AFMTODIT(1) General Commands Manual AFMTODIT(1)
NAME
afmtodit - create font files for use with groff -Tps and -Tpdf
SYNOPSIS
afmtodit [-ckmnsx] [-a n] [-d desc-file] [-e enc-file] [-f internal-
name] [-i n] [-o output-file] afm-file map-file font
afmtodit -v
DESCRIPTION
afmtodit creates a font file for use with groff, grops, and gropdf.
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 ig-
nored. If the file isn't found in the current directory, it is
searched for in the devps/generate subdirectory of the default font di-
rectory.
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 a roff document. In particular, this is
true for glyph variants named in the form “foo.bar”; all glyph names
containing one or more periods are mapped to unnamed entities. If op-
tion -e is not specified, the encoding defined in the AFM file (i.e.,
entries with non-negative character codes) is used. Refer to section
“Using Symbols” in Groff: The GNU Implementation of troff, the groff
Texinfo manual, 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 in-
dex 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, unless the -o
option is used.
If there is a downloadable font file for the font, it may be listed in
the file /usr/share/groff/1.22.4/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 de-
sired value of the corresponding parameter in thousandths of an em.
These parameters are normally needed only for italic (or oblique)
fonts.
OPTIONS
Whitespace is permitted between a command-line option and its argument.
-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 Post-
Script 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 de-
scribed in enc-file. The format of enc-file is described in
grops(1). If not found in the current directory, the devps sub-
directory 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.
-ooutput-file
The output file is output-file instead of font.
-k Omit any kerning data from the groff font; use only for mono-
spaced (constant-width) 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 with mono-
spaced (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 and exit.
-x Don't use the built-in Adobe Glyph List.
FILES
/usr/share/groff/1.22.4/font/devps/DESC
Device description file.
/usr/share/groff/1.22.4/font/devps/F
Font description file for font F.
/usr/share/groff/1.22.4/font/devps/download
List of downloadable fonts.
/usr/share/groff/1.22.4/font/devps/text.enc
Encoding used for text fonts.
/usr/share/groff/1.22.4/font/devps/generate/textmap
Standard mapping.
SEE ALSO
Groff: The GNU Implementation of troff, by Trent A. Fisher and Werner
Lemberg, is the primary groff manual. Section “Using Symbols” may be
of particular note. You can browse it interactively with “info
'(groff)Using Symbols'”.
groff(1), gropdf(1), grops(1), groff_font(5), perl(1)
groff 1.22.4 7 March 2023 AFMTODIT(1)
Generated by dwww version 1.15 on Thu Jun 20 14:16:51 CEST 2024.