tfmtodit man page on Archlinux

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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

       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 giv‐
       ing  the	 groff names for characters in the font; this file should con‐
       sist 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 cur‐
       rent 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 infor‐
       mation  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

       -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.

	      Device description file.

	      Font description file for font F.

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

Groff Version 1.22.2		7 February 2013			   TFMTODIT(1)

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