Empty table names cause parsing to fail

src/main/java/com/moandjiezana/toml/Results.java

@@ -67,6 +67,10 @@ class Results {
       errors.append("Table " + tableName + " defined twice!\n");
     }
     
+    if (tableName.endsWith(".")) {
+      errors.append("Implicit table name cannot be empty: " + tableName);
+    }
+
     while (stack.size() > 1) {
       stack.pop();
     }

src/test/java/com/moandjiezana/toml/TomlTest.java

@@ -218,6 +218,26 @@ public class TomlTest {
     new Toml().parse("[error]   if you didn't catch this, your parser is broken");
   }
   
+  @Test(expected = IllegalStateException.class)
+  public void should_fail_on_empty_table_name() {
+    new Toml().parse("[]");
+  }
+  
+  @Test(expected = IllegalStateException.class)
+  public void should_fail_on_compound_table_name_ending_with_empty_table_name() {
+    new Toml().parse("[a.]");
+  }
+  
+  @Test(expected = IllegalStateException.class)
+  public void should_fail_on_compound_table_name_containing_empty_table_name() {
+    new Toml().parse("[a..b]");
+  }
+  
+  @Test(expected = IllegalStateException.class)
+  public void should_fail_on_compound_table_name_starting_with_empty_table_name() {
+    new Toml().parse("[.b]");
+  }
+
   private File file(String file) {
     return new File(getClass().getResource(file + ".toml").getFile());
   }