HPFTODIT(1) HPFTODIT(1)
NAME
hpftodit - create font description files for use with groff -Tlj4
SYNOPSIS
hpftodit [ -adqsv ] [ -in ] tfm_file map_file font
It is possible to have whitespace between the -i option and its parameter.
DESCRIPTION
hpftodit creates a font file for use with a Hewlett-Packard LaserJet 4-series (or newer) printer with
groff -Tlj4, using data from an HP tagged font metric (TFM) file. tfm_file is the name of the TFM
file for the font; Intellifont and TrueType TFM files are supported, but symbol set TFM files are
not. map_file is a file giving the groff names for characters in the font; this file should consist
of a sequence of lines of the form:
m u c1 c2 ... [ # comment ]
where m is a decimal integer giving the MSL number of the character, u is a hexadecimal integer giv-ing giving
ing the Unicode value of the character, and c1, c2, ... are the groff names of the character. The
values can be separated by any whitespace; the Unicode value must use uppercase digits A-F, and must
be without a leading `0x', `u', or `U+'. Unicode values corresponding to composite glyphs are decom-posed; decomposed;
posed; e.g., `u00C0' becomes `u0041_0300'. The name for a glyph without a groff name may be given as
uXXXX if the glyph corresponds to a Unicode value, or as an unnamed glyph `---'. If the given Uni-code Unicode
code value is in the Private Use Area (0xE000-0xF8FF), the glyph is included as an unnamed glyph.
Refer to groff_diff(1) for additional information about unnamed glyphs and how to access them.
Blank lines and lines beginning with `#' are ignored. A `#' following one or more groff names begins
a comment. Because `#' is a valid groff name, it must appear first in a list of groff names if a
comment is included, e.g.,
3 0023 # # number sign
or
3 0023 # sh # number sign
rather than
3 0023 sh # # number sign
which will treat the first `#' as the beginning of the comment.
font is the name of the groff font file. The groff font file is written to font; if font is speci-fied specified
fied as `-', the output is written to the standard output.
The -s option should be given if the font is special (a font is special if troff should search it
whenever a character is not found in the current font). If the font is special, it should be listed
in the fonts command in the DESC file; if it is not special, there is no need to list it, since troff
can automatically mount it when it's first used.
If the -i option is used, hpftodit automatically will 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)).
OPTIONS
-a Include characters in the TFM file that are not included in the map file. A glyph with corre-sponding corresponding
sponding Unicode value is given the name uXXXX; a glyph without a Unicode value is included as
an unnamed glyph `---'. A glyph with a Unicode value in the Private Use Area (0xE000-0xF8FF)
also is included as an unnamed glyph.
This option provides a simple means of adding Unicode-named and unnamed glyphs to a font with-out without
out including them in the map file, but it affords little control over which glyphs are placed
in a regular font and which are placed in a special font. The presence or absence of the -s
option has some effect on which glyphs are included: without the -s option, only the "text"
symbol sets are searched for matching glyphs; with the -s option, only the "mathematical" sym-bol symbol
bol sets are searched. Nonetheless, restricting the symbol sets searched isn't very selec-tive--many selective--many
tive--many glyphs are placed in both regular and special fonts. Normally, the -a option
should be used only as a last resort.
-d Dump information about the TFM file to the standard output; this option can be useful for
ensuring that a TFM file is a proper match for a font, and that the contents of the TFM file
are suitable. The information includes the values of important TFM tags, and a listing (by
MSL number for Intellifont TFM files or by Unicode value for TrueType TFM files) of the glyphs
included in the TFM file. The unit of measure `DU' for some tags indicates design units;
there are 8782 design units per em for Intellifont fonts, and 2048 design units per em for
TrueType fonts. Note that the accessibility of a glyph depends on its inclusion in a symbol
set; some TFM files list many glyphs but only a few symbol sets.
The glyph listing includes the glyph index within the TFM file, the MSL or Unicode value, and
the symbol set and character code that will be used to print the glyph. If map_file is given,
groff names are given for matching glyphs. If only the glyph index and MSL or Unicode value
are given, the glyph does not appear in any supported symbol set and cannot be printed.
With the -d option, map_file is optional, and font is ignored if given.
-q Suppress warnings about characters in the map file that were not found in the TFM file. Warn-ings Warnings
ings never are given for unnamed glyphs or by glyphs named by their Unicode values. This
option is useful when sending the output of hpftodit to the standard output.
-v Print the hpftodit version number.
-s The font is special. This option adds the special command to the font file, and affects the
order in which HP symbol sets are searched for each glyph. Without the -s option, the "text"
sets are searched before the "mathematical" symbol sets. With the -s option, the search order
is reversed.
-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 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.
This option normally is needed only with italic or oblique fonts; a value of 50 (0.05 em) usu-ally usually
ally is a reasonable choice.
FILES
/usr/share/groff/1.19.2/font/devlj4/DESC Device description file.
/usr/share/groff/1.19.2/font/devlj4/F Font description file for font F.
/usr/share/groff/1.19.2/font/devlj4/generate/*.map Symbol mapping files
SEE ALSO
groff(1), groff_diff(1), grolj4(1), groff_font(5), lj4_font(5)
Groff Version 1.19.2 14 January 2004 HPFTODIT(1)
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