Thanks Neil, Sam and Matthias You guys are great. Matthias wrote: > 2. I ran this stupid little program below. The timing for a file of 19990186 > chars over 9896 lines, with 9922 occurrences of "abc" clocks in like this: > > cpu time: 4570 real time: 4629 gc time: 2164 > > How much too slow is this? > It might be fast enough so I'll run a test.. A large e-text is about 50,000 lines of about 100 characters per line.. I'm testing for about 20 different character pairs, and each line would typically contain about 20 or 30 of these character pairs.
Neil wrote: >You could do it by hand, using reading primitives ... Do you mean by creating a new readtable? Is it possible to modify the readtable so that it parses a character pair and outputs a single character. For example is it possible to modify it so that when it reads aa it outputs A etc. Thanks again, Harry Spier ____________________ Racket Users list: http://lists.racket-lang.org/users