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wakaba |
1.1 |
#!/usr/bin/perl |
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use strict; |
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use Getopt::Long; |
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use Pod::Usage; |
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my $lang; |
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GetOptions ( |
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'lang=s' => \$lang, |
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'help' => sub { |
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pod2usage (-exitval => 0, -verbose => 2); |
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}, |
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) or pod2usage (-exitval => 1, -verbose => 1); |
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pod2usage (-exitval => 1, -verbose => 1, |
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-msg => "Required argument --lang is not specified.\n") |
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unless defined $lang; |
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$lang =~ tr/A-Z/a-z/; ## ASCII case-insensitive. |
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use Message::DOM::DOMImplementation; |
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my $dom = Message::DOM::DOMImplementation->new; |
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my $doc = $dom->create_document; |
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$doc->manakai_is_html (1); |
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{ |
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binmode STDIN, ':encoding(utf8)'; |
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local $/ = undef; |
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$doc->inner_html (scalar <STDIN>); |
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} |
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my @remove; |
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my $containers = $doc->query_selector_all |
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('[data-lang-container], [data-lang-content]'); |
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for my $el (@$containers) { |
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next unless $el->parent_node; |
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if ($el->has_attribute ('data-lang-container')) { |
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my $content = get_content_element ($el); |
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next unless $content; |
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if ($el->get_attribute ('data-lang-container') eq 'replace') { |
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$el->parent_node->replace_child ($content, $el); |
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} else { |
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$el->text_content (''); |
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$el->append_child ($content); |
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} |
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} elsif ($el->has_attribute ('data-lang-content')) { |
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my $idref = $el->get_attribute ('data-lang-content'); |
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my $container = $doc->get_element_by_id ($idref); |
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unless ($container) { |
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warn "Element with ID $idref not found\n"; |
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next; |
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} |
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my $content = get_content_element ($container); |
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$el->text_content ($content->text_content); |
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$el->manakai_html_language ($content->manakai_html_language); |
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if ($container->has_attribute ('data-lang-declaration')) { |
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push @remove, $container; |
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} |
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} |
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} |
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for (@remove) { |
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next unless $_->parent_node; |
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$_->parent_node->remove_child ($_); |
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} |
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$doc->document_element->manakai_html_language ($lang); |
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binmode STDOUT, ':encoding(utf8)'; |
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print STDOUT $doc->inner_html; |
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sub get_content_element ($) { |
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my $container = shift; |
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my $c_el; |
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for my $e (@{$container->child_nodes}) { |
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next unless $e->node_type == $e->ELEMENT_NODE; |
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my $e_lang = $e->manakai_html_language; |
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$e_lang =~ tr/A-Z/a-z/; ## ASCII case-insensitive. |
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if ($e_lang eq $lang) { |
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$c_el = $e; |
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last; |
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} else { |
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$c_el ||= $e; |
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} |
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} |
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return $c_el; |
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} # get_content_element |
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## $Date:$ |
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