[Open Babel] How do I add multiple properties to SDF output?

[A. H. <ab...@cs...>]

How do I add multiple properties to SDF output?  As you can see below,
it seems that only the last property is recognized if I try putting
multiple --property options, whereas if I try to set multiple property
pairs, they get concatenated together.

$ ~/opt/openbabel-2.3.0/openbabel-install/bin/obabel -ismi
-:"c1ccccc1" -osdf --gen2D --property foo bar

 OpenBabel06251115042D

  6  6  0  0  0  0  0  0  0  0999 V2000
   -0.8660    0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8660   -1.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.0000   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  6  1  0  0  0  0
  1  2  2  0  0  0  0
  2  3  1  0  0  0  0
  3  4  2  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
M  END
>  <foo>
bar

$$$$
1 molecule converted
$ ~/opt/openbabel-2.3.0/openbabel-install/bin/obabel -ismi
-:"c1ccccc1" -osdf --gen2D --property foo bar --property baz 234

 OpenBabel06251115052D

  6  6  0  0  0  0  0  0  0  0999 V2000
   -0.8660    0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8660   -1.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.0000   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  6  1  0  0  0  0
  1  2  2  0  0  0  0
  2  3  1  0  0  0  0
  3  4  2  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
M  END
>  <baz>
234

$$$$
1 molecule converted
$ ~/opt/openbabel-2.3.0/openbabel-install/bin/obabel -ismi
-:"c1ccccc1" -osdf --gen2D --property foo bar baz 234

 OpenBabel06251115062D

  6  6  0  0  0  0  0  0  0  0999 V2000
   -0.8660    0.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7321   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8660   -1.5000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.0000   -1.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  6  1  0  0  0  0
  1  2  2  0  0  0  0
  2  3  1  0  0  0  0
  3  4  2  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
M  END
>  <foo>
bar baz 234

$$$$
1 molecule converted
$

-- 
A. Heifets
http://www.cs.toronto.edu/~aheifets/