tfmtodit(1)


NAME

   tfmtodit - create font files for use with groff -Tdvi

SYNOPSIS

   nr a 1
   tfmtodit [ -sv ] [ -ggf_file ] [ -kskewchar ] tfm_file map_file font

DESCRIPTION

   tfmtodit creates a font file for use with groff -Tdvi.  tfm_file is the
   name of the TeX font metric file for the font.  map_file is a file
   giving the groff names for characters in the font; this file should
   consist of a sequence of lines of the form:

          n c1 c2 ...

   where n is a decimal integer giving the position of the character in
   the font, and c1, c2,...  are the groff names of the character.  If a
   character has no groff names but exists in the tfm file, then it will
   be put in the groff font file as an unnamed character.  font is the
   name of the groff font file.  The groff font file is written to font.

   The -s option should be given if the font is special (a font is special
   if troff should search it whenever a character is not found in the
   current font.)  If the font is special, it should be listed in the
   fonts command in the DESC file; if it is not special, there is no need
   to list it, since troff can automatically mount it when it's first
   used.

   To do a good job of math typesetting, groff requires font metric
   information not present in the tfm file.  The reason for this is that
   TeX has separate math italic fonts whereas groff uses normal italic
   fonts for math.  The additional information required by groff is given
   by the two arguments to the math_fit macro in the Metafont programs for
   the Computer Modern fonts.  In a text font (a font for which
   math_fitting is false), Metafont normally ignores these two arguments.
   Metafont can be made to put this information in the gf file by loading
   the following definition after cmbase when creating cm.base:

          def ignore_math_fit(expr left_adjustment,right_adjustment) =
              special "adjustment";
              numspecial left_adjustment*16/designsize;
              numspecial right_adjustment*16/designsize;
              enddef;

   For the EC font family, load the following definition after exbase (it
   is probably easiest to patch exbase.mf locally):

          def ignore_math_fit(expr left_adjustment,right_adjustment) =
              ori_special "adjustment";
              ori_numspecial left_adjustment*16/designsize;
              ori_numspecial right_adjustment*16/designsize;
              enddef;

   The gf file created using this modified cm.base or exbase should be
   specified with the -g option.  The -g option should not be given for a
   font for which math_fitting is true.

OPTIONS

   It is possible to have whitespace between a command line option and its
   parameter.

   -v     Print the version number.

   -s     The font is special.  The effect of this option is to add the
          special command to the font file.

   -kn    The skewchar of this font is at position n.  n should be an
          integer; it may be given in decimal, or with a leading 0 in
          octal, or with a leading 0x in hexadecimal.  The effect of this
          option is to ignore any kerns whose second component is the
          specified character.

   -ggf_file
          gf_file is a gf file produced by Metafont containing special and
          numspecial commands giving additional font metric information.

FILES

   /usr/share/groff/1.22.3/font/devdvi/DESC
          Device description file.

   /usr/share/groff/1.22.3/font/devdvi/F
          Font description file for font F.

SEE ALSO

   groff(1), grodvi(1), groff_font(5)

COPYING

   Copyright  1989-2014 Free Software Foundation, Inc.

   Permission is granted to make and distribute verbatim copies of this
   manual provided the copyright notice and this permission notice are
   preserved on all copies.

   Permission is granted to copy and distribute modified versions of this
   manual under the conditions for verbatim copying, provided that the
   entire resulting derived work is distributed under the terms of a
   permission notice identical to this one.

   Permission is granted to copy and distribute translations of this
   manual into another language, under the above conditions for modified
   versions, except that this permission notice may be included in
   translations approved by the Free Software Foundation instead of in the
   original English.





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