CODEWITHSUNDEEP
pythonregexperl
lmouhib
lmouhib

Reputation: 47

Equivalent perl Regex in python

Perl uses $` to return everything before the matched string and $' to return everything after the matched string. I was wondering if there is something similar in python or any work around to get it. Thanks

Upvotes: 0

Views: 315

Answers (2)

Borodin
Borodin

Reputation: 126722

If you collect a MatchObject from the result of a search operation, you can use its contents to build the equivalent substrings to Perl's $` and $'

Like this

import re

ss = '123/abc'

match = re.search('/', ss)

print ss[:match.start()]
print match.group()
print ss[match.end():]

output

123
/
abc

Upvotes: 1

Avinash Raj
Avinash Raj

Reputation: 174706

Just use re.split command to split the input according to a particular regex and then get the string before the match from index 0 of returned list and the string after the match from index 1.

>>> word = 'foo'
>>> re.split(re.escape(word), 'barfoobuz', maxsplit=1)
['bar', 'buz']

By adding maxsplit=1 parameter, the above re.split function will do splitting only one time according to the characters which matches the given pattern.

Upvotes: 1

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