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Path: /opt/chef.upgrade/embedded/lib/ruby/gems/2.3.0/gems/nokogiri-1.7.2/ext/nokogiri/

Viewing File: xml_attr.c

#include <xml_attr.h>

/*
 * call-seq:
 *  value=(content)
 *
 * Set the value for this Attr to +content+
 */
static VALUE set_value(VALUE self, VALUE content)
{
  xmlAttrPtr attr;
  Data_Get_Struct(self, xmlAttr, attr);

  if(attr->children) xmlFreeNodeList(attr->children);

  attr->children = attr->last = NULL;

  if(content) {
    xmlChar *buffer;
    xmlNode *tmp;

    /* Encode our content */
    buffer = xmlEncodeEntitiesReentrant(attr->doc, (unsigned char *)StringValueCStr(content));

    attr->children = xmlStringGetNodeList(attr->doc, buffer);
    attr->last = NULL;
    tmp = attr->children;

    /* Loop through the children */
    for(tmp = attr->children; tmp; tmp = tmp->next) {
      tmp->parent = (xmlNode *)attr;
      tmp->doc = attr->doc;
      if(tmp->next == NULL) attr->last = tmp;
    }

    /* Free up memory */
    xmlFree(buffer);
  }

  return content;
}

/*
 * call-seq:
 *  new(document, name)
 *
 * Create a new Attr element on the +document+ with +name+
 */
static VALUE new(int argc, VALUE *argv, VALUE klass)
{
  xmlDocPtr xml_doc;
  VALUE document;
  VALUE name;
  VALUE rest;
  xmlAttrPtr node;
  VALUE rb_node;

  rb_scan_args(argc, argv, "2*", &document, &name, &rest);

  Data_Get_Struct(document, xmlDoc, xml_doc);

  node = xmlNewDocProp(
      xml_doc,
      (const xmlChar *)StringValueCStr(name),
      NULL
  );

  nokogiri_root_node((xmlNodePtr)node);

  rb_node = Nokogiri_wrap_xml_node(klass, (xmlNodePtr)node);
  rb_obj_call_init(rb_node, argc, argv);

  if(rb_block_given_p()) rb_yield(rb_node);

  return rb_node;
}

VALUE cNokogiriXmlAttr;
void init_xml_attr()
{
  VALUE nokogiri = rb_define_module("Nokogiri");
  VALUE xml = rb_define_module_under(nokogiri, "XML");
  VALUE node = rb_define_class_under(xml, "Node", rb_cObject);

  /*
   * Attr represents a Attr node in an xml document.
   */
  VALUE klass = rb_define_class_under(xml, "Attr", node);

  cNokogiriXmlAttr = klass;

  rb_define_singleton_method(klass, "new", new, -1);
  rb_define_method(klass, "value=", set_value, 1);
}