/**
 * Converts LaTeX bracket delimiters to dollar sign delimiters.
 * Converts \[...\] to $$...$$ and \(...\) to $...$
 * Preserves code blocks during the conversion.
 *
 * @param text The input string containing LaTeX expressions
 * @returns The string with LaTeX bracket delimiters converted to dollar sign delimiters
 */
export declare function convertLatexDelimiters(text: string): string;
/**
 * Escapes mhchem commands in LaTeX expressions to ensure proper rendering.
 *
 * @param text The input string containing LaTeX expressions with mhchem commands
 * @returns The string with escaped mhchem commands
 */
export declare function escapeMhchemCommands(text: string): string;
/**
 * Escapes pipe characters within LaTeX expressions to prevent them from being interpreted
 * as table column separators in markdown tables.
 *
 * @param text The input string containing LaTeX expressions
 * @returns The string with pipe characters escaped in LaTeX expressions
 */
export declare function escapeLatexPipes(text: string): string;
/**
 * Escapes underscores within \text{...} commands in LaTeX expressions
 * that are not already escaped.
 * For example, \text{node_domain} becomes \text{node\_domain},
 * but \text{node\_domain} remains \text{node\_domain}.
 *
 * @param text The input string potentially containing LaTeX expressions
 * @returns The string with unescaped underscores escaped within \text{...} commands
 */
export declare function escapeTextUnderscores(text: string): string;
/**
 * Preprocesses LaTeX content by performing multiple operations:
 * 1. Protects code blocks from processing
 * 2. Protects existing LaTeX expressions
 * 3. Escapes dollar signs that likely represent currency
 * 4. Converts LaTeX delimiters
 * 5. Escapes mhchem commands and pipes
 *
 * @param content The input string containing LaTeX expressions
 * @returns The processed string with proper LaTeX formatting
 */
export declare function preprocessLaTeX(str: string): string;
/**
 * Checks if the last LaTeX formula in the text is renderable.
 * Only validates the formula after the last $$ if there's an odd number of $$.
 *
 * @param text The input string containing LaTeX formulas
 * @returns True if the last formula is renderable or if there's no incomplete formula
 */
export declare const isLastFormulaRenderable: (text: string) => boolean;