


ETEX(1)                                                   ETEX(1)


NNAAMMEE
       etex, einitex, evirtex - extended TeX

SSYYNNOOPPSSIISS
       eetteexx [_o_p_t_i_o_n_s] [_c_o_m_m_a_n_d_s]

DDEESSCCRRIIPPTTIIOONN
       This  manual page is not meant to be exhaustive.  The com-
       plete documentation for this version of TeX can  be  found
       in the info file or manual _W_e_b_2_C_: _A _T_e_X _i_m_p_l_e_m_e_n_t_a_t_i_o_n.

       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  perpetuate  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 _c_o_m_p_a_t_i_b_i_l_i_t_y
       _m_o_d_e  it  is supposed to be completely interchangable with
       standard TeX.  In _e_x_t_e_n_d_e_d _m_o_d_e 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 eetteexx as
       the  extended  version  of  tteexx and eellaatteexx as the extended
       version of llaatteexx.  However, eeppllaaiinn is an exception to this
       rule.

       The  eeiinniitteexx and eevviirrtteexx commands are e-TeX's analogues to
       the iinniitteexx and vviirrtteexx  commands.   In  this  installation,
       they are symlinks to the eetteexx executable.

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

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

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

       ----hheellpp Print help message and exit.

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

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



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ETEX(1)                                                   ETEX(1)


              _b_a_t_c_h_m_o_d_e,  _n_o_n_s_t_o_p_m_o_d_e, _s_c_r_o_l_l_m_o_d_e, and _e_r_r_o_r_s_t_o_p_-
              _m_o_d_e.  The meaning of these modes is  the  same  as
              that of the corresponding \commands.

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

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

       ----kkppaatthhsseeaa--ddeebbuugg _b_i_t_m_a_s_k
              Sets  path  searching  debugging flags according to
              the bitmask.  See the _K_p_a_t_h_s_e_a manual for  details.

       ----mmaakkeetteexx _f_m_t
              Enable  mktex_f_m_t,  where  _f_m_t must be one of _t_e_x or
              _t_f_m.

       ----mmlltteexx
              Enable MLTeX extensions.

       ----nnoo--mmaakkeetteexx _f_m_t
              Disable mktex_f_m_t, where _f_m_t must be one of  _t_e_x  or
              _t_f_m.

       ----oouuttppuutt--ccoommmmeenntt _s_t_r_i_n_g
              Use  _s_t_r_i_n_g for the DVI file comment instead of the
              date.

       ----pprrooggnnaammee _n_a_m_e
              Pretend to be program _n_a_m_e.  This affects both  the
              format used and the search paths.

       ----sshheellll--eessccaappee
              Enable  the  \\wwrriittee1188{{_c_o_m_m_a_n_d}} construct.  The _c_o_m_-
              _m_a_n_d can be any Bourne shell  command.   This  con-
              struct is normally disallowed for security reasons.

       ----vveerrssiioonn
              Print version information and exit.

EENNVVIIRROONNMMEENNTT
       See the Kpathsearch library documentation (the `Path spec-
       ifications'  node) for precise details of how the environ-
       ment variables are used.  The  kkppsseewwhhiicchh  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 ,  do  not  have



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ETEX(1)                                                   ETEX(1)


       this problem.


       TEXMFOUTPUT
              Normally,  e-TeX  puts its output files in the cur-
              rent directory.   If  any  output  file  cannot  be
              opened  there, it tries to open it in the directory
              specified in the environment variable  TEXMFOUTPUT.
              There  is  no default value for that variable.  For
              example, if you  say  _t_e_x  _p_a_p_e_r  and  the  current
              directory  is  not writable, if TEXMFOUTPUT has the
              value _/_t_m_p, e-TeX attempts to create _/_t_m_p_/_p_a_p_e_r_._l_o_g
              (and _/_t_m_p_/_p_a_p_e_r_._d_v_i, if any output is produced.)

       TEXINPUTS
              Search  path  for  _\_i_n_p_u_t  and _\_o_p_e_n_i_n files.  This
              should probably start  with  ``.'',  so  that  user
              files are found before system files.

       TEXFONTS
              Search path for font metric (_._t_f_m) files.

       TEXFORMATS
              Search path for format files.

       TEXPOOL
              search path for eeiinniitteexx internal strings.

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

FFIILLEESS
       The location of the files mentioned below varies from sys-
       tem to system.  Use the kkppsseewwhhiicchh utility  to  find  their
       locations.

       _e_t_e_x_._p_o_o_l
              Encoded text of e-TeX's messages.

       _t_e_x_f_o_n_t_s_._m_a_p
              Filename mapping definitions.

       _*_._t_f_m  Metric files for e-TeX's fonts.

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

BBUUGGSS
       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 _D_V_I file
       will be invalid.





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ETEX(1)                                                   ETEX(1)


SSEEEE AALLSSOO
       tteexx(1), mmff(1), uunndduummpp(1).























































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