (allows quiet checking of regsub, for
instance)

    (pointed out by /F)

comments, docstrings or error messages. I fixed two minor things in
test_winreg.py ("didn't" -> "Didn't" and "Didnt" -> "Didn't").

There is a minor style issue involved: Guido seems to have preferred English
grammar (behaviour, honour) in a couple places. This patch changes that to
American, which is the more prominent style in the source. I prefer English
myself, so if English is preferred, I'd be happy to supply a patch myself ;)

is actually by Fredrik Lundh).  This will break the re tests --
Fredrik will fix this before the final release.

The text is condensed from the library manual.

	method, so .groups() didn't work inside the replacement function
	called by re.sub.  One-line fix: set self._num_regs inside subn().

not calling self.search(); instead, call self.code.match() directly
and interpret the list of registers it returns directly.  This saves
the overhead of instantiating a MatchObject for each hit, basically
inlining search() as well as group().  When a MatchObject is still
needed, one is allocated and reused for the duration of the scan.

string.  Added groupdict() to MatchObject -- return the named groups
as a dict.  Added default argument to groups() to specify what to
return for unmatching groups; groupdict() also has this.

characters \, 0, 0, 0.

(1) maxsplit was ignored in split().

(2) groups() would return a string instead of a singleton tuple when
there was only one group.

The new re module was written by Andrew Kuchling and uses the pcre
code in ../Modules/.  The old re module has been renamed to re1,
just in case you need it for comparison.

bugginess has been fixed.

removed some of his own cruft.  Added \g<...> references in replacement text.

the cache code.