$ spack url parse "https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz"
==> Parsing URL: https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz

==> Error: Couldn't detect version in: https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz

$ spack url parse "https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz"
==> Parsing URL: https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz

==> Matched version regex 21: r'[?&](?:filename|f|get)=[a-zA-Z\\d+-]+[_-]v?(\\d[\\da-zA-Z.]*)'
==> Matched  name   regex  6: r'\\?f=([A-Za-z\\d+-]+)$'

==> Detected:
    https://evtgen.hepforge.org/downloads?f=EvtGen-01.07.00.tar.gz
                                            ------ ~~~~~~~~
    name:    EvtGen
    version: 01.07.00

==> Substituting version 9.9.9b:
    https://evtgen.hepforge.org/downloads?f=EvtGen-9.9.9b.tar.gz
                                            ------ ~~~~~~

$ spack url summary
==> Generating a summary of URL parsing in Spack...

    Total URLs found:          3796
    Names correctly parsed:    3437/3796 (90.54%)
    Versions correctly parsed: 3533/3796 (93.07%)