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AFMTODIT(1)							   AFMTODIT(1)

NAME
       afmtodit - create font files for use with groff -Tps

SYNOPSIS
       afmtodit [-ckmnsvx] [-a n] [-d desc_file] [-e enc_file] [-f inter‐
		nal_name] [-i n] afm_file map_file font

       The whitespace between a	 command  line	option	and  its  argument  is
       optional.

DESCRIPTION
       afmtodit creates a font file for use with groff and grops.  afmtodit is
       written in perl; you must have perl version 5.004 or newer installed in
       order to run afmtodit.

       afm_file is the AFM (Adobe Font Metric) file for the font.

       map_file	 is a file that says which groff character names map onto each
       PostScript character name; this file should contain a sequence of lines
       of the form

	      ps_char groff_char

       where ps_char is the PostScript name of the character and groff_char is
       the groff name of the character (as used in the groff font file).   The
       same ps_char can occur multiple times in the file; each groff_char must
       occur at most once.  Lines starting with # and blank lines are ignored.
       If the file isn't found in the current directory, it is searched in the
       `devps/generate' subdirectory of the default font directory.

       If a PostScript character is not mentioned in map_file, and  a  generic
       groff  glyph  name  can't  be  deduced using the Adobe Glyph List (AGL,
       built into afmtodit), then afmtodit puts the PostScript character  into
       the  groff font file as an unnamed character which can only be accessed
       by the \N escape sequence in troff.  In particular, this	 is  true  for
       glyph  variants	like `foo.bar'; all glyph names containing one or more
       periods are mapped to unnamed entities.	If option -e is not specified,
       the  encoding  defined in the AFM file (i.e., entries with non-negative
       character codes) is used.  Please refer to section `Using  Symbols'  in
       the  groff  info	 file  which  describes how groff glyph names are con‐
       structed.

       Characters not encoded in the AFM file (i.e., entries which have -1  as
       the  character code) are still available in groff; they get glyph index
       values greater than 255 (or greater than	 the  biggest  character  code
       used  in the AFM file in the unlikely case that it is greater than 255)
       in the groff font file.	Glyph indices of  unencoded  characters	 don't
       have a specific order; it is best to access them with glyph names only.

       The groff font file will be output to a file called font.

       If  there is a downloadable font file for the font, it may be listed in
       the file /usr/share/groff/1.20.1/font/devps/download; see grops(1).

       If the -i option is  used,  afmtodit  will  automatically  generate  an
       italic  correction, a left italic correction and a subscript correction
       for each character (the significance of these parameters	 is  explained
       in  groff_font(5));  these  parameters  may be specified for individual
       characters by adding to the afm_file lines of the form:

	      italicCorrection ps_char n
	      leftItalicCorrection ps_char n
	      subscriptCorrection ps_char n

       where ps_char is the PostScript name of the character,  and  n  is  the
       desired	value  of the corresponding parameter in thousandths of an em.
       These parameters are normally  needed  only  for	 italic	 (or  oblique)
       fonts.

OPTIONS
       -an    Use  n  as the slant parameter in the font file; this is used by
	      groff in the positioning of accents.  By default	afmtodit  uses
	      the  negative of the ItalicAngle specified in the afm file; with
	      true italic fonts it is sometimes desirable to use a slant  that
	      is  less	than this.  If you find that characters from an italic
	      font have accents placed too far to the right  over  them,  then
	      use the -a option to give the font a smaller slant.

       -c     Include  comments	 in  the font file in order to identify the PS
	      font.

       -ddesc_file
	      The device description file is desc_file rather than the default
	      DESC.  If not found in the current directory, the `devps' subdi‐
	      rectory of the default font directory is searched (this is  true
	      for  both	 the  default device description file and a file given
	      with option -d).

       -eenc_file
	      The PostScript font should be  reencoded	to  use	 the  encoding
	      described	 in  enc_file.	The format of enc_file is described in
	      grops(1).	 If not found in the current  directory,  the  `devps'
	      subdirectory of the default font directory is searched.

       -fname The internal name of the groff font is set to name.

       -in    Generate	an  italic  correction	for each character so that the
	      character's width plus  the  character's	italic	correction  is
	      equal  to	 n  thousandths	 of an em plus the amount by which the
	      right edge of the character's bounding box is to	the  right  of
	      the  character's	origin.	  If  this  would result in a negative
	      italic correction, use a zero italic correction instead.

	      Also generate a subscript correction equal to the product of the
	      tangent of the slant of the font and four fifths of the x-height
	      of the font.  If this would result  in  a	 subscript  correction
	      greater  than  the italic correction, use a subscript correction
	      equal to the italic correction instead.

	      Also generate a left italic correction for each character	 equal
	      to n thousandths of an em plus the amount by which the left edge
	      of the character's bounding box is to the left  of  the  charac‐
	      ter's origin.  The left italic correction may be negative unless
	      option -m is given.

	      This option is normally needed only  with	 italic	 (or  oblique)
	      fonts.  The font files distributed with groff were created using
	      an option of -i50 for italic fonts.

       -k     Omit any kerning data from the groff font.  This should be  used
	      only for mono-spaced fonts.

       -m     Prevent  negative	 left  italic  correction  values.  Roman font
	      files distributed with groff were created with -i0 -m to improve
	      spacing with eqn(1).

       -n     Don't  output  a ligatures command for this font.	 Use this with
	      constant-width fonts.

       -s     The font is special.  The effect of this option is  to  add  the
	      special command to the font file.

       -v     Print version.

       -x     Don't use the built-in Adobe Glyph List.

FILES
       /usr/share/groff/1.20.1/font/devps/DESC
	      Device description file.

       /usr/share/groff/1.20.1/font/devps/F
	      Font description file for font F.

       /usr/share/groff/1.20.1/font/devps/download
	      List of downloadable fonts.

       /usr/share/groff/1.20.1/font/devps/text.enc
	      Encoding used for text fonts.

       /usr/share/groff/1.20.1/font/devps/generate/textmap
	      Standard mapping.

SEE ALSO
       groff(1), grops(1), groff_font(5), perl(1)

       The groff info file, section `Using Symbols'.

Groff Version 1.20.1		9 January 2009			   AFMTODIT(1)
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