[Init] Initial commit - NetMesh terminal manager

components/notes/noteMathRenderer.ts

@@ -0,0 +1,27 @@
+import katex, { type KatexOptions } from "katex";
+
+export const NOTE_MATH_KATEX_OPTIONS: KatexOptions = Object.freeze({
+  displayMode: true,
+  output: "htmlAndMathml",
+  throwOnError: false,
+  strict: "warn",
+  trust: false,
+  maxExpand: 1_000,
+  maxSize: 20,
+});
+
+export const normalizeNoteMathSource = (source: string): string => {
+  const trimmed = source.trim();
+  if (trimmed.length >= 4 && trimmed.startsWith("$$") && trimmed.endsWith("$$")) {
+    return trimmed.slice(2, -2).trim();
+  }
+  if (trimmed.length >= 4 && trimmed.startsWith("\\[") && trimmed.endsWith("\\]")) {
+    return trimmed.slice(2, -2).trim();
+  }
+  return trimmed;
+};
+
+export const renderNoteMathFormula = (source: string): string => katex.renderToString(
+  normalizeNoteMathSource(source),
+  NOTE_MATH_KATEX_OPTIONS,
+);