# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"(?<!^\h)(?<!^\h\h)(?<!^\h\h\h)(?<!\h\h\h\h)\b(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\b"
test_str = ("\n"
" 1.blah\n"
" 1.1 blah blah\n"
" 1.1.1 blah blah blah my ip address is 192.168.1.1\n"
" 1.1.1.1 blah blah blah blah (DLP thinks this is an IP Address and block the document)\n\n"
"On the 1. January the profit rate was 3.5 %, and by article 3.1.4. in the agreement we sent that information to 127.0.0.1\n\n")
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