import { Option } from '../Option';
import { Array } from '../types';
/** Converts the given value to a string. */
export declare function make<A>(value: A): string;
/** Returns the length of the given string. */
export declare function length(str: string): number;
/** Returns a new string with `appendValue` added after `str`. */
export declare function concat(appendValue: string): (str: string) => string;
export declare function concat(str: string, appendValue: string): string;
/** Alias for `concat`. */
export declare function append(appendValue: string): (str: string) => string;
export declare function append(str: string, appendValue: string): string;
/** Returns a new string with `prependValue` added before `str`. */
export declare function prepend(prependValue: string): (str: string) => string;
export declare function prepend(str: string, prependValue: string): string;
/** Returns the substring of `str` starting at character `start` up to but not including `end`. */
export declare function slice(str: string, start: number, end: number): string;
export declare function slice(start: number, end: number): (str: string) => string;
/** Returns the substring of `str` starting at character `start` to the end of the string. */
export declare function sliceToEnd(str: string, start: number): string;
export declare function sliceToEnd(start: number): (str: string) => string;
/** Converts `str` to lower case. */
export declare function toLowerCase(str: string): string;
/** Converts `str` to upper case. */
export declare function toUpperCase(str: string): string;
/** Returns a new string with leading and trailing whitespace removed from `str`. */
export declare function trim(str: string): string;
/** Returns a new string with leading whitespace removed from `str`. */
export declare function trimStart(str: string): string;
/** Returns a new string with trailing whitespace removed from `str`. */
export declare function trimEnd(str: string): string;
/** Returns `true` if the provided string is empty. */
export declare function isEmpty(str: string): boolean;
/** Returns `true` if the provided string is not empty. */
export declare function isNotEmpty(str: string): boolean;
/** Splits the given string at every occurrence of `delimiter` and returns an array of the resulting substrings. */
export declare function split(delimiter: string): (str: string) => Array<string>;
export declare function split(str: string, delimiter: string): Array<string>;
/** Splits the given string at every occurrence of `regex` and returns an array of the resulting substrings. */
export declare function splitByRe(str: string, regex: RegExp): Array<Option<string>>;
export declare function splitByRe(regex: RegExp): (str: string) => Array<Option<string>>;
/** Splits the string at the given index, returning a tuple of the parts. */
export declare function splitAt(str: string, index: number): readonly [string, string];
export declare function splitAt(index: number): (str: string) => readonly [string, string];
/** Returns `true` if `searchValue` appears anywhere in the given string. */
export declare function includes(searchValue: string): (str: string) => boolean;
export declare function includes(str: string, searchValue: string): boolean;
/** Replaces the first occurrence of `oldValue` with `newValue` in the given string and returns a new string. */
export declare function replace(oldValue: string, newValue: string): (str: string) => string;
export declare function replace(str: string, oldValue: string, newValue: string): string;
/** Replaces each occurrence of `oldValue` with `newValue` in the given string and returns a new string. */
export declare function replaceAll(oldValue: string, newValue: string): (str: string) => string;
export declare function replaceAll(str: string, oldValue: string, newValue: string): string;
/** Replaces the matched regular expression with `newValue` in the given string and returns a new string. */
export declare function replaceByRe(str: string, regex: RegExp, value: string): string;
export declare function replaceByRe(regex: RegExp, value: string): (str: string) => string;
/** Returns a new string with the first occurrence of `value` removed from `str`. */
export declare function remove(value: string): (str: string) => string;
export declare function remove(str: string, value: string): string;
/** Returns a new string with every occurrence of `value` removed from `str`. */
export declare function removeAll(value: string): (str: string) => string;
export declare function removeAll(str: string, value: string): string;
/** Returns `Some(index)`, where `index` is the starting position of the first match of regular expression in the given string. */
export declare function search(str: string, regex: RegExp): Option<number>;
export declare function search(regex: RegExp): (str: string) => Option<number>;
/** Matches the given string against the provided regular expression, ir returns `None` if there is no match. */
export declare function match(str: string, regex: RegExp): Option<Array<string>>;
export declare function match(regex: RegExp): (str: string) => Option<Array<string>>;
/** Returns a string consisting of `n` repetitions of `str`. */
export declare function repeat(str: string, n: number): string;
export declare function repeat(n: number): (str: string) => string;
/** Returns `Some(index)`, where `index` is the starting position of the first occurrence of `searchValue` within `str`. */
export declare function indexOf(searchValue: string): (str: string) => Option<number>;
export declare function indexOf(str: string, searchValue: string): Option<number>;
/** Returns `Some(index)`, where `index` is the starting position of the last occurrence of `searchValue` within `str`. */
export declare function lastIndexOf(searchValue: string): (str: string) => Option<number>;
export declare function lastIndexOf(str: string, searchValue: string): Option<number>;
/** Returns `true` if the given string ends with `substr`. */
export declare function endsWith(substr: string): (str: string) => boolean;
export declare function endsWith(str: string, substr: string): boolean;
/** Returns `true` if the given string starts with `substr`. */
export declare function startsWith(substr: string): (str: string) => boolean;
export declare function startsWith(str: string, substr: string): boolean;
/** Returns `value`, where `value` is a string consisting of the character at location `n` in the string, or `undefined` if the `n` is out of range. */
export declare function getUnsafe(str: string, n: number): string;
export declare function getUnsafe(n: number): (str: string) => string;
/** Returns `Some(value)`, where `value` is a string consisting of the character at location `n` in the string, or `None` if the `n` is out of range. */
export declare function get(str: string, n: number): Option<string>;
export declare function get(n: number): (str: string) => Option<string>;
/** Creates an array with one character of `str` per element. */
export declare function toArray(str: string): Array<string>;
/** Returns `Some(value)` where `value` is the first character of the string, or `None` if the given string is empty. */
export declare function head(str: string): Option<string>;
/** Returns `Some(value)` where `value` is the last character of the string, or `None` if the given string is empty. */
export declare function last(str: string): Option<string>;