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/** Lowercase and strip diacritics so "etirements" matches "Étirements". */
function fold(value: string): string {
return value.normalize('NFD').replace(/\p{M}/gu, '').toLowerCase();
}
/** Filter `items` to those whose `name` contains `query` as a literal
* substring, case- and accent-insensitive. Order is preserved and no result
* cap applies. Empty/whitespace query returns everything. */
export function filterByName<T extends { name: string }>(
items: T[],
query: string,
): T[] {
const q = fold(query.trim());
if (q === '') return items;
return items.filter((item) => fold(item.name).includes(q));
}
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