itp does not accept '-DDEVICE=XXX' option and '-o Filename%d' option to render output to named file(s) in a standard interchange format. about xpost HOT 9 CLOSED

we could use getlong-like options (see 
http://www.gnu.org/software/libc/manual/html_node/Getopt-Long-Option-Example.htm
l#Getopt-Long-Option-Example)

so the use of itp would be :

itp [options] -o foo.pgm foo.ps

with options :

-h or --help
-v or --version
-d the_device or --device the device

we can add more options in that issue

The short-form -d should be for definitions, so it's not actually any
shorter. To specify a device, it's

 -dDEVICE=???

Then the initgraphics operator will look for that definition to open the
device.

The above options are not yet available, but as of revision 8929337c8597 
(http://code.google.com/p/xpost/source/detail?r=8929337c859763bce5825d581d39808e
4e5ca48e), you can get a pgm file of the graphics output by defining 
/OutputFileName. Eg.

  /OutputFileName (out.pgm)
  loadgraphics
  0 0 moveto
  50 50 lineto
  0 setlinewidth %currently only supports zero-width lines
  stroke
  showpage

Be sure to make your terminal really big, because it's a 50x50 text dump of the 
image.

Whoops! Jumped tracks there. You'll see the text dump if you DON'T specify a 
file as shown. If you specify a file, it writes to the file and does not print 
the text dump to the screen.

So. The options are implemented (thanks Vincent). But the graphics code doesn't 
make use of it. The main function needs to make definitions for the graphics 
code to find (or not, for default behavior).

I've connected the device option '-d' to the code that instantiates the device. 
Need to deal with the filename now.

Using the filename is implemented now. But the background is black instead of 
white.