Download e-book for kindle: Lua 5.1 Reference Manual by Roberto Ierusalimschy

By Roberto Ierusalimschy

This can be a brief succinct reference guide written in a transparent and concise demeanour. It tells you every thing you actually need to grasp and never even more. There are brief examples of syntax to assist clarify the suggestions. if you would like to easily write courses in LUA, then this is often your selection. if you want to head deeper (e.g. embed LUA on your personal software) then i like to recommend you get "Programming in LUA".

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As lua_load, this function only loads the chunk; it does not run it. luaL_loadstring [-0, +1, m] int luaL_loadstring (lua_State *L, const char *s); Loads a string as a Lua chunk. This function uses lua_load to load the chunk in the zero-terminated string s. This function returns the same results as lua_load. Also as lua_load, this function only loads the chunk; it does not run it. luaL_newmetatable [-0, +1, m] int luaL_newmetatable (lua_State *L, const char *tname); If the registry already has the key tname, returns 0.

If you do not include this library in your application, you should check carefully whether you need to provide implementations for some of its facilities. , nil or false); otherwise, returns all its arguments. " collectgarbage (opt [, arg]) This function is a generic interface to the garbage collector. It performs different functions according to its first argument, opt: • "stop": stops the garbage collector. • "restart": restarts the garbage collector. • "collect": performs a full garbage-collection cycle.

Msg is an additional text to go into the error message. luaL_checkstring [-0, +0, v] const char *luaL_checkstring (lua_State *L, int narg); Checks whether the function argument narg is a string and returns this string. This function uses lua_tolstring to get its result, so all conversions and caveats of that function apply here. luaL_checktype [-0, +0, v] void luaL_checktype (lua_State *L, int narg, int t); Checks whether the function argument narg has type t. See lua_type for the encoding of types for t.

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