# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"(?:(?:(?:(?:var|let)[ \t]+)?([\w.\-]+)[ \t]*[:=]|[(!])[ \t]*)function(?:[ \t]+([\w.\-]+))?[ \t]*\([^)]*\)"
test_str = ("!function(){}() // test1\n"
"!function test2(){}() // test2\n"
"(function(){})() // test3\n"
"(function test4(){})() // test4\n"
"test5 = function(){} // test5\n"
"test6 = function _test6(){} // test6\n"
"let test7 = function(){} // test7\n"
"let test8 = function _test8(){} // test8\n"
"var test9 = function(){} // test8\n"
"var test10 = function _test10(){} // test10\n"
"myfunc(function(){}) // test11\n"
"myfunc(function test12(){}) // test12\n"
"let myobj = {test13 : function(){}} // test13\n"
"let myobj = {test14 : function _test14(){}} // test14\n"
"var myobj = {test15 : function(){}} // test15\n"
"var myobj = {test16 : function _test16(){}} // test16\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