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ETEX(1)				  Web2C 7.5.5			       ETEX(1)

NAME
       etex, einitex, evirtex - extended TeX

SYNOPSIS
       etex [options] [& format ] [ file | \ commands ]

DESCRIPTION
       Run  the	 e-TeX	typesetter on file, usually creating file.dvi.	If the
       file argument has no extension, ".tex" will be appended to it.  Instead
       of a filename, a set of e-TeX commands can be given, the first of which
       must start with a backslash.  With a &format argument e-TeX uses a dif‐
       ferent set of precompiled commands, contained in format.fmt; it is usu‐
       ally better to use the -fmt format option instead.

       e-TeX is the first concrete  result  of	an  international  research  &
       development  project,  the NTS Project, which was established under the
       aegis of DANTE e.V. during 1992. The aims of the project are to perpet‐
       uate  and  develop  the spirit and philosophy of TeX, whilst respecting
       Knuth's wish that TeX should remain frozen.

       e-TeX can be used in two different modes: in compatibility mode	it  is
       supposed	 to  be	 completely  interchangable  with  standard  TeX.   In
       extended mode several new primitives are added that  facilitate	(among
       other things) bidirectional typesetting.

       An  extended  mode  format  is  generated  by prefixing the name of the
       source file for the format with an  asterisk  (*).   Such  formats  are
       often  prefixed	with an `e', hence etex as the extended version of tex
       and elatex as the extended version of latex.   However,	eplain	is  an
       exception to this rule.

       The  einitex  and  evirtex commands are e-TeX's analogues to the initex
       and virtex commands.  In this installation, they are symbolic links  to
       the etex executable.  These symbolic links may not exist at all.

       e-TeX's	handling  of  its command-line arguments is similar to that of
       the other TeX programs in the web2c implementation.

OPTIONS
       This version of e-TeX understands the following command line options.

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

       -enc   Enable  the encTeX extensions.  This option is only effective in
	      combination with -ini.  For documentation of the	encTeX	exten‐
	      sions see http://www.olsak.net/enctex.html.

       -etex  Enable  the  e-TeX extensions.  This option is only effective in
	      combination with -ini.

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

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

       -file-line-error-style
	      This is the old name of the -file-line-error option.

       -halt-on-error
	      Exit with an error code when an error is encountered during pro‐
	      cessing.

       -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.

       -ipc   Send DVI output to a socket as well as the  usual	 output	 file.
	      Whether this option is available is the choice of the installer.

       -ipc-start
	      As  -ipc,	 and  starts  the  server  at  the  other end as well.
	      Whether this option is available is the choice of the installer.

       -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, where fmt must be either tex or tfm.

       -mltex Enable MLTeX extensions.	Only  effective	 in  combination  with
	      -ini.

       -no-mktex fmt
	      Disable mktexfmt, where fmt must be either tex or tfm.

       -output-comment string
	      Use string for the DVI file comment instead of the date.

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

       -parse-first-line
	      If the first line of the main input file begins with %& parse it
	      to look for a dump name or a -translate-file option.

       -no-parse-first-line
	      Disable parsing of the first line of the main input file.

       -progname name
	      Pretend  to  be program name.  This affects both the format used
	      and the search paths.

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

       -shell-escape
	      Enable  the \write18{command} construct.	The command can be any
	      shell command.  This construct is normally disallowed for	 secu‐
	      rity reasons.

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

       -src-specials
	      Insert source specials into the DVI file.

       -src-specials where
	      Insert source specials in certain placed of the DVI file.	 where
	      is  a  comma-separated value list: cr, display, hbox, math, par,
	      parent, or vbox.

       -translate-file tcxname
	      Use the tcxname translation table to set the  mapping  of	 input
	      characters and re-mapping of output characters.

       -default-translate-file tcxname
	      Like  -translate-file  except  that  a %& line can overrule this
	      setting.

       -version
	      Print version information and exit.

ENVIRONMENT
       See the Kpathsearch library documentation  (the	`Path  specifications'
       node)  for  precise  details of how the environment variables are used.
       The kpsewhich utility can be used to query the values of the variables.

       One caveat: In most e-TeX formats, you cannot use ~ in a	 filename  you
       give  directly to e-TeX, because ~ is an active character, and hence is
       expanded, not taken as part of the filename.  Other programs,  such  as
       Metafont, do not have this problem.

       TEXMFOUTPUT
	      Normally,	 e-TeX puts its output files in the current directory.
	      If any output file cannot be opened there, it tries to  open  it
	      in the directory specified in the environment variable TEXMFOUT‐
	      PUT.  There is no default value for that variable.  For example,
	      if you say etex paper and the current directory is not writable,
	      if TEXMFOUTPUT has the value  /tmp,  e-TeX  attempts  to	create
	      /tmp/paper.log (and /tmp/paper.dvi, if any output is produced.)

       TEXINPUTS
	      Search  path for \input and \openin files.  This should probably
	      start with ``.'', so that user files  are	 found	before	system
	      files.   An empty path component will be replaced with the paths
	      defined in the texmf.cnf file.  For example,  set	 TEXINPUTS  to
	      ".:/home/usr/tex:"   to	prepend	  the	current	 direcory  and
	      ``/home/user/tex'' to the standard search path.

       TEXFORMATS
	      Search path for format files.

       TEXPOOL
	      search path for etex internal strings.

       TEXEDIT
	      Command template for switching to editor.	 The default,  usually
	      vi, is set when e-TeX is compiled.

       TFMFONTS
	      Search path for font metric (.tfm) files.

FILES
       The location of the files mentioned below varies from system to system.
       Use the kpsewhich utility to find their locations.

       etex.pool
	      Text file containing e-TeX's internal strings.

       texfonts.map
	      Filename mapping definitions.

       *.tfm  Metric files for e-TeX's fonts.

       *.fmt  Predigested e-TeX format (.fmt) files.

NOTES
       Starting with version 1.40, pdfTeX incorporates the  e-TeX  extensions,
       so  in  this  installation eTeX is just a symbolic link to pdfTeX.  See
       pdftex(1).  This manual page is not meant to be exhaustive.   The  com‐
       plete  documentation for this version of e-TeX can be found in the info
       manual Web2C: A TeX implementation.

BUGS
       This version of e-TeX implements a number of optional  extensions.   In
       fact,  many  of these extensions conflict to a greater or lesser extent
       with the definition of e-TeX.  When such extensions  are	 enabled,  the
       banner  printed when e-TeX starts is changed to print e-TeXk instead of
       e-TeX.

       This version of e-TeX fails to trap arithmetic overflow when dimensions
       are added or subtracted.	 Cases where this occurs are rare, but when it
       does the generated DVI file will be invalid.

SEE ALSO
       pdftex(1), tex(1), mf(1).

AUTHORS
       e-TeX was developed by Peter Breitenlohner (and the NTS team).

       TeX was designed by Donald E. Knuth, who implemented it using his  sys‐
       tem  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  to C system
       (web2c), originally written by Tomas Rokicki and Tim Morgan.

       The encTeX extensions were written by Petr Olsak.

pdftex 1.40			7 January 2007			       ETEX(1)
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