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<R1ck77>Hi! Is there any way to add a docstring to function definitions (a-la-elisp/Clojure)?

<sneek>Welcome back R1ck77, you have 2 messages!

<sneek>R1ck77, dsmith says: For embedded, there is Chibi Scheme: http://synthcode.com/scheme/chibi/

<sneek>R1ck77, dsmith says: "Chibi-Scheme is a very small library with no external dependencies, intended for use as an extension and scripting language in C programs."

<R1ck77>sneek help

<R1ck77>sneek botsnack

<sneek>:)

<mwette>Rick77. If the first expression in a procedure body is a string, then it serves as the docstring. (define (foo) "does nothing" #t) ; guile> ,d foo

<janneke>hmm, i'm getting a build failure for guile-1.8.8 on x86

<janneke>PASS: test-bad-identifiers

<janneke>ERROR: Value out of range -9223372036854775808 to 9223372036854775807: -9223372036854775808

<topoi>How do i transform '(a (b c)) to '((a) ((b) (c)))? It should be plainsimple but i seem to do overlook something.

<sneek>topoi, you have 1 message!

<sneek>topoi, wingo says: there were problems in guile and g-wrap, but now for me guile-gnome works fine with master

<topoi>I just want to transform the elements in a tree.

<topoi>(resp. the leaves)

<chrislck>this is not straightforward

<chrislck>here's a super ugly version: https://pastebin.com/raw/3r676bwz

<topoi>chrislck: Thx. =) Ugly is better than dysfunctional. I tried with recursion and stateless (foldr like) but seemed to make some stupid mistakes which I could not see.

<justin_smith>this version makes a new list instead of mutating the one you already had http://ix.io/2qXi

<justin_smith>(stateless, as you say)

<stis>perhaps my-flatten in https://pastebin.com/7WBR6Mr1

<chrislck>topoi, cleaner: https://pastebin.com/raw/hb6FjGZt

<chrislck>^ this one optimized

<topoi>(I needed it for a better representation of a huffman tree; you need small fun projects for keeping fit. I lost it as it seems. =)

<justin_smith>chrislck: optimized in what sense? less stack usage?

<chrislck>I think so, avoids list-generating map

<justin_smith>but it calls reverse, which walks the entire result at the end

<justin_smith>the job here is making a list

<chrislck>ah true

<topoi>justin_smith: There was a useless layer in it. As I failed to flatten the bottom layer I tried the inverse and failed again, became quite frustrated after a while and then joined #guile to find some friendly folks who arbitrated my anger. =)

<justin_smith>topoi: haha, well hopefully one of our examples help then

<topoi>I'll walk through each of them. Thanks all! =)

<chrislck>(ignore the embarassing ugly one)

<justin_smith>chrislck: well it did respond to the question literally (while the others make new lists)

<chrislck>but is O(N^2) at least

<stis>topoi: non functional version that is avoidingin append, tree traversal with ackumulator. see https://pastebin.com/dGkZUUKw

<stis>oh I forgot to return the value of the ackumulaotor: (let ((ack (mk-ackumulator))) (tree-traversal x ack) (ack)))

<stis>is the corrected version

<stis>and a functional one avoiding append https://pastebin.com/XEzRByFv

<chrislck>prize for someone who writes using fold

<justin_smith>chrislck: I claim my prize http://ix.io/2qXs

<justin_smith>if fold-right isn't acceptable, pretend I called reverse! on the result of fold

<justin_smith>oh I left out the actual call: (map-tree list '(a (b c))) => ((a) ((b) (c)))

<chrislck> 👏

<chrislck>was looking for something like https://pastebin.com/raw/M3R9xfmr without

<justin_smith>my map version doeos less work, by actually producing the result in the same order the output needs it

<R1ck77>Hi! Is there in Guile the equivalent of Clojure's interpose?

<R1ck77>(interpose "," '("hello" "there")) -> '("hello" "," "there")

<rgherdt>R1ck77: string-join

<rgherdt>hmm, not the same, sorry. this one merges the strings

<R1ck77>can I add a separator while joining? The stuff I'm doing is actually strings, so..

*R1ck77 testing

<R1ck77>it does exactly what I need, thank you rgherdt!

<R1ck77>(still curious if a general interpose exists btw, so if there is any taker, he/she's welcome)

<rgherdt>yw

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IRC channel logs

2020-07-05.log