earleh@eleazar.dartmouth.edu (Earle R. Horton) (05/27/88)
I have found a bug in the program flex where the author used the high bits of characters for an internal flag. This made the program unusable for scanning valid characters in two systems I can think of, to wit the Macintosh and DEC multi- nationals, and cost me three days of head-scratching. Please do not use this bit for a flag, or negate characters to flag them. Doing so seriously reduces portability of your code. If you must negate or flag characters, please convert them to type short first, and then back when you are done. Diffs for flex posted to comp.sources.unix. Tested on Macintosh and 4.3 BSD VAX. ********************************************************************* *Earle R. Horton, H.B. 8000, Dartmouth College, Hanover, NH 03755 * *********************************************************************