diff options
author | Kai Michaelis <kai@sequoia-pgp.org> | 2019-02-26 17:22:12 +0100 |
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committer | Kai Michaelis <kai@sequoia-pgp.org> | 2019-02-26 18:13:21 +0100 |
commit | 8f71fe5d0a6dc142bdabdc9a3a25c3868e398645 (patch) | |
tree | a922c63a948af69917f19b5749120f652ae2a92a /openpgp/src/fingerprint.rs | |
parent | e07bb25de0b2291088f88dc5360f3d04f702049c (diff) |
openpgp: Add Fingerprint::to_icao
Adds a function to convert the hex fingerprint to ICAO spelling.
Diffstat (limited to 'openpgp/src/fingerprint.rs')
-rw-r--r-- | openpgp/src/fingerprint.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/openpgp/src/fingerprint.rs b/openpgp/src/fingerprint.rs index 58c0fbe2..7b494f21 100644 --- a/openpgp/src/fingerprint.rs +++ b/openpgp/src/fingerprint.rs @@ -135,4 +135,56 @@ impl Fingerprint { } } } + + /// Converts the hex representation of the fingerprint to a phrase in the + /// ICAO alphabet. + pub fn to_icao(&self) -> String { + let mut ret = String::default(); + + for ch in self.to_hex().chars() { + let word = match ch { + '0' => "Zero", + '1' => "One", + '2' => "Two", + '3' => "Three", + '4' => "Four", + '5' => "Five", + '6' => "Six", + '7' => "Seven", + '8' => "Eight", + '9' => "Niner", + 'A' => "Alpha", + 'B' => "Bravo", + 'C' => "Charlie", + 'D' => "Delta", + 'E' => "Echo", + 'F' => "Foxtrot", + _ => { continue; } + }; + + if !ret.is_empty() { + ret.push_str(" "); + } + ret.push_str(word); + } + + ret + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn icao() { + let fpr = Fingerprint::from_hex( + "0123 4567 89AB CDEF 0123 4567 89AB CDEF 0123 4567").unwrap(); + let expected = "\ +Zero One Two Three Four Five Six Seven Eight Niner Alpha Bravo Charlie Delta \ +Echo Foxtrot Zero One Two Three Four Five Six Seven Eight Niner Alpha Bravo \ +Charlie Delta Echo Foxtrot Zero One Two Three Four Five Six Seven"; + + assert_eq!(fpr.to_icao(), expected); + } } |