ros/ros_comm — pull request #50 by stonier (2013-01-08 10:35:30+00:00)
Title: Use roslaunch arg resolution in rosparam text

Would be very useful to do things like

```
rosparam param="app_lists">$(arg app_lists)
```

or even use `$(find ...)` embedded in the raw yaml. This works for `` where the value is a tag attribute. Obvious advantage with rosparam is to be able to parse lists and dictionaries. Over the last three years I keep running into this and seem to be finding more situations where it's desirable now I'm using args alot more.

The fix here is a simple one-liner. It works, but is there intentionally a reason this wasn't implemented?