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Re^5: 'Dynamic scoping' of capture variables ($1, $2, etc.)

by moritz (Cardinal)
on Dec 19, 2012 at 06:21 UTC ( #1009507=note: print w/replies, xml ) Need Help??

in reply to Re^4: 'Dynamic scoping' of capture variables ($1, $2, etc.)
in thread 'Dynamic scoping' of capture variables ($1, $2, etc.)

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; }

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Re^6: 'Dynamic scoping' of capture variables ($1, $2, etc.)
by nvivek (Vicar) on Dec 20, 2012 at 07:16 UTC
    Thanks for your explanation. I got it.

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