sentence: he is known for designing and implementing the rexx programming language ( published in ibm systems journal in 1984 ) and the netrexx programming language ( 1996 -- 1997 ) , his work on color perception and image processing ( 1982 -- 1985 ) , the stet folding editor ( 1977 ) , the lexx live parsing editor ( 1985 , possibly the first editor with color highlighting ) for the oxford english dictionary , electronic publishing , sgml applications , , the ibm jargon file ( ) through 1990 , java - related languages , the acorn system 1 , , and decimal arithmetic .