> The first thing I always use to judge the quality of a project is the
> state of its source code. In perusing the project source tree, I
> noticed that you apparently decided not to use the source from the
> originators of CQL, even though it is available on request.
>
> Was this a licensing issue, or was it an issue with the quality of their
> code?
I don't need the original sources, would be too complicated to adapt this to
Scidb, especially because the original sources (of CQL version 2.0) are coded
in C.
> Your decision to go with CQL for all search funtionality in Scidb is a
> huge plus for the project
Thanks, CQL is a great idea, but it requires further development for the usage
in a chess database application. Recently CQL version 5.1 has been published,
but I'm not convinced:
1. The syntax of CQL 5.1 is quite unsuccessful, the readability suffers.
2. The author of CQL 5.1 has completely ignored the further development of
the prior CQL-S version (based on CQL 3.02), which contains extensions
especially useful for searches in chess databases.
So I decided that i will develop a new CQL version, already named CQL-S, with
full support of all features offered by a chess database application. I'm still
working on this language, it will have a strong type based syntax, this gives
more flexibility. One simple example from CQL-S which cannot be expressed in
CQL 5.1:
:matchstring {@player white} {@player black}
This expression is matching whether the name of the white and black players
are equal.
> I'm also curious as to whether there is an scidb-dev list to be found in
> some obscure corner of the universe?
Yes, I should establish such a list.
Gregor
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