import { normalizeGeneratedNewlines } from '../text/index';
/**
 * Tiny helpers for agent-authored plain text before it becomes slide HTML.
 *
 * Models often emit:
 *  - literal escape sequences (`\n`, `\r\n`, `\r`) instead of real newlines
 *  - HTML entities (`&`, ` `, `„`, …) instead of characters
 *
 * Newline recovery uses the shared CommonMark/math parser to preserve literal
 * code and TeX. Markdown rendering and editable run styling live in markdown.ts.
 */
/** Decode complete HTML entities, including invalid numeric references safely. */
export declare function decodeHtmlEntities(text: string): string;
/** Shared parser-backed recovery; code and math source are never decoded. */
export declare const unescapeAgentNewlines: typeof normalizeGeneratedNewlines;
/**
 * Convert real newlines (`\r\n` / `\r` / `\n`) to `<br/>` for HTML `content` paths.
 * Literal escape sequences are unescaped first. Entity decoding runs only when the
 * input does not already look like HTML, so intentional `&amp;` in markup is kept.
 */
export declare function agentTextToHtmlBreaks(text: string): string;