Distinguish perfect match from best fit

[peter-scholtens]

For a webserver where new languages are added later on during the deployment phase, I would like to detect if the user languages are a perfect/default match (q=1) or a best fit (q<1). The idea is that only with a perfect match the user information in the database will be updated/initialized.

With for example nl,en-US;q=0.7,en;q=0.3 the user would get the en-US translation first, but when the site owner finishes the nl translation later on the user would be served with that (unless deliberately chosen otherwise). To offer this, I need to detect if the first item in the vector is a perfect match (or default) language of the user or just a best fit. The function signature would than include a boolean value which is true if the first item in the array is the perfect match / default value, and otherwise false. Like below:

pub fn intersection_verify_default(raw_languages: &str, supported_languages: &[&str]) -> (bool,Vec<String>) {...}

Would you accept such a patch?

[peter-scholtens]

A patch is written, see this pull request #12, however with a boolean value for each listed String.