## parser

parser - the core parser module

Interfaces, constants and types related to the XML parser

Author(s): Daniel Veillard

## Synopsis

    #define XML_DEFAULT_VERSION;
    #define XML_SAX2_MAGIC;
    typedef struct _xmlAttrHashBucket xmlAttrHashBucket;
    typedef enum xmlFeature;
    typedef enum xmlParserInputState;
    typedef enum xmlParserMode;
    typedef struct _xmlParserNodeInfo xmlParserNodeInfo;
    typedef xmlParserNodeInfo * xmlParserNodeInfoPtr;
    typedef struct _xmlParserNodeInfoSeq xmlParserNodeInfoSeq;
    typedef xmlParserNodeInfoSeq * xmlParserNodeInfoSeqPtr;
    typedef struct _xmlParserNsData xmlParserNsData;
    typedef enum xmlParserOption;
    typedef struct _xmlSAXHandlerV1 xmlSAXHandlerV1;
    typedef xmlSAXHandlerV1 * xmlSAXHandlerV1Ptr;
    typedef struct _xmlStartTag xmlStartTag;
    typedef void attributeDeclSAXFunc		(void * ctx,
    					 const xmlChar * elem,
    					 const xmlChar * fullname,
    					 int type,
    					 int def,
    					 const xmlChar * defaultValue,
    					 xmlEnumerationPtr tree);
    typedef void attributeSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * value);
    typedef void cdataBlockSAXFunc		(void * ctx,
    					 const xmlChar * value,
    					 int len);
    typedef void charactersSAXFunc		(void * ctx,
    					 const xmlChar * ch,
    					 int len);
    typedef void commentSAXFunc			(void * ctx,
    					 const xmlChar * value);
    typedef void elementDeclSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 int type,
    					 xmlElementContentPtr content);
    typedef void endDocumentSAXFunc		(void * ctx);
    typedef void endElementNsSAX2Func		(void * ctx,
    					 const xmlChar * localname,
    					 const xmlChar * prefix,
    					 const xmlChar * URI);
    typedef void endElementSAXFunc		(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 errorSAXFunc			(void * ctx,
    					 const char * msg,
    					 ... ...);
    typedef void externalSubsetSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID);
    typedef void fatalErrorSAXFunc		(void * ctx,
    					 const char * msg,
    					 ... ...);
    typedef xmlEntityPtr getEntitySAXFunc	(void * ctx,
    					 const xmlChar * name);
    typedef xmlEntityPtr getParameterEntitySAXFunc	(void * ctx,
    						 const xmlChar * name);
    typedef int hasExternalSubsetSAXFunc	(void * ctx);
    typedef int hasInternalSubsetSAXFunc	(void * ctx);
    typedef void ignorableWhitespaceSAXFunc	(void * ctx,
    					 const xmlChar * ch,
    					 int len);
    typedef void internalSubsetSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID);
    typedef int isStandaloneSAXFunc		(void * ctx);
    typedef void notationDeclSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * publicId,
    					 const xmlChar * systemId);
    typedef void processingInstructionSAXFunc	(void * ctx,
    					 const xmlChar * target,
    					 const xmlChar * data);
    typedef void referenceSAXFunc		(void * ctx,
    					 const xmlChar * name);
    typedef xmlParserInputPtr resolveEntitySAXFunc	(void * ctx,
    						 const xmlChar * publicId,
    						 const xmlChar * systemId);
    typedef void setDocumentLocatorSAXFunc	(void * ctx,
    					 xmlSAXLocatorPtr loc);
    typedef void startDocumentSAXFunc		(void * ctx);
    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 startElementSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar ** atts);
    typedef void unparsedEntityDeclSAXFunc	(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * publicId,
    					 const xmlChar * systemId,
    					 const xmlChar * notationName);
    typedef void warningSAXFunc			(void * ctx,
    					 const char * msg,
    					 ... ...);
    long	xmlByteConsumed			(xmlParserCtxtPtr ctxt);
    void	xmlCleanupGlobals		(void);
    void	xmlCleanupParser		(void);
    void	xmlClearNodeInfoSeq		(xmlParserNodeInfoSeqPtr seq);
    void	xmlClearParserCtxt		(xmlParserCtxtPtr ctxt);
    xmlParserCtxtPtr	xmlCreateDocParserCtxt	(const xmlChar * str);
    xmlParserCtxtPtr	xmlCreateIOParserCtxt	(xmlSAXHandlerPtr sax,
    						 void * user_data,
    						 xmlInputReadCallback ioread,
    						 xmlInputCloseCallback ioclose,
    						 void * ioctx,
    						 xmlCharEncoding enc);
    xmlParserCtxtPtr	xmlCreatePushParserCtxt	(xmlSAXHandlerPtr sax,
    						 void * user_data,
    						 const char * chunk,
    						 int size,
    						 const char * filename);
    xmlDocPtr	xmlCtxtParseDocument	(xmlParserCtxtPtr ctxt,
    					 xmlParserInputPtr input);
    xmlDocPtr	xmlCtxtReadDoc		(xmlParserCtxtPtr ctxt,
    					 const xmlChar * str,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlCtxtReadFd		(xmlParserCtxtPtr ctxt,
    					 int fd,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlCtxtReadFile		(xmlParserCtxtPtr ctxt,
    					 const char * filename,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlCtxtReadIO		(xmlParserCtxtPtr ctxt,
    					 xmlInputReadCallback ioread,
    					 xmlInputCloseCallback ioclose,
    					 void * ioctx,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlCtxtReadMemory	(xmlParserCtxtPtr ctxt,
    					 const char * buffer,
    					 int size,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    void	xmlCtxtReset			(xmlParserCtxtPtr ctxt);
    int	xmlCtxtResetPush		(xmlParserCtxtPtr ctxt,
    					 const char * chunk,
    					 int size,
    					 const char * filename,
    					 const char * encoding);
    void	xmlCtxtSetErrorHandler		(xmlParserCtxtPtr ctxt,
    					 xmlStructuredErrorFunc handler,
    					 void * data);
    void	xmlCtxtSetMaxAmplification	(xmlParserCtxtPtr ctxt,
    					 unsigned maxAmpl);
    int	xmlCtxtSetOptions		(xmlParserCtxtPtr ctxt,
    					 int options);
    int	xmlCtxtUseOptions		(xmlParserCtxtPtr ctxt,
    					 int options);
    typedef xmlParserInputPtr xmlExternalEntityLoader	(const char * URL,
    						 const char * ID,
    						 xmlParserCtxtPtr context);
    void	xmlFreeParserCtxt		(xmlParserCtxtPtr ctxt);
    xmlExternalEntityLoader	xmlGetExternalEntityLoader	(void);
    int	xmlGetFeature			(xmlParserCtxtPtr ctxt,
    					 const char * name,
    					 void * result);
    int	xmlGetFeaturesList		(int * len,
    					 const char ** result);
    int	xmlHasFeature			(xmlFeature feature);
    xmlDtdPtr	xmlIOParseDTD		(xmlSAXHandlerPtr sax,
    					 xmlParserInputBufferPtr input,
    					 xmlCharEncoding enc);
    void	xmlInitGlobals			(void);
    void	xmlInitNodeInfoSeq		(xmlParserNodeInfoSeqPtr seq);
    void	xmlInitParser			(void);
    int	xmlInitParserCtxt		(xmlParserCtxtPtr ctxt);
    int	xmlKeepBlanksDefault		(int val);
    int	xmlLineNumbersDefault		(int val);
    xmlParserInputPtr	xmlLoadExternalEntity	(const char * URL,
    						 const char * ID,
    						 xmlParserCtxtPtr ctxt);
    xmlParserInputPtr	xmlNewIOInputStream	(xmlParserCtxtPtr ctxt,
    						 xmlParserInputBufferPtr buf,
    						 xmlCharEncoding enc);
    xmlParserCtxtPtr	xmlNewParserCtxt	(void);
    xmlParserCtxtPtr	xmlNewSAXParserCtxt	(const xmlSAXHandler * sax,
    						 void * userData);
    int	xmlParseBalancedChunkMemory	(xmlDocPtr doc,
    					 xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 int depth,
    					 const xmlChar * string,
    					 xmlNodePtr * lst);
    int	xmlParseBalancedChunkMemoryRecover	(xmlDocPtr doc,
    						 xmlSAXHandlerPtr sax,
    						 void * user_data,
    						 int depth,
    						 const xmlChar * string,
    						 xmlNodePtr * listOut,
    						 int recover);
    int	xmlParseChunk			(xmlParserCtxtPtr ctxt,
    					 const char * chunk,
    					 int size,
    					 int terminate);
    int	xmlParseCtxtExternalEntity	(xmlParserCtxtPtr ctxt,
    					 const xmlChar * URL,
    					 const xmlChar * ID,
    					 xmlNodePtr * listOut);
    xmlDtdPtr	xmlParseDTD		(const xmlChar * ExternalID,
    					 const xmlChar * SystemID);
    xmlDocPtr	xmlParseDoc		(const xmlChar * cur);
    int	xmlParseDocument		(xmlParserCtxtPtr ctxt);
    xmlDocPtr	xmlParseEntity		(const char * filename);
    int	xmlParseExtParsedEnt		(xmlParserCtxtPtr ctxt);
    int	xmlParseExternalEntity		(xmlDocPtr doc,
    					 xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 int depth,
    					 const xmlChar * URL,
    					 const xmlChar * ID,
    					 xmlNodePtr * list);
    xmlDocPtr	xmlParseFile		(const char * filename);
    xmlParserErrors	xmlParseInNodeContext	(xmlNodePtr node,
    					 const char * data,
    					 int datalen,
    					 int options,
    					 xmlNodePtr * lst);
    xmlDocPtr	xmlParseMemory		(const char * buffer,
    					 int size);
    void	xmlParserAddNodeInfo		(xmlParserCtxtPtr ctxt,
    					 xmlParserNodeInfoPtr info);
    const xmlParserNodeInfo *	xmlParserFindNodeInfo	(xmlParserCtxtPtr ctx,
    							 xmlNodePtr node);
    unsigned long	xmlParserFindNodeInfoIndex	(xmlParserNodeInfoSeqPtr seq,
    						 xmlNodePtr node);
    typedef void xmlParserInputDeallocate	(xmlChar * str);
    int	xmlParserInputGrow		(xmlParserInputPtr in,
    					 int len);
    int	xmlParserInputRead		(xmlParserInputPtr in,
    					 int len);
    int	xmlPedanticParserDefault	(int val);
    xmlDocPtr	xmlReadDoc		(const xmlChar * cur,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlReadFd		(int fd,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlReadFile		(const char * filename,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlReadIO		(xmlInputReadCallback ioread,
    					 xmlInputCloseCallback ioclose,
    					 void * ioctx,
    					 const char * URL,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlReadMemory		(const char * buffer,
    					 int size,
    					 const char * url,
    					 const char * encoding,
    					 int options);
    xmlDocPtr	xmlRecoverDoc		(const xmlChar * cur);
    xmlDocPtr	xmlRecoverFile		(const char * filename);
    xmlDocPtr	xmlRecoverMemory	(const char * buffer,
    					 int size);
    xmlDtdPtr	xmlSAXParseDTD		(xmlSAXHandlerPtr sax,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID);
    xmlDocPtr	xmlSAXParseDoc		(xmlSAXHandlerPtr sax,
    					 const xmlChar * cur,
    					 int recovery);
    xmlDocPtr	xmlSAXParseEntity	(xmlSAXHandlerPtr sax,
    					 const char * filename);
    xmlDocPtr	xmlSAXParseFile		(xmlSAXHandlerPtr sax,
    					 const char * filename,
    					 int recovery);
    xmlDocPtr	xmlSAXParseFileWithData	(xmlSAXHandlerPtr sax,
    					 const char * filename,
    					 int recovery,
    					 void * data);
    xmlDocPtr	xmlSAXParseMemory	(xmlSAXHandlerPtr sax,
    					 const char * buffer,
    					 int size,
    					 int recovery);
    xmlDocPtr	xmlSAXParseMemoryWithData	(xmlSAXHandlerPtr sax,
    						 const char * buffer,
    						 int size,
    						 int recovery,
    						 void * data);
    int	xmlSAXUserParseFile		(xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 const char * filename);
    int	xmlSAXUserParseMemory		(xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 const char * buffer,
    					 int size);
    void	xmlSetExternalEntityLoader	(xmlExternalEntityLoader f);
    int	xmlSetFeature			(xmlParserCtxtPtr ctxt,
    					 const char * name,
    					 void * value);
    void	xmlSetupParserForBuffer		(xmlParserCtxtPtr ctxt,
    					 const xmlChar * buffer,
    					 const char * filename);
    void	xmlStopParser			(xmlParserCtxtPtr ctxt);
    int	xmlSubstituteEntitiesDefault	(int val);
    int	xmlThrDefDoValidityCheckingDefaultValue	(int v);
    int	xmlThrDefGetWarningsDefaultValue	(int v);
    int	xmlThrDefKeepBlanksDefaultValue	(int v);
    int	xmlThrDefLineNumbersDefaultValue	(int v);
    int	xmlThrDefLoadExtDtdDefaultValue	(int v);
    int	xmlThrDefParserDebugEntities	(int v);
    int	xmlThrDefPedanticParserDefaultValue	(int v);
    int	xmlThrDefSubstituteEntitiesDefaultValue	(int v);

## Description

## Details

### Macro XML_DEFAULT_VERSION

    #define XML_DEFAULT_VERSION;

The default version of XML used: 1.0

### Macro XML_SAX2_MAGIC

    #define XML_SAX2_MAGIC;

Special constant found in SAX2 blocks initialized fields

### Structure xmlAttrHashBucket

    struct _xmlAttrHashBucket {
    The content of this structure is not made public by the API.
    } xmlAttrHashBucket;

### Enum xmlFeature

    enum xmlFeature {
        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 /* unused */
        XML_WITH_ZLIB = 31
        XML_WITH_ICU = 32
        XML_WITH_LZMA = 33
        XML_WITH_NONE = 99999 /*  just to be sure of allocation size */
    };

### Enum xmlParserInputState

    enum xmlParserInputState {
        XML_PARSER_EOF = -1 /* nothing is to be parsed */
        XML_PARSER_START = 0 /* nothing has been parsed */
        XML_PARSER_MISC = 1 /* Misc* before int subset */
        XML_PARSER_PI = 2 /* Within a processing instruction */
        XML_PARSER_DTD = 3 /* within some DTD content */
        XML_PARSER_PROLOG = 4 /* Misc* after internal subset */
        XML_PARSER_COMMENT = 5 /* within a comment */
        XML_PARSER_START_TAG = 6 /* within a start tag */
        XML_PARSER_CONTENT = 7 /* within the content */
        XML_PARSER_CDATA_SECTION = 8 /* within a CDATA section */
        XML_PARSER_END_TAG = 9 /* within a closing tag */
        XML_PARSER_ENTITY_DECL = 10 /* within an entity declaration */
        XML_PARSER_ENTITY_VALUE = 11 /* within an entity value in a decl */
        XML_PARSER_ATTRIBUTE_VALUE = 12 /* within an attribute value */
        XML_PARSER_SYSTEM_LITERAL = 13 /* within a SYSTEM value */
        XML_PARSER_EPILOG = 14 /* the Misc* after the last end tag */
        XML_PARSER_IGNORE = 15 /* within an IGNORED section */
        XML_PARSER_PUBLIC_LITERAL = 16 /* within a PUBLIC value */
        XML_PARSER_XML_DECL = 17 /*  before XML decl (but after BOM) */
    };

### Enum xmlParserMode

    enum xmlParserMode {
        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
    };

### Structure xmlParserNodeInfo

    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
    } xmlParserNodeInfo;

### Typedef xmlParserNodeInfoPtr

    xmlParserNodeInfo * xmlParserNodeInfoPtr;

### Structure xmlParserNodeInfoSeq

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

### Typedef xmlParserNodeInfoSeqPtr

    xmlParserNodeInfoSeq * xmlParserNodeInfoSeqPtr;

### Structure xmlParserNsData

    struct _xmlParserNsData {
    The content of this structure is not made public by the API.
    } xmlParserNsData;

### Enum xmlParserOption

    enum xmlParserOption {
        XML_PARSE_RECOVER = 1 /* recover on errors */
        XML_PARSE_NOENT = 2 /* substitute entities */
        XML_PARSE_DTDLOAD = 4 /* load the external subset */
        XML_PARSE_DTDATTR = 8 /* default DTD attributes */
        XML_PARSE_DTDVALID = 16 /* validate with the DTD */
        XML_PARSE_NOERROR = 32 /* suppress error reports */
        XML_PARSE_NOWARNING = 64 /* suppress warning reports */
        XML_PARSE_PEDANTIC = 128 /* pedantic error reporting */
        XML_PARSE_NOBLANKS = 256 /* remove blank nodes */
        XML_PARSE_SAX1 = 512 /* use the SAX1 interface internally */
        XML_PARSE_XINCLUDE = 1024 /* Implement XInclude substitution */
        XML_PARSE_NONET = 2048 /* Forbid network access */
        XML_PARSE_NODICT = 4096 /* Do not reuse the context dictionary */
        XML_PARSE_NSCLEAN = 8192 /* remove redundant namespaces declarations */
        XML_PARSE_NOCDATA = 16384 /* merge CDATA as text nodes */
        XML_PARSE_NOXINCNODE = 32768 /* do not generate XINCLUDE START/END nodes */
        XML_PARSE_COMPACT = 65536 /* compact small text nodes; no modification of the tree allowed afterwards (will possibly crash if you try to modify the tree) */
        XML_PARSE_OLD10 = 131072 /* parse using XML-1.0 before update 5 */
        XML_PARSE_NOBASEFIX = 262144 /* do not fixup XINCLUDE xml:base uris */
        XML_PARSE_HUGE = 524288 /* relax any hardcoded limit from the parser */
        XML_PARSE_OLDSAX = 1048576 /* parse using SAX2 interface before 2.7.0 */
        XML_PARSE_IGNORE_ENC = 2097152 /* ignore internal document encoding hint */
        XML_PARSE_BIG_LINES = 4194304 /* Store big lines numbers in text PSVI field */
        XML_PARSE_NO_XXE = 8388608 /*  disable loading of external content */
    };

### Structure xmlSAXHandlerV1

    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
    } xmlSAXHandlerV1;

### Typedef xmlSAXHandlerV1Ptr

    xmlSAXHandlerV1 * xmlSAXHandlerV1Ptr;

### Structure xmlStartTag

    struct _xmlStartTag {
    The content of this structure is not made public by the API.
    } xmlStartTag;

### Function type attributeDeclSAXFunc

    void	attributeDeclSAXFunc		(void * ctx,
    					 const xmlChar * elem,
    					 const xmlChar * fullname,
    					 int type,
    					 int def,
    					 const xmlChar * defaultValue,
    					 xmlEnumerationPtr tree)

An attribute definition has been parsed.

`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

### Function type attributeSAXFunc

    void	attributeSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * 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.

`ctx`: | the user data (XML parser context)
`name`: | The attribute name, including namespace prefix
`value`: | The attribute value

### Function type cdataBlockSAXFunc

    void	cdataBlockSAXFunc		(void * ctx,
    					 const xmlChar * value,
    					 int len)

Called when a pcdata block has been parsed.

`ctx`: | the user data (XML parser context)
`value`: | The pcdata content
`len`: | the block length

### Function type charactersSAXFunc

    void	charactersSAXFunc		(void * ctx,
    					 const xmlChar * ch,
    					 int len)

Receiving some chars from the parser.

`ctx`: | the user data (XML parser context)
`ch`: | a xmlChar string
`len`: | the number of xmlChar

### Function type commentSAXFunc

    void	commentSAXFunc			(void * ctx,
    					 const xmlChar * value)

A comment has been parsed.

`ctx`: | the user data (XML parser context)
`value`: | the comment content

### Function type elementDeclSAXFunc

    void	elementDeclSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 int type,
    					 xmlElementContentPtr content)

An element definition has been parsed.

`ctx`: | the user data (XML parser context)
`name`: | the element name
`type`: | the element type
`content`: | the element value tree

### Function type endDocumentSAXFunc

    void	endDocumentSAXFunc		(void * ctx)

Called when the document end has been detected.

`ctx`: | the user data (XML parser context)

### Function type endElementNsSAX2Func

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

SAX2 callback when an element end has been detected by the parser. It provides the namespace information for the element.

`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

### Function type endElementSAXFunc

    void	endElementSAXFunc		(void * ctx,
    					 const xmlChar * name)

Called when the end of an element has been detected.

`ctx`: | the user data (XML parser context)
`name`: | The element name

### Function type entityDeclSAXFunc

    void	entityDeclSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 int type,
    					 const xmlChar * publicId,
    					 const xmlChar * systemId,
    					 xmlChar * content)

An entity definition has been parsed.

`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).

### Function type errorSAXFunc

    void	errorSAXFunc			(void * ctx,
    					 const char * msg,
    					 ... ...)

Display and format an error messages, callback.

`ctx`: | an XML parser context
`msg`: | the message to display/transmit
`...`: | extra parameters for the message display

### Function type externalSubsetSAXFunc

    void	externalSubsetSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID)

Callback on external subset declaration.

`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)

### Function type fatalErrorSAXFunc

    void	fatalErrorSAXFunc		(void * ctx,
    					 const char * msg,
    					 ... ...)

Display and format fatal error messages, callback. Note: so far fatalError() SAX callbacks are not used, error() get all the callbacks for errors.

`ctx`: | an XML parser context
`msg`: | the message to display/transmit
`...`: | extra parameters for the message display

### Function type getEntitySAXFunc

    xmlEntityPtr	getEntitySAXFunc	(void * ctx,
    					 const xmlChar * name)

Get an entity by name.

`ctx`: | the user data (XML parser context)
`name`: | The entity name
`Returns`: | the xmlEntityPtr if found.

### Function type getParameterEntitySAXFunc

    xmlEntityPtr	getParameterEntitySAXFunc	(void * ctx,
    						 const xmlChar * name)

Get a parameter entity by name.

`ctx`: | the user data (XML parser context)
`name`: | The entity name
`Returns`: | the xmlEntityPtr if found.

### Function type hasExternalSubsetSAXFunc

    int	hasExternalSubsetSAXFunc	(void * ctx)

Does this document has an external subset?

`ctx`: | the user data (XML parser context)
`Returns`: | 1 if true

### Function type hasInternalSubsetSAXFunc

    int	hasInternalSubsetSAXFunc	(void * ctx)

Does this document has an internal subset.

`ctx`: | the user data (XML parser context)
`Returns`: | 1 if true

### Function type ignorableWhitespaceSAXFunc

    void	ignorableWhitespaceSAXFunc	(void * ctx,
    					 const xmlChar * ch,
    					 int len)

Receiving some ignorable whitespaces from the parser. UNUSED: by default the DOM building will use characters.

`ctx`: | the user data (XML parser context)
`ch`: | a xmlChar string
`len`: | the number of xmlChar

### Function type internalSubsetSAXFunc

    void	internalSubsetSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID)

Callback on internal subset declaration.

`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)

### Function type isStandaloneSAXFunc

    int	isStandaloneSAXFunc		(void * ctx)

Is this document tagged standalone?

`ctx`: | the user data (XML parser context)
`Returns`: | 1 if true

### Function type notationDeclSAXFunc

    void	notationDeclSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * publicId,
    					 const xmlChar * systemId)

What to do when a notation declaration has been parsed.

`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

### Function type processingInstructionSAXFunc

    void	processingInstructionSAXFunc	(void * ctx,
    					 const xmlChar * target,
    					 const xmlChar * data)

A processing instruction has been parsed.

`ctx`: | the user data (XML parser context)
`target`: | the target name
`data`: | the PI data's

### Function type referenceSAXFunc

    void	referenceSAXFunc		(void * ctx,
    					 const xmlChar * name)

Called when an entity reference is detected.

`ctx`: | the user data (XML parser context)
`name`: | The entity name

### Function type resolveEntitySAXFunc

    xmlParserInputPtr	resolveEntitySAXFunc	(void * ctx,
    						 const xmlChar * publicId,
    						 const xmlChar * systemId)

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

`ctx`: | the user data (XML parser context)
`publicId`: | The public ID of the entity
`systemId`: | The system ID of the entity
`Returns`: | the xmlParserInputPtr if inlined or NULL for DOM behaviour.

### Function type setDocumentLocatorSAXFunc

    void	setDocumentLocatorSAXFunc	(void * ctx,
    					 xmlSAXLocatorPtr loc)

Receive the document locator at startup, actually xmlDefaultSAXLocator. Everything is available on the context, so this is useless in our case.

`ctx`: | the user data (XML parser context)
`loc`: | A SAX Locator

### Function type startDocumentSAXFunc

    void	startDocumentSAXFunc		(void * ctx)

Called when the document start being processed.

`ctx`: | the user data (XML parser context)

### Function type startElementNsSAX2Func

    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)

SAX2 callback when an element start has been detected by the parser. It provides the namespace information for the element, as well as the new namespace declarations on the element.

`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.

### Function type startElementSAXFunc

    void	startElementSAXFunc		(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar ** atts)

Called when an opening tag has been processed.

`ctx`: | the user data (XML parser context)
`name`: | The element name, including namespace prefix
`atts`: | An array of name/value attributes pairs, NULL terminated

### Function type unparsedEntityDeclSAXFunc

    void	unparsedEntityDeclSAXFunc	(void * ctx,
    					 const xmlChar * name,
    					 const xmlChar * publicId,
    					 const xmlChar * systemId,
    					 const xmlChar * notationName)

What to do when an unparsed entity declaration is parsed.

`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

### Function type warningSAXFunc

    void	warningSAXFunc			(void * ctx,
    					 const char * msg,
    					 ... ...)

Display and format a warning messages, callback.

`ctx`: | an XML parser context
`msg`: | the message to display/transmit
`...`: | extra parameters for the message display

### Function type xmlExternalEntityLoader

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

External entity loaders types.

`URL`: | The System ID of the resource requested
`ID`: | The Public ID of the resource requested
`context`: | the XML parser context
`Returns`: | the entity input parser.

### Function type xmlParserInputDeallocate

    void	xmlParserInputDeallocate	(xmlChar * str)

Callback for freeing some parser input allocations.

`str`: | the string to deallocate

### Variable oldXMLWDcompatibility

    const int oldXMLWDcompatibility;

Global setting, DEPRECATED.

### Variable xmlDefaultSAXHandler

    const xmlSAXHandlerV1 xmlDefaultSAXHandler;

DEPRECATED: This handler is unused and will be removed from future versions. Default SAX version1 handler for XML, builds the DOM tree

### Variable xmlDefaultSAXLocator

    const xmlSAXLocator xmlDefaultSAXLocator;

DEPRECATED: Don't use The default SAX Locator { getPublicId, getSystemId, getLineNumber, getColumnNumber}

### Variable xmlParserDebugEntities

    const int xmlParserDebugEntities;

DEPRECATED: Don't use Global setting, asking the parser to print out debugging information. while handling entities. Disabled by default

### Variable xmlParserVersion

    const char * const xmlParserVersion;

Constant string describing the internal version of the library

### xmlByteConsumed ()

    long	xmlByteConsumed			(xmlParserCtxtPtr ctxt)

This function provides the current index of the parser relative to the start of the current entity. This function is computed in bytes from the beginning starting at zero and finishing at the size in byte of the file if parsing a file. The function is of constant cost if the input is UTF-8 but can be costly if run on non-UTF-8 input.

`ctxt`: | an XML parser context
`Returns`: | the index in bytes from the beginning of the entity or -1 in case the index could not be computed.

### xmlCleanupGlobals ()

    void	xmlCleanupGlobals		(void)

DEPRECATED: This function is a no-op. Call xmlCleanupParser to free global state but see the warnings there. xmlCleanupParser should be only called once at program exit. In most cases, you don't have call cleanup functions at all.

### xmlCleanupParser ()

    void	xmlCleanupParser		(void)

This function name is somewhat misleading. It does not clean up parser state, it cleans up memory allocated by the library itself. It is a cleanup function for the XML library. It tries to reclaim all related global memory allocated for the library processing. It doesn't deallocate any document related memory. One should call xmlCleanupParser() only when the process has finished using the library and all XML/HTML documents built with it. See also xmlInitParser() which has the opposite function of preparing the library for operations. WARNING: if your application is multithreaded or has plugin support calling this may crash the application if another thread or a plugin is still using libxml2. It's sometimes very hard to guess if libxml2 is in use in the application, some libraries or plugins may use it without notice. In case of doubt abstain from calling this function or do it just before calling exit() to avoid leak reports from valgrind !

### xmlClearNodeInfoSeq ()

    void	xmlClearNodeInfoSeq		(xmlParserNodeInfoSeqPtr seq)

DEPRECATED: Don't use. -- Clear (release memory and reinitialize) node info sequence

`seq`: | a node info sequence pointer

### xmlClearParserCtxt ()

    void	xmlClearParserCtxt		(xmlParserCtxtPtr ctxt)

Clear (release owned resources) and reinitialize a parser context

`ctxt`: | an XML parser context

### xmlCreateDocParserCtxt ()

    xmlParserCtxtPtr	xmlCreateDocParserCtxt	(const xmlChar * str)

Creates a parser context for an XML in-memory document.

`str`: | a pointer to an array of xmlChar
`Returns`: | the new parser context or NULL

### xmlCreateIOParserCtxt ()

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

Create a parser context for using the XML parser with an existing I/O stream

`sax`: | a SAX handler (optional)
`user_data`: | user data for SAX callbacks (optional)
`ioread`: | an I/O read function
`ioclose`: | an I/O close function (optional)
`ioctx`: | an I/O handler
`enc`: | the charset encoding if known (deprecated)
`Returns`: | the new parser context or NULL

### xmlCreatePushParserCtxt ()

    xmlParserCtxtPtr	xmlCreatePushParserCtxt	(xmlSAXHandlerPtr sax,
    						 void * user_data,
    						 const char * chunk,
    						 int size,
    						 const char * filename)

Create a parser context for using the XML parser in push mode. See xmlParseChunk. Passing an initial chunk is useless and deprecated. @filename is used as base URI to fetch external entities and for error reports.

`sax`: | a SAX handler (optional)
`user_data`: | user data for SAX callbacks (optional)
`chunk`: | initial chunk (optional, deprecated)
`size`: | size of initial chunk in bytes
`filename`: | file name or URI (optional)
`Returns`: | the new parser context or NULL in case of error.

### xmlCtxtParseDocument ()

    xmlDocPtr	xmlCtxtParseDocument	(xmlParserCtxtPtr ctxt,
    					 xmlParserInputPtr input)

Parse an XML document and return the resulting document tree. Takes ownership of the input object. Available since 2.13.0.

`ctxt`: | an XML parser context
`input`: | parser input
`Returns`: | the resulting document tree or NULL

### xmlCtxtReadDoc ()

    xmlDocPtr	xmlCtxtReadDoc		(xmlParserCtxtPtr ctxt,
    					 const xmlChar * str,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Parse an XML in-memory document and build a tree. @URL is used as base to resolve external entities and for error reporting. See xmlCtxtUseOptions for details.

`ctxt`: | an XML parser context
`str`: | a pointer to a zero terminated string
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlCtxtReadFd ()

    xmlDocPtr	xmlCtxtReadFd		(xmlParserCtxtPtr ctxt,
    					 int fd,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Parse an XML document from a file descriptor and build a tree. NOTE that the file descriptor will not be closed when the context is freed or reset. @URL is used as base to resolve external entities and for error reporting. See xmlCtxtUseOptions for details.

`ctxt`: | an XML parser context
`fd`: | an open file descriptor
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlCtxtReadFile ()

    xmlDocPtr	xmlCtxtReadFile		(xmlParserCtxtPtr ctxt,
    					 const char * filename,
    					 const char * encoding,
    					 int options)

Parse an XML file from the filesystem, the network or a user-defined resource loader.

`ctxt`: | an XML parser context
`filename`: | a file or URL
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlCtxtReadIO ()

    xmlDocPtr	xmlCtxtReadIO		(xmlParserCtxtPtr ctxt,
    					 xmlInputReadCallback ioread,
    					 xmlInputCloseCallback ioclose,
    					 void * ioctx,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

parse an XML document from I/O functions and source and build a tree. This reuses the existing @ctxt parser context @URL is used as base to resolve external entities and for error reporting. See xmlCtxtUseOptions for details.

`ctxt`: | an XML parser context
`ioread`: | an I/O read function
`ioclose`: | an I/O close function
`ioctx`: | an I/O handler
`URL`: | the base URL to use for the document
`encoding`: | the document encoding, or NULL
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlCtxtReadMemory ()

    xmlDocPtr	xmlCtxtReadMemory	(xmlParserCtxtPtr ctxt,
    					 const char * buffer,
    					 int size,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Parse an XML in-memory document and build a tree. The input buffer must not contain a terminating null byte. @URL is used as base to resolve external entities and for error reporting. See xmlCtxtUseOptions for details.

`ctxt`: | an XML parser context
`buffer`: | a pointer to a char array
`size`: | the size of the array
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlCtxtReset ()

    void	xmlCtxtReset			(xmlParserCtxtPtr ctxt)

Reset a parser context

`ctxt`: | an XML parser context

### xmlCtxtResetPush ()

    int	xmlCtxtResetPush		(xmlParserCtxtPtr ctxt,
    					 const char * chunk,
    					 int size,
    					 const char * filename,
    					 const char * encoding)

Reset a push parser context

`ctxt`: | an XML parser context
`chunk`: | a pointer to an array of chars
`size`: | number of chars in the array
`filename`: | an optional file name or URI
`encoding`: | the document encoding, or NULL
`Returns`: | 0 in case of success and 1 in case of error

### xmlCtxtSetErrorHandler ()

    void	xmlCtxtSetErrorHandler		(xmlParserCtxtPtr ctxt,
    					 xmlStructuredErrorFunc handler,
    					 void * data)

Register a callback function that will be called on errors and warnings. If handler is NULL, the error handler will be deactivated. This is the recommended way to collect errors from the parser and takes precedence over all other error reporting mechanisms. These are (in order of precedence): - per-context structured handler (xmlCtxtSetErrorHandler) - per-context structured "serror" SAX handler - global structured handler (xmlSetStructuredErrorFunc) - per-context generic "error" and "warning" SAX handlers - global generic handler (xmlSetGenericErrorFunc) - print to stderr Available since 2.13.0.

`ctxt`: | an XML parser context
`handler`: | error handler
`data`: | data for error handler

### xmlCtxtSetMaxAmplification ()

    void	xmlCtxtSetMaxAmplification	(xmlParserCtxtPtr ctxt,
    					 unsigned maxAmpl)

To protect against exponential entity expansion ("billion laughs"), the size of serialized output is (roughly) limited to the input size multiplied by this factor. The default value is 5. When working with documents making heavy use of entity expansion, it can be necessary to increase the value. For security reasons, this should only be considered when processing trusted input.

`ctxt`: | an XML parser context
`maxAmpl`: | maximum amplification factor

### xmlCtxtSetOptions ()

    int	xmlCtxtSetOptions		(xmlParserCtxtPtr ctxt,
    					 int options)

Applies the options to the parser context. Unset options are cleared. Available since 2.13.0. With older versions, you can use xmlCtxtUseOptions. XML_PARSE_RECOVER Enable "recovery" mode which allows non-wellformed documents. How this mode behaves exactly is unspecified and may change without further notice. Use of this feature is DISCOURAGED. XML_PARSE_NOENT Despite the confusing name, this option enables substitution of entities. The resulting tree won't contain any entity reference nodes. This option also enables loading of external entities (both general and parameter entities) which is dangerous. If you process untrusted data, it's recommended to set the XML_PARSE_NO_XXE option to disable loading of external entities. XML_PARSE_DTDLOAD Enables loading of an external DTD and the loading and substitution of external parameter entities. Has no effect if XML_PARSE_NO_XXE is set. XML_PARSE_DTDATTR Adds default attributes from the DTD to the result document. Implies XML_PARSE_DTDLOAD, but loading of external content can be disabled with XML_PARSE_NO_XXE. XML_PARSE_DTDVALID This option enables DTD validation which requires to load external DTDs and external entities (both general and parameter entities) unless XML_PARSE_NO_XXE was set. XML_PARSE_NO_XXE Disables loading of external DTDs or entities. XML_PARSE_NOERROR Disable error and warning reports to the error handlers. Errors are still accessible with xmlCtxtGetLastError. XML_PARSE_NOWARNING Disable warning reports. XML_PARSE_PEDANTIC Enable some pedantic warnings. XML_PARSE_NOBLANKS Remove some text nodes containing only whitespace from the result document. Which nodes are removed depends on DTD element declarations or a conservative heuristic. The reindenting feature of the serialization code relies on this option to be set when parsing. Use of this option is DISCOURAGED. XML_PARSE_SAX1 Always invoke the deprecated SAX1 startElement and endElement handlers. This option is DEPRECATED. XML_PARSE_NONET Disable network access with the builtin HTTP and FTP clients. XML_PARSE_NODICT Create a document without interned strings, making all strings separate memory allocations. XML_PARSE_NSCLEAN Remove redundant namespace declarations from the result document. XML_PARSE_NOCDATA Output normal text nodes instead of CDATA nodes. XML_PARSE_COMPACT Store small strings directly in the node struct to save memory. XML_PARSE_OLD10 Use old Name productions from before XML 1.0 Fifth Edition. This options is DEPRECATED. XML_PARSE_HUGE Relax some internal limits. Maximum size of text nodes, tags, comments, processing instructions, CDATA sections, entity values normal: 10M huge: 1B Maximum size of names, system literals, pubid literals normal: 50K huge: 10M Maximum nesting depth of elements normal: 256 huge: 2048 Maximum nesting depth of entities normal: 20 huge: 40 XML_PARSE_OLDSAX Enable an unspecified legacy mode for SAX parsers. This option is DEPRECATED. XML_PARSE_IGNORE_ENC Ignore the encoding in the XML declaration. This option is mostly unneeded these days. The only effect is to enforce UTF-8 decoding of ASCII-like data. XML_PARSE_BIG_LINES Enable reporting of line numbers larger than 65535.

`ctxt`: | an XML parser context
`options`: | a bitmask of xmlParserOption values
`Returns`: | 0 in case of success, the set of unknown or unimplemented options in case of error.

### xmlCtxtUseOptions ()

    int	xmlCtxtUseOptions		(xmlParserCtxtPtr ctxt,
    					 int options)

DEPRECATED: Use xmlCtxtSetOptions. Applies the options to the parser context. The following options are never cleared and can only be enabled: XML_PARSE_NOERROR XML_PARSE_NOWARNING XML_PARSE_NONET XML_PARSE_NSCLEAN XML_PARSE_NOCDATA XML_PARSE_COMPACT XML_PARSE_OLD10 XML_PARSE_HUGE XML_PARSE_OLDSAX XML_PARSE_IGNORE_ENC XML_PARSE_BIG_LINES

`ctxt`: | an XML parser context
`options`: | a combination of xmlParserOption
`Returns`: | 0 in case of success, the set of unknown or unimplemented options in case of error.

### xmlFreeParserCtxt ()

    void	xmlFreeParserCtxt		(xmlParserCtxtPtr ctxt)

Free all the memory used by a parser context. However the parsed document in ctxt->myDoc is not freed.

`ctxt`: | an XML parser context

### xmlGetExternalEntityLoader ()

    xmlExternalEntityLoader	xmlGetExternalEntityLoader	(void)

Get the default external entity resolver function for the application

`Returns`: | the xmlExternalEntityLoader function pointer

### xmlGetFeature ()

    int	xmlGetFeature			(xmlParserCtxtPtr ctxt,
    					 const char * name,
    					 void * result)

Read the current value of one feature of this parser instance

`ctxt`: | an XML/HTML parser context
`name`: | the feature name
`result`: | location to store the result
`Returns`: | -1 in case or error, 0 otherwise

### xmlGetFeaturesList ()

    int	xmlGetFeaturesList		(int * len,
    					 const char ** result)

Copy at most *@len feature names into the @result array

`len`: | the length of the features name array (input/output)
`result`: | an array of string to be filled with the features name.
`Returns`: | -1 in case or error, or the total number of features, len is updated with the number of strings copied, strings must not be deallocated

### xmlHasFeature ()

    int	xmlHasFeature			(xmlFeature feature)

Examines if the library has been compiled with a given feature.

`feature`: | the feature to be examined
`Returns`: | a non-zero value if the feature exist, otherwise zero. Returns zero (0) if the feature does not exist or an unknown unknown feature is requested, non-zero otherwise.

### xmlIOParseDTD ()

    xmlDtdPtr	xmlIOParseDTD		(xmlSAXHandlerPtr sax,
    					 xmlParserInputBufferPtr input,
    					 xmlCharEncoding enc)

Load and parse a DTD

`sax`: | the SAX handler block or NULL
`input`: | an Input Buffer
`enc`: | the charset encoding if known
`Returns`: | the resulting xmlDtdPtr or NULL in case of error. @input will be freed by the function in any case.

### xmlInitGlobals ()

    void	xmlInitGlobals			(void)

DEPRECATED: Alias for xmlInitParser.

### xmlInitNodeInfoSeq ()

    void	xmlInitNodeInfoSeq		(xmlParserNodeInfoSeqPtr seq)

DEPRECATED: Don't use. -- Initialize (set to initial state) node info sequence

`seq`: | a node info sequence pointer

### xmlInitParser ()

    void	xmlInitParser			(void)

Initialization function for the XML parser. Call once from the main thread before using the library in multithreaded programs.

### xmlInitParserCtxt ()

    int	xmlInitParserCtxt		(xmlParserCtxtPtr ctxt)

DEPRECATED: Internal function which will be made private in a future version. Initialize a parser context

`ctxt`: | an XML parser context
`Returns`: | 0 in case of success and -1 in case of error

### xmlKeepBlanksDefault ()

    int	xmlKeepBlanksDefault		(int val)

DEPRECATED: Use the modern options API with XML_PARSE_NOBLANKS. Set and return the previous value for default blanks text nodes support. The 1.x version of the parser used an heuristic to try to detect ignorable white spaces. As a result the SAX callback was generating xmlSAX2IgnorableWhitespace() callbacks instead of characters() one, and when using the DOM output text nodes containing those blanks were not generated. The 2.x and later version will switch to the XML standard way and ignorableWhitespace() are only generated when running the parser in validating mode and when the current element doesn't allow CDATA or mixed content. This function is provided as a way to force the standard behavior on 1.X libs and to switch back to the old mode for compatibility when running 1.X client code on 2.X . Upgrade of 1.X code should be done by using xmlIsBlankNode() commodity function to detect the "empty" nodes generated. This value also affect autogeneration of indentation when saving code if blanks sections are kept, indentation is not generated.

`val`: | int 0 or 1
`Returns`: | the last value for 0 for no substitution, 1 for substitution.

### xmlLineNumbersDefault ()

    int	xmlLineNumbersDefault		(int val)

DEPRECATED: The modern options API always enables line numbers. Set and return the previous value for enabling line numbers in elements contents. This may break on old application and is turned off by default.

`val`: | int 0 or 1
`Returns`: | the last value for 0 for no substitution, 1 for substitution.

### xmlLoadExternalEntity ()

    xmlParserInputPtr	xmlLoadExternalEntity	(const char * URL,
    						 const char * ID,
    						 xmlParserCtxtPtr ctxt)

@URL is a filename or URL. If if contains the substring "://", it is assumed to be a Legacy Extended IRI. Otherwise, it is treated as a filesystem path. @ID is an optional XML public ID, typically from a doctype declaration. It is used for catalog lookups. The following resource loaders will be called if they were registered (in order of precedence): - the global external entity loader set with xmlSetExternalEntityLoader - the per-thread xmlParserInputBufferCreateFilenameFunc set with xmlParserInputBufferCreateFilenameDefault - the default loader which will return - the result from a matching global input callback set with xmlRegisterInputCallbacks - a HTTP resource if support is compiled in. - a file opened from the filesystem, with automatic detection of compressed files if support is compiled in.

`URL`: | the URL for the entity to load
`ID`: | the Public ID for the entity to load
`ctxt`: | the context in which the entity is called or NULL
`Returns`: | the xmlParserInputPtr or NULL

### xmlNewIOInputStream ()

    xmlParserInputPtr	xmlNewIOInputStream	(xmlParserCtxtPtr ctxt,
    						 xmlParserInputBufferPtr buf,
    						 xmlCharEncoding enc)

Create a new input stream structure encapsulating the @input into a stream suitable for the parser.

`ctxt`: | an XML parser context
`buf`: | an input buffer
`enc`: | the charset encoding if known
`Returns`: | the new input stream or NULL

### xmlNewParserCtxt ()

    xmlParserCtxtPtr	xmlNewParserCtxt	(void)

Allocate and initialize a new parser context.

`Returns`: | the xmlParserCtxtPtr or NULL

### xmlNewSAXParserCtxt ()

    xmlParserCtxtPtr	xmlNewSAXParserCtxt	(const xmlSAXHandler * sax,
    						 void * userData)

Allocate and initialize a new SAX parser context. If userData is NULL, the parser context will be passed as user data. Available since 2.11.0. If you want support older versions, it's best to invoke xmlNewParserCtxt and set ctxt->sax with struct assignment.

`sax`: | SAX handler
`userData`: | user data
`Returns`: | the xmlParserCtxtPtr or NULL if memory allocation failed.

### xmlParseBalancedChunkMemory ()

    int	xmlParseBalancedChunkMemory	(xmlDocPtr doc,
    					 xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 int depth,
    					 const xmlChar * string,
    					 xmlNodePtr * lst)

Parse a well-balanced chunk of an XML document called by the parser The allowed sequence for the Well Balanced Chunk is the one defined by the content production in the XML grammar: [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*

`doc`: | the document the chunk pertains to (must not be NULL)
`sax`: | the SAX handler block (possibly NULL)
`user_data`: | The user data returned on SAX callbacks (possibly NULL)
`depth`: | Used for loop detection, use 0
`string`: | the input string in UTF8 or ISO-Latin (zero terminated)
`lst`: | the return value for the set of parsed nodes
`Returns`: | 0 if the chunk is well balanced, -1 in case of args problem and the parser error code otherwise

### xmlParseBalancedChunkMemoryRecover ()

    int	xmlParseBalancedChunkMemoryRecover	(xmlDocPtr doc,
    						 xmlSAXHandlerPtr sax,
    						 void * user_data,
    						 int depth,
    						 const xmlChar * string,
    						 xmlNodePtr * listOut,
    						 int recover)

Parse a well-balanced chunk of an XML document The allowed sequence for the Well Balanced Chunk is the one defined by the content production in the XML grammar: [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*

`doc`: | the document the chunk pertains to (must not be NULL)
`sax`: | the SAX handler block (possibly NULL)
`user_data`: | The user data returned on SAX callbacks (possibly NULL)
`depth`: | Used for loop detection, use 0
`string`: | the input string in UTF8 or ISO-Latin (zero terminated)
`listOut`: | the return value for the set of parsed nodes
`recover`: | return nodes even if the data is broken (use 0)
`Returns`: | 0 if the chunk is well balanced, or thehe parser error code otherwise. In case recover is set to 1, the nodelist will not be empty even if the parsed chunk is not well balanced, assuming the parsing succeeded to some extent.

### xmlParseChunk ()

    int	xmlParseChunk			(xmlParserCtxtPtr ctxt,
    					 const char * chunk,
    					 int size,
    					 int terminate)

Parse a chunk of memory in push parser mode. Assumes that the parser context was initialized with xmlCreatePushParserCtxt. The last chunk, which will often be empty, must be marked with the @terminate flag. With the default SAX callbacks, the resulting document will be available in ctxt->myDoc. This pointer will not be freed by the library. If the document isn't well-formed, ctxt->myDoc is set to NULL. The push parser doesn't support recovery mode.

`ctxt`: | an XML parser context
`chunk`: | chunk of memory
`size`: | size of chunk in bytes
`terminate`: | last chunk indicator
`Returns`: | an xmlParserErrors code (0 on success).

### xmlParseCtxtExternalEntity ()

    int	xmlParseCtxtExternalEntity	(xmlParserCtxtPtr ctxt,
    					 const xmlChar * URL,
    					 const xmlChar * ID,
    					 xmlNodePtr * listOut)

Parse an external general entity within an existing parsing context An external general parsed entity is well-formed if it matches the production labeled extParsedEnt. [78] extParsedEnt ::= TextDecl? content

`ctxt`: | the existing parsing context
`URL`: | the URL for the entity to load
`ID`: | the System ID for the entity to load
`listOut`: | the return value for the set of parsed nodes
`Returns`: | 0 if the entity is well formed, -1 in case of args problem and the parser error code otherwise

### xmlParseDTD ()

    xmlDtdPtr	xmlParseDTD		(const xmlChar * ExternalID,
    					 const xmlChar * SystemID)

Load and parse an external subset.

`ExternalID`: | a NAME* containing the External ID of the DTD
`SystemID`: | a NAME* containing the URL to the DTD
`Returns`: | the resulting xmlDtdPtr or NULL in case of error.

### xmlParseDoc ()

    xmlDocPtr	xmlParseDoc		(const xmlChar * cur)

DEPRECATED: Use xmlReadDoc. parse an XML in-memory document and build a tree.

`cur`: | a pointer to an array of xmlChar
`Returns`: | the resulting document tree

### xmlParseDocument ()

    int	xmlParseDocument		(xmlParserCtxtPtr ctxt)

Parse an XML document and invoke the SAX handlers. This is useful if you're only interested in custom SAX callbacks. If you want a document tree, use xmlCtxtParseDocument.

`ctxt`: | an XML parser context
`Returns`: | 0, -1 in case of error.

### xmlParseEntity ()

    xmlDocPtr	xmlParseEntity		(const char * filename)

parse an XML external entity out of context and build a tree. [78] extParsedEnt ::= TextDecl? content This correspond to a "Well Balanced" chunk

`filename`: | the filename
`Returns`: | the resulting document tree

### xmlParseExtParsedEnt ()

    int	xmlParseExtParsedEnt		(xmlParserCtxtPtr ctxt)

parse a general parsed entity An external general parsed entity is well-formed if it matches the production labeled extParsedEnt. [78] extParsedEnt ::= TextDecl? content

`ctxt`: | an XML parser context
`Returns`: | 0, -1 in case of error. the parser context is augmented as a result of the parsing.

### xmlParseExternalEntity ()

    int	xmlParseExternalEntity		(xmlDocPtr doc,
    					 xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 int depth,
    					 const xmlChar * URL,
    					 const xmlChar * ID,
    					 xmlNodePtr * list)

DEPRECATED: Use xmlParseCtxtExternalEntity. Parse an external general entity An external general parsed entity is well-formed if it matches the production labeled extParsedEnt. [78] extParsedEnt ::= TextDecl? content

`doc`: | the document the chunk pertains to
`sax`: | the SAX handler block (possibly NULL)
`user_data`: | The user data returned on SAX callbacks (possibly NULL)
`depth`: | Used for loop detection, use 0
`URL`: | the URL for the entity to load
`ID`: | the System ID for the entity to load
`list`: | the return value for the set of parsed nodes
`Returns`: | 0 if the entity is well formed, -1 in case of args problem and the parser error code otherwise

### xmlParseFile ()

    xmlDocPtr	xmlParseFile		(const char * filename)

DEPRECATED: Use xmlReadFile. parse an XML file and build a tree. Automatic support for ZLIB/Compress compressed document is provided by default if found at compile-time.

`filename`: | the filename
`Returns`: | the resulting document tree if the file was wellformed, NULL otherwise.

### xmlParseInNodeContext ()

    xmlParserErrors	xmlParseInNodeContext	(xmlNodePtr node,
    					 const char * data,
    					 int datalen,
    					 int options,
    					 xmlNodePtr * lst)

Parse a well-balanced chunk of an XML document within the context (DTD, namespaces, etc ...) of the given node. The allowed sequence for the data is a Well Balanced Chunk defined by the content production in the XML grammar: [43] content ::= (element | CharData | Reference | CDSect | PI | Comment)*

`node`: | the context node
`data`: | the input string
`datalen`: | the input string length in bytes
`options`: | a combination of xmlParserOption
`lst`: | the return value for the set of parsed nodes
`Returns`: | XML_ERR_OK if the chunk is well balanced, and the parser error code otherwise

### xmlParseMemory ()

    xmlDocPtr	xmlParseMemory		(const char * buffer,
    					 int size)

DEPRECATED: Use xmlReadMemory. parse an XML in-memory block and build a tree.

`buffer`: | an pointer to a char array
`size`: | the size of the array
`Returns`: | the resulting document tree

### xmlParserAddNodeInfo ()

    void	xmlParserAddNodeInfo		(xmlParserCtxtPtr ctxt,
    					 xmlParserNodeInfoPtr info)

DEPRECATED: Don't use. Insert node info record into the sorted sequence

`ctxt`: | an XML parser context
`info`: | a node info sequence pointer

### xmlParserFindNodeInfo ()

    const xmlParserNodeInfo *	xmlParserFindNodeInfo	(xmlParserCtxtPtr ctx,
    							 xmlNodePtr node)

DEPRECATED: Don't use. Find the parser node info struct for a given node

`ctx`: | an XML parser context
`node`: | an XML node within the tree
`Returns`: | an xmlParserNodeInfo block pointer or NULL

### xmlParserFindNodeInfoIndex ()

    unsigned long	xmlParserFindNodeInfoIndex	(xmlParserNodeInfoSeqPtr seq,
    						 xmlNodePtr node)

DEPRECATED: Don't use. xmlParserFindNodeInfoIndex : Find the index that the info record for the given node is or should be at in a sorted sequence

`seq`: | a node info sequence pointer
`node`: | an XML node pointer
`Returns`: | a long indicating the position of the record

### xmlParserInputGrow ()

    int	xmlParserInputGrow		(xmlParserInputPtr in,
    					 int len)

DEPRECATED: Don't use. This function increase the input for the parser. It tries to preserve pointers to the input buffer, and keep already read data

`in`: | an XML parser input
`len`: | an indicative size for the lookahead
`Returns`: | the amount of char read, or -1 in case of error, 0 indicate the end of this entity

### xmlParserInputRead ()

    int	xmlParserInputRead		(xmlParserInputPtr in,
    					 int len)

DEPRECATED: This function was internal and is deprecated.

`in`: | an XML parser input
`len`: | an indicative size for the lookahead
`Returns`: | -1 as this is an error to use it.

### xmlPedanticParserDefault ()

    int	xmlPedanticParserDefault	(int val)

DEPRECATED: Use the modern options API with XML_PARSE_PEDANTIC. Set and return the previous value for enabling pedantic warnings.

`val`: | int 0 or 1
`Returns`: | the last value for 0 for no substitution, 1 for substitution.

### xmlReadDoc ()

    xmlDocPtr	xmlReadDoc		(const xmlChar * cur,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Convenience function to parse an XML document from a zero-terminated string. See xmlCtxtReadDoc for details.

`cur`: | a pointer to a zero terminated string
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlReadFd ()

    xmlDocPtr	xmlReadFd		(int fd,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Parse an XML from a file descriptor and build a tree. See xmlCtxtReadFd for details. NOTE that the file descriptor will not be closed when the context is freed or reset.

`fd`: | an open file descriptor
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlReadFile ()

    xmlDocPtr	xmlReadFile		(const char * filename,
    					 const char * encoding,
    					 int options)

Convenience function to parse an XML file from the filesystem, the network or a global user-define resource loader. See xmlCtxtReadFile for details.

`filename`: | a file or URL
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlReadIO ()

    xmlDocPtr	xmlReadIO		(xmlInputReadCallback ioread,
    					 xmlInputCloseCallback ioclose,
    					 void * ioctx,
    					 const char * URL,
    					 const char * encoding,
    					 int options)

Parse an XML document from I/O functions and context and build a tree. See xmlCtxtReadIO for details.

`ioread`: | an I/O read function
`ioclose`: | an I/O close function (optional)
`ioctx`: | an I/O handler
`URL`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlReadMemory ()

    xmlDocPtr	xmlReadMemory		(const char * buffer,
    					 int size,
    					 const char * url,
    					 const char * encoding,
    					 int options)

Parse an XML in-memory document and build a tree. The input buffer must not contain a terminating null byte. See xmlCtxtReadMemory for details.

`buffer`: | a pointer to a char array
`size`: | the size of the array
`url`: | base URL (optional)
`encoding`: | the document encoding (optional)
`options`: | a combination of xmlParserOption
`Returns`: | the resulting document tree

### xmlRecoverDoc ()

    xmlDocPtr	xmlRecoverDoc		(const xmlChar * cur)

DEPRECATED: Use xmlReadDoc with XML_PARSE_RECOVER. parse an XML in-memory document and build a tree. In the case the document is not Well Formed, a attempt to build a tree is tried anyway

`cur`: | a pointer to an array of xmlChar
`Returns`: | the resulting document tree or NULL in case of failure

### xmlRecoverFile ()

    xmlDocPtr	xmlRecoverFile		(const char * filename)

DEPRECATED: Use xmlReadFile with XML_PARSE_RECOVER. parse an XML file and build a tree. Automatic support for ZLIB/Compress compressed document is provided by default if found at compile-time. In the case the document is not Well Formed, it attempts to build a tree anyway

`filename`: | the filename
`Returns`: | the resulting document tree or NULL in case of failure

### xmlRecoverMemory ()

    xmlDocPtr	xmlRecoverMemory	(const char * buffer,
    					 int size)

DEPRECATED: Use xmlReadMemory with XML_PARSE_RECOVER. parse an XML in-memory block and build a tree. In the case the document is not Well Formed, an attempt to build a tree is tried anyway

`buffer`: | an pointer to a char array
`size`: | the size of the array
`Returns`: | the resulting document tree or NULL in case of error

### xmlSAXParseDTD ()

    xmlDtdPtr	xmlSAXParseDTD		(xmlSAXHandlerPtr sax,
    					 const xmlChar * ExternalID,
    					 const xmlChar * SystemID)

DEPRECATED: Don't use. Load and parse an external subset.

`sax`: | the SAX handler block
`ExternalID`: | a NAME* containing the External ID of the DTD
`SystemID`: | a NAME* containing the URL to the DTD
`Returns`: | the resulting xmlDtdPtr or NULL in case of error.

### xmlSAXParseDoc ()

    xmlDocPtr	xmlSAXParseDoc		(xmlSAXHandlerPtr sax,
    					 const xmlChar * cur,
    					 int recovery)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadDoc. parse an XML in-memory document and build a tree. It use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines.

`sax`: | the SAX handler block
`cur`: | a pointer to an array of xmlChar
`recovery`: | work in recovery mode, i.e. tries to read no Well Formed documents
`Returns`: | the resulting document tree

### xmlSAXParseEntity ()

    xmlDocPtr	xmlSAXParseEntity	(xmlSAXHandlerPtr sax,
    					 const char * filename)

DEPRECATED: Don't use. parse an XML external entity out of context and build a tree. It use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines. [78] extParsedEnt ::= TextDecl? content This correspond to a "Well Balanced" chunk

`sax`: | the SAX handler block
`filename`: | the filename
`Returns`: | the resulting document tree

### xmlSAXParseFile ()

    xmlDocPtr	xmlSAXParseFile		(xmlSAXHandlerPtr sax,
    					 const char * filename,
    					 int recovery)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadFile. parse an XML file and build a tree. Automatic support for ZLIB/Compress compressed document is provided by default if found at compile-time. It use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines.

`sax`: | the SAX handler block
`filename`: | the filename
`recovery`: | work in recovery mode, i.e. tries to read no Well Formed documents
`Returns`: | the resulting document tree

### xmlSAXParseFileWithData ()

    xmlDocPtr	xmlSAXParseFileWithData	(xmlSAXHandlerPtr sax,
    					 const char * filename,
    					 int recovery,
    					 void * data)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadFile. parse an XML file and build a tree. Automatic support for ZLIB/Compress compressed document is provided by default if found at compile-time. It use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines. User data (void *) is stored within the parser context in the context's _private member, so it is available nearly everywhere in libxml

`sax`: | the SAX handler block
`filename`: | the filename
`recovery`: | work in recovery mode, i.e. tries to read no Well Formed documents
`data`: | the userdata
`Returns`: | the resulting document tree

### xmlSAXParseMemory ()

    xmlDocPtr	xmlSAXParseMemory	(xmlSAXHandlerPtr sax,
    					 const char * buffer,
    					 int size,
    					 int recovery)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadMemory. parse an XML in-memory block and use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines.

`sax`: | the SAX handler block
`buffer`: | an pointer to a char array
`size`: | the size of the array
`recovery`: | work in recovery mode, i.e. tries to read not Well Formed documents
`Returns`: | the resulting document tree

### xmlSAXParseMemoryWithData ()

    xmlDocPtr	xmlSAXParseMemoryWithData	(xmlSAXHandlerPtr sax,
    						 const char * buffer,
    						 int size,
    						 int recovery,
    						 void * data)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadMemory. parse an XML in-memory block and use the given SAX function block to handle the parsing callback. If sax is NULL, fallback to the default DOM tree building routines. User data (void *) is stored within the parser context in the context's _private member, so it is available nearly everywhere in libxml

`sax`: | the SAX handler block
`buffer`: | an pointer to a char array
`size`: | the size of the array
`recovery`: | work in recovery mode, i.e. tries to read no Well Formed documents
`data`: | the userdata
`Returns`: | the resulting document tree

### xmlSAXUserParseFile ()

    int	xmlSAXUserParseFile		(xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 const char * filename)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadFile. parse an XML file and call the given SAX handler routines. Automatic support for ZLIB/Compress compressed document is provided

`sax`: | a SAX handler
`user_data`: | The user data returned on SAX callbacks
`filename`: | a file name
`Returns`: | 0 in case of success or a error number otherwise

### xmlSAXUserParseMemory ()

    int	xmlSAXUserParseMemory		(xmlSAXHandlerPtr sax,
    					 void * user_data,
    					 const char * buffer,
    					 int size)

DEPRECATED: Use xmlNewSAXParserCtxt and xmlCtxtReadMemory. parse an XML in-memory buffer and call the given SAX handler routines.

`sax`: | a SAX handler
`user_data`: | The user data returned on SAX callbacks
`buffer`: | an in-memory XML document input
`size`: | the length of the XML document in bytes
`Returns`: | 0 in case of success or a error number otherwise

### xmlSetExternalEntityLoader ()

    void	xmlSetExternalEntityLoader	(xmlExternalEntityLoader f)

Changes the defaultexternal entity resolver function for the application

`f`: | the new entity resolver function

### xmlSetFeature ()

    int	xmlSetFeature			(xmlParserCtxtPtr ctxt,
    					 const char * name,
    					 void * value)

Change the current value of one feature of this parser instance

`ctxt`: | an XML/HTML parser context
`name`: | the feature name
`value`: | pointer to the location of the new value
`Returns`: | -1 in case or error, 0 otherwise

### xmlSetupParserForBuffer ()

    void	xmlSetupParserForBuffer		(xmlParserCtxtPtr ctxt,
    					 const xmlChar * buffer,
    					 const char * filename)

DEPRECATED: Don't use. Setup the parser context to parse a new buffer; Clears any prior contents from the parser context. The buffer parameter must not be NULL, but the filename parameter can be

`ctxt`: | an XML parser context
`buffer`: | a xmlChar * buffer
`filename`: | a file name

### xmlStopParser ()

    void	xmlStopParser			(xmlParserCtxtPtr ctxt)

Blocks further parser processing

`ctxt`: | an XML parser context

### xmlSubstituteEntitiesDefault ()

    int	xmlSubstituteEntitiesDefault	(int val)

DEPRECATED: Use the modern options API with XML_PARSE_NOENT. Set and return the previous value for default entity support. Initially the parser always keep entity references instead of substituting entity values in the output. This function has to be used to change the default parser behavior SAX::substituteEntities() has to be used for changing that on a file by file basis.

`val`: | int 0 or 1
`Returns`: | the last value for 0 for no substitution, 1 for substitution.

### xmlThrDefDoValidityCheckingDefaultValue ()

    int	xmlThrDefDoValidityCheckingDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefGetWarningsDefaultValue ()

    int	xmlThrDefGetWarningsDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefKeepBlanksDefaultValue ()

    int	xmlThrDefKeepBlanksDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefLineNumbersDefaultValue ()

    int	xmlThrDefLineNumbersDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefLoadExtDtdDefaultValue ()

    int	xmlThrDefLoadExtDtdDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefParserDebugEntities ()

    int	xmlThrDefParserDebugEntities	(int v)

`v`: |
`Returns`: |

### xmlThrDefPedanticParserDefaultValue ()

    int	xmlThrDefPedanticParserDefaultValue	(int v)

`v`: |
`Returns`: |

### xmlThrDefSubstituteEntitiesDefaultValue ()

    int	xmlThrDefSubstituteEntitiesDefaultValue	(int v)

`v`: |
`Returns`: |