Provided by: groff_1.22.3-7_i386 bug


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


       hpftodit [ -adqsv ] [ -in ] tfm_file map_file font

       It  is  possible  to  have  whitespace  between  the  -i option and its


       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 giving 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 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 ‘#’ 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


              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 specified 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

       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)).


       -a     Include characters in the TFM file that are not included in  the
              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

              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

       -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

       -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

       -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  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 negative.

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


       /usr/share/groff/1.22.3/font/devlj4/DESC            Device description

       /usr/share/groff/1.22.3/font/devlj4/F               Font description
                                                           file for font F.

       /usr/share/groff/1.22.3/font/devlj4/generate/*.map  Symbol mapping


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


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