added interactive inputs, better error messages, bugfixes

src/error/colors.rs

@@ -0,0 +1,37 @@
+pub struct Colors;
+
+impl Colors {
+    pub const RESET: &'static str = "\x1b[0m";
+    pub const BOLD: &'static str = "\x1b[1m";
+    
+    pub const RED: &'static str = "\x1b[31m";
+    pub const GREEN: &'static str = "\x1b[32m";
+    pub const YELLOW: &'static str = "\x1b[33m";
+    pub const BLUE: &'static str = "\x1b[34m";
+    pub const MAGENTA: &'static str = "\x1b[35m";
+    pub const CYAN: &'static str = "\x1b[36m";
+    
+    pub const BOLD_RED: &'static str = "\x1b[1;31m";
+    pub const BOLD_YELLOW: &'static str = "\x1b[1;33m";
+    pub const BOLD_CYAN: &'static str = "\x1b[1;36m";
+}
+
+pub fn error(msg: &str) -> String {
+    format!("{}{}ERROR:{} {}", Colors::BOLD_RED, Colors::BOLD, Colors::RESET, msg)
+}
+
+pub fn warning(msg: &str) -> String {
+    format!("{}{}WARNING:{} {}", Colors::BOLD_YELLOW, Colors::BOLD, Colors::RESET, msg)
+}
+
+pub fn info(msg: &str) -> String {
+    format!("{}{}INFO:{} {}", Colors::BOLD_CYAN, Colors::BOLD, Colors::RESET, msg)
+}
+
+pub fn location(file: &str, line: usize) -> String {
+    format!("{}{}:{}{}", Colors::CYAN, file, line, Colors::RESET)
+}
+
+pub fn highlight(text: &str) -> String {
+    format!("{}{}{}", Colors::YELLOW, text, Colors::RESET)
+}