evirtex man page on BSDOS

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ETEX(1)								       ETEX(1)

NAME
       etex, einitex, evirtex - extended TeX

SYNOPSIS
       etex [options] [commands]

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

       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 symlinks to the
       etex executable.

       e-TeX's handling of its command-line arguments is similar  to  that  of
       TeX.

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

       --efmt 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.

       --help Print help message and exit.

       --ini  Be einitex, for dumping formats; this is implicitly true if  the
	      program is called as einitex.

       --interaction mode
	      Sets  the	 interaction  mode.  The mode can be one of 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.

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

       --maketex fmt
	      Enable mktexfmt, where fmt must be one of tex or tfm.

       --mltex
	      Enable MLTeX extensions.

       --no-maketex fmt
	      Disable mktexfmt, where fmt must be one of tex or tfm.

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

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

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

       --translate-file tcxname
	      Use the tcxname translation table.

       --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 tex 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.

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

       TEXFORMATS
	      Search path for format files.

       TEXPOOL
	      search path for einitex internal strings.

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

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

       etex.pool
	      Encoded text of e-TeX's messages.

       texfonts.map
	      Filename mapping definitions.

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

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

BUGS
       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
       tex(1), mf(1), undump(1).

Web2C 7.3.1			 29 March 1999			       ETEX(1)
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