32 lines
980 B
Rust
32 lines
980 B
Rust
use std;
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import std::str;
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import std::vec;
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fn main() {
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// Chars of 1, 2, 3, and 4 bytes
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let chs: [char] = ['e', 'é', '€', 0x10000 as char];
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let s: str = str::from_chars(chs);
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assert (str::byte_len(s) == 10u);
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assert (str::char_len(s) == 4u);
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assert (vec::len::<char>(str::to_chars(s)) == 4u);
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assert (str::eq(str::from_chars(str::to_chars(s)), s));
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assert (str::char_at(s, 0u) == 'e');
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assert (str::char_at(s, 1u) == 'é');
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assert (str::is_utf8(str::bytes(s)));
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assert (!str::is_utf8([0x80_u8]));
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assert (!str::is_utf8([0xc0_u8]));
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assert (!str::is_utf8([0xc0_u8, 0x10_u8]));
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let stack = "a×c€";
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assert (str::pop_char(stack) == '€');
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assert (str::pop_char(stack) == 'c');
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str::push_char(stack, 'u');
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assert (str::eq(stack, "a×u"));
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assert (str::shift_char(stack) == 'a');
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assert (str::shift_char(stack) == '×');
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str::unshift_char(stack, 'ß');
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assert (str::eq(stack, "ßu"));
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}
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