The construction of natural-language interfaces to computers continues to be a major challenge. The need for such interfaces is growing now that speech-recognition technology is becoming morereadily available, and people cannot speak those computer-oriented formal languages that are frequently used to interact with computer applications. Much of the research related to the design and implementation of natural-language interfaces has involved the use of high-level declarative programming languages. This is to be expected as the task is extremely difficult, involving syntactic and semantic analysis of potentially-ambiguous input. The use of LISP and Prolog in this area is well documented. However, research involving the relatively-new lazy functional-programming paradigm is less well known. This paper provides a comprehensive survey of that research.