afmtodit - Online in the Cloud

PROGRAM:

NAME

afmtodit - create font files for use with groff -Tps and -Tpdf

SYNOPSIS

afmtodit [ -ckmnsvx ] [ -a n ] [ -d desc_file ] [ -e enc_file ] [ -f internal_name ]
[ -i n ] [ -o out_file ] 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, 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 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 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, 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/1.22.3/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 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’ 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 character'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.

-oout_file
The output file is out_file instead of font.

-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.

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