/**
 * @returns true if the given character code is a niqqud (vowel diacritic) character.
 */
export declare function char_code_is_niqqud(char_code: number): boolean;
/**
 * @returns true if the given character code is a ta'am (cantillation diacritic) character.
 */
export declare function is_taam_code(char_chode: number): boolean;
/**
 * @returns true if the given character code is a diacritic character (either
 * niqqud or cantillation).
 */
export declare function is_diacritic_code(char_code: number): boolean;
/**
 * @returns true if the given character is a diacritic character (either niqqud or cantillation).
 */
export declare function char_diacritic(char_code: string): boolean;
/**
 * @returns true if the given character is a niqqud (vowel diacritic) character.
 */
export declare function char_niqqud(char_code: string): boolean;
/**
 * @returns true if the given character is a ta'am (cantillation diacritic) character.
 */
export declare function char_taam(char_code: string): boolean;
/**
 * Removes diacritics from the given string.
 * @param input The input string.
 * @param type The type of diacritics to remove. Must be one of:
 * - {@link char_diacritic}: removes all diacritics (default).
 * - {@link char_niqqud}: removes all niqqud diacritics.
 * - {@link char_taam}: removes all ta'am diacritics.
 * @returns The input string with the desired diacritics removed.
 */
export declare function remove_diacritics(input: string, type?: (charCode: string) => boolean): string;
/**
 * Converts a character code from Hebrew script to Paleo-Hebrew script.
 *
 * This function is unchecked, meaning it assumes the character code belongs
 * to the Hebrew script, and otherwise returns an undefined value.
 */
export declare function char_code_to_paleo_unchecked(char_code: number): number;
/**
 * Converts a character code from Hebrew script to Paleo-Hebrew script.
 *
 * If the character code is not in the Hebrew script, returns undefined.
 */
export declare function char_code_to_paleo(char_code: number): number | undefined;
/**
 * Converts the given character from Hebrew script to Paleo-Hebrew script.
 *
 * This function is unchecked, meaning it assumes the character belongs
 * to the Hebrew script, and otherwise returns an undefined value.
 */
export declare function char_to_paleo_unchecked(char: string): string;
/**
 * Converts a character from Hebrew script to Paleo-Hebrew script.
 *
 * If the character code is not in the Hebrew script, returns undefined.
 */
export declare function char_to_paleo(char: string): string | undefined;
/** Replaces the Hebrew characters in a string to their Paleo-Hebrew equivalent. */
export declare function to_paleo(str: string): string;