Provided by: groff_1.22.3-10_amd64 bug


       tfmtodit - create font files for use with groff -Tdvi


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


       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

       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.


       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.

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


       /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.


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


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