Hi grandfather, This is the code which i tried. 
require HTML::TokeParser;
$p = HTML::TokeParser->new("output.xml") ||
      die "Can't open: $!";
$p->empty_element_tags(1);
open(FH, "output.xml");
print FH $p;
close FH;

[download]
output.xml 
<greeting class="simple">Hello, world!

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The above file is a sample file which i tried to insert the closing tag for the greeting. Actually i have a file which contains 500 lines of text with tagging. for. example in that file i have a tag named <to> but it's not closed. I have to insert the closing tag. This is an example. Thanks for your suggestion.

In reply to Re^2: read a file and insert closing tags if not present by valavanp
in thread read a file and insert closing tags if not present by valavanp

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