Lines Matching full:lookahead
3039 matching possibilities goes ahead, just as if a lookahead assertion had
3081 2. PCRE does not allow repeat quantifiers on lookahead assertions. Perl
3086 3. Capturing subpatterns that occur inside negative lookahead asser-
3090 ing), but only if the negative lookahead assertion contains just one
4818 Lookahead assertions
4820 Lookahead assertions start with (?= for positive assertions and (?! for
5085 assertion. This may be a positive or negative lookahead or lookbehind
5092 The condition is a positive lookahead assertion that matches an
5946 LOOKAHEAD AND LOOKBEHIND ASSERTIONS
