Function secret_keeper::util::form_get

pub fn form_get<'v>(
    fields: &'v Vec<(String, String)>, 
    key: &str
) -> Option<&'v str>

parse the list of key-value tuples to find the value associated with the given key. This is useful for parsing the results of serde_urlencoded::from_str.

  use secret_keeper::util::form_get;
  let fields = vec!{ ("one".to_string(),"apple".to_string()),
                     ("two".to_string(),"banana".to_string()) };
  assert_eq!(form_get(&fields, "one"), Some("apple"));
  assert_eq!(form_get(&fields, "two"), Some("banana"));
  assert_eq!(form_get(&fields, "three"), None);