guard

guard-compat

Helps creating valid Guard plugins and testing them

psych

Psych is a YAML parser and emitter. Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML] for its YAML parsing and emitting capabilities. In addition to wrapping libyaml, Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.

racc

Racc is a LALR(1) parser generator. It is written in Ruby itself, and generates Ruby program. NOTE: Ruby 1.8.x comes with Racc runtime module. You can run your parsers generated by racc 1.4.x out of the box.

rake

Rake is a Make-like program implemented in Ruby. Tasks and dependencies are specified in standard Ruby syntax. Rake has the following features: * Rakefiles (rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?) * Users can specify tasks with prerequisites. * Rake supports rule patterns to synthesize implicit tasks. * Flexible FileLists that act like arrays but know about manipulating file names and paths. * Supports parallel execution of tasks.

rubysl

Ruby 2.0+ standard library meta-spec. Install this spec to install the Ruby standard library on compliant Ruby implementations that provide Ruby 2.0+ compatibility.

test-unit

test-unit (Test::Unit) is unit testing framework for Ruby, based on xUnit principles. These were originally designed by Kent Beck, creator of extreme programming software development methodology, for Smalltalk's SUnit. It allows writing tests, checking results and automated testing in Ruby.