# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"""
#begin regex
(?:
#artist
(?:
(.*?)
#end artist
)
#feat
(?:
(?:\s?[(]?\s?
(?:(?:featuring|feat|ft)(?:\.?\/?)(?:\s?)
(?:(.*?)
(?:\s?[)]?\s?
#end feat
)))))
#feat closed
#title
(?:
(?:\s?[-)]\s?
(?:(.*?)
#end title
)?)?)
#title closed
#remix
(?:
(?:\s?[(]\s?
(?:(.*?)
(?:\s?[)]\s?
#end remix
))))
#remix closed
#post-feat
(?:
(?:.*?
(?:\s?[(]?\s?
(?:(?:featuring|feat|ft)(?:\.?\/?(.*?))
(?:\s?[)]\s?
#end post-feat
)?)?)?)?)$
#post-feat closed
#end regex
)$
#regex closed
"""
test_str = "Bakermat (feat. Kiesza) - Don't Want You Back (Extended Mix) feat kesha"
matches = re.search(regex, test_str, re.VERBOSE)
if matches:
print ("Match was found at {start}-{end}: {match}".format(start = matches.start(), end = matches.end(), match = matches.group()))
for groupNum in range(0, len(matches.groups())):
groupNum = groupNum + 1
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = matches.start(groupNum), end = matches.end(groupNum), group = matches.group(groupNum)))
# Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html