On Wed, 10 Jul 2013 21:33:20 +0800, Peter Stockdill wrote: > >I believe that /.^./ or /.$./ both satisfy your requirement.
On Wed, 10 Jul 2013 08:45:17 -0400, John Gilmore wrote: > >and he has the right idea. What is needed is a substantive >contradiction, one, say, of the logical form > >¬(a | ¬a) >a & ¬a > (Redundantly. De Morgan.) >that is not so obvious that simple consistency checks catch it. > I have tried something similar to Peter's suggestion with mixed results on processors which, as you suspect, variously: o Fail the construct as invalid syntax. o Regard "^" occurring other than at the beginning of a pattern or "$" occurring other than at the end of a pattern as unmeta characters. >The merely improbable---Something akin to an SQL query of a personnel >data base that seeks bilingual Icelandic and Urdu speakers---is not >good enough because parochial. Exxon chose its name in part because >the roman-alphabet sequence 'xx' is very rare in most natural >languages and transliterations, but it turned out to be common in >Maltese. > And in latter days, some firewalls block anything containing "xx" (or "specialist"). For myopia in the other direction, try a DB search for "C". I was taught in grammar school that "q" occurs only followed by "u". Before the ascendancy of Middle Eastern politics. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
