HPFTODIT(1)		    General Commands Manual		   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 parame-
       ter.

DESCRIPTION
       hpftodit creates a font file for	 use  with  a  Hewlett-Packard	Laser-
       Jet 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 dig-
       its 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

       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	 writ-
       ten  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 cur-
       rent 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 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  Pri-
	      vate  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 pres-
	      ence 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, restrict-
	      ing 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	 indi-
	      cates  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.  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.

       -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  charac-
	      ter'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.

FILES
       /usr/share/groff/1.22.2/font/devlj4/DESC		   Device description
							   file.

       /usr/share/groff/1.22.2/font/devlj4/F		   Font description
							   file for font F.

       /usr/share/groff/1.22.2/font/devlj4/generate/*.map  Symbol mapping
							   files

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



Groff Version 1.22.2		7 February 2013			   HPFTODIT(1)