Structureswift 6.1.2RegexBuilder

    Lookahead

    A regex component that allows a match to continue only if its contents match at the given location.

    iOS
    16.0+
    macOS
    13.0+
    tvOS
    16.0+
    watchOS
    9.0+
    struct Lookahead<Output>
    Mangled symbol
    s12RegexBuilder9LookaheadV What are these?
    FNV24 hash
    4D5KS

    A lookahead is a zero-length assertion that its included regex matches at a particular position. Lookaheads do not advance the overall matching position in the input string — once a lookahead succeeds, matching continues in the regex from the same position.