hello world! world!
this matches with following regexp in find(?<aa>[^ ]+)\s+(?<bb>[^ ]+)\s\k<bb>
However when I replace this to \k<bb>, it prints out just k<bb> in plaintext, instead of world!
I first thought replace section does not handle regular expressions, but \1, \2 works well even in replacement section. It seems replacement section does not handle named captures.
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