Liberal URL-matching Regex, Take Two

Single-line version of pattern:
(?i)\b((?:http(?:s)?:(?:/{1,3}|[a-z0-9%])|[a-z0-9.\-]+[.][a-z]{2,4})(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\)){0,}(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))

Extended version of same pattern:

(?i)		#Ignore Case
\b
(							# Capture 1: entire matched URL
  (?:
    http(?:s)?:                 # http: and https: only
    (?:
      /{1,3}						# 1-3 slashes
      |								#   or
      [a-z0-9%]						# Single letter or digit or '%'
      								# (Trying not to match e.g. "URI::Escape")
    )
    |							#   or
    [a-z0-9.\-]+[.][a-z]{2,4}	# looks like domain name
  )
  (?:							# Zero or more:
    [^\s()<>]+						# Run of non-space, non-()<>
    |								#   or
    \(([^\s()<>]+|(\([^\s()<>]+\)))*\)	# balanced parens, up to 2 levels
   ){0,}
   (?:							# End with:
    \(([^\s()<>]+|(\([^\s()<>]+\)))*\)	# balanced parens, up to 2 levels
    |									#   or
    [^\s`!()\[\]{};:'".,<>?«»“”‘’]		# not a space or one of these punct char
  )
)