# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"^([\w.]+\.)\s+.+\sNS\s.+\1"
test_str = ("piggyvoucher.com. 86400 IN SOA ns1.krystal.co.uk. admin.krystal.co.uk. (\n"
" 2014060600 ;Serial Number\n"
" 86400 ;refresh\n"
" 7200 ;retry\n"
" 3600000 ;expire\n"
" 86400 ;minimum\n"
" )\n\n"
"piggyvoucher.com. 86400 IN NS ns1.piggyvoucher.com.\n"
"piggyvoucher.com. 86400 IN NS ns2.krystal.co.uk.\n\n\n"
"piggyvoucher.com. 14400 IN A 77.72.0.110\n\n"
"localhost 14400 IN A 127.0.0.1\n\n\n"
"mail 14400 IN CNAME piggyvoucher.com.\n"
"www 14400 IN CNAME piggyvoucher.com.\n"
"ftp 14400 IN A 77.72.0.110\n"
"cpanel 14400 IN A 77.72.0.110")
matches = re.search(regex, test_str)
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