1use percent_encoding::{AsciiSet, NON_ALPHANUMERIC};
2use std::borrow::Cow;
3
4pub const QS_ENCODE_SET: &AsciiSet = &NON_ALPHANUMERIC
5 .remove(b' ')
6 .remove(b'*')
7 .remove(b'-')
8 .remove(b'.')
9 .remove(b'_');
10
11pub fn replace_space(input: &str) -> Cow<str> {
12 match input.as_bytes().iter().position(|&b| b == b' ') {
13 None => Cow::Borrowed(input),
14 Some(first_position) => {
15 let mut replaced = input.as_bytes().to_owned();
16 replaced[first_position] = b'+';
17 for byte in &mut replaced[first_position + 1..] {
18 if *byte == b' ' {
19 *byte = b'+';
20 }
21 }
22 Cow::Owned(String::from_utf8(replaced).expect("replacing ' ' with '+' cannot panic"))
23 }
24 }
25}