Hi Lionel,
Sorry for the naive questions, but to clarify:
1) You are providing the patch that needs to be applied to the 4.18 tarball.
2) The CQL implementation will use scidvspc's built-in search gui, so no
cli lines needed?
3) If it proves to be a better search function, should Steve port it to
the next version?
On 11/15/2017 07:10 PM, Lionel wrote:
I've ported Lewis Stiller's and Gady Costeff's CQL v5.1 implementation
(http://www.gadycosteff.com/cql) to Scid vs PC as a fully integrated
search engine.
I and a couple of others have been beating up on the engine for 10-12
days and it appears to be quite solid. The port was relatively
trivial, so I'm not expecting many problems, but I'm looking for more
volunteers to help test what is a rather extensive grammar, especially
on non-Linux platforms.
In particular, it would be very helpful if someone possessing Harold
van der Heijden's study database (http://hhdbv.nl/) could test the
port against that db. There is a set of scripts in the examples
directory to aid in that endeavor. I've done my best to find or
generate games which test the edge cases which are not likely to be
present in one's typical chess database, but Stiller recommends
Heijden's db as something of a testing high bar.
The build process for including the CQL engine in the Scid executable
has only been implemented for the Linux platform, as I have no way of
testing on other platforms. I will happily incorporate patches for
the Makefiles for other platforms as they are offered. The build
requires a C++11 compiler. The CQL engine has been successfully
compiled with GNU g++ and with clang, as well as with Microsoft Visual
C++. The entire Scid+CQL build has been tested with GNU g++.
I very strongly recommend that users of this feature read the CQL
Search section in the Help Guide before getting started. There are
some essential guidelines in that section which can save one from any
number of major headaches and points of confusion. Read all of it.
Twice.
Please contact me off list for the [rather large] CQL patch, which
applies cleanly to the v4.18.1 tarball. To avoid spamming this list
with CQL-related noise, please address all questions/problems directly
to me. Further notices, clarifications, faqs, update patches, etc.,
coming from me will be addressed only to those who have requested the
patch.
I'll be welcoming comments and feedback and suggestions while I'm
eliminating the last of the minor memory leaks in the engine over the
next few weeks, and hope to release a final patch toward the end of
the year. I personally find this integrated CQL engine an
order-of-magnitude more satisfying to use than the standalone version,
and the language, itself, continues to impress the hell out of me.
Many thanks go to Stiller and Costeff for their innovative work on
CQL, and to Steve Atkinson for his long years of dedication to the
Scid vs PC project.
-- Lionel
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