Viewing file:  xml_attr.c (2.23 KB) -rw-r--r--
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#include <xml_attr.h>
/*
* call-seq:
* value=(content)
*
* Set the value for this Attr to +content+. Use `nil` to remove the value
* (e.g., a HTML boolean attribute).
*/
static VALUE set_value(VALUE self, VALUE content)
{
xmlAttrPtr attr;
xmlChar *value;
xmlNode *cur;
Data_Get_Struct(self, xmlAttr, attr);
if (attr->children) {
xmlFreeNodeList(attr->children);
}
attr->children = attr->last = NULL;
if (content == Qnil) {
return content;
}
value = xmlEncodeEntitiesReentrant(attr->doc, (unsigned char *)StringValueCStr(content));
if (xmlStrlen(value) == 0) {
attr->children = xmlNewDocText(attr->doc, value);
} else {
attr->children = xmlStringGetNodeList(attr->doc, value);
}
xmlFree(value);
for (cur = attr->children; cur; cur = cur->next) {
cur->parent = (xmlNode *)attr;
cur->doc = attr->doc;
if (cur->next == NULL) {
attr->last = cur;
}
}
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);
if (! rb_obj_is_kind_of(document, cNokogiriXmlDocument)) {
rb_raise(rb_eArgError, "parameter must be a Nokogiri::XML::Document");
}
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);
}
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