\x escape sequence must store byte as is, in resulting string

1 files changed, 6 insertions, 4 deletions

diff --git a/src/llex.js b/src/llex.js
index 4f5b97e..9983c1d 100644
--- a/src/llex.js
+++ b/src/llex.js
@@ -480,11 +480,13 @@ const read_string = function(ls, del, seminfo) {
         }
     }
     save_and_next(ls);  /* skip delimiter */
+
     seminfo.ts = new TValue(
         CT.LUA_TLNGSTR,
-        lua.to_luastring(
-            ls.buff.buffer.slice(1, ls.buff.buffer.length-1).join('')
-        )
+        ls.buff.buffer
+            .slice(1, ls.buff.n-1)
+            .map(e => typeof e === "string" ? lua.to_luastring(e) : [e])
+            .reduce((acc, e) => acc = acc.concat(e), [])  /* Hex value must not be converted */
     );
 };
 
@@ -641,4 +643,4 @@ module.exports.luaX_next        = luaX_next;
 module.exports.luaX_setinput    = luaX_setinput;
 module.exports.luaX_syntaxerror = luaX_syntaxerror;
 module.exports.luaX_token2str   = luaX_token2str;
-module.exports.luaX_tokens      = luaX_tokens;
\ No newline at end of file
+module.exports.luaX_tokens      = luaX_tokens;