Parse serial input

src/main.rs

@@ -1,9 +1,46 @@
-use anyhow::Result;
+use anyhow::{bail, Error, Result};
 use std::{
     io::{BufRead, BufReader},
+    str::FromStr,
     time::Duration,
 };
 
+#[derive(Debug)]
+enum Speed {
+    Slow,
+    Fast,
+    Inst,
+}
+
+impl FromStr for Speed {
+    type Err = Error;
+
+    fn from_str(s: &str) -> Result<Self> {
+        match s {
+            "SLOW" => Ok(Self::Slow),
+            "FAST" => Ok(Self::Fast),
+            "INST" => Ok(Self::Inst),
+            _ => bail!("Could not parse speed"),
+        }
+    }
+}
+
+fn parse(input: &str) -> Result<(usize, usize, f32, Speed)> {
+    let input = input
+        .replace("CPS, ", "")
+        .replace(", CPM, ", " ")
+        .replace(", uSv/hr, ", " ")
+        .replace(", ", " ");
+    let input: Vec<&str> = input.split(' ').collect();
+
+    Ok((
+        input[0].parse::<usize>()?,
+        input[1].parse::<usize>()?,
+        input[2].parse::<f32>()?,
+        input[3].parse::<Speed>()?,
+    ))
+}
+
 fn main() -> Result<()> {
     let port_name = "/dev/serial0";
     let baud_rate = 9600;
@@ -17,5 +54,6 @@ fn main() -> Result<()> {
         let mut line = String::new();
         port.read_line(&mut line)?;
         println!("{:?}", line);
+        println!("{:?}", parse(line.trim())?);
     }
 }