Class: LibXML::XML::Node

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
ext/libxml/ruby_xml_node.c,
lib/libxml/node.rb,
lib/libxml/properties.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)
INT2NUM(1)
INT2NUM(0)
INT2NUM(2)
INT2NUM(2)
INT2NUM(1)
INT2NUM(0)
INT2NUM(3)
INT2NUM(2)
INT2NUM(3)
INT2NUM(0)
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

Instance Method Summary collapse

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.



258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
 
# File 'ext/libxml/ruby_xml_node.c', line 258

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(&xmlLastError);

  /* Link the Ruby object to the libxml object and vice-versa. */
  xnode->_private = (void*) self;
  DATA_PTR(self) = xnode;

  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.

Returns:



136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
 
# File 'ext/libxml/ruby_xml_node.c', line 136

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),
        RSTRING_LEN(content));
  }

  if (xnode == NULL)
    rxml_raise(&xmlLastError);

  return rxml_node_wrap(xnode);
}

.XML::Node.new_comment(content = nil) ⇒ XML::Node

Create a new comment node, optionally setting the node’s content.

Returns:



168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
 
# File 'ext/libxml/ruby_xml_node.c', line 168

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(&xmlLastError);

  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.

Returns:



199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
 
# File 'ext/libxml/ruby_xml_node.c', line 199

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(&xmlLastError);

  return rxml_node_wrap(xnode);
}

.XML::Node.new_text(content) ⇒ XML::Node

Create a new text node.

Returns:



235
236
237
238
239
240
241
242
243
244
245
246
247
 
# File 'ext/libxml/ruby_xml_node.c', line 235

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(&xmlLastError);

  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.



491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
 
# File 'ext/libxml/ruby_xml_node.c', line 491

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.



1105
1106
1107
1108
1109
 
# File 'ext/libxml/ruby_xml_node.c', line 1105

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.



1117
1118
1119
1120
1121
 
# File 'ext/libxml/ruby_xml_node.c', line 1117

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

Returns:

  • (Boolean) 


207
208
209
 
# 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

Returns:

  • (Boolean) 


212
213
214
 
# File 'lib/libxml/node.rb', line 212

def attribute_decl?
  node_type == ATTRIBUTE_DECL
end

#attributes ⇒ Object

Returns the XML::Attributes for this node.



1090
1091
1092
1093
1094
1095
1096
 
# File 'ext/libxml/ruby_xml_node.c', line 1090

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

Returns:

  • (Boolean) 


9
10
11
 
# File 'lib/libxml/node.rb', line 9

def attributes?
  attributes.length > 0
end

#base ⇒ Object 



366
367
368
369
 
# File 'lib/libxml/node.rb', line 366

def base
  warn('Node#base is deprecated.  Use Node#base_uri.')
  self.base_uri
end

#base=(value) ⇒ Object 



371
372
373
374
 
# File 'lib/libxml/node.rb', line 371

def base=(value)
  warn('Node#base= is deprecated.  Use Node#base_uri=.')
  self.base_uri = value
end

#base_uri ⇒ Object

Obtain this node’s base URI.



326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
 
# File 'ext/libxml/ruby_xml_node.c', line 326

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((const char*) base_uri, NULL);
    xmlFree(base_uri);
  }

  return (result);
}

#base_uri=(uri) ⇒ Object

Set this node’s base URI.



355
356
357
358
359
360
361
362
363
364
365
366
 
# File 'ext/libxml/ruby_xml_node.c', line 355

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.

Returns:

  • (Boolean) 


677
678
679
680
681
682
683
684
685
 
# File 'ext/libxml/ruby_xml_node.c', line 677

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

Returns:

  • (Boolean) 


217
218
219
 
# File 'lib/libxml/node.rb', line 217

def cdata?
  node_type == CDATA_SECTION_NODE
end

#child=(node) ⇒ Object 



325
326
327
328
 
# File 'lib/libxml/node.rb', line 325

def child=(node)
  warn('Node#child= is deprecated.  Use Node#<< instead.')
  self << node
end

#child_add(node) ⇒ Object

— Deprecated DOM Manipulation —



320
321
322
323
 
# File 'lib/libxml/node.rb', line 320

def child_add(node)
  warn('Node#child_add is deprecated.  Use Node#<< instead.')
  self << node
end

#children ⇒ Object

Returns this node’s children as an array.



131
132
133
 
# 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)



15
16
17
 
# File 'lib/libxml/node.rb', line 15

def clone
  copy(false)
end

#comment? ⇒ Boolean

Specifies if this is an comment node

Returns:

  • (Boolean) 


222
223
224
 
# File 'lib/libxml/node.rb', line 222

def comment?
  node_type == COMMENT_NODE
end

#content ⇒ Object

Obtain this node’s content as a string.



374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
 
# File 'ext/libxml/ruby_xml_node.c', line 374

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((const char *) content, NULL);
    xmlFree(content);
  }

  return result;
}

#content=(content) ⇒ Object

Set this node’s content to the specified string.



397
398
399
400
401
402
403
404
405
406
407
 
# File 'ext/libxml/ruby_xml_node.c', line 397

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);
  return (Qtrue);
}

#content_stripped ⇒ Object

Obtain this node’s stripped content.

Deprecated: Stripped content can be obtained via the content method.



418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
 
# File 'ext/libxml/ruby_xml_node.c', line 418

static VALUE rxml_node_content_stripped_get(VALUE self)
{
  xmlNodePtr xnode;
  xmlChar* content;
  VALUE result = Qnil;

  xnode = rxml_get_xnode(self);

  if (!xnode->content)
    return result;

  content = xmlNodeGetContent(xnode);
  if (content)
  {
    result = rxml_new_cstr((const char*) content, NULL);
    xmlFree(content);
  }
  return (result);
}

#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



53
54
55
56
57
58
59
60
61
62
63
64
 
# 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.

Returns:



1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
 
# File 'ext/libxml/ruby_xml_node.c', line 1321

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.



445
446
447
448
449
450
451
452
453
454
455
456
 
# File 'ext/libxml/ruby_xml_node.c', line 445

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.



523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
 
# File 'ext/libxml/ruby_xml_node.c', line 523

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);
  else if (xdoc->_private)
    return (VALUE) xdoc->_private;
  else
    return (Qnil);
}

#docbook_doc? ⇒ Boolean

Specifies if this is an docbook node

Returns:

  • (Boolean) 


227
228
229
 
# 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

Returns:

  • (Boolean) 


232
233
234
 
# File 'lib/libxml/node.rb', line 232

def doctype?
  node_type == DOCUMENT_TYPE_NODE
end

#document? ⇒ Boolean

Specifies if this is an document node

Returns:

  • (Boolean) 


237
238
239
 
# File 'lib/libxml/node.rb', line 237

def document?
  node_type == DOCUMENT_NODE
end

#dtd? ⇒ Boolean

Specifies if this is an DTD node

Returns:

  • (Boolean) 


242
243
244
 
# File 'lib/libxml/node.rb', line 242

def dtd?
  node_type == DTD_NODE
end

#dump ⇒ Object

— Deprecated Output — :stopdoc:



314
315
316
317
 
# File 'lib/libxml/node.rb', line 314

def dump
  warn('Node#dump is deprecated.  Use Node#to_s instead.')
  self.to_s
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)



43
44
45
 
# File 'lib/libxml/node.rb', line 43

def dup
  copy(false)
end

#each ⇒ XML::Node Also known as: each_child

Iterates over this node’s children, including text nodes, element nodes, etc. If you wish to iterate only over child elements, use XML::Node#each_element.

doc = XML::Document.new('model/books.xml')
doc.root.each {|node| puts node}

Returns:



651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
 
# File 'ext/libxml/ruby_xml_node.c', line 651

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

——- Traversal —————- Iterates over this node’s attributes.

doc = XML::Document.new('model/books.xml')
doc.root.each_attr {|attr| puts attr}



103
104
105
106
107
 
# File 'lib/libxml/node.rb', line 103

def each_attr
  attributes.each do |attr|
    yield(attr)
  end
end

#each_element ⇒ Object

Iterates over this node’s child elements (nodes that have a node_type == ELEMENT_NODE).

doc = XML::Document.new('model/books.xml')
doc.root.each_element {|element| puts element}



114
115
116
117
118
 
# 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

Returns:

  • (Boolean) 


247
248
249
 
# 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

Returns:

  • (Boolean) 


257
258
259
 
# 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.

Returns:

  • (Boolean) 


677
678
679
680
681
682
683
684
685
 
# File 'ext/libxml/ruby_xml_node.c', line 677

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

Returns:

  • (Boolean) 


252
253
254
 
# 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

Returns:

  • (Boolean) 


262
263
264
 
# 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 or have the same XML representation.

Returns:

  • (Boolean) 


694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
 
# File 'ext/libxml/ruby_xml_node.c', line 694

static VALUE rxml_node_eql_q(VALUE self, VALUE other)
{
  if(self == other)
  {
    return Qtrue;
  }
  else if (NIL_P(other))
  {
    return Qfalse;
  }
  else
  {
    VALUE self_xml;
    VALUE other_xml;

    if (rb_obj_is_kind_of(other, cXMLNode) == Qfalse)
      rb_raise(rb_eTypeError, "Nodes can only be compared against other nodes");

    self_xml = rxml_node_to_s(0, NULL, self);
    other_xml = rxml_node_to_s(0, NULL, other);
    return(rb_funcall(self_xml, rb_intern("=="), 1, other_xml));
  }
}

#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



74
75
76
 
# 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.



84
85
86
 
# 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.

Returns:



464
465
466
467
468
469
470
471
472
473
474
 
# File 'ext/libxml/ruby_xml_node.c', line 464

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

Returns:

  • (Boolean) 


126
127
128
 
# File 'lib/libxml/node.rb', line 126

def first?
  not first.nil?
end

#fragment? ⇒ Boolean

Specifies if this is a fragment node

Returns:

  • (Boolean) 


267
268
269
 
# 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

Returns:

  • (Boolean) 


272
273
274
 
# 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.



26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/libxml/node.rb', line 26

def inner_xml(options = Hash.new)
  io = nil
  self.each do |node|
    xml = node.to_s(options)
    # 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.



725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
 
# File 'ext/libxml/ruby_xml_node.c', line 725

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((const char*) lang, NULL);
    xmlFree(lang);
  }

  return (result);
}

#lang=(lang) ⇒ Object

Set the language for this node. This affects the value of the xml:lang attribute.



752
753
754
755
756
757
758
759
760
761
 
# File 'ext/libxml/ruby_xml_node.c', line 752

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.

Returns:



769
770
771
772
773
774
775
776
777
778
779
 
# File 'ext/libxml/ruby_xml_node.c', line 769

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

Returns:

  • (Boolean) 


146
147
148
 
# 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.

Returns:

  • (Numeric) 


789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
 
# File 'ext/libxml/ruby_xml_node.c', line 789

static VALUE rxml_node_line_num(VALUE self)
{
  xmlNodePtr xnode;
  long line_num;
  xnode = rxml_get_xnode(self);

  if (!xmlLineNumbersDefaultValue)
    rb_warn(
        "Line numbers were not retained: use XML::Parser::default_line_numbers=true");

  line_num = xmlGetLineNo(xnode);
  if (line_num == -1)
    return (Qnil);
  else
    return (INT2NUM((long) line_num));
}

#name ⇒ Object

Obtain this node’s name.



885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
 
# File 'ext/libxml/ruby_xml_node.c', line 885

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((const char*) name, NULL));
}

#name=(name) ⇒ Object

Set this node’s name.



933
934
935
936
937
938
939
940
941
942
943
944
945
946
 
# File 'ext/libxml/ruby_xml_node.c', line 933

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 ⇒ Object

— Deprecated Namespaces —



331
332
333
334
 
# File 'lib/libxml/node.rb', line 331

def namespace
  warn('Node#namespace is deprecated.  Use Node#namespaces instead.')
  self.namespaces.entries
end

#namespace=(value) ⇒ Object 



336
337
338
339
 
# File 'lib/libxml/node.rb', line 336

def namespace=(value)
  warn('Node#namespace= is deprecated.  Use Node#namespaces.namespace= instead.')
  self.namespaces.namespace = value
end

#namespace? ⇒ Boolean

Specifies if this is a namespace node (not if it has a namepsace)

Returns:

  • (Boolean) 


278
279
280
 
# File 'lib/libxml/node.rb', line 278

def namespace?
  node_type == NAMESPACE_DECL
end

#namespace_node ⇒ Object 



341
342
343
344
 
# File 'lib/libxml/node.rb', line 341

def namespace_node
  warn('Node#namespace_node is deprecated.  Use Node#namespaces.namespace instead.')
  self.namespaces.namespace
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.



94
95
96
 
# 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.

Returns:



954
955
956
957
958
959
960
961
962
963
964
 
# File 'ext/libxml/ruby_xml_node.c', line 954

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.



976
977
978
979
 
# File 'ext/libxml/ruby_xml_node.c', line 976

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

Returns:

  • (Boolean) 


136
137
138
 
# File 'lib/libxml/node.rb', line 136

def next?
  not self.next.nil?
end

#type ⇒ Numeric

Obtain this node’s type identifier.

Returns:

  • (Numeric) 


1304
1305
1306
1307
1308
1309
 
# File 'ext/libxml/ruby_xml_node.c', line 1304

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



154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
 
# 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

Returns:

  • (Boolean) 


283
284
285
 
# File 'lib/libxml/node.rb', line 283

def notation?
  node_type == NOTATION_NODE
end

#ns ⇒ Object 



346
347
348
349
 
# File 'lib/libxml/node.rb', line 346

def ns
  warn('Node#ns is deprecated.  Use Node#namespaces.namespace instead.')
  self.namespaces.namespace
end

#ns? ⇒ Boolean

Returns:

  • (Boolean) 


351
352
353
354
 
# File 'lib/libxml/node.rb', line 351

def ns?
  warn('Node#ns? is deprecated.  Use !Node#namespaces.namespace.nil? instead.')
  !self.namespaces.namespace.nil?
end

#ns_def ⇒ Object 



356
357
358
359
 
# File 'lib/libxml/node.rb', line 356

def ns_def
  warn('Node#ns_def is deprecated.  Use Node#namespaces.definitions instead.')
  self.namespaces.definitions
end

#ns_def? ⇒ Boolean

Returns:

  • (Boolean) 


361
362
363
364
 
# File 'lib/libxml/node.rb', line 361

def ns_def?
  warn('Node#ns_def? is deprecated.  Use !Node#namespaces.definitions.nil? instead.')
  !self.namespaces.definitions.nil?
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.



1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
 
# File 'ext/libxml/ruby_xml_node.c', line 1239

static VALUE rxml_node_output_escaping_set(VALUE self, VALUE bool)
{
  xmlNodePtr xnode;
  xnode = rxml_get_xnode(self);

  switch (xnode->type) {
  case XML_TEXT_NODE:
    xnode->name = (bool!=Qfalse && bool!=Qnil) ? xmlStringText : xmlStringTextNoenc;
    break;
  case XML_ELEMENT_NODE:
  case XML_ATTRIBUTE_NODE:
    {
      const xmlChar *name = (bool!=Qfalse && bool!=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 (bool!=Qfalse && bool!=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.

Returns:

  • (Boolean) 


1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
 
# File 'ext/libxml/ruby_xml_node.c', line 1192

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.

Returns:



987
988
989
990
991
992
993
994
995
996
997
 
# File 'ext/libxml/ruby_xml_node.c', line 987

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

Returns:

  • (Boolean) 


121
122
123
 
# File 'lib/libxml/node.rb', line 121

def parent?
  not parent.nil?
end

#path ⇒ Object

Obtain this node’s path.



1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
 
# File 'ext/libxml/ruby_xml_node.c', line 1005

static VALUE rxml_node_path(VALUE self)
{
  xmlNodePtr xnode;
  xmlChar *path;

  xnode = rxml_get_xnode(self);
  path = xmlGetNodePath(xnode);

  if (path == NULL)
    return (Qnil);
  else
    return (rxml_new_cstr((const char*) path, NULL));
}

#pi? ⇒ Boolean

Specifies if this is a processiong instruction node

Returns:

  • (Boolean) 


288
289
290
 
# File 'lib/libxml/node.rb', line 288

def pi?
  node_type == PI_NODE
end

#pointer ⇒ XML::NodeSet

Evaluates an XPointer expression relative to this node.

Returns:

  • (XML::NodeSet) 


1025
1026
1027
1028
 
# File 'ext/libxml/ruby_xml_node.c', line 1025

static VALUE rxml_node_pointer(VALUE self, VALUE xptr_str)
{
  return (rxml_xpointer_point2(self, xptr_str));
}

#prev ⇒ XML::Node

Obtain the previous sibling, if any.

Returns:



1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
 
# File 'ext/libxml/ruby_xml_node.c', line 1036

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.



1079
1080
1081
1082
 
# File 'ext/libxml/ruby_xml_node.c', line 1079

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

Returns:

  • (Boolean) 


141
142
143
 
# File 'lib/libxml/node.rb', line 141

def prev?
  not prev.nil?
end

#properties ⇒ Object 



11
12
13
14
 
# File 'lib/libxml/properties.rb', line 11

def properties
  warn('Node#properties is deprecated.  Use Node#attributes instead.')
  self.attributes
end

#properties? ⇒ Boolean

Returns:

  • (Boolean) 


16
17
18
19
 
# File 'lib/libxml/properties.rb', line 16

def properties?
  warn('Node#properties? is deprecated.  Use Node#attributes? instead.')
  self.attributes?
end

#property(name) ⇒ Object 



6
7
8
9
 
# File 'lib/libxml/properties.rb', line 6

def property(name)
  warn('Node#properties is deprecated.  Use Node#[] instead.')
  self[name]
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.



1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
 
# File 'ext/libxml/ruby_xml_node.c', line 1132

static VALUE rxml_node_remove_ex(VALUE self)
{
  xmlNodePtr xnode, xresult;
  xnode = rxml_get_xnode(self);

  /* First unlink the node from its parent. */
  xmlUnlinkNode(xnode);

  /* Now copy the node we want to remove and make the
     current Ruby object point to it.  We do this because
     a node has a number of dependencies on its parent
     document - its name (if using a dictionary), entities,
     namespaces, etc.  For a node to live on its own, it
     needs to get its own copies of this information.*/
  xresult = xmlDocCopyNode(xnode, NULL, 1);
  
  /* Now free the original node. */
  xmlFreeNode(xnode);

  /* Now wrap the new node */
  RDATA(self)->data = xresult;
  xresult->_private = (void*) self;

  /* Now return the removed node so the user can
     do something with it.*/
  return self;
}

#search_href(href) ⇒ Object 



381
382
383
384
 
# File 'lib/libxml/node.rb', line 381

def search_href(href)
  warn('Node#search_href is deprecated.  Use Node#namespaces.find_by_href instead.')
  self.namespaces.find_by_href(href)
end

#search_ns(prefix) ⇒ Object 



376
377
378
379
 
# File 'lib/libxml/node.rb', line 376

def search_ns(prefix)
  warn('Node#search_ns is deprecated.  Use Node#namespaces.find_by_prefix instead.')
  self.namespaces.find_by_prefix(prefix)
end

#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.



1170
1171
1172
1173
 
# File 'ext/libxml/ruby_xml_node.c', line 1170

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.



1271
1272
1273
1274
1275
1276
1277
 
# File 'ext/libxml/ruby_xml_node.c', line 1271

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.



1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
 
# File 'ext/libxml/ruby_xml_node.c', line 1285

static VALUE rxml_node_space_preserve_set(VALUE self, VALUE bool)
{
  xmlNodePtr xnode;
  xnode = rxml_get_xnode(self);

  if (TYPE(bool) == T_FALSE)
    xmlNodeSetSpacePreserve(xnode, 0);
  else
    xmlNodeSetSpacePreserve(xnode, 1);

  return (Qnil);
}

#text? ⇒ Boolean

Specifies if this is a text node

Returns:

  • (Boolean) 


293
294
295
 
# 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.

Overloads:

  • #to_s(: indent) ⇒ true

    Returns:

    • (true) 


578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
 
# File 'ext/libxml/ruby_xml_node.c', line 578

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 char *xencoding = "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 = xmlGetCharEncodingName((xmlCharEncoding)NUM2INT(rencoding));
      if (!xencoding)
        rb_raise(rb_eArgError, "Unknown encoding value: %d", NUM2INT(rencoding));
    }
  }

  encodingHandler = xmlFindCharEncodingHandler(xencoding);
  output = xmlAllocOutputBuffer(encodingHandler);

  xnode = rxml_get_xnode(self);

  xmlNodeDumpOutput(output, xnode->doc, xnode, level, indent, xencoding);
  xmlOutputBufferFlush(output);

#ifdef LIBXML2_NEW_BUFFER
  if (output->conv)
    result = rxml_new_cstr((const char*) xmlBufContent(output->conv), xencoding);
  else
    result = rxml_new_cstr((const char*) xmlBufContent(output->buffer), xencoding);
#else
  if (output->conv)
    result = rxml_new_cstr((const char*) output->conv->content, xencoding);
  else
    result = rxml_new_cstr((const char*) output->buffer->content, xencoding);
#endif

  xmlOutputBufferClose(output);
  
  return result;
}

#xinclude_end? ⇒ Boolean

Specifies if this is an xinclude end node

Returns:

  • (Boolean) 


298
299
300
 
# 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

Returns:

  • (Boolean) 


303
304
305
 
# 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.

Returns:

  • (Boolean) 


812
813
814
815
816
817
818
819
820
821
822
823
824
 
# File 'ext/libxml/ruby_xml_node.c', line 812

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.

Returns:

  • (Numeric) 


834
835
836
837
838
839
840
841
842
843
844
845
846
 
# File 'ext/libxml/ruby_xml_node.c', line 834

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.



856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
 
# File 'ext/libxml/ruby_xml_node.c', line 856

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("simple", NULL));
  case XLINK_TYPE_EXTENDED:
    return (rxml_new_cstr("extended", NULL));
  case XLINK_TYPE_EXTENDED_SET:
    return (rxml_new_cstr("extended_set", NULL));
  default:
    rb_fatal("Unknowng xlink type, %d", xlt);
  }
}