I’m attempting to string match 5-digit coupon codes spread throughout a HTML web page. For example, 53232, 21032, 40021 etc… I can handle the simpler case of any string of 5 digits with [0-9]{5}, though this also matches 6, 7, 8… n digit numbers. Can someone please suggest how I would modify this regular expression to match only 5 digit numbers?
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Answer
JavaScript
x
5
1
>>> import re2
>>> s="four digits 1234 five digits 56789 six digits 012345"3
>>> re.findall(r"D(d{5})D", s)4
['56789']5
if they can occur at the very beginning or the very end, it’s easier to pad the string than mess with special cases
JavaScript
1
2
1
>>> re.findall(r"D(d{5})D", " "+s+" ")2