How to write regex for string like:
'$12.78..'
I googled and found "re" is the Python module to do it using import re.
But I couldn't figured out the exact way to do it.
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The exact language of regex's you are trying to parse is also unclear.amit kumar– amit kumar2011-09-10 09:11:51 +00:00Commented Sep 10, 2011 at 9:11
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import re re.match(^$.)dead_hour– dead_hour2011-09-10 09:15:55 +00:00Commented Sep 10, 2011 at 9:15
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1do not forget to escape the dollar sign, as it matches the end of line.rocksportrocker– rocksportrocker2011-09-10 09:22:43 +00:00Commented Sep 10, 2011 at 9:22
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naming a variable "tuple" is not a good idea as it is a Python type. And re.match returns None or a match object not a tuple, so the variable name is misleading.rocksportrocker– rocksportrocker2011-09-10 09:25:01 +00:00Commented Sep 10, 2011 at 9:25
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s = '$12.78..' re.match('\$(\d*)\.(\d*)',s)Stals– Stals2011-09-10 09:25:15 +00:00Commented Sep 10, 2011 at 9:25
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1 Answer
As a starter:
import re
print re.match("\$\d\d\.\d+", "$12.1")
print re.match("\$\d\d\.\d+", "12.1")
print re.match("\$\d\d\.\d+", "$123.1")
print re.match("\$\d\d\.\d+", "$12.")
If you want to learn more about regular expressions in Python I recommend:
2 Comments
Stals
also a google class video about regular expressions: youtube.com/watch?v=kWyoYtvJpe4
rocksportrocker
@Stals: thanks for the hint, did not know that. For other readers: youtube.com/watch?v=kWyoYtvJpe4