Split string in JavaScript using RegExp ignoring the delimiter inside brackets

Question

I have various instances of strings that I need to split. Following are some examples and the desired output scenarios. The rules to split are also listed:

Example 1

Answer 1

This regex should work for the cases you've outlined:

/\|(?!(?:\w+\|?)+])/

Here's an example of it running: http://jsfiddle.net/UFq3h/1/ (you will need to have the console opened to see the results).

Crude explanation: any | character not followed by (word characters or | followed by ]). If you need a more precise explanation post a comment and I'll try to make it clearer.

Edit: Thanks to Lolo for the improved version, which handles the last example in the use case.