/**
 * The CSS `unicode-range` descriptor: parsing it, and asking what it covers.
 *
 * Google Fonts splits a family into subsets — latin, cyrillic, japanese, symbols
 * — and ships one file per subset, gated by `unicode-range`. Every consumer that
 * reads a css2 stylesheet has to answer the same question from it: which of
 * those files is the one that carries the characters I need? An answer that
 * ignores the ranges picks a file by position, which is how a symbol face
 * resolves to its Latin subset and draws the box it was fetched to avoid.
 */
/** An inclusive `[first, last]` codepoint pair. */
export type UnicodeRange = readonly [number, number];
/**
 * Parse a `unicode-range` value into ranges. Handles `U+XXXX`, `U+XXXX-YYYY`
 * and the `U+XX??` wildcard; unparseable parts are skipped rather than thrown
 * on, because one malformed entry must not lose the rest of the descriptor.
 */
export declare function parseUnicodeRange(rangeStr: string): UnicodeRange[];
/** Is `codePoint` inside any of `ranges`? An EMPTY list covers everything. */
export declare function rangesCover(ranges: ReadonlyArray<UnicodeRange>, codePoint: number): boolean;
/** Does any codepoint in the set fall inside any of the ranges? */
export declare function unicodeRangeIntersects(ranges: ReadonlyArray<UnicodeRange>, codePoints: Iterable<number>): boolean;