GQ requires XML::Parser

[Dave Horsfall]

Sierra 10.12.6.

Trying to install the GQ LDAP browser I traced the failure to the Perl 
module "XML::Parser" being required.  Trying the obvious "port install 
XML::Parser" resulted in:

    Can't map the URL 'XML::Parser' to a port description file ("Can't parse url 
XML::Parser").
    Please verify that the directory and portfile syntax are correct.
    Error: Can't open URL 'XML::Parser' as a port
    Error: Improper expression syntax while processing parameters

Can someone please remind me how to install this from ports (I assume)?

Or is it pure Perl?  If the latter I'll then have to remember how to 
install a Perl module...

Thanks.

-- Dave