Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-11-05 16:43:52 +01:00
Code Issues Releases Wiki Activity
Files
27f87308aeca193c9b8df05cec446491f5190388
audacity/lib-src/libraptor/src/raptor_sax2.c
ra 58caf78a86 Move library tree where it belongs
2010-01-24 09:19:39 +00:00

1093 lines
27 KiB
C
Raw Blame History

/* -*- Mode: c; c-basic-offset: 2 -*-
*
* raptor_sax2.c - Raptor SAX2 API
*
* Copyright (C) 2000-2008, David Beckett http://www.dajobe.org/
* Copyright (C) 2000-2005, University of Bristol, UK http://www.bristol.ac.uk/
*
* This package is Free Software and part of Redland http://librdf.org/
*
* It is licensed under the following three licenses as alternatives:
* 1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* complete terms and further detail along with the license texts for
* the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
*
*
*/
#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
#endif
#ifdef WIN32
#include <win32_raptor_config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
/* Raptor includes */
#include "raptor.h"
#include "raptor_internal.h"
/* Define this for far too much output */
#undef RAPTOR_DEBUG_CDATA
int
raptor_sax2_init(void)
{
#ifdef RAPTOR_XML_LIBXML
xmlInitParser();
#endif
return 0;
}
void
raptor_sax2_finish(void)
{
#ifdef RAPTOR_XML_LIBXML
xmlCleanupParser();
xmlSetStructuredErrorFunc(NULL, NULL);
xmlSetGenericErrorFunc(NULL, NULL);
#endif
}
/**
* raptor_new_sax2:
* @user_data: pointer context information to pass to handlers
* @error_handlers: error handlers pointer
*
* Constructor - Create a new SAX2 with error handlers
*
* Return value: new #raptor_sax2 object or NULL on failure
*/
raptor_sax2*
raptor_new_sax2(void* user_data, raptor_error_handlers* error_handlers)
{
raptor_sax2* sax2;
sax2=(raptor_sax2*)RAPTOR_CALLOC(raptor_sax2, 1, sizeof(raptor_sax2));
if(!sax2)
return NULL;
#ifdef RAPTOR_XML_LIBXML
sax2->magic=RAPTOR_LIBXML_MAGIC;
#endif
sax2->user_data=user_data;
sax2->locator=error_handlers->locator;
sax2->error_handlers=error_handlers;
#ifdef RAPTOR_XML_LIBXML
/* sets xmlGenericErrorContext and xmlStructuredError */
xmlSetStructuredErrorFunc(&sax2->error_handlers,
raptor_libxml_xmlStructuredErrorFunc);
/* sets xmlGenericErrorContext and xmlGenericError */
xmlSetGenericErrorFunc(&sax2->error_handlers,
(xmlGenericErrorFunc)raptor_libxml_generic_error);
#endif
return sax2;
}
/**
* raptor_free_sax2:
* @sax2: SAX2 object
*
* Destructor - destroy a SAX2 object
*/
void
raptor_free_sax2(raptor_sax2 *sax2) {
raptor_xml_element *xml_element;
#ifdef RAPTOR_XML_EXPAT
if(sax2->xp) {
XML_ParserFree(sax2->xp);
sax2->xp=NULL;
}
#endif
#ifdef RAPTOR_XML_LIBXML
if(sax2->xc) {
raptor_libxml_free(sax2->xc);
sax2->xc=NULL;
}
#endif
while( (xml_element=raptor_xml_element_pop(sax2)) )
raptor_free_xml_element(xml_element);
raptor_namespaces_clear(&sax2->namespaces);
if(sax2->base_uri)
raptor_free_uri(sax2->base_uri);
RAPTOR_FREE(raptor_sax2, sax2);
}
/**
* raptor_sax2_set_start_element_handler:
* @sax2: SAX2 object
* @handler: start element handler
*
* Set SAX2 start element handler.
*/
void
raptor_sax2_set_start_element_handler(raptor_sax2* sax2,
raptor_sax2_start_element_handler handler)
{
sax2->start_element_handler=handler;
}
/**
* raptor_sax2_set_end_element_handler:
* @sax2: SAX2 object
* @handler: end element handler
*
* Set SAX2 end element handler.
*/
void
raptor_sax2_set_end_element_handler(raptor_sax2* sax2,
raptor_sax2_end_element_handler handler)
{
sax2->end_element_handler=handler;
}
/**
* raptor_sax2_set_characters_handler:
* @sax2: SAX2 object
* @handler: characters handler
*
* Set SAX2 characters handler.
*/
void
raptor_sax2_set_characters_handler(raptor_sax2* sax2,
raptor_sax2_characters_handler handler)
{
sax2->characters_handler=handler;
}
/**
* raptor_sax2_set_cdata_handler:
* @sax2: SAX2 object
* @handler: CDATA handler
*
* Set SAX2 CDATA handler.
*/
void
raptor_sax2_set_cdata_handler(raptor_sax2* sax2,
raptor_sax2_cdata_handler handler)
{
sax2->cdata_handler=handler;
}
/**
* raptor_sax2_set_comment_handler:
* @sax2: SAX2 object
* @handler: comment handler
*
* Set SAX2 XML comment handler.
*/
void
raptor_sax2_set_comment_handler(raptor_sax2* sax2,
raptor_sax2_comment_handler handler)
{
sax2->comment_handler=handler;
}
/**
* raptor_sax2_set_unparsed_entity_decl_handler:
* @sax2: SAX2 object
* @handler: unparsed entity declaration handler
*
* Set SAX2 XML unparsed entity declaration handler.
*/
void
raptor_sax2_set_unparsed_entity_decl_handler(raptor_sax2* sax2,
raptor_sax2_unparsed_entity_decl_handler handler)
{
sax2->unparsed_entity_decl_handler=handler;
}
/**
* raptor_sax2_set_external_entity_ref_handler:
* @sax2: SAX2 object
* @handler: entity reference handler
*
* Set SAX2 XML entity reference handler.
*/
void
raptor_sax2_set_external_entity_ref_handler(raptor_sax2* sax2,
raptor_sax2_external_entity_ref_handler handler)
{
sax2->external_entity_ref_handler=handler;
}
/**
* raptor_sax2_set_namespace_handler:
* @sax2: #raptor_sax2 object
* @handler: new namespace callback function
*
* Set the XML namespace handler function.
*
* When a prefix/namespace is seen in an XML parser, call the given
* @handler with the prefix string and the #raptor_uri namespace URI.
* Either can be NULL for the default prefix or default namespace.
*
* The handler function does not deal with duplicates so any
* namespace may be declared multiple times when a namespace is seen
* in different parts of a document.
*
*/
void
raptor_sax2_set_namespace_handler(raptor_sax2* sax2,
raptor_namespace_handler handler)
{
sax2->namespace_handler=handler;
}
raptor_xml_element*
raptor_xml_element_pop(raptor_sax2 *sax2)
{
raptor_xml_element *element=sax2->current_element;
if(!element)
return NULL;
sax2->current_element=element->parent;
if(sax2->root_element == element) /* just deleted root */
sax2->root_element=NULL;
return element;
}
void
raptor_xml_element_push(raptor_sax2 *sax2, raptor_xml_element* element)
{
element->parent=sax2->current_element;
sax2->current_element=element;
if(!sax2->root_element)
sax2->root_element=element;
}
/**
* raptor_xml_element_is_empty:
* @xml_element: XML Element
*
* Check if an XML Element is empty.
*
* Return value: non-0 if the element is empty.
*/
int
raptor_xml_element_is_empty(raptor_xml_element* xml_element)
{
return !xml_element->content_cdata_seen &&
!xml_element->content_element_seen;
}
/**
* raptor_sax2_inscope_xml_language:
* @sax2: SAX2 object
*
* Get the in-scope XML language
*
* Return value: the XML language or NULL if none is in scope.
*/
const unsigned char*
raptor_sax2_inscope_xml_language(raptor_sax2 *sax2)
{
raptor_xml_element* xml_element;
for(xml_element=sax2->current_element;
xml_element;
xml_element=xml_element->parent)
if(xml_element->xml_language) {
if(!*xml_element->xml_language)
return NULL;
return xml_element->xml_language;
}
return NULL;
}
/**
* raptor_sax2_inscope_base_uri:
* @sax2: SAX2 object
*
* Get the in-scope base URI
*
* Return value: the in-scope base URI shared object or NULL if none is in scope.
*/
raptor_uri*
raptor_sax2_inscope_base_uri(raptor_sax2 *sax2)
{
raptor_xml_element *xml_element;
for(xml_element=sax2->current_element;
xml_element;
xml_element=xml_element->parent)
if(xml_element->base_uri)
return xml_element->base_uri;
return sax2->base_uri;
}
int
raptor_sax2_get_depth(raptor_sax2 *sax2)
{
return sax2->depth;
}
void
raptor_sax2_inc_depth(raptor_sax2 *sax2)
{
sax2->depth++;
}
void
raptor_sax2_dec_depth(raptor_sax2 *sax2)
{
sax2->depth--;
}
static void raptor_sax2_simple_error(void* user_data, const char *message, ...) RAPTOR_PRINTF_FORMAT(2, 3);
/*
* raptor_sax2_simple_error - Error from a sax2 - Internal
*
* Matches the raptor_simple_message_handler API but calls
* the sax2 error_handler
*/
static void
raptor_sax2_simple_error(void* user_data, const char *message, ...)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
va_list arguments;
va_start(arguments, message);
if(sax2) {
raptor_log_level level=RAPTOR_LOG_LEVEL_ERROR;
raptor_message_handler_closure* cl;
cl=&sax2->error_handlers->handlers[level];
raptor_log_error_varargs(level, cl->handler, cl->user_data,
sax2->locator,
message, arguments);
}
va_end(arguments);
}
/**
* raptor_sax2_parse_start:
* @sax2: sax2 object
* @base_uri: base URI
*
* Start an XML SAX2 parse.
*/
void
raptor_sax2_parse_start(raptor_sax2* sax2, raptor_uri *base_uri)
{
const raptor_uri_handler *uri_handler;
void *uri_context;
sax2->depth=0;
sax2->root_element=NULL;
sax2->current_element=NULL;
if(sax2->base_uri)
raptor_free_uri(sax2->base_uri);
if(base_uri)
sax2->base_uri=raptor_uri_copy(base_uri);
else
sax2->base_uri=NULL;
#ifdef RAPTOR_XML_EXPAT
if(sax2->xp) {
XML_ParserFree(sax2->xp);
sax2->xp=NULL;
}
raptor_expat_init(sax2, base_uri);
#endif
#ifdef RAPTOR_XML_LIBXML
raptor_libxml_init(sax2, base_uri);
xmlSetStructuredErrorFunc(sax2->error_handlers,
raptor_libxml_xmlStructuredErrorFunc);
#if LIBXML_VERSION < 20425
sax2->first_read=1;
#endif
if(sax2->xc) {
raptor_libxml_free(sax2->xc);
sax2->xc=NULL;
}
#endif
raptor_namespaces_clear(&sax2->namespaces);
raptor_uri_get_handler(&uri_handler, &uri_context);
raptor_namespaces_init(&sax2->namespaces,
uri_handler, uri_context,
(raptor_simple_message_handler)raptor_sax2_simple_error, sax2,
1);
}
/**
* raptor_sax2_parse_chunk:
* @sax2: sax2 object
* @buffer: input buffer
* @len: input buffer lenght
* @is_end: non-0 if end of data
*
* Parse a chunk of XML data generating SAX2 events
*
* Return value: non-0 on failure
*/
int
raptor_sax2_parse_chunk(raptor_sax2* sax2, const unsigned char *buffer,
size_t len, int is_end)
{
#ifdef RAPTOR_XML_EXPAT
XML_Parser xp=sax2->xp;
int rc;
#endif
#ifdef RAPTOR_XML_LIBXML
/* parser context */
xmlParserCtxtPtr xc=sax2->xc;
int rc;
#endif
#ifdef RAPTOR_XML_LIBXML
if(!xc) {
int libxml_options = 0;
if(!len) {
/* no data given at all - emit a similar message to expat */
raptor_sax2_update_document_locator(sax2, sax2->locator);
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_ERROR, sax2->locator,
"XML Parsing failed - no element found");
return 1;
}
xc = xmlCreatePushParserCtxt(&sax2->sax, sax2, /* user data */
(char*)buffer, len,
NULL);
if(!xc)
goto handle_error;
#ifdef RAPTOR_LIBXML_XML_PARSE_NONET
if(sax2->feature_no_net)
libxml_options |= XML_PARSE_NONET;
#endif
#ifdef HAVE_XMLCTXTUSEOPTIONS
xmlCtxtUseOptions(xc, libxml_options);
#endif
xc->userData = sax2; /* user data */
xc->vctxt.userData = sax2; /* user data */
xc->vctxt.error=(xmlValidityErrorFunc)raptor_libxml_validation_error;
xc->vctxt.warning=(xmlValidityWarningFunc)raptor_libxml_validation_warning;
xc->replaceEntities = 1;
sax2->xc = xc;
if(is_end)
len=0;
else
return 0;
}
#endif
if(!len) {
#ifdef RAPTOR_XML_EXPAT
rc=XML_Parse(xp, (char*)buffer, 0, 1);
if(!rc) /* expat: 0 is failure */
goto handle_error;
#endif
#ifdef RAPTOR_XML_LIBXML
xmlParseChunk(xc, (char*)buffer, 0, 1);
#endif
return 0;
}
#ifdef RAPTOR_XML_EXPAT
rc=XML_Parse(xp, (char*)buffer, len, is_end);
if(!rc) /* expat: 0 is failure */
goto handle_error;
if(is_end)
return 0;
#endif
#ifdef RAPTOR_XML_LIBXML
/* This works around some libxml versions that fail to work
* if the buffer size is larger than the entire file
* and thus the entire parsing is done in one operation.
*
* The code below:
* 2.4.19 (oldest tested) to 2.4.24 - required
* 2.4.25 - works with or without it
* 2.4.26 or later - fails with this code
*/
#if LIBXML_VERSION < 20425
if(sax2->first_read && is_end) {
/* parse all but the last character */
rc=xmlParseChunk(xc, (char*)buffer, len-1, 0);
if(rc)
goto handle_error;
/* last character */
rc=xmlParseChunk(xc, (char*)buffer + (len-1), 1, 0);
if(rc)
goto handle_error;
/* end */
xmlParseChunk(xc, (char*)buffer, 0, 1);
return 0;
}
#endif
#if LIBXML_VERSION < 20425
sax2->first_read=0;
#endif
rc=xmlParseChunk(xc, (char*)buffer, len, is_end);
if(rc) /* libxml: non 0 is failure */
goto handle_error;
if(is_end)
return 0;
#endif
return 0;
#if defined(RAPTOR_XML_EXPAT) || defined(RAPTOR_XML_LIBXML)
handle_error:
#endif
#ifdef RAPTOR_XML_EXPAT
#ifdef EXPAT_UTF8_BOM_CRASH
if(sax2->tokens_count) {
#endif
/* Work around a bug with the expat 1.95.1 shipped with RedHat 7.2
* which dies here if the error is before <?xml?...
* The expat 1.95.1 source release version works fine.
*/
if(sax2->locator)
raptor_sax2_update_document_locator(sax2, sax2->locator);
#ifdef EXPAT_UTF8_BOM_CRASH
}
#endif
#endif /* EXPAT */
#if RAPTOR_XML_EXPAT
if(1) {
const char *error_prefix="XML Parsing failed - "; /* 21 chars */
#define ERROR_PREFIX_LEN 21
const char *error_message=XML_ErrorString(XML_GetErrorCode(xp));
size_t error_length;
char *error_buffer;
error_length=strlen(error_message);
error_buffer=(char*)RAPTOR_MALLOC(cstring,
ERROR_PREFIX_LEN + error_length+1);
if(error_buffer) {
strncpy(error_buffer, error_prefix, ERROR_PREFIX_LEN);
strncpy(error_buffer+ERROR_PREFIX_LEN, error_message, error_length+1);
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_ERROR,
sax2->locator, error_buffer);
RAPTOR_FREE(cstring, error_buffer);
} else
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_ERROR,
sax2->locator, "XML Parsing failed");
}
#endif
return 1;
}
/**
* raptor_sax2_set_feature:
* @sax2: #raptor_sax2 SAX2 object
* @feature: feature to set from enumerated #raptor_feature values
* @value: integer feature value (0 or larger)
*
* Set various SAX2 features.
*
* The allowed features are available via raptor_sax2_features_enumerate().
*
* Return value: non 0 on failure or if the feature is unknown
*/
int
raptor_sax2_set_feature(raptor_sax2 *sax2, raptor_feature feature, int value)
{
if(value < 0)
return -1;
switch(feature) {
case RAPTOR_FEATURE_NORMALIZE_LANGUAGE:
sax2->feature_normalize_language=value;
break;
case RAPTOR_FEATURE_NO_NET:
sax2->feature_no_net=value;
break;
case RAPTOR_FEATURE_SCANNING:
case RAPTOR_FEATURE_ASSUME_IS_RDF:
case RAPTOR_FEATURE_ALLOW_NON_NS_ATTRIBUTES:
case RAPTOR_FEATURE_ALLOW_OTHER_PARSETYPES:
case RAPTOR_FEATURE_ALLOW_BAGID:
case RAPTOR_FEATURE_ALLOW_RDF_TYPE_RDF_LIST:
case RAPTOR_FEATURE_NON_NFC_FATAL:
case RAPTOR_FEATURE_WARN_OTHER_PARSETYPES:
case RAPTOR_FEATURE_CHECK_RDF_ID:
case RAPTOR_FEATURE_HTML_TAG_SOUP:
case RAPTOR_FEATURE_MICROFORMATS:
case RAPTOR_FEATURE_HTML_LINK:
case RAPTOR_FEATURE_WWW_TIMEOUT:
case RAPTOR_FEATURE_RELATIVE_URIS:
case RAPTOR_FEATURE_START_URI:
case RAPTOR_FEATURE_WRITER_AUTO_INDENT:
case RAPTOR_FEATURE_WRITER_AUTO_EMPTY:
case RAPTOR_FEATURE_WRITER_INDENT_WIDTH:
case RAPTOR_FEATURE_WRITER_XML_VERSION:
case RAPTOR_FEATURE_WRITER_XML_DECLARATION:
/* DOT serializer features */
case RAPTOR_FEATURE_RESOURCE_BORDER:
case RAPTOR_FEATURE_LITERAL_BORDER:
case RAPTOR_FEATURE_BNODE_BORDER:
case RAPTOR_FEATURE_RESOURCE_FILL:
case RAPTOR_FEATURE_LITERAL_FILL:
case RAPTOR_FEATURE_BNODE_FILL:
/* JSON serializer features */
case RAPTOR_FEATURE_JSON_CALLBACK:
case RAPTOR_FEATURE_JSON_EXTRA_DATA:
/* Turtle serializer feature */
case RAPTOR_FEATURE_WRITE_BASE_URI:
/* WWW feature */
case RAPTOR_FEATURE_WWW_HTTP_CACHE_CONTROL:
case RAPTOR_FEATURE_WWW_HTTP_USER_AGENT:
default:
return -1;
break;
}
return 0;
}
void
raptor_sax2_update_document_locator(raptor_sax2* sax2,
raptor_locator* locator)
{
#ifdef RAPTOR_XML_EXPAT
raptor_expat_update_document_locator(sax2, locator);
#endif
#ifdef RAPTOR_XML_LIBXML
raptor_libxml_update_document_locator(sax2, locator);
#endif
}
/* start of an element */
void
raptor_sax2_start_element(void* user_data, const unsigned char *name,
const unsigned char **atts)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
raptor_qname* el_name;
unsigned char **xml_atts_copy=NULL;
size_t xml_atts_size=0;
int all_atts_count=0;
int ns_attributes_count=0;
raptor_qname** named_attrs=NULL;
raptor_xml_element* xml_element=NULL;
unsigned char *xml_language=NULL;
raptor_uri *xml_base=NULL;
#ifdef RAPTOR_XML_EXPAT
#ifdef EXPAT_UTF8_BOM_CRASH
sax2->tokens_count++;
#endif
#endif
#ifdef RAPTOR_XML_LIBXML
if(atts) {
int i;
/* Do XML attribute value normalization */
for (i = 0; atts[i]; i+=2) {
unsigned char *value=(unsigned char*)atts[i+1];
unsigned char *src = value;
unsigned char *dst = xmlStrdup(value);
if(!dst) {
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_FATAL,
sax2->locator, "Out of memory");
return;
}
atts[i+1]=dst;
while (*src == 0x20 || *src == 0x0d || *src == 0x0a || *src == 0x09)
src++;
while (*src) {
if (*src == 0x20 || *src == 0x0d || *src == 0x0a || *src == 0x09) {
while (*src == 0x20 || *src == 0x0d || *src == 0x0a || *src == 0x09)
src++;
if (*src)
*dst++ = 0x20;
} else {
*dst++ = *src++;
}
}
*dst = '\0';
xmlFree(value);
}
}
#endif
raptor_sax2_inc_depth(sax2);
if(atts) {
int i;
/* Save passed in XML attributes pointers so we can
* NULL the pointers when they get handled below (various atts[i]=NULL)
*/
for (i = 0; atts[i]; i++) ;
xml_atts_size=sizeof(unsigned char*) * i;
if(xml_atts_size) {
xml_atts_copy=(unsigned char**)RAPTOR_MALLOC(cstringpointer,xml_atts_size);
if(!xml_atts_copy)
goto fail;
memcpy(xml_atts_copy, atts, xml_atts_size);
}
/* XML attributes processing:
* xmlns* - XML namespaces (Namespaces in XML REC)
* Deleted and used to synthesise namespaces declarations
* xml:lang - XML language (XML REC)
* Deleted and optionally normalised to lowercase
* xml:base - XML Base (XML Base REC)
* Deleted and used to set the in-scope base URI for this XML element
*/
for (i = 0; atts[i]; i+= 2) {
all_atts_count++;
if(strncmp((char*)atts[i], "xml", 3)) {
/* count and skip non xml* attributes */
ns_attributes_count++;
continue;
}
/* synthesise the XML namespace events */
if(!memcmp((const char*)atts[i], "xmlns", 5)) {
const unsigned char *prefix=atts[i][5] ? &atts[i][6] : NULL;
const unsigned char *namespace_name=atts[i+1];
raptor_namespace* nspace;
nspace=raptor_new_namespace(&sax2->namespaces,
prefix, namespace_name,
raptor_sax2_get_depth(sax2));
if(nspace) {
raptor_namespaces_start_namespace(&sax2->namespaces, nspace);
if(sax2->namespace_handler)
(*sax2->namespace_handler)(sax2->user_data, nspace);
}
} else if(!strcmp((char*)atts[i], "xml:lang")) {
xml_language=(unsigned char*)RAPTOR_MALLOC(cstring, strlen((char*)atts[i+1])+1);
if(!xml_language) {
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_FATAL,
sax2->locator, "Out of memory");
goto fail;
}
/* optionally normalize language to lowercase */
if(sax2->feature_normalize_language) {
unsigned char *from=(unsigned char*)atts[i+1];
unsigned char *to=xml_language;
while(*from) {
if(isupper(*from))
*to++ =tolower(*from++);
else
*to++ =*from++;
}
*to='\0';
} else
strcpy((char*)xml_language, (char*)atts[i+1]);
} else if(!strcmp((char*)atts[i], "xml:base")) {
raptor_uri* base_uri;
raptor_uri* xuri;
base_uri=raptor_sax2_inscope_base_uri(sax2);
xuri=raptor_new_uri_relative_to_base(base_uri, atts[i+1]);
xml_base=raptor_new_uri_for_xmlbase(xuri);
raptor_free_uri(xuri);
}
/* delete all xml attributes whether processed above or not */
atts[i]=NULL;
}
}
/* Create new element structure */
el_name=raptor_new_qname(&sax2->namespaces, name, NULL,
(raptor_simple_message_handler)raptor_sax2_simple_error, sax2);
if(!el_name)
goto fail;
xml_element=raptor_new_xml_element(el_name, xml_language, xml_base);
if(!xml_element) {
raptor_free_qname(el_name);
goto fail;
}
/* xml_language,xml_base now owned by xml_element */
xml_language = NULL;
xml_base = NULL;
/* Turn string attributes into namespaced-attributes */
if(ns_attributes_count) {
int i;
int offset = 0;
/* Allocate new array to hold namespaced-attributes */
named_attrs=(raptor_qname**)RAPTOR_CALLOC(raptor_qname_array,
ns_attributes_count,
sizeof(raptor_qname*));
if(!named_attrs) {
raptor_log_error_to_handlers(sax2->error_handlers,
RAPTOR_LOG_LEVEL_FATAL,
sax2->locator, "Out of memory");
goto fail;
}
for (i = 0; i < all_atts_count; i++) {
raptor_qname* attr;
/* Skip previously processed attributes */
if(!atts[i<<1])
continue;
/* namespace-name[i] stored in named_attrs[i] */
attr=raptor_new_qname(&sax2->namespaces,
atts[i<<1], atts[(i<<1)+1],
(raptor_simple_message_handler)raptor_sax2_simple_error, sax2);
if(!attr) { /* failed - tidy up and return */
int j;
for (j=0; j < i; j++)
RAPTOR_FREE(raptor_qname, named_attrs[j]);
RAPTOR_FREE(raptor_qname_array, named_attrs);
goto fail;
}
named_attrs[offset++]=attr;
}
} /* end if ns_attributes_count */
if(named_attrs)
raptor_xml_element_set_attributes(xml_element,
named_attrs, ns_attributes_count);
raptor_xml_element_push(sax2, xml_element);
if(sax2->start_element_handler)
sax2->start_element_handler(sax2->user_data, xml_element);
if(xml_atts_copy) {
/* Restore passed in XML attributes, free the copy */
memcpy((void*)atts, xml_atts_copy, xml_atts_size);
RAPTOR_FREE(cstringpointer, xml_atts_copy);
}
return;
fail:
if(xml_atts_copy)
RAPTOR_FREE(cstringpointer, xml_atts_copy);
if(xml_base)
raptor_free_uri(xml_base);
if(xml_language)
RAPTOR_FREE(cstring, xml_language);
if(xml_element)
raptor_free_xml_element(xml_element);
}
/* end of an element */
void
raptor_sax2_end_element(void* user_data, const unsigned char *name)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
raptor_xml_element* xml_element;
#ifdef RAPTOR_XML_EXPAT
#ifdef EXPAT_UTF8_BOM_CRASH
sax2->tokens_count++;
#endif
#endif
xml_element=sax2->current_element;
if(xml_element) {
#ifdef RAPTOR_DEBUG_VERBOSE
fprintf(stderr, "\nraptor_rdfxml_end_element_handler: End ns-element: ");
raptor_qname_print(stderr, xml_element->name);
fputc('\n', stderr);
#endif
if(sax2->end_element_handler)
sax2->end_element_handler(sax2->user_data, xml_element);
}
raptor_namespaces_end_for_depth(&sax2->namespaces,
raptor_sax2_get_depth(sax2));
xml_element=raptor_xml_element_pop(sax2);
if(xml_element)
raptor_free_xml_element(xml_element);
raptor_sax2_dec_depth(sax2);
}
/* characters */
void
raptor_sax2_characters(void* user_data, const unsigned char *s, int len)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
if(sax2->characters_handler)
sax2->characters_handler(sax2->user_data, sax2->current_element, s, len);
}
/* like <![CDATA[...]> */
void
raptor_sax2_cdata(void* user_data, const unsigned char *s, int len)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
#ifdef RAPTOR_XML_EXPAT
#ifdef EXPAT_UTF8_BOM_CRASH
sax2->tokens_count++;
#endif
#endif
if(sax2->cdata_handler)
sax2->cdata_handler(sax2->user_data, sax2->current_element, s, len);
}
/* comment */
void
raptor_sax2_comment(void* user_data, const unsigned char *s)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
if(sax2->comment_handler)
sax2->comment_handler(sax2->user_data, sax2->current_element, s);
}
/* unparsed (NDATA) entity */
void
raptor_sax2_unparsed_entity_decl(void* user_data,
const unsigned char* entityName,
const unsigned char* base,
const unsigned char* systemId,
const unsigned char* publicId,
const unsigned char* notationName)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
if(sax2->unparsed_entity_decl_handler)
sax2->unparsed_entity_decl_handler(sax2->user_data,
entityName, base, systemId,
publicId, notationName);
}
/* external entity reference */
int
raptor_sax2_external_entity_ref(void* user_data,
const unsigned char* context,
const unsigned char* base,
const unsigned char* systemId,
const unsigned char* publicId)
{
raptor_sax2* sax2=(raptor_sax2*)user_data;
if(sax2->external_entity_ref_handler)
return sax2->external_entity_ref_handler(sax2->user_data,
context, base, systemId, publicId);
raptor_sax2_simple_error((void*)sax2,
"Failed to handle external entity reference with base %s systemId %s publicId %s",
(base ? (const char*)base : "(None)"),
systemId,
(publicId ? (const char*)publicId: "(None)"));
/* Failed to handle external entity reference */
return 0;
}
Reference in New Issue View Git Blame Copy Permalink