doubango/thirdparties/common/include/libxml/parser.h
c732d49e
 /*
  * 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
 
 /**
  * XML_DEFAULT_VERSION:
  *
  * The default version of XML used: 1.0
  */
 #define XML_DEFAULT_VERSION	"1.0"
 
 /**
  * xmlParserInput:
  *
  * An xmlParserInput is an input flow for the XML processor.
  * Each entity parsed is associated an xmlParserInput (except the
  * few predefined ones). This is the case both for internal entities
  * - in which case the flow is already completely in memory - or
  * external entities - in which case we use the buf structure for
  * progressive reading and I18N conversions to the internal UTF-8 format.
  */
 
 /**
  * xmlParserInputDeallocate:
  * @str:  the string to deallocate
  *
  * Callback for freeing some parser input allocations.
  */
 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 */
 };
 
 /**
  * xmlParserNodeInfo:
  *
  * The parser can be asked to collect Node informations, i.e. at what
  * place in the file they were detected.
  * NOTE: This is off by default and not very well tested.
  */
 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;
 };
 
 /**
  * xmlParserInputState:
  *
  * The parser is now working also as a state based parser.
  * The recursive one use the state info for entities processing.
  */
 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;
 
 /**
  * XML_DETECT_IDS:
  *
  * Bit in the loadsubset context field to tell to do ID/REFs lookups.
  * Use it to initialize xmlLoadExtDtdDefaultValue.
  */
 #define XML_DETECT_IDS		2
 
 /**
  * XML_COMPLETE_ATTRS:
  *
  * Bit in the loadsubset context field to tell to do complete the
  * elements attributes lists with the ones defaulted from the DTDs.
  * Use it to initialize xmlLoadExtDtdDefaultValue.
  */
 #define XML_COMPLETE_ATTRS	4
 
 /**
  * XML_SKIP_IDS:
  *
  * Bit in the loadsubset context field to tell to not do ID/REFs registration.
  * Used to initialize xmlLoadExtDtdDefaultValue in some special cases.
  */
 #define XML_SKIP_IDS		8
 
 /**
  * xmlParserMode:
  *
  * A parser can operate in various modes
  */
 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;
 
 /**
  * xmlParserCtxt:
  *
  * The parser context.
  * NOTE This doesn't completely define the parser state, the (current ?)
  *      design of the parser uses recursive function calls since this allow
  *      and easy mapping from the production rules of the specification
  *      to the actual code. The drawback is that the actual function call
  *      also reflect the parser state. However most of the parsing routines
  *      takes as the only argument the parser context pointer, so migrating
  *      to a state based parser for progressive parsing shouldn't be too hard.
  */
 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;          /* dictionnary 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 */
 };
 
 /**
  * xmlSAXLocator:
  *
  * A SAX Locator.
  */
 struct _xmlSAXLocator {
     const xmlChar *(*getPublicId)(void *ctx);
     const xmlChar *(*getSystemId)(void *ctx);
     int (*getLineNumber)(void *ctx);
     int (*getColumnNumber)(void *ctx);
 };
 
 /**
  * xmlSAXHandler:
  *
  * A SAX handler is bunch of callbacks called by the parser when processing
  * of the input generate data or structure informations.
  */
 
 /**
  * resolveEntitySAXFunc:
  * @ctx:  the user data (XML parser context)
  * @publicId: The public ID of the entity
  * @systemId: The system ID of the entity
  *
  * Callback:
  * The entity loader, to control the loading of external entities,
  * the application can either:
  *    - override this resolveEntity() callback in the SAX block
  *    - or better use the xmlSetExternalEntityLoader() function to
  *      set up it's own entity resolution routine
  *
  * Returns the xmlParserInputPtr if inlined or NULL for DOM behaviour.
  */
 typedef xmlParserInputPtr (*resolveEntitySAXFunc) (void *ctx,
 				const xmlChar *publicId,
 				const xmlChar *systemId);
 /**
  * internalSubsetSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  the root element name
  * @ExternalID:  the external ID
  * @SystemID:  the SYSTEM ID (e.g. filename or URL)
  *
  * Callback on internal subset declaration.
  */
 typedef void (*internalSubsetSAXFunc) (void *ctx,
 				const xmlChar *name,
 				const xmlChar *ExternalID,
 				const xmlChar *SystemID);
 /**
  * externalSubsetSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  the root element name
  * @ExternalID:  the external ID
  * @SystemID:  the SYSTEM ID (e.g. filename or URL)
  *
  * Callback on external subset declaration.
  */
 typedef void (*externalSubsetSAXFunc) (void *ctx,
 				const xmlChar *name,
 				const xmlChar *ExternalID,
 				const xmlChar *SystemID);
 /**
  * getEntitySAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name: The entity name
  *
  * Get an entity by name.
  *
  * Returns the xmlEntityPtr if found.
  */
 typedef xmlEntityPtr (*getEntitySAXFunc) (void *ctx,
 				const xmlChar *name);
 /**
  * getParameterEntitySAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name: The entity name
  *
  * Get a parameter entity by name.
  *
  * Returns the xmlEntityPtr if found.
  */
 typedef xmlEntityPtr (*getParameterEntitySAXFunc) (void *ctx,
 				const xmlChar *name);
 /**
  * entityDeclSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  the entity name
  * @type:  the entity type
  * @publicId: The public ID of the entity
  * @systemId: The system ID of the entity
  * @content: the entity value (without processing).
  *
  * An entity definition has been parsed.
  */
 typedef void (*entityDeclSAXFunc) (void *ctx,
 				const xmlChar *name,
 				int type,
 				const xmlChar *publicId,
 				const xmlChar *systemId,
 				xmlChar *content);
 /**
  * notationDeclSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name: The name of the notation
  * @publicId: The public ID of the entity
  * @systemId: The system ID of the entity
  *
  * What to do when a notation declaration has been parsed.
  */
 typedef void (*notationDeclSAXFunc)(void *ctx,
 				const xmlChar *name,
 				const xmlChar *publicId,
 				const xmlChar *systemId);
 /**
  * attributeDeclSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @elem:  the name of the element
  * @fullname:  the attribute name
  * @type:  the attribute type
  * @def:  the type of default value
  * @defaultValue: the attribute default value
  * @tree:  the tree of enumerated value set
  *
  * An attribute definition has been parsed.
  */
 typedef void (*attributeDeclSAXFunc)(void *ctx,
 				const xmlChar *elem,
 				const xmlChar *fullname,
 				int type,
 				int def,
 				const xmlChar *defaultValue,
 				xmlEnumerationPtr tree);
 /**
  * elementDeclSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  the element name
  * @type:  the element type
  * @content: the element value tree
  *
  * An element definition has been parsed.
  */
 typedef void (*elementDeclSAXFunc)(void *ctx,
 				const xmlChar *name,
 				int type,
 				xmlElementContentPtr content);
 /**
  * unparsedEntityDeclSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name: The name of the entity
  * @publicId: The public ID of the entity
  * @systemId: The system ID of the entity
  * @notationName: the name of the notation
  *
  * What to do when an unparsed entity declaration is parsed.
  */
 typedef void (*unparsedEntityDeclSAXFunc)(void *ctx,
 				const xmlChar *name,
 				const xmlChar *publicId,
 				const xmlChar *systemId,
 				const xmlChar *notationName);
 /**
  * setDocumentLocatorSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @loc: A SAX Locator
  *
  * Receive the document locator at startup, actually xmlDefaultSAXLocator.
  * Everything is available on the context, so this is useless in our case.
  */
 typedef void (*setDocumentLocatorSAXFunc) (void *ctx,
 				xmlSAXLocatorPtr loc);
 /**
  * startDocumentSAXFunc:
  * @ctx:  the user data (XML parser context)
  *
  * Called when the document start being processed.
  */
 typedef void (*startDocumentSAXFunc) (void *ctx);
 /**
  * endDocumentSAXFunc:
  * @ctx:  the user data (XML parser context)
  *
  * Called when the document end has been detected.
  */
 typedef void (*endDocumentSAXFunc) (void *ctx);
 /**
  * startElementSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  The element name, including namespace prefix
  * @atts:  An array of name/value attributes pairs, NULL terminated
  *
  * Called when an opening tag has been processed.
  */
 typedef void (*startElementSAXFunc) (void *ctx,
 				const xmlChar *name,
 				const xmlChar **atts);
 /**
  * endElementSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  The element name
  *
  * Called when the end of an element has been detected.
  */
 typedef void (*endElementSAXFunc) (void *ctx,
 				const xmlChar *name);
 /**
  * attributeSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  The attribute name, including namespace prefix
  * @value:  The attribute value
  *
  * Handle an attribute that has been read by the parser.
  * The default handling is to convert the attribute into an
  * DOM subtree and past it in a new xmlAttr element added to
  * the element.
  */
 typedef void (*attributeSAXFunc) (void *ctx,
 				const xmlChar *name,
 				const xmlChar *value);
 /**
  * referenceSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @name:  The entity name
  *
  * Called when an entity reference is detected.
  */
 typedef void (*referenceSAXFunc) (void *ctx,
 				const xmlChar *name);
 /**
  * charactersSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @ch:  a xmlChar string
  * @len: the number of xmlChar
  *
  * Receiving some chars from the parser.
  */
 typedef void (*charactersSAXFunc) (void *ctx,
 				const xmlChar *ch,
 				int len);
 /**
  * ignorableWhitespaceSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @ch:  a xmlChar string
  * @len: the number of xmlChar
  *
  * Receiving some ignorable whitespaces from the parser.
  * UNUSED: by default the DOM building will use characters.
  */
 typedef void (*ignorableWhitespaceSAXFunc) (void *ctx,
 				const xmlChar *ch,
 				int len);
 /**
  * processingInstructionSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @target:  the target name
  * @data: the PI data's
  *
  * A processing instruction has been parsed.
  */
 typedef void (*processingInstructionSAXFunc) (void *ctx,
 				const xmlChar *target,
 				const xmlChar *data);
 /**
  * commentSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @value:  the comment content
  *
  * A comment has been parsed.
  */
 typedef void (*commentSAXFunc) (void *ctx,
 				const xmlChar *value);
 /**
  * cdataBlockSAXFunc:
  * @ctx:  the user data (XML parser context)
  * @value:  The pcdata content
  * @len:  the block length
  *
  * Called when a pcdata block has been parsed.
  */
 typedef void (*cdataBlockSAXFunc) (
 	                        void *ctx,
 				const xmlChar *value,
 				int len);
 /**
  * warningSAXFunc:
  * @ctx:  an XML parser context
  * @msg:  the message to display/transmit
  * @...:  extra parameters for the message display
  *
  * Display and format a warning messages, callback.
  */
 typedef void (XMLCDECL *warningSAXFunc) (void *ctx,
 				const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
 /**
  * errorSAXFunc:
  * @ctx:  an XML parser context
  * @msg:  the message to display/transmit
  * @...:  extra parameters for the message display
  *
  * Display and format an error messages, callback.
  */
 typedef void (XMLCDECL *errorSAXFunc) (void *ctx,
 				const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
 /**
  * fatalErrorSAXFunc:
  * @ctx:  an XML parser context
  * @msg:  the message to display/transmit
  * @...:  extra parameters for the message display
  *
  * Display and format fatal error messages, callback.
  * Note: so far fatalError() SAX callbacks are not used, error()
  *       get all the callbacks for errors.
  */
 typedef void (XMLCDECL *fatalErrorSAXFunc) (void *ctx,
 				const char *msg, ...) LIBXML_ATTR_FORMAT(2,3);
 /**
  * isStandaloneSAXFunc:
  * @ctx:  the user data (XML parser context)
  *
  * Is this document tagged standalone?
  *
  * Returns 1 if true
  */
 typedef int (*isStandaloneSAXFunc) (void *ctx);
 /**
  * hasInternalSubsetSAXFunc:
  * @ctx:  the user data (XML parser context)
  *
  * Does this document has an internal subset.
  *
  * Returns 1 if true
  */
 typedef int (*hasInternalSubsetSAXFunc) (void *ctx);
 
 /**
  * hasExternalSubsetSAXFunc:
  * @ctx:  the user data (XML parser context)
  *
  * Does this document has an external subset?
  *
  * Returns 1 if true
  */
 typedef int (*hasExternalSubsetSAXFunc) (void *ctx);
 
 /************************************************************************
  *									*
  *			The SAX version 2 API extensions		*
  *									*
  ************************************************************************/
 /**
  * XML_SAX2_MAGIC:
  *
  * Special constant found in SAX2 blocks initialized fields
  */
 #define XML_SAX2_MAGIC 0xDEEDBEAF
 
 /**
  * startElementNsSAX2Func:
  * @ctx:  the user data (XML parser context)
  * @localname:  the local name of the element
  * @prefix:  the element namespace prefix if available
  * @URI:  the element namespace name if available
  * @nb_namespaces:  number of namespace definitions on that node
  * @namespaces:  pointer to the array of prefix/URI pairs namespace definitions
  * @nb_attributes:  the number of attributes on that node
  * @nb_defaulted:  the number of defaulted attributes. The defaulted
  *                  ones are at the end of the array
  * @attributes:  pointer to the array of (localname/prefix/URI/value/end)
  *               attribute values.
  *
  * SAX2 callback when an element start has been detected by the parser.
  * It provides the namespace informations for the element, as well as
  * the new namespace declarations on the element.
  */
 
 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);
 
 /**
  * endElementNsSAX2Func:
  * @ctx:  the user data (XML parser context)
  * @localname:  the local name of the element
  * @prefix:  the element namespace prefix if available
  * @URI:  the element namespace name if available
  *
  * SAX2 callback when an element end has been detected by the parser.
  * It provides the namespace informations for the element.
  */
 
 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;
 };
 
 
 /**
  * xmlExternalEntityLoader:
  * @URL: The System ID of the resource requested
  * @ID: The Public ID of the resource requested
  * @context: the XML parser context
  *
  * External entity loaders types.
  *
  * Returns the entity input parser.
  */
 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
  */
 /**
  * xmlParserOption:
  *
  * This is the set of XML parser options that can be passed down
  * to the xmlReadDoc() and similar calls.
  */
 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 dictionnary */
     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
  */
 /**
  * xmlFeature:
  *
  * Used to examine the existance of features that can be enabled
  * or disabled at compile-time.
  * They used to be called XML_FEATURE_xxx but this clashed with Expat
  */
 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__ */