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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| const SYMBOLS: &str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZàèìòùÀÈÌÒÙáéíóúÁÉÍÓÚâêîôûÂÊÔÛÎäëïöüÄËÏ"; | ||
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| pub fn encode(day:u32, month:u32, year:i32, steps:bool) -> String { | ||
| let symbols: Vec<char> = SYMBOLS.chars().collect(); | ||
| let symbols_count = SYMBOLS.len(); | ||
| let enc_day = symbols[(day % symbols_count as u32) as usize]; | ||
| let enc_month = symbols[(month % symbols_count as u32) as usize]; | ||
| let enc_year: String; | ||
| if year > 100 { | ||
| let long_year: i32 = year; | ||
| let century: i32 = long_year / 100; | ||
| let short_year: i32 = long_year % 100; | ||
| let enc_century = symbols[(century % symbols_count as i32) as usize]; | ||
| let enc_short_year = symbols[(short_year % symbols_count as i32) as usize]; | ||
| enc_year = format!("{}{}", enc_century, enc_short_year); | ||
| } else { | ||
| enc_year = symbols[(year % symbols_count as i32) as usize].to_string(); | ||
| } | ||
| let dmy = format!("{}{}{}", enc_day, enc_month, enc_year); | ||
| let dmy_with_steps = format!("{}-{}-{} -> {}.{}.{} -> {}.{}.{} -> {}", day, month, year, day, month, year, enc_day, enc_month, enc_year, dmy); | ||
| return if steps { dmy_with_steps } else { dmy }; | ||
| } | ||
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| pub fn decode(encoded_date:String, steps: bool) -> String { | ||
| let enc_date_sym: Vec<char> = encoded_date.chars().collect(); | ||
| let enc_day = enc_date_sym[0]; | ||
| let enc_month = enc_date_sym[1]; | ||
| let enc_year = &encoded_date[2..encoded_date.len()]; | ||
| let dec_day = SYMBOLS.find(enc_day).unwrap(); | ||
| let dec_month = SYMBOLS.find(enc_month).unwrap(); | ||
| let enc_date_len = enc_date_sym.len(); | ||
| let mut dec_year = SYMBOLS.find(enc_date_sym[enc_date_len-1]).unwrap(); | ||
| if enc_date_len > 3 { | ||
| let dec_century = SYMBOLS.find(enc_date_sym[enc_date_len-2]).unwrap(); | ||
| dec_year = ((dec_century as i32 * 100) + dec_year as i32) as usize; | ||
| } | ||
| let dmy = format!("{}-{}-{}", dec_day, dec_month, dec_year); | ||
| let dmy_with_steps = format!("{} -> {}.{}.{} -> {}.{}.{} -> {}", encoded_date, enc_day, enc_month, enc_year, dec_day, dec_month, dec_year, dmy); | ||
| return if steps { dmy_with_steps } else { dmy }; | ||
| } | ||
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| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; | ||
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| #[test] | ||
| fn encode_works() { | ||
| assert_eq!(encode(31, 12, 2035, false), "vckz"); | ||
| assert_eq!(encode(31, 12, 35, false), "vcz"); | ||
| } | ||
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| #[test] | ||
| fn decode_works() { | ||
| assert_eq!(decode("vckz".to_string(), false), "31-12-2035"); | ||
| assert_eq!(decode("vcz".to_string(), false), "31-12-35"); | ||
| } | ||
| } |
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