Add text method to element

[sujathakumar]

No description provided.

[joente]

Thanks for the pull request @iamneal!

Could you take a look at the test results? There are some lint issues with the pr. Otherwise it looks fine.

Test CI and Test Lint

[iamneal]

yeah I'll take a look

[joente]

@iamneal ,

Maybe we could add a GetNodeString function to Result for retrieving a part of the string?

Something like:

// GetNodeString
func (r *Result) GetNodeString(n *Node) string {
	return r.expression[n.start:n.end]
}

This would require to parse the Node to the Result, but it keeps the Node struct light and does not unnecessary create a lot of new strings. (only when truly required).