remove account status prefix from parsed page

app/lib/domain/fa/parser/user_page_helper.rb

@@ -8,6 +8,15 @@ class Domain::Fa::Parser::UserPageHelper < Domain::Fa::Parser::Base
     @page_version = page_version
   end
 
+  # https://webcache.googleusercontent.com/search?q=cache:L85loB7VJXwJ:https://forums.furaffinity.net/threads/question-about-the-username-prefix.1655691/&cd=10&hl=en&ct=clnk&gl=us
+  PREFIXES = [
+    "~", # regular user
+    "!", # suspended
+    "-", # banned (permanent)
+    "@",  # admin
+    "∞", # deceased
+  ]
+
   def name
     # user names are in the form "~username", so strip the first
     # char from the user's name
@@ -21,11 +30,18 @@ class Domain::Fa::Parser::UserPageHelper < Domain::Fa::Parser::Base
             unimplemented_version!
           end
 
-        elem&.
+        name = elem&.
           first&.
           text&.
-          strip&.
-          delete_prefix("~")
+          strip
+
+        if name
+          if PREFIXES.include?(name[0])
+            name[1..]
+          else
+            raise("invalid prefix for name: #{name}")
+          end
+        end
       end
   end
 

app/models/domain/fa/user.rb

@@ -72,7 +72,14 @@ class Domain::Fa::User < ReduxApplicationRecord
     if url_name && url_name =~ /[A-Z]/
       errors.add(
         :url_name,
-        "url_name #{url_name} contains uppercase chars"
+        "url_name '#{url_name}' contains uppercase"
+      )
+    end
+
+    if url_name && url_name =~ /\s/
+      errors.add(
+        :url_name,
+        "url_name '#{url_name}' contains whitespace"
       )
     end
   end
@@ -162,8 +169,6 @@ class Domain::Fa::User < ReduxApplicationRecord
     name = name.strip
     URL_NAME_EXCEPTIONS[name] || name.
       delete("_").
-      delete("!").
-      delete("∞").
       downcase
   end
 

spec/models/domain/fa/user_spec.rb

@@ -71,6 +71,13 @@ describe Domain::Fa::User do
     }).errors.full_messages).to_not be_empty
   end
 
+  it "cannot contain whitespace" do
+    expect(described_class.create({
+      name: "Foo",
+      url_name: "foo ",
+    }).errors.full_messages).to_not be_empty
+  end
+
   it "posts can be moved from one user to another" do
     user1 = SpecUtil.create_domain_fa_user(name: "Foo", url_name: "foo")
     user2 = SpecUtil.create_domain_fa_user(name: "Bar", url_name: "bar")