tfmtodit(1) — Linux manual page

Name | Synopsis | Description | Options | Files | See also | COLOPHON

tfmtodit(1)              General Commands Manual             tfmtodit(1)

Name         top

       tfmtodit - adapt TeX Font Metrics files for groff -Tdvi

Synopsis         top

       tfmtodit [-s] [-g gf-file] [-k skew-char] tfm-file map-file font

       tfmtodit --help

       tfmtodit -v
       tfmtodit --version

Description         top

       tfmtodit creates a font file for use with the dvi output driver
       of groff(1).  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
              i c1 ... cn
       where i is a decimal integer giving the position of the character
       in the font, and c1 through cn are are the groff names of the
       character.  If a character has no groff names but exists in tfm-
       file, then it will be put in the groff font file as an unnamed
       character.  The groff font file is written to font.

       The -s option should be given if the font is “special”, meaning
       that groff should search it whenever a character is not found in
       the current font.  In that case, font should be listed as an
       argument to the fonts directive in the DESC file; if it is not
       special, there is no need to list it, since groff can
       automatically mount it when it is first used.

       To do a good job of math typesetting, groff requires font metric
       information not present in tfm-file.  This is because 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_fit is false), Metafont normally ignores these two
       arguments.  Metafont can be made to put this information into the
       GF (“generic font”) files it produces 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;
                  enddef;

       For the EC font family, load the following definition after
       exbase—it is probably easiest to patch exbase.mf 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;
                  enddef;
       The only difference from the previous example is the “ori_”
       prefix to “special” and “numspecial”.

       The GF file created using this modified cm.base or exbase.mf
       should be specified with the -g option, which should not be given
       for a font for which math_fit is true.

Options         top

       --help displays a usage message, while -v and --version show
       version information; all exit afterward.

       -g gf-file
              Use the gf-file produced by Metafont containing “special”
              and numspecial commands to obtain additional font metric
              information.

       -k skew-char
              The skew charcter of this font is at position skew-char.
              skew-char should be an integer; it may be given in
              decimal, with a leading 0 in octal, or with a leading 0x
              in hexadecimal.  Any kerns whose second component is skew-
              char are ignored.

       -s     Add the special directive to the generated file font.

Files         top

       /usr/local/share/groff/1.23.0/font/devdvi/DESC
              Device description file.

       /usr/local/share/groff/1.23.0/font/devdvi/F
              Font description file for font F.

See also         top

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

COLOPHON         top

       This page is part of the groff (GNU troff) project.  Information
       about the project can be found at 
       ⟨http://www.gnu.org/software/groff/⟩.  If you have a bug report
       for this manual page, see ⟨http://www.gnu.org/software/groff/⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://git.savannah.gnu.org/git/groff.git⟩ on 2021-04-01.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2021-03-29.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

groff 1.23.0.rc1.56-5346-dirt1y3 November 2020                 tfmtodit(1)

Pages that refer to this page: grodvi(1)groff(1)