base program

src/main.rs

@@ -0,0 +1,54 @@
+mod converter;
+
+#[macro_use]
+extern crate lazy_static;
+extern crate regex;
+
+use std::io;
+use regex::Regex;
+use std::result::Result::Err;
+
+fn main() {
+    println!("Enter a conversion | help");
+
+
+    loop {
+        let mut input = String::new();
+
+        io::stdin()
+            .read_line(&mut input)
+            .expect("Failed to read line");
+
+        let trimmed = input.trim();
+
+        if trimmed == "help" {
+            println!("Enter a number and end it with a suffix [bodh] and then a space and the system you want it converted to.\n\
+                Example: '255d h'\n\
+                Will lead to: 'FF'");
+        } else if trimmed == "exit" || trimmed == "c" || trimmed == "x"{
+            break;
+        } else {
+            let splits = split(trimmed);
+            match splits {
+                Ok(a) => {
+                    match converter::convert(&a.1, &a.2, &a.0) {
+                        Ok(a) => println!("{}", a),
+                        Err(e) => println!("{}", e)
+                    }
+                }
+                Err(_) => println!("Invalid input")
+            }
+        }
+    }
+}
+
+fn split(s: &str) -> Result<(String, String, String), ()> {
+    lazy_static! {
+        static ref RE: Regex = Regex::new(r"^(\w+) ?(\w) (\w)$").unwrap();
+    }
+
+    for capture in RE.captures_iter(s) {
+        return Ok((capture[1].to_string(), capture[2].to_string(), capture[3].to_string()));
+    }
+    Err(())
+}