Overpass API Grammar Specification

[EmbPhy]

Does Overpass API have grammatical specifications? Now I'm trying to parse the Overpass API's query language, but that seems to be a complex and meticulous task. Since I haven't found a publicly available standard, if this is possible could you provide me with a syntax specification so I can parse it?
Thank you and your work!

[mmd-osm]

Unfortunately, there's no such thing available. You need to read the source code and derive the formal grammar specification on your own. It's really not too much work, after all.