Regular expression to capture each letter to the same capture group

Question

My string to be parsed consist of letters separated by spaces. Letters can only occur zero or one time. An example is " A B C D E" or "C E D". I need a pattern that captures appearances of all letters into the same capture group so that I can iterate over that group later.

" A B C D E " -match "<regex>"

I expect the result to be:

Group 'Letter' match #1: A
Group 'Letter' match #2: B
Group 'Letter' match #3: C
Group 'Letter' match #4: D
Group 'Letter' match #5: E

Answer 1

In Powershell, the following gives you an array of all regex matches:

$regex = [regex] '\b\p{L}\b'
$allmatches = $regex.Matches(" A B C D E FG");

You can then access the matches using $allmatches.Item[] (which will contain "A", "B", "C", "D", "E" but not "F" or "G").