SAX2.c 75.8 KB
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/*
 * SAX2.c : Default SAX2 handler to build a tree.
 *
 * See Copyright for the status of this software.
 *
 * Daniel Veillard <daniel@veillard.com>
 */


#define IN_LIBXML
#include "libxml.h"
#include <stdlib.h>
#include <string.h>
#include <libxml/xmlmemory.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/valid.h>
#include <libxml/entities.h>
#include <libxml/xmlerror.h>
#include <libxml/debugXML.h>
#include <libxml/xmlIO.h>
#include <libxml/SAX.h>
#include <libxml/uri.h>
#include <libxml/valid.h>
#include <libxml/HTMLtree.h>
#include <libxml/globals.h>

/* #define DEBUG_SAX2 */
/* #define DEBUG_SAX2_TREE */

/**
 * TODO:
 *
 * macro to flag unimplemented blocks
 * XML_CATALOG_PREFER user env to select between system/public prefered
 * option. C.f. Richard Tobin <richard@cogsci.ed.ac.uk>
 *> Just FYI, I am using an environment variable XML_CATALOG_PREFER with
 *> values "system" and "public".  I have made the default be "system" to
 *> match yours.
 */
#define TODO 								\
    xmlGenericError(xmlGenericErrorContext,				\
	    "Unimplemented block at %s:%d\n",				\
            __FILE__, __LINE__);

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/*
 * xmlSAX2ErrMemory:
 * @ctxt:  an XML validation parser context
 * @msg:   a string to accompany the error message
 */
static void
xmlSAX2ErrMemory(xmlParserCtxtPtr ctxt, const char *msg) {
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    if (ctxt != NULL) {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, "%s: out of memory\n", msg);
	ctxt->errNo = XML_ERR_NO_MEMORY;
	ctxt->instate = XML_PARSER_EOF;
	ctxt->disableSAX = 1;
    }
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}

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/**
 * xmlValidError:
 * @ctxt:  an XML validation parser context
 * @error:  the error number
 * @msg:  the error message
 * @str1:  extra data
 * @str2:  extra data
 *
 * Handle a validation error
 */
static void
xmlErrValid(xmlParserCtxtPtr ctxt, xmlParserErrors error,
            const char *msg, const char *str1, const char *str2)
{
    xmlStructuredErrorFunc schannel = NULL;

    if ((ctxt != NULL) && (ctxt->disableSAX != 0) &&
        (ctxt->instate == XML_PARSER_EOF))
	return;
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    if (ctxt != NULL) {
	ctxt->errNo = error;
	if ((ctxt->sax != NULL) && (ctxt->sax->initialized == XML_SAX2_MAGIC))
	    schannel = ctxt->sax->serror;
    }
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    __xmlRaiseError(schannel,
                    ctxt->vctxt.error, ctxt->vctxt.userData,
                    ctxt, NULL, XML_FROM_DTD, error,
                    XML_ERR_ERROR, NULL, 0, (const char *) str1,
		    (const char *) str2, NULL, 0, 0,
		    msg, (const char *) str1, (const char *) str2);
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    if (ctxt != NULL)
	ctxt->valid = 0;
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}

/**
 * xmlSAX2GetPublicId:
 * @ctx: the user data (XML parser context)
 *
 * Provides the public ID e.g. "-//SGMLSOURCE//DTD DEMO//EN"
 *
 * Returns a xmlChar *
 */
const xmlChar *
xmlSAX2GetPublicId(void *ctx ATTRIBUTE_UNUSED)
{
    /* xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; */
    return(NULL);
}

/**
 * xmlSAX2GetSystemId:
 * @ctx: the user data (XML parser context)
 *
 * Provides the system ID, basically URL or filename e.g.
 * http://www.sgmlsource.com/dtds/memo.dtd
 *
 * Returns a xmlChar *
 */
const xmlChar *
xmlSAX2GetSystemId(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctx == NULL) || (ctxt->input == NULL)) return(0);
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    return((const xmlChar *) ctxt->input->filename); 
}

/**
 * xmlSAX2GetLineNumber:
 * @ctx: the user data (XML parser context)
 *
 * Provide the line number of the current parsing point.
 *
 * Returns an int
 */
int
xmlSAX2GetLineNumber(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctx == NULL) || (ctxt->input == NULL)) return(0);
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    return(ctxt->input->line);
}

/**
 * xmlSAX2GetColumnNumber:
 * @ctx: the user data (XML parser context)
 *
 * Provide the column number of the current parsing point.
 *
 * Returns an int
 */
int
xmlSAX2GetColumnNumber(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctx == NULL) || (ctxt->input == NULL)) return(0);
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    return(ctxt->input->col);
}

/**
 * xmlSAX2IsStandalone:
 * @ctx: the user data (XML parser context)
 *
 * Is this document tagged standalone ?
 *
 * Returns 1 if true
 */
int
xmlSAX2IsStandalone(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctx == NULL) || (ctxt->myDoc == NULL)) return(0);
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    return(ctxt->myDoc->standalone == 1);
}

/**
 * xmlSAX2HasInternalSubset:
 * @ctx: the user data (XML parser context)
 *
 * Does this document has an internal subset
 *
 * Returns 1 if true
 */
int
xmlSAX2HasInternalSubset(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctxt == NULL) || (ctxt->myDoc == NULL)) return(0);
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    return(ctxt->myDoc->intSubset != NULL);
}

/**
 * xmlSAX2HasExternalSubset:
 * @ctx: the user data (XML parser context)
 *
 * Does this document has an external subset
 *
 * Returns 1 if true
 */
int
xmlSAX2HasExternalSubset(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if ((ctxt == NULL) || (ctxt->myDoc == NULL)) return(0);
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    return(ctxt->myDoc->extSubset != NULL);
}

/**
 * xmlSAX2InternalSubset:
 * @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.
 */
void
xmlSAX2InternalSubset(void *ctx, const xmlChar *name,
	       const xmlChar *ExternalID, const xmlChar *SystemID)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlDtdPtr dtd;
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    if (ctx == NULL) return;
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2InternalSubset(%s, %s, %s)\n",
            name, ExternalID, SystemID);
#endif

    if (ctxt->myDoc == NULL)
	return;
    dtd = xmlGetIntSubset(ctxt->myDoc);
    if (dtd != NULL) {
	if (ctxt->html)
	    return;
	xmlUnlinkNode((xmlNodePtr) dtd);
	xmlFreeDtd(dtd);
	ctxt->myDoc->intSubset = NULL;
    }
    ctxt->myDoc->intSubset = 
	xmlCreateIntSubset(ctxt->myDoc, name, ExternalID, SystemID);
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    if (ctxt->myDoc->intSubset == NULL)
        xmlSAX2ErrMemory(ctxt, "xmlSAX2InternalSubset");
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}

/**
 * xmlSAX2ExternalSubset:
 * @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.
 */
void
xmlSAX2ExternalSubset(void *ctx, const xmlChar *name,
	       const xmlChar *ExternalID, const xmlChar *SystemID)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
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    if (ctx == NULL) return;
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2ExternalSubset(%s, %s, %s)\n",
            name, ExternalID, SystemID);
#endif
    if (((ExternalID != NULL) || (SystemID != NULL)) &&
        (((ctxt->validate) || (ctxt->loadsubset != 0)) &&
	 (ctxt->wellFormed && ctxt->myDoc))) {
	/*
	 * Try to fetch and parse the external subset.
	 */
	xmlParserInputPtr oldinput;
	int oldinputNr;
	int oldinputMax;
	xmlParserInputPtr *oldinputTab;
	xmlParserInputPtr input = NULL;
	xmlCharEncoding enc;
	int oldcharset;

	/*
	 * Ask the Entity resolver to load the damn thing
	 */
	if ((ctxt->sax != NULL) && (ctxt->sax->resolveEntity != NULL))
	    input = ctxt->sax->resolveEntity(ctxt->userData, ExternalID,
	                                        SystemID);
	if (input == NULL) {
	    return;
	}

	xmlNewDtd(ctxt->myDoc, name, ExternalID, SystemID);

	/*
	 * make sure we won't destroy the main document context
	 */
	oldinput = ctxt->input;
	oldinputNr = ctxt->inputNr;
	oldinputMax = ctxt->inputMax;
	oldinputTab = ctxt->inputTab;
	oldcharset = ctxt->charset;

	ctxt->inputTab = (xmlParserInputPtr *)
	                 xmlMalloc(5 * sizeof(xmlParserInputPtr));
	if (ctxt->inputTab == NULL) {
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	    xmlSAX2ErrMemory(ctxt, "xmlSAX2ExternalSubset");
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	    ctxt->input = oldinput;
	    ctxt->inputNr = oldinputNr;
	    ctxt->inputMax = oldinputMax;
	    ctxt->inputTab = oldinputTab;
	    ctxt->charset = oldcharset;
	    return;
	}
	ctxt->inputNr = 0;
	ctxt->inputMax = 5;
	ctxt->input = NULL;
	xmlPushInput(ctxt, input);

	/*
	 * On the fly encoding conversion if needed
	 */
	if (ctxt->input->length >= 4) {
	    enc = xmlDetectCharEncoding(ctxt->input->cur, 4);
	    xmlSwitchEncoding(ctxt, enc);
	}

	if (input->filename == NULL)
	    input->filename = (char *) xmlCanonicPath(SystemID);
	input->line = 1;
	input->col = 1;
	input->base = ctxt->input->cur;
	input->cur = ctxt->input->cur;
	input->free = NULL;

	/*
	 * let's parse that entity knowing it's an external subset.
	 */
	xmlParseExternalSubset(ctxt, ExternalID, SystemID);

        /*
	 * Free up the external entities
	 */

	while (ctxt->inputNr > 1)
	    xmlPopInput(ctxt);
	xmlFreeInputStream(ctxt->input);
        xmlFree(ctxt->inputTab);

	/*
	 * Restore the parsing context of the main entity
	 */
	ctxt->input = oldinput;
	ctxt->inputNr = oldinputNr;
	ctxt->inputMax = oldinputMax;
	ctxt->inputTab = oldinputTab;
	ctxt->charset = oldcharset;
	/* ctxt->wellFormed = oldwellFormed; */
    }
}

/**
 * xmlSAX2ResolveEntity:
 * @ctx: the user data (XML parser context)
 * @publicId: The public ID of the entity
 * @systemId: The system ID of the entity
 *
 * The entity loader, to control the loading of external entities,
 * the application can either:
 *    - override this xmlSAX2ResolveEntity() 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.
 */
xmlParserInputPtr
xmlSAX2ResolveEntity(void *ctx, const xmlChar *publicId, const xmlChar *systemId)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlParserInputPtr ret;
    xmlChar *URI;
    const char *base = NULL;

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    if (ctx == NULL) return(NULL);
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    if (ctxt->input != NULL)
	base = ctxt->input->filename;
    if (base == NULL)
	base = ctxt->directory;

    URI = xmlBuildURI(systemId, (const xmlChar *) base);

#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2ResolveEntity(%s, %s)\n", publicId, systemId);
#endif

    ret = xmlLoadExternalEntity((const char *) URI,
				(const char *) publicId, ctxt);
    if (URI != NULL)
	xmlFree(URI);
    return(ret);
}

/**
 * xmlSAX2GetEntity:
 * @ctx: the user data (XML parser context)
 * @name: The entity name
 *
 * Get an entity by name
 *
 * Returns the xmlEntityPtr if found.
 */
xmlEntityPtr
xmlSAX2GetEntity(void *ctx, const xmlChar *name)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlEntityPtr ret = NULL;

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    if (ctx == NULL) return(NULL);
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2GetEntity(%s)\n", name);
#endif

    if (ctxt->inSubset == 0) {
	ret = xmlGetPredefinedEntity(name);
	if (ret != NULL)
	    return(ret);
    }
    if ((ctxt->myDoc != NULL) && (ctxt->myDoc->standalone == 1)) {
	if (ctxt->inSubset == 2) {
	    ctxt->myDoc->standalone = 0;
	    ret = xmlGetDocEntity(ctxt->myDoc, name);
	    ctxt->myDoc->standalone = 1;
	} else {
	    ret = xmlGetDocEntity(ctxt->myDoc, name);
	    if (ret == NULL) {
		ctxt->myDoc->standalone = 0;
		ret = xmlGetDocEntity(ctxt->myDoc, name);
		if (ret != NULL) {
		    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
			ctxt->sax->error(ctxt->userData, 
		 "Entity(%s) document marked standalone but requires external subset\n",
					 name);
		    ctxt->valid = 0;
		    ctxt->wellFormed = 0;
		}
		ctxt->myDoc->standalone = 1;
	    }
	}
    } else {
	ret = xmlGetDocEntity(ctxt->myDoc, name);
    }
    if ((ret != NULL) &&
	((ctxt->validate) || (ctxt->replaceEntities)) &&
	(ret->children == NULL) &&
	(ret->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)) {
	int val;

	/*
	 * for validation purposes we really need to fetch and
	 * parse the external entity
	 */
	xmlNodePtr children;

        val = xmlParseCtxtExternalEntity(ctxt, ret->URI,
		                         ret->ExternalID, &children);
	if (val == 0) {
	    xmlAddChildList((xmlNodePtr) ret, children);
	} else {
	    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	        ctxt->sax->error(ctxt->userData, 
		 "Failure to process entity %s\n", name);
	    ctxt->wellFormed = 0;
	    ctxt->valid = 0;
	    ctxt->validate = 0;
	    return(NULL);
	}
	ret->owner = 1;
    }
    return(ret);
}

/**
 * xmlSAX2GetParameterEntity:
 * @ctx: the user data (XML parser context)
 * @name: The entity name
 *
 * Get a parameter entity by name
 *
 * Returns the xmlEntityPtr if found.
 */
xmlEntityPtr
xmlSAX2GetParameterEntity(void *ctx, const xmlChar *name)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlEntityPtr ret;

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    if (ctx == NULL) return(NULL);
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2GetParameterEntity(%s)\n", name);
#endif

    ret = xmlGetParameterEntity(ctxt->myDoc, name);
    return(ret);
}


/**
 * xmlSAX2EntityDecl:
 * @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
 */
void
xmlSAX2EntityDecl(void *ctx, const xmlChar *name, int type,
          const xmlChar *publicId, const xmlChar *systemId, xmlChar *content)
{
    xmlEntityPtr ent;
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;

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    if (ctx == NULL) return;
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2EntityDecl(%s, %d, %s, %s, %s)\n",
            name, type, publicId, systemId, content);
#endif
    if (ctxt->inSubset == 1) {
	ent = xmlAddDocEntity(ctxt->myDoc, name, type, publicId,
		              systemId, content);
	if ((ent == NULL) && (ctxt->pedantic) &&
	    (ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
	    ctxt->sax->warning(ctxt->userData, 
	     "Entity(%s) already defined in the internal subset\n", name);
	if ((ent != NULL) && (ent->URI == NULL) && (systemId != NULL)) {
	    xmlChar *URI;
	    const char *base = NULL;

	    if (ctxt->input != NULL)
		base = ctxt->input->filename;
	    if (base == NULL)
		base = ctxt->directory;
	
	    URI = xmlBuildURI(systemId, (const xmlChar *) base);
	    ent->URI = URI;
	}
    } else if (ctxt->inSubset == 2) {
	ent = xmlAddDtdEntity(ctxt->myDoc, name, type, publicId,
		              systemId, content);
	if ((ent == NULL) && (ctxt->pedantic) &&
	    (ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
	    ctxt->sax->warning(ctxt->userData, 
	     "Entity(%s) already defined in the external subset\n", name);
	if ((ent != NULL) && (ent->URI == NULL) && (systemId != NULL)) {
	    xmlChar *URI;
	    const char *base = NULL;

	    if (ctxt->input != NULL)
		base = ctxt->input->filename;
	    if (base == NULL)
		base = ctxt->directory;
	
	    URI = xmlBuildURI(systemId, (const xmlChar *) base);
	    ent->URI = URI;
	}
    } else {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, 
	     "SAX.xmlSAX2EntityDecl(%s) called while not in subset\n", name);
    }
}

/**
 * xmlSAX2AttributeDecl:
 * @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
 */
void
xmlSAX2AttributeDecl(void *ctx, const xmlChar *elem, const xmlChar *fullname,
              int type, int def, const xmlChar *defaultValue,
	      xmlEnumerationPtr tree)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlAttributePtr attr;
    xmlChar *name = NULL, *prefix = NULL;

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    if (ctx == NULL) return;
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2AttributeDecl(%s, %s, %d, %d, %s, ...)\n",
            elem, fullname, type, def, defaultValue);
#endif
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    if ((xmlStrEqual(fullname, BAD_CAST "xml:id")) &&
        (type != XML_ATTRIBUTE_ID)) {
	/*
	 * Raise the error but keep the validity flag
	 */
	int tmp = ctxt->valid;
	xmlErrValid(ctxt, XML_DTD_XMLID_TYPE,
	      "xml:id : attribute type should be ID\n", NULL, NULL);
	ctxt->valid = tmp;
    }
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    /* TODO: optimize name/prefix allocation */
    name = xmlSplitQName(ctxt, fullname, &prefix);
    ctxt->vctxt.valid = 1;
    if (ctxt->inSubset == 1)
	attr = xmlAddAttributeDecl(&ctxt->vctxt, ctxt->myDoc->intSubset, elem,
	       name, prefix, (xmlAttributeType) type,
	       (xmlAttributeDefault) def, defaultValue, tree);
    else if (ctxt->inSubset == 2)
	attr = xmlAddAttributeDecl(&ctxt->vctxt, ctxt->myDoc->extSubset, elem,
	   name, prefix, (xmlAttributeType) type, 
	   (xmlAttributeDefault) def, defaultValue, tree);
    else {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, 
	     "SAX.xmlSAX2AttributeDecl(%s) called while not in subset\n", name);
	xmlFreeEnumeration(tree);
	return;
    }
#ifdef LIBXML_VALID_ENABLED
    if (ctxt->vctxt.valid == 0)
	ctxt->valid = 0;
    if ((attr != NULL) && (ctxt->validate) && (ctxt->wellFormed) &&
        (ctxt->myDoc != NULL) && (ctxt->myDoc->intSubset != NULL))
	ctxt->valid &= xmlValidateAttributeDecl(&ctxt->vctxt, ctxt->myDoc,
	                                        attr);
#endif /* LIBXML_VALID_ENABLED */
    if (prefix != NULL)
	xmlFree(prefix);
    if (name != NULL)
	xmlFree(name);
}

/**
 * xmlSAX2ElementDecl:
 * @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
 */
void
xmlSAX2ElementDecl(void *ctx, const xmlChar * name, int type,
            xmlElementContentPtr content)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlElementPtr elem = NULL;

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    if (ctx == NULL) return;
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#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
                    "SAX.xmlSAX2ElementDecl(%s, %d, ...)\n", name, type);
#endif

    if (ctxt->inSubset == 1)
        elem = xmlAddElementDecl(&ctxt->vctxt, ctxt->myDoc->intSubset,
                                 name, (xmlElementTypeVal) type, content);
    else if (ctxt->inSubset == 2)
        elem = xmlAddElementDecl(&ctxt->vctxt, ctxt->myDoc->extSubset,
                                 name, (xmlElementTypeVal) type, content);
    else {
        if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
            ctxt->sax->error(ctxt->userData,
                             "SAX.xmlSAX2ElementDecl(%s) called while not in subset\n",
                             name);
        return;
    }
#ifdef LIBXML_VALID_ENABLED
    if (elem == NULL)
        ctxt->valid = 0;
    if (ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset)
        ctxt->valid &=
            xmlValidateElementDecl(&ctxt->vctxt, ctxt->myDoc, elem);
#endif /* LIBXML_VALID_ENABLED */
}

/**
 * xmlSAX2NotationDecl:
 * @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.
 */
void
xmlSAX2NotationDecl(void *ctx, const xmlChar *name,
	     const xmlChar *publicId, const xmlChar *systemId)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNotationPtr nota = NULL;

707
    if (ctx == NULL) return;
708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2NotationDecl(%s, %s, %s)\n", name, publicId, systemId);
#endif

    if ((publicId == NULL) && (systemId == NULL)) {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, 
	     "SAX.xmlSAX2NotationDecl(%s) externalID or PublicID missing\n", name);
	ctxt->valid = 0;
	ctxt->wellFormed = 0;
	return;
    } else if (ctxt->inSubset == 1)
	nota = xmlAddNotationDecl(&ctxt->vctxt, ctxt->myDoc->intSubset, name,
                              publicId, systemId);
    else if (ctxt->inSubset == 2)
	nota = xmlAddNotationDecl(&ctxt->vctxt, ctxt->myDoc->extSubset, name,
                              publicId, systemId);
    else {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, 
	     "SAX.xmlSAX2NotationDecl(%s) called while not in subset\n", name);
	return;
    }
#ifdef LIBXML_VALID_ENABLED
    if (nota == NULL) ctxt->valid = 0;
    if (ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset)
	ctxt->valid &= xmlValidateNotationDecl(&ctxt->vctxt, ctxt->myDoc,
	                                       nota);
#endif /* LIBXML_VALID_ENABLED */
}

/**
 * xmlSAX2UnparsedEntityDecl:
 * @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
 */
void
xmlSAX2UnparsedEntityDecl(void *ctx, const xmlChar *name,
		   const xmlChar *publicId, const xmlChar *systemId,
		   const xmlChar *notationName)
{
    xmlEntityPtr ent;
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
758
    if (ctx == NULL) return;
759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2UnparsedEntityDecl(%s, %s, %s, %s)\n",
            name, publicId, systemId, notationName);
#endif
    if (ctxt->inSubset == 1) {
	ent = xmlAddDocEntity(ctxt->myDoc, name,
			XML_EXTERNAL_GENERAL_UNPARSED_ENTITY,
			publicId, systemId, notationName);
	if ((ent == NULL) && (ctxt->pedantic) &&
	    (ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
	    ctxt->sax->warning(ctxt->userData, 
	     "Entity(%s) already defined in the internal subset\n", name);
	if ((ent != NULL) && (ent->URI == NULL) && (systemId != NULL)) {
	    xmlChar *URI;
	    const char *base = NULL;

	    if (ctxt->input != NULL)
		base = ctxt->input->filename;
	    if (base == NULL)
		base = ctxt->directory;
	
	    URI = xmlBuildURI(systemId, (const xmlChar *) base);
	    ent->URI = URI;
	}
    } else if (ctxt->inSubset == 2) {
	ent = xmlAddDtdEntity(ctxt->myDoc, name,
			XML_EXTERNAL_GENERAL_UNPARSED_ENTITY,
			publicId, systemId, notationName);
	if ((ent == NULL) && (ctxt->pedantic) &&
	    (ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
	    ctxt->sax->warning(ctxt->userData, 
	     "Entity(%s) already defined in the external subset\n", name);
	if ((ent != NULL) && (ent->URI == NULL) && (systemId != NULL)) {
	    xmlChar *URI;
	    const char *base = NULL;

	    if (ctxt->input != NULL)
		base = ctxt->input->filename;
	    if (base == NULL)
		base = ctxt->directory;
	
	    URI = xmlBuildURI(systemId, (const xmlChar *) base);
	    ent->URI = URI;
	}
    } else {
	if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
	    ctxt->sax->error(ctxt->userData, 
	     "SAX.xmlSAX2UnparsedEntityDecl(%s) called while not in subset\n", name);
    }
}

/**
 * xmlSAX2SetDocumentLocator:
 * @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.
 */
void
xmlSAX2SetDocumentLocator(void *ctx ATTRIBUTE_UNUSED, xmlSAXLocatorPtr loc ATTRIBUTE_UNUSED)
{
    /* xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; */
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2SetDocumentLocator()\n");
#endif
}

/**
 * xmlSAX2StartDocument:
 * @ctx: the user data (XML parser context)
 *
 * called when the document start being processed.
 */
void
xmlSAX2StartDocument(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlDocPtr doc;

841 842
    if (ctx == NULL) return;

843 844 845 846 847 848 849 850 851
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2StartDocument()\n");
#endif
    if (ctxt->html) {
#ifdef LIBXML_HTML_ENABLED
	if (ctxt->myDoc == NULL)
	    ctxt->myDoc = htmlNewDocNoDtD(NULL, NULL);
	if (ctxt->myDoc == NULL) {
852
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartDocument");
853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871
	    return;
	}
#else
        xmlGenericError(xmlGenericErrorContext,
		"libxml2 built without HTML support\n");
	ctxt->errNo = XML_ERR_INTERNAL_ERROR;
	ctxt->instate = XML_PARSER_EOF;
	ctxt->disableSAX = 1;
	return;
#endif
    } else {
	doc = ctxt->myDoc = xmlNewDoc(ctxt->version);
	if (doc != NULL) {
	    if (ctxt->encoding != NULL)
		doc->encoding = xmlStrdup(ctxt->encoding);
	    else
		doc->encoding = NULL;
	    doc->standalone = ctxt->standalone;
	} else {
872
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartDocument");
873 874 875 876 877 878 879 880 881 882 883
	    return;
	}
	if ((ctxt->dictNames) && (doc != NULL)) {
	    doc->dict = ctxt->dict;
	    xmlDictReference(doc->dict);
	}
    }
    if ((ctxt->myDoc != NULL) && (ctxt->myDoc->URL == NULL) &&
	(ctxt->input != NULL) && (ctxt->input->filename != NULL)) {
	ctxt->myDoc->URL = xmlCanonicPath((const xmlChar *) ctxt->input->filename);
	if (ctxt->myDoc->URL == NULL)
884
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartDocument");
885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901
    }
}

/**
 * xmlSAX2EndDocument:
 * @ctx: the user data (XML parser context)
 *
 * called when the document end has been detected.
 */
void
xmlSAX2EndDocument(void *ctx)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2EndDocument()\n");
#endif
902
    if (ctx == NULL) return;
903 904 905 906 907 908 909 910 911 912 913 914 915 916
#ifdef LIBXML_VALID_ENABLED
    if (ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset)
	ctxt->valid &= xmlValidateDocumentFinal(&ctxt->vctxt, ctxt->myDoc);
#endif /* LIBXML_VALID_ENABLED */

    /*
     * Grab the encoding if it was added on-the-fly
     */
    if ((ctxt->encoding != NULL) && (ctxt->myDoc != NULL) &&
	(ctxt->myDoc->encoding == NULL)) {
	ctxt->myDoc->encoding = ctxt->encoding;
	ctxt->encoding = NULL;
    }
917 918 919
    if ((ctxt->inputTab != NULL) &&
        (ctxt->inputNr > 0) && (ctxt->inputTab[0] != NULL) &&
        (ctxt->inputTab[0]->encoding != NULL) && (ctxt->myDoc != NULL) &&
920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973
	(ctxt->myDoc->encoding == NULL)) {
	ctxt->myDoc->encoding = xmlStrdup(ctxt->inputTab[0]->encoding);
    }
    if ((ctxt->charset != XML_CHAR_ENCODING_NONE) && (ctxt->myDoc != NULL) &&
	(ctxt->myDoc->charset == XML_CHAR_ENCODING_NONE)) {
	ctxt->myDoc->charset = ctxt->charset;
    }
}

#if defined(LIBXML_SAX1_ENABLED) || defined(LIBXML_HTML_ENABLED)
/**
 * xmlSAX2AttributeInternal:
 * @ctx: the user data (XML parser context)
 * @fullname:  The attribute name, including namespace prefix
 * @value:  The attribute value
 * @prefix: the prefix on the element node
 *
 * 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.
 */
static void
xmlSAX2AttributeInternal(void *ctx, const xmlChar *fullname,
             const xmlChar *value, const xmlChar *prefix ATTRIBUTE_UNUSED)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlAttrPtr ret;
    xmlChar *name;
    xmlChar *ns;
    xmlChar *nval;
    xmlNsPtr namespace;

    /*
     * Split the full name into a namespace prefix and the tag name
     */
    name = xmlSplitQName(ctxt, fullname, &ns);
    if ((name != NULL) && (name[0] == 0)) {
        if (xmlStrEqual(ns, BAD_CAST "xmlns")) {
	    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
		ctxt->sax->error(ctxt->userData, 
		     "invalid namespace declaration '%s'\n", fullname);
	} else {
	    if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
		ctxt->sax->warning(ctxt->userData, 
		     "Avoid attribute ending with ':' like '%s'\n", fullname);
	}
	if (ns != NULL)
	    xmlFree(ns);
	ns = NULL;
	xmlFree(name);
	name = xmlStrdup(fullname);
    }
    if (name == NULL) {
974
        xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElement");
975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
	if (ns != NULL)
	    xmlFree(ns);
	return;
    }

#ifdef LIBXML_VALID_ENABLED
    /*
     * Do the last stage of the attribute normalization
     * Needed for HTML too:
     *   http://www.w3.org/TR/html4/types.html#h-6.2
     */
    ctxt->vctxt.valid = 1;
    nval = xmlValidCtxtNormalizeAttributeValue(&ctxt->vctxt,
	                                   ctxt->myDoc, ctxt->node,
					   fullname, value);
    if (ctxt->vctxt.valid != 1) {
	ctxt->valid = 0;
    }
    if (nval != NULL)
	value = nval;
#else
    nval = NULL;
#endif /* LIBXML_VALID_ENABLED */

    /*
     * Check whether it's a namespace definition
     */
    if ((!ctxt->html) && (ns == NULL) &&
        (name[0] == 'x') && (name[1] == 'm') && (name[2] == 'l') &&
        (name[3] == 'n') && (name[4] == 's') && (name[5] == 0)) {
	xmlNsPtr nsret;
	xmlChar *val;

        if (!ctxt->replaceEntities) {
	    ctxt->depth++;
	    val = xmlStringDecodeEntities(ctxt, value, XML_SUBSTITUTE_REF,
		                          0,0,0);
	    ctxt->depth--;
	} else {
	    val = (xmlChar *) value;
	}

	if (val[0] != 0) {
	    xmlURIPtr uri;

	    uri = xmlParseURI((const char *)val);
	    if (uri == NULL) {
		if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
		    ctxt->sax->warning(ctxt->userData, 
			 "xmlns: %s not a valid URI\n", val);
	    } else {
		if (uri->scheme == NULL) {
		    if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
			ctxt->sax->warning(ctxt->userData, 
			     "xmlns: URI %s is not absolute\n", val);
		}
		xmlFreeURI(uri);
	    }
	}

	/* a default namespace definition */
	nsret = xmlNewNs(ctxt->node, val, NULL);

#ifdef LIBXML_VALID_ENABLED
	/*
	 * Validate also for namespace decls, they are attributes from
	 * an XML-1.0 perspective
	 */
        if (nsret != NULL && ctxt->validate && ctxt->wellFormed &&
	    ctxt->myDoc && ctxt->myDoc->intSubset)
	    ctxt->valid &= xmlValidateOneNamespace(&ctxt->vctxt, ctxt->myDoc,
					   ctxt->node, prefix, nsret, val);
#endif /* LIBXML_VALID_ENABLED */
	if (name != NULL) 
	    xmlFree(name);
	if (nval != NULL)
	    xmlFree(nval);
	if (val != value)
	    xmlFree(val);
	return;
    }
    if ((!ctxt->html) &&
	(ns != NULL) && (ns[0] == 'x') && (ns[1] == 'm') && (ns[2] == 'l') &&
        (ns[3] == 'n') && (ns[4] == 's') && (ns[5] == 0)) {
	xmlNsPtr nsret;
	xmlChar *val;

        if (!ctxt->replaceEntities) {
	    ctxt->depth++;
	    val = xmlStringDecodeEntities(ctxt, value, XML_SUBSTITUTE_REF,
		                          0,0,0);
	    ctxt->depth--;
	    if (val == NULL) {
1068
	        xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElement");
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232
	        xmlFree(ns);
		if (name != NULL) 
		    xmlFree(name);
		return;
	    }
	} else {
	    val = (xmlChar *) value;
	}

	if (val[0] == 0) {
	    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
		ctxt->sax->error(ctxt->userData, 
		     "Empty namespace name for prefix %s\n", name);
	}
	if ((ctxt->pedantic != 0) && (val[0] != 0)) {
	    xmlURIPtr uri;

	    uri = xmlParseURI((const char *)val);
	    if (uri == NULL) {
		if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
		    ctxt->sax->warning(ctxt->userData, 
			 "xmlns:%s: %s not a valid URI\n", name, value);
	    } else {
		if (uri->scheme == NULL) {
		    if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
			ctxt->sax->warning(ctxt->userData, 
			   "xmlns:%s: URI %s is not absolute\n", name, value);
		}
		xmlFreeURI(uri);
	    }
	}

	/* a standard namespace definition */
	nsret = xmlNewNs(ctxt->node, val, name);
	xmlFree(ns);
#ifdef LIBXML_VALID_ENABLED
	/*
	 * Validate also for namespace decls, they are attributes from
	 * an XML-1.0 perspective
	 */
        if (nsret != NULL && ctxt->validate && ctxt->wellFormed &&
	    ctxt->myDoc && ctxt->myDoc->intSubset)
	    ctxt->valid &= xmlValidateOneNamespace(&ctxt->vctxt, ctxt->myDoc,
					   ctxt->node, prefix, nsret, value);
#endif /* LIBXML_VALID_ENABLED */
	if (name != NULL) 
	    xmlFree(name);
	if (nval != NULL)
	    xmlFree(nval);
	if (val != value)
	    xmlFree(val);
	return;
    }

    if (ns != NULL) {
	xmlAttrPtr prop;
	namespace = xmlSearchNs(ctxt->myDoc, ctxt->node, ns);
	if (namespace == NULL) {
	    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
		ctxt->sax->error(ctxt->userData, 
		    "Namespace prefix %s of attribute %s is not defined\n",
		             ns, name);
	}

	prop = ctxt->node->properties;
	while (prop != NULL) {
	    if (prop->ns != NULL) {
		if ((xmlStrEqual(name, prop->name)) &&
		    ((namespace == prop->ns) ||
		     (xmlStrEqual(namespace->href, prop->ns->href)))) {
		    ctxt->errNo = XML_ERR_ATTRIBUTE_REDEFINED;
		    if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL))
			ctxt->sax->error(ctxt->userData,
			        "Attribute %s in %s redefined\n",
			                 name, namespace->href);
		    ctxt->wellFormed = 0;
		    if (ctxt->recovery == 0) ctxt->disableSAX = 1;
		    goto error;
		}
	    }
	    prop = prop->next;
	}
    } else {
	namespace = NULL;
    }

    /* !!!!!! <a toto:arg="" xmlns:toto="http://toto.com"> */
    ret = xmlNewNsPropEatName(ctxt->node, namespace, name, NULL);

    if (ret != NULL) {
        if ((ctxt->replaceEntities == 0) && (!ctxt->html)) {
	    xmlNodePtr tmp;

	    ret->children = xmlStringGetNodeList(ctxt->myDoc, value);
	    tmp = ret->children;
	    while (tmp != NULL) {
		tmp->parent = (xmlNodePtr) ret;
		if (tmp->next == NULL)
		    ret->last = tmp;
		tmp = tmp->next;
	    }
	} else if (value != NULL) {
	    ret->children = xmlNewDocText(ctxt->myDoc, value);
	    ret->last = ret->children;
	    if (ret->children != NULL)
		ret->children->parent = (xmlNodePtr) ret;
	}
    }

#ifdef LIBXML_VALID_ENABLED
    if ((!ctxt->html) && ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset) {
	
	/*
	 * If we don't substitute entities, the validation should be
	 * done on a value with replaced entities anyway.
	 */
        if (!ctxt->replaceEntities) {
	    xmlChar *val;

	    ctxt->depth++;
	    val = xmlStringDecodeEntities(ctxt, value, XML_SUBSTITUTE_REF,
		                          0,0,0);
	    ctxt->depth--;
	    
	    if (val == NULL)
		ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
				ctxt->myDoc, ctxt->node, ret, value);
	    else {
		xmlChar *nvalnorm;

		/*
		 * Do the last stage of the attribute normalization
		 * It need to be done twice ... it's an extra burden related
		 * to the ability to keep xmlSAX2References in attributes
		 */
		nvalnorm = xmlValidNormalizeAttributeValue(ctxt->myDoc,
					    ctxt->node, fullname, val);
		if (nvalnorm != NULL) {
		    xmlFree(val);
		    val = nvalnorm;
		}

		ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
			        ctxt->myDoc, ctxt->node, ret, val);
                xmlFree(val);
	    }
	} else {
	    ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt, ctxt->myDoc,
					       ctxt->node, ret, value);
	}
    } else
#endif /* LIBXML_VALID_ENABLED */
           if (((ctxt->loadsubset & XML_SKIP_IDS) == 0) &&
	       (((ctxt->replaceEntities == 0) && (ctxt->external != 2)) ||
	        ((ctxt->replaceEntities != 0) && (ctxt->inSubset == 0)))) {
        /*
	 * when validating, the ID registration is done at the attribute
	 * validation level. Otherwise we have to do specific handling here.
	 */
	if (xmlIsID(ctxt->myDoc, ctxt->node, ret))
	    xmlAddID(&ctxt->vctxt, ctxt->myDoc, value, ret);
	else if (xmlIsRef(ctxt->myDoc, ctxt->node, ret))
	    xmlAddRef(&ctxt->vctxt, ctxt->myDoc, value, ret);
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245
	else if (xmlStrEqual(fullname, BAD_CAST "xml:id")) {
	    /*
	     * Add the xml:id value
	     *
	     * Open issue: normalization of the value.
	     */
	    if (xmlValidateNCName(value, 1) != 0) {
	        xmlErrValid(ctxt, XML_DTD_XMLID_VALUE,
		      "xml:id : attribute value %s is not an NCName\n",
			    (const char *) value, NULL);
	    }
	    xmlAddID(&ctxt->vctxt, ctxt->myDoc, value, ret);
	}
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363
    }

error:
    if (nval != NULL)
	xmlFree(nval);
    if (ns != NULL) 
	xmlFree(ns);
}

/*
 * xmlCheckDefaultedAttributes:
 *
 * Check defaulted attributes from the DTD
 */
static void
xmlCheckDefaultedAttributes(xmlParserCtxtPtr ctxt, const xmlChar *name,
	const xmlChar *prefix, const xmlChar **atts) {
    xmlElementPtr elemDecl;
    const xmlChar *att;
    int internal = 1;
    int i;

    elemDecl = xmlGetDtdQElementDesc(ctxt->myDoc->intSubset, name, prefix);
    if (elemDecl == NULL) {
	elemDecl = xmlGetDtdQElementDesc(ctxt->myDoc->extSubset, name, prefix);
	internal = 0;
    }

process_external_subset:

    if (elemDecl != NULL) {
	xmlAttributePtr attr = elemDecl->attributes;
	/*
	 * Check against defaulted attributes from the external subset
	 * if the document is stamped as standalone
	 */
	if ((ctxt->myDoc->standalone == 1) &&
	    (ctxt->myDoc->extSubset != NULL) &&
	    (ctxt->validate)) {
	    while (attr != NULL) {
		if ((attr->defaultValue != NULL) &&
		    (xmlGetDtdQAttrDesc(ctxt->myDoc->extSubset,
					attr->elem, attr->name,
					attr->prefix) == attr) &&
		    (xmlGetDtdQAttrDesc(ctxt->myDoc->intSubset,
					attr->elem, attr->name,
					attr->prefix) == NULL)) {
		    xmlChar *fulln;

		    if (attr->prefix != NULL) {
			fulln = xmlStrdup(attr->prefix);
			fulln = xmlStrcat(fulln, BAD_CAST ":");
			fulln = xmlStrcat(fulln, attr->name);
		    } else {
			fulln = xmlStrdup(attr->name);
		    }

		    /*
		     * Check that the attribute is not declared in the
		     * serialization
		     */
		    att = NULL;
		    if (atts != NULL) {
			i = 0;
			att = atts[i];
			while (att != NULL) {
			    if (xmlStrEqual(att, fulln))
				break;
			    i += 2;
			    att = atts[i];
			}
		    }
		    if (att == NULL) {
		        xmlErrValid(ctxt, XML_DTD_STANDALONE_DEFAULTED,
      "standalone: attribute %s on %s defaulted from external subset\n",
				    (const char *)fulln,
				    (const char *)attr->elem);
		    }
		}
		attr = attr->nexth;
	    }
	}

	/*
	 * Actually insert defaulted values when needed
	 */
	attr = elemDecl->attributes;
	while (attr != NULL) {
	    /*
	     * Make sure that attributes redefinition occuring in the
	     * internal subset are not overriden by definitions in the
	     * external subset.
	     */
	    if (attr->defaultValue != NULL) {
		/*
		 * the element should be instantiated in the tree if:
		 *  - this is a namespace prefix
		 *  - the user required for completion in the tree
		 *    like XSLT
		 *  - there isn't already an attribute definition 
		 *    in the internal subset overriding it.
		 */
		if (((attr->prefix != NULL) &&
		     (xmlStrEqual(attr->prefix, BAD_CAST "xmlns"))) ||
		    ((attr->prefix == NULL) &&
		     (xmlStrEqual(attr->name, BAD_CAST "xmlns"))) ||
		    (ctxt->loadsubset & XML_COMPLETE_ATTRS)) {
		    xmlAttributePtr tst;

		    tst = xmlGetDtdQAttrDesc(ctxt->myDoc->intSubset,
					     attr->elem, attr->name,
					     attr->prefix);
		    if ((tst == attr) || (tst == NULL)) {
		        xmlChar fn[50];
			xmlChar *fulln;

                        fulln = xmlBuildQName(attr->name, attr->prefix, fn, 50);
			if (fulln == NULL) {
1364
			    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElement");
1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415
			    return;
			}

			/*
			 * Check that the attribute is not declared in the
			 * serialization
			 */
			att = NULL;
			if (atts != NULL) {
			    i = 0;
			    att = atts[i];
			    while (att != NULL) {
				if (xmlStrEqual(att, fulln))
				    break;
				i += 2;
				att = atts[i];
			    }
			}
			if (att == NULL) {
			    xmlSAX2AttributeInternal(ctxt, fulln,
						 attr->defaultValue, prefix);
			}
			if ((fulln != fn) && (fulln != attr->name))
			    xmlFree(fulln);
		    }
		}
	    }
	    attr = attr->nexth;
	}
	if (internal == 1) {
	    elemDecl = xmlGetDtdQElementDesc(ctxt->myDoc->extSubset,
		                             name, prefix);
	    internal = 0;
	    goto process_external_subset;
	}
    }
}

/**
 * xmlSAX2StartElement:
 * @ctx: the user data (XML parser context)
 * @fullname:  The element name, including namespace prefix
 * @atts:  An array of name/value attributes pairs, NULL terminated
 *
 * called when an opening tag has been processed.
 */
void
xmlSAX2StartElement(void *ctx, const xmlChar *fullname, const xmlChar **atts)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret;
1416
    xmlNodePtr parent;
1417 1418 1419 1420 1421 1422 1423
    xmlNsPtr ns;
    xmlChar *name;
    xmlChar *prefix;
    const xmlChar *att;
    const xmlChar *value;
    int i;

1424 1425
    if ((ctx == NULL) || (fullname == NULL) || (ctxt->myDoc == NULL)) return;
    parent = ctxt->node;
1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2StartElement(%s)\n", fullname);
#endif

    /*
     * First check on validity:
     */
    if (ctxt->validate && (ctxt->myDoc->extSubset == NULL) && 
        ((ctxt->myDoc->intSubset == NULL) ||
	 ((ctxt->myDoc->intSubset->notations == NULL) && 
	  (ctxt->myDoc->intSubset->elements == NULL) &&
	  (ctxt->myDoc->intSubset->attributes == NULL) && 
	  (ctxt->myDoc->intSubset->entities == NULL)))) {
	xmlErrValid(ctxt, XML_ERR_NO_DTD,
	  "Validation failed: no DTD found !", NULL, NULL);
	ctxt->validate = 0;
    }
       

    /*
     * Split the full name into a namespace prefix and the tag name
     */
    name = xmlSplitQName(ctxt, fullname, &prefix);


    /*
     * Note : the namespace resolution is deferred until the end of the
     *        attributes parsing, since local namespace can be defined as
     *        an attribute at this level.
     */
    ret = xmlNewDocNodeEatName(ctxt->myDoc, NULL, name, NULL);
    if (ret == NULL) {
        if (prefix != NULL)
	    xmlFree(prefix);
1461
	xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElement");
1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
        return;
    }
    if (ctxt->myDoc->children == NULL) {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext, "Setting %s as root\n", name);
#endif
        xmlAddChild((xmlNodePtr) ctxt->myDoc, (xmlNodePtr) ret);
    } else if (parent == NULL) {
        parent = ctxt->myDoc->children;
    }
    ctxt->nodemem = -1;
    if (ctxt->linenumbers) {
	if (ctxt->input != NULL) {
	    if (ctxt->input->line < 65535)
		ret->line = (short) ctxt->input->line;
	    else
	        ret->line = 65535;
	}
    }

    /*
     * We are parsing a new node.
     */
#ifdef DEBUG_SAX_TREE
    xmlGenericError(xmlGenericErrorContext, "pushing(%s)\n", name);
#endif
    nodePush(ctxt, ret);

    /*
     * Link the child element
     */
    if (parent != NULL) {
        if (parent->type == XML_ELEMENT_NODE) {
#ifdef DEBUG_SAX_TREE
	    xmlGenericError(xmlGenericErrorContext,
		    "adding child %s to %s\n", name, parent->name);
#endif
	    xmlAddChild(parent, ret);
	} else {
#ifdef DEBUG_SAX_TREE
	    xmlGenericError(xmlGenericErrorContext,
		    "adding sibling %s to ", name);
	    xmlDebugDumpOneNode(stderr, parent, 0);
#endif
	    xmlAddSibling(parent, ret);
	}
    }

    /*
     * Insert all the defaulted attributes from the DTD especially namespaces
     */
    if ((!ctxt->html) &&
	((ctxt->myDoc->intSubset != NULL) ||
	 (ctxt->myDoc->extSubset != NULL))) {
	xmlCheckDefaultedAttributes(ctxt, name, prefix, atts);
    }

    /*
     * process all the attributes whose name start with "xmlns"
     */
    if (atts != NULL) {
        i = 0;
	att = atts[i++];
	value = atts[i++];
	if (!ctxt->html) {
	    while ((att != NULL) && (value != NULL)) {
		if ((att[0] == 'x') && (att[1] == 'm') && (att[2] == 'l') &&
		    (att[3] == 'n') && (att[4] == 's'))
		    xmlSAX2AttributeInternal(ctxt, att, value, prefix);

		att = atts[i++];
		value = atts[i++];
	    }
	}
    }

    /*
     * Search the namespace, note that since the attributes have been
     * processed, the local namespaces are available.
     */
    ns = xmlSearchNs(ctxt->myDoc, ret, prefix);
    if ((ns == NULL) && (parent != NULL))
	ns = xmlSearchNs(ctxt->myDoc, parent, prefix);
    if ((prefix != NULL) && (ns == NULL)) {
	ns = xmlNewNs(ret, NULL, prefix);
	if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
	    ctxt->sax->warning(ctxt->userData, 
		 "Namespace prefix %s is not defined\n", prefix);
    }

    /*
     * set the namespace node, making sure that if the default namspace
     * is unbound on a parent we simply kee it NULL
     */
    if ((ns != NULL) && (ns->href != NULL) &&
	((ns->href[0] != 0) || (ns->prefix != NULL)))
	xmlSetNs(ret, ns);

    /*
     * process all the other attributes
     */
    if (atts != NULL) {
        i = 0;
	att = atts[i++];
	value = atts[i++];
	if (ctxt->html) {
	    while (att != NULL) {
		xmlSAX2AttributeInternal(ctxt, att, value, NULL);
		att = atts[i++];
		value = atts[i++];
	    }
	} else {
	    while ((att != NULL) && (value != NULL)) {
		if ((att[0] != 'x') || (att[1] != 'm') || (att[2] != 'l') ||
		    (att[3] != 'n') || (att[4] != 's'))
		    xmlSAX2AttributeInternal(ctxt, att, value, NULL);

		/*
		 * Next ones
		 */
		att = atts[i++];
		value = atts[i++];
	    }
	}
    }

#ifdef LIBXML_VALID_ENABLED
    /*
     * If it's the Document root, finish the DTD validation and
     * check the document root element for validity
     */
1593
    if ((ctxt->validate) && (ctxt->vctxt.finishDtd == XML_CTXT_FINISH_DTD_0)) {
1594 1595 1596 1597 1598 1599 1600 1601
	int chk;

	chk = xmlValidateDtdFinal(&ctxt->vctxt, ctxt->myDoc);
	if (chk <= 0)
	    ctxt->valid = 0;
	if (chk < 0)
	    ctxt->wellFormed = 0;
	ctxt->valid &= xmlValidateRoot(&ctxt->vctxt, ctxt->myDoc);
1602
	ctxt->vctxt.finishDtd = XML_CTXT_FINISH_DTD_1;
1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622
    }
#endif /* LIBXML_VALID_ENABLED */

    if (prefix != NULL)
	xmlFree(prefix);

}

/**
 * xmlSAX2EndElement:
 * @ctx: the user data (XML parser context)
 * @name:  The element name
 *
 * called when the end of an element has been detected.
 */
void
xmlSAX2EndElement(void *ctx, const xmlChar *name ATTRIBUTE_UNUSED)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlParserNodeInfo node_info;
1623
    xmlNodePtr cur;
1624

1625 1626
    if (ctx == NULL) return;
    cur = ctxt->node;
1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686
#ifdef DEBUG_SAX
    if (name == NULL)
        xmlGenericError(xmlGenericErrorContext, "SAX.xmlSAX2EndElement(NULL)\n");
    else
	xmlGenericError(xmlGenericErrorContext, "SAX.xmlSAX2EndElement(%s)\n", name);
#endif
    
    /* Capture end position and add node */
    if (cur != NULL && ctxt->record_info) {
      node_info.end_pos = ctxt->input->cur - ctxt->input->base;
      node_info.end_line = ctxt->input->line;
      node_info.node = cur;
      xmlParserAddNodeInfo(ctxt, &node_info);
    }
    ctxt->nodemem = -1;

#ifdef LIBXML_VALID_ENABLED
    if (ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset)
        ctxt->valid &= xmlValidateOneElement(&ctxt->vctxt, ctxt->myDoc,
					     cur);
#endif /* LIBXML_VALID_ENABLED */

    
    /*
     * end of parsing of this node.
     */
#ifdef DEBUG_SAX_TREE
    xmlGenericError(xmlGenericErrorContext, "popping(%s)\n", cur->name);
#endif
    nodePop(ctxt);
}
#endif /* LIBXML_SAX1_ENABLED || LIBXML_HTML_ENABLE */

/*
 * xmlSAX2TextNode:
 * @ctxt:  the parser context
 * @str:  the input string
 * @len: the string length
 * 
 * Remove the entities from an attribute value
 *
 * Returns the newly allocated string or NULL if not needed or error
 */
static xmlNodePtr
xmlSAX2TextNode(xmlParserCtxtPtr ctxt, const xmlChar *str, int len) {
    xmlNodePtr ret;
    const xmlChar *intern = NULL;

    /*
     * Allocate
     */
    if (ctxt->freeElems != NULL) {
	ret = ctxt->freeElems;
	ctxt->freeElems = ret->next;
	ctxt->freeElemsNr--;
    } else {
	ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
    }
    if (ret == NULL) {
1687
        xmlErrMemory(ctxt, "xmlSAX2Characters");
1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714
	return(NULL);
    }
    /*
     * intern the formatting blanks found between tags, or the
     * very short strings
     */
    if (ctxt->dictNames) {
        xmlChar cur = str[len];

	if ((len <= 3) && ((cur == '"') || (cur == '\'') ||
	    ((cur == '<') && (str[len + 1] != '!')))) {
	    intern = xmlDictLookup(ctxt->dict, str, len);
	} else if (IS_BLANK_CH(*str) && (len < 60) && (cur == '<') &&
	           (str[len + 1] != '!')) {
	    int i;

	    for (i = 1;i < len;i++) {
		if (!IS_BLANK_CH(str[i])) goto skip;
	    }
	    intern = xmlDictLookup(ctxt->dict, str, len);
	}
    }
skip:
    memset(ret, 0, sizeof(xmlNode));
    ret->type = XML_TEXT_NODE;

    ret->name = xmlStringText;
1715
    if (intern == NULL) {
1716
	ret->content = xmlStrndup(str, len);
1717 1718 1719 1720 1721 1722
	if (ret->content == NULL) {
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2TextNode");
	    xmlFree(ret);
	    return(NULL);
	}
    } else
1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830
	ret->content = (xmlChar *) intern;

    if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
	xmlRegisterNodeDefaultValue(ret);
    return(ret);
}

#ifdef LIBXML_VALID_ENABLED
/*
 * xmlSAX2DecodeAttrEntities:
 * @ctxt:  the parser context
 * @str:  the input string
 * @len: the string length
 * 
 * Remove the entities from an attribute value
 *
 * Returns the newly allocated string or NULL if not needed or error
 */
static xmlChar *
xmlSAX2DecodeAttrEntities(xmlParserCtxtPtr ctxt, const xmlChar *str,
                          const xmlChar *end) {
    const xmlChar *in;
    xmlChar *ret;

    in = str;
    while (in < end)
        if (*in++ == '&')
	    goto decode;
    return(NULL);
decode:
    ctxt->depth++;
    ret = xmlStringLenDecodeEntities(ctxt, str, end - str,
				     XML_SUBSTITUTE_REF, 0,0,0);
    ctxt->depth--;
    return(ret);
}
#endif /* LIBXML_VALID_ENABLED */

/**
 * xmlSAX2AttributeNs:
 * @ctx: the user data (XML parser context)
 * @localname:  the local name of the attribute
 * @prefix:  the attribute namespace prefix if available
 * @URI:  the attribute namespace name if available
 * @value:  Start of the attribute value
 * @valueend: end of 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.
 */
static void
xmlSAX2AttributeNs(xmlParserCtxtPtr ctxt,
                   const xmlChar * localname,
                   const xmlChar * prefix,
		   const xmlChar * value,
		   const xmlChar * valueend)
{
    xmlAttrPtr ret;
    xmlNsPtr namespace = NULL;
    xmlChar *dup = NULL;

    /*
     * Note: if prefix == NULL, the attribute is not in the default namespace
     */
    if (prefix != NULL)
	namespace = xmlSearchNs(ctxt->myDoc, ctxt->node, prefix);

    /*
     * allocate the node
     */
    if (ctxt->freeAttrs != NULL) {
        ret = ctxt->freeAttrs;
	ctxt->freeAttrs = ret->next;
	ctxt->freeAttrsNr--;
	memset(ret, 0, sizeof(xmlAttr));
	ret->type = XML_ATTRIBUTE_NODE;

	ret->parent = ctxt->node; 
	ret->doc = ctxt->myDoc;
	ret->ns = namespace;

	if (ctxt->dictNames)
	    ret->name = localname;
	else
	    ret->name = xmlStrdup(localname);

        /* link at the end to preserv order, TODO speed up with a last */
	if (ctxt->node->properties == NULL) {
	    ctxt->node->properties = ret;
	} else {
	    xmlAttrPtr prev = ctxt->node->properties;

	    while (prev->next != NULL) prev = prev->next;
	    prev->next = ret;
	    ret->prev = prev;
	}

	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
	    xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
    } else {
	if (ctxt->dictNames)
	    ret = xmlNewNsPropEatName(ctxt->node, namespace, 
	                              (xmlChar *) localname, NULL);
	else
	    ret = xmlNewNsProp(ctxt->node, namespace, localname, NULL);
	if (ret == NULL) {
1831
	    xmlErrMemory(ctxt, "xmlSAX2AttributeNs");
1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856
	    return;
	}
    }

    if ((ctxt->replaceEntities == 0) && (!ctxt->html)) {
	xmlNodePtr tmp;

	/*
	 * We know that if there is an entity reference, then
	 * the string has been dup'ed and terminates with 0
	 * otherwise with ' or "
	 */
	if (*valueend != 0) {
	    tmp = xmlSAX2TextNode(ctxt, value, valueend - value);
	    ret->children = tmp;
	    ret->last = tmp;
	    if (tmp != NULL) {
		tmp->doc = ret->doc;
		tmp->parent = (xmlNodePtr) ret;
	    }
	} else {
	    ret->children = xmlStringLenGetNodeList(ctxt->myDoc, value,
						    valueend - value);
	    tmp = ret->children;
	    while (tmp != NULL) {
1857
	        tmp->doc = ret->doc;
1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961
		tmp->parent = (xmlNodePtr) ret;
		if (tmp->next == NULL)
		    ret->last = tmp;
		tmp = tmp->next;
	    }
	}
    } else if (value != NULL) {
	xmlNodePtr tmp;

	tmp = xmlSAX2TextNode(ctxt, value, valueend - value);
	ret->children = tmp;
	ret->last = tmp;
	if (tmp != NULL) {
	    tmp->doc = ret->doc;
	    tmp->parent = (xmlNodePtr) ret;
	}
    }

#ifdef LIBXML_VALID_ENABLED
    if ((!ctxt->html) && ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset) {
	/*
	 * If we don't substitute entities, the validation should be
	 * done on a value with replaced entities anyway.
	 */
        if (!ctxt->replaceEntities) {
	    dup = xmlSAX2DecodeAttrEntities(ctxt, value, valueend);
	    if (dup == NULL) {
	        if (*valueend == 0) {
		    ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
				    ctxt->myDoc, ctxt->node, ret, value);
		} else {
		    /*
		     * That should already be normalized.
		     * cheaper to finally allocate here than duplicate
		     * entry points in the full validation code
		     */
		    dup = xmlStrndup(value, valueend - value);

		    ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
				    ctxt->myDoc, ctxt->node, ret, dup);
		}
	    } else {
	        /*
		 * dup now contains a string of the flattened attribute
		 * content with entities substitued. Check if we need to
		 * apply an extra layer of normalization.
		 * It need to be done twice ... it's an extra burden related
		 * to the ability to keep references in attributes
		 */
		if (ctxt->attsSpecial != NULL) {
		    xmlChar *nvalnorm;
		    xmlChar fn[50];
		    xmlChar *fullname;
		    
		    fullname = xmlBuildQName(localname, prefix, fn, 50);
		    if (fullname != NULL) {
			ctxt->vctxt.valid = 1;
		        nvalnorm = xmlValidCtxtNormalizeAttributeValue(
			                 &ctxt->vctxt, ctxt->myDoc,
					 ctxt->node, fullname, dup);
			if (ctxt->vctxt.valid != 1)
			    ctxt->valid = 0;

			if ((fullname != fn) && (fullname != localname))
			    xmlFree(fullname);
			if (nvalnorm != NULL) {
			    xmlFree(dup);
			    dup = nvalnorm;
			}
		    }
		}

		ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
			        ctxt->myDoc, ctxt->node, ret, dup);
	    }
	} else {
	    /*
	     * if entities already have been substitued, then
	     * the attribute as passed is already normalized
	     */
	    dup = xmlStrndup(value, valueend - value);

	    ctxt->valid &= xmlValidateOneAttribute(&ctxt->vctxt,
	                             ctxt->myDoc, ctxt->node, ret, dup);
	}
    } else
#endif /* LIBXML_VALID_ENABLED */
           if (((ctxt->loadsubset & XML_SKIP_IDS) == 0) &&
	       (((ctxt->replaceEntities == 0) && (ctxt->external != 2)) ||
	        ((ctxt->replaceEntities != 0) && (ctxt->inSubset == 0)))) {
        /*
	 * when validating, the ID registration is done at the attribute
	 * validation level. Otherwise we have to do specific handling here.
	 */
	if (xmlIsID(ctxt->myDoc, ctxt->node, ret)) {
	    /* might be worth duplicate entry points and not copy */
	    if (dup == NULL)
	        dup = xmlStrndup(value, valueend - value);
	    xmlAddID(&ctxt->vctxt, ctxt->myDoc, dup, ret);
	} else if (xmlIsRef(ctxt->myDoc, ctxt->node, ret)) {
	    if (dup == NULL)
	        dup = xmlStrndup(value, valueend - value);
	    xmlAddRef(&ctxt->vctxt, ctxt->myDoc, dup, ret);
1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
        } else if ((prefix == ctxt->str_xml) &&
	           (localname[0] == 'i') && (localname[1] == 'd') &&
		   (localname[2] == 0)) {
	    /*
	     * Add the xml:id value
	     *
	     * Open issue: normalization of the value.
	     */
	    if (dup == NULL)
	        dup = xmlStrndup(value, valueend - value);
1972
#ifdef LIBXML_VALID_ENABLED
1973 1974 1975 1976 1977
	    if (xmlValidateNCName(dup, 1) != 0) {
	        xmlErrValid(ctxt, XML_DTD_XMLID_VALUE,
		      "xml:id : attribute value %s is not an NCName\n",
			    (const char *) dup, NULL);
	    }
1978
#endif
1979 1980
	    xmlAddID(&ctxt->vctxt, ctxt->myDoc, dup, ret);
	}
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
    }
    if (dup != NULL)
	xmlFree(dup);
}

/**
 * xmlSAX2StartElementNs:
 * @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.
 * @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.
 */
void
xmlSAX2StartElementNs(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)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret;
2016
    xmlNodePtr parent;
2017 2018 2019 2020
    xmlNsPtr last = NULL, ns;
    const xmlChar *uri, *pref;
    int i, j;

2021 2022
    if (ctx == NULL) return;
    parent = ctxt->node;
2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048
    /*
     * First check on validity:
     */
    if (ctxt->validate && (ctxt->myDoc->extSubset == NULL) && 
        ((ctxt->myDoc->intSubset == NULL) ||
	 ((ctxt->myDoc->intSubset->notations == NULL) && 
	  (ctxt->myDoc->intSubset->elements == NULL) &&
	  (ctxt->myDoc->intSubset->attributes == NULL) && 
	  (ctxt->myDoc->intSubset->entities == NULL)))) {
	xmlErrValid(ctxt, XML_ERR_NO_DTD,
	  "Validation failed: no DTD found !", NULL, NULL);
	ctxt->validate = 0;
    }

    /*
     * allocate the node
     */
    if (ctxt->freeElems != NULL) {
        ret = ctxt->freeElems;
	ctxt->freeElems = ret->next;
	ctxt->freeElemsNr--;
	memset(ret, 0, sizeof(xmlNode));
	ret->type = XML_ELEMENT_NODE;

	if (ctxt->dictNames)
	    ret->name = localname;
2049
	else {
2050
	    ret->name = xmlStrdup(localname);
2051 2052 2053 2054 2055
	    if (ret->name == NULL) {
	        xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElementNs");
		return;
	    }
	}
2056 2057 2058 2059 2060 2061 2062 2063 2064
	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
	    xmlRegisterNodeDefaultValue(ret);
    } else {
	if (ctxt->dictNames)
	    ret = xmlNewDocNodeEatName(ctxt->myDoc, NULL, 
	                               (xmlChar *) localname, NULL);
	else
	    ret = xmlNewDocNode(ctxt->myDoc, NULL, localname, NULL);
	if (ret == NULL) {
2065
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElementNs");
2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077
	    return;
	}
    }
    if (ctxt->linenumbers) {
	if (ctxt->input != NULL) {
	    if (ctxt->input->line < 65535)
		ret->line = (short) ctxt->input->line;
	    else
	        ret->line = 65535;
	}
    }

2078
    if ((ctxt->myDoc->children == NULL) || (parent == NULL)) {
2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097
        xmlAddChild((xmlNodePtr) ctxt->myDoc, (xmlNodePtr) ret);
    }
    /*
     * Build the namespace list
     */
    for (i = 0,j = 0;j < nb_namespaces;j++) {
        pref = namespaces[i++];
	uri = namespaces[i++];
	ns = xmlNewNs(NULL, uri, pref);
	if (ns != NULL) {
	    if (last == NULL) {
	        ret->nsDef = last = ns;
	    } else {
	        last->next = ns;
		last = ns;
	    }
	    if ((URI != NULL) && (prefix == pref))
		ret->ns = ns;
	} else {
2098
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElementNs");
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	    return;
	}
#ifdef LIBXML_VALID_ENABLED
	if ((!ctxt->html) && ctxt->validate && ctxt->wellFormed &&
	    ctxt->myDoc && ctxt->myDoc->intSubset) {
	    ctxt->valid &= xmlValidateOneNamespace(&ctxt->vctxt, ctxt->myDoc,
	                                           ret, prefix, ns, uri);
	}
#endif /* LIBXML_VALID_ENABLED */
    }
    ctxt->nodemem = -1;

    /*
     * We are parsing a new node.
     */
    nodePush(ctxt, ret);

    /*
     * Link the child element
     */
    if (parent != NULL) {
        if (parent->type == XML_ELEMENT_NODE) {
	    xmlAddChild(parent, ret);
	} else {
	    xmlAddSibling(parent, ret);
	}
    }

    /*
     * Insert the defaulted attributes from the DTD only if requested:
     */
    if ((nb_defaulted != 0) &&
        ((ctxt->loadsubset & XML_COMPLETE_ATTRS) == 0))
	nb_attributes -= nb_defaulted;

    /*
     * Search the namespace if it wasn't already found
2136
     * Note that, if prefix is NULL, this searches for the default Ns
2137 2138
     */
    if ((URI != NULL) && (ret->ns == NULL)) {
2139
        ret->ns = xmlSearchNs(ctxt->myDoc, parent, prefix);
2140 2141
	if (ret->ns == NULL) {
	    ns = xmlNewNs(ret, NULL, prefix);
2142 2143 2144 2145
	    if (ns == NULL) {
	        xmlSAX2ErrMemory(ctxt, "xmlSAX2StartElementNs");
		return;
	    }
2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166
	    if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL))
		ctxt->sax->warning(ctxt->userData, 
		     "Namespace prefix %s was not found\n", prefix);
	}
    }

    /*
     * process all the other attributes
     */
    if (nb_attributes > 0) {
        for (j = 0,i = 0;i < nb_attributes;i++,j+=5) {
	    xmlSAX2AttributeNs(ctxt, attributes[j], attributes[j+1],
	                       attributes[j+3], attributes[j+4]);
	}
    }

#ifdef LIBXML_VALID_ENABLED
    /*
     * If it's the Document root, finish the DTD validation and
     * check the document root element for validity
     */
2167
    if ((ctxt->validate) && (ctxt->vctxt.finishDtd == XML_CTXT_FINISH_DTD_0)) {
2168 2169 2170 2171 2172 2173 2174 2175
	int chk;

	chk = xmlValidateDtdFinal(&ctxt->vctxt, ctxt->myDoc);
	if (chk <= 0)
	    ctxt->valid = 0;
	if (chk < 0)
	    ctxt->wellFormed = 0;
	ctxt->valid &= xmlValidateRoot(&ctxt->vctxt, ctxt->myDoc);
2176
	ctxt->vctxt.finishDtd = XML_CTXT_FINISH_DTD_1;
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    }
#endif /* LIBXML_VALID_ENABLED */
}

/**
 * xmlSAX2EndElementNs:
 * @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.
 */
void
xmlSAX2EndElementNs(void *ctx,
                    const xmlChar * localname ATTRIBUTE_UNUSED,
                    const xmlChar * prefix ATTRIBUTE_UNUSED,
		    const xmlChar * URI ATTRIBUTE_UNUSED)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlParserNodeInfo node_info;
2199
    xmlNodePtr cur;
2200

2201 2202
    if (ctx == NULL) return;
    cur = ctxt->node;
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    /* Capture end position and add node */
    if ((ctxt->record_info) && (cur != NULL)) {
        node_info.end_pos = ctxt->input->cur - ctxt->input->base;
        node_info.end_line = ctxt->input->line;
        node_info.node = cur;
        xmlParserAddNodeInfo(ctxt, &node_info);
    }
    ctxt->nodemem = -1;

#ifdef LIBXML_VALID_ENABLED
    if (ctxt->validate && ctxt->wellFormed &&
        ctxt->myDoc && ctxt->myDoc->intSubset)
        ctxt->valid &= xmlValidateOneElement(&ctxt->vctxt, ctxt->myDoc, cur);
#endif /* LIBXML_VALID_ENABLED */

    /*
     * end of parsing of this node.
     */
    nodePop(ctxt);
}

/**
 * xmlSAX2Reference:
 * @ctx: the user data (XML parser context)
 * @name:  The entity name
 *
 * called when an entity xmlSAX2Reference is detected. 
 */
void
xmlSAX2Reference(void *ctx, const xmlChar *name)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret;

2237
    if (ctx == NULL) return;
2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2Reference(%s)\n", name);
#endif
    if (name[0] == '#')
	ret = xmlNewCharRef(ctxt->myDoc, name);
    else
	ret = xmlNewReference(ctxt->myDoc, name);
#ifdef DEBUG_SAX_TREE
    xmlGenericError(xmlGenericErrorContext,
	    "add xmlSAX2Reference %s to %s \n", name, ctxt->node->name);
#endif
    xmlAddChild(ctxt->node, ret);
}

/**
 * xmlSAX2Characters:
 * @ctx: the user data (XML parser context)
 * @ch:  a xmlChar string
 * @len: the number of xmlChar
 *
 * receiving some chars from the parser.
 */
void
xmlSAX2Characters(void *ctx, const xmlChar *ch, int len)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr lastChild;

2267
    if (ctx == NULL) return;
2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2Characters(%.30s, %d)\n", ch, len);
#endif
    /*
     * Handle the data if any. If there is no child
     * add it as content, otherwise if the last child is text,
     * concatenate it, else create a new node of type text.
     */

    if (ctxt->node == NULL) {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext,
		"add chars: ctxt->node == NULL !\n");
#endif
        return;
    }
    lastChild = ctxt->node->last;
#ifdef DEBUG_SAX_TREE
    xmlGenericError(xmlGenericErrorContext,
	    "add chars to %s \n", ctxt->node->name);
#endif

    /*
     * Here we needed an accelerator mechanism in case of very large
     * elements. Use an attribute in the structure !!!
     */
    if (lastChild == NULL) {
        lastChild = xmlSAX2TextNode(ctxt, ch, len);
	if (lastChild != NULL) {
	    ctxt->node->children = lastChild;
	    ctxt->node->last = lastChild;
	    lastChild->parent = ctxt->node;
	    lastChild->doc = ctxt->node->doc;
	    ctxt->nodelen = len;
	    ctxt->nodemem = len + 1;
2304 2305 2306
	} else {
	    xmlSAX2ErrMemory(ctxt, "xmlSAX2Characters");
	    return;
2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331
	}
    } else {
	int coalesceText = (lastChild != NULL) &&
	    (lastChild->type == XML_TEXT_NODE) &&
	    (lastChild->name == xmlStringText);
	if ((coalesceText) && (ctxt->nodemem != 0)) {
	    /*
	     * The whole point of maintaining nodelen and nodemem,
	     * xmlTextConcat is too costly, i.e. compute length,
	     * reallocate a new buffer, move data, append ch. Here
	     * We try to minimaze realloc() uses and avoid copying
	     * and recomputing length over and over.
	     */
	    if ((ctxt->nodemem == ctxt->nodelen + 1) &&
	        (xmlDictOwns(ctxt->dict, lastChild->content))) {
		lastChild->content = xmlStrdup(lastChild->content);
	    }
	    if (ctxt->nodelen + len >= ctxt->nodemem) {
		xmlChar *newbuf;
		int size;

		size = ctxt->nodemem + len;
		size *= 2;
                newbuf = (xmlChar *) xmlRealloc(lastChild->content,size);
		if (newbuf == NULL) {
2332
		    xmlSAX2ErrMemory(ctxt, "xmlSAX2Characters");
2333 2334 2335 2336 2337 2338 2339 2340 2341 2342
		    return;
		}
		ctxt->nodemem = size;
		lastChild->content = newbuf;
	    }
	    memcpy(&lastChild->content[ctxt->nodelen], ch, len);
	    ctxt->nodelen += len;
	    lastChild->content[ctxt->nodelen] = 0;
	} else if (coalesceText) {
	    if (xmlTextConcat(lastChild, ch, len)) {
2343
		xmlSAX2ErrMemory(ctxt, "xmlSAX2Characters");
2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395
	    }
	    if (ctxt->node->children != NULL) {
		ctxt->nodelen = xmlStrlen(lastChild->content);
		ctxt->nodemem = ctxt->nodelen + 1;
	    }
	} else {
	    /* Mixed content, first time */
	    lastChild = xmlSAX2TextNode(ctxt, ch, len);
	    if (lastChild != NULL) {
		xmlAddChild(ctxt->node, lastChild);
		if (ctxt->node->children != NULL) {
		    ctxt->nodelen = len;
		    ctxt->nodemem = len + 1;
		}
	    }
	}
    }
}

/**
 * xmlSAX2IgnorableWhitespace:
 * @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 xmlSAX2Characters
 */
void
xmlSAX2IgnorableWhitespace(void *ctx ATTRIBUTE_UNUSED, const xmlChar *ch ATTRIBUTE_UNUSED, int len ATTRIBUTE_UNUSED)
{
    /* xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; */
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2IgnorableWhitespace(%.30s, %d)\n", ch, len);
#endif
}

/**
 * xmlSAX2ProcessingInstruction:
 * @ctx: the user data (XML parser context)
 * @target:  the target name
 * @data: the PI data's
 *
 * A processing instruction has been parsed.
 */
void
xmlSAX2ProcessingInstruction(void *ctx, const xmlChar *target,
                      const xmlChar *data)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret;
2396
    xmlNodePtr parent;
2397

2398 2399
    if (ctx == NULL) return;
    parent = ctxt->node;
2400 2401 2402 2403 2404
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.xmlSAX2ProcessingInstruction(%s, %s)\n", target, data);
#endif

2405
    ret = xmlNewDocPI(ctxt->myDoc, target, data);
2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451
    if (ret == NULL) return;
    parent = ctxt->node;

    if (ctxt->inSubset == 1) {
	xmlAddChild((xmlNodePtr) ctxt->myDoc->intSubset, ret);
	return;
    } else if (ctxt->inSubset == 2) {
	xmlAddChild((xmlNodePtr) ctxt->myDoc->extSubset, ret);
	return;
    }
    if ((ctxt->myDoc->children == NULL) || (parent == NULL)) {
#ifdef DEBUG_SAX_TREE
	    xmlGenericError(xmlGenericErrorContext,
		    "Setting PI %s as root\n", target);
#endif
        xmlAddChild((xmlNodePtr) ctxt->myDoc, (xmlNodePtr) ret);
	return;
    }
    if (parent->type == XML_ELEMENT_NODE) {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext,
		"adding PI %s child to %s\n", target, parent->name);
#endif
	xmlAddChild(parent, ret);
    } else {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext,
		"adding PI %s sibling to ", target);
	xmlDebugDumpOneNode(stderr, parent, 0);
#endif
	xmlAddSibling(parent, ret);
    }
}

/**
 * xmlSAX2Comment:
 * @ctx: the user data (XML parser context)
 * @value:  the xmlSAX2Comment content
 *
 * A xmlSAX2Comment has been parsed.
 */
void
xmlSAX2Comment(void *ctx, const xmlChar *value)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret;
2452
    xmlNodePtr parent;
2453

2454 2455
    if (ctx == NULL) return;
    parent = ctxt->node;
2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext, "SAX.xmlSAX2Comment(%s)\n", value);
#endif
    ret = xmlNewDocComment(ctxt->myDoc, value);
    if (ret == NULL) return;

    if (ctxt->inSubset == 1) {
	xmlAddChild((xmlNodePtr) ctxt->myDoc->intSubset, ret);
	return;
    } else if (ctxt->inSubset == 2) {
	xmlAddChild((xmlNodePtr) ctxt->myDoc->extSubset, ret);
	return;
    }
    if ((ctxt->myDoc->children == NULL) || (parent == NULL)) {
#ifdef DEBUG_SAX_TREE
	    xmlGenericError(xmlGenericErrorContext,
		    "Setting xmlSAX2Comment as root\n");
#endif
        xmlAddChild((xmlNodePtr) ctxt->myDoc, (xmlNodePtr) ret);
	return;
    }
    if (parent->type == XML_ELEMENT_NODE) {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext,
		"adding xmlSAX2Comment child to %s\n", parent->name);
#endif
	xmlAddChild(parent, ret);
    } else {
#ifdef DEBUG_SAX_TREE
	xmlGenericError(xmlGenericErrorContext,
		"adding xmlSAX2Comment sibling to ");
	xmlDebugDumpOneNode(stderr, parent, 0);
#endif
	xmlAddSibling(parent, ret);
    }
}

/**
 * xmlSAX2CDataBlock:
 * @ctx: the user data (XML parser context)
 * @value:  The pcdata content
 * @len:  the block length
 *
 * called when a pcdata block has been parsed
 */
void
xmlSAX2CDataBlock(void *ctx, const xmlChar *value, int len)
{
    xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
    xmlNodePtr ret, lastChild;

2507
    if (ctx == NULL) return;
2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533
#ifdef DEBUG_SAX
    xmlGenericError(xmlGenericErrorContext,
	    "SAX.pcdata(%.10s, %d)\n", value, len);
#endif
    lastChild = xmlGetLastChild(ctxt->node);
#ifdef DEBUG_SAX_TREE
    xmlGenericError(xmlGenericErrorContext,
	    "add chars to %s \n", ctxt->node->name);
#endif
    if ((lastChild != NULL) &&
        (lastChild->type == XML_CDATA_SECTION_NODE)) {
	xmlTextConcat(lastChild, value, len);
    } else {
	ret = xmlNewCDataBlock(ctxt->myDoc, value, len);
	xmlAddChild(ctxt->node, ret);
    }
}

static int xmlSAX2DefaultVersionValue = 2;

#ifdef LIBXML_SAX1_ENABLED
/**
 * xmlSAXDefaultVersion:
 * @version:  the version, 1 or 2
 *
 * Set the default version of SAX used globally by the library.
2534 2535 2536 2537
 * By default, during initialization the default is set to 2.
 * Note that it is generally a better coding style to use
 * xmlSAXVersion() to set up the version explicitly for a given
 * parsing context.
2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559