lists.tlug.jp-scraperepo (which maybe we would want to rename) and serving that from Netlify is something I can help with.
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@sssjjjnnn Just looking through your parser code; I think you really wanted
Either instead of
Maybe for handling errors. The convention is that
Left is an error and
Right is a value with which to continue, and the monad definition encodes this similar to
Monad Maybe, by abandoning processing and letting the
Left value propagate through to the end when an error occurs:
instance Monad (Either e) where Left l >>= _ = Left l Right r >>= k = k r
I'm not sure off-hand what the exact type should be, but probably something like
Either (String, ParserState) (a, ParserState),
String being the error message, because the
ParserState will contain the position where the error occurred and we can print that. (Probably we also want to keep line and maybe column number in the state.)
<$. So I guess I'd better go read up on and figure that out, and maybe complete my little explicatory monadic parser. I have the feeling with yours you've got too many functions touching and extracting the state, rather than leaving that only to the lowest-level combinators.
function <$> arg1 <*> arg2 <*> arg3
function <$ drop_this_arg <*> arg1 <*> arg2
func <$> arg1 <* drop_this_arg <*> arg2
*>, too, I think; those seem pretty simple. But the type signature
(<$) :: a -> f b -> f aisn't obvious to me, and from what you've said here and elsewhere I think I'm missing an intuition about the relationship between Appicative and Functors. I'll go back and spend an hour on it and I'm sure it will all come clear.
btype in the above is completely unused! (I just had to think for a moment about what
fmap . constdoes.)
lists.tlug.jpfor the scraped copy of the current lists site. I didn't do any other subdomains; @ragga things we should just drop them and I agree. Everything should be pretty fully documented but ask here if you have questions.
At a quick glance, all looks good except the archive user/pw images which don't load on new.tlug.jp. Was that intentional?
In any case, lists.tlug.jp is now pointed at Jims server and looks to be working fine, which is kinda the most important as it's the portal for the mailing list.
Going forward, I think the main pages on both tlug.jp and lists.tlug.jp will have to be checked for consistency anyway.