# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"[^.]*(cervi(c|x)|C[1-7]|T[1-6]).*?\.(?=[^.]*L[1-5][^.]*\.)"
test_str = "There is a finding on T2 of spine. The finding is most likely fracture. Additionally, patient seems tired. In L2, patient has there is a circumferential disc bulge with Central disc herniation. In L5, patient seems to have another fracture. In the cervical spine, patient has any degeneration. Patient is may also have fever. L3, endplate edema is also found. In L5, patient may have bruise."
matches = re.finditer(regex, test_str, re.MULTILINE)
for matchNum, match in enumerate(matches, start=1):
print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group()))
for groupNum in range(0, len(match.groups())):
groupNum = groupNum + 1
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.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