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2.06
A Parsing Expression Grammar (PEG) Parser generator DSL for Ruby
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1.13
Hirb provides a mini view framework for console applications and uses it to improve ripl(irb)'s default inspect output. Given an object or array of objects, hirb renders a view based on the object's class and/or ancestry. Hirb offers reusable views in the form of helper classes. The two main helpers, Hirb::Helpers::Table and Hirb::Helpers::Tree, provide several options for generating ascii tables and trees. Using Hirb::Helpers::AutoTable, hirb has useful default views for at least ten popular database gems i.e. Rails' ActiveRecord::Base. Other than views, hirb offers a smart pager and a console menu. The smart pager only pages when the output exceeds the current screen size. The menu is used in conjunction with tables to offer two dimensional menus.
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Routing tree web toolkit
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Ancestry allows the records of a ActiveRecord model to be organized in a tree
structure, using the materialized path pattern. It exposes the standard
relations (ancestors, parent, root, children, siblings, descendants)
and allows them to be fetched in a single query. Additional features include
named scopes, integrity checking, integrity restoration, arrangement
of (sub)tree into hashes and different strategies for dealing with orphaned
records.
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0.04
ParseTree is a C extension (using RubyInline) that extracts the parse
tree for an entire class or a specific method and returns it as a
s-expression (aka sexp) using ruby's arrays, strings, symbols, and
integers.
As an example:
def conditional1(arg1)
if arg1 == 0 then
return 1
end
return 0
end
becomes:
[:defn,
:conditional1,
[:scope,
[:block,
[:args, :arg1],
[:if,
[:call, [:lvar, :arg1], :==, [:array, [:lit, 0]]],
[:return, [:lit, 1]],
nil],
[:return, [:lit, 0]]]]]
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RubyTree is a Ruby implementation of the generic tree data structure. It
provides simple APIs to store named nodes, and to access, modify, and
traverse the tree.
The data model is node-centric, where nodes in the tree are the primary
structural elements. It supports all common tree-traversal methods (pre-order,
post-order, and breadth first).
RubyTree mixes in the Enumerable and Comparable modules and behaves like a
standard Ruby collection (iteration, comparison, etc.).
RubyTree also includes a binary tree implementation, which provides in-order
node traversal besides the other methods.
RubyTree can import from and export to JSON, and supports Ruby’s object
marshaling.
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0.45
A parser based on ripper
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0.08
Print directory or structured data in a tree like format.
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1.32
Heap, Priority Queue, Deque, Stack, Queue, Red-Black Trees, Splay Trees, sorting algorithms, and more
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0.07
Guard::CtagsBundler uses ctags utility and generates 2 files: tags -- with tags generated from project's source tree and gems.tags -- with tags generated from rubygems from project's bundle.
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A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.
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10.29
A library for working with Abstract Syntax Trees.
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0.22
A tree structure for Mongoid documents using the materialized path pattern
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0.79
A stackable dynamic tree based Rack router.
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0.18
A Ruby Gem implementation of Bitcoin HD Wallets
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1.93
A RBTree is a sorted associative collection that is implemented with a
Red-Black Tree. It maps keys to values like a Hash, but maintains its
elements in ascending key order. The interface is the almost identical
to that of Hash.
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0.19
The Ruby Language Toolkit provides classes for creating context-free grammars, lexers, parsers, and abstract syntax trees.
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0.01
Line-tree parses indented lines of text and returns an array representing a tree structure.
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0.03
A modular scale is a list of values that share the same relationship. These
values are often used to size type and create a sense of harmony in a design. Proportions within
modular scales are all around us from the spacing of the joints on our fingers to branches on
trees. These natural proportions have been used since the time of the ancient Greeks in
architecture and design and can be a tremendously helpful tool to leverage for web designers.
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5.4
Supervisors, Supervision Groups, and Supervision Trees for Celluloid.
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