import type { Dimension, IndexConfig, IndexGroupBy, ResolvedBodyTextConfig, ResolvedIndexConfig } from '../types.js';
/** Static defaults of the `index` section (#165). Typography inherits the
 *  body text at resolve time; the labels follow the document language. */
export declare const DEFAULT_INDEX_CONFIG: {
    indent: Dimension;
    turnoverIndent: Dimension;
    entrySpacing: Dimension;
    separator: string;
    locatorSeparator: string;
    rangeSeparator: string;
    mergeRanges: boolean;
    rangeFormat: "full";
    main: {
        bold: boolean;
        italic: boolean;
    };
    see: {
        italic: boolean;
        separator: string;
    };
    groupBy: IndexGroupBy;
    groups: {
        enabled: boolean;
        fontWeight: number;
        splitMinEntries: number;
    };
};
/** `documentLocale` is the document language (`resolvedLocale`): with the
 *  index's own `locale`, it decides the defaults of an Arabic index (see
 *  {@link languageDefaults}). */
export declare function resolveIndexConfig(partial: IndexConfig | undefined, bodyText: ResolvedBodyTextConfig, documentLocale?: string): ResolvedIndexConfig;
/** Drop unset fields and the static defaults. Returns `undefined` when
 *  nothing remains. `ignoreArticle` is kept whenever it is set: its default
 *  depends on the language. `documentLocale` is the document language, as
 *  for {@link resolveIndexConfig}: the separators and the italics of the
 *  cross-reference labels are kept where the static default is not the
 *  default of the index's language (`', '` in an Arabic index, `see.italic:
 *  true` in an Arabic or Japanese one, #651; `see.separator: '. '` in a
 *  French one, #836). */
export declare function stripIndexDefaults(index: IndexConfig | undefined, documentLocale?: string): IndexConfig | undefined;
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