Support empty keys by quoting them. Fixes #147

emancu · Jan 31, 2024 · 6572c45 · 6572c45
1 parent 12b0048
commit 6572c45
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/lib/toml-rb/dumper.rb b/lib/toml-rb/dumper.rb
@@ -105,7 +105,7 @@ def to_toml(obj)
     end
 
     def bare_key?(key)
-      !!key.to_s.match(/^[a-zA-Z0-9_-]*$/)
+      !!key.to_s.match(/^[a-zA-Z0-9_-]+$/)
     end
 
     # The key needs to use quotes according to TOML specs.

diff --git a/test/dumper_test.rb b/test/dumper_test.rb
@@ -139,4 +139,11 @@ def test_dump_special_chars_in_strings
 
     assert_equal %("\\t" = "escape special chars in strings") + "\n", dumped
   end
+
+  def test_dump_empty_key
+    hash = {"" => "empty key"}
+    dumped = TomlRB.dump(hash)
+
+    assert_equal %("" = "empty key") + "\n", dumped
+  end
 end