I would like to remove all lines from a QString that have text and keep the ones that are numbers.

Prior to running a regexp my QString output be as so:
Qt Code:
  1. hello
  2. 1
  3. world
  4. 2
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if I ran something like
Qt Code:
  1. QString.remove(QRegExp("(^[a-z]*\\n$)"))
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my QString output would be:

Qt Code:
  1. 1
  2. 2
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