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19:08:03
wanko
hello, is it okay to ask beginner scheme questions here, or is there a different channel for that?
19:46:43
dbotton
I assume there is no way in lisp to "use" the sequence passed to subseq as part of an expression to calculate end?
19:47:57
jasom
dbotton: I think various utility libraries let you do python-style passing of negative values for subseq ranges. I can't speak to the quality of any of them though.
19:48:22
Xach
dbotton: (defun trim-last-char (s) (subseq s 0 (1- (length s))) is what i might do if i didn't a cluttered expression
20:00:29
jasom
fiddlerwoaroof: but the original question was phrased in a way that assumes the sequence was of at least length 1
20:06:30
Bike
oh, i thought maybe sbcl might do its magic shrink-vectors-even-if-they-don't-have-fill-pointers thing but i guess it's too messy
20:54:36
dbotton
From a GitHub discussion "Clog is totally fun. It made me re-start learning Lisp." Thought I would share for those that help me
21:00:09
alanz
I know, which is why I am speaking up. I love seeing it come together bit by bit, and appreciate the effort you put in to making clear, understandable code
21:13:48
alanz
dbotton, I got as far as using your tutorial 13 as a base. Now scratching my head wondering what the next thing to do is. The general idea is to help managing entries to https://www.facebook.com/saflowerunion/posts/4851293668246422
21:18:54
dbotton
Since an admin tool, maybe consider using tutorial 22 as your base and have a nice look desktop motif
21:20:30
alanz
thanks, will do so. I also see myself interacting with the local file system, and showinng pictures. So the desktop one is definitely a good basis
21:21:53
alanz
its going to be slow though, this is a back-burner project for me, which I am using to learn cl at the same time (from some experience with elisp)
21:26:08
dbotton
And that is why my plan is to do a CLOG Lisp tutorial, it is a cool way for people to learn because they see results right away
21:27:25
dbotton
Still hope someone with better language skills takes me up on project :) but if not I will do
21:35:52
alanz
you are doing fine, as far as I can see. Being active and enthusiastic is the most important thing, I reckon
1:11:50
charles`
can't they just be macros? that then (sometimes) expand into implementation specific magic
1:26:09
_death
the self-modifying code issue is interesting.. not just because it uses "bletcherous" jargon, but also because it mentions "displacing macros", which I will now try to find more about.. my guess is that they "patch" the form in place with their expansion
5:56:11
holycow
docs updated. okay not tedious at all. i just need a tip on how to think about solving the problem and what to google for
5:59:37
holycow
i have a text file with a list of music files, one per line. i want to load the list of music files and i guess basically sort by 'i like it' 'i don't like it'. the interface part isnt too much of an issue. so uiop:read-file-lines works fine, but i am wondering how to 'store' the list of files in lisp ... maybe an array? I keep on reading about tokens as well. basically i will create a loop that will
5:59:43
holycow
loop over the list, ask me a question, record the answer and move on to the next one.
6:01:21
moon-child
can make a structure with a slot for the name of the file and a slot for whether you like it
6:03:30
beach
I would make a list of standard objects, one object per file, and have a like/don't like slot in it. I would not necessarily sort it right away. But then, I would hide the list behind a protocol (interface) that does not mention the representation.
6:05:16
ldbeth
for LOOP macro, how should I write (loop for j <<if (oddp j) then from 0 to x else from x down to 0 >> do ...)?
6:07:42
beach
There is no simple way. You may use FOR ... THEN instead of TO/DOWNTO, but it is not necessarily going to be prettier than two loops.
6:19:12
Nilby
charles`: It's kind of a meme that Lispers think everything is trivial, even when it's not, or at least not in other languages. Although it's true that many such packages are very simple portability wrappers around what is provided by an implementation.
6:41:33
fiddlerwoaroof
I always just assumed that it was because those libraries are intended _not_ to do anything particularly interesting