libxml-filter-detectws-perl software package provides Perl module for detecting ignorable whitespace, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libxml-filter-detectws-perl
libxml-filter-detectws-perl is installed in your system.
Make ensure the libxml-filter-detectws-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxml-filter-detectws-perl *
You will get with libxml-filter-detectws-perl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libxml-filter-detectws-perl |
| Version | 0.01-7 |
| Description | Perl module for detecting ignorable whitespace |
| Sub Section | Perl |