1use indexmap::IndexMap;
2use serde::Deserialize;
3use strum::EnumIter;
4
5#[derive(Debug, PartialEq, Eq, Deserialize)]
6#[serde(untagged)]
7pub enum VsCodeTokenScope {
8 One(String),
9 Many(Vec<String>),
10}
11
12#[derive(Debug, Deserialize)]
13pub struct VsCodeTokenColor {
14 pub name: Option<String>,
15 pub scope: Option<VsCodeTokenScope>,
16 pub settings: VsCodeTokenColorSettings,
17}
18
19#[derive(Debug, Deserialize)]
20pub struct VsCodeTokenColorSettings {
21 pub foreground: Option<String>,
22 pub background: Option<String>,
23 #[serde(rename = "fontStyle")]
24 pub font_style: Option<String>,
25}
26
27#[derive(Debug, PartialEq, Copy, Clone, EnumIter)]
28pub enum ZedSyntaxToken {
29 Attribute,
30 Boolean,
31 Comment,
32 CommentDoc,
33 Constant,
34 Constructor,
35 Embedded,
36 Emphasis,
37 EmphasisStrong,
38 Enum,
39 Function,
40 Hint,
41 Keyword,
42 Label,
43 LinkText,
44 LinkUri,
45 Number,
46 Operator,
47 Predictive,
48 Preproc,
49 Primary,
50 Property,
51 Punctuation,
52 PunctuationBracket,
53 PunctuationDelimiter,
54 PunctuationListMarker,
55 PunctuationSpecial,
56 String,
57 StringEscape,
58 StringRegex,
59 StringSpecial,
60 StringSpecialSymbol,
61 Tag,
62 TextLiteral,
63 Title,
64 Type,
65 Variable,
66 VariableSpecial,
67 Variant,
68}
69
70impl std::fmt::Display for ZedSyntaxToken {
71 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
72 write!(
73 f,
74 "{}",
75 match self {
76 ZedSyntaxToken::Attribute => "attribute",
77 ZedSyntaxToken::Boolean => "boolean",
78 ZedSyntaxToken::Comment => "comment",
79 ZedSyntaxToken::CommentDoc => "comment.doc",
80 ZedSyntaxToken::Constant => "constant",
81 ZedSyntaxToken::Constructor => "constructor",
82 ZedSyntaxToken::Embedded => "embedded",
83 ZedSyntaxToken::Emphasis => "emphasis",
84 ZedSyntaxToken::EmphasisStrong => "emphasis.strong",
85 ZedSyntaxToken::Enum => "enum",
86 ZedSyntaxToken::Function => "function",
87 ZedSyntaxToken::Hint => "hint",
88 ZedSyntaxToken::Keyword => "keyword",
89 ZedSyntaxToken::Label => "label",
90 ZedSyntaxToken::LinkText => "link_text",
91 ZedSyntaxToken::LinkUri => "link_uri",
92 ZedSyntaxToken::Number => "number",
93 ZedSyntaxToken::Operator => "operator",
94 ZedSyntaxToken::Predictive => "predictive",
95 ZedSyntaxToken::Preproc => "preproc",
96 ZedSyntaxToken::Primary => "primary",
97 ZedSyntaxToken::Property => "property",
98 ZedSyntaxToken::Punctuation => "punctuation",
99 ZedSyntaxToken::PunctuationBracket => "punctuation.bracket",
100 ZedSyntaxToken::PunctuationDelimiter => "punctuation.delimiter",
101 ZedSyntaxToken::PunctuationListMarker => "punctuation.list_marker",
102 ZedSyntaxToken::PunctuationSpecial => "punctuation.special",
103 ZedSyntaxToken::String => "string",
104 ZedSyntaxToken::StringEscape => "string.escape",
105 ZedSyntaxToken::StringRegex => "string.regex",
106 ZedSyntaxToken::StringSpecial => "string.special",
107 ZedSyntaxToken::StringSpecialSymbol => "string.special.symbol",
108 ZedSyntaxToken::Tag => "tag",
109 ZedSyntaxToken::TextLiteral => "text.literal",
110 ZedSyntaxToken::Title => "title",
111 ZedSyntaxToken::Type => "type",
112 ZedSyntaxToken::Variable => "variable",
113 ZedSyntaxToken::VariableSpecial => "variable.special",
114 ZedSyntaxToken::Variant => "variant",
115 }
116 )
117 }
118}
119
120impl ZedSyntaxToken {
121 pub fn find_best_token_color_match<'a>(
122 &self,
123 token_colors: &'a [VsCodeTokenColor],
124 ) -> Option<&'a VsCodeTokenColor> {
125 let mut ranked_matches = IndexMap::new();
126
127 for (ix, token_color) in token_colors.iter().enumerate() {
128 if token_color.settings.foreground.is_none() {
129 continue;
130 }
131
132 let Some(rank) = self.rank_match(token_color) else {
133 continue;
134 };
135
136 if rank > 0 {
137 ranked_matches.insert(ix, rank);
138 }
139 }
140
141 ranked_matches
142 .into_iter()
143 .max_by_key(|(_, rank)| *rank)
144 .map(|(ix, _)| &token_colors[ix])
145 }
146
147 fn rank_match(&self, token_color: &VsCodeTokenColor) -> Option<u32> {
148 let candidate_scopes = match token_color.scope.as_ref()? {
149 VsCodeTokenScope::One(scope) => vec![scope],
150 VsCodeTokenScope::Many(scopes) => scopes.iter().collect(),
151 }
152 .iter()
153 .map(|scope| scope.as_str())
154 .collect::<Vec<_>>();
155
156 let mut matches = 0;
157
158 for scope in self.to_vscode() {
159 if candidate_scopes.contains(&scope) {
160 matches += 1;
161 }
162 }
163
164 Some(matches)
165 }
166
167 pub fn fallbacks(&self) -> &[Self] {
168 match self {
169 ZedSyntaxToken::CommentDoc => &[ZedSyntaxToken::Comment],
170 ZedSyntaxToken::VariableSpecial => &[ZedSyntaxToken::Variable],
171 ZedSyntaxToken::PunctuationBracket
172 | ZedSyntaxToken::PunctuationDelimiter
173 | ZedSyntaxToken::PunctuationListMarker
174 | ZedSyntaxToken::PunctuationSpecial => &[ZedSyntaxToken::Punctuation],
175 ZedSyntaxToken::StringEscape
176 | ZedSyntaxToken::StringRegex
177 | ZedSyntaxToken::StringSpecial
178 | ZedSyntaxToken::StringSpecialSymbol => &[ZedSyntaxToken::String],
179 _ => &[],
180 }
181 }
182
183 pub fn to_vscode(&self) -> Vec<&'static str> {
184 match self {
185 ZedSyntaxToken::Attribute => vec!["entity.other.attribute-name"],
186 ZedSyntaxToken::Boolean => vec!["constant.language"],
187 ZedSyntaxToken::Comment => vec!["comment"],
188 ZedSyntaxToken::CommentDoc => vec!["comment.block.documentation"],
189 ZedSyntaxToken::Constant => vec!["constant.character"],
190 ZedSyntaxToken::Constructor => {
191 vec!["entity.name.function.definition.special.constructor"]
192 }
193 ZedSyntaxToken::Embedded => vec!["meta.embedded"],
194 ZedSyntaxToken::Emphasis => vec!["markup.italic"],
195 ZedSyntaxToken::EmphasisStrong => vec![
196 "markup.bold",
197 "markup.italic markup.bold",
198 "markup.bold markup.italic",
199 ],
200 ZedSyntaxToken::Enum => vec!["support.type.enum"],
201 ZedSyntaxToken::Function => vec!["entity.name.function", "variable.function"],
202 ZedSyntaxToken::Hint => vec![],
203 ZedSyntaxToken::Keyword => vec![
204 "keyword",
205 "keyword.control",
206 "keyword.control.fun",
207 "keyword.other.fn.rust",
208 "punctuation.accessor",
209 "entity.name.tag",
210 ],
211 ZedSyntaxToken::Label => vec![
212 "label",
213 "entity.name",
214 "entity.name.import",
215 "entity.name.package",
216 ],
217 ZedSyntaxToken::LinkText => vec!["markup.underline.link", "string.other.link"],
218 ZedSyntaxToken::LinkUri => vec!["markup.underline.link", "string.other.link"],
219 ZedSyntaxToken::Number => vec!["constant.numeric", "number"],
220 ZedSyntaxToken::Operator => vec!["operator", "keyword.operator"],
221 ZedSyntaxToken::Predictive => vec![],
222 ZedSyntaxToken::Preproc => vec![
223 "preproc",
224 "meta.preprocessor",
225 "punctuation.definition.preprocessor",
226 ],
227 ZedSyntaxToken::Primary => vec![],
228 ZedSyntaxToken::Property => vec![
229 "variable.member",
230 "support.type.property-name",
231 "variable.object.property",
232 "variable.other.field",
233 ],
234 ZedSyntaxToken::Punctuation => vec![
235 "punctuation",
236 "punctuation.section",
237 "punctuation.accessor",
238 "punctuation.separator",
239 "punctuation.definition.tag",
240 ],
241 ZedSyntaxToken::PunctuationBracket => vec![
242 "punctuation.bracket",
243 "punctuation.definition.tag.begin",
244 "punctuation.definition.tag.end",
245 ],
246 ZedSyntaxToken::PunctuationDelimiter => vec![
247 "punctuation.delimiter",
248 "punctuation.separator",
249 "punctuation.terminator",
250 ],
251 ZedSyntaxToken::PunctuationListMarker => {
252 vec!["markup.list punctuation.definition.list.begin"]
253 }
254 ZedSyntaxToken::PunctuationSpecial => vec!["punctuation.special"],
255 ZedSyntaxToken::String => vec!["string"],
256 ZedSyntaxToken::StringEscape => {
257 vec!["string.escape", "constant.character", "constant.other"]
258 }
259 ZedSyntaxToken::StringRegex => vec!["string.regex"],
260 ZedSyntaxToken::StringSpecial => vec!["string.special", "constant.other.symbol"],
261 ZedSyntaxToken::StringSpecialSymbol => {
262 vec!["string.special.symbol", "constant.other.symbol"]
263 }
264 ZedSyntaxToken::Tag => vec!["tag", "entity.name.tag", "meta.tag.sgml"],
265 ZedSyntaxToken::TextLiteral => vec!["text.literal", "string"],
266 ZedSyntaxToken::Title => vec!["title", "entity.name"],
267 ZedSyntaxToken::Type => vec![
268 "entity.name.type",
269 "entity.name.type.primitive",
270 "entity.name.type.numeric",
271 "keyword.type",
272 "support.type",
273 "support.type.primitive",
274 "support.class",
275 ],
276 ZedSyntaxToken::Variable => vec![
277 "variable",
278 "variable.language",
279 "variable.member",
280 "variable.parameter",
281 "variable.parameter.function-call",
282 ],
283 ZedSyntaxToken::VariableSpecial => vec![
284 "variable.special",
285 "variable.member",
286 "variable.annotation",
287 "variable.language",
288 ],
289 ZedSyntaxToken::Variant => vec!["variant"],
290 }
291 }
292}