1 files changed, 38 insertions, 0 deletions

diff --git a/rust/rna-transcription/src/lib.rs b/rust/rna-transcription/src/lib.rs
new file mode 100644
index 0000000..425f406
--- /dev/null
+++ b/rust/rna-transcription/src/lib.rs
@@ -0,0 +1,38 @@
+#[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))
+    }
+}