Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath

mldvx4 has asked for the wisdom of the Perl Monks concerning the following question:

I have some paragraph nodes I'd like to truncate starting with the <br /> element within it. Given the code below at the bottom of the post, I'd like to find a way to just have it print, what's in a paragraph but then leave out or delete everything after a break.

foo01
foo02
foo03

I could find the break itself with '//div/p/br[1]' but then how would I be able to have the script delete that and everything else following it within the parent paragraph element?

for my $d ($root->findnodes($xpath))
{
    for my $dd ($d->findnodes('something'))
    {
        $dd->delete;
    }
    print $d->as_trimmed_text,qq(\n) if (defined($d->as_text));
}
[download]

Here is the script so far, with data.

#!/usr/bin/perl

use HTML::TreeBuilder::XPath;

use strict;
use warnings;

my $root = HTML::TreeBuilder::XPath->new;
$root->parse_file(\*DATA)
    or die("Could not parse the data: $!\n");
$root->eof();

my $xpath = '//div/p';

for my $d ($root->findnodes($xpath))
{
    print $d->as_trimmed_text,qq(\n) if (defined($d->as_text));
}

$root->delete;

exit(0);

__DATA__

<div><p>foo01<br />bar01</p></div>

<div>
    <p>
    foo02
    <br />
    bar02
    </p>
</div>

<div>
    <p>
    foo03
    <br />
    bar03
    <br /
    baz03
    </p>
</div>
[download]

Comment on Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath Select or Download Code

Replies are listed 'Best First'.
Re: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath by Anonymous Monk on Sep 27, 2019 at 08:35 UTC
Xpather for tips. Siblings are what youre after. https://metacpan.org/pod/HTML::Element#right	[reply]
Re^2: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath by mldvx4 (Friar) on Sep 27, 2019 at 16:06 UTC
Ok, but `foo01`, `foo02`, and `foo03` are content, not elements. Thus they cannot be siblings to the `<br />` element. That mix and match of types (?) prevents the sibling search from being the solution here. I'm still trying a lot of things but want to stay as much as I can with the objects created by and manipulated through HTML::Element.	[reply] [d/l] [select]
Re^3: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath by poj (Abbot) on Sep 27, 2019 at 16:09 UTC
Try `for my $d ($root->findnodes($xpath)) { my @line = $d->content_list; s/^\s+\|\s+$//g for @line; printf "%s\n",$line[0]; }` [download] poj	[reply] [d/l]
Re^4: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath by mldvx4 (Friar) on Sep 27, 2019 at 18:33 UTC
Re^5: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath by tangent (Parson) on Sep 28, 2019 at 19:20 UTC
Re^3: Truncating an HTML node using XPaths in HTML::TreeBuilder::XPath ( pindex splice_content content_array_ref ) by Anonymous Monk on Sep 29, 2019 at 03:55 UTC
A tip for tips is to look around a tip, both above and below :) #!/usr/bin/perl -- use strict; use warnings; use HTML::TreeBuilder::XPath; my $tree= HTML::TreeBuilder::XPath->new_from_content(<<'HTML'); <body> <div><p>foo01<br />bar01</p></div> <div> <p> foo02 <br /> bar02 </p> </div> <div> <p> foo03 <br /> bar03 <br / baz03 </p> </div> HTML # $tree->dump; print $tree->as_HTML( '><&' => " " ), "\n";; for my $br ( $tree->findnodes( '//div/p/br[1]' ) ){ $br->parent->splice_content( $br->pindex, int@{ $br->parent->content_array_ref } ); } # $tree->dump; print $tree->as_HTML( '><&' => " " ), "\n";; __END__ <html> <head> </head> <body> <div> <p>foo01<br />bar01</div> <div> <p> foo02 <br /> bar02 </div> <div> <p> foo03 <br /> bar03 <br </p="</p" baz03="baz03" /> </div> </body> </html> <html> <head> </head> <body> <div> <p>foo01</div> <div> <p> foo02 </div> <div> <p> foo03 </div> </body> </html> [download]	[reply] [d/l]


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