No semicolons in names

app/models/profile.rb

@@ -23,6 +23,8 @@ class Profile < ActiveRecord::Base
 
   validates_length_of :first_name, :maximum => 32
   validates_length_of :last_name,  :maximum => 32
+  validates_format_of :first_name, :with => /\A[^;]+\z/
+  validates_format_of :last_name, :with => /\A[^;]+\z/
 
   attr_accessible :first_name, :last_name, :image_url, :image_url_medium,
     :image_url_small, :birthday, :gender, :bio, :searchable, :date

spec/models/profile_spec.rb

@@ -22,6 +22,10 @@ describe Profile do
         profile = Factory.build(:profile, :first_name => "Hexagooooooooooooooooooooooooooon")
         profile.should_not be_valid
       end
+      it 'cannot have ;' do
+        profile = Factory.build(:profile, :first_name => "Hex;agon")
+        profile.should_not be_valid
+      end
     end
     describe "of last_name" do
       it "strips leading and trailing whitespace" do
@@ -39,6 +43,15 @@ describe Profile do
         profile = Factory.build(:profile, :last_name => "Hexagooooooooooooooooooooooooooon")
         profile.should_not be_valid
       end
+
+      it 'cannot have ;' do
+        profile = Factory.build(:profile, :last_name => "Hex;agon")
+        profile.should_not be_valid
+      end
+      it 'disallows ; with a newline in the string' do
+        profile = Factory.build(:profile, :last_name => "H\nex;agon")
+        profile.should_not be_valid
+      end
     end
   end