阅读词法分析器 添加相应注释

src/lobject.c

@@ -131,7 +131,7 @@ void luaO_arith (lua_State *L, int op, const TValue *p1, const TValue *p2,
   }
 }
 
-
+// hex字符转数字
 int luaO_hexavalue (int c) {
   if (lisdigit(c)) return c - '0';
   else return (ltolower(c) - 'a') + 10;
@@ -319,7 +319,7 @@ size_t luaO_str2num (const char *s, TValue *o) {
   return (e - s) + 1;  /* success; return string size */
 }
 
-
+// utf8编码去除编码头
 int luaO_utf8esc (char *buff, unsigned long x) {
   int n = 1;  /* number of bytes put in buffer (backwards) */
   lua_assert(x <= 0x7FFFFFFFu);