mirrors/janet
1
0
Fork 0
mirror of https://github.com/janet-lang/janet synced 2024-11-24 17:27:18 +00:00
Code Issues 1 Releases Wiki Activity

update interleave, interpose

Browse Source
This commit is contained in:
primo-ppcg 2023-09-02 18:27:34 +07:00
parent 51c0cf97bc
commit 9cf674cdcb
1 changed files with 22 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/boot/boot.janet
View File

@ -966,7 +966,6 @@
1 (map-n 1 ,maptype ,res ,f ,ind ,inds)
2 (map-n 2 ,maptype ,res ,f ,ind ,inds)
3 (map-n 3 ,maptype ,res ,f ,ind ,inds)
4 (map-n 4 ,maptype ,res ,f ,ind ,inds)
(do
(def iter-keys (array/new-filled ninds))
(def call-buffer (array/new-filled ninds))
@ -1472,8 +1471,8 @@
(do
(var n (length t))
(def ret (if (bytes? t)
(buffer/new-filled n)
(array/new-filled n)))
(buffer/new-filled n)
(array/new-filled n)))
(each v t
(put ret (-- n) v))
ret)
@ -1666,14 +1665,7 @@
(defn interleave
"Returns an array of the first elements of each col, then the second elements, etc."
[& cols]
(def res @[])
(def ncol (length cols))
(when (> ncol 0)
(def len (min ;(map length cols)))
(loop [i :range [0 len]
ci :range [0 ncol]]
(array/push res (in (in cols ci) i))))
res)
(mapcat tuple ;cols))
(defn distinct
"Returns an array of the deduplicated values in `xs`."
@ -1720,14 +1712,23 @@
``Returns a sequence of the elements of `ind` separated by
`sep`. Returns a new array.``
[sep ind]
(def len (length ind))
(def ret (array/new (- (* 2 len) 1)))
(if (> len 0) (put ret 0 (in ind 0)))
(var i 1)
(while (< i len)
(array/push ret sep (in ind i))
(++ i))
ret)
(var k (next ind nil))
(if (not= nil k)
(if (lengthable? ind)
(do
(def ret (array/new-filled (- (* 2 (length ind)) 1) sep))
(var i 0)
(while (not= nil k)
(put ret i (in ind k))
(set k (next ind k))
(+= i 2))
ret)
(do
(def ret @[(in ind k)])
(while (not= nil (set k (next ind k)))
(array/push ret sep (in ind k)))
ret))
@[]))
(defn partition
``Partition an indexed data structure `ind` into tuples
@ -2893,8 +2894,8 @@
(try
(printf pf x)
([e]
(eprintf "bad pretty format %v: %v" pf e)
(eflush)))
(eprintf "bad pretty format %v: %v" pf e)
(eflush)))
(flush))
(do
(debug/stacktrace f x "")