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Filename : xmlparser.pxd
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from libc.string cimport const_char

from lxml.includes.tree cimport (
    xmlDoc, xmlNode, xmlDict, xmlDtd, xmlChar, const_xmlChar)
from lxml.includes.tree cimport xmlInputReadCallback, xmlInputCloseCallback
from lxml.includes.xmlerror cimport xmlError, xmlStructuredErrorFunc


cdef extern from "libxml/parser.h":
    ctypedef 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)

    ctypedef void (*endElementNsSAX2Func)(void* ctx,
                                          const_xmlChar* localname,
                                          const_xmlChar* prefix,
                                          const_xmlChar* URI)

    ctypedef void (*startElementSAXFunc)(void* ctx, const_xmlChar* name, const_xmlChar** atts)

    ctypedef void (*endElementSAXFunc)(void* ctx, const_xmlChar* name)

    ctypedef void (*charactersSAXFunc)(void* ctx, const_xmlChar* ch, int len)

    ctypedef void (*cdataBlockSAXFunc)(void* ctx, const_xmlChar* value, int len)

    ctypedef void (*commentSAXFunc)(void* ctx, const_xmlChar* value)

    ctypedef void (*processingInstructionSAXFunc)(void* ctx, 
                                                  const_xmlChar* target,
                                                  const_xmlChar* data)

    ctypedef void (*internalSubsetSAXFunc)(void* ctx, 
                                            const_xmlChar* name,
                                            const_xmlChar* externalID,
                                            const_xmlChar* systemID)

    ctypedef void (*endDocumentSAXFunc)(void* ctx)

    ctypedef void (*startDocumentSAXFunc)(void* ctx)

    ctypedef void (*referenceSAXFunc)(void * ctx, const_xmlChar* name)

    cdef int XML_SAX2_MAGIC

cdef extern from "libxml/tree.h":
    ctypedef struct xmlParserInput:
        int line
        int length
        const_xmlChar* base
        const_xmlChar* cur
        const_xmlChar* end
        const_char *filename

    ctypedef struct xmlParserInputBuffer:
        void* context
        xmlInputReadCallback  readcallback
        xmlInputCloseCallback closecallback

    ctypedef struct xmlSAXHandlerV1:
        # same as xmlSAXHandler, but without namespaces
        pass

    ctypedef struct xmlSAXHandler:
        internalSubsetSAXFunc           internalSubset
        startElementNsSAX2Func          startElementNs
        endElementNsSAX2Func            endElementNs
        startElementSAXFunc             startElement
        endElementSAXFunc               endElement
        charactersSAXFunc               characters
        cdataBlockSAXFunc               cdataBlock
        referenceSAXFunc                reference
        commentSAXFunc                  comment
        processingInstructionSAXFunc	processingInstruction
        startDocumentSAXFunc            startDocument
        endDocumentSAXFunc              endDocument
        int                             initialized
        xmlStructuredErrorFunc          serror
        void*                           _private


cdef extern from "libxml/SAX2.h" nogil:
    cdef void xmlSAX2StartDocument(void* ctxt)


cdef extern from "libxml/xmlIO.h" nogil:
    cdef xmlParserInputBuffer* xmlAllocParserInputBuffer(int enc)


cdef extern from "libxml/parser.h":

    cdef xmlDict* xmlDictCreate() nogil
    cdef xmlDict* xmlDictCreateSub(xmlDict* subdict) nogil
    cdef void xmlDictFree(xmlDict* sub) nogil
    cdef int xmlDictReference(xmlDict* dict) nogil
    
    cdef int XML_COMPLETE_ATTRS  # SAX option for adding DTD default attributes
    cdef int XML_SKIP_IDS        # SAX option for not building an XML ID dict

    ctypedef 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


    ctypedef struct xmlParserCtxt:
        xmlDoc* myDoc
        xmlDict* dict
        int dictNames
        void* _private
        bint wellFormed
        bint recovery
        int options
        bint disableSAX
        int errNo
        xmlParserInputState instate
        bint replaceEntities
        int loadsubset  # != 0 if enabled, int value == why
        bint validate
        xmlError lastError
        xmlNode* node
        xmlSAXHandler* sax
        void* userData
        int* spaceTab
        int spaceMax
        int nsNr
        bint html
        bint progressive
        int inSubset
        int charset
        xmlParserInput* input

    ctypedef 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
        # libxml2 2.6.21+ only:
        XML_PARSE_COMPACT = 65536 # compact small text nodes
        # libxml2 2.7.0+ only:
        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
        # libxml2 2.7.3+ only:
        XML_PARSE_OLDSAX = 1048576 # parse using SAX2 interface before 2.7.0
        # libxml2 2.8.0+ only:
        XML_PARSE_IGNORE_ENC = 2097152 # ignore internal document encoding hint
        # libxml2 2.9.0+ only:
        XML_PARSE_BIG_LINES = 4194304 # Store big lines numbers in text PSVI field

    cdef void xmlInitParser() nogil
    cdef void xmlCleanupParser() nogil

    cdef int xmlLineNumbersDefault(int onoff) nogil
    cdef xmlParserCtxt* xmlNewParserCtxt() nogil
    cdef xmlParserInput* xmlNewIOInputStream(xmlParserCtxt* ctxt,
                                             xmlParserInputBuffer* input,
                                             int enc) nogil
    cdef int xmlCtxtUseOptions(xmlParserCtxt* ctxt, int options) nogil
    cdef void xmlFreeParserCtxt(xmlParserCtxt* ctxt) nogil
    cdef void xmlCtxtReset(xmlParserCtxt* ctxt) nogil
    cdef void xmlClearParserCtxt(xmlParserCtxt* ctxt) nogil
    cdef int xmlParseChunk(xmlParserCtxt* ctxt,
                           char* chunk, int size, int terminate) nogil
    cdef xmlDoc* xmlCtxtReadDoc(xmlParserCtxt* ctxt,
                                char* cur, char* URL, char* encoding,
                                int options) nogil
    cdef xmlDoc* xmlCtxtReadFile(xmlParserCtxt* ctxt,
                                 char* filename, char* encoding,
                                 int options) nogil
    cdef xmlDoc* xmlCtxtReadIO(xmlParserCtxt* ctxt, 
                               xmlInputReadCallback ioread, 
                               xmlInputCloseCallback ioclose, 
                               void* ioctx,
                               char* URL, char* encoding,
                               int options) nogil
    cdef xmlDoc* xmlCtxtReadMemory(xmlParserCtxt* ctxt,
                                   char* buffer, int size,
                                   char* filename, const_char* encoding,
                                   int options) nogil

# iterparse:

    cdef xmlParserCtxt* xmlCreatePushParserCtxt(xmlSAXHandler* sax,
                                                void* user_data,
                                                char* chunk,
                                                int size,
                                                char* filename) nogil

    cdef int xmlCtxtResetPush(xmlParserCtxt* ctxt,
                              char* chunk,
                              int size,
                              char* filename,
                              char* encoding) nogil

# entity loaders:

    ctypedef xmlParserInput* (*xmlExternalEntityLoader)(
        const_char * URL, const_char * ID, xmlParserCtxt* context) nogil
    cdef xmlExternalEntityLoader xmlGetExternalEntityLoader() nogil
    cdef void xmlSetExternalEntityLoader(xmlExternalEntityLoader f) nogil

# DTDs:

    cdef xmlDtd* xmlParseDTD(const_xmlChar* ExternalID, const_xmlChar* SystemID) nogil
    cdef xmlDtd* xmlIOParseDTD(xmlSAXHandler* sax,
                               xmlParserInputBuffer* input,
                               int enc) nogil

cdef extern from "libxml/parserInternals.h":
    cdef xmlParserInput* xmlNewInputStream(xmlParserCtxt* ctxt)
    cdef xmlParserInput* xmlNewStringInputStream(xmlParserCtxt* ctxt, 
                                                 char* buffer) nogil
    cdef xmlParserInput* xmlNewInputFromFile(xmlParserCtxt* ctxt, 
                                             char* filename) nogil
    cdef void xmlFreeInputStream(xmlParserInput* input) nogil
    cdef int xmlSwitchEncoding(xmlParserCtxt* ctxt, int enc) nogil