|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The older regex fails on [today's puzzle] & I didn't really understand
what it did. The newer one is simpler & I understand how it works.
[today's puzzle] https://mastodon.art/@Algot/105690195742318751
Thanks to guifa on #raku@freenode, they explained me how they would
build regex for this problem. I'm pasting the logs here:
|[...]
|10:35 <guifa> Smallest element here is the letter. Lots of ways to
| represent it, but I’d go with \S+
|10:35 <guifa> The next smallest is the group of letters
|10:36 <guifa> Which is what you just got with spaces in between it
|10:36 <guifa> so you get (\S+)+ % \h
|10:36 <guifa> Next you want to grab individual lines with that
| pattern in it so
|10:37 <guifa> ( (\S+)+ % \h )+ \n
|10:37 <guifa> And lastly, you want to start the pattern after a
| double return
|[...]
|10:39 <guifa> \n \n ( (\S+)+ % \h )+ % \n
|10:41 <guifa> The only problem here is that this technically does
| match Hint. So to limit things more, you can either
| be stricter about the inner bit (using \S \*? instead
| of \S+), explicitly putting “Hint\n\n” in the regex
| start, or requiring more than one inner match (\S+)
| ** 2..* % \h
|[...]
|10:47 <guifa> But you might consider breaking things out into
| tokens
|[...]
|10:54 <guifa> I think a lot of times people try to write regex left
| to right, when they need to make it small to big
|10:54 <guifa> That’s part of the reason you have the grammars in
| Raku — it really pushes you to think of things that
| way
I asked guifa before including this, they were okay with it.
|