/**
 * Markdown math delimiter preprocessor.
 *
 * Disambiguates `$` characters in markdown so that remark-math correctly
 * distinguishes LaTeX math (`$x = \frac{1}{2}$`) from currency (`$2,847,500`).
 *
 * Uses a three-pass priority algorithm over `$` positions:
 *   1. Commit pairs matching LaTeX patterns (highest priority)
 *   2. Pair remaining positions; escape currency patterns
 *   3. Escape lone `$` adjacent to committed LaTeX pairs
 *
 * Also normalizes `\$` inside LaTeX spans into a KaTeX-compatible form,
 * since remark-math does not treat `\$` as escaped within math delimiters.
 *
 * No-ops on input without `$`. Skips fenced code blocks and inline code spans.
 */
/**
 * Preprocess markdown to disambiguate `$` math delimiters from currency signs.
 *
 * Classification priority: LaTeX (preserve) > currency (escape) > uncertain (preserve).
 * Skips fenced code blocks and inline code spans.
 */
export declare function preprocessMathDelimiters(markdown: string): string;
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