Ubuntu Manpage: hpftodit - create font description files for use with groff and grolj4

Name

       hpftodit - create font description files for use with groff and grolj4

Synopsis

       hpftodit [-aqs] [-i n] tfm-file map-file font-description

       hpftodit -d tfm-file [map-file]

       hpftodit --help

       hpftodit -v
       hpftodit --version

Description

hpftodit creates a font description file for use with a Hewlett-Packard LaserJet 4-series
(or newer) printer with the grolj4(1) output driver of groff(1), using data from an HP
tagged font metric (TFM) file. tfm-file is the name of the font's TFM file; Intellifont
and TrueType TFM files are supported, but symbol set TFM files are not. map-file is a
file giving the groff special character identifiers for glyphs 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 glyph's MSL (Master Symbol List) number, u is a
hexadecimal integer giving its Unicode character code, and c1, c2, ... are its groff
glyph names (see groff_char(7) for a list). The values can be separated by any number of
spaces and/or tabs. The Unicode value must use uppercase hexadecimal digits A–F, and must
lack a leading “0x”, “u”, or “U+”. Unicode values corresponding to composite glyphs are
decomposed; that is “u00C0” becomes “u0041_0300”. A glyph without a groff special
character identifier may be named uXXXX if the glyph corresponds to a Unicode value, or as
an unnamed glyph “---”. If the given Unicode value is in the Private Use Area (PUA)
(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, as in
3 0023 # # number sign
or
3 0023 # sh # number sign
whereas in
3 0023 sh # # number sign
the first “#” is interpreted as the beginning of the comment.

Output is written in groff_font(5) format to font-description, a file named for the
intended groff font name; if this operand is “-”, the font description is written to the
standard output stream.

If the -i option is used, hpftodit automatically will generate an italic correction, a
left italic correction, and a subscript correction for each glyph (the significance of
these parameters is explained in groff_font(5)).

Options

--help displays a usage message, while -v and --version show version information; all exit
afterward.

-a Include glyphs in the TFM file that are not included in map-file. A glyph with
corresponding 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) is also included as an unnamed glyph.

This option provides a simple means of adding Unicode-named and unnamed glyphs to a
font without 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 it, only the “text” symbol sets are searched for matching glyphs;
with it, only the “mathematical” symbol sets are searched. Nonetheless,
restricting the symbol sets searched isn't very selective—many glyphs are placed in
both regular and special fonts. Normally, -a should be used only as a last resort.

-d Dump information about the TFM file to the standard output stream; use this to
ensure that a TFM file is a proper match for a font, and that its contents 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 output-font is ignored if given.

-i n Generate an italic correction for each glyph so that its width plus its italic
correction is equal to n thousandths of an em plus the amount by which the right
edge of the glyphs's bounding box is to the right of its origin. If a negative
italic correction would result, 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 a subscript
correction greater than the italic correction would result, use a subscript
correction equal to the italic correction instead.

Also generate a left italic correction for each glyph equal to n thousandths of an
em plus the amount by which the left edge of the glyphs's bounding box is to the
left of its 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) usually is a reasonable choice.

-q Suppress warnings about glyphs in the map file that were not found in the TFM file.
Warnings 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 stream.

-s Add the special directive to the font description file, affecting the order in
which HP symbol sets are searched for each glyph. Without this option, the “text”
sets are searched before the “mathematical” symbol sets. With it, the search order
is reversed.

Files

       /usr/share/groff/1.23.0/font/devlj4/DESC
              describes the lj4 output device.

       /usr/share/groff/1.23.0/font/devlj4/F
              describes the font known as F on device lj4.

       /usr/share/groff/1.23.0/font/devlj4/generate/Makefile
              is  a  make(1)  script  that uses hpftodit(1) to prepare the groff font description
              files above from HP TFM data; in can be used to regenerate them in  the  event  the
              TFM files are updated.

       /usr/share/groff/1.23.0/font/devlj4/generate/special.awk
              is  an awk(1) script that corrects the Intellifont-based height metrics for several
              glyphs in the S (special) font for TrueType CG Times used in the HP  LaserJet  4000
              and later.

       /usr/share/groff/1.23.0/font/devlj4/generate/special.map
       /usr/share/groff/1.23.0/font/devlj4/generate/symbol.map
       /usr/share/groff/1.23.0/font/devlj4/generate/text.map
       /usr/share/groff/1.23.0/font/devlj4/generate/wingdings.map
              map  MSL  indices  and  HP  Unicode  PUA  assignments  to  groff  special character
              identifiers.

Name

Synopsis

Description

Options

Files

See also