/**
 * Validators for Sqitch change and tag names according to the spec:
 * https://sqitch.org/docs/manual/sqitchchanges/
 */
/**
 * Validate a change name according to Sqitch rules:
 * - ≥1 character
 * - Cannot contain whitespace
 * - First and last characters must not be punctuation (except _)
 * - Must not end in ~, ^, /, = or % followed by digits
 * - Disallowed characters anywhere: :, @, #, \
 */
export declare function isValidChangeName(name: string): boolean;
/**
 * Validate a tag name according to Sqitch rules:
 * - Same as change name rules
 * - Additionally, must not contain /
 */
export declare function isValidTagName(name: string): boolean;
/**
 * Parse a reference that might include project qualifier and/or tag
 * Examples:
 * - "users_table"
 * - "@v1.0"
 * - "users_table@v1.0"
 * - "otherproj:users_table"
 * - "otherproj:@v1.2"
 * - "otherproj:users_table@v1.2"
 * - "40763784148fa190d75bad036730ef44d1c2eac6"
 * - "project:40763784148fa190d75bad036730ef44d1c2eac6"
 */
export interface ParsedReference {
    package?: string;
    change?: string;
    tag?: string;
    sha1?: string;
    symbolic?: 'HEAD' | 'ROOT';
    relative?: {
        base: string;
        direction: '^' | '~';
        count: number;
    };
}
/**
 * Parse a reference string into its components
 */
export declare function parseReference(ref: string): ParsedReference | null;
/**
 * Validate a dependency reference
 * Dependencies can be any valid reference format
 */
export declare function isValidDependency(dep: string): boolean;