This allows users to benefit from the same flexible machinery when using
SQLite as when using MySQL, and also allows to add some more default
cast rules too.
The metabang-bind lib offers a nice bind macro that solves the problem
of ignoring bindings in destructuring-bind, and allows a let* approach
to nested destructuring (wven when mixed with let declarations).
Using that lib (that we already indirectly depend on anyway) simplifies
the parser code substantially.
It's not possible to use a comma separator when using more than one
source field option at the same time, and for better readability the
options are to be found enclosed in squared brackets.
Also, it's now possible to spell out "from" and "for" keywords on the
source definitions, making it easier to read and maintain the load file,
as in this full example:
(
a from 0 for 10,
b from 10 for 8,
c from 18 for 8,
d from 26 for 17 [null if blanks, trim right whitespace]
)
As seen in #116, it might be better for the users to be able to ask for
field trimming right in the source definition, like we do for processing
nulls.
The default values for MySQL WITH clause options wasn't really tested
and broke on simple cases, the new set of defaults is known to work in
many cases (most?).
Other combinations of options will need some review work, and we might
need to consider preventing some of them, that's for another patch tho.
The licensing of some of the test material being unclear, make a +dfsg
source archive and packages, also clean up several items that shouldn't
be part of the final debian package (.vagrant, etc).
Thanks Christoph Berg for the review!
To avoid wasting everybody's time when trying to debug --load
command.load, rename the option to be more explicit about what it does.
Also implement some basic guards in the form of testing that the
filename extension is part of a very short whitelist: .lisp, .cl, .lsp
and .asd.
The format string were wrong in that ~@[...~] will not consume the argument
where we need to consume it, so use the more verbose form ~:[~*~;...~]
wherein the ~* rule forces the consuming of the unused argument.
Also, prefer using != and NOT REGEXP operators to the "not ( or )" form,
which was wrong too because spelled "not ( and )".
