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I am the author of the above comment. Something like this seems to work:
$result =~ /\A/g or die; # make extra sure we are at start of string @r = ($result =~ m/\G(foo)/gc); if ($result =~ /\G(.+)/sg) { warn "leftover junk at the end of result: $1"; }
The key is the /c flag on the repeated match so that when it fails, it leaves the match position in place so the trailing junk, if any, can be reported. If there is leading junk, then the regexp won't match any times, and the whole string will be reported as 'leftover'. That is a good enough error message for my purposes.

In reply to Re^2: Perl Idioms Explained - @ary = $str =~ m/(stuff)/g by ed
in thread Perl Idioms Explained - @ary = $str =~ m/(stuff)/g by tachyon

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    [hippo]: Which version of CentOS?
    [vedagiri89]: how to fix: Attempt to reload DynaLoader.pm aborted
    [hippo]: Ah, presumably 7 then.
    [vedagiri89]: CentOS Linux release 7.0.1406 (Core)
    [hippo]: How did you install libapreq2?
    [vedagiri89]: that one is done by system team from the tar i guess
    [hippo]: Really? Not using the one from the CentOS repository? Perhaps that's the problem.
    [vedagiri89]: i need when this issue will come usually
    [hippo]: How about mod_perl? Was that installed from the CentOS packge or from source?
    [vedagiri89]: from the source

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