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
|
use mlua::{FromLua, IntoLua};
use ratatui::{style::Color, text::Span};
use tree_sitter_highlight::Highlight;
use crate::config::theme::style::Style;
pub(super) static HIGHLIGHT_NAMES: [&str; 29] = [
"attribute",
"boolean",
"comment",
"conditional",
"constant",
"constant.builtin",
"constructor",
"field",
"function",
"function.builtin",
"function.call",
"keyword",
"keyword.function",
"keyword.operator",
"keyword.return",
"label",
"method",
"method.call",
"number",
"operator",
"parameter",
"preproc",
"punctuation.bracket",
"punctuation.delimiter",
"repeat",
"string",
"string.escape",
"variable",
"variable.builtin",
];
#[derive(Default, Debug, Clone)]
pub struct HighlightTheme {
theme: [Style; 29],
}
impl HighlightTheme {
pub const fn new() -> Self {
Self {
theme: [
Style::new().fg(Color::White), // attribute
Style::new().fg(Color::White), // boolean
Style::new().fg(Color::White), // comment
Style::new().fg(Color::White), // conditional
Style::new().fg(Color::White), // constant
Style::new().fg(Color::White), // constant.builtin
Style::new().fg(Color::White), // constructor
Style::new().fg(Color::White), // field
Style::new().fg(Color::White), // function
Style::new().fg(Color::White), // function.builtin
Style::new().fg(Color::White), // function.call
Style::new().fg(Color::White), // keyword
Style::new().fg(Color::White), // keyword.function
Style::new().fg(Color::White), // keyword.operator
Style::new().fg(Color::White), // keyword.return
Style::new().fg(Color::White), // label
Style::new().fg(Color::White), // method
Style::new().fg(Color::White), // method.call
Style::new().fg(Color::White), // number
Style::new().fg(Color::White), // operator
Style::new().fg(Color::White), // parameter
Style::new().fg(Color::White), // preproc
Style::new().fg(Color::White), // punctuation.bracket
Style::new().fg(Color::White), // punctuation.delimiter
Style::new().fg(Color::White), // repeat
Style::new().fg(Color::White), // string
Style::new().fg(Color::White), // string.escape
Style::new().fg(Color::White), // variable
Style::new().fg(Color::White), // variable.builtin
],
}
}
pub fn highlight<'a>(&'a self, hl: Option<Highlight>, span: Span<'a>) -> Span<'a> {
if let Some(hl) = hl {
self.theme[hl.0].apply(span)
} else {
span
}
}
}
impl<'lua> IntoLua<'lua> for HighlightTheme {
fn into_lua(
self,
lua: &'lua mlua::prelude::Lua,
) -> mlua::prelude::LuaResult<mlua::prelude::LuaValue<'lua>> {
let table = lua.create_table()?;
for (i, names) in HIGHLIGHT_NAMES.iter().enumerate() {
table.set(names.replace('.', "_"), self.theme[i])?
}
table.into_lua(lua)
}
}
impl<'lua> FromLua<'lua> for HighlightTheme {
fn from_lua(
value: mlua::prelude::LuaValue<'lua>,
_lua: &'lua mlua::prelude::Lua,
) -> mlua::prelude::LuaResult<Self> {
let mut theme = HighlightTheme::default();
if value.is_table() {
let table = value.as_table().unwrap();
for (i, names) in HIGHLIGHT_NAMES.iter().enumerate() {
if let Ok(style) = table.get(names.replace('.', "_")) {
theme.theme[i] = style;
}
}
Ok(theme)
} else {
Err(mlua::prelude::LuaError::runtime(
"failed to parse HighlightTheme",
))
}
}
}
|
