1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
pub fn escape_html(input: &str) -> String {
let mut output = String::with_capacity(input.len() * 2);
for c in input.chars() {
match c {
'&' => output.push_str("&"),
'<' => output.push_str("<"),
'>' => output.push_str(">"),
'"' => output.push_str("""),
'\'' => output.push_str("'"),
'/' => output.push_str("/"),
'`' => output.push_str("`"),
_ => output.push(c)
}
}
output
}
#[cfg(test)]
mod tests {
use super::{escape_html};
#[test]
fn test_escape_html() {
let tests = vec![
(r"a&b", "a&b"),
(r"<a", "<a"),
(r">a", ">a"),
(r#"""#, """),
(r#"'"#, "'"),
(r#"大阪"#, "大阪"),
];
for (input, expected) in tests {
assert_eq!(escape_html(input), expected);
}
}
}