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tfmtodit(1)

tfmtodit(1)                 General Commands Manual                tfmtodit(1)

Name
       tfmtodit - adapt TeX Font Metrics files for use with groff and grodvi

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

       tfmtodit --help

       tfmtodit -v
       tfmtodit --version

Description
       tfmtodit  creates  a  font description file for use with groff(1)'s dvi
       output device.  tfm-file is the name of the TeX font  metric  file  for
       the font.  map-file assigns groff ordinary or special character identi‐
       fiers  to glyph indices in the font; it should consist of a sequence of
       lines of the form
              i c1 ... cn
       where i is a position of the glyph in  the  font  in  decimal,  and  c1
       through  cn  are  glyph  identifiers in the form used by groff font de‐
       scriptions.  If a glyph has no groff names but exists in  tfm-file,  it
       is  put in the groff font description file as an unnamed glyph.  Output
       is written in groff_font(5) format to font-description,  a  file  named
       for the intended groff font name.

       If  the font is “special”, meaning that groff should search it whenever
       a glyph is not found in the current font, use the -s  option  and  name
       font-description  in  the  fonts  directive in the output device's DESC
       file.

       To do a good job of math typesetting, groff requires font metric infor‐
       mation not present in tfm-file.  This is because TeX has separate  math
       italic fonts, whereas groff uses normal italic fonts for math.  The ad‐
       ditional 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;
       consider patching 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
       --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  informa‐
              tion.

       -k skew-char
              The skew character 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 font description file.

Files
       /usr/share/groff/1.23.0/font/devdvi/DESC
              describes the dvi output device.

       /usr/share/groff/1.23.0/font/devdvi/F
              describes the font known as F on device dvi.

       /usr/share/groff/1.23.0/font/devdvi/generate/ec.map
       /usr/share/groff/1.23.0/font/devdvi/generate/msam.map
       /usr/share/groff/1.23.0/font/devdvi/generate/msbm.map
       /usr/share/groff/1.23.0/font/devdvi/generate/tc.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texb.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texex.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texi.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texitt.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texmi.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texr.map
       /usr/share/groff/1.23.0/font/devdvi/generate/texsy.map
       /usr/share/groff/1.23.0/font/devdvi/generate/textex.map
       /usr/share/groff/1.23.0/font/devdvi/generate/textt.map
              map  glyph  indices  in  TeX fonts to groff ordinary and special
              character identifiers.  ec.map is used  for  TREC,  TIEC,  TBEC,
              TBIEC,  HREC,  HIEC,  HBEC, HBIEC, CWEC, and CWIEC; msam.map for
              SA; msbm.map for SB; tc.map for TRTC, TITC, TBTC,  TBITC,  HRTC,
              HITC, HBTC, HBITC, CWTC, and CWITC; texb.map for TB, HR, HI, HB,
              and  HBI;  texex.map for EX; texi.map for TI and TBI; texitt.map
              for CWI; texmi.map for MI; texr.map for  TR;  texsy.map  for  S;
              textex.map for SC; and textt.map for CW.

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



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   text/groff = Stability Uncommitted

NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at:
       https://github.com/oracle/solaris-userland

       The original community source was downloaded from:
       https://ftp.gnu.org/gnu/groff/groff-1.23.0.tar.gz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/groff.

groff 1.23.0                      2 July 2023                      tfmtodit(1)
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