add a formatter for CSI logs so that they're more easy to read

src/terminal/Parser.zig

@@ -78,6 +78,22 @@ pub const Action = union(enum) {
         intermediates: []u8,
         params: []u16,
         final: u8,
+
+        // Implement formatter for logging
+        pub fn format(
+            self: CSI,
+            comptime layout: []const u8,
+            opts: std.fmt.FormatOptions,
+            writer: anytype,
+        ) !void {
+            _ = layout;
+            _ = opts;
+            try std.fmt.format(writer, "ESC [ {s} {any} {c}", .{
+                self.intermediates,
+                self.params,
+                self.final,
+            });
+        }
     };
 
     pub const ESC = struct {

src/terminal/stream.zig

@@ -49,8 +49,9 @@ pub fn Stream(comptime Handler: type) type {
             const actions = self.parser.next(c);
             for (actions) |action_opt| {
                 // if (action_opt) |action| {
-                //     if (action != .print) {
+                //     switch (action) {
-                //         log.info("action: {}", .{action});
+                //         .print => |p| log.info("action: print '{u}'", .{p}),
+                //         else => log.info("action: {}", .{action}),
                 //     }
                 // }
                 switch (action_opt orelse continue) {