syntax.rs
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enum Language { Cmake, Cpp, Css, Html, Json, Lua, Markdown, Rust, } pub fn highlight(filename: &str, content: &str) -> String { // Our strategy is basically to determine the language through a heuristic, then highlight it if // we find a match. // If there's no match, or we're not sure, we don't highlight to be safe. match detect_language(filename, content) { Some(Cmake) => highlight_cmake(content), Some(Cpp) => highlight_cpp(content), Some(Css) => highlight_css(content), Some(Html) => highlight_html(content), Some(Json) => highlight_json(content), Some(Lua) => highlight_lua(content), Some(Markdown) => highlight_markdown(content), Some(Rust) => highlight_rust(content), None => content.to_string(), } } fn detect_language(filename: &str, content: &str) -> Option<Language> { if is_cmake(filename, content) { Some(Language::Cmake) } else if is_cpp(filename, content) { Some(Language::Cpp) } else if is_css(filename, content) { Some(Language::Css) } else if is_html(filename, content) { Some(Language::Html) } else if is_json(filename, content) { Some(Language::Json) } else if is_lua(filename, content) { Some(Language::Lua) } else if is_markdown(filename, content) { Some(Language::Markdown) } else if is_rust(filename, content) { Some(Language::Rust) } else { None } } fn is_cmake(filename: &str, _content: &str) -> bool { filename == "CMakeLists.txt" || filename.ends_with(".cmake") } fn is_cpp(filename: &str, _content: &str) -> bool { &[".hpp", ".inl", ".cpp"] .iter() .any(|&extension| filename.ends_with(extension)) } fn is_css(filename: &str, _content: &str) -> bool { filename.ends_with(".css") } fn is_html(filename: &str, _content: &str) -> bool { filename.ends_with(".html") } fn is_json(filename: &str, _content: &str) -> bool { filename.ends_with(".json") } fn is_lua(filename: &str, _content: &str) -> bool { filename.ends_with(".lua") } fn is_markdown(filename: &str, _content: &str) -> bool { &[".md", ".markdown"] .iter() .any(|&extension| filename.ends_with(extension)) } fn is_rust(filename: &str, _content: &str) -> bool { filename.ends_with(".rs") } fn highlight_cmake(content: &str) -> String { } fn highlight_cpp(content: &str) -> String { } fn highlight_css(content: &str) -> String { } fn highlight_html(content: &str) -> String { } fn highlight_json(content: &str) -> String { } fn highlight_lua(content: &str) -> String { } fn highlight_markdown(content: &str) -> String { } fn highlight_rust(content: &str) -> String { }