chore: import upstream snapshot with attribution

2026-07-13 12:29:08 +08:00
commit eec33d25b2
2417 changed files with 650181 additions and 0 deletions
@@ -0,0 +1,44 @@
+// Enables MathJax rendering only on pages that contain math.
+window.MathJax = {
+  tex: {
+    inlineMath: [["\\(", "\\)"]],
+    displayMath: [["\\[", "\\]"]],
+    processEscapes: true,
+    processEnvironments: true,
+  },
+  options: {
+    ignoreHtmlClass: ".*|",
+    processHtmlClass: "arithmatex",
+  },
+};
+
+let mathJaxLoading;
+
+function loadMathJax() {
+  if (window.MathJax.typesetPromise) {
+    return Promise.resolve();
+  }
+  if (!mathJaxLoading) {
+    mathJaxLoading = new Promise((resolve, reject) => {
+      const script = document.createElement("script");
+      script.src = "https://unpkg.com/mathjax@3.2.2/es5/tex-mml-chtml.js";
+      script.async = true;
+      script.onload = resolve;
+      script.onerror = reject;
+      document.head.appendChild(script);
+    });
+  }
+  return mathJaxLoading;
+}
+
+document$.subscribe(() => {
+  if (!document.querySelector(".arithmatex")) {
+    return;
+  }
+  loadMathJax().then(() => {
+    MathJax.startup.output.clearCache();
+    MathJax.typesetClear();
+    MathJax.texReset();
+    MathJax.typesetPromise();
+  });
+});