/// A number of constants to give a name to all characters in this block.
mod constants {
    /// \u{2150}: '⅐'
    pub const VULGAR_FRACTION_ONE_SEVENTH: char = '⅐';
    /// \u{2151}: '⅑'
    pub const VULGAR_FRACTION_ONE_NINTH: char = '⅑';
    /// \u{2152}: '⅒'
    pub const VULGAR_FRACTION_ONE_TENTH: char = '⅒';
    /// \u{2153}: '⅓'
    pub const VULGAR_FRACTION_ONE_THIRD: char = '⅓';
    /// \u{2154}: '⅔'
    pub const VULGAR_FRACTION_TWO_THIRDS: char = '⅔';
    /// \u{2155}: '⅕'
    pub const VULGAR_FRACTION_ONE_FIFTH: char = '⅕';
    /// \u{2156}: '⅖'
    pub const VULGAR_FRACTION_TWO_FIFTHS: char = '⅖';
    /// \u{2157}: '⅗'
    pub const VULGAR_FRACTION_THREE_FIFTHS: char = '⅗';
    /// \u{2158}: '⅘'
    pub const VULGAR_FRACTION_FOUR_FIFTHS: char = '⅘';
    /// \u{2159}: '⅙'
    pub const VULGAR_FRACTION_ONE_SIXTH: char = '⅙';
    /// \u{215a}: '⅚'
    pub const VULGAR_FRACTION_FIVE_SIXTHS: char = '⅚';
    /// \u{215b}: '⅛'
    pub const VULGAR_FRACTION_ONE_EIGHTH: char = '⅛';
    /// \u{215c}: '⅜'
    pub const VULGAR_FRACTION_THREE_EIGHTHS: char = '⅜';
    /// \u{215d}: '⅝'
    pub const VULGAR_FRACTION_FIVE_EIGHTHS: char = '⅝';
    /// \u{215e}: '⅞'
    pub const VULGAR_FRACTION_SEVEN_EIGHTHS: char = '⅞';
    /// \u{215f}: '⅟'
    pub const FRACTION_NUMERATOR_ONE: char = '⅟';
    /// \u{2160}: 'Ⅰ'
    pub const ROMAN_NUMERAL_ONE: char = 'Ⅰ';
    /// \u{2161}: 'Ⅱ'
    pub const ROMAN_NUMERAL_TWO: char = 'Ⅱ';
    /// \u{2162}: 'Ⅲ'
    pub const ROMAN_NUMERAL_THREE: char = 'Ⅲ';
    /// \u{2163}: 'Ⅳ'
    pub const ROMAN_NUMERAL_FOUR: char = 'Ⅳ';
    /// \u{2164}: 'Ⅴ'
    pub const ROMAN_NUMERAL_FIVE: char = 'Ⅴ';
    /// \u{2165}: 'Ⅵ'
    pub const ROMAN_NUMERAL_SIX: char = 'Ⅵ';
    /// \u{2166}: 'Ⅶ'
    pub const ROMAN_NUMERAL_SEVEN: char = 'Ⅶ';
    /// \u{2167}: 'Ⅷ'
    pub const ROMAN_NUMERAL_EIGHT: char = 'Ⅷ';
    /// \u{2168}: 'Ⅸ'
    pub const ROMAN_NUMERAL_NINE: char = 'Ⅸ';
    /// \u{2169}: 'Ⅹ'
    pub const ROMAN_NUMERAL_TEN: char = 'Ⅹ';
    /// \u{216a}: 'Ⅺ'
    pub const ROMAN_NUMERAL_ELEVEN: char = 'Ⅺ';
    /// \u{216b}: 'Ⅻ'
    pub const ROMAN_NUMERAL_TWELVE: char = 'Ⅻ';
    /// \u{216c}: 'Ⅼ'
    pub const ROMAN_NUMERAL_FIFTY: char = 'Ⅼ';
    /// \u{216d}: 'Ⅽ'
    pub const ROMAN_NUMERAL_ONE_HUNDRED: char = 'Ⅽ';
    /// \u{216e}: 'Ⅾ'
    pub const ROMAN_NUMERAL_FIVE_HUNDRED: char = 'Ⅾ';
    /// \u{216f}: 'Ⅿ'
    pub const ROMAN_NUMERAL_ONE_THOUSAND: char = 'Ⅿ';
    /// \u{2170}: 'ⅰ'
    pub const SMALL_ROMAN_NUMERAL_ONE: char = 'ⅰ';
    /// \u{2171}: 'ⅱ'
    pub const SMALL_ROMAN_NUMERAL_TWO: char = 'ⅱ';
    /// \u{2172}: 'ⅲ'
    pub const SMALL_ROMAN_NUMERAL_THREE: char = 'ⅲ';
    /// \u{2173}: 'ⅳ'
    pub const SMALL_ROMAN_NUMERAL_FOUR: char = 'ⅳ';
    /// \u{2174}: 'ⅴ'
    pub const SMALL_ROMAN_NUMERAL_FIVE: char = 'ⅴ';
    /// \u{2175}: 'ⅵ'
    pub const SMALL_ROMAN_NUMERAL_SIX: char = 'ⅵ';
    /// \u{2176}: 'ⅶ'
    pub const SMALL_ROMAN_NUMERAL_SEVEN: char = 'ⅶ';
    /// \u{2177}: 'ⅷ'
    pub const SMALL_ROMAN_NUMERAL_EIGHT: char = 'ⅷ';
    /// \u{2178}: 'ⅸ'
    pub const SMALL_ROMAN_NUMERAL_NINE: char = 'ⅸ';
    /// \u{2179}: 'ⅹ'
    pub const SMALL_ROMAN_NUMERAL_TEN: char = 'ⅹ';
    /// \u{217a}: 'ⅺ'
    pub const SMALL_ROMAN_NUMERAL_ELEVEN: char = 'ⅺ';
    /// \u{217b}: 'ⅻ'
    pub const SMALL_ROMAN_NUMERAL_TWELVE: char = 'ⅻ';
    /// \u{217c}: 'ⅼ'
    pub const SMALL_ROMAN_NUMERAL_FIFTY: char = 'ⅼ';
    /// \u{217d}: 'ⅽ'
    pub const SMALL_ROMAN_NUMERAL_ONE_HUNDRED: char = 'ⅽ';
    /// \u{217e}: 'ⅾ'
    pub const SMALL_ROMAN_NUMERAL_FIVE_HUNDRED: char = 'ⅾ';
    /// \u{217f}: 'ⅿ'
    pub const SMALL_ROMAN_NUMERAL_ONE_THOUSAND: char = 'ⅿ';
    /// \u{2180}: 'ↀ'
    pub const ROMAN_NUMERAL_ONE_THOUSAND_C_D: char = 'ↀ';
    /// \u{2181}: 'ↁ'
    pub const ROMAN_NUMERAL_FIVE_THOUSAND: char = 'ↁ';
    /// \u{2182}: 'ↂ'
    pub const ROMAN_NUMERAL_TEN_THOUSAND: char = 'ↂ';
    /// \u{2183}: 'Ↄ'
    pub const ROMAN_NUMERAL_REVERSED_ONE_HUNDRED: char = 'Ↄ';
    /// \u{2184}: 'ↄ'
    pub const LATIN_SMALL_LETTER_REVERSED_C: char = 'ↄ';
    /// \u{2185}: 'ↅ'
    pub const ROMAN_NUMERAL_SIX_LATE_FORM: char = 'ↅ';
    /// \u{2186}: 'ↆ'
    pub const ROMAN_NUMERAL_FIFTY_EARLY_FORM: char = 'ↆ';
    /// \u{2187}: 'ↇ'
    pub const ROMAN_NUMERAL_FIFTY_THOUSAND: char = 'ↇ';
    /// \u{2188}: 'ↈ'
    pub const ROMAN_NUMERAL_ONE_HUNDRED_THOUSAND: char = 'ↈ';
    /// \u{2189}: '↉'
    pub const VULGAR_FRACTION_ZERO_THIRDS: char = '↉';
    /// \u{218a}: '↊'
    pub const TURNED_DIGIT_TWO: char = '↊';
    /// \u{218b}: '↋'
    pub const TURNED_DIGIT_THREE: char = '↋';
}

/// An enum to represent all characters in the NumberForms block.
#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
pub enum NumberForms {
    /// \u{2150}: '⅐'
    VulgarFractionOneSeventh,
    /// \u{2151}: '⅑'
    VulgarFractionOneNinth,
    /// \u{2152}: '⅒'
    VulgarFractionOneTenth,
    /// \u{2153}: '⅓'
    VulgarFractionOneThird,
    /// \u{2154}: '⅔'
    VulgarFractionTwoThirds,
    /// \u{2155}: '⅕'
    VulgarFractionOneFifth,
    /// \u{2156}: '⅖'
    VulgarFractionTwoFifths,
    /// \u{2157}: '⅗'
    VulgarFractionThreeFifths,
    /// \u{2158}: '⅘'
    VulgarFractionFourFifths,
    /// \u{2159}: '⅙'
    VulgarFractionOneSixth,
    /// \u{215a}: '⅚'
    VulgarFractionFiveSixths,
    /// \u{215b}: '⅛'
    VulgarFractionOneEighth,
    /// \u{215c}: '⅜'
    VulgarFractionThreeEighths,
    /// \u{215d}: '⅝'
    VulgarFractionFiveEighths,
    /// \u{215e}: '⅞'
    VulgarFractionSevenEighths,
    /// \u{215f}: '⅟'
    FractionNumeratorOne,
    /// \u{2160}: 'Ⅰ'
    RomanNumeralOne,
    /// \u{2161}: 'Ⅱ'
    RomanNumeralTwo,
    /// \u{2162}: 'Ⅲ'
    RomanNumeralThree,
    /// \u{2163}: 'Ⅳ'
    RomanNumeralFour,
    /// \u{2164}: 'Ⅴ'
    RomanNumeralFive,
    /// \u{2165}: 'Ⅵ'
    RomanNumeralSix,
    /// \u{2166}: 'Ⅶ'
    RomanNumeralSeven,
    /// \u{2167}: 'Ⅷ'
    RomanNumeralEight,
    /// \u{2168}: 'Ⅸ'
    RomanNumeralNine,
    /// \u{2169}: 'Ⅹ'
    RomanNumeralTen,
    /// \u{216a}: 'Ⅺ'
    RomanNumeralEleven,
    /// \u{216b}: 'Ⅻ'
    RomanNumeralTwelve,
    /// \u{216c}: 'Ⅼ'
    RomanNumeralFifty,
    /// \u{216d}: 'Ⅽ'
    RomanNumeralOneHundred,
    /// \u{216e}: 'Ⅾ'
    RomanNumeralFiveHundred,
    /// \u{216f}: 'Ⅿ'
    RomanNumeralOneThousand,
    /// \u{2170}: 'ⅰ'
    SmallRomanNumeralOne,
    /// \u{2171}: 'ⅱ'
    SmallRomanNumeralTwo,
    /// \u{2172}: 'ⅲ'
    SmallRomanNumeralThree,
    /// \u{2173}: 'ⅳ'
    SmallRomanNumeralFour,
    /// \u{2174}: 'ⅴ'
    SmallRomanNumeralFive,
    /// \u{2175}: 'ⅵ'
    SmallRomanNumeralSix,
    /// \u{2176}: 'ⅶ'
    SmallRomanNumeralSeven,
    /// \u{2177}: 'ⅷ'
    SmallRomanNumeralEight,
    /// \u{2178}: 'ⅸ'
    SmallRomanNumeralNine,
    /// \u{2179}: 'ⅹ'
    SmallRomanNumeralTen,
    /// \u{217a}: 'ⅺ'
    SmallRomanNumeralEleven,
    /// \u{217b}: 'ⅻ'
    SmallRomanNumeralTwelve,
    /// \u{217c}: 'ⅼ'
    SmallRomanNumeralFifty,
    /// \u{217d}: 'ⅽ'
    SmallRomanNumeralOneHundred,
    /// \u{217e}: 'ⅾ'
    SmallRomanNumeralFiveHundred,
    /// \u{217f}: 'ⅿ'
    SmallRomanNumeralOneThousand,
    /// \u{2180}: 'ↀ'
    RomanNumeralOneThousandCD,
    /// \u{2181}: 'ↁ'
    RomanNumeralFiveThousand,
    /// \u{2182}: 'ↂ'
    RomanNumeralTenThousand,
    /// \u{2183}: 'Ↄ'
    RomanNumeralReversedOneHundred,
    /// \u{2184}: 'ↄ'
    LatinSmallLetterReversedC,
    /// \u{2185}: 'ↅ'
    RomanNumeralSixLateForm,
    /// \u{2186}: 'ↆ'
    RomanNumeralFiftyEarlyForm,
    /// \u{2187}: 'ↇ'
    RomanNumeralFiftyThousand,
    /// \u{2188}: 'ↈ'
    RomanNumeralOneHundredThousand,
    /// \u{2189}: '↉'
    VulgarFractionZeroThirds,
    /// \u{218a}: '↊'
    TurnedDigitTwo,
    /// \u{218b}: '↋'
    TurnedDigitThree,
}

impl Into<char> for NumberForms {
    fn into(self) -> char {
        use constants::*;
        match self {
            NumberForms::VulgarFractionOneSeventh => VULGAR_FRACTION_ONE_SEVENTH,
            NumberForms::VulgarFractionOneNinth => VULGAR_FRACTION_ONE_NINTH,
            NumberForms::VulgarFractionOneTenth => VULGAR_FRACTION_ONE_TENTH,
            NumberForms::VulgarFractionOneThird => VULGAR_FRACTION_ONE_THIRD,
            NumberForms::VulgarFractionTwoThirds => VULGAR_FRACTION_TWO_THIRDS,
            NumberForms::VulgarFractionOneFifth => VULGAR_FRACTION_ONE_FIFTH,
            NumberForms::VulgarFractionTwoFifths => VULGAR_FRACTION_TWO_FIFTHS,
            NumberForms::VulgarFractionThreeFifths => VULGAR_FRACTION_THREE_FIFTHS,
            NumberForms::VulgarFractionFourFifths => VULGAR_FRACTION_FOUR_FIFTHS,
            NumberForms::VulgarFractionOneSixth => VULGAR_FRACTION_ONE_SIXTH,
            NumberForms::VulgarFractionFiveSixths => VULGAR_FRACTION_FIVE_SIXTHS,
            NumberForms::VulgarFractionOneEighth => VULGAR_FRACTION_ONE_EIGHTH,
            NumberForms::VulgarFractionThreeEighths => VULGAR_FRACTION_THREE_EIGHTHS,
            NumberForms::VulgarFractionFiveEighths => VULGAR_FRACTION_FIVE_EIGHTHS,
            NumberForms::VulgarFractionSevenEighths => VULGAR_FRACTION_SEVEN_EIGHTHS,
            NumberForms::FractionNumeratorOne => FRACTION_NUMERATOR_ONE,
            NumberForms::RomanNumeralOne => ROMAN_NUMERAL_ONE,
            NumberForms::RomanNumeralTwo => ROMAN_NUMERAL_TWO,
            NumberForms::RomanNumeralThree => ROMAN_NUMERAL_THREE,
            NumberForms::RomanNumeralFour => ROMAN_NUMERAL_FOUR,
            NumberForms::RomanNumeralFive => ROMAN_NUMERAL_FIVE,
            NumberForms::RomanNumeralSix => ROMAN_NUMERAL_SIX,
            NumberForms::RomanNumeralSeven => ROMAN_NUMERAL_SEVEN,
            NumberForms::RomanNumeralEight => ROMAN_NUMERAL_EIGHT,
            NumberForms::RomanNumeralNine => ROMAN_NUMERAL_NINE,
            NumberForms::RomanNumeralTen => ROMAN_NUMERAL_TEN,
            NumberForms::RomanNumeralEleven => ROMAN_NUMERAL_ELEVEN,
            NumberForms::RomanNumeralTwelve => ROMAN_NUMERAL_TWELVE,
            NumberForms::RomanNumeralFifty => ROMAN_NUMERAL_FIFTY,
            NumberForms::RomanNumeralOneHundred => ROMAN_NUMERAL_ONE_HUNDRED,
            NumberForms::RomanNumeralFiveHundred => ROMAN_NUMERAL_FIVE_HUNDRED,
            NumberForms::RomanNumeralOneThousand => ROMAN_NUMERAL_ONE_THOUSAND,
            NumberForms::SmallRomanNumeralOne => SMALL_ROMAN_NUMERAL_ONE,
            NumberForms::SmallRomanNumeralTwo => SMALL_ROMAN_NUMERAL_TWO,
            NumberForms::SmallRomanNumeralThree => SMALL_ROMAN_NUMERAL_THREE,
            NumberForms::SmallRomanNumeralFour => SMALL_ROMAN_NUMERAL_FOUR,
            NumberForms::SmallRomanNumeralFive => SMALL_ROMAN_NUMERAL_FIVE,
            NumberForms::SmallRomanNumeralSix => SMALL_ROMAN_NUMERAL_SIX,
            NumberForms::SmallRomanNumeralSeven => SMALL_ROMAN_NUMERAL_SEVEN,
            NumberForms::SmallRomanNumeralEight => SMALL_ROMAN_NUMERAL_EIGHT,
            NumberForms::SmallRomanNumeralNine => SMALL_ROMAN_NUMERAL_NINE,
            NumberForms::SmallRomanNumeralTen => SMALL_ROMAN_NUMERAL_TEN,
            NumberForms::SmallRomanNumeralEleven => SMALL_ROMAN_NUMERAL_ELEVEN,
            NumberForms::SmallRomanNumeralTwelve => SMALL_ROMAN_NUMERAL_TWELVE,
            NumberForms::SmallRomanNumeralFifty => SMALL_ROMAN_NUMERAL_FIFTY,
            NumberForms::SmallRomanNumeralOneHundred => SMALL_ROMAN_NUMERAL_ONE_HUNDRED,
            NumberForms::SmallRomanNumeralFiveHundred => SMALL_ROMAN_NUMERAL_FIVE_HUNDRED,
            NumberForms::SmallRomanNumeralOneThousand => SMALL_ROMAN_NUMERAL_ONE_THOUSAND,
            NumberForms::RomanNumeralOneThousandCD => ROMAN_NUMERAL_ONE_THOUSAND_C_D,
            NumberForms::RomanNumeralFiveThousand => ROMAN_NUMERAL_FIVE_THOUSAND,
            NumberForms::RomanNumeralTenThousand => ROMAN_NUMERAL_TEN_THOUSAND,
            NumberForms::RomanNumeralReversedOneHundred => ROMAN_NUMERAL_REVERSED_ONE_HUNDRED,
            NumberForms::LatinSmallLetterReversedC => LATIN_SMALL_LETTER_REVERSED_C,
            NumberForms::RomanNumeralSixLateForm => ROMAN_NUMERAL_SIX_LATE_FORM,
            NumberForms::RomanNumeralFiftyEarlyForm => ROMAN_NUMERAL_FIFTY_EARLY_FORM,
            NumberForms::RomanNumeralFiftyThousand => ROMAN_NUMERAL_FIFTY_THOUSAND,
            NumberForms::RomanNumeralOneHundredThousand => ROMAN_NUMERAL_ONE_HUNDRED_THOUSAND,
            NumberForms::VulgarFractionZeroThirds => VULGAR_FRACTION_ZERO_THIRDS,
            NumberForms::TurnedDigitTwo => TURNED_DIGIT_TWO,
            NumberForms::TurnedDigitThree => TURNED_DIGIT_THREE,
        }
    }
}

impl std::convert::TryFrom<char> for NumberForms {
    type Error = ();
    fn try_from(c: char) -> Result<Self, Self::Error> {
        use constants::*;
        match c {
            VULGAR_FRACTION_ONE_SEVENTH => Ok(NumberForms::VulgarFractionOneSeventh),
            VULGAR_FRACTION_ONE_NINTH => Ok(NumberForms::VulgarFractionOneNinth),
            VULGAR_FRACTION_ONE_TENTH => Ok(NumberForms::VulgarFractionOneTenth),
            VULGAR_FRACTION_ONE_THIRD => Ok(NumberForms::VulgarFractionOneThird),
            VULGAR_FRACTION_TWO_THIRDS => Ok(NumberForms::VulgarFractionTwoThirds),
            VULGAR_FRACTION_ONE_FIFTH => Ok(NumberForms::VulgarFractionOneFifth),
            VULGAR_FRACTION_TWO_FIFTHS => Ok(NumberForms::VulgarFractionTwoFifths),
            VULGAR_FRACTION_THREE_FIFTHS => Ok(NumberForms::VulgarFractionThreeFifths),
            VULGAR_FRACTION_FOUR_FIFTHS => Ok(NumberForms::VulgarFractionFourFifths),
            VULGAR_FRACTION_ONE_SIXTH => Ok(NumberForms::VulgarFractionOneSixth),
            VULGAR_FRACTION_FIVE_SIXTHS => Ok(NumberForms::VulgarFractionFiveSixths),
            VULGAR_FRACTION_ONE_EIGHTH => Ok(NumberForms::VulgarFractionOneEighth),
            VULGAR_FRACTION_THREE_EIGHTHS => Ok(NumberForms::VulgarFractionThreeEighths),
            VULGAR_FRACTION_FIVE_EIGHTHS => Ok(NumberForms::VulgarFractionFiveEighths),
            VULGAR_FRACTION_SEVEN_EIGHTHS => Ok(NumberForms::VulgarFractionSevenEighths),
            FRACTION_NUMERATOR_ONE => Ok(NumberForms::FractionNumeratorOne),
            ROMAN_NUMERAL_ONE => Ok(NumberForms::RomanNumeralOne),
            ROMAN_NUMERAL_TWO => Ok(NumberForms::RomanNumeralTwo),
            ROMAN_NUMERAL_THREE => Ok(NumberForms::RomanNumeralThree),
            ROMAN_NUMERAL_FOUR => Ok(NumberForms::RomanNumeralFour),
            ROMAN_NUMERAL_FIVE => Ok(NumberForms::RomanNumeralFive),
            ROMAN_NUMERAL_SIX => Ok(NumberForms::RomanNumeralSix),
            ROMAN_NUMERAL_SEVEN => Ok(NumberForms::RomanNumeralSeven),
            ROMAN_NUMERAL_EIGHT => Ok(NumberForms::RomanNumeralEight),
            ROMAN_NUMERAL_NINE => Ok(NumberForms::RomanNumeralNine),
            ROMAN_NUMERAL_TEN => Ok(NumberForms::RomanNumeralTen),
            ROMAN_NUMERAL_ELEVEN => Ok(NumberForms::RomanNumeralEleven),
            ROMAN_NUMERAL_TWELVE => Ok(NumberForms::RomanNumeralTwelve),
            ROMAN_NUMERAL_FIFTY => Ok(NumberForms::RomanNumeralFifty),
            ROMAN_NUMERAL_ONE_HUNDRED => Ok(NumberForms::RomanNumeralOneHundred),
            ROMAN_NUMERAL_FIVE_HUNDRED => Ok(NumberForms::RomanNumeralFiveHundred),
            ROMAN_NUMERAL_ONE_THOUSAND => Ok(NumberForms::RomanNumeralOneThousand),
            SMALL_ROMAN_NUMERAL_ONE => Ok(NumberForms::SmallRomanNumeralOne),
            SMALL_ROMAN_NUMERAL_TWO => Ok(NumberForms::SmallRomanNumeralTwo),
            SMALL_ROMAN_NUMERAL_THREE => Ok(NumberForms::SmallRomanNumeralThree),
            SMALL_ROMAN_NUMERAL_FOUR => Ok(NumberForms::SmallRomanNumeralFour),
            SMALL_ROMAN_NUMERAL_FIVE => Ok(NumberForms::SmallRomanNumeralFive),
            SMALL_ROMAN_NUMERAL_SIX => Ok(NumberForms::SmallRomanNumeralSix),
            SMALL_ROMAN_NUMERAL_SEVEN => Ok(NumberForms::SmallRomanNumeralSeven),
            SMALL_ROMAN_NUMERAL_EIGHT => Ok(NumberForms::SmallRomanNumeralEight),
            SMALL_ROMAN_NUMERAL_NINE => Ok(NumberForms::SmallRomanNumeralNine),
            SMALL_ROMAN_NUMERAL_TEN => Ok(NumberForms::SmallRomanNumeralTen),
            SMALL_ROMAN_NUMERAL_ELEVEN => Ok(NumberForms::SmallRomanNumeralEleven),
            SMALL_ROMAN_NUMERAL_TWELVE => Ok(NumberForms::SmallRomanNumeralTwelve),
            SMALL_ROMAN_NUMERAL_FIFTY => Ok(NumberForms::SmallRomanNumeralFifty),
            SMALL_ROMAN_NUMERAL_ONE_HUNDRED => Ok(NumberForms::SmallRomanNumeralOneHundred),
            SMALL_ROMAN_NUMERAL_FIVE_HUNDRED => Ok(NumberForms::SmallRomanNumeralFiveHundred),
            SMALL_ROMAN_NUMERAL_ONE_THOUSAND => Ok(NumberForms::SmallRomanNumeralOneThousand),
            ROMAN_NUMERAL_ONE_THOUSAND_C_D => Ok(NumberForms::RomanNumeralOneThousandCD),
            ROMAN_NUMERAL_FIVE_THOUSAND => Ok(NumberForms::RomanNumeralFiveThousand),
            ROMAN_NUMERAL_TEN_THOUSAND => Ok(NumberForms::RomanNumeralTenThousand),
            ROMAN_NUMERAL_REVERSED_ONE_HUNDRED => Ok(NumberForms::RomanNumeralReversedOneHundred),
            LATIN_SMALL_LETTER_REVERSED_C => Ok(NumberForms::LatinSmallLetterReversedC),
            ROMAN_NUMERAL_SIX_LATE_FORM => Ok(NumberForms::RomanNumeralSixLateForm),
            ROMAN_NUMERAL_FIFTY_EARLY_FORM => Ok(NumberForms::RomanNumeralFiftyEarlyForm),
            ROMAN_NUMERAL_FIFTY_THOUSAND => Ok(NumberForms::RomanNumeralFiftyThousand),
            ROMAN_NUMERAL_ONE_HUNDRED_THOUSAND => Ok(NumberForms::RomanNumeralOneHundredThousand),
            VULGAR_FRACTION_ZERO_THIRDS => Ok(NumberForms::VulgarFractionZeroThirds),
            TURNED_DIGIT_TWO => Ok(NumberForms::TurnedDigitTwo),
            TURNED_DIGIT_THREE => Ok(NumberForms::TurnedDigitThree),
            _ => Err(()),
        }
    }
}

impl Into<u32> for NumberForms {
    fn into(self) -> u32 {
        let c: char = self.into();
        let hex = c
            .escape_unicode()
            .to_string()
            .replace("\\u{", "")
            .replace("}", "");
        u32::from_str_radix(&hex, 16).unwrap()
    }
}

impl std::convert::TryFrom<u32> for NumberForms {
    type Error = ();
    fn try_from(u: u32) -> Result<Self, Self::Error> {
        if let Ok(c) = char::try_from(u) {
            Self::try_from(c)
        } else {
            Err(())
        }
    }
}

impl Iterator for NumberForms {
    type Item = Self;
    fn next(&mut self) -> Option<Self> {
        let index: u32 = (*self).into();
        use std::convert::TryFrom;
        Self::try_from(index + 1).ok()
    }
}

impl NumberForms {
    /// The character with the lowest index in this unicode block
    pub fn new() -> Self {
        NumberForms::VulgarFractionOneSeventh
    }

    /// The character's name, all lowercase and space-separated
    pub fn name(&self) -> &str {
        match self {
            NumberForms::VulgarFractionOneSeventh => "vulgar fraction one seventh",
            NumberForms::VulgarFractionOneNinth => "vulgar fraction one ninth",
            NumberForms::VulgarFractionOneTenth => "vulgar fraction one tenth",
            NumberForms::VulgarFractionOneThird => "vulgar fraction one third",
            NumberForms::VulgarFractionTwoThirds => "vulgar fraction two thirds",
            NumberForms::VulgarFractionOneFifth => "vulgar fraction one fifth",
            NumberForms::VulgarFractionTwoFifths => "vulgar fraction two fifths",
            NumberForms::VulgarFractionThreeFifths => "vulgar fraction three fifths",
            NumberForms::VulgarFractionFourFifths => "vulgar fraction four fifths",
            NumberForms::VulgarFractionOneSixth => "vulgar fraction one sixth",
            NumberForms::VulgarFractionFiveSixths => "vulgar fraction five sixths",
            NumberForms::VulgarFractionOneEighth => "vulgar fraction one eighth",
            NumberForms::VulgarFractionThreeEighths => "vulgar fraction three eighths",
            NumberForms::VulgarFractionFiveEighths => "vulgar fraction five eighths",
            NumberForms::VulgarFractionSevenEighths => "vulgar fraction seven eighths",
            NumberForms::FractionNumeratorOne => "fraction numerator one",
            NumberForms::RomanNumeralOne => "roman numeral one",
            NumberForms::RomanNumeralTwo => "roman numeral two",
            NumberForms::RomanNumeralThree => "roman numeral three",
            NumberForms::RomanNumeralFour => "roman numeral four",
            NumberForms::RomanNumeralFive => "roman numeral five",
            NumberForms::RomanNumeralSix => "roman numeral six",
            NumberForms::RomanNumeralSeven => "roman numeral seven",
            NumberForms::RomanNumeralEight => "roman numeral eight",
            NumberForms::RomanNumeralNine => "roman numeral nine",
            NumberForms::RomanNumeralTen => "roman numeral ten",
            NumberForms::RomanNumeralEleven => "roman numeral eleven",
            NumberForms::RomanNumeralTwelve => "roman numeral twelve",
            NumberForms::RomanNumeralFifty => "roman numeral fifty",
            NumberForms::RomanNumeralOneHundred => "roman numeral one hundred",
            NumberForms::RomanNumeralFiveHundred => "roman numeral five hundred",
            NumberForms::RomanNumeralOneThousand => "roman numeral one thousand",
            NumberForms::SmallRomanNumeralOne => "small roman numeral one",
            NumberForms::SmallRomanNumeralTwo => "small roman numeral two",
            NumberForms::SmallRomanNumeralThree => "small roman numeral three",
            NumberForms::SmallRomanNumeralFour => "small roman numeral four",
            NumberForms::SmallRomanNumeralFive => "small roman numeral five",
            NumberForms::SmallRomanNumeralSix => "small roman numeral six",
            NumberForms::SmallRomanNumeralSeven => "small roman numeral seven",
            NumberForms::SmallRomanNumeralEight => "small roman numeral eight",
            NumberForms::SmallRomanNumeralNine => "small roman numeral nine",
            NumberForms::SmallRomanNumeralTen => "small roman numeral ten",
            NumberForms::SmallRomanNumeralEleven => "small roman numeral eleven",
            NumberForms::SmallRomanNumeralTwelve => "small roman numeral twelve",
            NumberForms::SmallRomanNumeralFifty => "small roman numeral fifty",
            NumberForms::SmallRomanNumeralOneHundred => "small roman numeral one hundred",
            NumberForms::SmallRomanNumeralFiveHundred => "small roman numeral five hundred",
            NumberForms::SmallRomanNumeralOneThousand => "small roman numeral one thousand",
            NumberForms::RomanNumeralOneThousandCD => "roman numeral one thousand c d",
            NumberForms::RomanNumeralFiveThousand => "roman numeral five thousand",
            NumberForms::RomanNumeralTenThousand => "roman numeral ten thousand",
            NumberForms::RomanNumeralReversedOneHundred => "roman numeral reversed one hundred",
            NumberForms::LatinSmallLetterReversedC => "latin small letter reversed c",
            NumberForms::RomanNumeralSixLateForm => "roman numeral six late form",
            NumberForms::RomanNumeralFiftyEarlyForm => "roman numeral fifty early form",
            NumberForms::RomanNumeralFiftyThousand => "roman numeral fifty thousand",
            NumberForms::RomanNumeralOneHundredThousand => "roman numeral one hundred thousand",
            NumberForms::VulgarFractionZeroThirds => "vulgar fraction zero thirds",
            NumberForms::TurnedDigitTwo => "turned digit two",
            NumberForms::TurnedDigitThree => "turned digit three",
        }
    }
}