Section: Web2C 2015/dev (1)
Updated: 12 April 2011Index
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luatex, texlua, texluac - An extended version of pdfTeX using Lua as
an embedded scripting language
Run the luaTeX typesetter on
are processed as luaTeX input, after
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 &,
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 lua interpreter.
If called as texluac it acts as lua bytecode compiler.
LuaTeX is an extended version of pdfTeX with Unicode and OpenType
font support, embeded Lua scripting language, the e-TeX
and Omega extensions, as well as integrated MetaPost engine, that
can create PDF files as well as DVI files.
For more information about luatex, see http://www.luatex.org, you can
read LuaTeX manual using texdoc utility (texdoc luatex).
All LuaTeX text input and output is considered to be Unicode text.
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).
When the LuaTeX executable starts, it looks for the --lua
If there is no --lua
option, the commandline 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 commandline 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.
The lua initialization file.
The following two options alter the executable behaviour:
Start LuaTeX as a Lua interpreter. In this mode, it will set Lua's
arg to the found script name, pushing preceding options in
negative values and the rest of the commandline in the positive values,
just like the Lua interpreter. LuaTeX will exit immediately after
executing the specified Lua script.
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 loading.
Sets \pdfdraftmode so luaTeX doesn't write a PDF and doesn't read
any included images, thus speeding up execution.
Synonym for --shell-escape.
Synonym for --no-shell-escape.
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
construct and the other Lua functions, even if it is enabled in the
Enable restricted version of \write18, os.execute(),
os.exec(), os.spawn(), and io.popen(), only commands
listed in texmf.cnf file are allowed.
Print error messages in the form file:line:error which is similar
to the way many compilers format them.
Disable printing error messages in the file:line:error style.
Use FORMAT as the name of the format to be used, instead of the
name by which luaTeX was called or a %& line.
Print help message and exit.
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.
Sets the interaction mode. The MODE can be either
The meaning of these modes is the same as that of the corresponding
Use NAME for the job name, instead of deriving it from the name
of the input file.
Sets path searching debugging flags according to the BITMASK.
See the Kpathsea manual for details.
Enable mktexFMT generation, where FMT must be either tex
Disable the luasocket (network) library.
In DVI mode, use STRING for the DVI file comment
instead of the date. This option is ignored inPDF mode.
Write output files in DIRECTORY instead of the current directory.
Look up input files in DIRECTORY first, then along the normal
Set the output format mode, where FORMAT must be either pdf
This also influences the set of graphics formats understood by luaTeX.
Pretend to be program NAME (only for kpathsea).
Enable the filename recorder.
This leaves a trace of the files opened for input and output
in a file with extension .fls.
Disable some Lua commands that can easily be abused by a malicious
Enable/disable SyncTeX extension.
Print version information and exit.
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.
The primary authors of LuaTeX are Hartmut Henkel, Taco Hoekwater,
and Hans Hagen, 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
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.
- SEE ALSO