From 9b9e466cdb994839cb2d0e1747cd70fca59f3c65 Mon Sep 17 00:00:00 2001
From: Taylor Bockman <taylor.bockman@originate.com>
Date: Mon, 18 Dec 2017 15:23:45 -0800
Subject: [PATCH] some parsy stuff

---
 src/commands.rs | 40 ------------------------------------
 src/parser.rs   | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+), 40 deletions(-)

diff --git a/src/commands.rs b/src/commands.rs
index a5cc411..432b3c5 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -1,46 +1,6 @@
 //! Commands contains the command constants expected during the UCI lifecycle
 //! It is useful to note many of these commands do not end with '\n'. This is because they expect arguments.
 
-///////// GUI to Engine /////////
-
-/// Tell engine to use the UCI (Universal Chess Interface)
-pub const UCI: &'static str = "uci\n";
-
-/// DEBUG toggles the debug mode of the engine on or off
-pub const DEBUG: &'static str = "debug";
-pub const DEBUGON: &'static str = "on";
-pub const DEBUGOFF: &'static str = "off";
-
-/// ISREADY synchronizes the engine with the GUI
-pub const ISREADY: &'static str = "isready\n";
-
-/// SETOPTION is sent to the engine when the user wants to change an internal parameter
-pub const SETOPTION: &'static str = "setoption";
-
-/// REGISTER is the command used to try to register an engine or tell the engine that registration will be done
-/// later
-pub const REGISTER: &'static str = "register";
-
-/// UCINEWGAME is sent to the engine when the next search (started with "position" and "go") will be from a different
-/// game
-pub const UCINEWGAME: &'static str = "ucinewgame\n";
-
-/// POSITION is sent to set up the position described in fenstring on the internal board and play the moves on the
-/// internal chess board
-pub const POSITION: &'static str = "position";
-
-/// GO signals to start calculating on the current position set up with the "position" command
-pub const GO: &'static str = "go\n";
-
-/// STOP signals to stop calculating as soon as possible
-pub const STOP: &'static str = "stop\n";
-
-/// PONDERHIT will be sent if the engine was told to ponder on the same move the user has played
-pub const PONDERHIT: &'static str = "ponderhit\n";
-
-/// QUIT signals to quit the program as soon as possible
-pub const QUIT: &'static str = "quit\n";
-
 
 ///////// Engine to GUI /////////
 
diff --git a/src/parser.rs b/src/parser.rs
index e69de29..bf4c0ee 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -0,0 +1,63 @@
+//! Parser contains the command parser for handling receiving commands from the GUI
+
+use std::collections::HashMap;
+use commands;
+
+/// Token represents a parsable token in the string sent via STDIN from the GUI
+pub enum Token {
+  UCI,
+  DEBUG,
+  ISREADY,
+  SETOPTION,
+  REGISTER,
+  UCINEWGAME,
+  POSITION,
+  GO,
+  STOP,
+  PONDERHIT,
+  QUIT,
+}
+
+pub enum CommandValue {
+  Int(i32),
+  Float(f64),
+  Text(String),
+  Boolean(bool),
+}
+
+pub struct Parser {}
+
+/// TokenResult is a convenient way t package an entire command string. It is identified by it's associated
+/// Token, and the arguments.
+///
+/// Example:
+///
+/// setoption name Hash value 32
+/// --------- ---- ---- ----- --
+///   Token   arg  val  arg  val
+///
+///
+/// The user is still responsible for knowing what to look for in the hashmap but this structure makes it far
+/// easier to work with commands. Some commands don't have arguments, in that case the args will be None.
+pub struct TokenResult {
+  token: Token,
+  args: Option<HashMap<&'static str, CommandValue>>,
+}
+
+impl Parser {
+
+  /// Instantiates a new Parser
+  pub fn new() -> Parser {
+    Parser{}
+  }
+
+  /// Parses a single string from the GUI and turns it into a neatly packaged TokenResult for processing
+  /// by the engine
+  pub fn parse(s: &str) -> TokenResult {
+
+  }
+
+}
+
+
+