generated from sethub/template
[libxml2]Add libxml2 library
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zhoujiale
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/**
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* @file
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*
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* @brief HTML parser, doesn't support HTML5
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*
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* This module orginally implemented an HTML parser based on the
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* (underspecified) HTML 4.0 spec. As of 2.14, the tokenizer
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* conforms to HTML5. Tree construction still follows a custom,
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* unspecified algorithm with many differences to HTML5.
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*
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* The parser defaults to ISO-8859-1, the default encoding of
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* HTTP/1.0.
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*
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* @copyright See Copyright for the status of this software.
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*
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* @author Daniel Veillard
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*/
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#ifndef __HTML_PARSER_H__
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#define __HTML_PARSER_H__
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#include <libxml/xmlversion.h>
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#include <libxml/parser.h>
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#ifdef LIBXML_HTML_ENABLED
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Backward compatibility
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*/
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#define UTF8ToHtml htmlUTF8ToHtml
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#define htmlDefaultSubelement(elt) elt->defaultsubelt
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#define htmlElementAllowedHereDesc(parent,elt) \
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htmlElementAllowedHere((parent), (elt)->name)
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#define htmlRequiredAttrs(elt) (elt)->attrs_req
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/*
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* Most of the back-end structures from XML and HTML are shared.
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*/
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/** Same as xmlParserCtxt */
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typedef xmlParserCtxt htmlParserCtxt;
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typedef xmlParserCtxtPtr htmlParserCtxtPtr;
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typedef xmlParserNodeInfo htmlParserNodeInfo;
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/** Same as xmlSAXHandler */
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typedef xmlSAXHandler htmlSAXHandler;
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typedef xmlSAXHandlerPtr htmlSAXHandlerPtr;
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/** Same as xmlParserInput */
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typedef xmlParserInput htmlParserInput;
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typedef xmlParserInputPtr htmlParserInputPtr;
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typedef xmlDocPtr htmlDocPtr;
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typedef xmlNodePtr htmlNodePtr;
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/** @cond ignore */
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/*
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* Internal description of an HTML element, representing HTML 4.01
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* and XHTML 1.0 (which share the same structure).
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*/
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typedef struct _htmlElemDesc htmlElemDesc;
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typedef htmlElemDesc *htmlElemDescPtr;
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struct _htmlElemDesc {
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const char *name; /* The tag name */
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char startTag; /* unused */
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char endTag; /* Whether the end tag can be implied */
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char saveEndTag; /* unused */
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char empty; /* Is this an empty element ? */
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char depr; /* unused */
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char dtd; /* unused */
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char isinline; /* is this a block 0 or inline 1 element */
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const char *desc; /* the description */
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const char** subelts XML_DEPRECATED_MEMBER;
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const char* defaultsubelt XML_DEPRECATED_MEMBER;
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const char** attrs_opt XML_DEPRECATED_MEMBER;
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const char** attrs_depr XML_DEPRECATED_MEMBER;
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const char** attrs_req XML_DEPRECATED_MEMBER;
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int dataMode;
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};
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/*
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* Internal description of an HTML entity.
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*/
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typedef struct _htmlEntityDesc htmlEntityDesc;
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typedef htmlEntityDesc *htmlEntityDescPtr;
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struct _htmlEntityDesc {
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unsigned int value; /* the UNICODE value for the character */
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const char *name; /* The entity name */
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const char *desc; /* the description */
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};
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#ifdef LIBXML_SAX1_ENABLED
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/**
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* @deprecated Use #xmlSAX2InitHtmlDefaultSAXHandler
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*/
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XML_DEPRECATED
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XMLPUBVAR const xmlSAXHandlerV1 htmlDefaultSAXHandler;
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#endif /* LIBXML_SAX1_ENABLED */
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/** @endcond */
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/*
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* There is only few public functions.
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*/
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XML_DEPRECATED
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XMLPUBFUN void
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htmlInitAutoClose (void);
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XML_DEPRECATED
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XMLPUBFUN const htmlElemDesc *
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htmlTagLookup (const xmlChar *tag);
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XML_DEPRECATED
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XMLPUBFUN const htmlEntityDesc *
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htmlEntityLookup(const xmlChar *name);
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XML_DEPRECATED
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XMLPUBFUN const htmlEntityDesc *
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htmlEntityValueLookup(unsigned int value);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlIsAutoClosed(xmlDoc *doc,
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xmlNode *elem);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlAutoCloseTag(xmlDoc *doc,
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const xmlChar *name,
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xmlNode *elem);
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XML_DEPRECATED
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XMLPUBFUN const htmlEntityDesc *
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htmlParseEntityRef(htmlParserCtxt *ctxt,
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const xmlChar **str);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlParseCharRef(htmlParserCtxt *ctxt);
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XML_DEPRECATED
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XMLPUBFUN void
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htmlParseElement(htmlParserCtxt *ctxt);
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XMLPUBFUN htmlParserCtxt *
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htmlNewParserCtxt(void);
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XMLPUBFUN htmlParserCtxt *
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htmlNewSAXParserCtxt(const htmlSAXHandler *sax,
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void *userData);
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XMLPUBFUN htmlParserCtxt *
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htmlCreateMemoryParserCtxt(const char *buffer,
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int size);
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XMLPUBFUN int
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htmlParseDocument(htmlParserCtxt *ctxt);
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XML_DEPRECATED
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XMLPUBFUN xmlDoc *
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htmlSAXParseDoc (const xmlChar *cur,
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const char *encoding,
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htmlSAXHandler *sax,
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void *userData);
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XMLPUBFUN xmlDoc *
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htmlParseDoc (const xmlChar *cur,
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const char *encoding);
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XMLPUBFUN htmlParserCtxt *
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htmlCreateFileParserCtxt(const char *filename,
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const char *encoding);
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XML_DEPRECATED
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XMLPUBFUN xmlDoc *
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htmlSAXParseFile(const char *filename,
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const char *encoding,
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htmlSAXHandler *sax,
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void *userData);
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XMLPUBFUN xmlDoc *
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htmlParseFile (const char *filename,
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const char *encoding);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlUTF8ToHtml (unsigned char *out,
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int *outlen,
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const unsigned char *in,
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int *inlen);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlEncodeEntities(unsigned char *out,
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int *outlen,
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const unsigned char *in,
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int *inlen, int quoteChar);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlIsScriptAttribute(const xmlChar *name);
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XML_DEPRECATED
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XMLPUBFUN int
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htmlHandleOmittedElem(int val);
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#ifdef LIBXML_PUSH_ENABLED
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/*
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* Interfaces for the Push mode.
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*/
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XMLPUBFUN htmlParserCtxt *
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htmlCreatePushParserCtxt(htmlSAXHandler *sax,
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void *user_data,
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const char *chunk,
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int size,
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const char *filename,
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xmlCharEncoding enc);
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XMLPUBFUN int
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htmlParseChunk (htmlParserCtxt *ctxt,
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const char *chunk,
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int size,
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int terminate);
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#endif /* LIBXML_PUSH_ENABLED */
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XMLPUBFUN void
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htmlFreeParserCtxt (htmlParserCtxt *ctxt);
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/*
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* New set of simpler/more flexible APIs
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*/
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/**
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* This is the set of HTML parser options that can be passed to
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* #htmlReadDoc, #htmlCtxtSetOptions and other functions.
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*/
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typedef enum {
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/**
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* No effect as of 2.14.0.
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*/
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HTML_PARSE_RECOVER = 1<<0,
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/**
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* Do not default to a doctype if none was found.
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*/
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HTML_PARSE_NODEFDTD = 1<<2,
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/**
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* Disable error and warning reports to the error handlers.
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* Errors are still accessible with xmlCtxtGetLastError().
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*/
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HTML_PARSE_NOERROR = 1<<5,
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/**
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* Disable warning reports.
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*/
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HTML_PARSE_NOWARNING = 1<<6,
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/**
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* No effect.
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*/
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HTML_PARSE_PEDANTIC = 1<<7,
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/**
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* Remove some text nodes containing only whitespace from the
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* result document. Which nodes are removed depends on a conservative
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* heuristic. The reindenting feature of the serialization code relies
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* on this option to be set when parsing. Use of this option is
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* DISCOURAGED.
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*/
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HTML_PARSE_NOBLANKS = 1<<8,
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/**
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* No effect.
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*/
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HTML_PARSE_NONET = 1<<11,
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/**
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* Do not add implied html, head or body elements.
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*/
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HTML_PARSE_NOIMPLIED = 1<<13,
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/**
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* Store small strings directly in the node struct to save
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* memory.
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*/
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HTML_PARSE_COMPACT = 1<<16,
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/**
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* Relax some internal limits. See XML_PARSE_HUGE in xmlParserOption.
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*
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* @since 2.14.0
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*
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* Use XML_PARSE_HUGE with older versions.
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*/
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HTML_PARSE_HUGE = 1<<19,
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/**
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* Ignore the encoding in the HTML declaration. This option is
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* mostly unneeded these days. The only effect is to enforce
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* ISO-8859-1 decoding of ASCII-like data.
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*/
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HTML_PARSE_IGNORE_ENC =1<<21,
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/**
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* Enable reporting of line numbers larger than 65535.
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*
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* @since 2.14.0
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*
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* Use XML_PARSE_BIG_LINES with older versions.
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*/
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HTML_PARSE_BIG_LINES = 1<<22,
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/**
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* Make the tokenizer emit a SAX callback for each token. This results
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* in unbalanced invocations of startElement and endElement.
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*
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* For now, this is only usable to tokenize HTML5 with custom SAX
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* callbacks. A tree builder isn't implemented yet.
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*
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* @since 2.14.0
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*/
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HTML_PARSE_HTML5 = 1<<26
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} htmlParserOption;
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XMLPUBFUN void
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htmlCtxtReset (htmlParserCtxt *ctxt);
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XMLPUBFUN int
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htmlCtxtSetOptions (htmlParserCtxt *ctxt,
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int options);
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XMLPUBFUN int
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htmlCtxtUseOptions (htmlParserCtxt *ctxt,
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int options);
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XMLPUBFUN xmlDoc *
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htmlReadDoc (const xmlChar *cur,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlReadFile (const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlReadMemory (const char *buffer,
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int size,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlReadFd (int fd,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlReadIO (xmlInputReadCallback ioread,
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xmlInputCloseCallback ioclose,
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void *ioctx,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlCtxtParseDocument (htmlParserCtxt *ctxt,
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xmlParserInput *input);
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XMLPUBFUN xmlDoc *
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htmlCtxtReadDoc (xmlParserCtxt *ctxt,
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const xmlChar *cur,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlCtxtReadFile (xmlParserCtxt *ctxt,
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const char *filename,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlCtxtReadMemory (xmlParserCtxt *ctxt,
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const char *buffer,
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int size,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlCtxtReadFd (xmlParserCtxt *ctxt,
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int fd,
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const char *URL,
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const char *encoding,
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int options);
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XMLPUBFUN xmlDoc *
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htmlCtxtReadIO (xmlParserCtxt *ctxt,
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xmlInputReadCallback ioread,
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xmlInputCloseCallback ioclose,
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void *ioctx,
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const char *URL,
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const char *encoding,
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int options);
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/**
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* deprecated content model
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*/
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typedef enum {
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HTML_NA = 0 , /* something we don't check at all */
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HTML_INVALID = 0x1 ,
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HTML_DEPRECATED = 0x2 ,
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HTML_VALID = 0x4 ,
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HTML_REQUIRED = 0xc /* VALID bit set so ( & HTML_VALID ) is TRUE */
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} htmlStatus ;
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/* Using htmlElemDesc rather than name here, to emphasise the fact
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that otherwise there's a lookup overhead
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*/
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XML_DEPRECATED
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XMLPUBFUN htmlStatus htmlAttrAllowed(const htmlElemDesc*, const xmlChar*, int) ;
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XML_DEPRECATED
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XMLPUBFUN int htmlElementAllowedHere(const htmlElemDesc*, const xmlChar*) ;
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XML_DEPRECATED
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XMLPUBFUN htmlStatus htmlElementStatusHere(const htmlElemDesc*, const htmlElemDesc*) ;
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XML_DEPRECATED
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XMLPUBFUN htmlStatus htmlNodeStatus(xmlNode *, int) ;
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#ifdef __cplusplus
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}
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#endif
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#endif /* LIBXML_HTML_ENABLED */
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#endif /* __HTML_PARSER_H__ */
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