std

src/tokenizer.rs

@@ -220,7 +220,7 @@ impl Tokenizer {
                 self.handle_indentation()?;
             }
             '0'..='9' => self.scan_number(),
-            'A'..='Z' | 'a'..='z' | '_' => self.scan_identifier(),
+            'A'..='Z' | 'a'..='z' | '_' | '.' => self.scan_identifier(),
             _ => return error!(self.loc, "unexpected character"),
         }
         Ok(())
@@ -295,7 +295,11 @@ impl Tokenizer {
     }
 
     fn scan_identifier(&mut self) {
-        while self.peek().is_alphanumeric() || self.peek() == '_' || self.peek() == '.' {
+        while self.peek().is_alphanumeric()
+            || self.peek() == '_'
+            || self.peek() == '.'
+            || self.peek() == '!'
+        {
             self.advance();
         }