Implemention of streams in the classic sense where a stream is a head and a promise to compute the tail. Utilities to use streams from enumerables

Before, After and Around methods, either with blox or methods, à la ActiveSupport

Constraints like :positive_int, :non_empty_string, ...

Define configuration values with defaults and lazy evaluation on a per class or per instance level

short forms of common idioms, extensions to remove most blocks, commonly used helpers

A map impelementation with context, access goodies and representation format enhancements (json, yaml, xml,...)

Functional Access to Methods - Memoization - Extending Array, Hash, File, Enumerable with convenience methods, conceptual changes have been moved into lab42_more

Curry functions and methods at will, reorder, define placeholders anywhere, positional and named args

partials, chainable, composable functions; all isolated into Lab42::Function; unintrusive; depedence free; pure Ruby

A Hash with Business Logic (call it intelligent).

Kakoune scripting is very flexible but needs to be triggered by the shell, quite interesting how that goes...

Spec behavior in any file load it with doctest from an RSpec example group

Match and then change groups, prefix, postfix or even the text between the groups

A Nested Hash with dotted access à la I18n in Rails

OpenMap = OpenStruct with a rich API, e.g. #merge, #slice, #without,...

Specify command line arguments with Ruby Syntax

Result instances are immutable objects representing an error with a message or an absence of error with a value

Extract RSpecs from Markdown

Define triggers and transitios, what else? Well... Filter

Boxes, Translations,...