Re: TWig handler generation

You're close.

my $del_handler = sub { $_->delete() };
my $node_to_delete = 'node1-node2-node3-node4';
my @tags = split('-', $node_to_delete );
my $handlers = { map { $_ => $del_handler } @tags };
my $twig = new XML::Twig( twig_handlers => $handlers );
$twig->parsefile(*DATA);
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holli

You can lead your users to water, but alas, you cannot drown them.

Comment on Re: TWig handler generation Download Code

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Re^2: TWig handler generation by nico38100 (Novice) on Feb 01, 2019 at 16:52 UTC
Hello holli Thanks for your email, I tried what you post but it doesn't seem to work. Here my code instead of having *Data I am parsing a file . Here the code @elements = split('-', $elements_to_treat); if ($subject[0] eq 'delete_node'){ print "Delete Node ".$element."\n " if ($dbgFlag == 1); &delete_node(@elements,$file_to_read); } sub delete_node { #--------------------------------------------------------------------- +--------- my ($elements,$file_to_read) = @_; my $del_handler = sub { $_->delete()}; my @all_element = @{$elements}; my $handlers = {map {$_ => $del_handler} @all_element}; my $twig = new XML::Twig(twig_handlers => $handlers); $twig->parsefile($file_to_read); } [download] And here the results of my parsing which is ending in errror `Line of configuration file: delete_node:{node1-node2-node3-node4} Element of configuration to treat: 'node1-node2-node3-node4' Delete Node Couldn't open node1: No such file or directory at C:\Users\test\Documents\` [download] it seems it's created a file but I don't understand why, if you have an idea ? Many Thanks	[reply] [d/l] [select]
Re^3: TWig handler generation by holli (Abbot) on Feb 01, 2019 at 17:01 UTC
You are calling your sub with a an array as "first argument": `&delete_node(@elements,$file_to_read);` But in your sub you expect an arrayref: `my ($elements,$file_to_read) = @_;` You need to pass your data in as a reference. Also, don't call subs with "&". And if your learning material teaches you to, throw it away. `delete_node(\@elements,$file_to_read);` See if that fixes it. holli You can lead your users to water, but alas, you cannot drown them.	[reply] [d/l] [select]