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Replace occurrences of '\d' with '[0-9]' in Decimal regex, to make sure

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that the behaviour of Decimal doesn't change if/when re.UNICODE becomes
assumed in Python 3.0.

Also add a check that alternative Unicode digits (e.g. u'\N{FULLWIDTH
DIGIT ONE}') are *not* accepted in a numeric string.
This commit is contained in:
Mark Dickinson 2008-07-02 09:37:01 +00:00
parent 8bb8fa5dd6
commit 70c3289085
2 changed files with 13 additions and 10 deletions
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20
Lib/decimal.py
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@ -5337,20 +5337,20 @@ ExtendedContext = Context(
# other meaning for \d than the numbers [0-9].
import re
_parser = re.compile(r""" # A numeric string consists of:
_parser = re.compile(r""" # A numeric string consists of:
# \s*
(?P<sign>[-+])? # an optional sign, followed by either...
(?P<sign>[-+])? # an optional sign, followed by either...
(
(?=\d|\.\d) # ...a number (with at least one digit)
(?P<int>\d*) # consisting of a (possibly empty) integer part
(\.(?P<frac>\d*))? # followed by an optional fractional part
(E(?P<exp>[-+]?\d+))? # followed by an optional exponent, or...
(?=[0-9]|\.[0-9]) # ...a number (with at least one digit)
(?P<int>[0-9]*) # having a (possibly empty) integer part
(\.(?P<frac>[0-9]*))? # followed by an optional fractional part
(E(?P<exp>[-+]?[0-9]+))? # followed by an optional exponent, or...
|
Inf(inity)? # ...an infinity, or...
Inf(inity)? # ...an infinity, or...
|
(?P<signal>s)? # ...an (optionally signaling)
NaN # NaN
(?P<diag>\d*) # with (possibly empty) diagnostic information.
(?P<signal>s)? # ...an (optionally signaling)
NaN # NaN
(?P<diag>[0-9]*) # with (possibly empty) diagnostic info.
)
# \s*
\Z