Add for JATS as well.

Author: rowanc1

packages/myst-cli/src/build/jats/single.ts

@@ -14,6 +14,17 @@ import { resolveFrontmatterParts } from '../../utils/resolveFrontmatterParts.js'
 import type { ExportWithOutput, ExportFnOptions } from '../types.js';
 import { cleanOutput } from '../utils/cleanOutput.js';
 import { getFileContent } from '../utils/getFileContent.js';
+import { mermaidPlugin } from '../../transforms/mermaid.js';
+import type { TransformSpec } from 'myst-common';
+
+const mermaidTransform: TransformSpec = {
+  name: 'mermaid',
+  stage: 'document',
+  plugin: mermaidPlugin,
+  options: {
+    format: 'png',
+  },
+};
 
 /**
  * Build a MyST project as JATS XML
@@ -39,6 +50,7 @@ export async function runJatsExport(
       projectPath,
       imageExtensions: KNOWN_IMAGE_EXTENSIONS,
       extraLinkTransformers,
+      transforms: [mermaidTransform],
       preFrontmatters: [
         filterKeys(article, [...PAGE_FRONTMATTER_KEYS, ...Object.keys(FRONTMATTER_ALIASES)]),
       ], // only apply to article, not sub_articles