Changes

* ''Recommended reading'': current [http://www.luatex.org/svn/trunk/manual/luatexref-t.pdf Luatex manual]];

* the [http://wiki.luatex.org/index.php/Main_Page Luatex Wiki];* [[cld|Context Lua Documents]];* [[Running Lua Code Externally]].

<!--|[[source:{{src|l-aux.lua]] }} || only intermediary-->

|[[source:{{src|l-boolean.lua|l-boolean.lua]]}}|| <tt>toboolean()</tt> &ndash; equivalent of <tt>tonumber()</tt> and <tt>tostring()</tt>;

|[[source:l{{src|util-dimendim.lua|lutil-dimendim.lua]] }} || Tex dimensions (accessible as ''number.*'' namespace);

|[[source:{{src|l-dir.lua|l-dir.lua]] }} || directory handling (globbing &c., namespace: ''dir.*'');

|[[source:{{src|l-file.lua|l-file.lua]] }} || filesystem related functions (namespace: ''file.*'');

|[[source:{{src|l-io.lua|l-io.lua]] }} || [[Extensions_to_the_Lua_I/O_library|file/stream handling]];

|[[source:{{src|l-lpeg.lua|l-lpeg.lua]] }} || [[String_ManipulationString_manipulation#l-lpeg.lua|pattern helpers]];

|[[source:{{src|l-math.lua|l-math.lua]] }} || extra functions for the Lua ''math'' library;

|[[source:{{src|l-md5.lua|l-md5.lua]] }} || checksum comparison, loading and saving;

|[[source:{{src|l-number.lua|l-number.lua]] }} || additions to the ''number.*'' namespace &ndash; bitset handling;

|[[source:{{src|l-os.lua|l-os.lua]] }} || additions to the ''os.*'' library, platform initialization;

|[[source:{{src|l-pdfview.lua|l-pdfview.lua]]}}|| <tt>--autopdf</tt> handling of ''mtxrun'';

|[[source:{{src|l-set.lua|l-set.lua]] }} || set handling (''set.*'' namespace);

|[[source:{{src|l-string.lua|l-string.lua]] }} || [[String_ManipulationString_manipulation#l-string.lua|string manipulation]];

|[[source:{{src|l-table.lua|l-table.lua]] }} || [[table manipulation]];

|[[source:{{src|l-unicode.lua|l-unicode.lua]]}}|| extensions to the ''sln-unicode'' lib, converters for character encodings;

|[[source:{{src|l-url.lua|l-url.lua]] }} || URI matching (namespace: ''url.*''; also a nice tutorial on lpeg).<!--|[[source:{{src|l-utils.lua|l-utils.lua]] }} || only intermediary--><!--|[[source:{{src|l-xml.lua|l-xml.lua]] }} || only intermediary-->

* http://w3.impa.br/~diego/software/luasocket/ &ndash; LuaSocket.;* http://luaforge.net/projects/sln/ &ndash; Slnunicode (luaforge.net is down at the moment of writing).;* http://luaforge.net/projects/lzlib/ &ndash; Lua-Zlib (luaforge.net is down at the moment of writing).