import { CommandSpec } from './types.ts';
export declare const SHELL_SPECS: Readonly<{
    xargs: CommandSpec;
    timeout: CommandSpec;
    read: CommandSpec;
    mapfile: CommandSpec;
}>;
/**
 * Result of a strict leading-option scan for a shell builtin.
 *
 * Wrapper builtins (xargs, timeout) stop option parsing at the first
 * operand, since everything after it belongs to the wrapped command;
 * the mount-command parser scans the whole line and warns-ignores
 * unknown flags, which is wrong on both counts here. The builtin owns
 * the error message and exit code (GNU shapes differ per tool), so
 * the parse only reports what went wrong.
 */
export interface ShellParse {
    flags: Record<string, string | boolean>;
    operands: string[];
    invalid: string | null;
    needsValue: string | null;
}
/** Scan leading options the way getopt does for a shell builtin. */
export declare function parseShellOptions(spec: CommandSpec, argv: readonly string[]): ShellParse;
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