/src/test/run-pass/utf8_chars.rs

http://github.com/jruderman/rust · Rust · 31 lines · 26 code · 4 blank · 1 comment · 12 complexity · 6a628a9850f5bdd6e44f4d6e5bc2502d MD5 · raw file

  1. use std;
  2. import str;
  3. import vec;
  4. fn main() {
  5. // Chars of 1, 2, 3, and 4 bytes
  6. let chs: ~[char] = ~['e', 'é', '€', 0x10000 as char];
  7. let s: ~str = str::from_chars(chs);
  8. assert (str::len(s) == 10u);
  9. assert (str::char_len(s) == 4u);
  10. assert (vec::len(str::chars(s)) == 4u);
  11. assert (str::from_chars(str::chars(s)) == s);
  12. assert (str::char_at(s, 0u) == 'e');
  13. assert (str::char_at(s, 1u) == 'é');
  14. assert (str::is_utf8(str::bytes(s)));
  15. assert (!str::is_utf8(~[0x80_u8]));
  16. assert (!str::is_utf8(~[0xc0_u8]));
  17. assert (!str::is_utf8(~[0xc0_u8, 0x10_u8]));
  18. let mut stack = ~"a×c€";
  19. assert (str::pop_char(stack) == '€');
  20. assert (str::pop_char(stack) == 'c');
  21. str::push_char(stack, 'u');
  22. assert (stack == ~"a×u");
  23. assert (str::shift_char(stack) == 'a');
  24. assert (str::shift_char(stack) == '×');
  25. str::unshift_char(stack, 'ß');
  26. assert (stack == ~"ßu");
  27. }