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As per your code, your m// expression will match first digits ( 55 ) at all time as per my understanding

No, because I used m/../g in scalar context, which remembers the previous match position in pos, and then always returns the next match during subsequent calls.

Maybe you are more familiar with it in this idiom:

use 5.010; $_ = 'a123b45c6'; while (m/(\d+)/g) { say $1; }

In reply to Re^5: 'Dynamic scoping' of capture variables ($1, $2, etc.) by moritz
in thread 'Dynamic scoping' of capture variables ($1, $2, etc.) by AnomalousMonk

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