add color utils to log suite

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/log/color.rs

@@ -0,0 +1,27 @@
+use super::Level;
+
+/// @returns (Foreground, Background)
+#[inline]
+#[must_use]
+pub fn html(level: &Level) -> (&'static str, &'static str) {
+	match *level {
+		Level::TRACE => ("#000000", "#A0A0A0"),
+		Level::DEBUG => ("#000000", "#FFFFFF"),
+		Level::ERROR => ("#000000", "#FF0000"),
+		Level::WARN => ("#000000", "#FFFF00"),
+		Level::INFO => ("#FFFFFF", "#008E00"),
+	}
+}
+
+/// @returns (Foreground)
+#[inline]
+#[must_use]
+pub fn code_tag(level: &Level) -> &'static str {
+	match *level {
+		Level::TRACE => "#888888",
+		Level::DEBUG => "#C8C8C8",
+		Level::ERROR => "#FF0000",
+		Level::WARN => "#FFFF00",
+		Level::INFO => "#00FF00",
+	}
+}

src/core/log/mod.rs

@@ -1,3 +1,4 @@
+pub mod color;
 mod reload;
 
 pub use reload::ReloadHandle;