From c7df2bd546d127bb12491a3b604f434c695a4f28 Mon Sep 17 00:00:00 2001
From: Musselman <jtmuss@pm.me>
Date: Thu, 14 Mar 2024 14:47:48 -0500
Subject: [PATCH] Add basic Input validation for if user enters digit or 'q' as
 a choice

---
 .gitignore  |  5 +++++
 Cargo.toml  |  8 ++++++++
 src/main.rs | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+)
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
index 3ca43ae..193d30e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,8 @@ Cargo.lock
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
+
+
+# Added by cargo
+
+/target
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..3088a6a
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "math-tool"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..7ff2901
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,51 @@
+/*
+Written by: James Musselman
+On: 3/14/2024
+Updated: Never
+Description:
+    This tool was writen as part of my 100DaysOfCode commitment for the 2024 year to help establish a
+    habit of programming daily and fuel my continious drive to learn.
+
+    The tool below should allow the user to run basic, intermediate, and advanced math computations.
+    The user will select the equation or type of math they want to be done, enter the data, and
+    then recive the result of the computation.
+
+    Future work could include showing how the answer was calculated, showing graphs, and exporting to
+    a text file.
+
+*/
+use std::io;
+
+
+fn main() {
+    // TODO: Greet and explain tool
+
+    // Get user choice on what they want to use
+    loop {
+        let mut user_input = String::new();
+
+        println!("Please select a function below or use 'q' to quit:");
+
+        io::stdin().read_line(&mut user_input)
+            .expect("Failed to read line");
+
+        if user_input.trim().eq_ignore_ascii_case("q") {
+            break;
+        }
+
+        let num: Result<i32, _> = user_input.trim().parse();
+
+        // Match statement to run choice
+        match num {
+            Ok(num) => {
+                run_function(num);               
+            } 
+            Err(_) => println!("Invalid input. Please try again."),
+        }
+    }
+}
+
+fn run_function(num: i32) {
+// run choice, then ask again or quit if the user selects that option
+println!("{}",num)
+}
\ No newline at end of file