Brian Duggan

Termie introduces a new concept in terminal automation: an additional layer of interactivity on top of another interactive terminal session. Modern debuggers and interfaces can overwhelm console users and clutter the screen with stack traces, excessive debugging information, database query details, and more. Docker containers can also remove precious command line histories, which makes the console experience more tedious. Termie allows for persistent histories across sessions, and adds a mechanism for clutter-free interaction. It also provides some of the functionality of the venerable "expect", to further improve automation of interactive consoles.

This talk will be about using termie, and about some aspects of its implementation in the Raku programming language.

The Jupyter project provides a language-agnostic client-server protocol for a Read-Eval-Print Loop (REPL) and a serialization format for a REPL session. In this talk, we explore the use and implementation of a Perl 6 server ("kernel") and how it interacts with various clients, such as a web client ("notebook") and a console client. We focus on distinctive aspects of using Rakudo Perl 6 in this environment, such as using the Perl 6 metamodel's introspection capabilities for autocompletion, discovery and entry of unicode operators, and using Perl 6's asynchronous primitives for concurrent operations. We also investigate possibilities for widgets, magics, and interactive data visualization. The talks was reschedules from 13:40 on the same day.

The phrase ""Domain Specific Language"" can be used to describe a set of syntactic constructs which either form an independent language, or are part of a more general language. Informal DSLs arise from particular communities, evolve over time and often lack formal specifications. Examples include: templating languages, micro web frameworks, and various wiki markup languages. Perl 6 provides a number of mechanisms for parsing and interpreting such informal DSLs, including custom operators, grammars, and slangs. In this talk, we examine these mechanisms and demonstrate how they can be applied to specific DSLs.