Groovy: Dynamic access to nested properties via GString

In groovy you can easily access properties by using GString which a really cool feature.

	Map data=[
	one:"john",
	two:"mary"
	]
	String entry="two"
	println data."${entry}" //"mary"

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However this trick doesnt work when nested '.' are inside de expression.

In this case you can do the following:

	Map data=[
	one:[
	two:"2222",
	three:"333"
	]
	]
	String nestedExpression="one.two"
	String output=nestedExpression.tokenize('.').inject(data) {v, k -> v."$k"}
	println output // "2222"

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That's all!