plasma --- a lightweight interpreted templating language in treetop and ruby

A Ruby-based text parsing and interpretation DSL

A Ruby-based text parsing and interpretation DSL

An ActsAs mixin implementing a set of trees (nested set) for ActiveRecord

This module implements ordered n-ary branching tree structures. It includes support for breadth- and depth- first iteration, and serialization to and from a bracketed tree string.

CommandSet is a user interface framework. Its focus is a DSL for defining commands, much like Rake or RSpec. A default readline based terminal interpreter (complete with context sensitive tab completion, and the amenities of readline: history editing, etc) is included. It could very well be ad...

A screen + vim IDE setup for editing a Rails tree

== FEATURES/PROBLEMS: Chirp is a DSL for manipulating file systems. In the same way that rake is aimed at making system buildig easy, chirp is designed to make doing things to entire file systems easy. Chirp is still very much in development and you should be very careful with it: since chirp ...

A plugin for DataMapper that allows model objects to be a part of a heirarchal tree structure. Based on the acts_as_tree plugin for ActiveRecord.

This is a Ruby library for building trees representing HTML structure.

Rockit is a potent parser generator and gives you AST's (Abstract Syntax Tree's) which you can pattern match and pretty-print. Rockit does not distinghuish between lexing and parsing so the generated parsers are scanner-/lexer-less. The vision is to extend Rockit with more advanced compiler-relat...

Provides a generic tree data structure with ability to store keyed node elements in the tree. The implementation mixes in the Enumerable module.

Using this package, you can do powerful pattern recognition easily from your shell command line using a simple suite of tools. Applications include music cateogrization, text classification, handwritten digit recognition, and evolutionary tree reconstruction. The technique is based on a very ge...

An ActiveRecord plugin for atomic archiving and unarchiving of object trees. Inspired by ActsAsParanoid and PermanentRecord