Forgot to add this file in commit 3558a4869a

This file is necessary to completely resolve issue #4

src/messages.rs

@@ -0,0 +1,35 @@
+use colored::*;
+use std::process;
+
+#[macro_export]
+macro_rules! info {
+    ($($arg:tt)*) => { 
+        println!("├ {:7} — {}", "Info".green(), format_args!($($arg)*));
+    };
+}
+
+#[macro_export]
+macro_rules! warning {
+    ($($arg:tt)*) => { 
+        println!("├ {:7} — {}", "Warning".yellow(), format_args!($($arg)*));
+    };
+}
+
+#[macro_export]
+macro_rules! error {
+    ($($arg:tt)*) => { 
+        eprintln!("└ {:7} — {}", "Error".on_red().white(), format_args!($($arg)*));
+        process::exit(0);
+    };
+}
+
+pub fn welcome(string: &str) {
+    println!("┌{}┐", "─".repeat(string.len() + 2)); 
+    println!("│{text:^-width$}│", text = string, width = string.len() + 2);
+    println!("├{}┘", "─".repeat(string.len() + 2));
+}
+
+pub fn goodbye() {
+    println!("└ {:7}", "Goodbye!".green());
+    process::exit(0);
+}