>>>>> "JWK" == John W Krahn <jwkr...@shaw.ca> writes:
JWK> Rob Dixon wrote: >> On 20/07/2010 16:22, Chandan Kumar wrote: >>> >>> Small confusion about word boundaries. word boundaries matches >>> anything between non-word character and word character ,right. >> >> Not quite. JWK> Quite. >> /\b/ matches any (zero-length) point in a string between a >> word and a non-word character, JWK> Correct. >> or between a word character and the >> beginning or end of the string, JWK> Incorrect. It matches *only* between \w and \W characters. sorry to correct that, but rob is right. i knew \b worked with string ends but i didn't realize it assumed they were non-word (\W) chars. a little test shows this: perl -le 'print "yes" if "a" =~ /^\b/' yes perl -le 'print "yes" if "!" =~ /^\b/' the second has no output. so you can consider the ends of a string to be \W chars for \b. uri -- Uri Guttman ------ u...@stemsystems.com -------- http://www.sysarch.com -- ----- Perl Code Review , Architecture, Development, Training, Support ------ --------- Gourmet Hot Cocoa Mix ---- http://bestfriendscocoa.com --------- -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
