two of the free music typesetting applications most popular among church musicians are LilyPond and Gregorio. lygre gem currently provides tool *grely* converting Gregorio's input format (gabc) to simple LilyPond input. In future another tool for the other direction of conversion may be added.

Pre processors that allows the inclusion of external files and post processors for csn and json data.

A simple DSL for expressing and evaluating basic Matrix transformations and arithmetic operations

MenuMarkup is a super simple markup to specify menu data in plain text. When the MenuMarkup is parsed it creates a Menu. A Menu consists of two types: Items and Sections. Items have multiple Prices.

Localization (L10n) and Internationalization (i18n) support for the Merb MVC Framework

Rena is a Ruby library for manipulating RDF files.

Simple arithmetic implemented by Treetop.

minilang is used in a couple of my projects and I can't recommend anyone to use it as of now

supports: nil, string, integer, array, hash the syntax is similar to to ruby

Extension for mongoid to parse oslc.where

Mongo-query compiles SQL-like where clauses into Mongo query 'documents'

(SWIFT)MT940 file parser

Host your bookmarks or maintain a link blog

The library is based around an abstract representation for music notation, including pitch, note, dynamic, score, etc. A Ruby-based DSL is provided to aid in composition. Scores can be converted to common formats, like MIDI and LilyPond. Scores can also be rendered as audio via SuperCollider.

The goal of music-transcription is the abstract representation of standard musical features such as pitch, note, loudness, tempo, etc. Establishing a common representation enables composition and performance.

A calculator supporting mathematical expressions, variables, functions and rudimentary plotting

Scripts and models for building and maintaining the MDES-based reporting warehouse for NCS Navigator.

Fork of Michael van Rooijen's backup gem (https://github.com/meskyanichi/backup). You probably don't want this version.

Executable Feature scenarios

Natural Query Language built on top of ActiveRecord and Ransack