fix: replace require() with dependency injection for ESM compatibility

src/inline-renderer.ts

@@ -83,12 +83,11 @@ function renderInline(
 			}
 			// Render footnote content inline
 			try {
+				if (!context.renderBlock) {
+					throw new Error('renderBlock not available in context');
+				}
 				const content = def.children
-					.map((child) => {
-						// Import renderBlock only when needed to avoid circular dependencies
-						const { renderBlock } = require('./block-renderer.js');
-						return renderBlock(child, 0, context);
-					})
+					.map((child) => context.renderBlock!(child, 0, context))
 					.filter(isNonEmpty)
 					.join(' '); // Join blocks with space for inline footnote
 				return `#footnote[${content.trim()}]`;

src/markdown2typst.ts

@@ -16,6 +16,7 @@ import { parseMarkdown } from './parser.js';
 import { collectDefinitions, collectFootnotes, findLeadingH1 } from './collectors.js';
 import { parseFrontmatter, mergeMetadata } from './frontmatter.js';
 import { buildOutput } from './output-builder.js';
+import { renderBlock } from './block-renderer.js';
 
 // Re-export types for public API
 export type { Markdown2TypstOptions, ConversionError, ErrorCallback } from './types.js';
@@ -76,7 +77,8 @@ export function markdown2typst(markdown: string, options: Markdown2TypstOptions
 			definitions,
 			footnoteDefinitions,
 			onError: options.onError,
-			warnings: { externalImages: false }
+			warnings: { externalImages: false },
+			renderBlock
 		};
 		return buildOutput(tree, metadata, leadingH1?.index ?? null, context);
 	} catch (error) {

src/types.ts

@@ -144,6 +144,15 @@ export type ConversionWarnings = {
 	externalImages: boolean;
 };
 
+/**
+ * Block renderer function type for dependency injection
+ */
+export type BlockRenderer = (
+	node: import('mdast').Content,
+	indentLevel: number,
+	context: RenderContext
+) => string | null;
+
 /**
  * Context for rendering nodes
  */
@@ -153,4 +162,6 @@ export type RenderContext = {
 	onError?: ErrorCallback;
 	/** Track conversion warnings for generating helper functions */
 	warnings: ConversionWarnings;
+	/** Block renderer function (injected to avoid circular imports) */
+	renderBlock?: BlockRenderer;
 };