parser.h

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/*
 * Summary: the core parser module
 * Description: Interfaces, constants and types related to the XML parser
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_PARSER_H__
#define __XML_PARSER_H__

#include <stdarg.h>

#include <libxml/xmlversion.h>
#include <libxml/tree.h>
#include <libxml/dict.h>
#include <libxml/hash.h>
#include <libxml/valid.h>
#include <libxml/entities.h>
#include <libxml/xmlerror.h>
#include <libxml/xmlstring.h>

#ifdef __cplusplus
extern "C" {
#endif

#define XML_DEFAULT_VERSION "1.0"

typedef void (* xmlParserInputDeallocate)(xmlChar *str);

struct _xmlParserInput {
    /* Input buffer */
    xmlParserInputBufferPtr buf;      /* UTF-8 encoded buffer */

    const char *filename;             /* The file analyzed, if any */
    const char *directory;            /* the directory/base of the file */
    const xmlChar *base;              /* Base of the array to parse */
    const xmlChar *cur;               /* Current char being parsed */
    const xmlChar *end;               /* end of the array to parse */
    int length;                       /* length if known */
    int line;                         /* Current line */
    int col;                          /* Current column */
    /*
     * NOTE: consumed is only tested for equality in the parser code,
     *       so even if there is an overflow this should not give troubles
     *       for parsing very large instances.
     */
    unsigned long consumed;           /* How many xmlChars already consumed */
    xmlParserInputDeallocate free;    /* function to deallocate the base */
    const xmlChar *encoding;          /* the encoding string for entity */
    const xmlChar *version;           /* the version string for entity */
    int standalone;                   /* Was that entity marked standalone */
    int id;                           /* an unique identifier for the entity */
};

typedef struct _xmlParserNodeInfo xmlParserNodeInfo;
typedef xmlParserNodeInfo *xmlParserNodeInfoPtr;

struct _xmlParserNodeInfo {
  const struct _xmlNode* node;
  /* Position & line # that text that created the node begins & ends on */
  unsigned long begin_pos;
  unsigned long begin_line;
  unsigned long end_pos;
  unsigned long end_line;
};

typedef struct _xmlParserNodeInfoSeq xmlParserNodeInfoSeq;
typedef xmlParserNodeInfoSeq *xmlParserNodeInfoSeqPtr;
struct _xmlParserNodeInfoSeq {
  unsigned long maximum;
  unsigned long length;
  xmlParserNodeInfo* buffer;
};

typedef enum {
    XML_PARSER_EOF = -1,    /* nothing is to be parsed */
    XML_PARSER_START = 0,   /* nothing has been parsed */
    XML_PARSER_MISC,        /* Misc* before int subset */
    XML_PARSER_PI,      /* Within a processing instruction */
    XML_PARSER_DTD,     /* within some DTD content */
    XML_PARSER_PROLOG,      /* Misc* after internal subset */
    XML_PARSER_COMMENT,     /* within a comment */
    XML_PARSER_START_TAG,   /* within a start tag */
    XML_PARSER_CONTENT,     /* within the content */
    XML_PARSER_CDATA_SECTION,   /* within a CDATA section */
    XML_PARSER_END_TAG,     /* within a closing tag */
    XML_PARSER_ENTITY_DECL, /* within an entity declaration */
    XML_PARSER_ENTITY_VALUE,    /* within an entity value in a decl */
    XML_PARSER_ATTRIBUTE_VALUE, /* within an attribute value */
    XML_PARSER_SYSTEM_LITERAL,  /* within a SYSTEM value */
    XML_PARSER_EPILOG,      /* the Misc* after the last end tag */
    XML_PARSER_IGNORE,      /* within an IGNORED section */
    XML_PARSER_PUBLIC_LITERAL   /* within a PUBLIC value */
} xmlParserInputState;

#define XML_DETECT_IDS      2

#define XML_COMPLETE_ATTRS  4

#define XML_SKIP_IDS        8

typedef enum {
    XML_PARSE_UNKNOWN = 0,
    XML_PARSE_DOM = 1,
    XML_PARSE_SAX = 2,
    XML_PARSE_PUSH_DOM = 3,
    XML_PARSE_PUSH_SAX = 4,
    XML_PARSE_READER = 5
} xmlParserMode;

struct _xmlParserCtxt {
    struct _xmlSAXHandler *sax;       /* The SAX handler */
    void            *userData;        /* For SAX interface only, used by DOM build */
    xmlDocPtr           myDoc;        /* the document being built */
    int            wellFormed;        /* is the document well formed */
    int       replaceEntities;        /* shall we replace entities ? */
    const xmlChar    *version;        /* the XML version string */
    const xmlChar   *encoding;        /* the declared encoding, if any */
    int            standalone;        /* standalone document */
    int                  html;        /* an HTML(1)/Docbook(2) document
                                       * 3 is HTML after <head>
                                       * 10 is HTML after <body>
                                       */

    /* Input stream stack */
    xmlParserInputPtr  input;         /* Current input stream */
    int                inputNr;       /* Number of current input streams */
    int                inputMax;      /* Max number of input streams */
    xmlParserInputPtr *inputTab;      /* stack of inputs */

    /* Node analysis stack only used for DOM building */
    xmlNodePtr         node;          /* Current parsed Node */
    int                nodeNr;        /* Depth of the parsing stack */
    int                nodeMax;       /* Max depth of the parsing stack */
    xmlNodePtr        *nodeTab;       /* array of nodes */

    int record_info;                  /* Whether node info should be kept */
    xmlParserNodeInfoSeq node_seq;    /* info about each node parsed */

    int errNo;                        /* error code */

    int     hasExternalSubset;        /* reference and external subset */
    int             hasPErefs;        /* the internal subset has PE refs */
    int              external;        /* are we parsing an external entity */

    int                 valid;        /* is the document valid */
    int              validate;        /* shall we try to validate ? */
    xmlValidCtxt        vctxt;        /* The validity context */

    xmlParserInputState instate;      /* current type of input */
    int                 token;        /* next char look-ahead */

    char           *directory;        /* the data directory */

    /* Node name stack */
    const xmlChar     *name;          /* Current parsed Node */
    int                nameNr;        /* Depth of the parsing stack */
    int                nameMax;       /* Max depth of the parsing stack */
    const xmlChar *   *nameTab;       /* array of nodes */

    long               nbChars;       /* number of xmlChar processed */
    long            checkIndex;       /* used by progressive parsing lookup */
    int             keepBlanks;       /* ugly but ... */
    int             disableSAX;       /* SAX callbacks are disabled */
    int               inSubset;       /* Parsing is in int 1/ext 2 subset */
    const xmlChar *    intSubName;    /* name of subset */
    xmlChar *          extSubURI;     /* URI of external subset */
    xmlChar *          extSubSystem;  /* SYSTEM ID of external subset */

    /* xml:space values */
    int *              space;         /* Should the parser preserve spaces */
    int                spaceNr;       /* Depth of the parsing stack */
    int                spaceMax;      /* Max depth of the parsing stack */
    int *              spaceTab;      /* array of space infos */

    int                depth;         /* to prevent entity substitution loops */
    xmlParserInputPtr  entity;        /* used to check entities boundaries */
    int                charset;       /* encoding of the in-memory content
                         actually an xmlCharEncoding */
    int                nodelen;       /* Those two fields are there to */
    int                nodemem;       /* Speed up large node parsing */
    int                pedantic;      /* signal pedantic warnings */
    void              *_private;      /* For user data, libxml won't touch it */

    int                loadsubset;    /* should the external subset be loaded */
    int                linenumbers;   /* set line number in element content */
    void              *catalogs;      /* document's own catalog */
    int                recovery;      /* run in recovery mode */
    int                progressive;   /* is this a progressive parsing */
    xmlDictPtr         dict;          /* dictionary for the parser */
    const xmlChar *   *atts;          /* array for the attributes callbacks */
    int                maxatts;       /* the size of the array */
    int                docdict;       /* use strings from dict to build tree */

    /*
     * pre-interned strings
     */
    const xmlChar *str_xml;
    const xmlChar *str_xmlns;
    const xmlChar *str_xml_ns;

    /*
     * Everything below is used only by the new SAX mode
     */
    int                sax2;          /* operating in the new SAX mode */
    int                nsNr;          /* the number of inherited namespaces */
    int                nsMax;         /* the size of the arrays */
    const xmlChar *   *nsTab;         /* the array of prefix/namespace name */
    int               *attallocs;     /* which attribute were allocated */
    void *            *pushTab;       /* array of data for push */
    xmlHashTablePtr    attsDefault;   /* defaulted attributes if any */
    xmlHashTablePtr    attsSpecial;   /* non-CDATA attributes if any */
    int                nsWellFormed;  /* is the document XML Nanespace okay */
    int                options;       /* Extra options */

    /*
     * Those fields are needed only for treaming parsing so far
     */
    int               dictNames;    /* Use dictionary names for the tree */
    int               freeElemsNr;  /* number of freed element nodes */
    xmlNodePtr        freeElems;    /* List of freed element nodes */
    int               freeAttrsNr;  /* number of freed attributes nodes */
    xmlAttrPtr        freeAttrs;    /* List of freed attributes nodes */

    /*
     * the complete error informations for the last error.
     */
    xmlError          lastError;
    xmlParserMode     parseMode;    /* the parser mode */
    unsigned long    nbentities;    /* number of entities references */
    unsigned long  sizeentities;    /* size of parsed entities */

    /* for use by HTML non-recursive parser */
    xmlParserNodeInfo *nodeInfo;      /* Current NodeInfo */
    int                nodeInfoNr;    /* Depth of the parsing stack */
    int                nodeInfoMax;   /* Max depth of the parsing stack */
    xmlParserNodeInfo *nodeInfoTab;   /* array of nodeInfos */

    int                input_id;      /* we need to label inputs */
    unsigned long      sizeentcopy;   /* volume of entity copy */
};

struct _xmlSAXLocator {
    const xmlChar *(*getPublicId)(void *ctx);
    const xmlChar *(*getSystemId)(void *ctx);
    int (*getLineNumber)(void *ctx);
    int (*getColumnNumber)(void *ctx);
};

typedef xmlParserInputPtr (*resolveEntitySAXFunc) (void *ctx,
                const xmlChar *publicId,
                const xmlChar *systemId);
typedef void (*internalSubsetSAXFunc) (void *ctx,
                const xmlChar *name,
                const xmlChar *ExternalID,
                const xmlChar *SystemID);
typedef void (*externalSubsetSAXFunc) (void *ctx,
                const xmlChar *name,
                const xmlChar *ExternalID,
                const xmlChar *SystemID);
typedef xmlEntityPtr (*getEntitySAXFunc) (void *ctx,
                const xmlChar *name);
typedef xmlEntityPtr (*getParameterEntitySAXFunc) (void *ctx,
                const xmlChar *name);
typedef void (*entityDeclSAXFunc) (void *ctx,
                const xmlChar *name,
                int type,
                const xmlChar *publicId,
                const xmlChar *systemId,
                xmlChar *content);
typedef void (*notationDeclSAXFunc)(void *ctx,
                const xmlChar *name,
                const xmlChar *publicId,
                const xmlChar *systemId);
typedef void (*attributeDeclSAXFunc)(void *ctx,
                const xmlChar *elem,
                const xmlChar *fullname,
                int type,
                int def,
                const xmlChar *defaultValue,
                xmlEnumerationPtr tree);
typedef void (*elementDeclSAXFunc)(void *ctx,
                const xmlChar *name,
                int type,
                xmlElementContentPtr content);
typedef void (*unparsedEntityDeclSAXFunc)(void *ctx,
                const xmlChar *name,
                const xmlChar *publicId,
                const xmlChar *systemId,
                const xmlChar *notationName);
typedef void (*setDocumentLocatorSAXFunc) (void *ctx,
                xmlSAXLocatorPtr loc);
typedef void (*startDocumentSAXFunc) (void *ctx);
typedef void (*endDocumentSAXFunc) (void *ctx);
typedef void (*startElementSAXFunc) (void *ctx,
                const xmlChar *name,
                const xmlChar **atts);
typedef void (*endElementSAXFunc) (void *ctx,
                const xmlChar *name);
typedef void (*attributeSAXFunc) (void *ctx,
                const xmlChar *name,
                const xmlChar *value);
typedef void (*referenceSAXFunc) (void *ctx,
                const xmlChar *name);
typedef void (*charactersSAXFunc) (void *ctx,
                const xmlChar *ch,
                int len);
typedef void (*ignorableWhitespaceSAXFunc) (void *ctx,
                const xmlChar *ch,
                int len);
typedef void (*processingInstructionSAXFunc) (void *ctx,
                const xmlChar *target,
                const xmlChar *data);
typedef void (*commentSAXFunc) (void *ctx,
                const xmlChar *value);
typedef void (*cdataBlockSAXFunc) (
                            void *ctx,
                const xmlChar *value,
                int len);
typedef void (XMLCDECL *warningSAXFunc) (void *ctx,
                const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
typedef void (XMLCDECL *errorSAXFunc) (void *ctx,
                const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
typedef void (XMLCDECL *fatalErrorSAXFunc) (void *ctx,
                const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
typedef int (*isStandaloneSAXFunc) (void *ctx);
typedef int (*hasInternalSubsetSAXFunc) (void *ctx);

typedef int (*hasExternalSubsetSAXFunc) (void *ctx);

/************************************************************************
 *                                  *
 *          The SAX version 2 API extensions        *
 *                                  *
 ************************************************************************/
#define XML_SAX2_MAGIC 0xDEEDBEAF

typedef void (*startElementNsSAX2Func) (void *ctx,
                    const xmlChar *localname,
                    const xmlChar *prefix,
                    const xmlChar *URI,
                    int nb_namespaces,
                    const xmlChar **namespaces,
                    int nb_attributes,
                    int nb_defaulted,
                    const xmlChar **attributes);

typedef void (*endElementNsSAX2Func)   (void *ctx,
                    const xmlChar *localname,
                    const xmlChar *prefix,
                    const xmlChar *URI);


struct _xmlSAXHandler {
    internalSubsetSAXFunc internalSubset;
    isStandaloneSAXFunc isStandalone;
    hasInternalSubsetSAXFunc hasInternalSubset;
    hasExternalSubsetSAXFunc hasExternalSubset;
    resolveEntitySAXFunc resolveEntity;
    getEntitySAXFunc getEntity;
    entityDeclSAXFunc entityDecl;
    notationDeclSAXFunc notationDecl;
    attributeDeclSAXFunc attributeDecl;
    elementDeclSAXFunc elementDecl;
    unparsedEntityDeclSAXFunc unparsedEntityDecl;
    setDocumentLocatorSAXFunc setDocumentLocator;
    startDocumentSAXFunc startDocument;
    endDocumentSAXFunc endDocument;
    startElementSAXFunc startElement;
    endElementSAXFunc endElement;
    referenceSAXFunc reference;
    charactersSAXFunc characters;
    ignorableWhitespaceSAXFunc ignorableWhitespace;
    processingInstructionSAXFunc processingInstruction;
    commentSAXFunc comment;
    warningSAXFunc warning;
    errorSAXFunc error;
    fatalErrorSAXFunc fatalError; /* unused error() get all the errors */
    getParameterEntitySAXFunc getParameterEntity;
    cdataBlockSAXFunc cdataBlock;
    externalSubsetSAXFunc externalSubset;
    unsigned int initialized;
    /* The following fields are extensions available only on version 2 */
    void *_private;
    startElementNsSAX2Func startElementNs;
    endElementNsSAX2Func endElementNs;
    xmlStructuredErrorFunc serror;
};

/*
 * SAX Version 1
 */
typedef struct _xmlSAXHandlerV1 xmlSAXHandlerV1;
typedef xmlSAXHandlerV1 *xmlSAXHandlerV1Ptr;
struct _xmlSAXHandlerV1 {
    internalSubsetSAXFunc internalSubset;
    isStandaloneSAXFunc isStandalone;
    hasInternalSubsetSAXFunc hasInternalSubset;
    hasExternalSubsetSAXFunc hasExternalSubset;
    resolveEntitySAXFunc resolveEntity;
    getEntitySAXFunc getEntity;
    entityDeclSAXFunc entityDecl;
    notationDeclSAXFunc notationDecl;
    attributeDeclSAXFunc attributeDecl;
    elementDeclSAXFunc elementDecl;
    unparsedEntityDeclSAXFunc unparsedEntityDecl;
    setDocumentLocatorSAXFunc setDocumentLocator;
    startDocumentSAXFunc startDocument;
    endDocumentSAXFunc endDocument;
    startElementSAXFunc startElement;
    endElementSAXFunc endElement;
    referenceSAXFunc reference;
    charactersSAXFunc characters;
    ignorableWhitespaceSAXFunc ignorableWhitespace;
    processingInstructionSAXFunc processingInstruction;
    commentSAXFunc comment;
    warningSAXFunc warning;
    errorSAXFunc error;
    fatalErrorSAXFunc fatalError; /* unused error() get all the errors */
    getParameterEntitySAXFunc getParameterEntity;
    cdataBlockSAXFunc cdataBlock;
    externalSubsetSAXFunc externalSubset;
    unsigned int initialized;
};


typedef xmlParserInputPtr (*xmlExternalEntityLoader) (const char *URL,
                     const char *ID,
                     xmlParserCtxtPtr context);

#ifdef __cplusplus
}
#endif

#include <libxml/encoding.h>
#include <libxml/xmlIO.h>
#include <libxml/globals.h>

#ifdef __cplusplus
extern "C" {
#endif


/*
 * Init/Cleanup
 */
XMLPUBFUN void XMLCALL
        xmlInitParser       (void);
XMLPUBFUN void XMLCALL
        xmlCleanupParser    (void);

/*
 * Input functions
 */
XMLPUBFUN int XMLCALL
        xmlParserInputRead  (xmlParserInputPtr in,
                     int len);
XMLPUBFUN int XMLCALL
        xmlParserInputGrow  (xmlParserInputPtr in,
                     int len);

/*
 * Basic parsing Interfaces
 */
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN xmlDocPtr XMLCALL
        xmlParseDoc     (const xmlChar *cur);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlParseFile        (const char *filename);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlParseMemory      (const char *buffer,
                     int size);
#endif /* LIBXML_SAX1_ENABLED */
XMLPUBFUN int XMLCALL
        xmlSubstituteEntitiesDefault(int val);
XMLPUBFUN int XMLCALL
        xmlKeepBlanksDefault    (int val);
XMLPUBFUN void XMLCALL
        xmlStopParser       (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
        xmlPedanticParserDefault(int val);
XMLPUBFUN int XMLCALL
        xmlLineNumbersDefault   (int val);

#ifdef LIBXML_SAX1_ENABLED
/*
 * Recovery mode
 */
XMLPUBFUN xmlDocPtr XMLCALL
        xmlRecoverDoc       (const xmlChar *cur);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlRecoverMemory    (const char *buffer,
                     int size);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlRecoverFile      (const char *filename);
#endif /* LIBXML_SAX1_ENABLED */

/*
 * Less common routines and SAX interfaces
 */
XMLPUBFUN int XMLCALL
        xmlParseDocument    (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
        xmlParseExtParsedEnt    (xmlParserCtxtPtr ctxt);
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN int XMLCALL
        xmlSAXUserParseFile (xmlSAXHandlerPtr sax,
                     void *user_data,
                     const char *filename);
XMLPUBFUN int XMLCALL
        xmlSAXUserParseMemory   (xmlSAXHandlerPtr sax,
                     void *user_data,
                     const char *buffer,
                     int size);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseDoc      (xmlSAXHandlerPtr sax,
                     const xmlChar *cur,
                     int recovery);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseMemory   (xmlSAXHandlerPtr sax,
                     const char *buffer,
                     int size,
                     int recovery);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseMemoryWithData (xmlSAXHandlerPtr sax,
                     const char *buffer,
                     int size,
                     int recovery,
                     void *data);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseFile     (xmlSAXHandlerPtr sax,
                     const char *filename,
                     int recovery);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseFileWithData (xmlSAXHandlerPtr sax,
                     const char *filename,
                     int recovery,
                     void *data);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlSAXParseEntity   (xmlSAXHandlerPtr sax,
                     const char *filename);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlParseEntity      (const char *filename);
#endif /* LIBXML_SAX1_ENABLED */

#ifdef LIBXML_VALID_ENABLED
XMLPUBFUN xmlDtdPtr XMLCALL
        xmlSAXParseDTD      (xmlSAXHandlerPtr sax,
                     const xmlChar *ExternalID,
                     const xmlChar *SystemID);
XMLPUBFUN xmlDtdPtr XMLCALL
        xmlParseDTD     (const xmlChar *ExternalID,
                     const xmlChar *SystemID);
XMLPUBFUN xmlDtdPtr XMLCALL
        xmlIOParseDTD       (xmlSAXHandlerPtr sax,
                     xmlParserInputBufferPtr input,
                     xmlCharEncoding enc);
#endif /* LIBXML_VALID_ENABLE */
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN int XMLCALL
        xmlParseBalancedChunkMemory(xmlDocPtr doc,
                     xmlSAXHandlerPtr sax,
                     void *user_data,
                     int depth,
                     const xmlChar *string,
                     xmlNodePtr *lst);
#endif /* LIBXML_SAX1_ENABLED */
XMLPUBFUN xmlParserErrors XMLCALL
        xmlParseInNodeContext   (xmlNodePtr node,
                     const char *data,
                     int datalen,
                     int options,
                     xmlNodePtr *lst);
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN int XMLCALL
        xmlParseBalancedChunkMemoryRecover(xmlDocPtr doc,
                     xmlSAXHandlerPtr sax,
                     void *user_data,
                     int depth,
                     const xmlChar *string,
                     xmlNodePtr *lst,
                     int recover);
XMLPUBFUN int XMLCALL
        xmlParseExternalEntity  (xmlDocPtr doc,
                     xmlSAXHandlerPtr sax,
                     void *user_data,
                     int depth,
                     const xmlChar *URL,
                     const xmlChar *ID,
                     xmlNodePtr *lst);
#endif /* LIBXML_SAX1_ENABLED */
XMLPUBFUN int XMLCALL
        xmlParseCtxtExternalEntity(xmlParserCtxtPtr ctx,
                     const xmlChar *URL,
                     const xmlChar *ID,
                     xmlNodePtr *lst);

/*
 * Parser contexts handling.
 */
XMLPUBFUN xmlParserCtxtPtr XMLCALL
        xmlNewParserCtxt    (void);
XMLPUBFUN int XMLCALL
        xmlInitParserCtxt   (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
        xmlClearParserCtxt  (xmlParserCtxtPtr ctxt);
XMLPUBFUN void XMLCALL
        xmlFreeParserCtxt   (xmlParserCtxtPtr ctxt);
#ifdef LIBXML_SAX1_ENABLED
XMLPUBFUN void XMLCALL
        xmlSetupParserForBuffer (xmlParserCtxtPtr ctxt,
                     const xmlChar* buffer,
                     const char *filename);
#endif /* LIBXML_SAX1_ENABLED */
XMLPUBFUN xmlParserCtxtPtr XMLCALL
        xmlCreateDocParserCtxt  (const xmlChar *cur);

#ifdef LIBXML_LEGACY_ENABLED
/*
 * Reading/setting optional parsing features.
 */
XMLPUBFUN int XMLCALL
        xmlGetFeaturesList  (int *len,
                     const char **result);
XMLPUBFUN int XMLCALL
        xmlGetFeature       (xmlParserCtxtPtr ctxt,
                     const char *name,
                     void *result);
XMLPUBFUN int XMLCALL
        xmlSetFeature       (xmlParserCtxtPtr ctxt,
                     const char *name,
                     void *value);
#endif /* LIBXML_LEGACY_ENABLED */

#ifdef LIBXML_PUSH_ENABLED
/*
 * Interfaces for the Push mode.
 */
XMLPUBFUN xmlParserCtxtPtr XMLCALL
        xmlCreatePushParserCtxt(xmlSAXHandlerPtr sax,
                     void *user_data,
                     const char *chunk,
                     int size,
                     const char *filename);
XMLPUBFUN int XMLCALL
        xmlParseChunk       (xmlParserCtxtPtr ctxt,
                     const char *chunk,
                     int size,
                     int terminate);
#endif /* LIBXML_PUSH_ENABLED */

/*
 * Special I/O mode.
 */

XMLPUBFUN xmlParserCtxtPtr XMLCALL
        xmlCreateIOParserCtxt   (xmlSAXHandlerPtr sax,
                     void *user_data,
                     xmlInputReadCallback   ioread,
                     xmlInputCloseCallback  ioclose,
                     void *ioctx,
                     xmlCharEncoding enc);

XMLPUBFUN xmlParserInputPtr XMLCALL
        xmlNewIOInputStream (xmlParserCtxtPtr ctxt,
                     xmlParserInputBufferPtr input,
                     xmlCharEncoding enc);

/*
 * Node infos.
 */
XMLPUBFUN const xmlParserNodeInfo* XMLCALL
        xmlParserFindNodeInfo   (const xmlParserCtxtPtr ctxt,
                         const xmlNodePtr node);
XMLPUBFUN void XMLCALL
        xmlInitNodeInfoSeq  (xmlParserNodeInfoSeqPtr seq);
XMLPUBFUN void XMLCALL
        xmlClearNodeInfoSeq (xmlParserNodeInfoSeqPtr seq);
XMLPUBFUN unsigned long XMLCALL
        xmlParserFindNodeInfoIndex(const xmlParserNodeInfoSeqPtr seq,
                                         const xmlNodePtr node);
XMLPUBFUN void XMLCALL
        xmlParserAddNodeInfo    (xmlParserCtxtPtr ctxt,
                     const xmlParserNodeInfoPtr info);

/*
 * External entities handling actually implemented in xmlIO.
 */

XMLPUBFUN void XMLCALL
        xmlSetExternalEntityLoader(xmlExternalEntityLoader f);
XMLPUBFUN xmlExternalEntityLoader XMLCALL
        xmlGetExternalEntityLoader(void);
XMLPUBFUN xmlParserInputPtr XMLCALL
        xmlLoadExternalEntity   (const char *URL,
                     const char *ID,
                     xmlParserCtxtPtr ctxt);

/*
 * Index lookup, actually implemented in the encoding module
 */
XMLPUBFUN long XMLCALL
        xmlByteConsumed     (xmlParserCtxtPtr ctxt);

/*
 * New set of simpler/more flexible APIs
 */
typedef enum {
    XML_PARSE_RECOVER   = 1<<0, /* recover on errors */
    XML_PARSE_NOENT = 1<<1, /* substitute entities */
    XML_PARSE_DTDLOAD   = 1<<2, /* load the external subset */
    XML_PARSE_DTDATTR   = 1<<3, /* default DTD attributes */
    XML_PARSE_DTDVALID  = 1<<4, /* validate with the DTD */
    XML_PARSE_NOERROR   = 1<<5, /* suppress error reports */
    XML_PARSE_NOWARNING = 1<<6, /* suppress warning reports */
    XML_PARSE_PEDANTIC  = 1<<7, /* pedantic error reporting */
    XML_PARSE_NOBLANKS  = 1<<8, /* remove blank nodes */
    XML_PARSE_SAX1  = 1<<9, /* use the SAX1 interface internally */
    XML_PARSE_XINCLUDE  = 1<<10,/* Implement XInclude substitition  */
    XML_PARSE_NONET = 1<<11,/* Forbid network access */
    XML_PARSE_NODICT    = 1<<12,/* Do not reuse the context dictionary */
    XML_PARSE_NSCLEAN   = 1<<13,/* remove redundant namespaces declarations */
    XML_PARSE_NOCDATA   = 1<<14,/* merge CDATA as text nodes */
    XML_PARSE_NOXINCNODE= 1<<15,/* do not generate XINCLUDE START/END nodes */
    XML_PARSE_COMPACT   = 1<<16,/* compact small text nodes; no modification of
                                   the tree allowed afterwards (will possibly
                   crash if you try to modify the tree) */
    XML_PARSE_OLD10 = 1<<17,/* parse using XML-1.0 before update 5 */
    XML_PARSE_NOBASEFIX = 1<<18,/* do not fixup XINCLUDE xml:base uris */
    XML_PARSE_HUGE      = 1<<19,/* relax any hardcoded limit from the parser */
    XML_PARSE_OLDSAX    = 1<<20,/* parse using SAX2 interface before 2.7.0 */
    XML_PARSE_IGNORE_ENC= 1<<21,/* ignore internal document encoding hint */
    XML_PARSE_BIG_LINES = 1<<22 /* Store big lines numbers in text PSVI field */
} xmlParserOption;

XMLPUBFUN void XMLCALL
        xmlCtxtReset        (xmlParserCtxtPtr ctxt);
XMLPUBFUN int XMLCALL
        xmlCtxtResetPush    (xmlParserCtxtPtr ctxt,
                     const char *chunk,
                     int size,
                     const char *filename,
                     const char *encoding);
XMLPUBFUN int XMLCALL
        xmlCtxtUseOptions   (xmlParserCtxtPtr ctxt,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlReadDoc      (const xmlChar *cur,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlReadFile     (const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlReadMemory       (const char *buffer,
                     int size,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlReadFd       (int fd,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlReadIO       (xmlInputReadCallback ioread,
                     xmlInputCloseCallback ioclose,
                     void *ioctx,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlCtxtReadDoc      (xmlParserCtxtPtr ctxt,
                     const xmlChar *cur,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlCtxtReadFile     (xmlParserCtxtPtr ctxt,
                     const char *filename,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlCtxtReadMemory       (xmlParserCtxtPtr ctxt,
                     const char *buffer,
                     int size,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlCtxtReadFd       (xmlParserCtxtPtr ctxt,
                     int fd,
                     const char *URL,
                     const char *encoding,
                     int options);
XMLPUBFUN xmlDocPtr XMLCALL
        xmlCtxtReadIO       (xmlParserCtxtPtr ctxt,
                     xmlInputReadCallback ioread,
                     xmlInputCloseCallback ioclose,
                     void *ioctx,
                     const char *URL,
                     const char *encoding,
                     int options);

/*
 * Library wide options
 */
typedef enum {
    XML_WITH_THREAD = 1,
    XML_WITH_TREE = 2,
    XML_WITH_OUTPUT = 3,
    XML_WITH_PUSH = 4,
    XML_WITH_READER = 5,
    XML_WITH_PATTERN = 6,
    XML_WITH_WRITER = 7,
    XML_WITH_SAX1 = 8,
    XML_WITH_FTP = 9,
    XML_WITH_HTTP = 10,
    XML_WITH_VALID = 11,
    XML_WITH_HTML = 12,
    XML_WITH_LEGACY = 13,
    XML_WITH_C14N = 14,
    XML_WITH_CATALOG = 15,
    XML_WITH_XPATH = 16,
    XML_WITH_XPTR = 17,
    XML_WITH_XINCLUDE = 18,
    XML_WITH_ICONV = 19,
    XML_WITH_ISO8859X = 20,
    XML_WITH_UNICODE = 21,
    XML_WITH_REGEXP = 22,
    XML_WITH_AUTOMATA = 23,
    XML_WITH_EXPR = 24,
    XML_WITH_SCHEMAS = 25,
    XML_WITH_SCHEMATRON = 26,
    XML_WITH_MODULES = 27,
    XML_WITH_DEBUG = 28,
    XML_WITH_DEBUG_MEM = 29,
    XML_WITH_DEBUG_RUN = 30,
    XML_WITH_ZLIB = 31,
    XML_WITH_ICU = 32,
    XML_WITH_LZMA = 33,
    XML_WITH_NONE = 99999 /* just to be sure of allocation size */
} xmlFeature;

XMLPUBFUN int XMLCALL
        xmlHasFeature       (xmlFeature feature);

#ifdef __cplusplus
}
#endif
#endif /* __XML_PARSER_H__ */