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I saw your response soon after you posted it, but had to go to a meeting outside and did not have time. Coming back home, I tried a couple of things and it turns out to be more difficult than I thought.

Although this solution is far from elegant, it seems to work:

DB<1> $x = q|<blah1 phase="2" type="MyType" more_keys="Values" <Unwa +nted/> <SomeTagIwant><k1="v1"></SomeTagIwant>|; DB<2> $y = q|<blah1 phase="2" type="MyType" more_keys="Values" <Unwa +nted/> <SomeTagIDontWant><k1="v1"></SomeTagIDontWant>|; DB<3> print "$_ " for $x =~ /type="([^"]+)".+?(\w+?TagIwant) | typ +e="([^"]+)"/x; MyType SomeTagIwant DB<4> print "$_ " for $y =~ /type="([^"]+)".+?(\\w+?TagIwant) | ty +pe="([^"]+)"/x;; MyType DB<5>
It could be slightly improved with a named regex:
DB<6> $type = qr/type="([^"]+)"/; DB<7> print "$_ " for $x =~ /$type .+?(\w+?TagIwant) | $type /x; MyType SomeTagIwant DB<8> print "$_ " for $y =~ /$type .+?(\w+?TagIwant) | $type /x; MyType
Well, I think that haukex's solution below looks better.

In reply to Re^3: Regex Optional capture doesn't by Laurent_R
in thread Regex Optional capture doesn't by NetWallah

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