# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"""
(['"`]) # capture this quote character
(?:\\.|(?!\1).)* # any escaped character, or
# any character that isn't the captured one
\1 # the captured quote again
(*SKIP)(*FAIL) # ignore this
|
\?\?? # one or two question marks
|
::?\w+ # word characters marked with one or two colons
"""
test_str = ("INSERT INTO xyz WHERE \n"
"a=? \n"
"and b=\"what?\"\n"
"and ??=\"cheese\"\n"
"and `col?`='OK'\n"
"and ::col='another'\n"
"and last!=:least\n"
"and b=\"wha\\\"t?\"")
matches = re.finditer(regex, test_str, re.VERBOSE)
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