Lua 5.3.0正式版发布

经过 4 个 RC 版本，Lua 终于迎来了 5.3.0 正式版。新版本主要增加对整数支持，支持位操作，提供一个基本的 UTF-8 库。

下载地址：http://www.lua.org/ftp/lua-5.3.0.tar.gz

其他方面的改进包括：

语言特性

• userdata can have any Lua value as uservalue

• integer division

• more flexible rules for some metamethods

库

• ipairs and the table library respect metamethods

• strip option in string.dump

• table library respects metamethods

• new function table.move

• new function string.pack

• new function string.unpack

• new function string.packsize

C API

• simpler API for continuation functions in C

• lua_gettable and similar functions return type of resulted value

• strip option in lua_dump

• new function: lua_geti

• new function: lua_seti

• new function: lua_isyieldable

• new function: lua_numbertointeger

• new function: lua_rotate

• new function: lua_stringtonumber

Lua 标准解释器

• can be used as calculator; no need to prefix with '='

• arg table available to all code