/**
 * Makes the first letter of [str] uppercase.
 * Not locale aware.
 */
export declare function uncapitalize(str: string): string;
/**
 * Makes the first letter of [str] lowercase.
 * Not locale aware.
 */
export declare function capitalize(str: string): string;
/**
 * Capitalizes and joins all [parts].
 */
export declare function pascalCase(...parts: string[]): string;
/**
 * Joins all [parts] and camelcases the result
 */
export declare function camelCase(...parts: string[]): string;
/**
 * Turns a kebab-case string into a constant case string.
 */
export declare function kebabToConstant(input: string): string;
/**
 * Turns a kebab-case string into a PascalCase string.
 */
export declare function kebabToPascal(input: string): string;
/**
 * Generates a string for `base` by add a number until it's unique amongst a set of predefined names.
 */
export declare function generateUniqueString(base: string, existingNames: Set<string>): string;
/**
 * Escape string for use in HTML.
 */
export declare function escapeHtml(unsafe: string): string;
/**
 * Normalizes and removes all diacritics from a javascript string.
 *
 * See https://stackoverflow.com/a/37511463
 */
export declare function removeDiacritics(input: string): string;
export declare function isAbsoluteUrl(maybeUrl: string): boolean;
/**
 * Removes a prefix from a string if it starts with it.
 */
export declare function removePrefix(input: string, prefix: string): string;
/**
 * Removes a suffix from a string if it ends with it.
 */
export declare function removeSuffix(input: string, suffix: string): string;
/**
 * Adds a prefix to a string if it doesn't start with it.
 */
export declare function ensurePrefix(input: string, prefix: string): string;
/**
 * Adds a suffix to a string if it doesn't end with it.
 */
export declare function ensureSuffix(input: string, suffix: string): string;
/**
 * Statically analyses a javascript source code for import statements and return the specifiers.
 *
 * NOTE: This function does a best effort without parsing the code. The result may contain false
 *       positives
 */
export declare function findImports(src: string): string[];
/**
 * Limits the length of a string and adds ellipsis if necessary.
 */
export declare function truncate(str: string, maxLength: number, dots?: string): string;
/**
 * Prepend a prefix to each line in the text
 */
export declare function prependLines(text: string, prefix: string): string;
/**
 * Indent the text with [length] number of spaces
 */
export declare function indent(text: string, length?: number): string;
/**
 * Returns true if the string is a valid javascript identifier
 */
export declare function isValidJsIdentifier(base: string): boolean;
export declare function guessTitle(str: string): string;