LUATEX(1)

NAME
luatex, dviluatex, luahbtex, luajittex, texlua, texluac - An extended version of TeX using Lua as an embedded scripting language

SYNOPSIS
luatex [--lua=FILE] [OPTION]... [TEXNAME[.tex]] [COMMANDS]
luatex [--lua=FILE] [OPTION]... \FIRST-LINE
luatex [--lua=FILE] [OPTION]... &FMT [ARGS]

DESCRIPTION
Run the luaTeX typesetter on TEXNAME, usually creating TEXNAME.pdf. Any remaining COMMANDS are processed as luaTeX input, after TEXNAME is read.

Alternatively, if the first non-option argument begins with a backslash, interpret all non-option arguments as a line of luaTeX input.

Alternatively, if the first non-option argument begins with a &, the next word is taken as the FMT to read, overriding all else. Any remaining arguments are processed as above.

If no arguments or options are specified, prompt for input.

If called as texlua it acts as a Lua interpreter. If called as texluac it acts as a Lua bytecode compiler.

LuaTeX began as an extended version of pdfTeX with Unicode and OpenType font support, embedded Lua scripting language, the e-TeX and Omega extensions, as well as an integrated MetaPost engine, that can create PDF files as well as DVI files. For more information about luatex, see http://www.luatex.org; and you can read the LuaTeX manual using the texdoc utility (texdoc luatex).

All LuaTeX text input and output is considered to be Unicode text, although various filters make it possible to support any encoding.

In DVI mode, LuaTeX can be used as a complete replacement for the TeX engine.

In PDF mode, LuaTeX can natively handle the PDF, JPG, JBIG2, and PNG graphics formats. LuaTeX cannot include PostScript or Encapsulated PostScript (EPS) graphics files; first convert them to PDF using epstopdf (1).

The luajittex variant includes the Lua just-in-time compiler.

The luahbtex variant can use the HarfBuzz engine for glyph shaping, instead of LuaTeX's built-in shaper.

OPTIONS
When the LuaTeX executable starts, it looks for the --lua command-line option. If there is no --lua option, the command line is interpreted in a similar fashion as in traditional pdfTeX and Aleph. But if the option is present, LuaTeX will enter an alternative mode of command-line parsing in comparison to the standard web2c programs. The presence of --lua makes most of other options unreliable, because the lua initialization file can disable kpathsea and/or hook functions into various callbacks.

--lua=FILE
    The lua initialization file.

The following two options alter the executable behaviour:

--luaonly
    Start LuaTeX as a Lua interpreter. In this mode, it will set Lua's arg[0] to the found script name, pushing preceding options in negative values and the rest of the command line in the positive values, just like the Lua interpreter. LuaTeX will exit immediately after executing the specified Lua script.

--luaconly
    Start LuaTeX as a Lua byte compiler. In this mode, LuaTeX is exactly like luac from the standalone Lua distribution, except that it does not have the -l switch, and that it accepts (but ignores) the --luaconly switch.

Then the regular web2c options:

--debug-format
    Debug format loading.

--draftmode
    Sets \pdfdraftmode so luaTeX doesn't write a PDF and doesn't read any included images, thus speeding up execution.

--enable-write18
    Synonym for --shell-escape.

--disable-write18
    Synonym for --no-shell-escape.

--shell-escape
    Enable the \write18{command} construct, and Lua functions os.execute(), os.exec(), os.spawn(), and io.popen(). The command can be any shell command. This construct is normally disallowed for security reasons.

--no-shell-escape
    Disable the \write18{command} construct and the other Lua functions, even if it is enabled in the texmf.cnf file.

--shell-restricted
    Enable restricted version of \write18, os.execute(), os.exec(), os.spawn(), and io.popen(), only commands listed in texmf.cnf file are allowed.

--file-line-error
    Print error messages in the form file:line:error which is similar to the way many compilers format them.

--no-file-line-error
    Disable printing error messages in the file:line:error style.

--fmt=FORMAT
    Use FORMAT as the name of the format to be used, instead of the name by which luaTeX was called or a %& line.

--help
    Print help message and exit.

--ini
    Start in INI mode, which is used to dump formats. The INI mode can be used for typesetting, but no format is preloaded, and basic initializations like setting catcodes may be required.

--interaction=MODE
    Sets the interaction mode. The MODE can be either batchmode, nonstopmode, scrollmode, and errorstopmode. The meaning of these modes is the same as that of the corresponding \commands.

--jobname=NAME
    Use NAME for the job name, instead of deriving it from the name of the input file.

--kpathsea-debug=BITMASK
    Sets path searching debugging flags according to the BITMASK. See the Kpathsea manual for details.

--mktex=FMT
    Enable mktexFMT generation, where FMT must be either tex or tfm.

--nosocket
    Disable the luasocket (network) library.

--output-comment=STRING
    In DVI mode, use STRING for the DVI file comment instead of the date. This option is ignored inPDF mode.

--output-directory=DIRECTORY
    Write output files in DIRECTORY instead of the current directory. Look up input files in DIRECTORY first, then along the normal search path.

--output-format=FORMAT
    Set the output format mode, where FORMAT must be either pdf or dvi. This also influences the set of graphics formats understood by luaTeX.

--progname=NAME
    Pretend to be program NAME (only for kpathsea).

--recorder
    Enable the filename recorder. This leaves a trace of the files opened for input and output in a file with extension .fls.

--safer
    Disable some Lua commands that can easily be abused by a malicious document.

--synctex=NUMBER
    Enable/disable SyncTeX extension.

--version
    Print version information and exit.

--credits
    Print credits and version details.

The following options are ignored:

--8bit, --etex, --parse-first-line, --no-parse-first-line
    These are always on.

--default-translate-file=TCXNAME, --translate-file=TCXNAME
    These are always off.

SEE ALSO
pdftex(1), etex(1), aleph(1), lua(1).

AUTHORS
The primary authors of LuaTeX are Taco Hoekwater, Hartmut Henkel, Hans Hagen, and Luigi Scarso, with help from Martin Schröder, Karel Skoupy, and Han The Thanh.

TeX was designed by Donald E. Knuth, who implemented it using his Web system for Pascal programs. It was ported to Unix at Stanford by Howard Trickey, and at Cornell by Pavel Curtis. The version now offered with the Unix TeX distribution is that generated by the Web to C system (web2c), originally written by Tomas Rokicki and Tim Morgan.

The LuaTeX home page is http://luatex.org.