// Type definitions for argparse v1.0.3
// Project: https://github.com/nodeca/argparse
// Definitions by: Andrew Schurman <http://github.com/arcticwaters>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped


export declare class ArgumentParser extends ArgumentGroup {
    constructor(options?: ArgumentParserOptions);

    addSubparsers(options?: SubparserOptions): SubParser;
    parseArgs(args?: string[], ns?: Namespace | Object): any;
    printUsage(): void;
    printHelp(): void;
    formatUsage(): string;
    formatHelp(): string;
    parseKnownArgs(args?: string[], ns?: Namespace | Object): any[];
    convertArgLineToArg(argLine: string): string[];
    exit(status: number, message: string): void;
    error(err: string | Error): void;
}

interface Namespace { }

declare class SubParser {
    addParser(name: string, options?: SubArgumentParserOptions): ArgumentParser;
}

declare class ArgumentGroup {
    addArgument(args: string[], options?: ArgumentOptions): void;
    addArgumentGroup(options?: ArgumentGroupOptions): ArgumentGroup;
    addMutuallyExclusiveGroup(options?: { required: boolean }): ArgumentGroup;
    setDefaults(options?: {}): void;
    getDefault(dest: string): any;
}

interface SubparserOptions {
    title?: string;
    description?: string;
    prog?: string;
    parserClass?: { new (): any };
    action?: string;
    dest?: string;
    help?: string;
    metavar?: string;
}

interface SubArgumentParserOptions extends ArgumentParserOptions {
    aliases?: string[];
    help?: string;
}

interface ArgumentParserOptions {
    description?: string;
    epilog?: string;
    addHelp?: boolean;
    argumentDefault?: any;
    parents?: ArgumentParser[];
    prefixChars?: string;
    formatterClass?: { new (): HelpFormatter | ArgumentDefaultsHelpFormatter | RawDescriptionHelpFormatter | RawTextHelpFormatter };
    prog?: string;
    usage?: string;
    version?: string;
}

interface ArgumentGroupOptions {
    prefixChars?: string;
    argumentDefault?: any;
    title?: string;
    description?: string;
}

export declare class HelpFormatter { }
export declare class ArgumentDefaultsHelpFormatter { }
export declare class RawDescriptionHelpFormatter { }
export declare class RawTextHelpFormatter { }

interface ArgumentOptions {
    action?: string;
    optionStrings?: string[];
    dest?: string;
    nargs?: string | number;
    constant?: any;
    defaultValue?: any;
    type?: string | Function;
    choices?: string | string[];
    required?: boolean;
    help?: string;
    metavar?: string;
}