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(web2c.info)TeX extensions

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TeX extensions
==============

  The base TeX program has been extended in many ways.  Here's a
partial list.  Please send information on extensions not listed here to
the address in Note: Reporting bugs.

e-TeX
     Adds many new primitives, including right-to-left typesetting.
     Available from <http://www.vms.rhbnc.ac.uk/e-TeX/> and
     `CTAN:/systems/e-tex'.

Omega
     Adds Unicode support, right-to-left typesetting, and more.
     Available from <http://www.ens.fr/omega> and `CTAN:/systems/omega'.

pdfTeX
     A variant of TeX that produces PDF instead of DVI files.  It also
     includes primitives for hypertext.  Available from
     `CTAN:/systems/pdftex'.

`TeX--XeT'
     Adds primitives and DVI opcodes for right-to-left typesetting (as
     used in Arabic, for example).  An old version for TeX 3.1415 is
     available from `CTAN:/systems/knuth/tex--xet'.  A newer version is
     included in e-TeX.

File-handling TeX
     Adds primitives for creating multiple DVI files in a single run;
     and appending to output files as well as overwriting.  Web2c
     implementation available in the distribution file
     `web2c/contrib/file-handling-tex'.