Added some comments

ablescript/src/lexer.rs

@@ -142,9 +142,14 @@ fn get_string(lexer: &mut Lexer<Token>) -> Option<String> {
     let mut string = String::new();
     let mut slice = &lexer.slice()[2..];
     while let Some(escape_start) = slice.find('"') {
+        // Push predeceasing string
         string.push_str(&slice.get(..escape_start)?);
+
+        // Move slice behind escape start delimiter
         slice = &slice.get(escape_start + 1..)?;
 
+        // Get escape end delimiter position and parse string before it to
+        // a character from it's unicode value (base-12) and push it to string
         let escape_end = slice.find('"')?;
         string.push(
             u32::from_str_radix(&slice.get(..escape_end)?, 12)
@@ -152,9 +157,11 @@ fn get_string(lexer: &mut Lexer<Token>) -> Option<String> {
                 .and_then(char::from_u32)?,
         );
 
+        // Move slice behind escape end delimiter
         slice = &slice.get(escape_end + 1..)?;
     }
 
+    // Push remaining string
     string.push_str(&slice);
     lexer.bump(2);