This looks like homework to me. Did you consider doing this? 

# 3. What is the value of "$portresults->{portfolio}->{riskgrade}"? 
print "port ", $portresults->{portfolio}->{riskgrade}, "\n";

# 3. What is the value of "sprintf("%.2f", -$portresults->{Bayer}->{xl
+oss} )"? 
printf "sprintf: %.2f\n", -$portresults->{Bayer}->{xloss};

# 4. What is the first element of "sort {lc($b) cmp lc($a)} keys %{$po
+rtresults}" ?     
@ary = sort {lc($b) cmp lc($a)} keys %{$portresults};
print "sort: $ary[0]\n";

[download]

As for Q5 this is a bizare regex that does this: 

s      # substitute
/      # begin search sequence
<      # find a literal <
(?!    # negative lookahead ie find a < not followed by
\/*    # 0 or more / chars
[bi]   # then either a 'b' or and 'i' char
>      # then a literal >
)      # end of negative lookahead
.*?    # 0 or more of any characters, non greedy ie minimal
>      # a literal >
/x/    # replacement sequence is a literal 'x' char
g      # do all occurences

[download]

In a nutshell this will subsitite all HTML tags with the letter 'x' except for <b> </b> <i> </i> tags. It is very broken. 

$HTML = <<THIS;
<html>
<head>
  <title>Foo</title>
</head>
<body>
  <B>This regex is broken</b>
  <b>It will cope with this</b>
  <b >But not this< /b>
  <I>told you</i>ts<b>roken</b>
</body>
</html>
THIS

$HTML =~ s/<(?!\/*[bi]>).*?>/x/g;
print $HTML;

[download]

When all else fails suck it and see! cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Perl with XML by tachyon
in thread Perl with XML by Anonymous Monk

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