This book constitutes the refereed proceedings of the 7th International Conference on Software Language Engineering, SLE 2014, held in Västerås, Sweden, in September 2014. The 19 revised full papers presented together with 1 invited paper were carefully reviewed and selected from 61 initial submissions. The papers observe software languages from different and yet complementary perspectives: programming languages, model driven engineering, domain specific languages, semantic web, and from different technological spaces: context-free grammars, object-oriented modeling frameworks, rich data, structured data, object-oriented programming, functional programming, logic programming, term-rewriting, attribute grammars, algebraic specification, etc.

This book constitutes the thoroughly refereed post-conference proceedings of the 12th International Symposium on Trends in Functional Programming, TFP 2011, held in Madrid, Spain, in May 2011. The 12 papers presented were carefully reviewed and selected from 21 submissions. They deal with all aspects of functional programming, taking a broad view of current and future trends in this area. The topical sections the papers are organized in are named as follows: types, compiling, paralelelism and distribution, data structures, and miscellaneous.