diff --git a/_importer.py b/_importer.py
index 6c15d099e..b9f9633cc 100644
--- a/_importer.py
+++ b/_importer.py
@@ -6,6 +6,47 @@ def save_signature(name, link, author):
         f.write(f"name: {name.strip()}\nlink: {link.strip()}\n")
 
 
+# Apparently most people can't follow a two-line template, e.g. miss 'name:' or
+# 'link:' or use 'site:' instead of 'link:' or use 'mailto:' instead of
+# 'link: mailto:', etc., so we have to guess in what way their interpretation is
+# wrong, and try to make the format at least somewhat correct.
+def import_signature_from_lines(name, link, author):
+    if name.lower().startswith("name:"):
+        name = name[5:]
+
+    if link.lower().startswith("link:"):
+        link = link[5:]
+    elif link.lower().startswith("site:"):
+        link = link[5:]
+    elif link.lower().startswith("mail:"):
+        link = "mailto:" + link[5:].strip()
+    elif link.lower().startswith("email:"):
+        link = "mailto:" + link[6:].strip()
+    elif link.lower().startswith("mailto:"):
+        link = "mailto:" + link[7:].strip()
+
+    # Demangle email
+    if "@" in link or "(at)" in link or "[at]" in link:
+        link = link.replace("[at]", "@")
+        link = link.replace("(at)", "@")
+        link = link.replace(" at ", "@")
+        link = link.replace("[dot]", ".")
+        link = link.replace("(dot)", ".")
+        link = link.replace(" dot ", ".")
+        link = link.replace(" ", "")
+
+    # Add protocol to links without it
+    if "://" not in link:
+        if "@" in link:
+            if not link.startswith("mailto:"):
+                link = f"mailto:{link}"
+        elif link.startswith("www.") or link.endswith(".com"):
+            link = f"https://{link}"
+
+    if "/" in link or "@" in link:
+        save_signature(name, link, author)
+
+
 def parse_and_import_signature(content, author):
     if os.path.isfile(f"_data/signed/{author}.yaml"):
         return
@@ -14,47 +55,7 @@ def parse_and_import_signature(content, author):
     imported = False
     for i in range(len(content_lines) - 1):
         if content_lines[i].lower().startswith("name:") and content_lines[i + 1].lower().startswith("link:"):
-            save_signature(content_lines[i][5:], content_lines[i + 1][5:], author)
+            import_signature_from_lines(content_lines[i], content_lines[i + 1], author)
             imported = True
-
-    # Apparently most people can't follow a two-line template, e.g. miss 'name:'
-    # or 'link:' or use 'site:' instead of 'link:' or use 'mailto:' instead of
-    # 'link: mailto:', etc., so we have to guess in what way their
-    # interpretation is wrong, and try to make the format at least somewhat
-    # correct.
     if not imported and len(content_lines) == 2:
-        name, link = content_lines
-
-        if name.lower().startswith("name:"):
-            name = name[5:]
-
-        if link.lower().startswith("link:"):
-            link = link[5:]
-        elif link.lower().startswith("site:"):
-            link = link[5:]
-        elif link.lower().startswith("mail:"):
-            link = "mailto:" + link[5:].strip()
-        elif link.lower().startswith("email:"):
-            link = "mailto:" + link[6:].strip()
-        elif link.lower().startswith("mailto:"):
-            link = "mailto:" + link[7:].strip()
-
-        # Demangle email
-        if "@" in link or "(at)" in link or "[at]" in link:
-            link = link.replace("[at]", "@")
-            link = link.replace("(at)", "@")
-            link = link.replace(" at ", "@")
-            link = link.replace("[dot]", ".")
-            link = link.replace("(dot)", ".")
-            link = link.replace(" dot ", ".")
-            link = link.replace(" ", "")
-
-        # Add protocol to links without it
-        if "@" in link:
-            if not link.startswith("mailto:"):
-                link = f"mailto:{link}"
-        elif link.startswith("www.") or link.endswith(".com"):
-            link = f"https://{link}"
-
-        if "/" in link or "@" in link:
-            save_signature(name, link, author)
+        import_signature_from_lines(*content_lines, author)