import re
 
p = re.compile(r'(?P<prefix>(?:\bu8|\b[LuU])?)(?:"(?P<dbl>[^"\\]*(?:\\.[^"\\]*)*)"|\'(?P<sngl>[^\'\\]*(?:\\.[^\'\\]*)*)\')|R"([^"(]*)\((?P<raw>.*?)\)\4"')
s = "\"text'\\\"here\"\nL'text\\'\"here'\nu8\"text'\\\"here\"\nu'text\\'\"here'\nU\"text'\\\"here\"\nR\"delimiter(text\"'\"here)delimiter\""
print(s)
print('--------- Regex works below ---------')
for x in p.finditer(s):
	if x.group("dbl"):
		print(x.group("dbl"))
	elif x.group("sngl"):
		print(x.group("sngl"))
	else:
		print(x.group("raw"))

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