Suppose I'm processing a file with XML::Twig, and my code figures out something it doesn't like, such as a duplicate chapter name or other semantic rule that's not the domain of the actual XML parser.

sub on_chapter
 {
 my ($t,$e)= @_;
 my $name= $e->att ('name');
 if ( i don't like the name ) {
    my $errorpoint= what do I call here?
    print "Warning: crummy chapter name in file $myfile line $errorpoi
+nt\n";
    }

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How do I get the information to tell the user where in the input file I found this at? Ideally the line number, since that's what we're used to and easy to find in a text editor.

—John

In reply to XML::Twig error reporting by John M. Dlugosz

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