export declare function asLines(s: string, trimFinalBlankLines?: boolean, trimEachLine?: boolean): string[];
export declare function compareCaseInsensitive(a: string, b: string): number;
export declare function compareCaseSecondary(a: string, b: string): number;
export declare function compareStrings(a: string, b: string): number;
export declare function extendDelimited(base: string, newItem: string, delimiter?: string): string;
export declare function makePlainASCII(s: string, forFileName?: boolean): string;
export declare function makePlainASCII_lc(s: string, forFileName?: boolean): string;
export declare function makePlainASCII_UC(s: string, forFileName?: boolean): string;
export declare function isAllUppercase(s: string): boolean;
export declare function isAllUppercaseWords(s: string): boolean;
export declare function toMixedCase(s: string): string;
export interface TitleCaseOptions {
    keepAllCaps?: boolean;
    shortSmall?: string[];
    special?: string[];
}
export declare function toTitleCase(s: string, options?: TitleCaseOptions): string;
export declare function padLeft(item: number, length: number, padChar?: string): string;
/**
 * @deprecated String.padStart() now available.
 */
export declare function padLeft(item: string, length: number, padChar?: string): string;
/**
 * @deprecated String.padEnd() now available.
 */
export declare function padRight(item: string, length: number, padChar?: string): string;
export declare function replace(str: string, searchStr: string, replaceStr: string, caseInsensitive?: boolean): string;
export declare function stripLatinDiacriticals(s: string): string;
export declare function stripLatinDiacriticals_lc(s: string): string;
export declare function stripLatinDiacriticals_UC(s: string): string;
export declare function stripDiacriticals(s: string): string;
export declare function stripDiacriticals_lc(s: string): string;
export declare function stripDiacriticals_UC(s: string): string;
export declare function zeroPad(n: number | string, digits: number): string;
export declare function regexEscape(s: string): string;
export declare function convertDigitsToAscii(n: string, info?: string[]): string;
export declare function convertDigits(n: string, baseDigit: string): string;
export declare function isDigit(ch: string): boolean;
export declare function digitScript(ch: string | null | undefined): string | undefined;
export declare function toMaxFixed(n: number, maximumFractionDigits: number, locale?: string, useGrouping?: boolean): string;
export declare function toMaxSignificant(n: number, maximumSignificantDigits: number, locale?: string | null, useGrouping?: boolean): string;
export declare function checksum53(s: string, seed?: number): string;
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