EML is a kind of a meta language to describe the UI for an EFL application.
you can find out more information here(http://eyomi.org/mediawiki/index.php/EML)
running below command will be ok if you use ubuntu.
$ sudo apt install build-essential flex bison
$ make
$ cat some_ea_file.ea | eml_parser
or you are able to parse with a dbg mode enabled parser like below
$ cat some_ea_file.ea | eml_parser_dbg