Files
Nim/tests/views/tsplit_into_openarray.nim
Andreas Rumpf 57b7841c18 better support for slices as views (#15414)
* moved view tests to tests/views
* refactoring
* more refactorings
* better support for system.toOpenArray for first class view types
2020-09-27 09:20:10 +02:00

38 lines
741 B
Nim

discard """
output: '''asdf
231
'''
cmd: "nim c --gc:arc -d:useMalloc -g $file"
valgrind: true
"""
{.experimental: "views".}
const
Whitespace = {' ', '\t', '\n', '\r'}
iterator split*(s: string, seps: set[char] = Whitespace,
maxsplit: int = -1): openArray[char] =
var last = 0
var splits = maxsplit
while last <= len(s):
var first = last
while last < len(s) and s[last] notin seps:
inc(last)
if splits == 0: last = len(s)
yield toOpenArray(s, first, last-1)
if splits == 0: break
dec(splits)
inc(last)
proc `$`(x: openArray[char]): string =
result = newString(x.len)
for i in 0..<x.len: result[i] = x[i]
proc main() =
for x in split("asdf 231"):
echo x
main()