ref: 74d91a0021de012908cfdb35fb61a1473a376130
dir: /lib/std/test/striter.myr/
use std
const main = {
var chars = ['a', 'b', 'c']
var splits = ["foo", "+bar"]
var graphemes = [
[0x300][:], /* disconnected accent */
[0x61][:], /* 'a' */
[0x53f2][:], /* '史', single codepoint */
[0x63][:], /* 'b' */
[0x9][:], /* '\t' */
[0x42f][:], /* 'Я' */
[0x78, 0x300, 0x300, 0x300, 0x300, 0x300][:], /* x, 4 accents */
[0xa][:], /* '\n' */
[0x7a, 0x309][:] /* 'z', accent */
]
var i
i = 0
for c : std.bychar("abc")
std.assert(chars[i++] == c, "wrong char")
;;
std.assert(i == chars.len, "wrong split count")
i = 0
for sp : std.bysplit("foo+++bar", "++")
std.assert(std.eq(splits[i++], sp), "wrong split {}", sp)
;;
std.assert(i == splits.len, "wrong split count")
i = 0
for g : std.bygrapheme("̀a史c\tЯx̀̀̀̀̀\nz̉")
std.assert(std.eq(g, graphemes[i++]), "mismatched grapheme cluster\n")
;;
std.assert(i == graphemes.len, "wrong grapheme set length")
}