Redland
Dave Beckett
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Raptor RDF Parser Library - Release NotesRaptor 1.4.21 ChangesThis is a bug fix only release with no new features. New development has moved to raptor 2 where a planned ABI and API break is underway. Fixed Issues:
Parser changesN-Triples parser: Declare acceptance of text/plain mime type with q=0.1 RDFA parser (via librdfa): Updated to fix some buffer management problems when it was passed large blocks (4096 bytes or more), a few memory leaks and some other minor bugs. RDF/XML parser: Properly reset the ID-checking set at the start of each parse. Turtle parser: Allow \\ at the end of triple-quoted literals. Forbid '.'s in prefixes and qnames (follow specification). Properly count newlines inside the literals for error reporting. Serializer changesTurtle serializer: Forbid '.'s in prefixes and qnames (follow specification). Other ChangesUpdated
Raptor 1.4.20 ChangesThis is a bug fix only release with no new features. New development has moved to raptor 2 where a planned ABI and API break will happen. There may be preview releases of raptor 2 with 1.9.x numbering. Fixed Issues:
Parser Changes
GRDDL parser: Fix XML parser context resource leak if
RDFA parser (via librdfa): Update to latest librdfa GIT sources with head
a438ce68a40e04b399ec2b2c613d0c867d9315c7 Added three unapproved RDFa tests 0172, 0173 and 0174 to cover the fixes above. Serializer Changes
Turtle serializer:
Applied scalability patch from Chris Cannam.
This switches the serializer to use a Other ChangesIf cross compiling, check for Use Use
Raptor 1.4.19 Changes
Fixed Issues:
Parser Changes
Guess parser: return name of guessed parser not 'guess'. N-Triples parser:
Produce error messages when raptor_new_uri() fails. RDFa parser:
Fix problem when there is a subject and predicate specified on an
element, but no child nodes for the object literal using
latest librdfa GIT source with head
2ddcb3f9e010d0b3d9ee546e807539be5da1b14a RSS tag soup parser:
Huge internal changes: RDF/XML Parser:
Adjust predicate_type when removing ordinal identifier type from predicate. Serializer ChangesAtom 1.0 serializer: Now tested and takes more care to try to generate valid Atom 1.0 Turtle serializer:
Validate XSD integer, decimal and double literal
output. Emit special short forms only if the whole literal value is
consumed by RSS serializer:
Fixes for g++ XML Support ChangesRemoved generic calls to Use context-specific libslt security configuration to avoid
calling generic call Make libxml SAX2 structured errors register parser-specific
handler function In Other ChangesWin32 portability fixes from Lou Sakey:
Internal ChangesMore internal changes to be more resiliant after allocation failure (Lauri Aalto) Reorganised tests in source tree to pull out specific directories for RDF/XML, Turtle, etc. Use a DJ Bernstein hash to replace a linked list for storing a
stack of namespaces. This makes turtle parsing with lots of
namespaces (100s) much faster. Based on the initial patch in the bug. Use new internal
More fixes for compiling with C++ Move some more static data as constant to enable more efficient compilation - moves to data segment of object binary. Use memmove for overlapping copy, not memcpy when doing relative URI resolving. Raptor V2 Preparation ChangesLots of internal changes were made by Lauri Aalto preparing for
Raptor V2 to fully attach all static data and config to a new
NOTE: The method names here are illustrative of the final V2 names but are not confirmed - These functions are not supported in the 1.4.x series. Some methods will still be altered for fields and (raptor_world) parameters. All constructors should have it as a parameter. All methods will not have them (so for example, all the URI methods named _v2 will lose the world parameter and just have the URI parameter - but that is also because the URI handler/context part will go into raptor_world in V2) To use the unsupported and experimental V2
functions, define Added Added raptor world class constructor
Added world class destructor:
Added new V2 methods:
void raptor_world_set_libxslt_security_preferences(raptor_world *world,
void *security_preferences)
void raptor_world_set_libxml_flags(raptor_world *world, int flags)
void raptor_error_handlers_init_v2(raptor_world* world,
raptor_error_handlers* error_handlers);
Added V2 methods that are versions of existing methods, named with _v2 suffix:
int raptor_parsers_enumerate_v2(raptor_world* world,
const unsigned int counter, const char **name, const char **label)
int raptor_syntax_name_check_v2(raptor_world* world, const char *name);
void raptor_print_locator_v2(raptor_world* world, FILE *stream,
raptor_locator* locator);
const char *raptor_locator_uri_v2(raptor_world* world,
raptor_locator *locator);
int raptor_features_enumerate_v2(raptor_world* world,
const raptor_feature feature, const char **name,
raptor_uri **uri, const char **label);
int raptor_serializers_enumerate_v2(raptor_world* world,
const unsigned int counter, const char **name, const char **label,
const char **mime_type, const unsigned char **uri_string);
int raptor_serializer_syntax_name_check_v2(raptor_world* world,
const char *name);
int raptor_serializer_features_enumerate_v2(raptor_world* world,
const raptor_feature feature, const char **name, raptor_uri **uri,
const char **label);
Added world pointer to raptor_identifier object Added V2 identifier class constructor:
raptor_identifier* raptor_new_identifier_v2(raptor_world* world,
raptor_identifier_type type, raptor_uri *uri,
raptor_uri_source uri_source, const unsigned char *id,
const unsigned char *literal, raptor_uri *literal_datatype,
const unsigned char *literal_language);
Added V2 parser class method:
raptor_parser* raptor_new_parser_for_content_v2(raptor_world* world,
raptor_uri *uri, const char *mime_type, const unsigned char *buffer,
size_t len, const unsigned char *identifier)
raptor_world* raptor_parser_get_world(raptor_parser* rdf_parser);
Added V2 serializer class constructor and method:
raptor_serializer* raptor_new_serializer_v2(raptor_world* world,
const char *name)
raptor_world* raptor_serializer_get_world(raptor_serializer* rdf_serializer)
Added V2 statement class Added V2 statement class methods:
void raptor_print_statement_v2(const raptor_statement_v2 * statement,
FILE *stream);
unsigned char* raptor_statement_part_as_counted_string_v2(raptor_world* world,
const void *term, raptor_identifier_type type,
raptor_uri* literal_datatype, const unsigned char *literal_language,
size_t* len_p);
unsigned char* raptor_statement_part_as_string_v2(raptor_world* world,
const void *term, raptor_identifier_type type,
raptor_uri* literal_datatype, const unsigned char *literal_language);
int raptor_statement_compare_v2(const raptor_statement_v2 *s1,
const raptor_statement_v2 *s2);
Added V2 uri class methods:
unsigned char* raptor_uri_as_counted_string(raptor_uri *uri, size_t* len_p);
raptor_uri* raptor_new_uri_v2(raptor_world* world,
const unsigned char *uri_string);
raptor_uri* raptor_new_uri_from_uri_local_name_v2(raptor_world* world,
raptor_uri *uri, const unsigned char *local_name);
raptor_uri* raptor_new_uri_relative_to_base_v2(raptor_world* world,
raptor_uri *base_uri, const unsigned char *uri_string);
raptor_uri* raptor_new_uri_from_id_v2(raptor_world* world,
raptor_uri *base_uri, const unsigned char *id);
raptor_uri* raptor_new_uri_for_rdf_concept_v2(raptor_world* world,
const char *name);
void raptor_free_uri_v2(raptor_world* world, raptor_uri *uri);
int raptor_uri_equals_v2(raptor_world* world, raptor_uri* uri1,
raptor_uri* uri2);
int raptor_uri_compare_v2(raptor_world* world, raptor_uri* uri1,
raptor_uri* uri2);
raptor_uri* raptor_uri_copy_v2(raptor_world* world, raptor_uri *uri);
unsigned char* raptor_uri_as_string_v2(raptor_world* world, raptor_uri *uri);
unsigned char* raptor_uri_as_counted_string_v2(raptor_world* world,
raptor_uri *uri, size_t* len_p);
raptor_uri* raptor_new_uri_for_xmlbase_v2(raptor_world* world,
raptor_uri* old_uri);
raptor_uri* raptor_new_uri_for_retrieval(raptor_uri* old_uri);
raptor_uri* raptor_new_uri_for_retrieval_v2(raptor_world* world,
raptor_uri* old_uri);
raptor_uri* raptor_new_uri_for_xmlbase_v2(raptor_world* world,
raptor_uri* old_uri);
raptor_uri* raptor_new_uri_for_retrieval_v2(raptor_world* world,
raptor_uri* old_uri);
unsigned char* raptor_uri_to_relative_counted_uri_string_v2(raptor_world* world,
raptor_uri *base_uri, raptor_uri *reference_uri, size_t *length_p);
unsigned char* raptor_uri_to_relative_uri_string_v2(raptor_world* world,
raptor_uri *base_uri, raptor_uri *reference_uri);
void raptor_uri_print_v2(raptor_world* world,
const raptor_uri* uri, FILE *stream);
unsigned char* raptor_uri_to_counted_string_v2(raptor_world* world,
raptor_uri *uri, size_t *len_p);
void raptor_uri_set_handler_v2(raptor_world* world,
const raptor_uri_handler *handler, void *context);
void raptor_uri_get_handler_v2(raptor_world* world,
const raptor_uri_handler **handler, void **context);
Added V2 www class methods:
raptor_www *raptor_www_new_with_connection_v2(raptor_world* world,
void* connection);
Added V2 qname class methods:
raptor_qname* raptor_new_qname_from_namespace_local_name_v2(raptor_world* world,
raptor_namespace *ns, const unsigned char *local_name,
const unsigned char *value);
Added V2 namespace class methods:
raptor_namespace_stack* raptor_new_namespaces_v2(raptor_world* world,
raptor_simple_message_handler error_handler, void *error_data, int defaults);
int raptor_namespaces_init_v2(raptor_world* world,
raptor_namespace_stack *nstack,
raptor_simple_message_handler error_handler, void *error_data,
int defaults);
Added V2 sequence class typedefs and methods:
typedef void (raptor_sequence_free_handler_v2(void* context, void* object));
typedef void (raptor_sequence_print_handler_v2(void *context, void *object,
FILE *fh));
raptor_sequence* raptor_new_sequence_v2(raptor_sequence_free_handler_v2* free_handler,
raptor_sequence_print_handler_v2* print_handler, void* handler_context);
void raptor_sequence_set_print_handler_v2(raptor_sequence *seq,
raptor_sequence_print_handler_v2 *print_handler);
Added V2 iostream class methods:
int raptor_iostream_write_uri_v2(raptor_world* world,
raptor_iostream *iostr, raptor_uri *uri);
void raptor_iostream_write_statement_ntriples_v2(raptor_world* world,
raptor_iostream* iostr, const raptor_statement *statement);
Added V2 xml writer class methods:
raptor_xml_writer* raptor_new_xml_writer_v2(raptor_world* world,
raptor_namespace_stack *nstack, raptor_iostream* iostr,
raptor_simple_message_handler error_handler, void *error_data,
int canonicalize);
int raptor_xml_writer_features_enumerate_v2(raptor_world* world,
const raptor_feature feature, const char **name, raptor_uri **uri,
const char **label);
Raptor 1.4.18 ChangesFixed Issues:
Parser ChangesA new
RDFa
parser was added (name The RDFa test suite was added to the test and (via librdfa) Raptor passes all but 4 tests which fail due to different output xmlns attribute ordering (which does not matter to XML parsers). Serializer ChangesAdded new function
A new Atom Syndication Format 1.0 (RFC 4287) serializer was added (name RSS 1.0 serializer
Turtle serializer now respects the Abbreviated serializers (RDF/XML Abbrev and Turtle) now remove duplicate triples. Added feature Added QName Class ChangesAdded
Sequence Class Changes
Added URI Class Changes
XML Writer Class ChangesXML Writer allows adding newlines via
Added Other ChangesMany more resiliance checks were added. Removed all calls to abort() in code on fatal errors. This requires using setjmp and longjmp inside parsers built with flex and bison. The Turtle writer may optionally generate @base depending on flags. (This is used by Turtle serializer to handle the writeBaseURI feature) Tidied error messages for raptor_init() and raptor_finish() use a reference count to ensure initialising and terminating happen at most once each. Raptor 1.4.17 ChangesThe main changes to this release are: Added two new JSON serializers: resource-centric 'json' (Talis RDF/JSON) and triple-centric 'json-triples'. Made I/O Stream class Added a new public SAX2 API class Added new public error handlers structure
Several other API changes, fixes and improvements were made. Fixed Issues: I/O Stream class changesMade I/O Stream class
Added new write I/O Stream method
Serializer Class ChangesAdded two new JSON serializers (Dave B):
Added new serializer features for the JSON serializers (DaveB):
Example of using the resource-centric serializer while defining a callback:
$ rapper -q -o json -f jsonCallback=foo http://librdf.org/raptor/raptor.rdf
foo(
{
"http://librdf.org/raptor/#raptor" : {
"http://usefulinc.com/ns/doap#description" : [ {
...
Statement Class ChangesAdded Parser Class ChangesAdded new parser features to control HTTP headers in
web requests (Dave B, based on a patch in the bug):
Turtle parser:
QName Class ChangesAdded new methods SAX2 Class ChangesAdded new public SAX2 API class
Serializer Class ChangesAbbreviated serializers (RDF/XML-Abbrev and Turtle):
Turtle serializer:
URI Class ChangesUpdate URI resolving for RFC3986 changes (Dave B) WWW Class ChangesAdded new method XML Class ChangesAdded new method Portability and Resilience ChangesPass on error failures in parser and serializer factory construction. (Lauri) Abbreviated serializers (RDF/XML-abbrev and Turtle): low memory and allocation failure fixes. (Lauri) Altered API function signatures of
Portability fixes for RAPTOR_API and other macros. (Lauri) Removal of many sets of writable static data in N-Triples parser, URI class, Unicode NFC code, libxml support, Turtle writer and XML writer. (Lauri) Portability fixes for Turtle/N3 parsers and serializers, RDF/XML_Abbrev serializer: many low memory fixes and better out of memory errors. (Lauri) Other ChangesRewrote internal error log functions to use new error handlers structures and simplify the calls. (Dave B) Expanded internal Updated
Raptor 1.4.16 ChangesThe main changes to this release are: Provide 100% support for the GRDDL W3C Recommendation of 2007-09-11. The
Turtle
parser and serializer were updated to support
The Turtle and RDF/XML serializers had performance improvements for large graphs. Added a TRiG Parser based on Turtle with named graph support. Several other API changes, fixes and improvements were made. Fixed Issues:
Namespaces Class Changes
Parser Class Changes
Added These were added the GRDDL parser:
XML Element Class ChangesAdded
Unicode Class ChangesDefined a new URI Class ChangesAdded WWW Class Changes
Added
Added
Added Parser ChangesThe GRDDL parser/processor was substantially updated and now supports 100% of the Gleaning Resource Descriptions from Dialects of Languages (GRDDL) syntax, W3C Recommendation of 2007-09-11:
it also:
RDF/XML parser recognising was updated to just the start of the document for guessing if it should handle content and to try to avoid html URLs. RSS Tag soup parser recognising was updated to accept with the string 'feed' in the identifier. TRiG Parser was added based on the Turtle parser, adding named
graphs. It returns name graph URis via a callback set with new API
call Turtle parser added Serializer ChangesTurtle serialiser changes:
RDF/XML serialiser was changed to emit a legal empty RDF/XML document when no triples are serialised and to skip emitting statements with bad predicate uris rather than returning an error. RDF/XML Abbrev serialiser was changed to use an AVL tree rather than sequence for significant performance improvement for large serialisations.
|
| Atom 1.0 term | Original term |
|---|---|
atom:content | rss:description |
atom:id | rss:link |
atom:published | dc:date |
atom:rights | dc:rights |
atom:title | rss:title |
Apply the in-scope base URI (such as from xml:base)
to atom 1.0 fields that take URI values:
atom:id, atom:icon and atom:logo.
Added optional date parsing code to turn XML RSS date fields into ISO format ones, suitable for Atom and XML schema datatypes format. Will use library parsedate code from curl or INN if available.
XML RSS field pubDate is now turned into Dublin Core
dc:date field in the ISO format.
XML RSS field content is turned into
content:encoded in RDF triples on output with
escaping.
Updated to support Turtle version 2006-01-02 (announcement).
Switch qname, blank node and prefix definitions to SPARQL ones.
Check for illegal not-hexadecimal \u and \U escape values.
Fix greedy matching of long literals ("""....""") that ended on the last """ found rather than the first.
Added double and decimal constants.
Added optional +- sign to all numeric constants.
Allow \" escape inside long strings.
Take care to reset the generated raptor_statement
language and datatype fields when not used.
Added a new Atom 1.0 serializer (name atom) by parameterising the RSS 1.0 serializer.
Added a new Adobe XMP compatible serializer (name rdfxml-xmp) by parameterising the RDF/XML Abbreviated serializer. Patch provided by Sid Steward.
All serializers can be chosen at configure time from
those available using configure option --enable-serializers.
The RSS parser and serializer can now be independently enabled or disabled. The RSS serializer no longer requires an XML parser.
A new XML Writer feature
RAPTOR_FEATURE_WRITER_XML_VERSION was added to allow
chosing XML 1.0 (value 10) or XML 1.1 output (value 11). This
feature is also accepted by serializers as an option and used by the
RDF/XML and RDF/XML-Abbrev serializers.
A new XML Writer feature
RAPTOR_FEATURE_WRITER_XML_DECLARATION was added to allow
omitting the XML declaration (default true).
Added functions raptor_xml_any_escape_string()
and raptor_iostream_write_xml_any_escaped_string()
which take an XML version. The XML 1.0 functions give errors
when attempting to write #x1-#x1f (excluding #x9, #xA, #xD) or #x7F.
Added a new serializer using the Atom 1.0 format and namespace. This reads RDF triples in the RSS 1.0 model, along with any additional atom 1.0 properties and serializes an Atom 1.0 feed file.
Added a new serializer writing RDF/XML in the profile used by
Adobe XMP. Note that this does require RDF triples to be used in a
certain style; for example all triple subjects are the "current
documment" giving rdf:about="".
Fix a bug when adding a default path of / to a URI
in functions raptor_new_uri_for_xmlbase()
and raptor_new_uri_for_retrieval().
(Bug #0000045)
raptor_uri_equals was altered to accept NULL pointers, which do not compare equal to a non-NULL URI. NULL does equal NULL.
The internal SAX2 class was extensively changed so that remaining interdependencies with the RDF/XML parser were removed and it can now be re-used for other syntaxes cleanly. Several functions were modified or added.
Removed old and hardly-tested internal support for XML entity resolution (libxml only).
Various fixes for GCC 4 warnings.
Fix a couple of crashes in the RSS tag soup parser / serializer (Dave Beckett, Suzan Foster).
configure now looks for the
libxslt/xslt.h header as well as the
libxslt library and disables XSLT and GRDDL support it
if is missing. This catches systems with the libraries without
headers as has happened on some OSX versions.
In serializers rdfxml and rdfxml-abbrev, report failure to serialize to RDF/XML if the predicate URI is not absolute.
Added --with-xslt-config configure option
Added a new parser for
Gleaning Resource Descriptions from Dialects of Languages (GRDDL)
which allows reading XHTML and XML as RDF triples by using profiles
in the document that declare XSLT transforms from the XHTML/XML
content into RDF/XML which is the RDF content. It does not
support all the GRDDL styles, for example
dataview:namespaceTransformation,
or perform recursive transformations.
The turtle parser now accepts """long literals"""
XML writer feature support were added in 1.4.5 and not documented.
The new functions are:
raptor_xml_writer_features_enumerate,
raptor_xml_writer_set_feature,
raptor_xml_writer_set_feature_string,
raptor_xml_writer_get_feature and
raptor_xml_writer_get_feature_string.
The three XML writer features added are
\fBRAPTOR_FEATURE_WRITER_AUTO_INDENT\fR with boolean value (default true)
to auto-indent the XML,
\fBRAPTOR_FEATURE_WRITER_AUTO_EMPTY\fR with boolean value (default true)
to automatically generate empty elements if a start/end element sequence
has no content and
\fBRAPTOR_FEATURE_WRITER_INDENT_WIDTH\fR with an integer value (default 2)
to set the indenting level for the XML.
New build configuration and portability fixes for win32 (John Barstow)
Portability fixes for win32 - added
SIZEOF_UNSIGNED_SHORT (Dave Viner, others)
Added a signing memory debugging system to aid checking when
raptor-allocated memory is freed in another library or vice-versa
enabled by --with-memory-signing configure option
(defaults to on in maintainer mode).
Fixed a few internal malloc/frees to use RAPTOR_MALLOC / RAPTOR_FREE so that the above signed memory system worked.
RDF/XML serializer:
Use the maximal name when splitting a predicate.
Turn datatyped literals that are rdf:XMLLiteral into inline XML with
rdf:parseType="Literal" rather than XML-escaped.
RDF/XML abbreviated serializer:
Fix a crash when there is a NULL base URI.
Use the maximal name when splitting a predicate.
Turn datatyped literals that are rdf:XMLLiteral into inline XML with
rdf:parseType="Literal" rather than XML-escaped.
RSS tag soup parser:
Fix crash with unexpected use of alternate attribute.
Update from Suzan Foster to reflect the latest status of the
enclosure vocabulary and allow multiple common items and fields.
RSS 1.0 serializer: Added RSS enclosures serializing.
grapper example GTK program now stores the window
width and height using gconf2.
Added a new RDF/XML with abbreviations serializer
rdfxml-abbrev written by Steve Shepard which handles
several of the abbreviations specified by the
RDF/XML Syntax Specification (Revised)
W3C Recommendation. It is suitable for writing small documents as
there are known scaling issues.
The RSS tag soup parser was updated to work better when there is no base URI given. It also now supports reading the RSS 1.1 format and turning it into RSS 1.0 model triples.
Deprecated raptor_ntriples_string_as_utf8_string as
rather too internal to be useful, since it only works with a parser.
More fixes to work around the broken libxml2 on Apple OSX 10.3.x with inconsistent shared libraries / headers.
Experimental and incomplete Notation 3 parser - updated to match changes to Turtle. CVS changes only, not enabled in standard builds.
Make the RSS tag soup parser handle RSS 0.9 namespace elements by turning them into RSS 1.0.
Fix a couple of crashes in the RSS 1.0 serialiser when no base URI is used.
Make raptor_uri_to_relative_counted_uri_string
work when the base or reference URI have no paths such as like
http://example.org
Added portability fixes for Win32 to get Raptor 1.4.3 building with MS Visual Studio using expat and libcurl. The RAPTOR_INTERNAL define was moved to the build configuration and defines added for integral type sizes. Patch from Dave Viner (dviner at apache dot org).
A release with the major new feature of an XML writer API. This is now used along with a new supporting XML element class to improve the existing RDF/XML serializer and to provide a new RSS 1.0 serializer.
This API it is also used by the next release of Rasqal to provide serializing of query results to XML.
The new raptor_xml_writer class functions added are:
raptor_new_xml_writer (constructor),
raptor_free_xml_writer (destructor),
raptor_xml_writer_empty_element,
raptor_xml_writer_start_element,
raptor_xml_writer_end_element,
raptor_xml_writer_cdata,
raptor_xml_writer_cdata_counted,
raptor_xml_writer_raw,
raptor_xml_writer_raw_counted,
raptor_xml_writer_comment and
raptor_xml_writer_comment_counted.
The new raptor_xml_element class functions added are:
raptor_new_xml_element (constructor),
raptor_free_xml_element (destructor),
raptor_xml_element_get_name,
raptor_xml_element_set_attributes,
raptor_xml_element_declare_namespace and
raptor_iostream_write_xml_element.
RSS tag soup parser now works with older libxml2s (2.5.10+), including the one shipped with some Apple OSX versions that has an inconsistent header file and library.
RSS tag soup parser recognises/scores more common XML RSS file names.
RSS tag soup parser turns XML RSS
<guid isPermaLink="true">val</guid>
into RDF/XML form <guid rdf:resource="val"/>, leaving
the non isPermaLink form to be a literal value.
A bug was found in libxml2 that causes double expanding of XML entities in RDF/XML. This has been reported but cannot be worked around from raptor. The expat XML parser can be used as an alternative, as it does not have this problem. A test was added for this bug but it will not cause the test suite ('make check') to fail.
Added additional Turtle parser tests that cover Notation 3 syntax that is not part of the Turtle language.
Added
raptor_parser_set_feature_string and
raptor_parser_get_feature_string
methods to set/get string feature values.
Added feature relative_uris for serializers. This
is used by the RDF/XML serializer and enabled by default.
Added feature start_uri for serializers with a string
value to set the start URI for serializing. Not used at present.
Added new methods raptor_serializer_features_enumerate
to list serializer features and functions to set/get serializer
feature integer or strings values:
raptor_serializer_set_feature,
raptor_serializer_get_feature,
raptor_serializer_set_feature_string and
raptor_serializer_get_feature_string.
Added raptor_serialize_set_namespace to allow user
declaration of prefix/URI namespaces pairs as serializing hints.
the RDF/XML serializer was improved using the new XML Writer class so it now uses any user-declared namespace hints in it's output and emits relative URIs whenever possible. The latter was provided by a patch from René Puls.
A new RSS 1.0 serializer was added, using the new XML Writer class and using the same structures, classes and properties as the RSS tag soup parser.
Added relative URI generating code from a patch written by René Puls
and provide this with two new methods
raptor_uri_to_relative_uri_string and
raptor_uri_to_relative_counted_uri_string.
Added raptor_uri_print to print a URI to a file handle.
Added methods raptor_uri_to_string and
raptor_uri_to_counted_string to return a URI as newly
allocated strings.
Many classes gained methods to write to iostreams, supporting the
new XML Writer class functionality. The added methods are:
raptor_iostream_write_namespace,
raptor_iostream_write_ntriples_string,
raptor_iostream_write_qname,
raptor_iostream_write_statement_ntriples,
raptor_iostream_write_stringbuffer,
raptor_iostream_write_xml_element and
raptor_iostream_write_xml_escaped_string.
Added raptor_namespace_copy copy
constructor and raptor_new_namespace_from_uri
constructor to build a namespace from a raptor_uri object.
Added utility function raptor_new_namespace_parts_from_string
to decode syntax of the form
xmlns:prefix="uri"
into prefix and uri string pairs.
Added raptor_namespaces_find_namespace_by_uri method
for namespace stack to find a declared namespace by URI. This
complements raptor_namespaces_find_namespace which
already provides searching by prefix.
Added several methods for checking characters forming
parts of XML 1.0 or XML 1.1 names:
raptor_unicode_is_xml10_namestartchar,
raptor_unicode_is_xml11_namestartchar,
raptor_unicode_is_xml10_namechar and
raptor_unicode_is_xml11_namechar.
Added a function raptor_utf8_check to check that a
string is legal UTF-8 and all the encoded Unicode characters are in
the range U+0 <= character <= U+10FFFF
Added a function raptor_xml_name_check to check that
a string is a legal XML name (1.0 or 1.1) as well as legal UTF-8.
Feature support: Added raptor_feature_value_type to
determine value of a feature - either integer (most) or string.
XML QName class: Added raptor_qname_copy copy
constructor.
Sequence class: Added raptor_sequence_join
to join two sequences of items, leaving one empty.
Statement class: Added raptor_statement_copy copy
constructor and raptor_free_statement destructor.
Previously these were internal to raptor.
The rapper utility was modified to add a feature form:
-f xmlns:PREFIX="URI"
allowing the setting of output serializer namespaces.
The namespace URI string constants exported by raptor are now of type unsigned char*.
Make raptor_xml_escape_string fail correctly when
given bad UTF-8 to escape.
Fixed a buffer overrun in decoding a URI scheme in
raptor_uri constructors such as
raptor_new_uri.
Fixed a crash in RSS enclosures crash when the url
attribute seen on a non-<enclosure> element
raptor_xml_escape_string return value has changed to
be an int, returning <0 on failure. This allows the empty string
encoding an empty string case to work and be distinguished from an
error.
A release with the major new feature of providing serializing of RDF triples to syntaxes. It also added a new support class for I/O streams and had other minor fixes.
Added a Raptor Serializer class (raptor_serializer)
with similar style to Parser (raptor_parser). Two
serializers are provided, for RDF/XML and N-Triples. The serializing
can be done to files, C FILE* or to strings. The
raptor_iostream class that provides this also allows writing
to any other form by creating a custom iostream.
The new raptor_serializer class functions added are:
raptor_serializers_enumerate,
raptor_serializer_syntax_name_check,
raptor_new_serializer,
raptor_free_serializer,
raptor_serialize_start,
raptor_serialize_start_to_filename,
raptor_serialize_start_to_string,
raptor_serialize_start_to_file_handle,
raptor_serialize_statement,
raptor_serialize_end,
raptor_serializer_get_iostream,
raptor_serializer_set_error_handler,
raptor_serializer_set_warning_handler and
raptor_serializer_get_locator
Added a Raptor I/O stream abstraction in
raptor_iostream class to support serializing of RDF to
multiple output streams such as to filenames, to C standard I/O
FILE* handles and to strings especially for
cross-language use. A raptor_iostream_handler can
be used to construct a user-defined iostream.
The new raptor_iostream class functions added are:
raptor_new_iostream_from_handler,
raptor_new_iostream_to_sink,
raptor_new_iostream_to_filename,
raptor_new_iostream_to_file_handle,
raptor_new_iostream_to_string,
raptor_free_iostream,
raptor_iostream_write_bytes,
raptor_iostream_write_byte,
raptor_iostream_write_end,
raptor_iostream_write_string,
raptor_iostream_write_counted_string,
raptor_iostream_get_bytes_written_count,
raptor_iostream_write_decimal and
raptor_iostream_format_hexadecimal.
The rapper utility was modified to use serializer
class so that the output formats supported are now N-Triples
(-o ntriples) - the default, and RDF/XML (-o
rdfxml).
Raptor now exports more static namespace URI strings for
general application use:
raptor_xml_namespace_uri,
raptor_rdf_namespace_uri,
raptor_rdf_schema_namespace_uri,
raptor_xmlschema_datatypes_namespace_uri,
raptor_owl_namespace_uri,
and the length
raptor_rdf_namespace_uri_len.
The raptor_stringbuffer class gained a new method
raptor_stringbuffer_copy_to_string
which allows efficient copy-out of a constructed string.
The raptor_www class gained a new method
raptor_www_fetch_to_string to allow retrieving of
web content as a single string.
RSS tag soup parser gained support for generating triples for enclosures, after a patch from Suzan Foster. Changes made include correcting the enclosures namespace and tidying some memory leaks.
A release with major improvements along with several minor fixes.
Raptor's License was changed from LGPL 2.1/MPL 1.1 to LGPL 2.1/Apache 2
Thanks to Chris Pointon for several patches to make Raptor easier to build under Win32 which were applied, with some slight modifications.
Increased WWW content retrieval buffer size from 256 bytes to 4K since this was causing problems for even moderate size documents.
After testing raptor on a very large RDF/XML file with many
rdf:ID values, the check for duplicate values was found
to be inefficient in memory and slow. The implementation was
improved to be more memory efficient and a new parser feature
check_rdf_id was added to disable checking (default is
enabled).
Added a new Unicode NFC checker to replace the functionality
formally available by calling the GNOME glib function
g_utf8_normalize. This new checker is done via several tables and
adds approximately 50K to the object size of the library when
compiled on x86. This code and tables can be disabled with configure
option --disable-nfc-check causing all checks to
succeed.
Fix the exporting of
raptor_xml_literal_datatype_uri_string and
raptor_xml_literal_datatype_uri_string_len as constants
for use by applications. Previously raptor.h wasn't doing this
correctly.
Added raptor_calloc_memory for allocating zeroed
memory inside raptor, for use by applications passing memory in/out
of raptor.
Added a new configure option --enable-parsers to
allow the selection of the required RDF parsers from any of those
supported (RDF/XML, Turtle, N-Triples, RSS tag soup).
Reorganised the sources to split parsing support from RDF/XML to support compiling without this parser.
Updated the RSS Tag Soup parser to start to handle the Atom 0.3 currently being standardised by the IETF Atom Publishing Format and Protocol working group.
Altered the Turtle parser to work with large source documents that exceeded bison limits. Thanks to Geoff Chappell for providing a fix for this.
Rewrote the URI parsing to create an internal structure and improved the relative URI resolving in preparation for future work such as potentially supporting URI canonicalisation such as proposed to be used by Atom.
A release with some minor fixes.
Added a new configure option
--with-expat-source=DIR
to allow the use of external expat source trees in either the old or
newer directory structure style. (Patch from Mark Smith).
Added raptor_alloc_memory for handlers that need to
allocate memory in the same heap as raptor uses for
raptor_free_memory. This is mostly useful for allocating
memory that is freed by raptor in error, ID and statement handlers
on win32 which has separate heaps for different DLLs.
A bug was fixed where errors which happened when fetching WWW content were always printed to stderr. They are now passed to the main error routines which allows applications to retrieve them.
Accessor functions were added for parts of the public
raptor_locator structure which makes it possible to get
structured error information from language bindings via Redland
(Patch from Edd Dumbill). The new functions are:
int raptor_locator_line(raptor_locator *locator);int raptor_locator_column(raptor_locator *locator);int raptor_locator_byte(raptor_locator *locator);const char * raptor_locator_file(raptor_locator *locator);const char * raptor_locator_uri(raptor_locator *locator);The Unicode Normal Form C (NFC) checking via the GNOME glib
library function g_utf8_normalize is broken, comparing
the data it says is failed against other NFC checkers. It is also
slower than need be since it is doing full normalizing rather than
just checking for NFC, and adds a rather large dependency for just
one function. A new portable checker will be added in a later
release.
A release primarily to fix some win32 and portability issues.
raptor.h now includes stdarg.h
Corrected the raptor_print_statement declaration in
raptor.h for the argument statement to have one less 'const' which
matches the actual code.
Made several portability fixes for compiling natively on win32 which doesn't quite do POSIX or C99.
Changed the support for file: URIs and converting to and from
filenames. It now %-escapes spaces and % characters on conversion
to and from filenames with
raptor_uri_uri_string_to_filename,
raptor_uri_uri_string_to_filename_fragment
and
raptor_uri_filename_to_uri_string.
For Win32, more tests were added and the
format of URIs supported corrected to use the file:///c:
form rather than file://c|/
URIs that resolve to directories now return an error when lstat is available to check.
The Turtle parser was updated to only allow language with non-datatyped literals, allow a '_' immediately after a ':' in qnames and to make a bare ':' qname work correctly.
The Turtle parser was fixed to re-initialise correctly when performing multiple parsings. The other parsers already did this correctly.
Added a warning to the RDF/XML parser for unknown
rdf:parseType values, when parsing in lax mode - which
is the default. It now tells the user when the parsing is working as
'Literal' mode by finding an unknown value. This is controlled by a
new parser feature warn_other_parsetypes which is default set true
in lax mode. Parser modes are controlled by the
raptor_set_parser_strict method.
A release primarily to provide support for the new Rasqal RDF query library but with some new features and fixes.
Added a new constructor
raptor_new_parser_for_content to guess the parser to use
from hints in URIs or content, using a new utility function
raptor_guess_parser_name.
Additional checks were added to the RDF/XML parser for RDF-namespaced names in element and attributes and if they are forbidden giving an error otherwise if unknown, giving a warning.
The
Turtle
parser was updated to correct the collections syntax, allow '-' in
names and QNames and to add integer literals. This parser now correctly
uses raptor_generate_id when a blank identifier name is
needed.
Completed parser feature support by adding raptor_get_feature,
raptor_feature_from_uri, and
raptor_features_enumerate to get values and enable
discovery of supported features at run time.
raptor_set_feature was changed to give return a success
value
Added a new method raptor_get_mime_type to get the
MIME type of the syntax for a parser
raptor_parse_uri_with_connection (which is called by
raptor_parse_uri) now sets the HTTP Accept:
header to the MIME type of the parser in WWW requests using the new
raptor_www_set_http_accept().
rapper changesAdded options -f/--feature for setting
features and -g/--guess for guessing syntax
from some content or identifiers. See rapper(1)
for all rapper options.
Added raptor_syntax_name_check to check for valid
syntax language names.
Added raptor_free_memory to free memory returned by
raptor functions.
Added Unicode utility functions raptor_unicode_char_to_utf8 and
raptor_utf8_to_unicode_char.
Exported URI string raptor_xml_literal_datatype_uri_string.
Deprecated raptor_print_statement_detailed always
intended to be internal.
Added support to set the HTTP Accept: header for curl
and libxml2 when retrieving HTTP content by the new
raptor_www_set_http_accept method.
Added a utility class raptor_sequence providing
simple sequences that can handle stacks and queues
Added a utility class raptor_stringbuffer
for constructing strings from substrings appended or prepended.
Release notes for 1.2.0 and earlier are in the NEWS page or ChangeLog