Make the regex python 3.11 compatible

Author: santhoshtr

wikiextractor/extract.py

@@ -380,11 +380,11 @@ def dropSpans(spans, text):
 # as well as U+3000 is IDEOGRAPHIC SPACE for bug 19052
 EXT_LINK_URL_CLASS = r'[^][<>"\x00-\x20\x7F\s]'
 ExtLinkBracketedRegex = re.compile(
-    '\[(((?i)' + '|'.join(wgUrlProtocols) + ')' + EXT_LINK_URL_CLASS + r'+)\s*([^\]\x00-\x08\x0a-\x1F]*?)\]',
+    '(?i)\[((' + '|'.join(wgUrlProtocols) + ')' + EXT_LINK_URL_CLASS + r'+)\s*([^\]\x00-\x08\x0a-\x1F]*?)\]',
     re.S | re.U)
 EXT_IMAGE_REGEX = re.compile(
-    r"""^(http://|https://)([^][<>"\x00-\x20\x7F\s]+)
-    /([A-Za-z0-9_.,~%\-+&;#*?!=()@\x80-\xFF]+)\.((?i)gif|png|jpg|jpeg)$""",
+    r"""(?i)^(http://|https://)([^][<>"\x00-\x20\x7F\s]+)
+    /([A-Za-z0-9_.,~%\-+&;#*?!=()@\x80-\xFF]+)\.(gif|png|jpg|jpeg)$""",
     re.X | re.S | re.U)