Don't pass user input as format to luaL_error

2 files changed, 4 insertions, 4 deletions

diff --git a/src/loslib.js b/src/loslib.js
index 976ab92..baaee74 100644
--- a/src/loslib.js
+++ b/src/loslib.js
@@ -44,14 +44,14 @@ const getfield = function(L, key, d, delta) {
     let res = lua.lua_tointegerx(L, -1);
     if (res === false) {  /* field is not an integer? */
         if (t !== lua.LUA_TNIL)  /* some other value? */
-            return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' is not an integer`), true);
+            return lauxlib.luaL_error(L, lua.to_luastring("field '%s' is not an integer"), key);
         else if (d < 0)  /* absent field; no default? */
-            return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' missing in date table`), true);
+            return lauxlib.luaL_error(L, lua.to_luastring("field '%s' missing in date table"), key);
         res = d;
     }
     else {
         if (!(-L_MAXDATEFIELD <= res && res <= L_MAXDATEFIELD))
-            return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' is out-of-bound`), true);
+            return lauxlib.luaL_error(L, lua.to_luastring("field '%s' is out-of-bound"), key);
         res -= delta;
     }
     lua.lua_pop(L, 1);
diff --git a/src/lstrlib.js b/src/lstrlib.js
index 41c48ef..56817a0 100644
--- a/src/lstrlib.js
+++ b/src/lstrlib.js
@@ -1107,7 +1107,7 @@ const push_onecapture = function(ms, i, s, e) {
         if (i === 0)
             lua.lua_pushlstring(ms.L, ms.src.slice(s), e - s);  /* add whole match */
         else
-            lauxlib.luaL_error(ms.L, lua.to_luastring(`invalid capture index %${i + 1}`));
+            lauxlib.luaL_error(ms.L, lua.to_luastring("invalid capture index %%%d"), i + 1);
     } else {
         let l = ms.capture[i].len;
         if (l === CAP_UNFINISHED) lauxlib.luaL_error(ms.L, lua.to_luastring("unfinished capture", true));