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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
pub mod error;
pub(crate) mod fs;
mod git;
mod journal;
mod settings;
mod table;
mod wikarden;
pub use error::WikError;
pub use journal::JournalName;
pub use settings::Settings;
pub use table::SectionData;
pub use wikarden::{PathType, Source, Wikarden};
use crate::fs::{Open, WikFile, WikPath};
pub(crate) fn quotes_encode(raw: &str) -> String {
let mut ret = String::with_capacity(raw.len() + 4);
ret.push('"');
for ch in raw.chars() {
match ch {
'"' => {
ret.push('\\');
ret.push('"');
}
'\\' => {
ret.push('\\');
ret.push('\\');
}
ch => ret.push(ch),
}
}
ret.push('"');
ret
}
pub(crate) fn quotes_decode(raw: &str) -> Option<(String, &str)> {
let raw = match raw.chars().next() {
Some('"') => &raw[1..],
_ => return None,
};
let mut ret = String::with_capacity(raw.len() / 2);
let mut escaping = false;
for (idx, ch) in raw.chars().enumerate() {
match ch {
'\\' if !escaping => escaping = true,
'\\' if escaping => {
ret.push('\\');
escaping = false;
}
'"' if !escaping => return Some((ret, &raw[idx + 1..])),
'"' if escaping => {
ret.push('"');
escaping = false;
}
ch if !escaping => ret.push(ch),
ch if escaping => {
ret.push('\\');
ret.push(ch);
escaping = false;
}
_ => unreachable!(),
}
}
None
}
#[cfg(test)]
mod test {
#[test]
pub fn test_quotes_encode() {
macro_rules! enc {
($encode:literal -> $expected:literal) => {
let actual = crate::quotes_encode($encode);
if actual != $expected {
panic!(
"quotes_encode failed!\nexpected: '{}'\n actual: '{}'",
$expected, actual
);
}
};
}
enc!("encode" -> r#""encode""#);
enc!("encode\\" -> r#""encode\\""#);
enc!("encode \"" -> r#""encode \"""#);
}
#[test]
pub fn test_quotes_decode() {
macro_rules! dec {
($encode:literal -> $expected:expr) => {
let actual = crate::quotes_decode($encode).unwrap();
if actual != $expected {
panic!(
"quotes_encode failed!\nexpected: '{:?}'\n actual: '{:?}'",
$expected, actual
);
}
};
}
dec!(r#""decode""# -> (String::from("decode"), ""));
dec!(r#""escape \\""# -> (String::from("escape \\"), ""));
dec!(r#""quote \"""# -> (String::from("quote \""), ""));
dec!(r#""more after" some"# -> (String::from("more after"), " some"));
}
}
|