/** Fold case + diacritics for matching, so search is forgiving: `cafe` matches
 *  `Café`, `dieu` matches `Điều`, `da giac` matches `Đa Giác`. Still
 *  substring-based (predictable — no subsequence/typo noise); the typed value
 *  keeps its original accents.
 *
 *  ONE definition, because every list in the kit that filters must agree on what
 *  a query matches. Two of them is not a style problem: a reader who found a row
 *  by typing unaccented text in one list and finds nothing in the next reads the
 *  second as missing data, and nothing on either screen says the rule differed.
 *  `Đ`/`đ` needs the explicit fold — NFD leaves it a single codepoint with no
 *  combining mark to strip, so it survives the diacritic pass unchanged. */
export declare function normalizeForSearch(s: string): string;
/**
 * A CODE the way a person types it — a plate, a container number, a voucher
 * number. `14B-031.02` is punctuated three different ways across one yard's
 * paperwork and nobody typing fast reproduces any of them, so both sides drop
 * everything that is not a letter or a digit before matching: `14b031` finds
 * it, and so does `031.02`. Still a substring test, never a subsequence one, or
 * `1402` would match half the register.
 */
export declare function codeKey(s: string): string;
/** Does any of these fields answer the query, as a code? An empty query matches everything. */
export declare function codeMatches(query: string, ...fields: string[]): boolean;