新闻 Lua 5.3.0 正式版发布 下载

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
  

Lua 5.3.0 正式版发布下载地址