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gsftopk - render a ghostscript font in TeX pk format
gsftopk [-i path] [-q] [-t] [--debug=n] [--dosnames] [--interpreter=path]
[--mapline=line] [--mapfile=file] [--quiet] [--test] [--help] [--version] font dpi
- font
- Name of the font to be created.
- dpi
- Desired resolution of the
font to be created, in dots per inch. This may be a real number.
gsftopk
is a program which calls up the ghostscript program gs(1)
to render a given
font at a given resolution. It packs the resulting characters into the
pk file format and writes them to a file whose name is formed from the
font name and the resolution (rounded to the nearest integer). The font
may be in any format acceptable to Ghostscript, including .pfa, .pfb, .gsf,
and .ttf files.
This program should normally be called by a script, such
as mktexpk, to create fonts on demand.
gsftopk obtains the character widths
from the .tfm file, which must exist in the standard search path. It also
must be able to find the font in a map file (such as psfonts.map), formatted
as in dvips(1)
), unless the --mapline option is used. The set of map files
is given by the --mapfile option, or in the files config.ps, $HOME/.dvipsrc,
and config.gsftopk (as would be used by dvips -Pgsftopk).
The following pk
"specials" are added at the end of the output file, to provide an internal
check on the contents of the file: "jobname=font", "mag=1", "mode=modeless",
and "pixels_per_inch=dpi". This is in accordance with the TeX Directory
Standard (TDS).
- --debug=n
- Set the Kpathsea debug flags according to
the integer n.
- --dosnames
- Use a name of the form font.pk instead of font.dpipk.
- -h, --help
- Print a brief help synopsis and exit.
- -i path, --interpreter=path
- Use
path as the Ghostscript interpreter.
- --mapfile=file
- Use file to look for the
map information for font. This should be the full name of the file (in other
words, no path searching algorithms are applied).
- --mapline=line
- Use line
instead of looking for an entry in a map file. The first word of line must
match font.
- -q, --quiet
- Operate quietly; i.e., without writing any messages to
the standard output.
- -t, --test
- Test run: return zero status if the font can
be found in the map file(s), and nonzero status if it cannot. If this option
is specified, then the dpi argument is optional (since the font will not
be generated).
- -v, --version
- Print the version number and exit.
- DVIPSRC
- Name of file to read instead of $HOME/.dvipsrc. This should
be the full name of the file (in other words, no path searching algorithms
are applied).
- GSFTOPKFONTS
- See TFMFONTS.
- GSFTOPKHEADERS
- See TEXPSHEADERS.
- PSHEADERS
- See TEXPSHEADERS.
- TEXCONFIG
- Colon-separated list of paths to
search for map files. An extra colon in the list will include the compiled-in
default paths at that point. A double slash will enable recursive subdirectory
searching at that point in the path.
- TFMFONTS
- Colon-separated list of paths
to search for the .tfm file associated with the font. Double slashes and
extra colons behave as with TEXCONFIG.
This information may also be supplied
by using the environment variables TFMFONTS
or GSFTOPKFONTS.
These environment
variables are checked in the order GSFTOPKFONTS,
TFMFONTS,
TFMFONTS;
the first one (if any) having a value is used.
- TEXPSHEADERS
- Colon-separated
list of paths to search for the Ghostscript driver file render.ps and for
any PostScript header or font files (.enc, .pfa, .pfb, .gsf, or .ttf files).
Double slashes and extra colons behave as with TEXCONFIG.
This information
may also be supplied by using the environment variables PSHEADERS
or
GSFTOPKHEADERS.
These environment variables are checked in the order GSFTOPKHEADERS,
TEXPSHEADERS,
PSHEADERS;
the first one (if any) having a value is
used.
- TFMFONTS
- See TFMFONTS.
In order to determine the set
of map files to be used and the path for finding PostScript files, gsftopk
reads, in order, the files config.ps, .dvipsrc, and config.gsftopk. The files
config.ps and config.gsftopk are searched for using the environment variable
TEXCONFIG,
the Kpathsea configuration file, or the compiled-in default
paths. The file .dvipsrc is searched for in the user's home directory.
These
files are in the same format as for dvips (as well as being in the same
locations). The entries used by gsftopk are as follows.
- H path
- Indicates
that the Ghostscript driver file render.ps and the PostScript header and
font files are to be searched for using path.
- p file
- Indicates that the
list of map files is to be erased and replaced by file.
- p +file
- Indicates
that file is to be added to the list of map files.
All other entries are
ignored.
This is similar to the handling of these options when running dvips
-Pgsftopk. For more details, see the Kpathsea manual.
gsftopk sometimes
has trouble with fonts with very complicated characters (such as the Seal
of the University of California). This is because gsftopk uses the charpath
operator to determine the bounding box of each character. If the character
is too complicated, then old versions of Ghostscript fail, causing gsftopk
to terminate with an error message
- Call to gs stopped by signal 10
(The
number may vary from system to system; it corresponds to a bus error or
a segmentation fault.) The best way to fix this bug is to install a current
version of ghostscript. As an alternative, gsftopk can be instructed to
use the bounding box provided with the font (if one exists) instead of
finding a bounding box for each character. To do this, include the string
- /usefontbbox true def
in the font map file; e.g.,
- ucseal """/usefontbbox
true def"""
This will not affect use of the font by dvips.
gs(1)
,
gftopk(1)
, tex(1)
, xdvi(1)
, dvips(1)
Written by Paul Vojta. This
program was inspired by Karl Berry's gsrenderfont.
Modified
by Yves Arrouye to use Karl Berry's Kpathsea library.
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