From a88c8e9216a6b891714096ed90c3eb13d330a975 Mon Sep 17 00:00:00 2001
From: Araozu <faraoz@unsa.edu.pe>
Date: Fri, 3 Mar 2023 09:23:08 -0500
Subject: [PATCH] Error messages

---
 examples/val_binding.misti      | 1 +
 src/error_handling/lex_error.rs | 3 ++-
 src/lexic/mod.rs                | 6 +++++-
 3 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 examples/val_binding.misti

diff --git a/examples/val_binding.misti b/examples/val_binding.misti
new file mode 100644
index 0000000..f97cbed
--- /dev/null
+++ b/examples/val_binding.misti
@@ -0,0 +1 @@
+val identifier = 322
\ No newline at end of file
diff --git a/src/error_handling/lex_error.rs b/src/error_handling/lex_error.rs
index 35e171c..5ad4c7d 100644
--- a/src/error_handling/lex_error.rs
+++ b/src/error_handling/lex_error.rs
@@ -14,11 +14,12 @@ impl PrintableError for LexError {
         let whitespace = whitespace.iter().collect::<String>();
 
         format!(
-            "\n{}\n{}^\n\n{}{}", 
+            "\n{}\n{}^\n\n{}{}\n{}", 
             erroneous_code, 
             whitespace, 
             "Invalid character at pos ",
             self.position + 1,
+            self.reason,
         )
     }
 }
diff --git a/src/lexic/mod.rs b/src/lexic/mod.rs
index e6f2d4d..c8e1169 100755
--- a/src/lexic/mod.rs
+++ b/src/lexic/mod.rs
@@ -85,7 +85,11 @@ fn next_token(chars: &Chars, current_pos: usize) -> LexResult {
         .unwrap_or_else(|| {
             let error = LexError {
                 position: current_pos,
-                reason: format!("Unrecognized character: {}", next_char),
+                reason: format!(
+                    "Unrecognized character `{}` (escaped: `{}`)",
+                    next_char, 
+                    next_char.escape_default().to_string(),
+                ),
             };
             LexResult::Err(error)
         })