/**
 * [PAGE] body transform: markdown-first with Svelte conveniences.
 *
 * The body is CommonMark/GFM; prose passes through untouched so
 * `{expression}` interpolation and `<Component />` islands compile in the
 * generated Svelte preview. Code fences and inline code are INERT: they are
 * highlighted (fences) or wrapped (inline) at transform time with `{` and
 * `}` escaped, so nothing inside code ever interpolates.
 */
import type { TocHeading } from '../types.js';
export interface RenderedPage {
    html: string;
    toc: TocHeading[];
    /** Text of the body's first `#` heading, when present — it takes over as
     * the page's displayed title. */
    bodyTitle?: string;
}
/**
 * Render a [PAGE] body: Svelte islands (see segmentPageBody) pass through
 * verbatim — markdown never splits a snippet or an HTML section — and the
 * prose between them renders as markdown. Islands land at the top level of
 * the compiled fragment, so a snippet declared anywhere is renderable from
 * anywhere on the page.
 */
/**
 * Prefix root-absolute src/href URLs in rendered page HTML with the build's
 * public base path. Markdown like `![x](/sample.svg)` or `[a](/guides/colors)`
 * refers to the site root; under a sub-path deploy (GitHub project Pages) the
 * site root is `/repo/`, and Vite only rewrites assets it processes — not
 * URLs inside runtime HTML strings. Protocol-relative (`//`) URLs and dev
 * virtual paths (`/@`) pass through; a root base is a no-op.
 */
export declare function applyBaseToHtml(html: string, base: string): string;
export declare function renderPageMarkdown(source: string): Promise<RenderedPage>;