import type { Aff } from "../aff/index.js";
import type { Dic } from "../dic/index.js";
/** The resulting data returned from executing a lookup. */
export interface LookupResult {
    /** Indicates if the word was spelled correctly. */
    correct: boolean;
    /**
     * Indicates if the word was marked as forbidden with the spellchecker's
     * dictionary.
     */
    forbidden: boolean;
    /**
     * Indicates if the word was marked as "warn" in the dictionary, which
     * probably means that the word is *technically* valid but is still
     * likely to have been a mistake.
     */
    warn: boolean;
}
/**
 * {@link Lookup} context. Many methods in the {@link Lookup} class share
 * these options.
 */
export interface LKC {
    /** If true, lookups will be case sensitive. */
    caps?: boolean;
    /**
     * If false, words which are in the dictionary, but are flagged with the
     * `NOSUGGEST` flag (if provided), will not be considered correct.
     * Defaults to true.
     */
    allowNoSuggest?: boolean;
    /**
     * Used by {@link Lookup.forms}. If false, {@link AffixForm} instances
     * won't be yielded. Defaults to true.
     */
    affixForms?: boolean;
    /**
     * Used by {@link Lookup.forms}. If false, {@link CompoundForm} instances
     * won't be yielded. Defaults to true.
     */
    compoundForms?: boolean;
    /**
     * Used by {@link Lookup.affixForms}. If true, {@link AffixForm}s that have
     * the `FORBIDDENWORD` flag will still be yielded.
     */
    withForbidden?: boolean;
}
/** Class that facilitaties lookups for a spellchecker. */
export declare class Lookup {
    /** Spellchecker's affix data. */
    aff: Aff;
    /** Spellchecker's dictionary data. */
    dic: Dic;
    /**
     * @param aff - The affix data to use.
     * @param dic - The dictionary data to use.
     */
    constructor(aff: Aff, dic: Dic);
    /**
     * Checks if a word is spelled correctly.
     *
     * @param word - The word to check.
     * @param caps - If true, checking will be case sensitive. Defaults to true.
     * @param allowNoSuggest - If false, words which are in the dictionary,
     *   but are flagged with the `NOSUGGEST` flag (if provided), will not be
     *   considered correct. Defaults to true.
     */
    check(word: string, caps?: boolean, allowNoSuggest?: boolean): LookupResult;
    /**
     * Yields *correct* combinations of stems and affixes for a word,
     * specifically instances of {@link AffixForm} or {@link CompoundForm}. If
     * this function does actually yield a form, that means that it can be
     * considered as spelled correctly.
     *
     * @param word - The word to yield the forms of.
     * @see {@link LKC}
     */
    forms(word: string, { caps, allowNoSuggest, affixForms, compoundForms }?: LKC): Generator<import("./forms.js").AffixForm | import("./compounds.js").CompoundForm, void, unknown>;
    /**
     * Checks if a word is spelled correctly. Performs no processing on the
     * word, such as handling `aff.IGNORE` characters.
     *
     * @param word - The word to check.
     * @see {@link LKC}
     */
    correct(word: string, { caps, allowNoSuggest, affixForms, compoundForms }?: LKC): boolean;
    /**
     * Yields the stems of a word. If no stems are returned, the word was incorrect.
     *
     * @param word - The word to yield the stems of.
     * @see {@link LKC}
     */
    stems(word: string, { caps, allowNoSuggest, affixForms, compoundForms }?: LKC): Generator<string, void, unknown>;
    /**
     * Yields a list of a data maps associated with the homonyms of the given stem.
     *
     * @param stem - The stem to get the data of.
     * @param caps - If true, checking will be case sensitive. Defaults to true.
     */
    data(stem: string, caps?: boolean): Generator<Map<string, Set<string>>, void, unknown>;
    /**
     * Determines if a stem is marked with the `WARN` flag.
     *
     * @param stem - The stem to check.
     */
    isWarn(stem: string): boolean;
    /**
     * Determines if a stem is marked as forbidden, either through the
     * `FORBIDDENWORD` flag *or* the the combination of the stem having the
     * `WARN` flag and the `FORBIDWARN` directive being true.
     *
     * @param stem - The word to check.
     */
    isForbidden(stem: string): boolean;
}