version=4
opts=uversionmangle=s/_/./g;s/\.(rc\d*)$/~$1/ \
  https://github.com/uriparser/uriparser/releases \
  .*[^n]/(?:|v|version-|version|release-|r|REL_|rel-|uriparser(?:_|-))(\d[^\s/]*)\.(?:tar\.xz|txz|tar\.bz2|tbz2|tar\.gz|tgz)