On 1/17/14 8:01 AM, Greg Wooledge wrote: > On Thu, Jan 16, 2014 at 03:46:38PM -0800, Eduardo A. Bustamante López wrote: >> [[ $'\a' =~ $'\a' ]] -> 0 >> [[ $'\a' =~ $'\\\a' ]] -> 0 >> [[ $'\a' =~ $'\\[\a]' ]] -> 1 >> --- >> [[ $'\177' =~ $'\177' ]] -> 0 >> [[ $'\177' =~ $'\\\177' ]] -> 1 >> [[ $'\177' =~ $'\\[\177]' ]] -> 1 > >> Notice that only $'\177' seems to fail in the middle case, while the >> others work just fine. > > Maybe I'm missing something, but why do you consider that to be wrong? > I would expect [[ x =~ yx ]] to fail (return 1) every time.
There is a question about the correct behavior when y == '\', since the backslash is special to pattern matching. When matching a pattern or a regexp, do you think x =~ \x should succeed, because the backslash acts as an escape? Chet -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/