Yukihiro Matsumoto, the creator of the Ruby programming language, talks with Bill Venners about two kinds of nameless functions in Ruby, blocks and closures. Yukihiro Matsumoto, or "Matz," as he is known online, is the creator of the Ruby programming language. Ruby is an object-oriented language suitable for writing day to day scripts as well as full-scale applications. Matz began work on Ruby bac