Crate retex_lua 

Embedded Lua 5.3 and the LuaTeX Lua API.

LuaTexHost implements the engine’s LuaHost trait. During a \directlua call the engine is lent to Lua as scoped userdata stored in the registry under ENGINE_KEY. Library functions borrow it from there, so no Lua object can outlive the borrow. Nested calls (Lua → TeX → Lua) install a fresh scoped reference and restore the previous one afterwards.

The libraries follow the LuaTeX reference manual (chapter 10, “The TeX related libraries”) and are checked against the behaviour of the reference luatex binary.

Modules

luaotfload

A native replacement for luaotfload.

nodelib

The node library (LuaTeX manual §10.5) and node.direct.

Structs

LuaTexHost

The Lua interpreter with LuaTeX’s libraries.

Constants

ENGINE_KEY

Registry key of the scoped engine reference.

Functions

lua_error_message

Formats a Lua error the way LuaTeX reports it: the message without mlua’s decorations.

luac

--luaconly: compiles Lua files to bytecode, with luac’s options -o name (default texluac.out), -s (strip debug information), -p (parse only) and -v (version). Combining several files into one chunk and listings (-l) are not supported.