import type { Aff, Flag, Flags } from "./index.js";
/** Base class for the {@link Prefix}/{@link Suffix} classes. Won't work by itself. */
export declare abstract class Affix {
    /** The {@link Flag} that denotes the "name" for this affix. */
    flag: Flag;
    /**
     * If true, this affix is allowed to have the opposite form of this
     * affix, i.e. if a {@link Suffix} would be allowed to have a
     * {@link Prefix}, and vice versa.
     */
    crossproduct: boolean;
    /**
     * What is "stripped" from the stem when this affix is applied. e.g. this
     * would be `"e"` for the suffix `"or"` (as in `create`, `creator`)
     */
    strip: string;
    /**
     * What to add when this affix is applied. e.g. this would be `"or"` in
     * the transformation needed for `create`, `creator`.
     */
    add: string;
    /** {@link Flags} this affix has been marked with. */
    flags: Flags;
    /**
     * `RegExp` tested against a word to determine if this affix is relevant
     * to said word. This doesn't check if the word *has* this affix, just if
     * it *can* have this affix.
     */
    conditionRegex: RegExp;
    /** `RegExp` tested against a word to determine if said word has this affix. */
    lookupRegex: RegExp;
    /**
     * `RegExp` tested against a word to match the specific section of said
     * word that would need to be stripped to apply this affix.
     */
    replaceRegex: RegExp;
    /**
     * @param flag - {@link Flag} that this affix will be labled with.
     * @param crossproduct - Sets the {@link Affix.crossproduct} state, with
     *   the string "Y" meaning `true` and everything else meaning `false`.
     * @param strip - What this affix should strip from a word to be applied.
     *   If given as the string "0", that means not to strip anything.
     * @param add - What to add to a word when this affix is applied. If
     *   given as the string "0", that means to add nothing.
     * @param aff - The {@link Aff} data to use when parsing flags.
     */
    constructor(flag: Flag, crossproduct: string, strip: string, add: string, aff: Aff);
    /**
     * Determines if a word matches the conditions of this affix.
     *
     * @param word - The word to check against this affix's conditions.
     */
    relevant(word: string): boolean;
    /**
     * Determines if a word already has this affix applied to it.
     *
     * @param word - The word to check for if this affix is already present.
     */
    on(word: string): boolean;
    /**
     * Applies this affix to a word, returning the word as a transformed string.
     *
     * @param word - The word to apply the transformation to.
     */
    apply(word: string): string;
    /**
     * Determines if this affix has the given flag.
     *
     * @param flag - The flag to check for. Can be undefined, which will return false.
     */
    has(flag?: Flag): boolean;
    /**
     * Determines if this affix is compatible with a set of flags, meaning
     * that the affix's flags are present in the flag set given.
     *
     * @param required - The flags this affix must have.
     * @param forbidden - An optional set of flags which has the inverse
     *   effect, meaning that this affix's flags *cannot* be found in this set.
     */
    compatible(required: Flags, forbidden?: Flags): boolean;
}
/** An {@link Affix} that is applied to or found at the beginning of a stem. */
export declare class Prefix extends Affix {
    /**
     * @param flag - {@link Flag} that this affix will be labled with.
     * @param crossproduct - Sets the {@link Affix.crossproduct} state, with
     *   the string "Y" meaning `true` and everything else meaning `false`.
     * @param strip - What this affix should strip from a word to be applied.
     *   If given as the string "0", that means not to strip anything.
     * @param add - What to add to a word when this affix is applied. If
     *   given as the string "0", that means to add nothing.
     * @param condition - A `RegExp` like pattern to check against a word to
     *   see if this affix is relevant.
     * @param aff - The {@link Aff} data to use when parsing flags.
     */
    constructor(flag: string, crossproduct: string, strip: string, add: string, condition: string, aff: Aff);
}
/** An {@link Affix} that is applied to or can be found at the end of a stem. */
export declare class Suffix extends Affix {
    /**
     * @param flag - {@link Flag} that this affix will be labled with.
     * @param crossproduct - Sets the {@link Affix.crossproduct} state, with
     *   the string "Y" meaning `true` and everything else meaning `false`.
     * @param strip - What this affix should strip from a word to be applied.
     *   If given as the string "0", that means not to strip anything.
     * @param add - What to add to a word when this affix is applied. If
     *   given as the string "0", that means to add nothing.
     * @param condition - A `RegExp` like pattern to check against a word to
     *   see if this affix is relevant.
     * @param aff - The {@link Aff} data to use when parsing flags.
     */
    constructor(flag: string, crossproduct: string, strip: string, add: string, condition: string, aff: Aff);
}