···493493Code blocks may have arbitrary metadata associated with them. This metadata is
494494used, for example, for selecting code blocks when extracting them from a source file via the
495495[odoc extract-code] command. The metadata may also be used by other tools that
496496-operate on code blocks, for example, {{!https://github.com/realworldocaml/mdx}mdx}.
496496+operate on code blocks, for example, {{:https://github.com/realworldocaml/mdx}mdx}.
497497498498The metadata follows immediately after the language header, and is a list of tags and bindings, separated by whitespace. Tags are simple
499499keywords, and bindings are key-value pairs separated by an equals sign. If whitespace