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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
use std::borrow::Cow;
use std::str::FromStr;
use combine::stream::position::Stream;
use crate::encode::{to_string_repr, StringStyle};
use crate::parser;
use crate::parser::is_unquoted_char;
use crate::repr::{Decor, Repr};
use crate::InternalString;
#[derive(Debug, Eq, PartialEq, PartialOrd, Ord, Hash, Clone)]
pub struct Key {
key: InternalString,
pub(crate) repr: Option<Repr>,
pub(crate) decor: Decor,
}
impl Key {
pub fn new(key: impl Into<InternalString>) -> Self {
Self {
key: key.into(),
repr: None,
decor: Default::default(),
}
}
pub(crate) fn with_repr_unchecked(mut self, repr: Repr) -> Self {
self.repr = Some(repr);
self
}
pub fn with_decor(mut self, decor: Decor) -> Self {
self.decor = decor;
self
}
pub fn get(&self) -> &str {
&self.key
}
pub(crate) fn get_internal(&self) -> &InternalString {
&self.key
}
pub fn to_repr(&self) -> Cow<Repr> {
self.repr
.as_ref()
.map(Cow::Borrowed)
.unwrap_or_else(|| Cow::Owned(to_key_repr(&self.key)))
}
pub fn decor_mut(&mut self) -> &mut Decor {
&mut self.decor
}
pub fn decor(&self) -> &Decor {
&self.decor
}
pub fn fmt(&mut self) {
self.repr = Some(to_key_repr(&self.key));
}
fn try_parse(s: &str) -> Result<Key, parser::TomlError> {
use combine::stream::position::{IndexPositioner, Positioner};
use combine::EasyParser;
let b = s.as_bytes();
let result = parser::key_parser().easy_parse(Stream::new(b));
match result {
Ok((_, ref rest)) if !rest.input.is_empty() => Err(parser::TomlError::from_unparsed(
(&rest.positioner
as &dyn Positioner<usize, Position = usize, Checkpoint = IndexPositioner>)
.position(),
b,
)),
Ok(((raw, key), _)) => Ok(Key::new(key).with_repr_unchecked(Repr::new_unchecked(raw))),
Err(e) => Err(parser::TomlError::new(e, b)),
}
}
}
impl std::fmt::Display for Key {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
crate::encode::Encode::encode(self, f, ("", ""))
}
}
impl FromStr for Key {
type Err = parser::TomlError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let basic = format!("\"{}\"", s);
let literal = format!("'{}'", s);
Key::try_parse(s)
.or_else(|_| Key::try_parse(&basic))
.or_else(|_| Key::try_parse(&literal))
}
}
fn to_key_repr(key: &str) -> Repr {
if key.as_bytes().iter().copied().all(is_unquoted_char) && !key.is_empty() {
Repr::new_unchecked(key)
} else {
to_string_repr(key, Some(StringStyle::OnelineSingle), Some(false))
}
}
impl<'b> From<&'b str> for Key {
fn from(s: &'b str) -> Self {
Key::new(s)
}
}
impl<'b> From<&'b String> for Key {
fn from(s: &'b String) -> Self {
Key::new(s)
}
}
impl From<String> for Key {
fn from(s: String) -> Self {
Key::new(s)
}
}
impl From<InternalString> for Key {
fn from(s: InternalString) -> Self {
Key::new(s)
}
}
#[doc(hidden)]
impl From<Key> for InternalString {
fn from(key: Key) -> InternalString {
key.key
}
}