tagging with namespace and tree.

Represent trees as strings

Summarises a time file

Rails config store gem used for project has complex config structure

Non intrusive simple node implementation

Uninformed search trees!

Implementation of VP-tree https://en.wikipedia.org/wiki/Vantage-point_tree

WZ2008 industrial classification codes as ActiveRecord tree

Create object trees out of XML documents

Xmas tree

Maintain an in-memory text index of files in current directory tree, allow querying via unix socket in current directory

Generates a complete dependency tree from disparate dependencies to an SVG document.

Golden Menu creates menus by building a hierarchiacal tree first and linking related resources later

Provides a tag that can be used in gollum to output descedants of the current page

XML utilities, includes a fast XML streaming producer and an extensible XML tree representation in Java.

Scans a directory recursively, computes file/directory sizes, and generates an HTML report rendered with React.

* A regex based parser that processes the ITunes Music Library.xml file and generates a sqlite3 database for additional data mining. Also generates treemaps from data parsed.

A gem that helps with ordering of columns and more.

Ruby Tree based hierarchical menus with HTML output and JavaScript show/hide

SQL to HBase parser using Treetop (output based on Thrift). Doing all this before it was cool.