Re: grep and Regular expression correctness

2010-08-23 Thread chrisk-freebsd
On 23/08/2010 13:45, Bob Bishop wrote: > On 23 Aug 2010, at 12:51, chrisk-free...@list.mightyreason.com wrote: >> [...]The hardest part of POSIX regular expressions is in picking out the >> correct captured subexpressions. This makes programs like "sed" >> vulnerable to the bad regex.h engine tha

Re: grep and Regular expression correctness

2010-08-23 Thread Bob Bishop
Hi, On 23 Aug 2010, at 12:51, chrisk-free...@list.mightyreason.com wrote: > [...]The hardest part of POSIX regular expressions is in picking out the > correct captured subexpressions. This makes programs like "sed" > vulnerable to the bad regex.h engine that comes with the operating system. > >