1TFMTODIT(1) General Commands Manual TFMTODIT(1)
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6 tfmtodit - create font files for use with groff -Tdvi
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9 tfmtodit [-s] [-g gf_file] [-k skewchar] tfm_file map_file font
10 tfmtodit --help
12 tfmtodit -v
14 tfmtodit --version
15
17 tfmtodit creates a font file for use with groff -Tdvi. tfm_file is the
18 name of the TeX font metric file for the font. map_file is a file giv‐
19 ing the groff names for characters in the font; this file should con‐
20 sist of a sequence of lines of the form:
21 n c1 c2 ...
23 where n is a decimal integer giving the position of the character in
25 the font, and c1, c2,... are the groff names of the character. If a
26 character has no groff names but exists in the tfm file, then it will
27 be put in the groff font file as an unnamed character. font is the
28 name of the groff font file. The groff font file is written to font.
29 The -s option should be given if the font is special (a font is special
31 if troff should search it whenever a character is not found in the cur‐
32 rent font.) If the font is special, it should be listed in the fonts
33 command in the DESC file; if it is not special, there is no need to
34 list it, since troff can automatically mount it when it's first used.
35 To do a good job of math typesetting, groff requires font metric infor‐
37 mation not present in the tfm file. The reason for this is that TeX
38 has separate math italic fonts whereas groff uses normal italic fonts
39 for math. The additional information required by groff is given by the
40 two arguments to the math_fit macro in the Metafont programs for the
41 Computer Modern fonts. In a text font (a font for which math_fitting
42 is false), Metafont normally ignores these two arguments. Metafont can
43 be made to put this information in the gf file by loading the following
44 definition after cmbase when creating cm.base:
45 def ignore_math_fit(expr left_adjustment,right_adjustment) =
47 special "adjustment";
48 numspecial left_adjustment*16/designsize;
49 numspecial right_adjustment*16/designsize;
50 enddef;
51 For the EC font family, load the following definition after exbase (it
53 is probably easiest to patch exbase.mf locally):
54 def ignore_math_fit(expr left_adjustment,right_adjustment) =
56 ori_special "adjustment";
57 ori_numspecial left_adjustment*16/designsize;
58 ori_numspecial right_adjustment*16/designsize;
59 enddef;
60 The gf file created using this modified cm.base or exbase should be
62 specified with the -g option. The -g option should not be given for a
63 font for which math_fitting is true.
64
66 Whitespace is permitted between a command-line option and its argument.
67 -v Print the version number.
69 -s The font is special. The effect of this option is to add the
71 special command to the font file.
72 -kn The skewchar of this font is at position n. n should be an in‐
74 teger; it may be given in decimal, or with a leading 0 in octal,
75 or with a leading 0x in hexadecimal. The effect of this option
76 is to ignore any kerns whose second component is the specified
77 character.
78 -ggf_file
80 gf_file is a gf file produced by Metafont containing special and
81 numspecial commands giving additional font metric information.
82
84 /usr/share/groff/1.22.4/font/devdvi/DESC
85 Device description file.
86 /usr/share/groff/1.22.4/font/devdvi/F
88 Font description file for font F.
89
91 groff(1), grodvi(1), groff_font(5)
92groff 1.22.4 20 January 2022 TFMTODIT(1)