* Justin Pryzby <[email protected]>, 2006-03-22, 10:00:
I ran pinfo autoconf, then searched for \` (since searching for `
didn't find what I wanted),
Hmm, if you wanted to find grave accent characters, then ` works for me.
On the other hand, using \` has undefined results according to POSIX[0],
but in the GNU libc implementation \` is similar to perl's \A, i.e. it
matches at beginning of buffer.
And indeed, pinfo indeed falls into an infinite loop when you search for
a regex that matches empty string.
[0] http://pubs.opengroup.org/onlinepubs/007908799/xbd/re.html#tag_007_004
--
Jakub Wilk
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