Handling xx.yyy-zz format

app.py

@@ -197,7 +197,7 @@ class SpecDocFinder:
                 item = items[-1].find("a")
             except Exception as e:
                 return f"Unable to find specification {doc_id} : {e}"
-            a, b, c = [_ for _ in item.get_text().split("-")[1].replace(".zip", "")]
+            a, b, c = [_ for _ in item.get_text().split("-")[-1].replace(".zip", "")]
             version = f"{self.chars.index(a)}.{self.chars.index(b)}.{self.chars.index(c)}"
             version_found = (version, item.get("href"))
             _, spec_url = version_found
@@ -206,7 +206,7 @@ class SpecDocFinder:
             for item in items:
                 x = item.find("a")
                 if f"{doc_id.replace('.', '')}-{self.chars[int(release)]}" in x.get_text():
-                    a, b, c = [_ for _ in x.get_text().split("-")[1].replace(".zip", "")]
+                    a, b, c = [_ for _ in x.get_text().split("-")[-1].replace(".zip", "")]
                     version = f"{self.chars.index(a)}.{self.chars.index(b)}.{self.chars.index(c)}"
                     version_found = (version, x.get("href"))
             _, spec_url = version_found