core-invoice 2.0.0

EN 16931 + Peppol PINT semantic model (VAT, GST, SST, consumption tax)
Documentation 
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use std::fmt;

/// Verbatim code. Membership is a rule (BR-CL-*), not a constructor.
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Code(String);

impl Code {
    pub fn new(value: impl Into<String>) -> Self {
        Self(value.into())
    }

    pub fn as_str(&self) -> &str {
        &self.0
    }

    pub fn is_empty(&self) -> bool {
        self.0.trim().is_empty()
    }
}

impl fmt::Display for Code {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        self.0.fmt(f)
    }
}

impl From<&str> for Code {
    fn from(value: &str) -> Self {
        Self::new(value)
    }
}