improved error handling in temperature

temperature/.gitignore

@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk

temperature/Cargo.lock

@@ -2,5 +2,5 @@
 # It is not intended for manual editing.
 [[package]]
 name = "temperature"
-version = "0.1.0"
+version = "0.2.0"
 

temperature/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "temperature"
-version = "0.1.0"
+version = "0.2.0"
 authors = ["Pecha <petralawson@tuta.io>"]
 edition = "2018"
 

temperature/src/main.rs

@@ -5,8 +5,8 @@ fn main() {
     loop {
         let mut scale = String::new();
         let mut temperature = String::new();
-        let mut o_scale = String::new();
 
+        let mut o_scale = String::new();
         println!("Please enter a scale to convert from- Farenheit (F) or Celsius (C)");
         io::stdin().read_line(&mut scale)
             .expect("ALERTA ALERTA ANTIFASCISTA");
@@ -24,7 +24,13 @@ fn main() {
         println!("Please enter a temperature");
         io::stdin().read_line(&mut temperature)
             .expect("ALERTA ALERTA ANTIFASCISTA");
-        let mut temperature: f32 = temperature.trim().parse().unwrap();
+        let mut temperature: f32 = match temperature.trim().parse() {
+            Ok(x)   => x,
+            Err(_) => {
+                println!("Error: not recognised as a number, please try again.");
+                continue;
+            } 
+        };  
             
             // [°C] = ([°F] - 32) x 5/9
             //[°F] = [°C] x 9/5 + 32