XML :: Twig忽略了一些元素?

时间:2010-11-27 13:48:06

标签: xml perl xml-parsing xml-twig

XML的一部分如下所示:

<ipcEntry kind="1" symbol="A01B0013080000" ipcLevel="A" entryType="K" lang="EN" nocore="yes">
    <textBody>
        <title>
            <titlePart>
                <text>for working subsoil</text>
            </titlePart>
        </title>
    </textBody>
    <ipcEntry kind="2" symbol="A01B0013100000" ipcLevel="A" entryType="K" lang="EN" nocore="yes">
        <textBody>
            <title>
                <titlePart>
                    <text>Special implements for lifting subsoil layers</text>
                </titlePart>
            </title>
        </textBody>
        <ipcEntry kind="3" symbol="A01B0013120000" ipcLevel="A" entryType="K" lang="EN" nocore="yes">
            <textBody>
                <title>
                    <titlePart>
                        <text>Means for distributing the layers on the surface</text>
                    </titlePart>
                </title>
            </textBody>
        </ipcEntry>
    </ipcEntry>
</ipcEntry>

我的代码是:

#!/usr/bin/perl
use strict;
use warnings;
use XML::Twig;
use Data::Dumper;

my $twig_handlers = { 'ipcEntry' =>  \&ipcEntrySub };

my $file = 'A01B.xml';
my $twig= new XML::Twig( twig_handlers => $twig_handlers );
$twig->parsefile($file);
#$twig->print;




sub ipcEntrySub {

   my ($twig_obj, $element) = @_;

  print $element->{'att'}->{'symbol'} . "\n";
 print "Kind: $element->{'att'}->{'kind'}\n";
 print $element->text . "\n";
 print "###########################################\n";


    $twig_obj->purge;

}

似乎我无法得到文字:<text>Special implements for lifting subsoil layers</text> 我猜它是因为<ipcEntry kind="2" symbol="A01B0013100000" ipcLevel="A" entryType="K" lang="EN" nocore="yes">有另一个sub ipcEntry。

我可以<text>Means for distributing the layers on the surface</text>

我在这里做错了什么?

谢谢,

1 个答案:

答案 0 :(得分:6)

来自XML :: Twig文档:

  

flush不应使用此方法,   总是冲洗树枝,而不是元素。

     

purge与“flush”相同   除了它不打印树枝。它   只删除所有的元素   到目前为止已被完全解析。

使用delete函数替换清除函数以相反的顺序打印所有ipcEntry元素的文本,即。从最里面的ipcEntry元素开始。

sub ipcEntrySub {
  my ($twig_obj, $element) = @_;

  print $element->{'att'}->{'symbol'} . "\n";
  print "Kind: $element->{'att'}->{'kind'}\n";
  print $element->text . "\n";

  $element->delete;
}