此来自Github的unparse存储库解决了该问题.很棒:

This unparse repository from Github solves the problem. Amazing:

q).unparse.unparse parse "update col:a*0^b+c-d from t"
"update col:(a*(0^(b+(c-d)))) from t"

q).unparse.unparse parse "a*0^b+c-d"
"(a*(0^(b+(c-d))))"