/**
 * @description Pads the end of a string with a specified character.
 * @summary Extends the input string to a specified length by adding a padding character to the end.
 * If the input string is already longer than the specified length, it is returned unchanged.
 *
 * @param {string} str - The input string to be padded.
 * @param {number} length - The desired total length of the resulting string.
 * @param {string} [char=" "] - The character to use for padding. Defaults to a space.
 * @return {string} The padded string.
 * @throws {Error} If the padding character is not exactly one character long.
 *
 * @function padEnd
 *
 * @memberOf module:TextUtils
 */
export declare function padEnd(str: string, length: number, char?: string): string;
/**
 * @description Replaces placeholders in a string with provided values.
 * @summary Interpolates a string by replacing placeholders of the form ${variableName}
 * with corresponding values from the provided object. If a placeholder doesn't have
 * a corresponding value, it is left unchanged in the string.
 *
 * @param {string} input - The input string containing placeholders to be replaced.
 * @param {Record<string, number | string>} values - An object containing key-value pairs for replacement.
 * @return {string} The interpolated string with placeholders replaced by their corresponding values.
 *
 * @function patchPlaceholders
 *
 * @mermaid
 * sequenceDiagram
 *   participant Caller
 *   participant patchString
 *   participant String.replace
 *   Caller->>patchString: Call with input and values
 *   patchString->>String.replace: Call with regex and replacement function
 *   String.replace->>patchString: Return replaced string
 *   patchString-->>Caller: Return patched string
 *
 * @memberOf module:TextUtils
 */
export declare function patchPlaceholders(input: string, values: Record<string, number | string>): string;
export declare function patchString(input: string, values: Record<string, number | string>, flags?: string): string;
/**
 * @description Converts a string to camelCase.
 * @summary Transforms the input string into camelCase format, where words are joined without spaces
 * and each word after the first starts with a capital letter.
 *
 * @param {string} text - The input string to be converted.
 * @return {string} The input string converted to camelCase.
 *
 * @function toCamelCase
 *
 * @memberOf module:TextUtils
 */
export declare function toCamelCase(text: string): string;
/**
 * @description Converts a string to ENVIRONMENT_VARIABLE format.
 * @summary Transforms the input string into uppercase with words separated by underscores,
 * typically used for environment variable names.
 *
 * @param {string} text - The input string to be converted.
 * @return {string} The input string converted to ENVIRONMENT_VARIABLE format.
 *
 * @function toENVFormat
 *
 * @memberOf module:TextUtils
 */
export declare function toENVFormat(text: string): string;
/**
 * @description Converts a string to snake_case.
 * @summary Transforms the input string into lowercase with words separated by underscores.
 *
 * @param {string} text - The input string to be converted.
 * @return {string} The input string converted to snake_case.
 *
 * @function toSnakeCase
 *
 * @memberOf module:TextUtils
 */
export declare function toSnakeCase(text: string): string;
/**
 * @description Converts a string to kebab-case.
 * @summary Transforms the input string into lowercase with words separated by hyphens.
 *
 * @param {string} text - The input string to be converted.
 * @return {string} The input string converted to kebab-case.
 *
 * @function toKebabCase
 *
 * @memberOf module:TextUtils
 */
export declare function toKebabCase(text: string): string;
/**
 * @description Converts a string to PascalCase.
 * @summary Transforms the input string into PascalCase format, where words are joined without spaces
 * and each word starts with a capital letter.
 *
 * @param {string} text - The input string to be converted.
 * @return {string} The input string converted to PascalCase.
 *
 * @function toPascalCase
 *
 * @memberOf module:TextUtils
 */
export declare function toPascalCase(text: string): string;
export declare function escapeRegExp(string: string): string;