Method class_hit

std/re/src/main/matcher.rs:224–232

Class membership, widening by case when ignorecase is set. */

(&self, items: &[ClassItem], c: char)

    /* Class membership, widening by case when ignorecase is set. */
    fn class_hit(&self, items: &[ClassItem], c: char) -> bool {
        if class_contains(items, c) { return true; }
        if self.flags.ignorecase {
            for alt in fold_variants(c) {
                if alt != c && class_contains(items, alt) { return true; }
            }
        }
        false
    }

    fn ci_eq(&self, a: char, b: char) -> bool {
        if a == b { return true; }