Ho to use a regular expression group reference as hash key

[Fredrik Lundh]

Jason Orendorff wrote:

> > >>> re.sub( r'b\w+\b', lambda word: person.get(word,word), target )
> > 'A sample sentence with entry1 and entry2'
>
> The fourth line isn't exactly right.  Should be:
>
> >>> re.sub(r'\b\w+\b', lambda word: person.get(word, word.group(0)), target)
> 'A sample sentence with entry1 and entry2'

or perhaps even:

> >>> re.sub(r'\b\w+\b', lambda m: person.get(m.group(0), m.group(0)), target)
> 'A sample sentence with value1 and value2'

('m' is a match object)

but at this point, it's probably better to replace that
lambda with a named function.

</F>