ETEX(1)                                                                ETEX(1)


       etex, einitex, evirtex - extended TeX


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


       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.


       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

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

              Disable printing error messages in the file:line:error style.

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

              Exit with an error code when an error is encountered during pro-

       -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.

              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

       -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.

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

              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.

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

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

              Disable  the  \write18{command} construct, even if it is enabled
              in the texmf.cnf file.

              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

              Print version information and exit.


       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.

              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.)

              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.

              Search path for format files.

              search path for etex internal strings.

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

              Search path for font metric (.tfm) files.


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

              Text file containing e-TeX’s internal strings.
              Filename mapping definitions.

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

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


       This manual page is not meant to be exhaustive.  The complete  documen-
       tation for this version of e-TeX can be found in the info manual Web2C:
       A TeX implementation.


       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

       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.


       tex(1), mf(1).


       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.

Web2C 7.5.4                     21 August 2004                         ETEX(1)

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