rockbox/manual/plugins/lua.tex

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\subsection{Lua scripting language}
To quote from the Lua website (\url{http://www.lua.org}), Lua is a ``powerful,
fast, lightweight, embeddable scripting language''. Select a \fname{.lua} file
in the \setting{File Browser} to run it. For more information on programming
in Lua, please see \url{http://www.lua.org/manual/5.1/} and
\url{http://www.lua.org/pil/}.
There are a few exceptions/additions to the Lua support in Rockbox:
\begin{description}
\item[No floating point support.] The number type in Lua is usually float,
however in the Rockbox implementation it is integer.
\item[Non-supported libraries.] The coroutine, debug and math libraries are
not supported.
\item[Partially-supported libraries.] The os and package libraries are only
partially supported.
\item[Additional libraries.] The bitlib library is integrated to support
bitwise operators. See \url{http://luaforge.net/projects/bitlib} and
\url{http://lua-users.org/wiki/BitwiseOperators}.
\end{description}
Documentation of the API is still a work in progress, and the API itself is
not finalised. For the latest information, see \wikilink{PluginLua}.\\
\note{Please note that if a script does not provide a way to exit, then
the only way to exit will be to reset the \dap.}