Question: I would like to have the same editor available on all of the platforms I frequent.

Emacs and Vi are not desired solutions.

Answer: 
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
**Creating a shortcut file with target :**

Create a shortcut of your eclipse.
Open the properties of the shortcut file and set the target as follows,

```
E\STS.exe -data "WORKSPACE_LOCATION"

```

**For launching from .bat file :**

```
cd ECLIPSE_LOCATION   
start STS.exe -data "WORKSPACE_LOCATION"

```

Example:

```
cd /D D:\IDE\sts-bundle\sts-3.7.0.RELEASE    
start STS.exe -data "D:\My Workspace\workspace1"

```