paul prescod spotted this discrepancy:
from the documentation:
start ([group])
end ([group])
Return the indices of the start and end of the
substring matched by group; group defaults to
zero (meaning the whole matched substring). Return
None if group exists but did not contribute to the
match.
however, it turns out that PCRE doesn't do what it's
supposed to:
>>> import pre
>>> m = pre.match("(a)|(b)", "b")
>>> m.start(1)
-1
unlike SRE:
>>> import sre
>>> m = sre.match("(a)|(b)", "b")
>>> m.start(1)
>>> print m.start(1)
None
this difference breaks 1.6's pyclbr (1.5.2's pyclbr works
just fine with SRE, though...)
:::
should I fix SRE and ask Fred to fix the docs, or should
someone fix pyclbr and maybe even PCRE?
</F>
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