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wakaba |
1.1 |
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=head1 NAME |
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SuikaWiki::Markup::XML --- SuikaWiki: Simple well-formed document fragment generator |
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=head1 DESCRIPTION |
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This module can be used to generate the document fragment of XML, SGML or |
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other well-formed (in XML meaning) data formats with the object oriented manner. |
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This module cannot be used to parse XML (or other marked-up) document (or its fragment) |
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by itself, nor is compatible with other huge packages such as XML::Parser. The only purpose |
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of this module is to make it easy for tiny perl scripts to GENERATE well-formed |
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markup constructures. (SuikaWiki is not "tiny"? Oh, yes, I see:-)) |
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=cut |
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package SuikaWiki::Markup::XML; |
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use strict; |
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use overload '""' => \&stringify; |
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use Char::Class::XML qw!InXML_NCNameStartChar InXMLNCNameChar!; |
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our %Namespace_URI_to_prefix = ( |
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'DAV:' => [qw/dav webdav/], |
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'http://greenbytes.de/2002/rfcedit' => [qw/ed/], |
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'http://icl.com/saxon' => [qw/saxon/], |
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'http://members.jcom.home.ne.jp/jintrick/2003/02/site-concept.xml#' => ['', qw/sitemap/], |
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'http://purl.org/dc/elements/1.1/' => [qw/dc dc11/], |
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'http://purl.org/rss/1.0/' => ['', qw/rss rss10/], |
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'http://suika.fam.cx/~wakaba/lang/rfc/translation/' => [qw/ja/], |
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'http://www.mozilla.org/xbl' => ['', qw/xbl/], |
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'http://www.w3.org/1999/02/22-rdf-syntax-ns#' => [qw/rdf RDF/], |
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'http://www.w3.org/1999/xhtml' => ['', qw/h h1 xhtml xhtml1/], |
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'http://www.w3.org/1999/xlink' => [qw/l xlink/], |
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'http://www.w3.org/1999/XSL/Format' => [qw/fo xslfo xsl-fo xsl/], |
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'http://www.w3.org/1999/XSL/Transform' => [qw/t s xslt xsl/], |
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'http://www.w3.org/1999/XSL/TransformAlias' => [qw/axslt axsl xslt xsl/], |
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'http://www.w3.org/2000/01/rdf-schema#' => [qw/rdfs/], |
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'http://www.w3.org/2000/svg' => ['', qw/s svg/], |
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'http://www.w3.org/2002/06/hlink' => [qw/h hlink/], |
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'http://www.w3.org/2002/06/xhtml2' => ['', qw/h h2 xhtml xhtml2/], |
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'http://www.w3.org/Graphics/SVG/svg-19990412.dtd' => ['', qw/svg/], |
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'http://www.w3.org/TR/REC-smil' => ['', qw/smil smil1/], |
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'http://xml.apache.org/xalan' => [qw/xalan/], |
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'mailto:julian.reschke@greenbytes.de?subject=rcf2629.xslt' => [qw/myns/], |
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'urn:schemas-microsoft-com:office:excel' => [qw/x excel/], |
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'urn:schemas-microsoft-com:office:office' => [qw/o office/], |
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'urn:schemas-microsoft-com:office:word' => [qw/w word/], |
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'urn:schemas-microsoft-com:vml' => [qw/v vml/], |
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'urn:schemas-microsoft-com:xslt' => [qw/ms msxsl msxslt/], |
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'urn:x-suika-fam-cx:markup:ietf:html:3:draft:00' => ['', qw/H HTML HTML3/], |
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); |
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my %Cache; |
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=head1 METHODS |
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=over 4 |
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=item $x = SuikaWiki::Markup::XML->new (%options) |
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Returns new instance of the module. It is itself a node. |
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Available options: C<type> (default: C<#element>), C<local_name>, C<namespace_uri>, |
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C<value>. |
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=cut |
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sub new ($;%) { |
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my $class = shift; |
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my $self = bless {@_}, $class; |
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$self->{type} ||= '#element'; |
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$self->{node} ||= []; |
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$self; |
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} |
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=item $x->append_node ($node) |
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Appending given node to the object (as the last child). |
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If the type of given node is C<#fragment>, its all children, not the node |
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itself, are appended. |
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This method returns the appended node unless the type of given node is C<#fragment>. |
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In such cases, this node (C<$x>) is returned. |
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=cut |
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sub append_node ($$) { |
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my $self = shift; |
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my $new_node = shift; |
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die "append_node: Invalid node" unless ref $new_node; |
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if ($new_node->{type} eq '#fragment') { |
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for (@{$new_node->{node}}) { |
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push @{$self->{node}}, $_; |
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$_->{parent} = $self; |
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} |
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$self; |
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} else { |
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push @{$self->{node}}, $new_node; |
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$new_node->{parent} = $self; |
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$new_node; |
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} |
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} |
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=item $new_node = $x->append_new_node (%options) |
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Appending a new node. The new node is returned. |
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Available options: C<type>, C<namespace_uri>, C<local_name>, C<value>. |
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=cut |
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sub append_new_node ($;%) { |
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my $self = shift; |
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my %o = @_; |
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my $new_node = __PACKAGE__->new (%o); |
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push @{$self->{node}}, $new_node; |
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$new_node->{parent} = $self; |
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$new_node; |
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} |
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=item $new_node = $x->append_text ($text) |
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Appending given text as a new text node. The new text node is returned. |
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=cut |
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sub append_text ($$;%) { |
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my $self = shift; |
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my $s = shift; |
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#if (@{$self->{node}}[-1]->{type} eq '#text') { |
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# $self->{node}}[-1]->append_new_node (type => '#text', value => $s); |
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#} else { |
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$self->append_new_node (type => '#text', value => $s); |
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#} |
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} |
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=item $attr_node = $x->get_attribute ($local_name, %options) |
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Returns the attribute node whose local-name is C<$local_name>. |
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Available options: C<namespace_uri>, C<make_new_node>. |
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=cut |
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sub get_attribute ($$;%) { |
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my $self = shift; |
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my ($name, %o) = @_; |
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for (@{$self->{node}}) { |
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if ($_->{type} eq '#attribute' && $_->{local_name} eq $name && $o{namespace_uri} eq $_->{namespace_uri}) { |
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return $_; |
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} |
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} |
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## Node is not exist |
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if ($o{make_new_node}) { |
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return $self->append_new_node (type => '#attribute', local_name => $name, namespace_uri => $o{namespace_uri}); |
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} else { |
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return undef; |
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} |
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} |
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=item $attr_node = $x->set_attribute ($local_name => $value, %options) |
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Set the value of the attribute. The attribute node is returned. |
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Available options: C<namespace_uri>. |
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=cut |
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sub set_attribute ($$$;%) { |
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my $self = shift; |
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my ($name, $val, %o) = @_; |
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for (@{$self->{node}}) { |
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if ($_->{type} eq '#attribute' && $_->{local_name} eq $name && $o{namespace_uri} eq $_->{namespace_uri}) { |
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$_->{value} = $val; |
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$_->{node} = []; |
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return $_; |
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} |
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} |
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return $self->append_new_node (type => '#attribute', local_name => $name, value => $val, namespace_uri => $o{namespace_uri}); |
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} |
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=item \@children = $x->child_nodes |
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Returns an array reference to child nodes. |
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=item $local_name = $x->local_name |
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Returns the local-name. |
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=item $type = $x->node_type |
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Returns the node type. |
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=item $node = $x->parent_node |
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Returns the parent node. If there is no parent node, undef is returned. |
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=cut |
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sub child_nodes ($) { shift->{node} } |
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sub local_name ($) { shift->{local_name} } |
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sub node_type ($) { shift->{type} } |
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sub parent_node ($) { shift->{parent} } |
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=item $i = $x->count |
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Returns the number of child nodes. |
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=cut |
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# TODO: support counting by type |
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sub count ($;@) { |
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scalar @{shift->{node}}; |
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} |
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# $prefix = $x->_get_namespace_prefix ($namespace_uri) |
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sub _get_namespace_prefix ($$;%) { |
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my ($self, $uri) = (shift, shift); |
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my %o = @_; |
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if (defined (my $p = $self->_uri_to_prefix ($uri, undef, %o))) { |
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return $p if $self->_prefix_to_uri ($p) eq $uri; |
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} if ($Namespace_URI_to_prefix{$uri}) { |
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for (@{$Namespace_URI_to_prefix{$uri}}) { |
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my $pfx = $_; $pfx .= ':' if $pfx; |
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if ($self->_check_namespace_prefix ($pfx) && !$self->_prefix_to_uri ($pfx)) { |
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return $self->_uri_to_prefix ($uri => $pfx, %o); |
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} |
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} |
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} else { |
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my ($u_r_i, $pfx) = ($uri); |
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while ($u_r_i =~ s/([A-Za-z][0-9A-Za-z-]+)[^0-9A-Za-z-]*$//) { |
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my $p_f_x = $1 . ':'; |
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next if uc (substr ($p_f_x, 0, 3)) eq 'XML'; |
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unless ($self->_prefix_to_uri ($p_f_x)) { |
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$pfx = $p_f_x; |
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last; |
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} |
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} |
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if ($pfx) { |
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return $self->_uri_to_prefix ($uri => $pfx, %o); |
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} else { |
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while (1) { |
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my $pfx = 'ns'.(++$self->{ns}->{-anonymous}).':'; |
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unless ($self->_prefix_to_uri ($pfx)) { |
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return $self->_uri_to_prefix ($uri => $pfx, %o); |
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} |
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} |
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} |
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} |
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} |
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# $uri or undef = $x->_prefix_to_uri ($prefix => [$new_uri]) |
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sub _prefix_to_uri ($$;$%) { |
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my ($self, $prefix, $new_uri, %o) = @_; |
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return undef unless $self->_check_namespace_prefix ($prefix); |
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if ($new_uri) { |
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$self->{ns}->{$prefix} = $new_uri; |
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} |
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if (uc (substr $prefix, 0, 3) eq 'XML') { |
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return 'http://www.w3.org/XML/1998/namespace' if $prefix eq 'xml:'; |
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return 'http://www.w3.org/2000/xmlns/' if $prefix eq 'xmlns:'; |
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} if (defined $self->{ns}->{$prefix}) { |
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$self->{ns}->{$prefix}; |
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} elsif (ref $self->{parent}) { |
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shift; # $self |
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$self->{parent}->_prefix_to_uri (@_); |
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} else { |
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undef; |
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} |
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} |
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# $prefix or undef = $x->_uri_to_prefix ($uri => [$new_prefix], %options) |
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# use_no_prefix (default: 1): Allow default namespace (no prefix). |
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sub _uri_to_prefix ($$;$%) { |
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my ($self, $uri, $new_prefix, %o) = @_; |
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if (defined $new_prefix && $self->_check_namespace_prefix ($new_prefix)) { |
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$self->{ns}->{$new_prefix} = $uri; |
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$new_prefix; |
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} else { |
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return 'xml:' if $uri eq 'http://www.w3.org/XML/1998/namespace'; |
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return 'xmlns:' if $uri eq 'http://www.w3.org/2000/xmlns/'; |
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for (keys %{$self->{ns}||{}}) { |
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next if ($_ eq '') && !(!defined $o{use_no_prefix} || $o{use_no_prefix}); |
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return $_ if $self->{ns}->{$_} eq $uri; |
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} |
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if (ref $self->{parent}) { |
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shift; # $self |
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$self->{parent}->_uri_to_prefix (@_); |
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} else { |
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undef; |
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} |
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} |
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} |
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=item $x->define_new_namespace ($prefix => $uri) |
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Defines a new XML Namespace. This method is useful for root or section-level |
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element node. |
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Returned value is unspecified in this version of this module. |
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=cut |
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sub define_new_namespace ($$$) { |
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my ($self, $prefix, $uri) = @_; |
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if ($prefix eq '' || $self->_check_ncname ($prefix)) { |
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$prefix .= ':' if $prefix && substr ($prefix, -1) ne ':'; |
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$self->_prefix_to_uri ($prefix => $uri); |
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} else { |
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undef; |
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} |
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} |
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=item $qname = $x->qname |
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Returns QName ((namespace-)qualified name) of the element type. |
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Undef is retuened when the type does not have its QName |
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(ie. when type is neither C<#element> or C<#attribute>). |
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=cut |
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sub qname ($) { |
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my $self = shift; |
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if ($self->_check_ncname ($self->{local_name})) { |
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if ($self->{type} eq '#element') { |
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$self->{_qname} = $self->_get_namespace_prefix ($self->{namespace_uri}) . $self->{local_name} |
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unless $self->{_qname}; |
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return $self->{_qname}; |
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} elsif ($self->{type} eq '#attribute') { |
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return $self->attribute_name; |
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} |
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} |
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undef; |
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} |
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=item $tag = $x->start_tag |
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Returns the start tag (or something that marks the start of something, such as '<!-- ' |
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for C<#comment> nodes). |
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=cut |
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sub start_tag ($) { |
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|
|
my $self = shift; |
| 345 |
|
|
if ($self->{type} eq '#element' && $self->_check_ncname ($self->{local_name})) { |
| 346 |
|
|
my $r = '<'; |
| 347 |
|
|
$r .= $self->qname; |
| 348 |
|
|
for (@{$self->{node}}) { |
| 349 |
|
|
$r .= ' ' . $_->outer_xml if $_->node_type eq '#attribute'; |
| 350 |
|
|
} |
| 351 |
|
|
for my $prefix (grep !/^-/, keys %{$self->{ns}||{}}) { |
| 352 |
|
|
if ($prefix) { |
| 353 |
|
|
$r .= ' xmlns:'.substr ($prefix, 0, length ($prefix)-1); |
| 354 |
|
|
} else { |
| 355 |
|
|
$r .= ' xmlns'; |
| 356 |
|
|
} |
| 357 |
|
|
$r .= '="'.$self->_entitize ($self->{ns}->{$prefix}).'"'; |
| 358 |
|
|
} |
| 359 |
|
|
$r .= '>'; |
| 360 |
|
|
$r; |
| 361 |
|
|
} elsif ($self->{type} eq '#comment') { |
| 362 |
|
|
'<!-- '; |
| 363 |
|
|
} elsif ($self->{type} eq '#pi' && $self->_check_ncname ($self->{local_name})) { |
| 364 |
|
|
'<?' . $self->{local_name}; |
| 365 |
|
|
} elsif ($self->{type} eq '#declaration' && $self->_check_ncname ($self->{local_name})) { |
| 366 |
|
|
my $r = '<!' . $self->{local_name} . ' '; |
| 367 |
|
|
if ($self->{local_name} eq 'DOCTYPE' && ref $self->{parent}) { |
| 368 |
|
|
my $qname; |
| 369 |
|
|
for (@{$self->{parent}->{node}}) { |
| 370 |
|
|
if ($_->{type} eq '#element') { |
| 371 |
|
|
$qname = $_->qname; |
| 372 |
|
|
last if $qname; |
| 373 |
|
|
} |
| 374 |
|
|
} |
| 375 |
|
|
$r .= ($qname ? $qname : '#IMPLIED') . ' '; |
| 376 |
|
|
$r; |
| 377 |
|
|
} |
| 378 |
|
|
} else { |
| 379 |
|
|
''; |
| 380 |
|
|
} |
| 381 |
|
|
} |
| 382 |
|
|
|
| 383 |
|
|
=item $tag = $x->end_tag |
| 384 |
|
|
|
| 385 |
|
|
Returns the end tag (or something that marks the end of something, such as ' -->' |
| 386 |
|
|
for C<#comment> nodes). |
| 387 |
|
|
|
| 388 |
|
|
=cut |
| 389 |
|
|
|
| 390 |
|
|
sub end_tag ($) { |
| 391 |
|
|
my $self = shift; |
| 392 |
|
|
if ($self->{type} eq '#element' && $self->_check_ncname ($self->{local_name})) { |
| 393 |
|
|
'</' . $self->qname . '>'; |
| 394 |
|
|
} elsif ($self->{type} eq '#comment') { |
| 395 |
|
|
' -->'; |
| 396 |
|
|
} elsif ($self->{type} eq '#pi' && $self->_check_ncname ($self->{local_name})) { |
| 397 |
|
|
'?>'; |
| 398 |
|
|
} elsif ($self->{type} eq '#declaration' && $self->_check_ncname ($self->{local_name})) { |
| 399 |
|
|
my $r = ''; |
| 400 |
|
|
$r .= '>'; |
| 401 |
|
|
} else { |
| 402 |
|
|
''; |
| 403 |
|
|
} |
| 404 |
|
|
} |
| 405 |
|
|
|
| 406 |
|
|
=item $tag = $x->attribute_name |
| 407 |
|
|
|
| 408 |
|
|
Returns the attribute name. |
| 409 |
|
|
|
| 410 |
|
|
=cut |
| 411 |
|
|
|
| 412 |
|
|
sub attribute_name ($) { |
| 413 |
|
|
my $self = shift; |
| 414 |
|
|
if ($self->{type} eq '#attribute' && $self->_check_ncname ($self->{local_name})) { |
| 415 |
|
|
($self->{namespace_uri} ? |
| 416 |
|
|
(ref $self->{parent} ? $self->{parent} : $self) |
| 417 |
|
|
->_get_namespace_prefix ($self->{namespace_uri}, use_no_prefix => 0) : '') |
| 418 |
|
|
.$self->{local_name}; |
| 419 |
|
|
} elsif ($self->{type} eq '#pair' && $self->_check_ncname ($self->{local_name})) { |
| 420 |
|
|
$self->{local_name}; |
| 421 |
|
|
} else { |
| 422 |
|
|
''; |
| 423 |
|
|
} |
| 424 |
|
|
} |
| 425 |
|
|
|
| 426 |
|
|
=item $tag = $x->attribute_value |
| 427 |
|
|
|
| 428 |
|
|
Returns the attribute value. |
| 429 |
|
|
|
| 430 |
|
|
=cut |
| 431 |
|
|
|
| 432 |
|
|
sub attribute_value ($) { |
| 433 |
|
|
my $self = shift; |
| 434 |
|
|
if ($self->{type} eq '#attribute' && $self->_check_ncname ($self->{local_name})) { |
| 435 |
|
|
'"' . $self->_entitize ($self->inner_text) . '"'; |
| 436 |
|
|
} elsif ($self->{type} eq '#pair' && $self->_check_ncname ($self->{local_name})) { |
| 437 |
|
|
my $t = $self->inner_text; |
| 438 |
|
|
if ($t =~ /"/) { |
| 439 |
|
|
if ($t =~ /'/) { |
| 440 |
|
|
$t =~ s/"/"/g; |
| 441 |
|
|
return '"' . $t . '"'; |
| 442 |
|
|
} else { |
| 443 |
|
|
return "'" . $t . "'"; |
| 444 |
|
|
} |
| 445 |
|
|
} else { |
| 446 |
|
|
return '"' . $t . '"'; |
| 447 |
|
|
} |
| 448 |
|
|
} else { |
| 449 |
|
|
''; |
| 450 |
|
|
} |
| 451 |
|
|
} |
| 452 |
|
|
|
| 453 |
|
|
=item $tag = $x->attribute |
| 454 |
|
|
|
| 455 |
|
|
Returns the attribute (name and value pair). |
| 456 |
|
|
|
| 457 |
|
|
=cut |
| 458 |
|
|
|
| 459 |
|
|
sub attribute ($) { |
| 460 |
|
|
my $self = shift; |
| 461 |
|
|
if ($self->{type} eq '#attribute' && $self->_check_ncname ($self->{local_name})) { |
| 462 |
|
|
$self->attribute_name . '=' . $self->attribute_value; |
| 463 |
|
|
} elsif ($self->{type} eq '#pair' && $self->_check_ncname ($self->{local_name})) { |
| 464 |
|
|
$self->attribute_name . ' ' . $self->attribute_value; |
| 465 |
|
|
} else { |
| 466 |
|
|
''; |
| 467 |
|
|
} |
| 468 |
|
|
} |
| 469 |
|
|
|
| 470 |
|
|
=item $tag = $x->inner_xml |
| 471 |
|
|
|
| 472 |
|
|
Returns the content of the node in XML syntax. (In case of the C<#element> nodes, |
| 473 |
|
|
element content without start- and end-tags is returned.) |
| 474 |
|
|
|
| 475 |
|
|
Note that for not all node types the behavior of this method is defined. |
| 476 |
|
|
For example, returned value of C<#attribute> might be unexpected one |
| 477 |
|
|
in this version of this module. |
| 478 |
|
|
|
| 479 |
|
|
=cut |
| 480 |
|
|
|
| 481 |
|
|
sub inner_xml ($) { |
| 482 |
|
|
my $self = shift; |
| 483 |
|
|
my $r = ''; |
| 484 |
|
|
if ($self->{type} eq '#comment') { |
| 485 |
|
|
$r = $self->inner_text; |
| 486 |
|
|
$r =~ s/--/-E/g; |
| 487 |
|
|
} elsif ($self->{type} eq '#pi') { |
| 488 |
|
|
if (length $self->{value}) { |
| 489 |
|
|
$r = ' ' . $self->{value}; |
| 490 |
|
|
$r =~ s/\?>/?>/g; |
| 491 |
|
|
} |
| 492 |
|
|
for (@{$self->{node}}) { |
| 493 |
|
|
if ($_->node_type eq '#attribute') { |
| 494 |
|
|
$r .= ' ' . $_->attribute; |
| 495 |
|
|
} else { |
| 496 |
|
|
my $s = $_->inner_text; |
| 497 |
|
|
$s =~ s/\?>/?>/g; |
| 498 |
|
|
$r .= ' ' . $s if length $s; |
| 499 |
|
|
} |
| 500 |
|
|
} |
| 501 |
|
|
} elsif ($self->{type} eq '#declaration') { |
| 502 |
|
|
my ($isub, $pubid, $sysid) = (''); |
| 503 |
|
|
for (@{$self->{node}}) { |
| 504 |
|
|
if ($_->{type} eq '#pair') { |
| 505 |
|
|
if ($_->{local_name} eq 'PUBLIC') { |
| 506 |
|
|
$pubid = $_; |
| 507 |
|
|
} elsif ($_->{local_name} eq 'SYSTEM') { |
| 508 |
|
|
$sysid = $_; |
| 509 |
|
|
} |
| 510 |
|
|
} else { |
| 511 |
|
|
$isub .= $_->outer_xml; |
| 512 |
|
|
} |
| 513 |
|
|
} |
| 514 |
|
|
if ($sysid) { |
| 515 |
|
|
if ($pubid) { |
| 516 |
|
|
$r = $pubid->attribute . ' ' . $sysid->attribute_value; |
| 517 |
|
|
} else { |
| 518 |
|
|
$r = $sysid->attribute; |
| 519 |
|
|
} |
| 520 |
|
|
if ($isub) { |
| 521 |
|
|
$r .= " [\n" . $isub . "\n]"; |
| 522 |
|
|
} |
| 523 |
|
|
} else { |
| 524 |
|
|
if ($isub) { |
| 525 |
|
|
$r = "[\n" . $isub . "\n]"; |
| 526 |
|
|
} else { |
| 527 |
|
|
$r = "[]"; |
| 528 |
|
|
} |
| 529 |
|
|
} |
| 530 |
|
|
} else { |
| 531 |
|
|
if ($self->{type} ne '#xml') { |
| 532 |
|
|
$r = $self->_entitize ($self->{value}); |
| 533 |
|
|
} else { |
| 534 |
|
|
$r = $self->{value}; |
| 535 |
|
|
} |
| 536 |
|
|
for (@{$self->{node}}) { |
| 537 |
|
|
my $nt = $_->node_type; |
| 538 |
|
|
if ((0||$self->{option}->{indent}) && ($nt eq '#element' || $nt eq '#comment' || $nt eq '#pi' || $nt eq '#declaration')) { |
| 539 |
|
|
$r .= "\n"; |
| 540 |
|
|
} |
| 541 |
|
|
$r .= $_->outer_xml unless $_->node_type eq '#attribute'; |
| 542 |
|
|
} |
| 543 |
|
|
} |
| 544 |
|
|
$r; |
| 545 |
|
|
} |
| 546 |
|
|
|
| 547 |
|
|
|
| 548 |
|
|
=item $tag = $x->outer_xml |
| 549 |
|
|
|
| 550 |
|
|
Returns the node in XML syntax. |
| 551 |
|
|
|
| 552 |
|
|
=cut |
| 553 |
|
|
|
| 554 |
|
|
sub outer_xml ($) { |
| 555 |
|
|
my $self = shift; |
| 556 |
|
|
if ($self->{type} eq '#attribute') { |
| 557 |
|
|
$self->attribute; |
| 558 |
|
|
} else { |
| 559 |
|
|
if ((0||$self->{option}->{indent}) && $self->{type} eq '#element') { |
| 560 |
|
|
my $r = $self->start_tag; |
| 561 |
|
|
my $c = $self->inner_xml; |
| 562 |
|
|
if ($c) { |
| 563 |
|
|
$c =~ s/\n/\n /g; |
| 564 |
|
|
$r .= "\n " . $c . "\n"; |
| 565 |
|
|
} |
| 566 |
|
|
$r .= $self->end_tag; |
| 567 |
|
|
$r; |
| 568 |
|
|
} else { |
| 569 |
|
|
$self->start_tag . $self->inner_xml . $self->end_tag; |
| 570 |
|
|
} |
| 571 |
|
|
} |
| 572 |
|
|
} |
| 573 |
|
|
|
| 574 |
|
|
=item $tag = $x->inner_text |
| 575 |
|
|
|
| 576 |
|
|
Returns the text content of the node. (In many case the returned value is same |
| 577 |
|
|
as WinIE DOM C<inner_text ()> function's or XPath C<text()> function's. |
| 578 |
|
|
But some classes that inherits this module might implement to return other |
| 579 |
|
|
value (eg. to return the value of the alt attribute of html:img element). |
| 580 |
|
|
|
| 581 |
|
|
=cut |
| 582 |
|
|
|
| 583 |
|
|
sub inner_text ($) { |
| 584 |
|
|
my $self = shift; |
| 585 |
|
|
my $r = $self->{value}; |
| 586 |
|
|
for (@{$self->{node}}) { |
| 587 |
|
|
$r .= $_->inner_text unless $_->node_type eq '#attribute'; |
| 588 |
|
|
} |
| 589 |
|
|
$r; |
| 590 |
|
|
} |
| 591 |
|
|
|
| 592 |
|
|
{no warnings; # prototype mismatch |
| 593 |
|
|
*stringify = \&outer_xml; |
| 594 |
|
|
} |
| 595 |
|
|
|
| 596 |
|
|
# $s = $x->_entitize ($s) |
| 597 |
|
|
sub _entitize ($$) { |
| 598 |
|
|
my ($self, $s) = (shift, shift); |
| 599 |
|
|
$s =~ s/&/&/g; |
| 600 |
|
|
$s =~ s/</</g; |
| 601 |
|
|
$s =~ s/>/>/g; |
| 602 |
|
|
$s =~ s/"/"/g; |
| 603 |
|
|
$s; |
| 604 |
|
|
} |
| 605 |
|
|
|
| 606 |
|
|
# 1/0 = $x->_check_ncname ($s) |
| 607 |
|
|
sub _check_ncname ($$) { |
| 608 |
|
|
my $self = shift; |
| 609 |
|
|
my $s = shift; |
| 610 |
|
|
return $Cache{ncname}->{$s} if defined $Cache{ncname}->{$s}; |
| 611 |
|
|
if ($s =~ /^\p{InXML_NCNameStartChar}/ && $s !~ /\P{InXMLNCNameChar}/) { |
| 612 |
|
|
# \p{...}('*'/'+'/'{n,}') does not work... |
| 613 |
|
|
$Cache{ncname}->{$s} = 1; |
| 614 |
|
|
1; |
| 615 |
|
|
} else { |
| 616 |
|
|
$Cache{ncname}->{$s} = 0; |
| 617 |
|
|
0; |
| 618 |
|
|
} |
| 619 |
|
|
} |
| 620 |
|
|
|
| 621 |
|
|
# 1/0 = $x->_check_namespace_prefix ($s) |
| 622 |
|
|
sub _check_namespace_prefix ($$) { |
| 623 |
|
|
my $self = shift; |
| 624 |
|
|
my $s = shift; |
| 625 |
|
|
return 0 unless defined $s; |
| 626 |
|
|
return 1 if $s eq ''; |
| 627 |
|
|
substr ($s, -1, 1) = '' if substr ($s, -1, 1) eq ':'; |
| 628 |
|
|
$self->_check_ncname ($s); |
| 629 |
|
|
} |
| 630 |
|
|
|
| 631 |
|
|
=back |
| 632 |
|
|
|
| 633 |
|
|
=head1 LICENSE |
| 634 |
|
|
|
| 635 |
|
|
Copyright 2003 Wakaba <w@suika.fam.cx> |
| 636 |
|
|
|
| 637 |
|
|
This program is free software; you can redistribute it and/or |
| 638 |
|
|
modify it under the same terms as Perl itself. |
| 639 |
|
|
|
| 640 |
|
|
=cut |
| 641 |
|
|
|
| 642 |
|
|
1; # $Date: 2003/04/03 01:08:17 $ |
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| 
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