/**
 * Strip ANSI escape sequences, remove control characters / lone surrogates,
 * and normalize line endings.
 *
 * Bun-native implementation of the former native `sanitizeText` (see
 * `crates/pi-natives/src/text.rs::sanitize_text`). JavaScript strings are
 * already UTF-16 code-unit arrays. `toWellFormed()` handles the uncommon
 * malformed path; when it changes the input, replacement characters are
 * dropped and the normalized result goes through the well-formed sanitizer.
 *
 * Fast path: well-formed input with no controls or ANSI returns the original
 * string after the control probe.
 */
export declare function sanitizeText(text: string): string;
/**
 * Escape the three XML-significant characters (`&`, `<`, `>`) in text destined
 * for an XML/markup element body. Allocation-conscious: returns the input
 * unchanged (same reference) when nothing needs escaping. Quotes are left as-is
 * — use it for element text, not attribute values.
 */
export declare function escapeXmlText(input: string): string;
/**
 * Escape XML-significant characters for an attribute VALUE: the three body
 * characters (`&`, `<`, `>`) plus the double quote (`"` → `&quot;`) that would
 * otherwise close the attribute. Allocation-conscious: returns the input
 * unchanged (same reference) when nothing needs escaping. Use it for attribute
 * values; {@link escapeXmlText} is for element bodies and leaves `"` intact.
 */
export declare function escapeXmlAttribute(input: string): string;