
                Redland RDF Application Framework - To Do list

   See the [1]web site version for the up-to-date list.

Bugs, Features, Requests For Enhancement

   In no real order. Help wanted.
     * RFE: model class method to load into model with context
     * RFE: model class method to a remove/load into model for some context
     * Initialise the default genid base in librdf_new_world with something
       more fine-grained than seconds. Add some microseconds digits
     * remove "raptor" parser name in any examples, replace with syntax names
       such as "rdfxml"
     * Docs:  it  was hard to find the legal (parser) feature URIs in the
       documentation, or what values to use.
     * RFE: consider how to add parser guessing (via raptor) into the redland
       parser API
     * Documentation: describe the redland features available per class
     * RFE: add user mappings from URIs to namespace aliases to the serializer
     * RFE: The parser should be able to adjust error and warning actions,
       stopping  immediately  or  ignoring them by features. Document the
       defaults.
     * RFE: Add node.as_sha1 easy digest methods for literal nodes
     * RFE: return serialized models to syntax as strings
     * RFE: model.parseString(format, "string"), model.parseURI(format, URI,
       baseURI=URI)  creating and destroying temporary parser objects for
       format. Means no need to care about parser class if you just want simple
       things. Similarly for model.serialize() and Serializer class, however
       take care with serialise() method. Better as model.load(), model.save()
       or write()?
     * Update the RDF/RDFS terms/labels for the latest RDF Schema revision
     * in-memory storage uses more memory than needed
     * defensive code - check object types are correct by adding magic fields
       to start of all objects
     * Consider an AVL-tree in-memory store ([2]libavl)
     * Docs: note that compiling redland may also build raptor and rasqal, if
       they are needed
     * Document the storage constructor hash options under the main class
     * RFE: make add_statement method on model take URIs
     * Add arcs_in/arcs_out model methods
     * Add container class for manipulating RDF containers - Seq, Bag, Alt, ...
     * Add #ifdef WIN32 around parts including the config file and create a
       win32 build
     * If LGPL/Apache license, include compatible code OR add separate package?
     * Write a C++ interface
     * Provide any necessary support for RDF Schema (fast rdf:type lookups)
     * Write some better example code
     * Write a quickstart / howto document
     * Split the header files into internal / user ones. Maybe generate part of
       librdf.h automatically to make a 1-header file system.
     * Make API docbook sgml generate decent PostScript / PDF output
     * Fix the URI hash mechanism - currently stores URI/pointer pairs in hash
       - wrong
     * The library does not do file locking on e.g. DB files
     * For IRIX (and others?), try also linking with -lpthreads when testing
       for working Berkeley DB
     * String encoding - needs iconv posix function and/or Unicode library.
       Some utility functions have been written for UTF-8 to/from ISO Latin-1.

   (Excluding issues near FIXMEs in the source)

Done

   The most recent changes are at the top, with the first release version where
   appropriate.
     * Removed the useless parser error/warning callbacks with a proper logging
       API  that  can be accessed by the application to and dealt with as
       desired. (0.9.17)
     * Allow  raptor  parser  features (raptor_set_feature) to be set via
       librdf_parser_set_feature (0.9.17)
     * rdf_uri.h and rdf_node.h exported functions returning rdf_digest* which
       is a private structure, now made internal (0.9.16)
     * Added some defensive code checks for NULL object parameters and abort
       when debugging (0.9.15)
     * The serializer code crashed in PHP (0.9.15)
     * raptor-uri-test in redland when compiled against system raptor failed to
       find raptor.h; fixed in raptor 1.1.0.
     * Added librdf_model_get_storage method so storage object needn't be kept
       around when dealing with model (0.9.15).
     * Fixed serializing URI http://xmlns.com/foaf/0.1/mbox_sha1 to a property
       element to breaks the namespace/URI after 'sha1' as the maximal legal
       XML name (0.9.15)
     * Altered rdfproc to by default append to stores on parsing (0.9.15)
     * Docs: note in language docs that 'make install' of the main library is
       generally needed before any of the language builds will work (0.9.15)
     * BUG: Blank nodes with illegal nodeIDs (as far as RDF/XML are concerned)
       can be serialized. Fixed by the change below; all internal nodeIDs are
       now serializable in RDF/XML or N-Triples (0.9.14)
     * Rewrite incoming rdf:nodeID attribute values into same form as generated
       blank node IDs, ie. rredland-start-timerunique-sequence-counter (0.9.14)
     * example2.c is rather useless, replaced with a simple string parsing
       example (0.9.13)
     * Replaced *_seriali[sz]e methods with *_to_stream in order to reduce
       confusion versus serializer class (0.9.13)
     * BDB 4.1 causes problems - now supported (0.9.13)
     * perl - if you didn't clone a node before trying to re-use it the whole
       thing would segfault (0.9.13)
     * swig  1.3.14  may fail to work for some languages (perl,python ok)
       (0.9.13)
     * New method for syncing of models to store - librdf_model_sync (0.9.13)
     * Add proper error/warning reporting - world class has this now (0.9.13)
     * Ensure non-file: URIs do not cause crashes - fixed by Raptor URI class
       (0.9.13)
     * Add URI retrieval via external www libraries - done via raptor for
       retrieving URI content for parsing. Not by a new module. (0.9.13)
     * RFE: Add is_literal etc. methods to node class (0.9.13)
     * storage hash-type="memory" with no name (not really needed) crashed
       (0.9.13)
     * Initial thread support (0.9.13)
     * Repat removed - not up-to-date, maintained (0.9.13)
     * Crashed when contexts are attempted to be used when not enabled with
       contexts='yes' (0.9.13)
     * parse_as_stream methods assumed the URI object lived throughout the
       parsing. They may not, and had to be copied on the first call - fixed
       for raptor only (0.9.13)
     * make librdf_statement_set_subject* free any existing node before setting
       (0.9.12)
     * Pass  RDF  parser error messages to user code, scripting languages
       (0.9.12)
     * Add a swig test in autogen.sh, abort if it is too old (0.9.12)
     * swig 1.3.14 changed its default to shadow and failed to work out of the
       box. Add -noproxy to the swig line for 1.3.14+ (0.9.12)
     * Hacked around repat parser failing to pass bnode ids when as statement
       objects (0.9.12)
     * Added relative URI parsing code from Repat (via raptor) (0.9.12)
     * Handle xml:lang when the rdf parsers provide it (0.9.12)
     * Add query language interfaces (0.9.12)
     * Add support for blank nodes (were anonymous resources) (0.9.12)
     * Removed  all  node  types  except for resource, literal, blank, li
       (statement (0.9.12))
     * Use [3]libxml rather than expat as default xml parser (at least for
       raptor)  Reasons:  uses iconv to handle more content encodings and
       provides better error reporting (0.9.12)
     * Link XML Libraries (-lexpat etc.) before libwww libraries to ensure
       correct XML library is used (0.9.11)
     * Python interface to parsers now works (0.9.11)
     * Multiple startup/shutdowns of entire library now works (0.9.11)
     * Make the library work as a shared library (0.9.11)
     * Model size method implemented (0.9.11)
     * Added a [4]Java interface (0.9.10)
     * librdf_hash_from_string() - \ escaping doesn't work properly (0.9.9)
     * SiRPAC wrappers handle multi-line literal objects (0.9.9)
     * Added [5]Tcl interface (0.9.8)
     * Add module - [6]Raptor RDF parser - internal (0.9.8)
     * Make API docbook sgml generate 1 big HTML file (0.9.6)
     * Python interface (0.9.6)
     * Add proper error/warning reporting for RDF/XML parsers (0.9.6)
     * Perl interface (0.9.4)
     * module - storage implemented as hashes
     * made get methods in all hash impls. use iterators (side effecting -
       yuck)
     * made BDB V2 and V3 use btree and handle duplicates
     * removed GDBM from default code since doesn't handle duplicates
     * removed references to factories from simple user code
     * module - rdf parser - via libwww RDF parser
     * annotate the functions with gnome-doc / kernel-doc style comments (after
       JavaDoc) with care taken to make sure it is clear who owns the memory of
       objects passed in or returned by functions
     * module - rdf parser - via Java RDF API / SiRPAC
     * module - in memory storage
     * module - storage factory
     * module - model
     * module - memory allocation
     * change all functions to start with librdf_
     * a decent source-code based documentation system - GNOME / Linux kernel
       gnome-doc / kernel-doc programs based on the Javadoc formatted comments
       style, but for C
     * wrap the code with #ifdef etc. to prevent exposing internals to user
       code
     * module - berkeley DB hash
     * change functions to all start with RDF_ - new and free functions
     * decide on the license(s) - GPL/LGPL and BSDish ???
     * iterator interface and module for returning results

Decided to do differently, not to address

   I reserve the right to change my mind again!
     * Write stringbuffer for easy creation of growing in-memory strings - now
       being considered inside raptor.
     * Provide a way to represent reified statements
     * Redland does not work with GDBM hashes. BDB is much better (0.9.12)
     * Redland does not work with BerkeleyDB V1. Not fixing since it works with
       V2,V3 and V4 (0.9.12)
     * RFE: make Node and URI be the same class, change all methods using Nodes
       to take URI OR URI or Literal as appropriate. The RDF abstract syntax
       has nodes that are (URI-refs or Literals or ...) so this design matches
       it well (0.9.12)
     * These will not be made into modules at present, the internal RDF parser
       will use expat or libxml as necessary.
          + Add module - xml dom parser - external
          + Add module - xml dom parser - libxml
          + Add module - xml sax parser - libxml
          + Add module - xml parser - sax
          + Add module - xml parser - dom
          + Modularise the library so some parts can be removed [already done]
     * This is not needed as a module, the internal RDF parser will do this.
          + module - xml namespaces
     _________________________________________________________________

   Copyright 2000-2004 [7]Dave Beckett, [8]Institute for Learning and Research
   Technology, [9]University of Bristol

References

   1. http://librdf.org/TODO.html
   2. http://www.msu.edu/user/pfaffben/avl/
   3. http://xmlsoft.org/
   4. docs/java.html
   5. docs/tcl.html
   6. http://librdf.org/raptor/
   7. http://purl.org/net/dajobe/
   8. http://www.ilrt.bris.ac.uk/
   9. http://www.bristol.ac.uk/
