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xml_comment.c
57 lines (46 loc) · 1.5 KB
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xml_comment.c
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#include <nokogiri.h>
VALUE cNokogiriXmlComment;
static ID document_id ;
/*
* call-seq:
* new(document_or_node, content)
*
* Create a new Comment element on the +document+ with +content+.
* Alternatively, if a +node+ is passed, the +node+'s document is used.
*/
static VALUE
new (int argc, VALUE *argv, VALUE klass)
{
xmlDocPtr xml_doc;
xmlNodePtr node;
VALUE document;
VALUE content;
VALUE rest;
VALUE rb_node;
rb_scan_args(argc, argv, "2*", &document, &content, &rest);
Check_Type(content, T_STRING);
if (rb_obj_is_kind_of(document, cNokogiriXmlNode)) {
document = rb_funcall(document, document_id, 0);
} else if (!rb_obj_is_kind_of(document, cNokogiriXmlDocument)
&& !rb_obj_is_kind_of(document, cNokogiriXmlDocumentFragment)) {
rb_raise(rb_eArgError, "first argument must be a XML::Document or XML::Node");
}
xml_doc = noko_xml_document_unwrap(document);
node = xmlNewDocComment(xml_doc, (const xmlChar *)StringValueCStr(content));
noko_xml_document_pin_node(node);
rb_node = noko_xml_node_wrap(klass, node);
rb_obj_call_init(rb_node, argc, argv);
if (rb_block_given_p()) { rb_yield(rb_node); }
return rb_node;
}
void
noko_init_xml_comment(void)
{
assert(cNokogiriXmlCharacterData);
/*
* Comment represents a comment node in an xml document.
*/
cNokogiriXmlComment = rb_define_class_under(mNokogiriXml, "Comment", cNokogiriXmlCharacterData);
rb_define_singleton_method(cNokogiriXmlComment, "new", new, -1);
document_id = rb_intern("document");
}