include/libxml/HTMLparser.h - third_party/libxml2 - Git at Google

 /**
  * @file
  *
  * @brief HTML parser, doesn't support HTML5
  *
  * This module orginally implemented an HTML parser based on the
  * (underspecified) HTML 4.0 spec. As of 2.14, the tokenizer
  * conforms to HTML5. Tree construction still follows a custom,
  * unspecified algorithm with many differences to HTML5.
  *
  * The parser defaults to ISO-8859-1, the default encoding of
  * HTTP/1.0.
  *
  * @copyright See Copyright for the status of this software.
  *
  * @author Daniel Veillard
  */

 #ifndef __HTML_PARSER_H__
 #define __HTML_PARSER_H__
 #include <libxml/xmlversion.h>
 #include <libxml/parser.h>

 #ifdef LIBXML_HTML_ENABLED

 #ifdef __cplusplus
 extern "C" {
 #endif

 /*
  * Backward compatibility
  */
 #define UTF8ToHtml htmlUTF8ToHtml
 #define htmlDefaultSubelement(elt) elt->defaultsubelt
 #define htmlElementAllowedHereDesc(parent,elt) \
 	htmlElementAllowedHere((parent), (elt)->name)
 #define htmlRequiredAttrs(elt) (elt)->attrs_req

 /*
  * Most of the back-end structures from XML and HTML are shared.
  */
 /** Same as xmlParserCtxt */
 typedef xmlParserCtxt htmlParserCtxt;
 typedef xmlParserCtxtPtr htmlParserCtxtPtr;
 typedef xmlParserNodeInfo htmlParserNodeInfo;
 /** Same as xmlSAXHandler */
 typedef xmlSAXHandler htmlSAXHandler;
 typedef xmlSAXHandlerPtr htmlSAXHandlerPtr;
 /** Same as xmlParserInput */
 typedef xmlParserInput htmlParserInput;
 typedef xmlParserInputPtr htmlParserInputPtr;
 typedef xmlDocPtr htmlDocPtr;
 typedef xmlNodePtr htmlNodePtr;

 /** @cond ignore */

 /*
  * Internal description of an HTML element, representing HTML 4.01
  * and XHTML 1.0 (which share the same structure).
  */
 typedef struct _htmlElemDesc htmlElemDesc;
 typedef htmlElemDesc *htmlElemDescPtr;
 struct _htmlElemDesc {
     const char *name;	/* The tag name */
     char startTag;      /* unused */
     char endTag;        /* Whether the end tag can be implied */
     char saveEndTag;    /* unused */
     char empty;         /* Is this an empty element ? */
     char depr;          /* unused */
     char dtd;           /* unused */
     char isinline;      /* is this a block 0 or inline 1 element */
     const char *desc;   /* the description */

     const char** subelts XML_DEPRECATED_MEMBER;
     const char* defaultsubelt XML_DEPRECATED_MEMBER;
     const char** attrs_opt XML_DEPRECATED_MEMBER;
     const char** attrs_depr XML_DEPRECATED_MEMBER;
     const char** attrs_req XML_DEPRECATED_MEMBER;

     int dataMode;
 };

 /*
  * Internal description of an HTML entity.
  */
 typedef struct _htmlEntityDesc htmlEntityDesc;
 typedef htmlEntityDesc *htmlEntityDescPtr;
 struct _htmlEntityDesc {
     unsigned int value;	/* the UNICODE value for the character */
     const char *name;	/* The entity name */
     const char *desc;   /* the description */
 };

 #ifdef LIBXML_SAX1_ENABLED
 /**
  * @deprecated Use #xmlSAX2InitHtmlDefaultSAXHandler
  */
 XML_DEPRECATED
 XMLPUBVAR const xmlSAXHandlerV1 htmlDefaultSAXHandler;
 #endif /* LIBXML_SAX1_ENABLED */

 /** @endcond */

 /*
  * There is only few public functions.
  */
 XML_DEPRECATED
 XMLPUBFUN void
 			htmlInitAutoClose	(void);
 XML_DEPRECATED
 XMLPUBFUN const htmlElemDesc *
 			htmlTagLookup	(const xmlChar *tag);
 XML_DEPRECATED
 XMLPUBFUN const htmlEntityDesc *
 			htmlEntityLookup(const xmlChar *name);
 XML_DEPRECATED
 XMLPUBFUN const htmlEntityDesc *
 			htmlEntityValueLookup(unsigned int value);

 XML_DEPRECATED
 XMLPUBFUN int
 			htmlIsAutoClosed(xmlDoc *doc,
 					 xmlNode *elem);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlAutoCloseTag(xmlDoc *doc,
 					 const xmlChar *name,
 					 xmlNode *elem);
 XML_DEPRECATED
 XMLPUBFUN const htmlEntityDesc *
 			htmlParseEntityRef(htmlParserCtxt *ctxt,
 					 const xmlChar **str);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlParseCharRef(htmlParserCtxt *ctxt);
 XML_DEPRECATED
 XMLPUBFUN void
 			htmlParseElement(htmlParserCtxt *ctxt);

 XMLPUBFUN htmlParserCtxt *
 			htmlNewParserCtxt(void);
 XMLPUBFUN htmlParserCtxt *
 			htmlNewSAXParserCtxt(const htmlSAXHandler *sax,
 					     void *userData);

 XMLPUBFUN htmlParserCtxt *
 			htmlCreateMemoryParserCtxt(const char *buffer,
 						   int size);

 XMLPUBFUN int
 			htmlParseDocument(htmlParserCtxt *ctxt);
 XML_DEPRECATED
 XMLPUBFUN xmlDoc *
 			htmlSAXParseDoc	(const xmlChar *cur,
 					 const char *encoding,
 					 htmlSAXHandler *sax,
 					 void *userData);
 XMLPUBFUN xmlDoc *
 			htmlParseDoc	(const xmlChar *cur,
 					 const char *encoding);
 XMLPUBFUN htmlParserCtxt *
 			htmlCreateFileParserCtxt(const char *filename,
 	                                         const char *encoding);
 XML_DEPRECATED
 XMLPUBFUN xmlDoc *
 			htmlSAXParseFile(const char *filename,
 					 const char *encoding,
 					 htmlSAXHandler *sax,
 					 void *userData);
 XMLPUBFUN xmlDoc *
 			htmlParseFile	(const char *filename,
 					 const char *encoding);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlUTF8ToHtml	(unsigned char *out,
 					 int *outlen,
 					 const unsigned char *in,
 					 int *inlen);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlEncodeEntities(unsigned char *out,
 					 int *outlen,
 					 const unsigned char *in,
 					 int *inlen, int quoteChar);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlIsScriptAttribute(const xmlChar *name);
 XML_DEPRECATED
 XMLPUBFUN int
 			htmlHandleOmittedElem(int val);

 #ifdef LIBXML_PUSH_ENABLED
 /*
  * Interfaces for the Push mode.
  */
 XMLPUBFUN htmlParserCtxt *
 			htmlCreatePushParserCtxt(htmlSAXHandler *sax,
 						 void *user_data,
 						 const char *chunk,
 						 int size,
 						 const char *filename,
 						 xmlCharEncoding enc);
 XMLPUBFUN int
 			htmlParseChunk		(htmlParserCtxt *ctxt,
 						 const char *chunk,
 						 int size,
 						 int terminate);
 #endif /* LIBXML_PUSH_ENABLED */

 XMLPUBFUN void
 			htmlFreeParserCtxt	(htmlParserCtxt *ctxt);

 /*
  * New set of simpler/more flexible APIs
  */

 /**
  * This is the set of HTML parser options that can be passed to
  * #htmlReadDoc, #htmlCtxtSetOptions and other functions.
  */
 typedef enum {
     /**
      * No effect as of 2.14.0.
      */
     HTML_PARSE_RECOVER = 1<<0,
     /**
      * Do not default to a doctype if none was found.
      */
     HTML_PARSE_NODEFDTD = 1<<2,
     /**
      * Disable error and warning reports to the error handlers.
      * Errors are still accessible with xmlCtxtGetLastError().
      */
     HTML_PARSE_NOERROR = 1<<5,
     /**
      * Disable warning reports.
      */
     HTML_PARSE_NOWARNING = 1<<6,
     /**
      * No effect.
      */
     HTML_PARSE_PEDANTIC = 1<<7,
     /**
      * Remove some text nodes containing only whitespace from the
      * result document. Which nodes are removed depends on a conservative
      * heuristic. The reindenting feature of the serialization code relies
      * on this option to be set when parsing. Use of this option is
      * DISCOURAGED.
      */
     HTML_PARSE_NOBLANKS = 1<<8,
     /**
      * No effect.
      */
     HTML_PARSE_NONET = 1<<11,
     /**
      * Do not add implied html, head or body elements.
      */
     HTML_PARSE_NOIMPLIED = 1<<13,
     /**
      * Store small strings directly in the node struct to save
      * memory.
     */
     HTML_PARSE_COMPACT = 1<<16,
     /**
      * Relax some internal limits. See XML_PARSE_HUGE in xmlParserOption.
      *
      * @since 2.14.0
      *
      * Use XML_PARSE_HUGE with older versions.
      */
     HTML_PARSE_HUGE = 1<<19,
     /**
      * Ignore the encoding in the HTML declaration. This option is
      * mostly unneeded these days. The only effect is to enforce
      * ISO-8859-1 decoding of ASCII-like data.
      */
     HTML_PARSE_IGNORE_ENC =1<<21,
     /**
      * Enable reporting of line numbers larger than 65535.
      *
      * @since 2.14.0
      *
      * Use XML_PARSE_BIG_LINES with older versions.
      */
     HTML_PARSE_BIG_LINES = 1<<22,
     /**
      * Make the tokenizer emit a SAX callback for each token. This results
      * in unbalanced invocations of startElement and endElement.
      *
      * For now, this is only usable to tokenize HTML5 with custom SAX
      * callbacks. A tree builder isn't implemented yet.
      *
      * @since 2.14.0
     */
     HTML_PARSE_HTML5 = 1<<26
 } htmlParserOption;

 XMLPUBFUN void
 		htmlCtxtReset		(htmlParserCtxt *ctxt);
 XMLPUBFUN int
 		htmlCtxtSetOptions	(htmlParserCtxt *ctxt,
 					 int options);
 XMLPUBFUN int
 		htmlCtxtUseOptions	(htmlParserCtxt *ctxt,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlReadDoc		(const xmlChar *cur,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlReadFile		(const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlReadMemory		(const char *buffer,
 					 int size,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlReadFd		(int fd,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlReadIO		(xmlInputReadCallback ioread,
 					 xmlInputCloseCallback ioclose,
 					 void *ioctx,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlCtxtParseDocument	(htmlParserCtxt *ctxt,
 					 xmlParserInput *input);
 XMLPUBFUN xmlDoc *
 		htmlCtxtReadDoc		(xmlParserCtxt *ctxt,
 					 const xmlChar *cur,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlCtxtReadFile		(xmlParserCtxt *ctxt,
 					 const char *filename,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlCtxtReadMemory		(xmlParserCtxt *ctxt,
 					 const char *buffer,
 					 int size,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlCtxtReadFd		(xmlParserCtxt *ctxt,
 					 int fd,
 					 const char *URL,
 					 const char *encoding,
 					 int options);
 XMLPUBFUN xmlDoc *
 		htmlCtxtReadIO		(xmlParserCtxt *ctxt,
 					 xmlInputReadCallback ioread,
 					 xmlInputCloseCallback ioclose,
 					 void *ioctx,
 					 const char *URL,
 					 const char *encoding,
 					 int options);

 /**
  * deprecated content model
  */
 typedef enum {
   HTML_NA = 0 ,		/* something we don't check at all */
   HTML_INVALID = 0x1 ,
   HTML_DEPRECATED = 0x2 ,
   HTML_VALID = 0x4 ,
   HTML_REQUIRED = 0xc /* VALID bit set so ( & HTML_VALID ) is TRUE */
 } htmlStatus ;

 /* Using htmlElemDesc rather than name here, to emphasise the fact
    that otherwise there's a lookup overhead
 */
 XML_DEPRECATED
 XMLPUBFUN htmlStatus htmlAttrAllowed(const htmlElemDesc*, const xmlChar*, int) ;
 XML_DEPRECATED
 XMLPUBFUN int htmlElementAllowedHere(const htmlElemDesc*, const xmlChar*) ;
 XML_DEPRECATED
 XMLPUBFUN htmlStatus htmlElementStatusHere(const htmlElemDesc*, const htmlElemDesc*) ;
 XML_DEPRECATED
 XMLPUBFUN htmlStatus htmlNodeStatus(xmlNode *, int) ;

 #ifdef __cplusplus
 }
 #endif

 #endif /* LIBXML_HTML_ENABLED */
 #endif /* __HTML_PARSER_H__ */
	/**
	* @file
	*
	* @brief HTML parser, doesn't support HTML5
	*
	* This module orginally implemented an HTML parser based on the
	* (underspecified) HTML 4.0 spec. As of 2.14, the tokenizer
	* conforms to HTML5. Tree construction still follows a custom,
	* unspecified algorithm with many differences to HTML5.
	*
	* The parser defaults to ISO-8859-1, the default encoding of
	* HTTP/1.0.
	*
	* @copyright See Copyright for the status of this software.
	*
	* @author Daniel Veillard
	*/

	#ifndef __HTML_PARSER_H__
	#define __HTML_PARSER_H__
	#include <libxml/xmlversion.h>
	#include <libxml/parser.h>

	#ifdef LIBXML_HTML_ENABLED

	#ifdef __cplusplus
	extern "C" {
	#endif

	/*
	* Backward compatibility
	*/
	#define UTF8ToHtml htmlUTF8ToHtml
	#define htmlDefaultSubelement(elt) elt->defaultsubelt
	#define htmlElementAllowedHereDesc(parent,elt) \
	htmlElementAllowedHere((parent), (elt)->name)
	#define htmlRequiredAttrs(elt) (elt)->attrs_req

	/*
	* Most of the back-end structures from XML and HTML are shared.
	*/
	/** Same as xmlParserCtxt */
	typedef xmlParserCtxt htmlParserCtxt;
	typedef xmlParserCtxtPtr htmlParserCtxtPtr;
	typedef xmlParserNodeInfo htmlParserNodeInfo;
	/** Same as xmlSAXHandler */
	typedef xmlSAXHandler htmlSAXHandler;
	typedef xmlSAXHandlerPtr htmlSAXHandlerPtr;
	/** Same as xmlParserInput */
	typedef xmlParserInput htmlParserInput;
	typedef xmlParserInputPtr htmlParserInputPtr;
	typedef xmlDocPtr htmlDocPtr;
	typedef xmlNodePtr htmlNodePtr;

	/** @cond ignore */

	/*
	* Internal description of an HTML element, representing HTML 4.01
	* and XHTML 1.0 (which share the same structure).
	*/
	typedef struct _htmlElemDesc htmlElemDesc;
	typedef htmlElemDesc *htmlElemDescPtr;
	struct _htmlElemDesc {
	const char name; / The tag name */
	char startTag; /* unused */
	char endTag; /* Whether the end tag can be implied */
	char saveEndTag; /* unused */
	char empty; /* Is this an empty element ? */
	char depr; /* unused */
	char dtd; /* unused */
	char isinline; /* is this a block 0 or inline 1 element */
	const char desc; / the description */

	const char** subelts XML_DEPRECATED_MEMBER;
	const char* defaultsubelt XML_DEPRECATED_MEMBER;
	const char** attrs_opt XML_DEPRECATED_MEMBER;
	const char** attrs_depr XML_DEPRECATED_MEMBER;
	const char** attrs_req XML_DEPRECATED_MEMBER;

	int dataMode;
	};

	/*
	* Internal description of an HTML entity.
	*/
	typedef struct _htmlEntityDesc htmlEntityDesc;
	typedef htmlEntityDesc *htmlEntityDescPtr;
	struct _htmlEntityDesc {
	unsigned int value; /* the UNICODE value for the character */
	const char name; / The entity name */
	const char desc; / the description */
	};

	#ifdef LIBXML_SAX1_ENABLED
	/**
	* @deprecated Use #xmlSAX2InitHtmlDefaultSAXHandler
	*/
	XML_DEPRECATED
	XMLPUBVAR const xmlSAXHandlerV1 htmlDefaultSAXHandler;
	#endif /* LIBXML_SAX1_ENABLED */

	/** @endcond */

	/*
	* There is only few public functions.
	*/
	XML_DEPRECATED
	XMLPUBFUN void
	htmlInitAutoClose (void);
	XML_DEPRECATED
	XMLPUBFUN const htmlElemDesc *
	htmlTagLookup (const xmlChar *tag);
	XML_DEPRECATED
	XMLPUBFUN const htmlEntityDesc *
	htmlEntityLookup(const xmlChar *name);
	XML_DEPRECATED
	XMLPUBFUN const htmlEntityDesc *
	htmlEntityValueLookup(unsigned int value);

	XML_DEPRECATED
	XMLPUBFUN int
	htmlIsAutoClosed(xmlDoc *doc,
	xmlNode *elem);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlAutoCloseTag(xmlDoc *doc,
	const xmlChar *name,
	xmlNode *elem);
	XML_DEPRECATED
	XMLPUBFUN const htmlEntityDesc *
	htmlParseEntityRef(htmlParserCtxt *ctxt,
	const xmlChar **str);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlParseCharRef(htmlParserCtxt *ctxt);
	XML_DEPRECATED
	XMLPUBFUN void
	htmlParseElement(htmlParserCtxt *ctxt);

	XMLPUBFUN htmlParserCtxt *
	htmlNewParserCtxt(void);
	XMLPUBFUN htmlParserCtxt *
	htmlNewSAXParserCtxt(const htmlSAXHandler *sax,
	void *userData);

	XMLPUBFUN htmlParserCtxt *
	htmlCreateMemoryParserCtxt(const char *buffer,
	int size);

	XMLPUBFUN int
	htmlParseDocument(htmlParserCtxt *ctxt);
	XML_DEPRECATED
	XMLPUBFUN xmlDoc *
	htmlSAXParseDoc (const xmlChar *cur,
	const char *encoding,
	htmlSAXHandler *sax,
	void *userData);
	XMLPUBFUN xmlDoc *
	htmlParseDoc (const xmlChar *cur,
	const char *encoding);
	XMLPUBFUN htmlParserCtxt *
	htmlCreateFileParserCtxt(const char *filename,
	const char *encoding);
	XML_DEPRECATED
	XMLPUBFUN xmlDoc *
	htmlSAXParseFile(const char *filename,
	const char *encoding,
	htmlSAXHandler *sax,
	void *userData);
	XMLPUBFUN xmlDoc *
	htmlParseFile (const char *filename,
	const char *encoding);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlUTF8ToHtml (unsigned char *out,
	int *outlen,
	const unsigned char *in,
	int *inlen);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlEncodeEntities(unsigned char *out,
	int *outlen,
	const unsigned char *in,
	int *inlen, int quoteChar);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlIsScriptAttribute(const xmlChar *name);
	XML_DEPRECATED
	XMLPUBFUN int
	htmlHandleOmittedElem(int val);

	#ifdef LIBXML_PUSH_ENABLED
	/*
	* Interfaces for the Push mode.
	*/
	XMLPUBFUN htmlParserCtxt *
	htmlCreatePushParserCtxt(htmlSAXHandler *sax,
	void *user_data,
	const char *chunk,
	int size,
	const char *filename,
	xmlCharEncoding enc);
	XMLPUBFUN int
	htmlParseChunk (htmlParserCtxt *ctxt,
	const char *chunk,
	int size,
	int terminate);
	#endif /* LIBXML_PUSH_ENABLED */

	XMLPUBFUN void
	htmlFreeParserCtxt (htmlParserCtxt *ctxt);

	/*
	* New set of simpler/more flexible APIs
	*/

	/**
	* This is the set of HTML parser options that can be passed to
	* #htmlReadDoc, #htmlCtxtSetOptions and other functions.
	*/
	typedef enum {
	/**
	* No effect as of 2.14.0.
	*/
	HTML_PARSE_RECOVER = 1<<0,
	/**
	* Do not default to a doctype if none was found.
	*/
	HTML_PARSE_NODEFDTD = 1<<2,
	/**
	* Disable error and warning reports to the error handlers.
	* Errors are still accessible with xmlCtxtGetLastError().
	*/
	HTML_PARSE_NOERROR = 1<<5,
	/**
	* Disable warning reports.
	*/
	HTML_PARSE_NOWARNING = 1<<6,
	/**
	* No effect.
	*/
	HTML_PARSE_PEDANTIC = 1<<7,
	/**
	* Remove some text nodes containing only whitespace from the
	* result document. Which nodes are removed depends on a conservative
	* heuristic. The reindenting feature of the serialization code relies
	* on this option to be set when parsing. Use of this option is
	* DISCOURAGED.
	*/
	HTML_PARSE_NOBLANKS = 1<<8,
	/**
	* No effect.
	*/
	HTML_PARSE_NONET = 1<<11,
	/**
	* Do not add implied html, head or body elements.
	*/
	HTML_PARSE_NOIMPLIED = 1<<13,
	/**
	* Store small strings directly in the node struct to save
	* memory.
	*/
	HTML_PARSE_COMPACT = 1<<16,
	/**
	* Relax some internal limits. See XML_PARSE_HUGE in xmlParserOption.
	*
	* @since 2.14.0
	*
	* Use XML_PARSE_HUGE with older versions.
	*/
	HTML_PARSE_HUGE = 1<<19,
	/**
	* Ignore the encoding in the HTML declaration. This option is
	* mostly unneeded these days. The only effect is to enforce
	* ISO-8859-1 decoding of ASCII-like data.
	*/
	HTML_PARSE_IGNORE_ENC =1<<21,
	/**
	* Enable reporting of line numbers larger than 65535.
	*
	* @since 2.14.0
	*
	* Use XML_PARSE_BIG_LINES with older versions.
	*/
	HTML_PARSE_BIG_LINES = 1<<22,
	/**
	* Make the tokenizer emit a SAX callback for each token. This results
	* in unbalanced invocations of startElement and endElement.
	*
	* For now, this is only usable to tokenize HTML5 with custom SAX
	* callbacks. A tree builder isn't implemented yet.
	*
	* @since 2.14.0
	*/
	HTML_PARSE_HTML5 = 1<<26
	} htmlParserOption;

	XMLPUBFUN void
	htmlCtxtReset (htmlParserCtxt *ctxt);
	XMLPUBFUN int
	htmlCtxtSetOptions (htmlParserCtxt *ctxt,
	int options);
	XMLPUBFUN int
	htmlCtxtUseOptions (htmlParserCtxt *ctxt,
	int options);
	XMLPUBFUN xmlDoc *
	htmlReadDoc (const xmlChar *cur,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlReadFile (const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlReadMemory (const char *buffer,
	int size,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlReadFd (int fd,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlReadIO (xmlInputReadCallback ioread,
	xmlInputCloseCallback ioclose,
	void *ioctx,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlCtxtParseDocument (htmlParserCtxt *ctxt,
	xmlParserInput *input);
	XMLPUBFUN xmlDoc *
	htmlCtxtReadDoc (xmlParserCtxt *ctxt,
	const xmlChar *cur,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlCtxtReadFile (xmlParserCtxt *ctxt,
	const char *filename,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlCtxtReadMemory (xmlParserCtxt *ctxt,
	const char *buffer,
	int size,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlCtxtReadFd (xmlParserCtxt *ctxt,
	int fd,
	const char *URL,
	const char *encoding,
	int options);
	XMLPUBFUN xmlDoc *
	htmlCtxtReadIO (xmlParserCtxt *ctxt,
	xmlInputReadCallback ioread,
	xmlInputCloseCallback ioclose,
	void *ioctx,
	const char *URL,
	const char *encoding,
	int options);

	/**
	* deprecated content model
	*/
	typedef enum {
	HTML_NA = 0 , /* something we don't check at all */
	HTML_INVALID = 0x1 ,
	HTML_DEPRECATED = 0x2 ,
	HTML_VALID = 0x4 ,
	HTML_REQUIRED = 0xc /* VALID bit set so ( & HTML_VALID ) is TRUE */
	} htmlStatus ;

	/* Using htmlElemDesc rather than name here, to emphasise the fact
	that otherwise there's a lookup overhead
	*/
	XML_DEPRECATED
	XMLPUBFUN htmlStatus htmlAttrAllowed(const htmlElemDesc, const xmlChar, int) ;
	XML_DEPRECATED
	XMLPUBFUN int htmlElementAllowedHere(const htmlElemDesc, const xmlChar) ;
	XML_DEPRECATED
	XMLPUBFUN htmlStatus htmlElementStatusHere(const htmlElemDesc, const htmlElemDesc) ;
	XML_DEPRECATED
	XMLPUBFUN htmlStatus htmlNodeStatus(xmlNode *, int) ;

	#ifdef __cplusplus
	}
	#endif

	#endif /* LIBXML_HTML_ENABLED */
	#endif /* __HTML_PARSER_H__ */