ANSI code renderer starts working but I have to make it utf8/wchar_t friendly.

ansi_parser.rl

@@ -3,6 +3,7 @@
 #include <charconv>
 #include "dbc.hpp"
 #include <SFML/Graphics.hpp>
+#include "ansi_parser.hpp"
 
 using namespace fmt;
 
@@ -16,34 +17,30 @@ using namespace fmt;
   action number {
     auto [ptr, ec] = std::from_chars(start, fpc, value);
     dbc::check(ec == std::errc(), "error in number parsing");
-    println("NUM: {}", value);
   }
 
-  action color24b {
-    println("color24b");
+  action color24b { }
+  action is_fg { target = color; }
+  action is_bg { target = bgcolor; }
+
+  action out {
+    write(bgcolor, color, fc);
   }
 
-  action is_fg { is_fg = true; }
-  action is_bg { is_fg = false; }
-
-  action any {
-    println("ANY: {}:{}", int(fc), fc);
-  }
-
-  action red { color.r = value; }
-  action blue { color.g = value; }
-  action green { color.b = value; }
+  action reset_fg { color = default_fg; }
+  action reset_bg { bgcolor = default_bg; }
 
+  action red { target.r = value; }
+  action blue { target.g = value; }
+  action green { target.b = value; }
   action start { value = 0; }
+  action end { }
 
-  action end {
-    println("fg? {}, sf:Color: {},{},{},{}", is_fg, color.r, color.g, color.b, color.a);
-  }
-
-  start = 0x1B "[";
+  ESC = 0x1B;
+  start = ESC "[";
   fg = "38;" %is_fg;
   bg = "48;" %is_bg;
-  reset = ("39" | "49");
+  reset = ("39" %reset_fg | "49" %reset_bg);
   num = digit+ >tstart %number;
   color256 = "5;";
   color24b = "2;";
@@ -56,27 +53,26 @@ using namespace fmt;
       ) "m" %end
   );
 
-  other = (any+ @any -- 0x1B)*;
+  other = (any+ @out -- ESC)*;
 
   main := (other :> ansi)**;
 }%%
 
 %% write data;
 
-bool parse_ansi(std::string_view codes) {
+bool parse_ansi(std::string_view codes, sf::Color default_fg, sf::Color default_bg, WriteCB write) {
   const char *start = NULL;
   int cs = 0;
   unsigned int value = 0;
   const char *p = codes.data();
   const char *pe = p + codes.size();
   const char *eof = pe;
-  bool is_fg = false;
-  sf::Color color;
+  sf::Color bgcolor(default_bg);
+  sf::Color color(default_fg);
+  sf::Color &target = bgcolor;
 
   %% write init;
   %% write exec;
 
-  print("PROCESSED {} CHARS of {}: {}", p - codes.data(), codes.size(), p);
-
-  return true;
+  return p - pe == 0;
 }