tfmtodit creates a font file for use with
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 ...
n is a decimal integer giving the position of the character in the font,
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
-s option should be given if the font is special
(a font is
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 its 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
The font is special.
The effect of this option is to add the
special command to the font file.
The skewchar of this font is at position
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.