<p>I would like to have the same editor available on all of the platforms I frequent.</p>

<p>Emacs and Vi are not desired solutions.</p>

From
http://help.eclipse.org/help21/topic/org.eclipse.platform.doc.user/tasks/running_eclipse.htm
:
Use the following command-line argument:
```
```
-data your_workspace_location
```
```
For example,
```
```
-data c:\users\robert\myworkspace
```
```
you can also use UNIX-style relative path names such as
```
```
-data ../workspace
```
```
even under Windows, in case something doesnt like colons or backslashes in parameters, like Jumplist Launcher