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
58
59
60
61
|
pub trait ContainsAndSkipBrackets {
fn contains_and_skip_brackets(&self, pattern: &str) -> bool;
}
impl ContainsAndSkipBrackets for String {
fn contains_and_skip_brackets(&self, pattern: &str) -> bool {
if self.contains(pattern) {
let (first, _) = self.split_once(pattern).unwrap();
let opening_count = first.chars().filter(|c| *c == '(').count();
let closing_count = first.chars().filter(|c| *c == ')').count();
return opening_count == closing_count;
}
false
}
}
pub trait SplitMatchingBracket {
fn split_on_matching_bracket(&self) -> (&str, &str);
fn split_once_and_skipt_brackets(&self, pattern: char) -> Option<(&str, &str)>;
}
impl SplitMatchingBracket for String {
fn split_on_matching_bracket(&self) -> (&str, &str) {
let mut i = 0;
let mut bracket_balance = -1;
for c in self.chars() {
i += 1;
match c {
'(' => bracket_balance += 1,
')' => bracket_balance -= 1,
_ => {}
}
if bracket_balance < 0 {
break;
}
}
self.split_at(i)
}
fn split_once_and_skipt_brackets(&self, pattern: char) -> Option<(&str, &str)> {
let mut i = 0;
let mut bracket_balance = 0;
for c in self.chars() {
i += 1;
match c {
'(' => bracket_balance += 1,
')' => bracket_balance -= 1,
_ => {}
}
if bracket_balance <= 0 && c == pattern {
let (a, b) = self.split_at(i);
return Some((&a[0..a.len() - 1], b))
}
}
None
}
}
|
