regex_automata/util/unicode_data/mod.rs
// This cfg should match the one in src/util/look.rs that uses perl_word.
#[cfg(all(
// We have to explicitly want to support Unicode word boundaries.
feature = "unicode-word-boundary",
not(all(
// If we don't have regex-syntax at all, then we definitely need to
// bring our own \w data table.
feature = "syntax",
// If unicode-perl is enabled, then regex-syntax/unicode-perl is
// also enabled, which in turn means we can use regex-syntax's
// is_word_character routine (and thus use its data tables). But if
// unicode-perl is not enabled, even if syntax is, then we need to
// bring our own.
feature = "unicode-perl",
)),
))]
pub(crate) mod perl_word;