This paper describes QL, a language for querying complex, potentially recursive data
structures. QL compiles to Datalog and runs on a standard relational database, yet it …

Module systems enable a divide and conquer strategy to software development. To
implement compile-time variability in software product lines, modules can be composed in …

This paper proposes EventCJ, a context-oriented programming (COP) language that can
modularly control layer activation based on user-defined events. In addition to defining …

Background: Programming language design is not usually informed by empirical studies. In
other fields similar problems have inspired an evidence-based paradigm of practice. Such a …

Pluggable types enable users to enforce multiple type systems in one programming
language. We have developed a suite of tools, called the JavaCOP framework, that allows …

Context-aware applications provide end-users with enhanced experiences by continuously
sensing their environment and adapting their behaviour to match the current context of use …

Array-based programming environments are popular for scientific and technical computing.
These systems consist of built-in function libraries paired with high-level languages for …

As the prevailing programming model of enterprise applications is becoming more
declarative, programmers are spending an increasing amount of their time and efforts writing …

Pattern matching is a well-established concept in the functional programming community. It
provides the means for concisely identifying and destructuring values of interest. This …

As with traditional software, the complexity of a programming language implementation is
faced with modularization which favors the separation of concerns, independent …