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TFMTODIT(1)                                                                                      TFMTODIT(1)

       tfmtodit - create font files for use with groff -Tdvi

       tfmtodit [ -sv ] [ -ggf_file ] [ -kskewchar ] tfm_file map_file font

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

       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;

       For  the  EC font family, load the following definition after exbase (it is probably easiest to patch 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;

       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.

       -v     Print the version number.

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

       -kn    The skewchar of this font is at position n.  n should be an integer; it may be given in  deci-mal, decimal,
              mal,  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.

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

       /usr/share/groff/1.19.2/font/devdvi/DESC  Device description file.

       /usr/share/groff/1.19.2/font/devdvi/F     Font description file for font F.

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

Groff Version 1.19.2                          26 February 2002                                   TFMTODIT(1)

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