Added general content blocks

src/lib/site/index.ts

@@ -69,6 +69,7 @@ export function buildSite(content: Content, visibility: Visibility): Site {
     pages,
     tags,
     byPath,
+    known: new Set(content.articles.keys()),
     roots,
     diagnostics: [...content.diagnostics, ...problems.list],
   }

src/lib/site/links.ts

@@ -0,0 +1,10 @@
+import type { LinkTarget } from '../markdoc/types'
+import type { Site } from './types'
+
+export const linkTo =
+  (site: Site) =>
+  (id: string): LinkTarget => {
+    const article = site.articles.get(id)
+    if (article) return { path: article.path }
+    return site.known.has(id) ? { path: null } : undefined
+  }

src/lib/site/types.ts

@@ -33,6 +33,7 @@ export type Site = {
   pages: Map<string, Page>
   tags: Map<string, Tag>
   byPath: Map<string, Routed>
+  known: Set<string>
   roots: Article[]
   diagnostics: Diagnostic[]
 }