mirror of
https://github.com/wren-lang/wren.git
synced 2026-01-11 22:28:45 +01:00
30 lines
1.0 KiB
Plaintext
30 lines
1.0 KiB
Plaintext
var s = "abçd"
|
|
IO.print(s.iterate(null)) // expect: 0
|
|
IO.print(s.iterate(0)) // expect: 1
|
|
IO.print(s.iterate(1)) // expect: 2
|
|
// Skip 3 because that's the middle of the ç sequence.
|
|
IO.print(s.iterate(2)) // expect: 4
|
|
// Iterating from the middle of a UTF-8 sequence goes to the next one.
|
|
IO.print(s.iterate(3)) // expect: 4
|
|
IO.print(s.iterate(4)) // expect: false
|
|
|
|
// Out of bounds.
|
|
IO.print(s.iterate(123)) // expect: false
|
|
IO.print(s.iterate(-1)) // expect: false
|
|
|
|
// Nothing to iterate in an empty string.
|
|
IO.print("".iterate(null)) // expect: false
|
|
|
|
// 8-bit clean.
|
|
IO.print("a\0b\0c".iterate(null)) // expect: 0
|
|
IO.print("a\0b\0c".iterate(0)) // expect: 1
|
|
IO.print("a\0b\0c".iterate(1)) // expect: 2
|
|
IO.print("a\0b\0c".iterate(2)) // expect: 3
|
|
IO.print("a\0b\0c".iterate(3)) // expect: 4
|
|
IO.print("a\0b\0c".iterate(4)) // expect: false
|
|
|
|
// Iterates over invalid UTF-8 one byte at a time.
|
|
IO.print("\xef\xf7".iterate(null)) // expect: 0
|
|
IO.print("\xef\xf7".iterate(0)) // expect: 1
|
|
IO.print("\xef\xf7".iterate(1)) // expect: false
|