syntax.rs

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 {
}