go integration and wikipedia

frontend/node_modules/date-fns/parse/_lib/parsers/ExtendedYearParser.mjs

@@ -0,0 +1,22 @@
+import { Parser } from "../Parser.mjs";
+import { parseNDigitsSigned } from "../utils.mjs";
+
+export class ExtendedYearParser extends Parser {
+  priority = 130;
+
+  parse(dateString, token) {
+    if (token === "u") {
+      return parseNDigitsSigned(4, dateString);
+    }
+
+    return parseNDigitsSigned(token.length, dateString);
+  }
+
+  set(date, _flags, value) {
+    date.setFullYear(value, 0, 1);
+    date.setHours(0, 0, 0, 0);
+    return date;
+  }
+
+  incompatibleTokens = ["G", "y", "Y", "R", "w", "I", "i", "e", "c", "t", "T"];
+}