hpftodit(1) — Linux manual page

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hpftodit(1)                General Commands Manual               hpftodit(1)

Name         top

       hpftodit - create font description files for use with groff -Tlj4

Synopsis         top

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

       hpftodit -d tfm-file [map-file]

       hpftodit --help

       hpftodit -v
       hpftodit --version

Description         top

       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 (Master Symbol List) num‐
       ber of the character, u is a hexadecimal integer giving the Unicode
       value of the character, and c1, c2, ...  are the groff names of the
       character (see groff_char(7) for a list).  The values can be sepa‐
       rated by any whitespace; the Unicode value must use uppercase digits
       A–F, and must be without a leading ‘0x’, ‘u’, or ‘U+’.  Unicode val‐
       ues corresponding to composite glyphs are decomposed; 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 Unicode 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 ‘#’ follow‐
       ing 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 com‐
       ment is included, e.g.,
              3   0023   #   # number sign
              3   0023   # sh   # number sign
       rather than
              3   0023   sh #   # number sign
       which will treat the first ‘#’ as the beginning of the comment.

       The groff font file is written to the specified output-font; if this
       operand is ‘-’, the font file is written to the standard output.

       The -s option should be given if the font is special (a font is “spe‐
       cial” if groff 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 groff 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 correc‐
       tion for each character (the significance of these parameters is
       explained in groff_font(5)).

Options         top

       -a     Include characters 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) also is 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 the -s option,
              only the “text” symbol sets are searched for matching glyphs;
              with the -s option, 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, 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

              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.

       -q     Suppress warnings about characters 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.

       -v     Print the hpftodit version number and exit.

       -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 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 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

              This option normally is needed only with italic or oblique
              fonts; a value of 50 (0.05 em) usually is a reasonable choice.

Files         top

              device description file

              Font description file for font F

              symbol mapping files

See Also         top

       groff(1), groff_diff(1), grolj4(1), groff_font(5), lj4_font(5)

COLOPHON         top

       This page is part of the groff (GNU troff) project.  Information
       about the project can be found at 
       ⟨http://www.gnu.org/software/groff/⟩.  If you have a bug report for
       this manual page, see ⟨http://www.gnu.org/software/groff/⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://git.savannah.gnu.org/git/groff.git⟩ on 2020-07-14.  (At that
       time, the date of the most recent commit that was found in the repos‐
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       of the original manual page), send a mail to man-pages@man7.org

groff            16 May 2020                     hpftodit(1)

Pages that refer to this page: groff(1)lj4_font(5)