Install twig - presemt-ntnu/transglobal GitHub Wiki

The NIST evaluation script for calculating BLEU/NIST scores requires Perl with the XML::Twig module.

Mac OS X

The version of Perl shipped with OS X lacks the XML::Twig module. Install Perl and Twig through MacPorts with

$ sudo port install perl5

followed by

$ sudo port install p5-xml-twig

Linux

On Debian/Ubuntu, install XML::Twig with

sudo apt-get install libxml-twig-perl