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GNU troff text-formatting system


This package contains optional components of the GNU troff text-formatting system. The core package, groff-base, contains the traditional tools like troff, nroff, tbl, eqn, and pic. This package contains additional devices and drivers for output to DVI, HTML (when recommended packages are installed - see below), PDF, HP LaserJet printers, and Canon CAPSL LBP-4 and LBP-8 printers.

The X75, X75-12, X100, and X100-12 devices, which allow groff output to be conveniently viewed on an X display using the standard X11 fonts, are now included here. They were previously in a separate package, groff-x11.

Besides these, the groff package contains man pages describing the language and its macro sets, info documentation, and a number of supplementary programs:

 - gxditview, which is used to display the output of the X* devices, and
   can also be used to view PostScript output from groff;
 - grn, a preprocessor for pictures in the 'gremlin' format;
 - tfmtodit, which creates font files for use with 'groff -Tdvi';
 - hpftodit, which creates font files for use with 'groff -Tlj4';
 - afmtodit, which creates font files for use with 'groff -Tps';
 - refer, which preprocesses bibliographic references for use with groff;
 - indxbib, which creates inverted indices for bibliographic databases used
   by 'refer';
 - lkbib and lookbib, which search bibliographic databases;
 - addftinfo, which adds metric information to troff font files for use
   with groff;
 - pfbtops, which translates a PostScript font in .pfb format to ASCII for
   use with groff;
 - mmroff, a simple groff preprocessor which expands references in mm;
 - pic2graph, which converts PIC diagrams into cropped image files;
 - eqn2graph, which converts EQN equations into cropped image files;
 - pdfmom, which runs 'groff -mom' to produce PDFs.

All the standard macro packages are supported.

Some facilities only work if certain recommended packages are installed:

 - ghostscript, netpbm, psutils: required for HTML output;
 - imagemagick: required for the pic2graph and eqn2graph programs;
 - libpaper1: paper size detection in dvi, lbp, lj4, and ps devices (falls
   back to a4 if not installed);
 - perl: required for PDF output and for the chem preprocessor.

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