From 83961409a75dee76b03d913dcf435fbe3c72ba54 Mon Sep 17 00:00:00 2001
From: Mark <mark@betalupi.com>
Date: Mon, 20 Mar 2023 20:54:43 -0700
Subject: [PATCH] Added basic number parser

---
 README.md                   | 2 +-
 src/parser/replace_words.rs | 8 ++++++++
 src/parser/tokenize.rs      | 6 ++++++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e16c4d8..3d21f6b 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
  - Fix documentation and variable names
  - implicit multiply
  - Function application
- - Syntax check (parenthesis, argument type)
+ - Syntax check (parenthesis, argument type, position of error)
 
 # Eventually
  - rationals
diff --git a/src/parser/replace_words.rs b/src/parser/replace_words.rs
index 12c77bb..f53a05d 100644
--- a/src/parser/replace_words.rs
+++ b/src/parser/replace_words.rs
@@ -20,6 +20,14 @@ pub fn replace_words(g: &mut Token) -> Result<(), ()> {
 				replace_words(&mut t)?;
 				new.push_back(t);
 			},
+			Token::PreNumber(ref s) => {
+				let n = match s.parse() {
+					Ok(n) => n,
+					Err(_) => panic!()
+				};
+
+				new.push_back(Token::Number(n));
+			}
 			Token::PreWord(ref s) => {
 				if s == "to" {
 					new.push_back(Token::PreOperator(String::from("to")));
diff --git a/src/parser/tokenize.rs b/src/parser/tokenize.rs
index 928c7c9..c0cf05b 100644
--- a/src/parser/tokenize.rs
+++ b/src/parser/tokenize.rs
@@ -11,7 +11,13 @@ pub enum Token {
 	PreNumber(String),
 	PreWord(String),
 
+	// All PreGroups should vanish after operator folding
+	// All PreOperators should become Operators
+	// All PreNumbers should become Numbers
+	// All PreWords should become TODO.
+
 	// Only used in tree
+	Number(f64),
 	Multiply(VecDeque<Token>),
 	Divide(VecDeque<Token>),
 	Add(VecDeque<Token>),