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AFMTODIT(1)							   AFMTODIT(1)

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

SYNOPSIS
       afmtodit [-mnsvx] [-a n] [-d desc_file] [-e enc_file] [-i n] afm_file
		map_file font

       The whitespace between an 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 named as uniXXXX (XXXX are four upper‐
       case  hexadecimal  digits),  and	 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.  If option -e is not spec‐
       ified, the encoding defined in the AFM file (i.e.,  entries  with  non-
       negative character codes) is used.  Please refer to section `Using Sym‐
       bols' in the groff info file which describes how groff glyph names  are
       constructed.

       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/1.19.2/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.

       -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.

       -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.

       -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/1.19.2/font/devps/DESC
	      Device description file.

       /usr/share/groff/1.19.2/font/devps/F
	      Font description file for font F.

       /usr/share/groff/1.19.2/font/devps/download
	      List of downloadable fonts.

       /usr/share/groff/1.19.2/font/devps/text.enc
	      Encoding used for text fonts.

       /usr/share/groff/1.19.2/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 1.19.2	       13 February 2005			   AFMTODIT(1)
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