Regular expression to get the value after the comma

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#1 by (7 votes)
#2 by (3 votes)
#3 by (-2 votes)

5

With the following expression (,) ([0-9] *) can get 25, but I would like to get only 25.

decimal (10.25)

In this case how do I disregard ,

regex

asked by anonymous 12.07.2014 / 16:17

3 answers

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score 7 · Answer 1

If you just want to leave the number in a capture group, just take the comma from the parentheses:

,([0-9]*)

To ensure that you have some number you can use + instead of * (you can use \d instead of [0-9] if you want):

,(\d+)

score 3 · Answer 2

Use the following regular expression that will work:

(?<=,)([0-9]+)

This regular expression uses lookbehind that nothing else is to find the values of the set group ([0-9]+) if before it find the comma (?<=,) .

A full explanation of lookahead and lookbehind can be found on this site .

Here is a code example with Python:

import re
m = re.search('(?<=,)([0-9]+)', '(0,25)')
print m.group(0) #25

score -2 · Answer 3

-2

Just use (,25) , get all occurrences of, 25.

\w,(25*) for the whole number.

Test at Regexr

12.07.2014 / 16:42