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 charac-ter character
ter (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 uppercase 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 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 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 charac-ter character
ter 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 correspond-ing corresponding
ing 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' subdirectory 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' sub-directory subdirectory
directory of the default font directory is searched.
-in Generate an italic correction for each character so that the character's width plus the char-acter's character's
acter'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 correc-tion correction
tion greater than the italic correction, use a subscript correction equal to the italic cor-rection correction
rection 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 char-acter's character's
acter'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 distrib-uted distributed
uted 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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