UPDATE: Dump of initial files

xlsx/src/export/test/test_escape.rs

@@ -0,0 +1,25 @@
+use crate::export::escape::escape_xml;
+
+#[test]
+fn test_escape_xml() {
+    assert_eq!(escape_xml("all good"), "all good");
+    assert_eq!(escape_xml("3 < 4"), "3 &lt; 4");
+    assert_eq!(escape_xml("3 > 4"), "3 &gt; 4");
+    assert_eq!(escape_xml("3 & 4"), "3 &amp; 4");
+    assert_eq!(escape_xml("3 && 4"), "3 &amp;&amp; 4");
+    assert_eq!(escape_xml("3 \"literal\" 4"), "3 &quot;literal&quot; 4");
+    assert_eq!(
+        escape_xml("I don't 'know'"),
+        "I don&apos;t &apos;know&apos;"
+    );
+    assert_eq!(
+        escape_xml("This is <>&\"' say"),
+        "This is &lt;&gt;&amp;&quot;&apos; say"
+    );
+}
+
+// '&' => "&amp;"
+// '<' "&lt;")
+// '>' => "&gt;"
+// '"' => "&quot;"
+// '\'' => "&apos;"