Version 1.2.0 of package Treeview has just been released in NonGNU ELPA. You can now find it in M-x list-packages RET.
Treeview describes itself as: ================================= A generic tree navigation library ================================= More at https://elpa.nongnu.org/nongnu/treeview.html ## Summary: emacs-treeview ============== Abstract Emacs Lisp framework for tree navigation. Based on this framework, specific libraries for particular hierarchical data can be implemented, for example, file systems. This document describes v1.1.1 of emacs-treeview. Consider [this notes](#updating-from-v100) for upgrading from v1.0.0. A typical tree could look like the following: <pre> [+] Node 1 [-] Node 2 | [+] Node 21 | [+] Node 22 | [-] Node 23 | | [+] Node 231 | | Leaf 231 | | Leaf 232 | | Leaf 233 | [+] Node 24 [+] Node 3 [+] Node 4 </pre> ## Recent NEWS: [Not available 🙁]