This (free PDF) article contains some examples of programming with typed two-dimensional input: M. Klerer and J. May, A user oriented programming language, The

This (free PDF) article contains some examples of programming with typed two-dimensional input: M. Klerer and J. May, A user oriented programming language, The Computer Journal (1965) 8 (2): 103-109. doi:10.1093/comjnl/8.2.103 http://comjnl.oxfordjournals.org/content/8/2/103.abstract http://comjnl.oxfordjournals.org/content/8/2/103.abstract