Restrict parsing the date without required data.

[bwala-eightfold]

Here are some examples I am referring to
parse(10) => datetime(yearToday, monthToday, 10)
parse(10-10) => datetime(yearToday, 10, 10)
etc.

So in these examples, some parameters out of 3 (month, year or day) are missing.

I want to restrict parse to not parse the date if any one of them looks like missing

How can I achieve this?

[bwala-eightfold]

@zamanehsani Do you have any idea?