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use std::collections::HashMap;
use tui::style::{Color, Style};
/// Color theme for syntax highlighting.
pub struct Theme {
scopes: Vec<String>,
mapping: HashMap<&'static str, Style>,
}
// let highlight_names: Vec<String> = [
// "attribute",
// "constant.builtin",
// "constant",
// "function.builtin",
// "function.macro",
// "function",
// "keyword",
// "operator",
// "property",
// "punctuation",
// "comment",
// "escape",
// "label",
// // "punctuation.bracket",
// "punctuation.delimiter",
// "string",
// "string.special",
// "tag",
// "type",
// "type.builtin",
// "constructor",
// "variable",
// "variable.builtin",
// "variable.parameter",
// "path",
// ];
impl Default for Theme {
fn default() -> Self {
let mapping = hashmap! {
"attribute" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"keyword" => Style::default().fg(Color::Rgb(236, 205, 186)), // almond
"punctuation" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"punctuation.delimiter" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"operator" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"property" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"variable.parameter" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
// TODO distinguish type from type.builtin?
"type" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"type.builtin" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"constructor" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"function" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"function.macro" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"comment" => Style::default().fg(Color::Rgb(105, 124, 129)), // sirocco
"variable.builtin" => Style::default().fg(Color::Rgb(159, 242, 143)), // mint
"constant" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"constant.builtin" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"string" => Style::default().fg(Color::Rgb(204, 204, 204)), // silver
"escape" => Style::default().fg(Color::Rgb(239, 186, 93)), // honey
// used for lifetimes
"label" => Style::default().fg(Color::Rgb(239, 186, 93)), // honey
// TODO: diferentiate number builtin
// TODO: diferentiate doc comment
// TODO: variable as lilac
// TODO: mod/use statements as white
// TODO: mod stuff as chamoise
// TODO: add "(scoped_identifier) @path" for std::mem::
//
// concat (ERROR) @syntax-error and "MISSING ;" selectors for errors
"module" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
"variable" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
"function.builtin" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
};
let scopes = mapping.keys().map(ToString::to_string).collect();
Self { mapping, scopes }
}
}
impl Theme {
pub fn get(&self, scope: &str) -> Style {
self.mapping
.get(scope)
.copied()
.unwrap_or_else(|| Style::default().fg(Color::Rgb(0, 0, 255)))
}
pub fn scopes(&self) -> &[String] {
&self.scopes
}
}
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