/**
 * Inline character-set parser for `<gen type="symbol" value="…">`.
 *
 * Lets a user spell a set of characters directly, without reaching for
 * regular expressions — the friendly path for "pick one symbol from this
 * bunch". Any Unicode works.
 *
 * Grammar (documented in docs/user/ru/gen.md):
 *   - `[X-Y]` inside brackets = inclusive code-point range (`[a-z]`,
 *     `[0-9]`, or a Unicode range such as Cyrillic or Devanagari).
 *     Multiple ranges/literals may share one
 *     group: `[a-z0-9_]`. A `-` at the start or end of a group is a
 *     literal hyphen.
 *   - Every other character is a literal member.
 *   - Outside brackets, commas and ASCII whitespace are ignored (they are
 *     formatting separators, so `"[a-b], [0-5]"` reads nicely). To include
 *     a literal comma, space, or bracket, put it inside a group: `[,]`,
 *     `[ ]`.
 *
 * The result preserves first-seen order and removes duplicates, so it is
 * deterministic and portable (a future Python/Java port reproduces the
 * same ordered set).
 */
export declare class CharSetError extends Error {
    readonly name = "CharSetError";
}
/** Parse an inline character-set spec into an ordered, de-duplicated list. */
export declare function parseCharSet(spec: string): string[];
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