Some work on the parser

src/parser.rs

@@ -52,8 +52,8 @@ impl Parser {
   }
 
   /// Parses a single string from the GUI and turns it into a neatly packaged TokenResult for processing
-  /// by the engine
+  /// by the engine.
-  pub fn parse(s: &str) -> TokenResult {
+  pub fn parse(s: &str) -> Result<TokenResult, &'static str> {
     let tokens: Vec<&str> = s.split_whitespace().collect::<Vec<&str>>();
   }
 }

tests/parser.rs

@@ -0,0 +1,6 @@
+// TODO: Write parser tests before implementing the parser.
+//       Start with setoption and branch out from there. The commands are finite so you should be able
+//       to write a test for each one. Take the time to do this right so that the rest of this project is
+//       a cakewalk
+//
+//       // Also remember to fix the constant thing noted in the lib.rs for uci.... lol