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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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