panic hook

Cargo.lock

@@ -40,6 +40,12 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "is-terminal"
 version = "0.4.10"
@@ -56,6 +62,7 @@ name = "kabel"
 version = "0.1.0"
 dependencies = [
  "colored",
+ "hex",
  "is-terminal",
  "libkabel",
  "tracing-subscriber",

kabel/Cargo.toml

@@ -12,3 +12,4 @@ libkabel = { version = "0.1", path = "../libkabel", features = ["pretty-emitter"
 is-terminal = "0.4"
 tracing-subscriber = "0.3"
 colored = "2"
+hex = "0.4"

kabel/src/main.rs

@@ -7,8 +7,27 @@ use libkabel::source::SourceFile;
 use std::error::Error;
 use std::io;
 use std::{env, fs};
+use std::fmt::Write;
+
 
 fn main() -> Result<(), Box<dyn Error>> {
+    std::panic::set_hook(Box::new(|i| {
+        eprintln!("{}", "----- Kabel has crashed! -----".red());
+        eprintln!("{} {} {}", "--".red(), "THIS IS NOT YOUR FAULT".bold().red(), "--".red());
+        eprintln!("{}", "Please report the following Error ID to the Kabel developers, along with your program's complete source code.".red());
+
+        let mut panic_info = String::new();
+        write!(panic_info, "{i}").unwrap();
+        let error_id = hex::encode(panic_info);
+
+        eprintln!("{}{}", "Error ID: ".red(), error_id.italic().red());
+        eprintln!("{}", "Please, either:".red());
+        eprintln!("{}", "- Open an issue at https://git.e3t.cc/tm85/kabel, or".red());
+        eprintln!("{}", "- E-Mail the developers at kabel@e3t.cc".red());
+        eprintln!("{} {} {}", "-- Remember:".red(), "THIS IS NOT YOUR FAULT".bold().red(), "--".red());
+        eprintln!("{}", "----- Kabel has crashed! -----".red());
+    }));
+
     let argv: Vec<String> = env::args().collect();
     if argv.len() != 2 {
         println!("Usage: {} <file.kab>", &argv[0]);
@@ -49,7 +68,7 @@ fn main() -> Result<(), Box<dyn Error>> {
                         "error:  Please report this error to the kabel developers along with your"
                             .red()
                     );
-                    eprintln!("{}", "fail:  program's complete source code. Either");
+                    eprintln!("{}", "fail:  program's complete source code. Either".red());
                     eprintln!(
                         "{}",
                         "fail:   - Open an Issue at https://git.e3t.cc/tm85/kabel, or".red()

libkabel/src/lexer/token.rs

@@ -46,7 +46,7 @@ impl Display for TokenType {
             TokenType::Minus => write!(f, "-"),
             TokenType::Plus => write!(f, "+"),
             TokenType::Star => write!(f, "*"),
-            TokenType::Semicolon => write!(f, ";\n"),
+            TokenType::Semicolon => writeln!(f, ";"),
             TokenType::To => write!(f, "to"),
             TokenType::Identifier(i) => write!(f, "{i}"),
             TokenType::Colon => write!(f, ":"),