[Scons-users] Builder Arguments: **kwargs?

[John Galbraith]

I am trying to use scons to keep figures for a paper up to date.  
Basically, my source files are hdf5 data, and my targets are images, csv 
files, and pdf files (from matplotlib).  So every time I generate a new 
hdf5 file, I want scons to recreate the figures depending on the data.

So this is working fairly well, actually.  But it would be convenient to 
pass arguments to my rules in addition to "source" and "target".  I 
could probably stuff arguments in the Environment, but that sounds 
icky.  Right now, I am regexing arguments out of the "target" file name, 
which is also nasty and fragile.  Is there any way to propogate a kwargs 
or something like that from the rule to the builder?  Like:

env.field(target='ez0', source='fulldomain', **kwargs)

where "field" is a custom builder of my own (it writes an image), and 
"env" is the build environment?

John