Punctuation allows contraction. The others do not. Whole words that are adjacent to math or sign opcodes are not contrracted, but parts of them which are not adjacent may be. John On Sat, Jan 26, 2013 at 10:13:33PM +0100, Bue Vester-Andersen wrote: > Hi, > > I know what the three upcodes are used for, but do they produce different > results? If so, what effect do each of them have on the contraction process? > > Best regards > Bue > > > For a description of the software, to download it and links to > project pages go to http://www.abilitiessoft.com -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities For a description of the software, to download it and links to project pages go to http://www.abilitiessoft.com