Question

I need a regular expression to get the text out from between [ and ] within a sentence.

Example Text:

Hello World - Test[**This is my string**]. Good bye World.

Desired Result:

**This is my String**

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The regex that I have come up with is Test\\[[a-zA-Z].+\\], but this returns the entire **Test[This is my string]**

Answer 1

(?<=Test\[)[^\[\]]*(?=\])

should do what you want.

(?<=Test\[) # Assert that "Test[" can be matched before the current position
[^\[\]]*    # Match any number of characters except brackets
(?=\])      # Assert that "]" can be matched after the current position

Read up on lookaround assertions.