Class: LibXML::XML::Node
- Inherits:
-
Object
- Object
- LibXML::XML::Node
- Includes:
- Enumerable
- Defined in:
- ext/libxml/ruby_xml_node.c,
lib/libxml/node.rb,
ext/libxml/ruby_xml_node.c
Overview
Nodes are the primary objects that make up an XML document. The node class represents most node types that are found in an XML document (but not LibXML::XML::Attributes, see LibXML::XML::Attr). It exposes libxml’s full API for creating, querying moving and deleting node objects. Many of these methods are documented in the DOM Level 3 specification found at: www.w3.org/TR/DOM-Level-3-Core/.
Constant Summary collapse
- SPACE_DEFAULT =
INT2NUM(0)
- SPACE_PRESERVE =
INT2NUM(1)
- SPACE_NOT_INHERIT =
INT2NUM(-1)
- XLINK_ACTUATE_AUTO =
INT2NUM(1)
- XLINK_ACTUATE_NONE =
INT2NUM(0)
- XLINK_ACTUATE_ONREQUEST =
INT2NUM(2)
- XLINK_SHOW_EMBED =
INT2NUM(2)
- XLINK_SHOW_NEW =
INT2NUM(1)
- XLINK_SHOW_NONE =
INT2NUM(0)
- XLINK_SHOW_REPLACE =
INT2NUM(3)
- XLINK_TYPE_EXTENDED =
INT2NUM(2)
- XLINK_TYPE_EXTENDED_SET =
INT2NUM(3)
- XLINK_TYPE_NONE =
INT2NUM(0)
- XLINK_TYPE_SIMPLE =
INT2NUM(1)
- ELEMENT_NODE =
INT2FIX(XML_ELEMENT_NODE)
- ATTRIBUTE_NODE =
INT2FIX(XML_ATTRIBUTE_NODE)
- TEXT_NODE =
INT2FIX(XML_TEXT_NODE)
- CDATA_SECTION_NODE =
INT2FIX(XML_CDATA_SECTION_NODE)
- ENTITY_REF_NODE =
INT2FIX(XML_ENTITY_REF_NODE)
- ENTITY_NODE =
INT2FIX(XML_ENTITY_NODE)
- PI_NODE =
INT2FIX(XML_PI_NODE)
- COMMENT_NODE =
INT2FIX(XML_COMMENT_NODE)
- DOCUMENT_NODE =
INT2FIX(XML_DOCUMENT_NODE)
- DOCUMENT_TYPE_NODE =
INT2FIX(XML_DOCUMENT_TYPE_NODE)
- DOCUMENT_FRAG_NODE =
INT2FIX(XML_DOCUMENT_FRAG_NODE)
- NOTATION_NODE =
INT2FIX(XML_NOTATION_NODE)
- HTML_DOCUMENT_NODE =
INT2FIX(XML_HTML_DOCUMENT_NODE)
- DTD_NODE =
INT2FIX(XML_DTD_NODE)
- ELEMENT_DECL =
INT2FIX(XML_ELEMENT_DECL)
- ATTRIBUTE_DECL =
INT2FIX(XML_ATTRIBUTE_DECL)
- ENTITY_DECL =
INT2FIX(XML_ENTITY_DECL)
- NAMESPACE_DECL =
INT2FIX(XML_NAMESPACE_DECL)
- XINCLUDE_START =
INT2FIX(XML_XINCLUDE_START)
- XINCLUDE_END =
INT2FIX(XML_XINCLUDE_END)
- DOCB_DOCUMENT_NODE =
Qnil
Class Method Summary collapse
-
.XML::Node.new_cdata(content = nil) ⇒ XML::Node
Create a new #CDATA node, optionally setting the node’s content.
-
.XML::Node.new_comment(content = nil) ⇒ XML::Node
Create a new comment node, optionally setting the node’s content.
-
.XML::Node.new_pi(name, content = nil) ⇒ XML::Node
Create a new pi node, optionally setting the node’s content.
-
.XML::Node.new_text(content) ⇒ XML::Node
Create a new text node.
Instance Method Summary collapse
-
#<<(obj) ⇒ Object
Add the specified text or XML::Node as a new child node to the current node.
-
#[](name) ⇒ Object
Obtain the named property.
-
#[]=("name") ⇒ Object
Set the named property.
-
#attribute? ⇒ Boolean
Specifies if this is an attribute node.
-
#attribute_decl? ⇒ Boolean
Specifies if this is an attribute declaration node.
-
#attributes ⇒ Object
Returns the XML::Attributes for this node.
-
#attributes? ⇒ Boolean
Determines whether this node has attributes.
-
#base_uri ⇒ Object
Obtain this node’s base URI.
-
#base_uri=(uri) ⇒ Object
Set this node’s base URI.
-
#empty? ⇒ Boolean
Determine whether this node is an empty or whitespace only text-node.
-
#cdata? ⇒ Boolean
Specifies if this is an CDATA node.
-
#children ⇒ Object
Returns this node’s children as an array.
-
#clone ⇒ Object
Create a shallow copy of the node.
-
#comment? ⇒ Boolean
Specifies if this is an comment node.
-
#content ⇒ Object
Obtain this node’s content as a string.
-
#content=(content) ⇒ Object
Set this node’s content to the specified string.
-
#context(nslist = nil) ⇒ Object
call-seq: node.context(namespaces=nil) -> XPath::Context.
-
#copy ⇒ XML::Node
Creates a copy of this node.
-
#debug ⇒ Object
Print libxml debugging information to stdout.
-
#doc ⇒ Object
Obtain the XML::Document this node belongs to.
-
#docbook_doc? ⇒ Boolean
Specifies if this is an docbook node.
-
#doctype? ⇒ Boolean
Specifies if this is an doctype node.
-
#document? ⇒ Boolean
Specifies if this is an document node.
-
#dtd? ⇒ Boolean
Specifies if this is an DTD node.
-
#dup ⇒ Object
:call-seq: node.dup -> XML::Node.
-
#each ⇒ XML::Node
(also: #each_child)
Iterates over this node’s children, including text nodes, element nodes, etc.
-
#each_attr ⇒ Object
——- Traversal —————- Iterates over this node’s attributes.
-
#each_element ⇒ Object
Iterates over this node’s child elements (nodes that have a node_type == ELEMENT_NODE).
-
#element? ⇒ Boolean
Specifies if this is an element node.
-
#element_decl? ⇒ Boolean
Specifies if this is an element declaration node.
-
#empty? ⇒ Boolean
Determine whether this node is an empty or whitespace only text-node.
-
#entity? ⇒ Boolean
Specifies if this is an entity node.
-
#entity_ref? ⇒ Boolean
Specifies if this is an entity reference node.
-
#eql?(other_node) ⇒ Boolean
(also: #==)
Test equality between the two nodes.
-
#find(xpath, nslist = nil) ⇒ Object
call-seq: node.find(namespaces=nil) -> XPath::XPathObject.
-
#find_first(xpath, nslist = nil) ⇒ Object
call-seq: node.find_first(namespaces=nil) -> XML::Node.
-
#first ⇒ XML::Node
(also: #child)
Returns this node’s first child node if any.
-
#first? ⇒ Boolean
(also: #child?, #children?)
Determines whether this node has a first node.
-
#fragment? ⇒ Boolean
Specifies if this is a fragment node.
-
#html_doc? ⇒ Boolean
Specifies if this is a html document node.
-
#XML::Node.initialize(name, content = nil, namespace = nil) ⇒ XML::Node
constructor
Creates a new element with the specified name, content and namespace.
-
#inner_xml(options = Hash.new) ⇒ Object
call-seq: node.inner_xml -> “string” node.inner_xml(:indent => true, :encoding => ‘UTF-8’, :level => 0) -> “string”.
-
#lang ⇒ Object
Obtain the language set for this node, if any.
-
#lang=(lang) ⇒ Object
Set the language for this node.
-
#last ⇒ XML::Node
Obtain the last child node of this node, if any.
-
#last? ⇒ Boolean
Determines whether this node has a last node.
-
#line_num ⇒ Numeric
Obtain the line number (in the XML document) that this node was read from.
-
#name ⇒ Object
Obtain this node’s name.
-
#name=(name) ⇒ Object
Set this node’s name.
-
#namespace? ⇒ Boolean
Specifies if this is a namespace node (not if it has a namepsace).
-
#namespaces ⇒ Object
call-seq: node.namespacess -> XML::Namespaces Returns this node’s XML::Namespaces object, which is used to access the namespaces associated with this node.
-
#next ⇒ XML::Node
Returns the next sibling node if one exists.
-
#next=(node) ⇒ Object
Adds the specified node as the next sibling of the current node.
-
#next? ⇒ Boolean
Determines whether this node has a next node.
-
#type ⇒ Numeric
Obtain this node’s type identifier.
-
#node_type_name ⇒ Object
Returns this node’s type name.
-
#notation? ⇒ Boolean
Specifies if this is a notation node.
-
#output_escaping=(value) ⇒ Object
Controls whether this text node or the immediate text node children of an element or attribute node escapes their output.
-
#output_escaping? ⇒ Boolean
Determine whether this node escapes it’s output or not.
-
#parent ⇒ XML::Node
Obtain this node’s parent node, if any.
-
#parent? ⇒ Boolean
Determines whether this node has a parent node.
-
#path ⇒ Object
Obtain this node’s path.
-
#pi? ⇒ Boolean
Specifies if this is a processiong instruction node.
-
#prev ⇒ XML::Node
Obtain the previous sibling, if any.
-
#prev=(node) ⇒ Object
Adds the specified node as the previous sibling of the current node.
-
#prev? ⇒ Boolean
Determines whether this node has a previous node.
-
#remove! ⇒ Object
Removes this node and its children from the document tree by setting its document, parent and siblings to nil.
-
#sibling=(node) ⇒ Object
Adds the specified node as the end of the current node’s list of siblings.
-
#space_preserve ⇒ Object
Determine whether this node preserves whitespace.
-
#space_preserve=(true) ⇒ Object
Control whether this node preserves whitespace.
-
#text? ⇒ Boolean
Specifies if this is a text node.
-
#to_s(*args) ⇒ Object
Converts a node, and all of its children, to a string representation.
-
#xinclude_end? ⇒ Boolean
Specifies if this is an xinclude end node.
-
#xinclude_start? ⇒ Boolean
Specifies if this is an xinclude start node.
-
#xlink? ⇒ Boolean
Determine whether this node is an xlink node.
-
#xlink_type ⇒ Numeric
Obtain the type identifier for this xlink, if applicable.
-
#xlink_type_name ⇒ Object
Obtain the type name for this xlink, if applicable.
Constructor Details
#XML::Node.initialize(name, content = nil, namespace = nil) ⇒ XML::Node
Creates a new element with the specified name, content and namespace. The content and namespace may be nil.
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# File 'ext/libxml/ruby_xml_node.c', line 273
static VALUE rxml_node_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE name;
VALUE content;
VALUE ns;
xmlNodePtr xnode = NULL;
xmlNsPtr xns = NULL;
rb_scan_args(argc, argv, "12", &name, &content, &ns);
name = rb_obj_as_string(name);
if (!NIL_P(ns))
Data_Get_Struct(ns, xmlNs, xns);
xnode = xmlNewNode(xns, (xmlChar*) StringValuePtr(name));
if (xnode == NULL)
rxml_raise(xmlGetLastError());
// Link the ruby wrapper to the underlying libxml node
RDATA(self)->data = xnode;
// Ruby is in charge of managing this node's memory
rxml_node_manage(xnode, self);
if (!NIL_P(content))
rxml_node_content_set(self, content);
return self;
}
|
Class Method Details
.XML::Node.new_cdata(content = nil) ⇒ XML::Node
Create a new #CDATA node, optionally setting the node’s content.
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# File 'ext/libxml/ruby_xml_node.c', line 152
static VALUE rxml_node_new_cdata(int argc, VALUE *argv, VALUE klass)
{
VALUE content = Qnil;
xmlNodePtr xnode;
rb_scan_args(argc, argv, "01", &content);
if (NIL_P(content))
{
xnode = xmlNewCDataBlock(NULL, NULL, 0);
}
else
{
content = rb_obj_as_string(content);
xnode = xmlNewCDataBlock(NULL, (xmlChar*) StringValuePtr(content), (int)RSTRING_LEN(content));
}
if (xnode == NULL)
rxml_raise(xmlGetLastError());
return rxml_node_wrap(xnode);
}
|
.XML::Node.new_comment(content = nil) ⇒ XML::Node
Create a new comment node, optionally setting the node’s content.
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# File 'ext/libxml/ruby_xml_node.c', line 183
static VALUE rxml_node_new_comment(int argc, VALUE *argv, VALUE klass)
{
VALUE content = Qnil;
xmlNodePtr xnode;
rb_scan_args(argc, argv, "01", &content);
if (NIL_P(content))
{
xnode = xmlNewComment(NULL);
}
else
{
content = rb_obj_as_string(content);
xnode = xmlNewComment((xmlChar*) StringValueCStr(content));
}
if (xnode == NULL)
rxml_raise(xmlGetLastError());
return rxml_node_wrap(xnode);
}
|
.XML::Node.new_pi(name, content = nil) ⇒ XML::Node
Create a new pi node, optionally setting the node’s content.
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# File 'ext/libxml/ruby_xml_node.c', line 214
static VALUE rxml_node_new_pi(int argc, VALUE *argv, VALUE klass)
{
VALUE name = Qnil;
VALUE content = Qnil;
xmlNodePtr xnode;
rb_scan_args(argc, argv, "11", &name, &content);
if (NIL_P(name))
{
rb_raise(rb_eRuntimeError, "You must provide me with a name for a PI.");
}
name = rb_obj_as_string(name);
if (NIL_P(content))
{
xnode = xmlNewPI((xmlChar*) StringValuePtr(name), NULL);
}
else
{
content = rb_obj_as_string(content);
xnode = xmlNewPI((xmlChar*) StringValuePtr(name), (xmlChar*) StringValueCStr(content));
}
if (xnode == NULL)
rxml_raise(xmlGetLastError());
return rxml_node_wrap(xnode);
}
|
.XML::Node.new_text(content) ⇒ XML::Node
Create a new text node.
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# File 'ext/libxml/ruby_xml_node.c', line 250
static VALUE rxml_node_new_text(VALUE klass, VALUE content)
{
xmlNodePtr xnode;
Check_Type(content, T_STRING);
content = rb_obj_as_string(content);
xnode = xmlNewText((xmlChar*) StringValueCStr(content));
if (xnode == NULL)
rxml_raise(xmlGetLastError());
return rxml_node_wrap(xnode);
}
|
Instance Method Details
#<<("Some text") ⇒ Object #<<(node) ⇒ Object
Add the specified text or XML::Node as a new child node to the current node.
If the specified argument is a string, it should be a raw string that contains unescaped XML special characters. Entity references are not supported.
The method will return the current node.
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# File 'ext/libxml/ruby_xml_node.c', line 480
static VALUE rxml_node_content_add(VALUE self, VALUE obj)
{
xmlNodePtr xnode;
VALUE str;
xnode = rxml_get_xnode(self);
/* XXX This should only be legal for a CDATA type node, I think,
* resulting in a merge of content, as if a string were passed
* danj 070827
*/
if (rb_obj_is_kind_of(obj, cXMLNode))
{
rxml_node_modify_dom(self, obj, xmlAddChild);
}
else
{
str = rb_obj_as_string(obj);
if (NIL_P(str) || TYPE(str) != T_STRING)
rb_raise(rb_eTypeError, "invalid argument: must be string or XML::Node");
xmlNodeAddContent(xnode, (xmlChar*) StringValuePtr(str));
}
return self;
}
|
#property("name") ⇒ Object #[]("name") ⇒ Object
Obtain the named property.
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# File 'ext/libxml/ruby_xml_node.c', line 1075
static VALUE rxml_node_attribute_get(VALUE self, VALUE name)
{
VALUE attributes = rxml_node_attributes_get(self);
return rxml_attributes_attribute_get(attributes, name);
}
|
#[]=("name") ⇒ Object
Set the named property.
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# File 'ext/libxml/ruby_xml_node.c', line 1087
static VALUE rxml_node_property_set(VALUE self, VALUE name, VALUE value)
{
VALUE attributes = rxml_node_attributes_get(self);
return rxml_attributes_attribute_set(attributes, name, value);
}
|
#attribute? ⇒ Boolean
Specifies if this is an attribute node
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# File 'lib/libxml/node.rb', line 207 def attribute? node_type == ATTRIBUTE_NODE end |
#attribute_decl? ⇒ Boolean
Specifies if this is an attribute declaration node
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# File 'lib/libxml/node.rb', line 212 def attribute_decl? node_type == ATTRIBUTE_DECL end |
#attributes ⇒ Object
Returns the XML::Attributes for this node.
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# File 'ext/libxml/ruby_xml_node.c', line 1060
static VALUE rxml_node_attributes_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
return rxml_attributes_new(xnode);
}
|
#attributes? ⇒ Boolean
Determines whether this node has attributes
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# File 'lib/libxml/node.rb', line 9 def attributes? attributes.length > 0 end |
#base_uri ⇒ Object
Obtain this node’s base URI.
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# File 'ext/libxml/ruby_xml_node.c', line 343
static VALUE rxml_node_base_uri_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar* base_uri;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
if (xnode->doc == NULL)
return (result);
base_uri = xmlNodeGetBase(xnode->doc, xnode);
if (base_uri)
{
result = rxml_new_cstr( base_uri, NULL);
xmlFree(base_uri);
}
return (result);
}
|
#base_uri=(uri) ⇒ Object
Set this node’s base URI.
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# File 'ext/libxml/ruby_xml_node.c', line 372
static VALUE rxml_node_base_uri_set(VALUE self, VALUE uri)
{
xmlNodePtr xnode;
Check_Type(uri, T_STRING);
xnode = rxml_get_xnode(self);
if (xnode->doc == NULL)
return (Qnil);
xmlNodeSetBase(xnode, (xmlChar*) StringValuePtr(uri));
return (Qtrue);
}
|
#empty? ⇒ Boolean
Determine whether this node is an empty or whitespace only text-node.
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# File 'ext/libxml/ruby_xml_node.c', line 664
static VALUE rxml_node_empty_q(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode == NULL)
return (Qnil);
return ((xmlIsBlankNode(xnode) == 1) ? Qtrue : Qfalse);
}
|
#cdata? ⇒ Boolean
Specifies if this is an CDATA node
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# File 'lib/libxml/node.rb', line 217 def cdata? node_type == CDATA_SECTION_NODE end |
#children ⇒ Object
Returns this node’s children as an array.
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# File 'lib/libxml/node.rb', line 131 def children entries end |
#clone ⇒ Object
Create a shallow copy of the node. To create a deep copy call Node#copy(true)
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# File 'lib/libxml/node.rb', line 15 def clone copy(false) end |
#comment? ⇒ Boolean
Specifies if this is an comment node
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# File 'lib/libxml/node.rb', line 222 def comment? node_type == COMMENT_NODE end |
#content ⇒ Object
Obtain this node’s content as a string.
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# File 'ext/libxml/ruby_xml_node.c', line 391
static VALUE rxml_node_content_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar *content;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
content = xmlNodeGetContent(xnode);
if (content)
{
result = rxml_new_cstr(content, NULL);
xmlFree(content);
}
return result;
}
|
#content=(content) ⇒ Object
Set this node’s content to the specified string.
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# File 'ext/libxml/ruby_xml_node.c', line 414
static VALUE rxml_node_content_set(VALUE self, VALUE content)
{
xmlNodePtr xnode;
xmlChar* encoded_content;
Check_Type(content, T_STRING);
xnode = rxml_get_xnode(self);
encoded_content = xmlEncodeSpecialChars(xnode->doc, (xmlChar*) StringValuePtr(content));
xmlNodeSetContent(xnode, encoded_content);
xmlFree(encoded_content);
return (Qtrue);
}
|
#context(nslist = nil) ⇒ Object
call-seq:
node.context(namespaces=nil) -> XPath::Context
Returns a new XML::XPathContext for the current node.
Namespaces is an optional array of XML::NS objects
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# File 'lib/libxml/node.rb', line 53 def context(nslist = nil) if not self.doc raise(TypeError, "A node must belong to a document before a xpath context can be created") end context = XPath::Context.new(self.doc) context.node = self context.register_namespaces_from_node(self) context.register_namespaces_from_node(self.doc.root) context.register_namespaces(nslist) if nslist context end |
#copy ⇒ XML::Node
Creates a copy of this node. To create a shallow copy set the deep parameter to false. To create a deep copy set the deep parameter to true.
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# File 'ext/libxml/ruby_xml_node.c', line 1277
static VALUE rxml_node_copy(VALUE self, VALUE deep)
{
xmlNodePtr xnode;
xmlNodePtr xcopy;
int recursive = (deep == Qnil || deep == Qfalse) ? 0 : 1;
xnode = rxml_get_xnode(self);
xcopy = xmlCopyNode(xnode, recursive);
if (xcopy)
return rxml_node_wrap(xcopy);
else
return Qnil;
}
|
#debug ⇒ Object
Print libxml debugging information to stdout. Requires that libxml was compiled with debugging enabled.
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# File 'ext/libxml/ruby_xml_node.c', line 434
static VALUE rxml_node_debug(VALUE self)
{
#ifdef LIBXML_DEBUG_ENABLED
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
xmlDebugDumpNode(NULL, xnode, 2);
return Qtrue;
#else
rb_warn("libxml was compiled without debugging support.");
return Qfalse;
#endif
}
|
#doc ⇒ Object
Obtain the XML::Document this node belongs to.
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# File 'ext/libxml/ruby_xml_node.c', line 512
static VALUE rxml_node_doc(VALUE self)
{
xmlDocPtr xdoc = NULL;
xmlNodePtr xnode = rxml_get_xnode(self);
switch (xnode->type)
{
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE:
case XML_NAMESPACE_DECL:
break;
case XML_ATTRIBUTE_NODE:
xdoc = (xmlDocPtr)((xmlAttrPtr) xnode->doc);
break;
default:
xdoc = xnode->doc;
}
if (xdoc == NULL)
return (Qnil);
return (VALUE)xdoc->_private;
}
|
#docbook_doc? ⇒ Boolean
Specifies if this is an docbook node
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# File 'lib/libxml/node.rb', line 227 def docbook_doc? node_type == DOCB_DOCUMENT_NODE end |
#doctype? ⇒ Boolean
Specifies if this is an doctype node
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# File 'lib/libxml/node.rb', line 232 def doctype? node_type == DOCUMENT_TYPE_NODE end |
#document? ⇒ Boolean
Specifies if this is an document node
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# File 'lib/libxml/node.rb', line 237 def document? node_type == DOCUMENT_NODE end |
#dtd? ⇒ Boolean
Specifies if this is an DTD node
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# File 'lib/libxml/node.rb', line 242 def dtd? node_type == DTD_NODE end |
#dup ⇒ Object
:call-seq:
node.dup -> XML::Node
Create a shallow copy of the node. To create a deep copy call Node#copy(true)
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# File 'lib/libxml/node.rb', line 43 def dup copy(false) end |
#each ⇒ XML::Node Also known as: each_child
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# File 'ext/libxml/ruby_xml_node.c', line 638
static VALUE rxml_node_each(VALUE self)
{
xmlNodePtr xnode;
xmlNodePtr xcurrent;
xnode = rxml_get_xnode(self);
xcurrent = xnode->children;
while (xcurrent)
{
/* The user could remove this node, so first stache
away the next node. */
xmlNodePtr xnext = xcurrent->next;
rb_yield(rxml_node_wrap(xcurrent));
xcurrent = xnext;
}
return Qnil;
}
|
#each_attr ⇒ Object
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# File 'lib/libxml/node.rb', line 103 def each_attr attributes.each do |attr| yield(attr) end end |
#each_element ⇒ Object
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# File 'lib/libxml/node.rb', line 114 def each_element each do |node| yield(node) if node.node_type == ELEMENT_NODE end end |
#element? ⇒ Boolean
Specifies if this is an element node
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# File 'lib/libxml/node.rb', line 247 def element? node_type == ELEMENT_NODE end |
#element_decl? ⇒ Boolean
Specifies if this is an element declaration node
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# File 'lib/libxml/node.rb', line 257 def element_decl? node_type == ELEMENT_DECL end |
#empty? ⇒ Boolean
Determine whether this node is an empty or whitespace only text-node.
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# File 'ext/libxml/ruby_xml_node.c', line 664
static VALUE rxml_node_empty_q(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode == NULL)
return (Qnil);
return ((xmlIsBlankNode(xnode) == 1) ? Qtrue : Qfalse);
}
|
#entity? ⇒ Boolean
Specifies if this is an entity node
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# File 'lib/libxml/node.rb', line 252 def entity? node_type == ENTITY_NODE end |
#entity_ref? ⇒ Boolean
Specifies if this is an entity reference node
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# File 'lib/libxml/node.rb', line 262 def entity_ref? node_type == ENTITY_REF_NODE end |
#eql?(other_node) ⇒ Boolean Also known as: ==
Test equality between the two nodes. Two nodes are equal if they are the same node.
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# File 'ext/libxml/ruby_xml_node.c', line 681
static VALUE rxml_node_eql_q(VALUE self, VALUE other)
{
if (self == other)
{
return Qtrue;
}
else if (NIL_P(other))
{
return Qfalse;
}
else
{
xmlNodePtr xnode = rxml_get_xnode(self);
xmlNodePtr xnode_other = rxml_get_xnode(other);
return xnode == xnode_other ? Qtrue : Qfalse;
}
}
|
#find(xpath, nslist = nil) ⇒ Object
call-seq:
node.find(namespaces=nil) -> XPath::XPathObject
Return nodes matching the specified xpath expression. For more information, please refer to the documentation for XML::Document#find.
Namespaces is an optional array of XML::NS objects
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# File 'lib/libxml/node.rb', line 74 def find(xpath, nslist = nil) self.context(nslist).find(xpath) end |
#find_first(xpath, nslist = nil) ⇒ Object
call-seq:
node.find_first(namespaces=nil) -> XML::Node
Return the first node matching the specified xpath expression. For more information, please refer to the documentation for the #find method.
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# File 'lib/libxml/node.rb', line 84 def find_first(xpath, nslist = nil) find(xpath, nslist).first end |
#first ⇒ XML::Node Also known as: child
Returns this node’s first child node if any.
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# File 'ext/libxml/ruby_xml_node.c', line 453
static VALUE rxml_node_first_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode->children)
return (rxml_node_wrap(xnode->children));
else
return (Qnil);
}
|
#first? ⇒ Boolean Also known as: child?, children?
Determines whether this node has a first node
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# File 'lib/libxml/node.rb', line 126 def first? not first.nil? end |
#fragment? ⇒ Boolean
Specifies if this is a fragment node
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# File 'lib/libxml/node.rb', line 267 def fragment? node_type == DOCUMENT_FRAG_NODE end |
#html_doc? ⇒ Boolean
Specifies if this is a html document node
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# File 'lib/libxml/node.rb', line 272 def html_doc? node_type == HTML_DOCUMENT_NODE end |
#inner_xml(options = Hash.new) ⇒ Object
call-seq:
node.inner_xml -> "string"
node.inner_xml(:indent => true, :encoding => 'UTF-8', :level => 0) -> "string"
Converts a node’s children to a string representation. To include the node, use XML::Node#to_s. For more information about the supported options, see XML::Node#to_s.
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# File 'lib/libxml/node.rb', line 26 def inner_xml( = Hash.new) io = nil self.each do |node| xml = node.to_s() # Create the string IO here since we now know the encoding io = create_string_io(xml) unless io io << xml end io ? io.string : nil end |
#lang ⇒ Object
Obtain the language set for this node, if any. This is set in XML via the xml:lang attribute.
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# File 'ext/libxml/ruby_xml_node.c', line 706
static VALUE rxml_node_lang_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar *lang;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
lang = xmlNodeGetLang(xnode);
if (lang)
{
result = rxml_new_cstr( lang, NULL);
xmlFree(lang);
}
return (result);
}
|
#lang=(lang) ⇒ Object
Set the language for this node. This affects the value of the xml:lang attribute.
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# File 'ext/libxml/ruby_xml_node.c', line 733
static VALUE rxml_node_lang_set(VALUE self, VALUE lang)
{
xmlNodePtr xnode;
Check_Type(lang, T_STRING);
xnode = rxml_get_xnode(self);
xmlNodeSetLang(xnode, (xmlChar*) StringValuePtr(lang));
return (Qtrue);
}
|
#last ⇒ XML::Node
Obtain the last child node of this node, if any.
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# File 'ext/libxml/ruby_xml_node.c', line 750
static VALUE rxml_node_last_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode->last)
return (rxml_node_wrap(xnode->last));
else
return (Qnil);
}
|
#last? ⇒ Boolean
Determines whether this node has a last node
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# File 'lib/libxml/node.rb', line 146 def last? not last.nil? end |
#line_num ⇒ Numeric
Obtain the line number (in the XML document) that this node was read from. If default_line_numbers
is set false (the default), this method returns zero.
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# File 'ext/libxml/ruby_xml_node.c', line 770
static VALUE rxml_node_line_num(VALUE self)
{
xmlNodePtr xnode;
long line_num;
xnode = rxml_get_xnode(self);
line_num = xmlGetLineNo(xnode);
if (line_num == -1)
return (Qnil);
else
return (LONG2NUM((long) line_num));
}
|
#name ⇒ Object
Obtain this node’s name.
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# File 'ext/libxml/ruby_xml_node.c', line 862
static VALUE rxml_node_name_get(VALUE self)
{
xmlNodePtr xnode;
const xmlChar *name;
xnode = rxml_get_xnode(self);
switch (xnode->type)
{
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE:
{
xmlDocPtr doc = (xmlDocPtr) xnode;
name = doc->URL;
break;
}
case XML_ATTRIBUTE_NODE:
{
xmlAttrPtr attr = (xmlAttrPtr) xnode;
name = attr->name;
break;
}
case XML_NAMESPACE_DECL:
{
xmlNsPtr ns = (xmlNsPtr) xnode;
name = ns->prefix;
break;
}
default:
name = xnode->name;
break;
}
if (xnode->name == NULL)
return (Qnil);
else
return (rxml_new_cstr( name, NULL));
}
|
#name=(name) ⇒ Object
Set this node’s name.
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# File 'ext/libxml/ruby_xml_node.c', line 910
static VALUE rxml_node_name_set(VALUE self, VALUE name)
{
xmlNodePtr xnode;
const xmlChar *xname;
Check_Type(name, T_STRING);
xnode = rxml_get_xnode(self);
xname = (const xmlChar*)StringValuePtr(name);
/* Note: calling xmlNodeSetName() for a text node is ignored by libXML. */
xmlNodeSetName(xnode, xname);
return (Qtrue);
}
|
#namespace? ⇒ Boolean
Specifies if this is a namespace node (not if it has a namepsace)
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# File 'lib/libxml/node.rb', line 278 def namespace? node_type == NAMESPACE_DECL end |
#namespaces ⇒ Object
call-seq:
node.namespacess -> XML::Namespaces
Returns this node’s XML::Namespaces object, which is used to access the namespaces associated with this node.
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# File 'lib/libxml/node.rb', line 94 def namespaces @namespaces ||= XML::Namespaces.new(self) end |
#next ⇒ XML::Node
Returns the next sibling node if one exists.
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# File 'ext/libxml/ruby_xml_node.c', line 931
static VALUE rxml_node_next_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode->next)
return (rxml_node_wrap(xnode->next));
else
return (Qnil);
}
|
#next=(node) ⇒ Object
Adds the specified node as the next sibling of the current node. If the node already exists in the document, it is first removed from its existing context. Any adjacent text nodes will be merged together, meaning the returned node may be different than the original node.
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# File 'ext/libxml/ruby_xml_node.c', line 953
static VALUE rxml_node_next_set(VALUE self, VALUE next)
{
return rxml_node_modify_dom(self, next, xmlAddNextSibling);
}
|
#next? ⇒ Boolean
Determines whether this node has a next node
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# File 'lib/libxml/node.rb', line 136 def next? not self.next.nil? end |
#type ⇒ Numeric
Obtain this node’s type identifier.
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# File 'ext/libxml/ruby_xml_node.c', line 1260
static VALUE rxml_node_type(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
return (INT2NUM(xnode->type));
}
|
#node_type_name ⇒ Object
Returns this node’s type name
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# File 'lib/libxml/node.rb', line 154 def node_type_name case node_type # Most common choices first when ATTRIBUTE_NODE 'attribute' when DOCUMENT_NODE 'document_xml' when ELEMENT_NODE 'element' when TEXT_NODE 'text' # Now the rest when ATTRIBUTE_DECL 'attribute_decl' when CDATA_SECTION_NODE 'cdata' when COMMENT_NODE 'comment' when DOCB_DOCUMENT_NODE 'document_docbook' when DOCUMENT_FRAG_NODE 'fragment' when DOCUMENT_TYPE_NODE 'doctype' when DTD_NODE 'dtd' when ELEMENT_DECL 'elem_decl' when ENTITY_DECL 'entity_decl' when ENTITY_NODE 'entity' when ENTITY_REF_NODE 'entity_ref' when HTML_DOCUMENT_NODE 'document_html' when NAMESPACE_DECL 'namespace' when NOTATION_NODE 'notation' when PI_NODE 'pi' when XINCLUDE_START 'xinclude_start' when XINCLUDE_END 'xinclude_end' else raise(UnknownType, "Unknown node type: %n", node.node_type); end end |
#notation? ⇒ Boolean
Specifies if this is a notation node
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# File 'lib/libxml/node.rb', line 283 def notation? node_type == NOTATION_NODE end |
#output_escaping=(true) ⇒ Object #output_escaping=(true) ⇒ Object #output_escaping=(true) ⇒ Object
Controls whether this text node or the immediate text node children of an element or attribute node escapes their output. Any other type of node will simply ignore this operation.
Text nodes which are added to an element or attribute node will be affected by any previous setting of this property.
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# File 'ext/libxml/ruby_xml_node.c', line 1195
static VALUE rxml_node_output_escaping_set(VALUE self, VALUE value)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
switch (xnode->type) {
case XML_TEXT_NODE:
xnode->name = (value != Qfalse && value != Qnil) ? xmlStringText : xmlStringTextNoenc;
break;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
{
const xmlChar *name = (value != Qfalse && value != Qnil) ? xmlStringText : xmlStringTextNoenc;
xmlNodePtr tmp;
for (tmp = xnode->children; tmp; tmp = tmp->next)
if (tmp->type == XML_TEXT_NODE)
tmp->name = name;
}
break;
default:
return Qnil;
}
return (value!=Qfalse && value!=Qnil) ? Qtrue : Qfalse;
}
|
#output_escaping? ⇒ Boolean #output_escaping? ⇒ Boolean #output_escaping? ⇒ Boolean #output_escaping? ⇒ Boolean
Determine whether this node escapes it’s output or not.
Text nodes return only true
or false
. Element and attribute nodes examine their immediate text node children to determine the value. Any other type of node always returns nil
.
If an element or attribute node has at least one immediate child text node and all the immediate text node children have the same output_escaping?
value, that value is returned. Otherwise, nil
is returned.
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# File 'ext/libxml/ruby_xml_node.c', line 1148
static VALUE rxml_node_output_escaping_q(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
switch (xnode->type) {
case XML_TEXT_NODE:
return xnode->name==xmlStringTextNoenc ? Qfalse : Qtrue;
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
{
xmlNodePtr tmp = xnode->children;
const xmlChar *match = NULL;
/* Find the first text node and use it as the reference. */
while (tmp && tmp->type != XML_TEXT_NODE)
tmp = tmp->next;
if (! tmp)
return Qnil;
match = tmp->name;
/* Walk the remaining text nodes until we run out or one doesn't match. */
while (tmp && (tmp->type != XML_TEXT_NODE || match == tmp->name))
tmp = tmp->next;
/* We're left with either the mismatched node or the aggregate result. */
return tmp ? Qnil : (match==xmlStringTextNoenc ? Qfalse : Qtrue);
}
break;
default:
return Qnil;
}
}
|
#parent ⇒ XML::Node
Obtain this node’s parent node, if any.
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# File 'ext/libxml/ruby_xml_node.c', line 964
static VALUE rxml_node_parent_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (xnode->parent)
return (rxml_node_wrap(xnode->parent));
else
return (Qnil);
}
|
#parent? ⇒ Boolean
Determines whether this node has a parent node
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# File 'lib/libxml/node.rb', line 121 def parent? not parent.nil? end |
#path ⇒ Object
Obtain this node’s path.
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# File 'ext/libxml/ruby_xml_node.c', line 982
static VALUE rxml_node_path(VALUE self)
{
xmlNodePtr xnode;
xmlChar *path;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
path = xmlGetNodePath(xnode);
if (path)
{
result = rxml_new_cstr( path, NULL);
xmlFree(path);
}
return result;
}
|
#pi? ⇒ Boolean
Specifies if this is a processiong instruction node
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# File 'lib/libxml/node.rb', line 288 def pi? node_type == PI_NODE end |
#prev ⇒ XML::Node
Obtain the previous sibling, if any.
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# File 'ext/libxml/ruby_xml_node.c', line 1006
static VALUE rxml_node_prev_get(VALUE self)
{
xmlNodePtr xnode;
xmlNodePtr node;
xnode = rxml_get_xnode(self);
switch (xnode->type)
{
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE:
case XML_NAMESPACE_DECL:
node = NULL;
break;
case XML_ATTRIBUTE_NODE:
{
xmlAttrPtr attr = (xmlAttrPtr) xnode;
node = (xmlNodePtr) attr->prev;
}
break;
default:
node = xnode->prev;
break;
}
if (node == NULL)
return (Qnil);
else
return (rxml_node_wrap(node));
}
|
#prev=(node) ⇒ Object
Adds the specified node as the previous sibling of the current node. If the node already exists in the document, it is first removed from its existing context. Any adjacent text nodes will be merged together, meaning the returned node may be different than the original node.
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# File 'ext/libxml/ruby_xml_node.c', line 1049
static VALUE rxml_node_prev_set(VALUE self, VALUE prev)
{
return rxml_node_modify_dom(self, prev, xmlAddPrevSibling);
}
|
#prev? ⇒ Boolean
Determines whether this node has a previous node
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# File 'lib/libxml/node.rb', line 141 def prev? not prev.nil? end |
#remove! ⇒ Object
Removes this node and its children from the document tree by setting its document, parent and siblings to nil. You can add the returned node back into a document. Otherwise, the node will be freed once any references to it go out of scope.
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# File 'ext/libxml/ruby_xml_node.c', line 1102
static VALUE rxml_node_remove_ex(VALUE self)
{
xmlNodePtr xnode = rxml_get_xnode(self);
// Now unlink the node from its parent
xmlUnlinkNode(xnode);
// Ruby now manages this node
rxml_node_manage(xnode, self);
// Now return the removed node so the user can do something with it
return self;
}
|
#sibling=(node) ⇒ Object
Adds the specified node as the end of the current node’s list of siblings. If the node already exists in the document, it is first removed from its existing context. Any adjacent text nodes will be merged together, meaning the returned node may be different than the original node.
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# File 'ext/libxml/ruby_xml_node.c', line 1126
static VALUE rxml_node_sibling_set(VALUE self, VALUE sibling)
{
return rxml_node_modify_dom(self, sibling, xmlAddSibling);
}
|
#space_preserve ⇒ Object
Determine whether this node preserves whitespace.
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# File 'ext/libxml/ruby_xml_node.c', line 1227
static VALUE rxml_node_space_preserve_get(VALUE self)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
return (INT2NUM(xmlNodeGetSpacePreserve(xnode)));
}
|
#space_preserve=(true) ⇒ Object
Control whether this node preserves whitespace.
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# File 'ext/libxml/ruby_xml_node.c', line 1241
static VALUE rxml_node_space_preserve_set(VALUE self, VALUE value)
{
xmlNodePtr xnode;
xnode = rxml_get_xnode(self);
if (value == Qfalse)
xmlNodeSetSpacePreserve(xnode, 0);
else
xmlNodeSetSpacePreserve(xnode, 1);
return (Qnil);
}
|
#text? ⇒ Boolean
Specifies if this is a text node
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# File 'lib/libxml/node.rb', line 293 def text? node_type == TEXT_NODE end |
#to_s ⇒ Object #to_s(: indent) ⇒ true
Converts a node, and all of its children, to a string representation. To include only the node’s children, use the the XML::Node#inner_xml method.
You may provide an optional hash table to control how the string is generated. Valid options are:
:indent - Specifies if the string should be indented. The default value is true. Note that indentation is only added if both :indent is true and XML.indent_tree_output is true. If :indent is set to false, then both indentation and line feeds are removed from the result.
:level - Specifies the indentation level. The amount of indentation is equal to the (level * number_spaces) + number_spaces, where libxml defaults the number of spaces to 2. Thus a level of 0 results in 2 spaces, level 1 results in 4 spaces, level 2 results in 6 spaces, etc.
:encoding - Specifies the output encoding of the string. It defaults to XML::Encoding::UTF8. To change it, use one of the XML::Encoding encoding constants.
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# File 'ext/libxml/ruby_xml_node.c', line 565
static VALUE rxml_node_to_s(int argc, VALUE *argv, VALUE self)
{
VALUE result = Qnil;
VALUE options = Qnil;
xmlNodePtr xnode;
xmlCharEncodingHandlerPtr encodingHandler;
xmlOutputBufferPtr output;
int level = 0;
int indent = 1;
const xmlChar *xencoding = (const xmlChar*)"UTF-8";
rb_scan_args(argc, argv, "01", &options);
if (!NIL_P(options))
{
VALUE rencoding, rindent, rlevel;
Check_Type(options, T_HASH);
rencoding = rb_hash_aref(options, ID2SYM(rb_intern("encoding")));
rindent = rb_hash_aref(options, ID2SYM(rb_intern("indent")));
rlevel = rb_hash_aref(options, ID2SYM(rb_intern("level")));
if (rindent == Qfalse)
indent = 0;
if (rlevel != Qnil)
level = NUM2INT(rlevel);
if (rencoding != Qnil)
{
xencoding = (const xmlChar*)xmlGetCharEncodingName((xmlCharEncoding)NUM2INT(rencoding));
if (!xencoding)
rb_raise(rb_eArgError, "Unknown encoding value: %d", NUM2INT(rencoding));
}
}
encodingHandler = xmlFindCharEncodingHandler((const char*)xencoding);
output = xmlAllocOutputBuffer(encodingHandler);
xnode = rxml_get_xnode(self);
xmlNodeDumpOutput(output, xnode->doc, xnode, level, indent, (const char*)xencoding);
xmlOutputBufferFlush(output);
#ifdef LIBXML2_NEW_BUFFER
if (output->conv)
result = rxml_new_cstr(xmlBufContent(output->conv), xencoding);
else
result = rxml_new_cstr(xmlBufContent(output->buffer), xencoding);
#else
if (output->conv)
result = rxml_new_cstr(xmlBufferContent(output->conv), xencoding);
else
result = rxml_new_cstr(xmlBufferContent(output->buffer), xencoding);
#endif
xmlOutputBufferClose(output);
return result;
}
|
#xinclude_end? ⇒ Boolean
Specifies if this is an xinclude end node
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# File 'lib/libxml/node.rb', line 298 def xinclude_end? node_type == XINCLUDE_END end |
#xinclude_start? ⇒ Boolean
Specifies if this is an xinclude start node
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# File 'lib/libxml/node.rb', line 303 def xinclude_start? node_type == XINCLUDE_START end |
#xlink? ⇒ Boolean
Determine whether this node is an xlink node.
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# File 'ext/libxml/ruby_xml_node.c', line 789
static VALUE rxml_node_xlink_q(VALUE self)
{
xmlNodePtr xnode;
xlinkType xlt;
xnode = rxml_get_xnode(self);
xlt = xlinkIsLink(xnode->doc, xnode);
if (xlt == XLINK_TYPE_NONE)
return (Qfalse);
else
return (Qtrue);
}
|
#xlink_type ⇒ Numeric
Obtain the type identifier for this xlink, if applicable. If this is not an xlink node (see xlink?
), will return nil.
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# File 'ext/libxml/ruby_xml_node.c', line 811
static VALUE rxml_node_xlink_type(VALUE self)
{
xmlNodePtr xnode;
xlinkType xlt;
xnode = rxml_get_xnode(self);
xlt = xlinkIsLink(xnode->doc, xnode);
if (xlt == XLINK_TYPE_NONE)
return (Qnil);
else
return (INT2NUM(xlt));
}
|
#xlink_type_name ⇒ Object
Obtain the type name for this xlink, if applicable. If this is not an xlink node (see xlink?
), will return nil.
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# File 'ext/libxml/ruby_xml_node.c', line 833
static VALUE rxml_node_xlink_type_name(VALUE self)
{
xmlNodePtr xnode;
xlinkType xlt;
xnode = rxml_get_xnode(self);
xlt = xlinkIsLink(xnode->doc, xnode);
switch (xlt)
{
case XLINK_TYPE_NONE:
return (Qnil);
case XLINK_TYPE_SIMPLE:
return (rxml_new_cstr((const xmlChar*)"simple", NULL));
case XLINK_TYPE_EXTENDED:
return (rxml_new_cstr((const xmlChar*)"extended", NULL));
case XLINK_TYPE_EXTENDED_SET:
return (rxml_new_cstr((const xmlChar*)"extended_set", NULL));
default:
rb_fatal("Unknowng xlink type, %d", xlt);
}
}
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