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fix bug in at

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This commit is contained in:
Scott Richmond 2024-06-17 13:06:37 -04:00
parent 716ecb01c5
commit 3d0b58e6ed
2 changed files with 17 additions and 17 deletions
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18
prelude.ld
View File

@ -5,7 +5,7 @@
fn and fn and
fn append fn append
fn apply_command fn apply_command
fn assoc & ? fn assoc
fn atan/2 fn atan/2
fn deg/rad fn deg/rad
fn dict fn dict
@ -15,6 +15,7 @@ fn get
fn join fn join
fn mod fn mod
fn neg? fn neg?
fn print!
fn some? fn some?
fn state/call fn state/call
fn store! fn store!
@ -190,8 +191,7 @@ fn list {
fn fold { fn fold {
"Folds a list." "Folds a list."
(f as :fn, xs as :list) -> fold (f, xs, f ()) (f as :fn, xs as :list) -> fold (f, xs, f ())
(f as :fn, xs as :list, root) -> { (f as :fn, xs as :list, root) -> loop (root, first (xs), rest (xs)) with {
loop (root, first (xs), rest (xs)) with {
(prev, curr, []) -> f (prev, curr) (prev, curr, []) -> f (prev, curr)
(prev, curr, remaining) -> recur ( (prev, curr, remaining) -> recur (
f (prev, curr) f (prev, curr)
@ -199,7 +199,6 @@ fn fold {
rest (remaining) rest (remaining)
) )
} }
}
} }
& TODO: optimize these with base :conj! & TODO: optimize these with base :conj!
@ -375,12 +374,15 @@ fn strip {
fn words { fn words {
"Takes a string and returns a list of the words in the string. Strips all whitespace." "Takes a string and returns a list of the words in the string. Strips all whitespace."
(str as :string) -> { (str as :string) -> {
print! (str)
let no_punct = strip (str) let no_punct = strip (str)
print! (no_punct)
let strs = split (no_punct, " ") let strs = split (no_punct, " ")
print! (strs)
fn worder (list, str) -> if empty? (str) fn worder (list, str) -> if empty? (str)
then list then do list > report!
else append (list, str) else do append (list, str) > report!
fold (worder, strs, []) do fold (worder, strs, []) > report!
} }
} }
@ -623,7 +625,7 @@ fn max {
& additional list operations now that we have comparitors & additional list operations now that we have comparitors
fn at { fn at {
"Returns the element at index n of a list or tuple, or the byte at index n of a string. Zero-indexed: the first element is at index 0. Returns nil if nothing is found in a list or tuple; returns an empty string if nothing is found in a string." "Returns the element at index n of a list or tuple, or the byte at index n of a string. Zero-indexed: the first element is at index 0. Returns nil if nothing is found in a list or tuple; returns an empty string if nothing is found in a string."
(xs as :list, n as :number) -> base :nth (xs, n) (xs as :list, n as :number) -> base :nth (n, xs)
(xs as :tuple, n as :number) -> base :nth (n, xs) (xs as :tuple, n as :number) -> base :nth (n, xs)
(str as :string, n as :number) -> when { (str as :string, n as :number) -> when {
neg? (n) -> "" neg? (n) -> ""

4
src/ludus.janet
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@ -52,9 +52,7 @@
(comment (comment
# (do # (do
(def source ` (def source `
let myset = ${1, 2, 3, 3, 2} fold (add, [1, 2, 3])
omit (2, myset)
myset
`) `)
(def out (-> source (def out (-> source
ludus ludus