On Wed, 5 Jun 2019, ND via Pcre-dev wrote: > PCRE2 version 10.33 2019-04-16 > /(?=abc)/I > Capture group count = 0 > May match empty string > First code unit = 'a' > Last code unit = 'c' > Subject length lower bound = 0 > > > Why Subject length lower bound = 0, not 3?
Because PCRE2 isn't clever enough to deal with lookarounds when computing the minimum length. Philip -- Philip Hazel -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
