in reply to Re^4: getting ancestors of element
in thread getting ancestors of element

I think it should be unless($e), not unless(/$e/). When this change is made the code runs well. Please consider using the here file syntax for test scripts as it makes it easier to test them:

my @l = << 'END';
aaaa 
bbbb
END

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Thanks!

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Re^6: getting ancestors of element
by jccunning (Acolyte) on Sep 08, 2012 at 21:05 UTC
    I discovered that $1 is sometimes undefined on lines 381 and 394 when calling ret_ancestors and caused the error. Need to rethink my logic in the For loop on line 349.
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Re^6: getting ancestors of element
by jccunning (Acolyte) on Sep 08, 2012 at 22:18 UTC
    I discovered my problem is in regex 
    $tname =~ m/[declaration_]?name="(\w+[:]?.\w+[:]?.\w+);

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    where I am trying to extract the value of the name attribute which could be single word all lowercase or all uppercase, could also be Panoply::Blah or Panoply::Blah::Blah2 or have special character in name such as ~BAR In script $tname would contain something like 
    all_members name="~BAR" protection="public" scope="Panoply::BAR"

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    Also noticed from test that passing ~BAR in the argument $1 in 
    ret_ancestors sub {@list = join(" => ", @_)}, $nitemstr, $1;

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    Does not return a list because of ~ character. Any help with regex appreciated.
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[d/l]
[select]
      Fixed it everything appears to work now with this regex 
      $tname =~ m/[declaration_]?name="(.*?)"/;

      [download]
[reply]
[d/l]
        I don't think so 
        use YAPE::Regex::Explain;
print YAPE::Regex::Explain->new(
    qr/[declaration_]?name="(.*?)"/
)->explain;
__END__
The regular expression:

(?-imsx:[declaration_]?name="(.*?)")

matches as follows:

NODE                     EXPLANATION
----------------------------------------------------------------------
(?-imsx:                 group, but do not capture (case-sensitive)
                         (with ^ and $ matching normally) (with . not
                         matching \n) (matching whitespace and #
                         normally):
----------------------------------------------------------------------
  [declaration_]?          any character of: 'd', 'e', 'c', 'l', 'a',
                           'r', 'a', 't', 'i', 'o', 'n', '_'
                           (optional (matching the most amount
                           possible))
----------------------------------------------------------------------
  name="                   'name="'
----------------------------------------------------------------------
  (                        group and capture to \1:
----------------------------------------------------------------------
    .*?                      any character except \n (0 or more times
                             (matching the least amount possible))
----------------------------------------------------------------------
  )                        end of \1
----------------------------------------------------------------------
  "                        '"'
----------------------------------------------------------------------
)                        end of grouping
----------------------------------------------------------------------

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        http://perldoc.perl.org/perlintro.html#Regular-expressions/perlrequick

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[d/l]

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