regex in python
gisleyt
gisleyt at gmail.com
Thu May 25 05:58:17 EDT 2006
I'm trying to compile a perfectly valid regex, but get the error
message:
r =
re.compile(r'([^\d]*)(\d{1,3}\.\d{0,2})?(\d*)(\,\d{1,3}\.\d{0,2})?(\d*)?.*')
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.3/sre.py", line 179, in compile
return _compile(pattern, flags)
File "/usr/lib/python2.3/sre.py", line 230, in _compile
raise error, v # invalid expression
sre_constants.error: nothing to repeat
>>>
What does this mean? I know that the regex
([^\d]*)(\d{1,3}\.\d{0,2})?(\d*)(\,\d{1,3}\.\d{0,2})?(\d*)?.*
is valid because i'm able to use it in Regex Coach. But is Python's
regex syntax different that an ordinary syntax?
By the way, i'm using it to normalise strings like:
London|country/uk/region/europe/geocoord/32.3244,42,1221244
to:
London|country/uk/region/europe/geocoord/32.32,42,12
By using \1\2\4 as replace. I'm open for other suggestions to achieve
this!
-Gisle-
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