Ann: SWI-Prolog 6.6.2

Hi,

I have uploaded SWI-Prolog 6.6.2 in the stable stream. This version
mostly fixes stability issues and updated a number of packages to the
latest version.  I expect 6.6.2 to be the last 6.6 release.  Highlights:

   * Kernel issues: Windows stdio handling, GC crash related to Goal@Var,
     Atom-GC crash that notably triggers on slow single core hardware
     (e.g., arm systems).

   * Various fixes to alarm handling

   * Updated HTTP libraries.  Some small additions, some cleanup of the
     interfaces (adding new, deprecating old).  Mostly small stuff.

   * ODBC: Better type handling (int32 and Unicode VARCHAR).

   * Semweb (RDF).  Added nquad support, fixed various bugs in the
     Turtle parser.  Small stuff.

   * Fixed a crash loading HTML5 using the XML parser.  Various small
     stuff.

   * SSL: fixed crash, memory leaks and portability issues.

   * IDE: better handling of IDE-in-a-thread, support %! PlDoc syntax.

Thanks for reporting bugs and submitting patches!

	Enjoy --- Jan


========================================
SWI-Prolog Changelog since version 6.6.1
========================================

  * FIXED: Only wrap the console if input, output and error are attached
    to a console.

  * PORT: Fixed winsock2.h include

  * PORT: Fixed Windows identification of console I/O using GetFileType().

  * MODIFIED: Only enable colour I/O if stdin, out and error are attached
    to a terminal.  If you want colour anyway, load library(ansi_term)
    explicitly.

  * FIXED: Possible crash in GC related to Goal@Var.  Keri Harris.

  * FIXED: Possible crash resulting from
    786402392f3ff2c7d68db9c81b22cf304e4b4153

  * FIXED: Avoid getting into the GMP danger zone with
    exponentiation. Ulrich Neumerkel.

  * FIXED: suboptimal deletion procedure in heaps Made heap operations
    run orders of magnitude slower than they should.

  * FIXED: avoid possible race during atom GC when findall/3 results are
    being collected

  * FIXED: Bug#142: Atom-GC crash related to findall/3.  Hard to trigger,
    except when using slow single core hardware.  Thanks to Eugeniy
    Meshcheryakov and Keri Harris for finding this and helping.

  * TEST: Some more test output stream issues

  * TEST: Some more writing to user_error.  Eugeniy Meshcheryakov.

  * TEST: Min test script (src/test.pl) now sends all progress to
    =user_error= instead of =user_output=.

  * FIXED: Consistent handling of end-of-clause when reading from strings.



===============
Package archive
===============

  * FIXED: archive ordering using compare

============
Package clib
============

  * MODIFIED: uri_is_global/1 fails for a single-letter scheme.
    This avoids misinterpretation of DOS path names.

  * FIXED: Removing pending alarms on thread exit could loop.

  * DOC: Document the fact that alarms are thread-specific

  * FIXED: Remove alarms related to a thread if the thread terminates.


============
Package http
============

  * FIXED: Conditionally load code that depends on is_dict/1

  * FIXED: Json convert rule ordering if last properties are ignored.

  * UPDATED: library(mimetype): Mime type for Turtle, added n-triples
    and nquads.

  * ADDED: setting http:prefix to library(http/http_path).  Fixes
    undocumented dependencies on ClioPatria.

  * ADDED: Bug#159: http_open/3: support for method(put).  Raivo Laanemets

  * ENHANCED: Do not print somewhat alarming messages on normal termination
    of HTTP handler threads.

  * CLEANUP: Use new functionality from library(http/http_host).
    Deprecate redundant predicates.

  * ADDED: library(http/http_host): http_public_url/2,
    http_public_host_url/2, ttp_public_host/4 Deprecated
    http_current_host/4.

  * DOC: Add PlDoc module comments to remaining files.

  * FIXED: Type error when computing the layout of a JSON term that embeds
    dicts in a list.

  * FIXED: json_write_dict/3: handling of the option tag(Name)

  * ADDED: directory_index//2 to library(http/http_dirindex) to allow
    for embedded listings. Also added options for sorting files.

  * ADDED: library(http_dirindex): pass page style dir_index(Dir, Title)
    to allow for styling the page.

  * FIXED: Parsing of "Status NNN Comment" from CGI replies.

  * ADDED: library(http/http_json) to deal with dicts

  * ADDED: library(http/json): json_read_dict/2,3, json_write_dict/2,3
    and atom_json_dict/3, to support JSON I/O using version 7 extended
    types dict and string.

  * ADDED: json_write/3: support dict as representation for JSON objects.

  * FIXED: Only redirect on a Location header if there is no Status or
    Status = 3XX.

  * ADDED: reply_json/3: a status(Code) option to force status replies
    other than 200.  Discussed with Wouter Beek.

  * ADDED: Allows passing status(Code) as extra header info to HTTP
    replies. The given code overrules the default code given with the
    action.

  * MODIFIED: Process the CGI Status: Code header to a numeric HTTP code.

  * ADDED: http_link_to_id/3: allow parameter as `file' of path.

  * ADDED: openid_current_url/2 to get the OpenID library's idea about
    the global server location.

  * ADDED: html_current_resource/1 to allow for conditional dependencies

===============
Package ltx2htm
===============

  * ADDED: \nodcgref{name}{arity}

  * ADDED: Translate \includegraphics for image file formats

  * ENHANCED: Better footnotes.  Anne Ogborn

===========
Package nlp
===========

  * ADDED: Sandbox declarations

============
Package odbc
============

  * FIXED: map nvarchar Prolog type to SQL_WVARCHAR SQL type

  * ENHANCED: support reading from nvarchar(max) database columns

  * FIXED: restrict SQLINTEGER prepared statement parameters to 32 bit
    integers

=============
Package pldoc
=============

  * FIXED: Update links in the manual when viewed through pldoc.
    Anne Ogborn.

==============
Package semweb
==============

  * DOC: Avoid misinterpretation of <prefix>:<local>

  * FIXED: Bug#160: rdf_load_library/2 claims non-existence of URLs.

  * FIXED: Turtle parser on """"\"""" (should read '""')

  * DOC: Updated docs to add a new index.  Haitao Zhang.

  * FIXED: Include <assert.h>

  * FIXED: EOF cannot appear in an IRIREF.  Wouter Beek

  * FIXED: rdf_meta/1: pass non-compliant arguments verbatim instead of
    failing the expansion.

  * ADDED: library(semweb/rdf_ntriples): Support nquads format.

  * DELETED: rdf_db:rdf_input/3 hook that was used by old ClioPatria
    versions. Please upgrade ClioPatria if this hits you.

  * MODIFIED: rdf_load/2: default graph for loading RDF from an URL now
    normalizes the URL and removes a possible #fragment.  This ensures
    that rdf_load/2 for e.g., skos:Concept and skos:prefLabel load the
    same graph.

  * DOC: rdf_load/2 updates

  * MODIFIED: Load a TRiG file into a single graph if the format =turtle=
    is explicitly specified.

  * ADDED: Sandbox declarations

  * FIXED: Turtle parser: allow last statement to end in EOF.  Wouter Beek.

  * ADDED: Extend library(semweb/rdf_http_plugin) to support
    library(http/http_ssl_plugin), so that we can load RDF directly from
    https servers.

============
Package sgml
============

  * FIXED: sgml_parse/2 using parse(content) if a `end` callback is
    defined.

  * FIXED: Default charset of HTML5 files is UTF-8

  * DOC: load_html/3.

  * MODIFIED: HTML5 DTD to accommodate RDFa attributes.

  * DOC: \verb$ error

  * ENHANCED: Added type checking on element content instead of using
    assertion/1.  Alan Baljeu.

  * FIXED: Crash when loading implicit DTD.  Occurs when loading HTML5
    using load_xml/3.

===========
Package ssl
===========

  * FIXED: possible crash when validating SSL context role

  * FIXED: Various memory leaks.  SSL contexts are now reclaimed by the
    garbage collector.  Implemented by Matt Lilley.

  * PORT: Check for fcntl.h and unistd.h in configure

============
Package xpce
============

  * ADDED: Support for using the %! comment syntax

  * FIXED: Menu entries to edit Prolog customization file.  Bob Minors.

  * FIXED: Wrap many toplevel goals accessing the GUI in in_pce_thread/1.