Install libgtk2-sourceview2-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libgtk2-sourceview2-perl
Description:
enhanced source code editor widget
Gtk2::SourceView2 is the Perl binding for the C library gtksourceview-2.0. This is the same widget that's used by gedit, MonoDevelop, Anjuta and several other projects. . This widget extends the standard GTK+ framework for multiline text editing with support for configurable syntax highlighting, unlimited undo/redo, UTF-8 compliant caseless searching, printing and other features typical of a source code editor. . For more information about gtksourceview-2.0 see: http://projects.gnome.org/gtksourceview/.
Homepage: https://metacpan.org/release/Gtk2-SourceView2
Version: 0.10-2build4
Section: universe/perl