/**
 * Normalize arbitrary text into a kebab-case identifier.
 * Common acronym runs stay grouped, with a boundary before the next
 * capitalized word or before a narrow allow-list of lowercase WordPress slug
 * terms. Naturalized words such as `RESTful` intentionally stay as one word.
 *
 * @param input Raw text that may contain spaces, punctuation, or camelCase.
 * @returns A lowercase kebab-case string with collapsed separators.
 */
export declare function toKebabCase(input: string): string;
/**
 * Normalize arbitrary text into a snake_case identifier.
 *
 * @param input Raw text that may contain spaces, punctuation, or camelCase.
 * @returns A lowercase snake_case string derived from the kebab-case form.
 */
export declare function toSnakeCase(input: string): string;
/**
 * Normalize arbitrary text into a PascalCase identifier.
 *
 * @param input Raw text that may contain spaces, punctuation, or camelCase.
 * @returns A PascalCase string derived from the normalized kebab-case form.
 */
export declare function toPascalCase(input: string): string;
/**
 * Normalize arbitrary text into a camelCase identifier.
 *
 * @param input Raw text that may contain spaces, punctuation, or camelCase.
 * @returns A camelCase string derived from the normalized PascalCase form.
 */
export declare function toCamelCase(input: string): string;
/**
 * Convert delimited text to PascalCase while preserving each segment's
 * existing internal casing.
 *
 * @param input Raw text split on non-alphanumeric boundaries.
 * @returns A PascalCase string that preserves acronyms inside segments.
 */
export declare function toSegmentPascalCase(input: string): string;
/**
 * Normalize arbitrary text into a human-readable title.
 *
 * @param input Raw text that may contain spaces, punctuation, or camelCase.
 * @returns A title-cased string derived from the normalized kebab-case form.
 */
export declare function toTitleCase(input: string): string;