export interface ResolvedScaffoldIdentifiers {
    namespace: string;
    phpPrefix: string;
    slug: string;
    textDomain: string;
}
export declare function validateBlockSlug(input: string): true | string;
export declare function validateNamespace(input: string): true | string;
export declare function validateTextDomain(input: string): true | string;
export declare function validatePhpPrefix(input: string): true | string;
export declare function assertValidIdentifier(label: string, value: string, validate: (value: string) => true | string): string;
export declare function normalizeBlockSlug(input: string): string;
/**
 * Normalize one human-entered block slug and reject values that collapse to an
 * empty generated slug.
 *
 * @param options Normalization context for one block-like name.
 * @param options.input Raw user input before kebab-case normalization.
 * @param options.label Human-readable field label used in thrown errors.
 * @param options.usage Example CLI usage shown when the input is blank.
 * @returns A non-empty normalized slug.
 * @throws When the input is blank after trimming.
 * @throws When normalization removes every character from the original input.
 */
export declare function resolveNonEmptyNormalizedBlockSlug(options: {
    input: string;
    label: string;
    usage: string;
}): string;
export declare function resolveValidatedBlockSlug(value: string): string;
export declare function resolveValidatedNamespace(value: string): string;
export declare function resolveValidatedTextDomain(value: string): string;
export declare function resolveValidatedPhpPrefix(value: string): string;
/**
 * Builds the generated WordPress wrapper CSS class for a scaffolded block.
 *
 * Returns `wp-block-{namespace}-{slug}` when a non-empty namespace is present,
 * or `wp-block-{slug}` when the namespace is empty or undefined. When the
 * normalized namespace equals the normalized slug, appends `-block` so the
 * generated class avoids repeated namespace segments without colliding with the
 * default core wrapper classes. Both inputs are normalized and validated with
 * the same scaffold identifier rules used for block names.
 */
export declare function buildBlockCssClassName(namespace: string | undefined, slug: string): string;
export declare function buildFrontendCssClassName(blockCssClassName: string): string;
export declare function resolveScaffoldIdentifiers({ namespace, phpPrefix, slug, textDomain }: {
    namespace: string;
    phpPrefix?: string;
    slug: string;
    textDomain?: string;
}): ResolvedScaffoldIdentifiers;