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#[derive(Debug, PartialEq)]
pub struct Dna(String);
#[derive(Debug, PartialEq)]
pub struct Rna(String);
impl Dna {
pub fn new(dna: &str) -> Result<Dna, usize> {
dna.chars()
.enumerate()
.find(|(_, n)| !"ACGT".contains(*n))
.map_or_else(|| Ok(Dna(dna.to_string())), |(i, _)| Err(i))
}
pub fn into_rna(self) -> Rna {
Rna(self
.0
.as_str()
.chars()
.map(|n| match n {
'A' => 'U',
'C' => 'G',
'G' => 'C',
'T' => 'A',
a => a,
})
.collect())
}
}
impl Rna {
pub fn new(rna: &str) -> Result<Rna, usize> {
rna.chars()
.enumerate()
.find(|(_, n)| !"ACGU".contains(*n))
.map_or_else(|| Ok(Rna(rna.to_string())), |(i, _)| Err(i))
}
}
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