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File: //usr/local/rvm/gems/default/gems/nokogiri-1.12.5-x86_64-linux/ext/nokogiri/nokogiri.h
#ifndef NOKOGIRI_NATIVE
#define NOKOGIRI_NATIVE

#ifdef _MSC_VER
#  ifndef WIN32_LEAN_AND_MEAN
#    define WIN32_LEAN_AND_MEAN
#  endif /* WIN32_LEAN_AND_MEAN */

#  ifndef WIN32
#    define WIN32
#  endif /* WIN32 */

#  include <winsock2.h>
#  include <ws2tcpip.h>
#  include <windows.h>
#endif

#ifdef _WIN32
#  define NOKOPUBFUN __declspec(dllexport)
#  define NOKOPUBVAR __declspec(dllexport) extern
#else
#  define NOKOPUBFUN
#  define NOKOPUBVAR extern
#endif


#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>


#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/entities.h>
#include <libxml/xpath.h>
#include <libxml/xmlreader.h>
#include <libxml/xmlsave.h>
#include <libxml/xmlschemas.h>
#include <libxml/HTMLparser.h>
#include <libxml/HTMLtree.h>
#include <libxml/relaxng.h>
#include <libxml/xinclude.h>
#include <libxml/c14n.h>
#include <libxml/parserInternals.h>
#include <libxml/xpathInternals.h>

#include <libxslt/extensions.h>
#include <libxslt/xsltconfig.h>
#include <libxslt/xsltutils.h>
#include <libxslt/transform.h>
#include <libxslt/xsltInternals.h>

#include <libexslt/exslt.h>

/* libxml2_backwards_compat.c */
#ifndef HAVE_XMLFIRSTELEMENTCHILD
xmlNodePtr xmlFirstElementChild(xmlNodePtr parent);
xmlNodePtr xmlNextElementSibling(xmlNodePtr node);
xmlNodePtr xmlLastElementChild(xmlNodePtr parent);
#endif

#define XMLNS_PREFIX "xmlns"
#define XMLNS_PREFIX_LEN 6 /* including either colon or \0 */


#include <ruby.h>
#include <ruby/st.h>
#include <ruby/encoding.h>
#include <ruby/util.h>
#include <ruby/version.h>

#define NOKOGIRI_STR_NEW2(str) NOKOGIRI_STR_NEW(str, strlen((const char *)(str)))
#define NOKOGIRI_STR_NEW(str, len) rb_external_str_new_with_enc((const char *)(str), (long)(len), rb_utf8_encoding())
#define RBSTR_OR_QNIL(_str) (_str ? NOKOGIRI_STR_NEW2(_str) : Qnil)

#ifdef DEBUG
#  define NOKOGIRI_DEBUG_START(p) if (getenv("NOKOGIRI_NO_FREE")) return ; if (getenv("NOKOGIRI_DEBUG")) fprintf(stderr,"nokogiri: %s:%d %p start\n", __FILE__, __LINE__, p);
#  define NOKOGIRI_DEBUG_END(p) if (getenv("NOKOGIRI_DEBUG")) fprintf(stderr,"nokogiri: %s:%d %p end\n", __FILE__, __LINE__, p);
#else
#  define NOKOGIRI_DEBUG_START(p)
#  define NOKOGIRI_DEBUG_END(p)
#endif

#ifndef NORETURN
#  if defined(__GNUC__)
#    define NORETURN(name) __attribute__((noreturn)) name
#  else
#    define NORETURN(name) name
#  endif
#endif


NOKOPUBVAR VALUE mNokogiri ;
NOKOPUBVAR VALUE mNokogiriGumbo ;
NOKOPUBVAR VALUE mNokogiriHtml4 ;
NOKOPUBVAR VALUE mNokogiriHtml4Sax ;
NOKOPUBVAR VALUE mNokogiriHtml5 ;
NOKOPUBVAR VALUE mNokogiriXml ;
NOKOPUBVAR VALUE mNokogiriXmlSax ;
NOKOPUBVAR VALUE mNokogiriXmlXpath ;
NOKOPUBVAR VALUE mNokogiriXslt ;

NOKOPUBVAR VALUE cNokogiriEncodingHandler;
NOKOPUBVAR VALUE cNokogiriSyntaxError;
NOKOPUBVAR VALUE cNokogiriXmlAttr;
NOKOPUBVAR VALUE cNokogiriXmlAttributeDecl;
NOKOPUBVAR VALUE cNokogiriXmlCData;
NOKOPUBVAR VALUE cNokogiriXmlCharacterData;
NOKOPUBVAR VALUE cNokogiriXmlComment;
NOKOPUBVAR VALUE cNokogiriXmlDocument ;
NOKOPUBVAR VALUE cNokogiriXmlDocumentFragment;
NOKOPUBVAR VALUE cNokogiriXmlDtd;
NOKOPUBVAR VALUE cNokogiriXmlElement ;
NOKOPUBVAR VALUE cNokogiriXmlElementContent;
NOKOPUBVAR VALUE cNokogiriXmlElementDecl;
NOKOPUBVAR VALUE cNokogiriXmlEntityDecl;
NOKOPUBVAR VALUE cNokogiriXmlEntityReference;
NOKOPUBVAR VALUE cNokogiriXmlNamespace ;
NOKOPUBVAR VALUE cNokogiriXmlNode ;
NOKOPUBVAR VALUE cNokogiriXmlNodeSet ;
NOKOPUBVAR VALUE cNokogiriXmlProcessingInstruction;
NOKOPUBVAR VALUE cNokogiriXmlReader;
NOKOPUBVAR VALUE cNokogiriXmlRelaxNG;
NOKOPUBVAR VALUE cNokogiriXmlSaxParser ;
NOKOPUBVAR VALUE cNokogiriXmlSaxParserContext;
NOKOPUBVAR VALUE cNokogiriXmlSaxPushParser ;
NOKOPUBVAR VALUE cNokogiriXmlSchema;
NOKOPUBVAR VALUE cNokogiriXmlSyntaxError;
NOKOPUBVAR VALUE cNokogiriXmlText ;
NOKOPUBVAR VALUE cNokogiriXmlXpathContext;
NOKOPUBVAR VALUE cNokogiriXmlXpathSyntaxError;
NOKOPUBVAR VALUE cNokogiriXsltStylesheet ;

NOKOPUBVAR VALUE cNokogiriHtml4Document ;
NOKOPUBVAR VALUE cNokogiriHtml4SaxPushParser ;
NOKOPUBVAR VALUE cNokogiriHtml4ElementDescription ;
NOKOPUBVAR VALUE cNokogiriHtml4SaxParserContext;
NOKOPUBVAR VALUE cNokogiriHtml5Document ;

typedef struct _nokogiriTuple {
  VALUE         doc;
  st_table     *unlinkedNodes;
  VALUE         node_cache;
} nokogiriTuple;
typedef nokogiriTuple *nokogiriTuplePtr;

typedef struct _nokogiriSAXTuple {
  xmlParserCtxtPtr  ctxt;
  VALUE             self;
} nokogiriSAXTuple;
typedef nokogiriSAXTuple *nokogiriSAXTuplePtr;

typedef struct _libxmlStructuredErrorHandlerState {
  void *user_data;
  xmlStructuredErrorFunc handler;
} libxmlStructuredErrorHandlerState ;

typedef struct _nokogiriXsltStylesheetTuple {
  xsltStylesheetPtr ss;
  VALUE func_instances;
} nokogiriXsltStylesheetTuple;

int vasprintf(char **strp, const char *fmt, va_list ap);
void noko_xml_document_pin_node(xmlNodePtr);
void noko_xml_document_pin_namespace(xmlNsPtr, xmlDocPtr);

int noko_io_read(void *ctx, char *buffer, int len);
int noko_io_write(void *ctx, char *buffer, int len);
int noko_io_close(void *ctx);

VALUE noko_xml_node_wrap(VALUE klass, xmlNodePtr node) ;
VALUE noko_xml_node_wrap_node_set_result(xmlNodePtr node, VALUE node_set) ;
VALUE noko_xml_node_attrs(xmlNodePtr node) ;

VALUE noko_xml_namespace_wrap(xmlNsPtr node, xmlDocPtr doc);
VALUE noko_xml_namespace_wrap_xpath_copy(xmlNsPtr node);

VALUE noko_xml_element_content_wrap(VALUE doc, xmlElementContentPtr element);

VALUE noko_xml_node_set_wrap(xmlNodeSetPtr node_set, VALUE document) ;

VALUE noko_xml_document_wrap_with_init_args(VALUE klass, xmlDocPtr doc, int argc, VALUE *argv);
VALUE noko_xml_document_wrap(VALUE klass, xmlDocPtr doc);
NOKOPUBFUN VALUE Nokogiri_wrap_xml_document(VALUE klass,
    xmlDocPtr doc); /* deprecated. use noko_xml_document_wrap() instead. */

#define DOC_RUBY_OBJECT_TEST(x) ((nokogiriTuplePtr)(x->_private))
#define DOC_RUBY_OBJECT(x) (((nokogiriTuplePtr)(x->_private))->doc)
#define DOC_UNLINKED_NODE_HASH(x) (((nokogiriTuplePtr)(x->_private))->unlinkedNodes)
#define DOC_NODE_CACHE(x) (((nokogiriTuplePtr)(x->_private))->node_cache)
#define NOKOGIRI_NAMESPACE_EH(node) ((node)->type == XML_NAMESPACE_DECL)

#define NOKOGIRI_SAX_SELF(_ctxt) ((nokogiriSAXTuplePtr)(_ctxt))->self
#define NOKOGIRI_SAX_CTXT(_ctxt) ((nokogiriSAXTuplePtr)(_ctxt))->ctxt
#define NOKOGIRI_SAX_TUPLE_NEW(_ctxt, _self) nokogiri_sax_tuple_new(_ctxt, _self)
#define NOKOGIRI_SAX_TUPLE_DESTROY(_tuple) free(_tuple)

#define DISCARD_CONST_QUAL(t, v) ((t)(uintptr_t)(v))
#define DISCARD_CONST_QUAL_XMLCHAR(v) DISCARD_CONST_QUAL(xmlChar *, v)

void Nokogiri_structured_error_func_save(libxmlStructuredErrorHandlerState *handler_state);
void Nokogiri_structured_error_func_save_and_set(libxmlStructuredErrorHandlerState *handler_state, void *user_data,
    xmlStructuredErrorFunc handler);
void Nokogiri_structured_error_func_restore(libxmlStructuredErrorHandlerState *handler_state);
VALUE Nokogiri_wrap_xml_syntax_error(xmlErrorPtr error);
void Nokogiri_error_array_pusher(void *ctx, xmlErrorPtr error);
NORETURN(void Nokogiri_error_raise(void *ctx, xmlErrorPtr error));
void Nokogiri_marshal_xpath_funcall_and_return_values(xmlXPathParserContextPtr ctx, int nargs, VALUE handler,
    const char *function_name) ;

static inline
nokogiriSAXTuplePtr
nokogiri_sax_tuple_new(xmlParserCtxtPtr ctxt, VALUE self)
{
  nokogiriSAXTuplePtr tuple = malloc(sizeof(nokogiriSAXTuple));
  tuple->self = self;
  tuple->ctxt = ctxt;
  return tuple;
}

#endif /* NOKOGIRI_NATIVE */