Hi,
I need to remove some lines from an XML file is the value within a tag is empty.
Imagine this scenario,
<acd><acdID>2</acdID><logon></logon></acd>
<acd><acdID></acdID><logon></logon></acd>
<acd><acdID></acdID><logon></logon></acd>
<acd><acdID></acdID><logon></logon></acd>
I... (3 Replies)
Hi All,
I have a large xml file of invoices. The file looks like below:
<INVOICES>
<INVOICE>
<NAME>Customer A</NAME>
<INVOICE_NO>1234</INVOICE_NO>
</INVOICE>
<INVOICE>
<NAME>Customer A</NAME>
<INVOICE_NO>2345</INVOICE_NO>
</INVOICE>
<INVOICE>
<NAME>Customer A</NAME>... (9 Replies)
Hi All,
I want to change the name as SEQ_13
ie., <Property Name="Name">SEQ_13</Property>
when the Stage Type is PxSequentialFile
ie., <Property Name="StageType">PxSequentialFile</Property> :wall:
Input.XML
<Main>
<Record Identifier="V0S13" Type="CustomStage" Readonly="0">... (3 Replies)
Hi
I have some data in a file as below
******************************
Class 1A
Students absent are :
1. ABC
2. CDE
3. CPE
******************************
Class 2A
Students absent are :
******************************
Class 3A
Students absent are : (6 Replies)
Hi ,
I have a situation where I need to search an xml file for the presence of a tag
<FollowOnFrom> and also , presence of partial part of the following tag <ContractRequest _LoadId and if these 2 exist ,then
extract the value from the following tag <_LocalId> which is
"CW2094139". There... (2 Replies)
Hi All,
I am having a file like below. The file will having information about the records.If you see the file the file is header and data. For example it have 1 men tag and the tag id will be come after headers. The change is I want to convert All pets tag from P to X. I did a sed like below... (5 Replies)
Hi Forum.
I have an XML file with the following requirement to move the <AdditionalAccountHolders> tag and its content right after the <accountHolderName> tag within the same file but I'm not sure how to accomplish this through a Unix script.
Any feedback will be greatly appreciated.
... (19 Replies)
Discussion started by: pchang
19 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)