kc3-lang/kc3

diff --git a/.gitignore b/.gitignore
index f71f333..3db8edf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,6 +44,7 @@ libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo_debug
 .libs/
 *.lo
 *.o
+osx/c3-v*
 test/facts_test_dump_file.facts
 test/facts_test_log_add.facts
 test/facts_test_log_remove.facts
diff --git a/lib/c3/0.1/map.facts b/lib/c3/0.1/map.facts
new file mode 100644
index 0000000..de43112
--- /dev/null
+++ b/lib/c3/0.1/map.facts
@@ -0,0 +1,11 @@
+%{module: C3.Facts.Dump,
+  version: 1}
+add {Map, :is_a, :module}
+add {Map, :symbol, Map.cast}
+add {Map, :symbol, Map.map}
+add {Map, :symbol, Map.to_list}
+replace {Map.cast, :cfn, cfn Map "map_cast" (Tag, Result)}
+replace {Map.map, :cfn, cfn List "map_map" (Map, Fn, Result)}
+replace {Map.to_list, :fn, fn (%{} = map) {
+  Map.map(map, fn (k, v) { {k, v} })
+}}
diff --git a/libc3/c3.h b/libc3/c3.h
index b5f798d..9e66e49 100644
--- a/libc3/c3.h
+++ b/libc3/c3.h
@@ -51,6 +51,8 @@
 #include "env.h"
 #include "error.h"
 #include "eval.h"
+#include "f32.h"
+#include "f64.h"
 #include "fact.h"
 #include "facts.h"
 #include "facts_cursor.h"
diff --git a/libc3/f64.c b/libc3/f64.c
index 09fc4b5..1e45af7 100644
--- a/libc3/f64.c
+++ b/libc3/f64.c
@@ -12,6 +12,7 @@
  */
 #include <assert.h>
 #include <err.h>
+#include <stdlib.h>
 #include "integer.h"
 #include "tag.h"
 #include "f64.h"
@@ -88,3 +89,9 @@ f64 * f64_copy (const f64 *src, f64 *dest)
   *dest = *src;
   return dest;
 }
+
+f64 * f64_random (f64 *dest)
+{
+  *dest = (f64) random() / (((u32) 1 << 31) - 1);
+  return dest;
+}
diff --git a/libc3/f64.h b/libc3/f64.h
index 4febe84..6feefac 100644
--- a/libc3/f64.h
+++ b/libc3/f64.h
@@ -15,7 +15,8 @@
 
 #include "types.h"
 
-f64 f64_cast (s_tag *tag);
+f64   f64_cast (s_tag *tag);
 f64 * f64_copy (const f64 *src, f64 *dest);
+f64 * f64_random (f64 *dest);
 
 #endif /* LIBC3_F64_H */
diff --git a/libc3/list.h b/libc3/list.h
index c0b3b0b..1bef506 100644
--- a/libc3/list.h
+++ b/libc3/list.h
@@ -37,7 +37,8 @@ s_list * list_delete (s_list *list);
 void     list_delete_all (s_list *list);
 
 /* Observers */
-s_list **  list_copy (const s_list **src, s_list **dest);
+s_list ** list_cast (const s_tag *tag, s_list **list);
+s_list ** list_copy (const s_list **src, s_list **dest);
 sw        list_length (const s_list *list);
 s_list *  list_next (const s_list *list);
 s_array * list_to_array (s_list *list, const s_sym *type,
diff --git a/libc3/map.c b/libc3/map.c
index d993f3e..b28f7e8 100644
--- a/libc3/map.c
+++ b/libc3/map.c
@@ -33,6 +33,16 @@ s_tag * map_access (const s_map *map, const s_tag *key, s_tag *value)
   return map_get(map, key, value);
 }
 
+s_map * map_cast (const s_tag *tag, s_map *map)
+{
+  assert(tag);
+  if (tag->type == TAG_MAP) {
+    map_copy(&tag->data.map, map);
+    return map;
+  }
+  return NULL;
+}
+
 void map_clean (s_map *map)
 {
   uw i = 0;
@@ -135,6 +145,19 @@ s_map * map_init_from_lists (s_map *map, const s_list *keys,
   return NULL;
 }
 
+s_list ** map_map (const s_map *map, const s_fn *fn, s_list **result)
+{
+  assert(map);
+  assert(fn);
+  assert(result);
+  (void) map;
+  (void) fn;
+  (void) result;
+  assert(! "not implemented");
+  errx(1, "not implemented");
+  return NULL;
+}
+
 s_map * map_new (uw count)
 {
   s_map *map;
diff --git a/libc3/map.h b/libc3/map.h
index 9025dcc..31ebd1f 100644
--- a/libc3/map.h
+++ b/libc3/map.h
@@ -37,6 +37,7 @@ s_map * map_copy (const s_map *src, s_map *dest);
 
 /* Operators */
 s_tag * map_access (const s_map *map, const s_tag *key, s_tag *value);
+s_map * map_cast (const s_tag *tag, s_map *map);
 s_tag * map_get (const s_map *map, const s_tag *key, s_tag *dest);
 s_map * map_update (const s_map *map, const s_tag *key,
                     const s_tag *value, s_map *dest);
diff --git a/libc3/sequence.c b/libc3/sequence.c
index 60f22c1..aab9017 100644
--- a/libc3/sequence.c
+++ b/libc3/sequence.c
@@ -14,13 +14,14 @@
 #include "sequence.h"
 
 s_sequence * sequence_init (s_sequence *sequence, f64 duration,
-                            const s8 *title,
+                            const s8 *title, f_sequence_load load,
                             f_sequence_render render)
 {
   assert(sequence);
   sequence->t = 0.0;
   sequence->duration = duration;
   sequence->title = title;
+  sequence->load = load;
   sequence->render = render;
   return sequence;
 }
diff --git a/libc3/sequence.h b/libc3/sequence.h
index dbccd4b..d4a2c53 100644
--- a/libc3/sequence.h
+++ b/libc3/sequence.h
@@ -16,7 +16,7 @@
 #include "types.h"
 
 s_sequence * sequence_init (s_sequence *sequence, f64 duration,
-                            const s8 *title,
+                            const s8 *title, f_sequence_load load,
                             f_sequence_render render);
 
 #endif /* LIBC3_SEQUENCE_H */
diff --git a/libc3/types.h b/libc3/types.h
index c9e31f4..fe101db 100644
--- a/libc3/types.h
+++ b/libc3/types.h
@@ -181,7 +181,9 @@ typedef sw (* f_buf_inspect) (s_buf *buf, const void *x);
 typedef sw (* f_buf_inspect_size) (const void *x);
 typedef sw (* f_buf_parse) (s_buf *buf, void *dest);
 typedef void * (* f_copy) (const void *a, void *b);
-typedef void (* f_sequence_render) (void *window, void *render_context,
+typedef bool (* f_sequence_load) (s_sequence *seq);
+typedef void (* f_sequence_render) (void *window,
+                                    void *render_context,
                                     s_sequence *seq);
 
 #define CHARACTER_MAX S32_MAX
@@ -454,9 +456,10 @@ struct list {
 };
 
 struct sequence {
-  s_tag data;
+  s_tag tag;
   f64 dt;
   f64 duration;
+  f_sequence_load load;
   f_sequence_render render;
   f64 t;
   s_time t0;
diff --git a/libc3/window/cairo/Makefile b/libc3/window/cairo/Makefile
index 8b586d4..6e1f3c7 100644
--- a/libc3/window/cairo/Makefile
+++ b/libc3/window/cairo/Makefile
@@ -12,6 +12,7 @@
 
 build:
 	${MAKE} ${LIB}
+	${MAKE} -C demo build
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz build; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 build; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb build; fi
@@ -24,39 +25,47 @@ all:
 
 asan:
 	${MAKE} ${LIB_ASAN}
+	${MAKE} -C demo asan
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz asan; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 asan; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb asan; fi
 
 clean:
+	${MAKE} -C demo clean
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz clean; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 clean; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb clean; fi
 
 clean_cov:
+	${MAKE} -C demo clean_cov
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz clean_cov; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 clean_cov; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb clean_cov; fi
 
 cov:
 	${MAKE} ${LIB_COV}
+	${MAKE} -C demo cov
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz cov; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 cov; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb cov; fi
 
 debug:
 	${MAKE} ${LIB_DEBUG}
+	${MAKE} -C demo debug
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz debug; else if ${HAVE_WIN32}; then ${MAKE} -C win32 debug; else if ${HAVE_XCB}; then ${MAKE} -C xcb debug; fi; fi; fi
 
 demo: build
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz demo; else if ${HAVE_WIN32}; then ${MAKE} -C win32 demo; else if ${HAVE_XCB}; then ${MAKE} -C xcb demo; fi; fi; fi
 
 distclean:
+	rm -rf ${DISTCLEANFILES}
+	${MAKE} -C demo distclean
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz distclean; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 distclean; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb distclean; fi
 
 gcovr:
+	${MAKE} -C demo gcovr
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz gcovr; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 gcovr; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb gcovr; fi
@@ -78,6 +87,7 @@ lldb_demo: debug
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz lldb_demo; else if ${HAVE_WIN32}; then ${MAKE} -C win32 lldb_demo; else if ${HAVE_XCB}; then ${MAKE} -C xcb lldb_demo; fi; fi
 
 test:
+	${MAKE} -C demo test
 	if ${HAVE_COCOA}; then ${MAKE} -C quartz test; fi
 	if ${HAVE_WIN32}; then ${MAKE} -C win32 test; fi
 	if ${HAVE_XCB}; then ${MAKE} -C xcb test; fi
diff --git a/libc3/window/cairo/c3_window_cairo_demo.c b/libc3/window/cairo/c3_window_cairo_demo.c
deleted file mode 100644
index 26fa7f3..0000000
--- a/libc3/window/cairo/c3_window_cairo_demo.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#include <assert.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <libc3/c3.h>
-#include <cairo/cairo.h>
-#include <xkbcommon/xkbcommon.h>
-#include "../window.h"
-#include "window_cairo.h"
-#include "c3_window_cairo_demo.h"
-#include "types.h"
-
-bool c3_window_cairo_demo_button (s_window_cairo *window, u8 button,
-                                  sw x, sw y)
-{
-  assert(window);
-  (void) window;
-  printf("c3_window_cairo_demo_button: %lu (%ld, %ld)\n", (uw) button, x, y);
-  return true;
-}
-
-bool c3_window_cairo_demo_key (s_window_cairo *window, uw keysym)
-{
-  char keysym_name[64];
-  assert(window);
-  (void) window;
-  switch (keysym) {
-  case XKB_KEY_Escape:
-  case XKB_KEY_q:
-    g_c3_exit_code = 0;
-    return false;
-  case XKB_KEY_Left:
-    if (! window_set_sequence_pos((s_window *) window,
-                                  (window->sequence_pos +
-                                   window->sequence_count - 1) %
-                                  window->sequence_count))
-      return false;
-    break;
-  case XKB_KEY_Right:
-    if (! window_set_sequence_pos((s_window *) window,
-                                  (window->sequence_pos + 1) %
-                                  window->sequence_count))
-      return false;
-    break;
-  default:
-    xkb_keysym_get_name(keysym, keysym_name, sizeof(keysym_name));
-    printf("c3_window_cairo_demo_key: %lu %s\n", keysym, keysym_name);
-  }
-  return true;
-}
-
-bool c3_window_cairo_demo_load (s_window_cairo *window)
-{
-  assert(window->sequence_count == C3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
-  window_cairo_sequence_init(window->sequence, 8.0,
-                             "01. Background rectangles",
-                             c3_window_cairo_demo_render_bg_rect);
-  window_cairo_sequence_init(window->sequence + 1, 30.0,
-                             "02. Lightspeed",
-                             c3_window_cairo_demo_render_lightspeed);
-  window_set_sequence_pos((s_window *) window, 0);
-  return true;
-}
-
-bool c3_window_cairo_demo_render (s_window_cairo *window,
-                                  cairo_t *cr)
-{
-  s_sequence *seq;
-  cairo_text_extents_t te;
-  assert(window);
-  assert(cr);
-  if (! window_animate((s_window *) window))
-    return false;
-  seq = window->sequence + window->sequence_pos;
-  seq->render(window, cr, seq);
-  /* text */
-  cairo_set_font_size(cr, 20);
-  cairo_select_font_face(cr, "Courier New",
-                          CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
-  cairo_text_extents(cr, seq->title, &te);
-  /* text bg */
-  cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 21);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 20);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 19);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 21);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 19);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 19);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 20);
-  cairo_show_text(cr, seq->title);
-  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 21);
-  cairo_show_text(cr, seq->title);
-  /* text */
-  cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
-  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 20);
-  cairo_show_text(cr, seq->title);
-  /* progress bar */
-  cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-  cairo_rectangle(cr, 19, window->h - 12,
-                  (window->w - 40.0) * seq->t / seq->duration + 2,
-                  4);
-  cairo_fill(cr);
-  cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
-  cairo_rectangle(cr, 20, window->h - 11,
-                  (window->w - 40.0) * seq->t / seq->duration,
-                  2);
-  cairo_fill(cr);
-  return true;
-}
-
-void c3_window_cairo_demo_render_bg_rect (s_window_cairo *window,
-                                          cairo_t *cr,
-                                          s_sequence *seq)
-{
-#define C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX 8
-  const s_rgb color[C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX] = {
-    {1, 1, 1},
-    {1, 0, 0},
-    {1, 1, 0},
-    {0, 1, 0},
-    {0, 1, 1},
-    {0, 0, 1},
-    {1, 0, 1},
-    {0, 0, 0}
-  };
-  u8 c1;
-  u8 c2;
-  double p;
-  double q;
-  s_rgb rgb;
-  c1 = (u8) trunc(seq->t) % C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX;
-  c2 = (u8) trunc(seq->t + 1.0) % C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX;
-  p = fmod(seq->t, 1.0);
-  q = 1.0 - p;
-  rgb.r = color[c1].r * q + color[c2].r * p;
-  rgb.g = color[c1].g * q + color[c2].g * p;
-  rgb.b = color[c1].b * q + color[c2].b * p;
-  cairo_set_source_rgb(cr, rgb.r, rgb.g, rgb.b);
-  cairo_rectangle(cr, 0, 0, window->w, window->h);
-  cairo_fill(cr);
-}
-
-f64 frandom (void)
-{
-  return (double) random() / (((sw) 1 << 31) - 1);
-}
-
-static void star_init (s_tag *star)
-{
-  tag_init_map(star, 3);
-  tag_init_sym(star->data.map.keys, sym_1("speed"));
-  tag_init_f64(star->data.map.values, 0.0);
-  tag_init_sym(star->data.map.keys + 1, sym_1("x"));
-  tag_init_f64(star->data.map.values + 1, 2.0 * frandom() - 1.0);
-  tag_init_sym(star->data.map.keys + 2, sym_1("y"));
-  tag_init_f64(star->data.map.values + 2, 2.0 * frandom() - 1.0);
-}
-
-static void star_render (s_tag *star, s_window_cairo *window,
-                         cairo_t *cr, s_sequence *seq)
-{
-  f64 q;
-  f64 *speed;
-  f64 *x;
-  f64 *y;
-  (void) window;
-  speed = &star->data.map.values[0].data.f64;
-  x = &star->data.map.values[1].data.f64;
-  y = &star->data.map.values[2].data.f64;
-  cairo_set_line_width(cr, 0.01);
-  cairo_set_source_rgb(cr, 1, 1, 1);
-  cairo_move_to(cr, *x, *y);
-  q = (1 + *speed / 10);
-  cairo_line_to(cr, *x * q, *y * q);
-  cairo_stroke(cr);
-  q = (1 + *speed / 100);
-  *x = *x * q;
-  *y = *y * q;
-  *speed += seq->dt;
-  if (*x < -1.0 || *x > 1.0 || *y < -1.0 || *y > 1.0)
-    star_init(star);
-}
-
-void c3_window_cairo_demo_render_lightspeed (s_window_cairo *window,
-                                             cairo_t *cr,
-                                             s_sequence *seq)
-{
-  uw i;
-  cairo_matrix_t matrix;
-  cairo_get_matrix(cr, &matrix);
-  cairo_scale(cr, window->w / 2.0, window->h / 2.0);
-  cairo_translate(cr, 1.0, 1.0);
-  cairo_set_source_rgb(cr, 0, 0, 0);
-  cairo_rectangle(cr, -1, -1, 2, 2);
-  cairo_fill(cr);
-  if (seq->data.type == TAG_VOID) {
-    tag_init_tuple(&seq->data, C3_WINDOW_CAIRO_DEMO_LIGHTSPEED_STARS);
-    i = 0;
-    while (i < C3_WINDOW_CAIRO_DEMO_LIGHTSPEED_STARS) {
-      star_init(seq->data.data.tuple.tag + i);
-      i++;
-    }
-  }
-  i = 0;
-  while (i < C3_WINDOW_CAIRO_DEMO_LIGHTSPEED_STARS) {
-    star_render(seq->data.data.tuple.tag + i, window, cr, seq);
-    i++;
-  }
-  cairo_set_matrix(cr, &matrix);
-}
-
-bool c3_window_cairo_demo_resize (s_window_cairo *window,
-                                  uw w, uw h)
-{
-  assert(window);
-  (void) window;
-  (void) w;
-  (void) h;
-  return true;
-}
diff --git a/libc3/window/cairo/c3_window_cairo_demo.h b/libc3/window/cairo/c3_window_cairo_demo.h
deleted file mode 100644
index 121546d..0000000
--- a/libc3/window/cairo/c3_window_cairo_demo.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#ifndef LIBC3_WINDOW_CAIRO_DEMO_H
-#define LIBC3_WINDOW_CAIRO_DEMO_H
-
-#include <libc3/types.h>
-#include "types.h"
-
-#define C3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT 2
-#define C3_WINDOW_CAIRO_DEMO_LIGHTSPEED_STARS 100
-
-bool c3_window_cairo_demo_button (s_window_cairo *window, u8 button,
-                                  sw x, sw y);
-bool c3_window_cairo_demo_key (s_window_cairo *window, uw keysym);
-bool c3_window_cairo_demo_load (s_window_cairo *window);
-bool c3_window_cairo_demo_render (s_window_cairo *window, cairo_t *cr);
-void c3_window_cairo_demo_render_bg_rect (s_window_cairo *window,
-                                          cairo_t *cr,
-                                          s_sequence *seq);
-void c3_window_cairo_demo_render_lightspeed (s_window_cairo *window,
-                                             cairo_t *cr,
-                                             s_sequence *seq);
-bool c3_window_cairo_demo_resize (s_window_cairo *window, uw w, uw h);
-
-#endif /* LIBC3_WINDOW_CAIRO_DEMO_H */
diff --git a/libc3/window/cairo/configure b/libc3/window/cairo/configure
index 076523b..1014bfb 100755
--- a/libc3/window/cairo/configure
+++ b/libc3/window/cairo/configure
@@ -152,6 +152,8 @@ echo "HAVE_WIN32 = $HAVE_WIN32" >> ${CONFIG_MK}
 update_config_mk
 env_reset
 
+( cd demo && ./configure; )
+
 if ${HAVE_COCOA}; then
     ( cd quartz && ./configure; )
 fi
diff --git a/libc3/window/cairo/demo/Makefile b/libc3/window/cairo/demo/Makefile
new file mode 100644
index 0000000..10f0658
--- /dev/null
+++ b/libc3/window/cairo/demo/Makefile
@@ -0,0 +1,65 @@
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+CLEANFILES = *.a *.gcno *.la .libs *.lo *.o
+
+CLEANFILES_COV = *.css *.gcda *.html .libs/*.gcda
+
+CLEANFILES += ${CLEANFILES_COV}
+
+DISTCLEANFILES = ${CLEANFILES} config.h config.mk
+
+build:
+	${MAKE} ${LIB}
+
+all:
+	${MAKE} build
+	if ${HAVE_GCOV}; then ${MAKE} cov; fi
+	${MAKE} debug
+	if ${HAVE_ASAN}; then ${MAKE} asan; fi
+
+asan:
+	${MAKE} ${LIB_ASAN}
+
+clean:
+	rm -rf ${CLEANFILES}
+
+clean_cov:
+	rm -rf ${CLEANFILES_COV}
+
+cov:
+	${MAKE} ${LIB_COV}
+
+debug:
+	${MAKE} ${LIB_DEBUG}
+
+distclean:
+	rm -rf ${DISTCLEANFILES}
+
+gcovr:
+	gcovr --gcov-executable ${GCOV} --html-details demo.html
+
+update_sources:
+	./update_sources
+
+.PHONY: \
+	all \
+	asan \
+	build \
+	clean \
+	cov \
+	debug \
+	distclean \
+	update_sources
+
+include config.mk
+include sources.mk
diff --git a/libc3/window/cairo/demo/bg_rect.c b/libc3/window/cairo/demo/bg_rect.c
new file mode 100644
index 0000000..6f7d5ee
--- /dev/null
+++ b/libc3/window/cairo/demo/bg_rect.c
@@ -0,0 +1,55 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <assert.h>
+#include <math.h>
+#include <libc3/c3.h>
+#include "../types.h"
+#include "bg_rect.h"
+
+bool bg_rect_load (s_sequence *seq)
+{
+  (void) seq;
+  return true;
+}
+
+void bg_rect_render (s_window_cairo *window,
+                     cairo_t *cr,
+                     s_sequence *seq)
+{
+#define C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX 8
+  const s_rgb color[C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX] = {
+    {1, 1, 1},
+    {1, 0, 0},
+    {1, 1, 0},
+    {0, 1, 0},
+    {0, 1, 1},
+    {0, 0, 1},
+    {1, 0, 1},
+    {0, 0, 0}
+  };
+  u8 c1;
+  u8 c2;
+  double p;
+  double q;
+  s_rgb rgb;
+  c1 = (u8) trunc(seq->t) % C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX;
+  c2 = (u8) trunc(seq->t + 1.0) % C3_WINDOW_CAIRO_DEMO_BG_RECT_COLOR_MAX;
+  p = fmod(seq->t, 1.0);
+  q = 1.0 - p;
+  rgb.r = color[c1].r * q + color[c2].r * p;
+  rgb.g = color[c1].g * q + color[c2].g * p;
+  rgb.b = color[c1].b * q + color[c2].b * p;
+  cairo_set_source_rgb(cr, rgb.r, rgb.g, rgb.b);
+  cairo_rectangle(cr, 0, 0, window->w, window->h);
+  cairo_fill(cr);
+}
diff --git a/libc3/window/cairo/demo/bg_rect.h b/libc3/window/cairo/demo/bg_rect.h
new file mode 100644
index 0000000..96f2d3e
--- /dev/null
+++ b/libc3/window/cairo/demo/bg_rect.h
@@ -0,0 +1,23 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#ifndef BG_RECT_H
+#define BG_RECT_H
+
+#include "../types.h"
+
+bool bg_rect_load (s_sequence *seq);
+void bg_rect_render (s_window_cairo *window,
+                     cairo_t *cr,
+                     s_sequence *seq);
+
+#endif /* BG_RECT_H */
diff --git a/libc3/window/cairo/demo/configure b/libc3/window/cairo/demo/configure
new file mode 100755
index 0000000..feb9fd9
--- /dev/null
+++ b/libc3/window/cairo/demo/configure
@@ -0,0 +1,137 @@
+#!/bin/sh
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+set -e
+
+export SRC_TOP="$(dirname "$PWD")"
+
+. ../../../../config.subr
+
+LIB=libc3_window_cairo_demo.la
+LIB_ASAN=libc3_window_cairo_demo_asan.la
+LIB_COV=libc3_window_cairo_demo_cov.la
+LIB_DEBUG=libc3_window_cairo_demo_debug.la
+
+echo "LIB = $LIB" >> ${CONFIG_MK}
+echo "LIB_ASAN = $LIB_ASAN" >> ${CONFIG_MK}
+echo "LIB_COV = $LIB_COV" >> ${CONFIG_MK}
+echo "LIB_DEBUG = $LIB_DEBUG" >> ${CONFIG_MK}
+
+. ./sources.sh
+
+OBJECTS="$(c2ext .main.lo "$SOURCES")"
+echo "OBJECTS = $OBJECTS" >> ${CONFIG_MK}
+OBJECTS_ASAN="$(c2ext .asan.lo "$SOURCES")"
+OBJECTS_COV="$(c2ext .cov.lo "$SOURCES")"
+OBJECTS_DEBUG="$(c2ext .debug.lo "$SOURCES")"
+
+# Common config for all targets
+CPPFLAGS="-I../../../../libffi/include -I../../../.. $CPPFLAGS"
+CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
+LDFLAGS="--shared -no-undefined ${LDFLAGS}"
+LIBS="$LIBS -rpath ${PREFIX}/lib"
+config_asan
+config_gnu
+pkg_config cairo
+pkg_config libbsd-overlay
+pkg_config xkbcommon
+config_define PREFIX "\"${PREFIX}\""
+
+# Address Sanitizer config
+CFLAGS_ASAN="$CFLAGS -O1 -fsanitize=address -fno-omit-frame-pointer -g"
+LDFLAGS_ASAN="$LDFLAGS"
+LIBS_LOCAL_ASAN="../libc3_window_cairo_asan.la"
+LIBS_ASAN="$LIBS_LOCAL_ASAN $LIBS"
+
+# Coverage config
+CFLAGS_COV="$CFLAGS -ftest-coverage -fprofile-arcs -fprofile-generate"
+LDFLAGS_COV="$LDFLAGS --coverage"
+LIBS_LOCAL_COV="../libc3_window_cairo_cov.la"
+LIBS_COV="$LIBS_LOCAL_COV $LIBS"
+
+# Debug config
+CFLAGS_DEBUG="$CFLAGS -DDEBUG -O0 -g"
+LDFLAGS_DEBUG="$LDFLAGS"
+LIBS_LOCAL_DEBUG="../libc3_window_cairo_debug.la"
+LIBS_DEBUG="$LIBS_LOCAL_DEBUG $LIBS"
+
+# Main config
+DEFAULT_CFLAGS="-O2 -pipe"
+if [ "x$ENV_CFLAGS" = "x" ]; then
+    CFLAGS="$CFLAGS $DEFAULT_CFLAGS"
+fi
+CFLAGS="$CFLAGS -DNDEBUG"
+LIBS_LOCAL="../libc3_window_cairo.la"
+LIBS="$LIBS_LOCAL $LIBS"
+
+echo "LIB = $LIB" >> ${CONFIG_MK}
+echo "HAVE_ASAN = $HAVE_ASAN" >> ${CONFIG_MK}
+echo "CPPFLAGS = $CPPFLAGS" >> ${CONFIG_MK}
+echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
+echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
+echo "LIBS = $LIBS" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "LIB_ASAN = $LIB_ASAN" >> ${CONFIG_MK}
+echo "CFLAGS_ASAN = $CFLAGS_ASAN" >> ${CONFIG_MK}
+echo "LDFLAGS_ASAN = $LDFLAGS_ASAN" >> ${CONFIG_MK}
+echo "LIBS_ASAN = $LIBS_ASAN" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "LIB_COV = $LIB_COV" >> ${CONFIG_MK}
+echo "CFLAGS_COV = $CFLAGS_COV" >> ${CONFIG_MK}
+echo "LDFLAGS_COV = $LDFLAGS_COV" >> ${CONFIG_MK}
+echo "LIBS_COV = $LIBS_COV" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "LIB_DEBUG = $LIB_DEBUG" >> ${CONFIG_MK}
+echo "CFLAGS_DEBUG = $CFLAGS_DEBUG" >> ${CONFIG_MK}
+echo "LDFLAGS_DEBUG = $LDFLAGS_DEBUG" >> ${CONFIG_MK}
+echo "LIBS_DEBUG = $LIBS_DEBUG" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$LIB: $LIBS_LOCAL $OBJECTS" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} -shared \${LDFLAGS} ${OBJECTS} \${LIBS} -rpath ${LIBDIR} -o ${LIB}" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$LIB_ASAN: $LIBS_LOCAL_ASAN $OBJECTS_ASAN" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} -shared \${LDFLAGS_ASAN} ${OBJECTS_ASAN} \${LIBS_ASAN} -rpath ${LIBDIR} -o ${LIB_ASAN}" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$LIB_COV: $LIBS_LOCAL_COV $OBJECTS_COV" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} -shared \${LDFLAGS_COV} ${OBJECTS_COV} \${LIBS_COV} -rpath ${LIBDIR} -o ${LIB_COV}" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$LIB_DEBUG: $LIBS_LOCAL_DEBUG $OBJECTS_DEBUG" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} -shared \${LDFLAGS_DEBUG} ${OBJECTS_DEBUG} \${LIBS_DEBUG} -rpath ${LIBDIR} -o ${LIB_DEBUG}" >> ${CONFIG_MK}
+
+for SRC in $SOURCES; do
+    echo >> ${CONFIG_MK}
+    SRC_LO="$(c2ext .main.lo "$SRC")"
+    c_ext_rule .main.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS} -c $SRC -o $SRC_LO" >> ${CONFIG_MK}
+
+    echo >> ${CONFIG_MK}
+    SRC_ASAN_LO="$(c2ext .asan.lo "$SRC")"
+    c_ext_rule .asan.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_ASAN} -c $SRC -o $SRC_ASAN_LO" >> ${CONFIG_MK}
+
+    echo >> ${CONFIG_MK}
+    SRC_COV_LO="$(c2ext .cov.lo "$SRC")"
+    c_ext_rule .cov.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_COV} -c $SRC -o $SRC_COV_LO" >> ${CONFIG_MK}
+
+    echo >> ${CONFIG_MK}
+    SRC_DEBUG_LO="$(c2ext .debug.lo "$SRC")"
+    c_ext_rule .debug.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_DEBUG} -c $SRC -o $SRC_DEBUG_LO" >> ${CONFIG_MK}
+done
+
+update_config_mk
diff --git a/libc3/window/cairo/demo/lightspeed.c b/libc3/window/cairo/demo/lightspeed.c
new file mode 100644
index 0000000..51067d5
--- /dev/null
+++ b/libc3/window/cairo/demo/lightspeed.c
@@ -0,0 +1,87 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <libc3/c3.h>
+#include "lightspeed.h"
+
+static void star_init (s_tag *star)
+{
+  f64 x;
+  f64 y;
+  f64_random(&x);
+  f64_random(&y);
+  tag_init_map(star, 3);
+  tag_init_sym(star->data.map.keys, sym_1("speed"));
+  tag_init_f64(star->data.map.values, 0.0);
+  tag_init_sym(star->data.map.keys + 1, sym_1("x"));
+  tag_init_f64(star->data.map.values + 1, 2.0 * x - 1.0);
+  tag_init_sym(star->data.map.keys + 2, sym_1("y"));
+  tag_init_f64(star->data.map.values + 2, 2.0 * y - 1.0);
+}
+
+static void star_render (s_tag *star, s_window_cairo *window,
+                         cairo_t *cr, s_sequence *seq)
+{
+  f64 q;
+  f64 *speed;
+  f64 *x;
+  f64 *y;
+  (void) window;
+  speed = &star->data.map.values[0].data.f64;
+  x = &star->data.map.values[1].data.f64;
+  y = &star->data.map.values[2].data.f64;
+  cairo_set_line_width(cr, 0.004);
+  cairo_set_source_rgb(cr, 1, 1, 1);
+  cairo_move_to(cr, *x, *y);
+  q = (1 + *speed / 20);
+  cairo_line_to(cr, *x * q, *y * q);
+  cairo_stroke(cr);
+  q = (1 + *speed / 100);
+  *x = *x * q;
+  *y = *y * q;
+  *speed += seq->dt;
+  if (*x < -1.0 || *x > 1.0 || *y < -1.0 || *y > 1.0)
+    star_init(star);
+}
+
+bool lightspeed_load (s_sequence *seq)
+{
+  uw i;
+  tag_clean(&seq->tag);
+  tag_init_tuple(&seq->tag, LIGHTSPEED_STARS);
+  i = 0;
+  while (i < LIGHTSPEED_STARS) {
+    star_init(seq->tag.data.tuple.tag + i);
+    i++;
+  }
+  return true;
+}
+
+void lightspeed_render (s_window_cairo *window,
+                        cairo_t *cr,
+                        s_sequence *seq)
+{
+  uw i;
+  cairo_matrix_t matrix;
+  cairo_get_matrix(cr, &matrix);
+  cairo_scale(cr, window->w / 2.0, window->h / 2.0);
+  cairo_translate(cr, 1.0, 1.0);
+  cairo_set_source_rgb(cr, 0, 0, 0);
+  cairo_rectangle(cr, -1, -1, 2, 2);
+  cairo_fill(cr);
+  i = 0;
+  while (i < LIGHTSPEED_STARS) {
+    star_render(seq->tag.data.tuple.tag + i, window, cr, seq);
+    i++;
+  }
+  cairo_set_matrix(cr, &matrix);
+}
diff --git a/libc3/window/cairo/demo/lightspeed.h b/libc3/window/cairo/demo/lightspeed.h
new file mode 100644
index 0000000..72d973c
--- /dev/null
+++ b/libc3/window/cairo/demo/lightspeed.h
@@ -0,0 +1,25 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#ifndef LIGHTSPEED_H
+#define LIGHTSPEED_H
+
+#include "../types.h"
+
+#define LIGHTSPEED_STARS 1000
+
+bool lightspeed_load (s_sequence *seq);
+void lightspeed_render (s_window_cairo *window,
+                        cairo_t *cr,
+                        s_sequence *seq);
+
+#endif /* LIGHTSPEED_H */
diff --git a/libc3/window/cairo/demo/sources.mk b/libc3/window/cairo/demo/sources.mk
new file mode 100644
index 0000000..80ba532
--- /dev/null
+++ b/libc3/window/cairo/demo/sources.mk
@@ -0,0 +1,11 @@
+# sources.mk generated by update_sources
+HEADERS = \
+	bg_rect.h \
+	lightspeed.h \
+	window_cairo_demo.h \
+
+SOURCES = \
+	bg_rect.c \
+	lightspeed.c \
+	window_cairo_demo.c \
+
diff --git a/libc3/window/cairo/demo/sources.sh b/libc3/window/cairo/demo/sources.sh
new file mode 100644
index 0000000..3effa5f
--- /dev/null
+++ b/libc3/window/cairo/demo/sources.sh
@@ -0,0 +1,3 @@
+# sources.sh generated by update_sources
+HEADERS='bg_rect.h lightspeed.h window_cairo_demo.h '
+SOURCES='bg_rect.c lightspeed.c window_cairo_demo.c '
diff --git a/libc3/window/cairo/demo/update_sources b/libc3/window/cairo/demo/update_sources
new file mode 100755
index 0000000..0afdc30
--- /dev/null
+++ b/libc3/window/cairo/demo/update_sources
@@ -0,0 +1,26 @@
+#!/bin/sh
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+. ../../../../config.subr
+
+echo "# sources.mk generated by update_sources" > ${SOURCES_MK}
+echo "# sources.sh generated by update_sources" > ${SOURCES_SH}
+
+HEADERS="$(ls *.h | sort)"
+sources HEADERS "$HEADERS"
+
+SOURCES="$(ls *.c | sort)"
+sources SOURCES "$SOURCES"
+
+update_sources_mk
+update_sources_sh
diff --git a/libc3/window/cairo/demo/window_cairo_demo.c b/libc3/window/cairo/demo/window_cairo_demo.c
new file mode 100644
index 0000000..b63cd81
--- /dev/null
+++ b/libc3/window/cairo/demo/window_cairo_demo.c
@@ -0,0 +1,138 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <libc3/c3.h>
+#include <xkbcommon/xkbcommon.h>
+#include "../../window.h"
+#include "../window_cairo.h"
+#include "window_cairo_demo.h"
+#include "../types.h"
+#include "bg_rect.h"
+#include "lightspeed.h"
+
+bool window_cairo_demo_button (s_window_cairo *window, u8 button,
+                                  sw x, sw y)
+{
+  assert(window);
+  (void) window;
+  printf("c3_window_cairo_demo_button: %lu (%ld, %ld)\n", (uw) button, x, y);
+  return true;
+}
+
+bool window_cairo_demo_key (s_window_cairo *window, uw keysym)
+{
+  char keysym_name[64];
+  assert(window);
+  (void) window;
+  switch (keysym) {
+  case XKB_KEY_Escape:
+  case XKB_KEY_q:
+    g_c3_exit_code = 0;
+    return false;
+  case XKB_KEY_Left:
+    if (! window_set_sequence_pos((s_window *) window,
+                                  (window->sequence_pos +
+                                   window->sequence_count - 1) %
+                                  window->sequence_count))
+      return false;
+    break;
+  case XKB_KEY_Right:
+    if (! window_set_sequence_pos((s_window *) window,
+                                  (window->sequence_pos + 1) %
+                                  window->sequence_count))
+      return false;
+    break;
+  default:
+    xkb_keysym_get_name(keysym, keysym_name, sizeof(keysym_name));
+    printf("c3_window_cairo_demo_key: %lu %s\n", keysym, keysym_name);
+  }
+  return true;
+}
+
+bool window_cairo_demo_load (s_window_cairo *window)
+{
+  assert(window->sequence_count == C3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
+  window_cairo_sequence_init(window->sequence, 8.0,
+                             "01. Background rectangles",
+                             bg_rect_load, bg_rect_render);
+  window_cairo_sequence_init(window->sequence + 1, 30.0,
+                             "02. Lightspeed",
+                             lightspeed_load, lightspeed_render);
+  window_set_sequence_pos((s_window *) window, 0);
+  return true;
+}
+
+bool window_cairo_demo_render (s_window_cairo *window,
+                                  cairo_t *cr)
+{
+  s_sequence *seq;
+  cairo_text_extents_t te;
+  assert(window);
+  assert(cr);
+  if (! window_animate((s_window *) window))
+    return false;
+  seq = window->sequence + window->sequence_pos;
+  seq->render(window, cr, seq);
+  /* text */
+  cairo_set_font_size(cr, 20);
+  cairo_select_font_face(cr, "Courier New",
+                          CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
+  cairo_text_extents(cr, seq->title, &te);
+  /* text bg */
+  cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 21);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 20);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 19, window->h - te.height - te.y_bearing - 19);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 21);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 19);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 19);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 20);
+  cairo_show_text(cr, seq->title);
+  cairo_move_to(cr, 21, window->h - te.height - te.y_bearing - 21);
+  cairo_show_text(cr, seq->title);
+  /* text */
+  cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
+  cairo_move_to(cr, 20, window->h - te.height - te.y_bearing - 20);
+  cairo_show_text(cr, seq->title);
+  /* progress bar */
+  cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+  cairo_rectangle(cr, 19, window->h - 12,
+                  (window->w - 40.0) * seq->t / seq->duration + 2,
+                  4);
+  cairo_fill(cr);
+  cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
+  cairo_rectangle(cr, 20, window->h - 11,
+                  (window->w - 40.0) * seq->t / seq->duration,
+                  2);
+  cairo_fill(cr);
+  return true;
+}
+
+bool window_cairo_demo_resize (s_window_cairo *window,
+                                  uw w, uw h)
+{
+  assert(window);
+  (void) window;
+  (void) w;
+  (void) h;
+  return true;
+}
diff --git a/libc3/window/cairo/demo/window_cairo_demo.h b/libc3/window/cairo/demo/window_cairo_demo.h
new file mode 100644
index 0000000..3348ea7
--- /dev/null
+++ b/libc3/window/cairo/demo/window_cairo_demo.h
@@ -0,0 +1,27 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#ifndef LIBC3_WINDOW_CAIRO_DEMO_H
+#define LIBC3_WINDOW_CAIRO_DEMO_H
+
+#include "../types.h"
+
+#define WINDOW_CAIRO_DEMO_SEQUENCE_COUNT 2
+
+bool window_cairo_demo_button (s_window_cairo *window, u8 button,
+                                  sw x, sw y);
+bool window_cairo_demo_key (s_window_cairo *window, uw keysym);
+bool window_cairo_demo_load (s_window_cairo *window);
+bool window_cairo_demo_render (s_window_cairo *window, cairo_t *cr);
+bool window_cairo_demo_resize (s_window_cairo *window, uw w, uw h);
+
+#endif /* LIBC3_WINDOW_CAIRO_DEMO_H */
diff --git a/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.c b/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.c
deleted file mode 100644
index 26ee3ee..0000000
--- a/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <cairo/cairo.h>
-#include <libc3/c3.h>
-#include "../../../window.h"
-#include "../../c3_window_cairo_demo.h"
-#include "../window_cairo_quartz.h"
-
-int main (void)
-{
-  s_window_cairo window;
-  window_cairo_init(&window, 0, 0, 800, 600,
-                    "C3.Window.Cairo.Quartz demo",
-                    C3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
-  window.button = c3_window_cairo_demo_button;
-  window.key    = c3_window_cairo_demo_key;
-  window.load   = c3_window_cairo_demo_load;
-  window.render = c3_window_cairo_demo_render;
-  window.resize = c3_window_cairo_demo_resize;
-  if (! window_cairo_quartz_run(&window))
-    return g_c3_exit_code;
-  return 0;
-}
diff --git a/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_bridging_header.h b/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_bridging_header.h
deleted file mode 100644
index d268bbc..0000000
--- a/libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_bridging_header.h
+++ /dev/null
@@ -1,5 +0,0 @@
-//
-//  Use this file to import your target's public headers that you would like to expose to Swift.
-//
-
-#import "../custom_cairo_view.h"
diff --git a/libc3/window/cairo/quartz/demo/configure b/libc3/window/cairo/quartz/demo/configure
index d687539..c6dd7de 100755
--- a/libc3/window/cairo/quartz/demo/configure
+++ b/libc3/window/cairo/quartz/demo/configure
@@ -84,19 +84,19 @@ pkg_config xkbcommon
 # Asan config
 CFLAGS_ASAN="$CFLAGS -fsanitize=address -O1 -fno-omit-frame-pointer -g"
 LDFLAGS_ASAN="$LDFLAGS"
-LOCAL_LIBS_ASAN="../libc3_window_cairo_quartz_asan.la"
+LOCAL_LIBS_ASAN="../../demo/libc3_window_cairo_demo_asan.la ../libc3_window_cairo_quartz_asan.la"
 LIBS_ASAN="$LOCAL_LIBS_ASAN $LIBS"
 
 # Coverage config
 CFLAGS_COV="$CFLAGS -ftest-coverage -fprofile-arcs -fprofile-generate"
 LDFLAGS_COV="$LDFLAGS --coverage"
-LOCAL_LIBS_COV="../libc3_window_cairo_quartz_cov.la"
+LOCAL_LIBS_COV="../../demo/libc3_window_cairo_demo_cov.la ../libc3_window_cairo_quartz_cov.la"
 LIBS_COV="$LOCAL_LIBS_COV $LIBS"
 
 # Debug config
 CFLAGS_DEBUG="$CFLAGS -DDEBUG -O0 -g"
 LDFLAGS_DEBUG="$LDFLAGS"
-LOCAL_LIBS_DEBUG="../libc3_window_cairo_quartz_debug.la"
+LOCAL_LIBS_DEBUG="../../demo/libc3_window_cairo_demo_debug.la ../libc3_window_cairo_quartz_debug.la"
 LIBS_DEBUG="$LOCAL_LIBS_DEBUG $LIBS"
 
 # Main config
@@ -106,7 +106,7 @@ if [ "x$ENV_CFLAGS" = "x" ]; then
 fi
 CFLAGS="$CFLAGS -DNDEBUG"
 LIBC3=../libc3/libc3.la
-LOCAL_LIBS="../libc3_window_cairo_quartz.la"
+LOCAL_LIBS="../../demo/libc3_window_cairo_demo.la ../libc3_window_cairo_quartz.la"
 LIBS="$LOCAL_LIBS $LIBS"
 
 echo "HAVE_ASAN = $HAVE_ASAN" >> ${CONFIG_MK}
@@ -203,7 +203,7 @@ echo "${APP_PROG_DEBUG}: ${PROG_DEBUG}" >> ${CONFIG_MK}
 echo "	mkdir -p $(dirname $APP_PROG_DEBUG)" >> ${CONFIG_MK}
 echo "	cp .libs/${PROG_DEBUG} ${APP_PROG_DEBUG}" >> ${CONFIG_MK}
 
-BUNDLE_LIBS="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3.0.dylib ../../../.libs/libc3_window.0.dylib ../../.libs/libc3_window_cairo.0.dylib ../.libs/libc3_window_cairo_quartz.0.dylib"
+BUNDLE_LIBS="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3.0.dylib ../../../.libs/libc3_window.0.dylib ../../.libs/libc3_window_cairo.0.dylib ../../demo/.libs/libc3_window_cairo_demo.0.dylib ../.libs/libc3_window_cairo_quartz.0.dylib"
 echo >> ${CONFIG_MK}
 echo "${APP}/Contents/Frameworks: ${BUNDLE_LIBS}" >> ${CONFIG_MK}
 echo "	mkdir -p ${APP}/Contents/Frameworks" >> ${CONFIG_MK}
@@ -219,7 +219,7 @@ echo ".PHONY: \\" >> ${CONFIG_MK}
 echo "	${APP}/Contents/Frameworks \\" >> ${CONFIG_MK}
 echo "	${APP_PROG}" >> ${CONFIG_MK}
 
-BUNDLE_LIBS_ASAN="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_asan.0.dylib ../../../.libs/libc3_window_asan.0.dylib ../../.libs/libc3_window_cairo_asan.0.dylib ../.libs/libc3_window_cairo_quartz_asan.0.dylib"
+BUNDLE_LIBS_ASAN="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_asan.0.dylib ../../../.libs/libc3_window_asan.0.dylib ../../.libs/libc3_window_cairo_asan.0.dylib ../../demo/.libs/libc3_window_cairo_demo_asan.0.dylib ../.libs/libc3_window_cairo_quartz_asan.0.dylib"
 echo >> ${CONFIG_MK}
 echo "${APP_ASAN}/Contents/Frameworks: ${BUNDLE_LIBS_ASAN}" >> ${CONFIG_MK}
 echo "	mkdir -p ${APP_ASAN}/Contents/Frameworks" >> ${CONFIG_MK}
@@ -235,7 +235,7 @@ echo ".PHONY: \\" >> ${CONFIG_MK}
 echo "	${APP_ASAN}/Contents/Frameworks \\" >> ${CONFIG_MK}
 echo "	${APP_PROG_ASAN}" >> ${CONFIG_MK}
 
-BUNDLE_LIBS_COV="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_cov.0.dylib ../../../.libs/libc3_window_cov.0.dylib ../../.libs/libc3_window_cairo_cov.0.dylib ../.libs/libc3_window_cairo_quartz_cov.0.dylib"
+BUNDLE_LIBS_COV="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_cov.0.dylib ../../../.libs/libc3_window_cov.0.dylib ../../.libs/libc3_window_cairo_cov.0.dylib ../../demo/.libs/libc3_window_cairo_demo_cov.0.dylib ../.libs/libc3_window_cairo_quartz_cov.0.dylib"
 echo >> ${CONFIG_MK}
 echo "${APP_COV}/Contents/Frameworks: ${BUNDLE_LIBS_COV}" >> ${CONFIG_MK}
 echo "	mkdir -p ${APP_COV}/Contents/Frameworks" >> ${CONFIG_MK}
@@ -251,7 +251,7 @@ echo ".PHONY: \\" >> ${CONFIG_MK}
 echo "	${APP_COV}/Contents/Frameworks \\" >> ${CONFIG_MK}
 echo "	${APP_PROG}" >> ${CONFIG_MK}
 
-BUNDLE_LIBS_DEBUG="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_debug.0.dylib ../../../.libs/libc3_window_debug.0.dylib ../../.libs/libc3_window_cairo_debug.0.dylib ../.libs/libc3_window_cairo_quartz_debug.0.dylib"
+BUNDLE_LIBS_DEBUG="../../../../../libffi/.libs/libffi.8.dylib ../../../../.libs/libc3_debug.0.dylib ../../../.libs/libc3_window_debug.0.dylib ../../.libs/libc3_window_cairo_debug.0.dylib ../../demo/.libs/libc3_window_cairo_demo_debug.0.dylib ../.libs/libc3_window_cairo_quartz_debug.0.dylib"
 echo >> ${CONFIG_MK}
 echo "${APP_DEBUG}/Contents/Frameworks: ${BUNDLE_LIBS_DEBUG}" >> ${CONFIG_MK}
 echo "	mkdir -p ${APP_DEBUG}/Contents/Frameworks" >> ${CONFIG_MK}
diff --git a/libc3/window/cairo/quartz/demo/sources.mk b/libc3/window/cairo/quartz/demo/sources.mk
index 2bcd1c7..2b2c4c0 100644
--- a/libc3/window/cairo/quartz/demo/sources.mk
+++ b/libc3/window/cairo/quartz/demo/sources.mk
@@ -1,9 +1,9 @@
 # sources.mk generated by update_sources
 HEADERS = \
-	c3_window_cairo_quartz_demo_bridging_header.h \
+	 \
 
 SOURCES = \
-	c3_window_cairo_quartz_demo.c \
+	window_cairo_quartz_demo.c \
 
 OBJC_SOURCES = \
 	 \
diff --git a/libc3/window/cairo/quartz/demo/sources.sh b/libc3/window/cairo/quartz/demo/sources.sh
index fa67117..3e6ad82 100644
--- a/libc3/window/cairo/quartz/demo/sources.sh
+++ b/libc3/window/cairo/quartz/demo/sources.sh
@@ -1,4 +1,4 @@
 # sources.sh generated by update_sources
-HEADERS='c3_window_cairo_quartz_demo_bridging_header.h '
-SOURCES='c3_window_cairo_quartz_demo.c '
+HEADERS=' '
+SOURCES='window_cairo_quartz_demo.c '
 OBJC_SOURCES=' '
diff --git a/libc3/window/cairo/quartz/demo/window_cairo_quartz_demo.c b/libc3/window/cairo/quartz/demo/window_cairo_quartz_demo.c
new file mode 100644
index 0000000..5b2895f
--- /dev/null
+++ b/libc3/window/cairo/quartz/demo/window_cairo_quartz_demo.c
@@ -0,0 +1,35 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <cairo/cairo.h>
+#include <libc3/c3.h>
+#include "../../../window.h"
+#include "../../demo/window_cairo_demo.h"
+#include "../window_cairo_quartz.h"
+
+int main (void)
+{
+  s_window_cairo window;
+  window_cairo_init(&window, 0, 0, 800, 600,
+                    "C3.Window.Cairo.Quartz demo",
+                    WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
+  window.button = window_cairo_demo_button;
+  window.key    = window_cairo_demo_key;
+  window.load   = window_cairo_demo_load;
+  window.render = window_cairo_demo_render;
+  window.resize = window_cairo_demo_resize;
+  if (! window_cairo_quartz_run(&window))
+    return g_c3_exit_code;
+  return 0;
+}
diff --git a/libc3/window/cairo/sources.mk b/libc3/window/cairo/sources.mk
index de2d094..c3c9eb1 100644
--- a/libc3/window/cairo/sources.mk
+++ b/libc3/window/cairo/sources.mk
@@ -1,10 +1,8 @@
 # sources.mk generated by update_sources
 HEADERS = \
-	c3_window_cairo_demo.h \
 	types.h \
 	window_cairo.h \
 
 SOURCES = \
-	c3_window_cairo_demo.c \
 	window_cairo.c \
 
diff --git a/libc3/window/cairo/sources.sh b/libc3/window/cairo/sources.sh
index 1f2c35a..3bb9595 100644
--- a/libc3/window/cairo/sources.sh
+++ b/libc3/window/cairo/sources.sh
@@ -1,3 +1,3 @@
 # sources.sh generated by update_sources
-HEADERS='c3_window_cairo_demo.h types.h window_cairo.h '
-SOURCES='c3_window_cairo_demo.c window_cairo.c '
+HEADERS='types.h window_cairo.h '
+SOURCES='window_cairo.c '
diff --git a/libc3/window/cairo/types.h b/libc3/window/cairo/types.h
index 4fbd360..9d35c68 100644
--- a/libc3/window/cairo/types.h
+++ b/libc3/window/cairo/types.h
@@ -44,14 +44,14 @@ typedef bool (*f_window_cairo_motion) (s_window_cairo *window, sw x,
 typedef bool (*f_window_cairo_render) (s_window_cairo *window,
                                        cairo_t *cr);
 
-typedef void (*f_window_cairo_render_sequence) (s_window_cairo *window,
-                                                cairo_t *cr,
-                                                s_sequence *seq);
-
 /* return false to break event loop */
 typedef bool (*f_window_cairo_resize) (s_window_cairo *window,
                                        uw w, uw h);
 
+typedef void (*f_window_cairo_sequence_render) (s_window_cairo *window,
+                                                cairo_t *cr,
+                                                s_sequence *seq);
+
 struct rgb {
   double r;
   double g;
diff --git a/libc3/window/cairo/update_sources b/libc3/window/cairo/update_sources
index ddcbb2f..76260cb 100755
--- a/libc3/window/cairo/update_sources
+++ b/libc3/window/cairo/update_sources
@@ -25,6 +25,7 @@ sources SOURCES "$SOURCES"
 update_sources_mk
 update_sources_sh
 
+( cd demo && ./update_sources; )
 ( cd quartz && ./update_sources; )
 ( cd win32 && ./update_sources; )
 ( cd xcb && ./update_sources; )
diff --git a/libc3/window/cairo/win32/demo/c3_window_cairo_win32_demo.c b/libc3/window/cairo/win32/demo/c3_window_cairo_win32_demo.c
deleted file mode 100644
index 192a49e..0000000
--- a/libc3/window/cairo/win32/demo/c3_window_cairo_win32_demo.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <cairo/cairo.h>
-#include <libc3/c3.h>
-#include "../../../window.h"
-#include "../../c3_window_cairo_demo.h"
-#include "../window_cairo_win32.h"
-
-int main (void)
-{
-  s_window_cairo window;
-  window_cairo_init(&window, 0, 0, 800, 600,
-                    "C3.Window.Cairo.Win32 demo",
-                    LIBC3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
-  window.button = c3_window_cairo_demo_button;
-  window.key    = c3_window_cairo_demo_key;
-  window.load   = c3_window_cairo_demo_load;
-  window.render = c3_window_cairo_demo_render;
-  window.resize = c3_window_cairo_demo_resize;
-  if (! window_cairo_win32_run(&window))
-    return g_c3_exit_code;
-  return 0;
-}
diff --git a/libc3/window/cairo/win32/demo/sources.mk b/libc3/window/cairo/win32/demo/sources.mk
index caf267e..89e999e 100644
--- a/libc3/window/cairo/win32/demo/sources.mk
+++ b/libc3/window/cairo/win32/demo/sources.mk
@@ -3,6 +3,5 @@ HEADERS = \
 	 \
 
 SOURCES = \
-	c3_window_cairo_win32_demo.c \
-	window.c \
+	window_cairo_win32_demo.c \
 
diff --git a/libc3/window/cairo/win32/demo/sources.sh b/libc3/window/cairo/win32/demo/sources.sh
index 8543912..9df3998 100644
--- a/libc3/window/cairo/win32/demo/sources.sh
+++ b/libc3/window/cairo/win32/demo/sources.sh
@@ -1,3 +1,3 @@
 # sources.sh generated by update_sources
 HEADERS=' '
-SOURCES='c3_window_cairo_win32_demo.c window.c '
+SOURCES='window_cairo_win32_demo.c '
diff --git a/libc3/window/cairo/win32/demo/update_sources b/libc3/window/cairo/win32/demo/update_sources
old mode 100644
new mode 100755
diff --git a/libc3/window/cairo/win32/demo/window.c b/libc3/window/cairo/win32/demo/window.c
deleted file mode 100644
index 2a00f81..0000000
--- a/libc3/window/cairo/win32/demo/window.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#include "../../../window.c"
diff --git a/libc3/window/cairo/win32/demo/window_cairo_win32_demo.c b/libc3/window/cairo/win32/demo/window_cairo_win32_demo.c
new file mode 100644
index 0000000..192a49e
--- /dev/null
+++ b/libc3/window/cairo/win32/demo/window_cairo_win32_demo.c
@@ -0,0 +1,35 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <cairo/cairo.h>
+#include <libc3/c3.h>
+#include "../../../window.h"
+#include "../../c3_window_cairo_demo.h"
+#include "../window_cairo_win32.h"
+
+int main (void)
+{
+  s_window_cairo window;
+  window_cairo_init(&window, 0, 0, 800, 600,
+                    "C3.Window.Cairo.Win32 demo",
+                    LIBC3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
+  window.button = c3_window_cairo_demo_button;
+  window.key    = c3_window_cairo_demo_key;
+  window.load   = c3_window_cairo_demo_load;
+  window.render = c3_window_cairo_demo_render;
+  window.resize = c3_window_cairo_demo_resize;
+  if (! window_cairo_win32_run(&window))
+    return g_c3_exit_code;
+  return 0;
+}
diff --git a/libc3/window/cairo/win32/sources.mk b/libc3/window/cairo/win32/sources.mk
index 7f53a9f..02fb680 100644
--- a/libc3/window/cairo/win32/sources.mk
+++ b/libc3/window/cairo/win32/sources.mk
@@ -1,6 +1,5 @@
 # sources.mk generated by update_sources
 HEADERS = \
-	config.h \
 	vk_to_xkbcommon.h \
 	window_cairo_win32.h \
 
diff --git a/libc3/window/cairo/win32/sources.sh b/libc3/window/cairo/win32/sources.sh
index 59ef06c..7492652 100644
--- a/libc3/window/cairo/win32/sources.sh
+++ b/libc3/window/cairo/win32/sources.sh
@@ -1,3 +1,3 @@
 # sources.sh generated by update_sources
-HEADERS='config.h vk_to_xkbcommon.h window_cairo_win32.h '
+HEADERS='vk_to_xkbcommon.h window_cairo_win32.h '
 SOURCES='vk_to_xkbcommon.c window_cairo_win32.c '
diff --git a/libc3/window/cairo/win32/update_sources b/libc3/window/cairo/win32/update_sources
old mode 100644
new mode 100755
diff --git a/libc3/window/cairo/window_cairo.c b/libc3/window/cairo/window_cairo.c
index 4e7a3a0..31da8d3 100644
--- a/libc3/window/cairo/window_cairo.c
+++ b/libc3/window/cairo/window_cairo.c
@@ -105,12 +105,13 @@ bool window_cairo_resize_default (s_window_cairo *window, uw w, uw h)
 
 s_sequence * window_cairo_sequence_init
 (s_sequence *sequence, f64 duration, const s8 *title,
- f_window_cairo_render_sequence render)
+ f_sequence_load load, f_window_cairo_sequence_render render)
 {
   assert(sequence);
   sequence->t = 0.0;
   sequence->duration = duration;
   sequence->title = title;
+  sequence->load = load;
   sequence->render = (f_sequence_render) render;
   return sequence;
 }
diff --git a/libc3/window/cairo/window_cairo.h b/libc3/window/cairo/window_cairo.h
index 70b0b34..ebf65e8 100644
--- a/libc3/window/cairo/window_cairo.h
+++ b/libc3/window/cairo/window_cairo.h
@@ -23,7 +23,7 @@ bool             window_cairo_run (s_window_cairo *window);
 
 s_sequence *     window_cairo_sequence_init
 (s_sequence *sequence, f64 duration, const s8 *title,
- f_window_cairo_render_sequence render);
+ f_sequence_load load, f_window_cairo_sequence_render render);
 
 /* callbacks */
 bool window_cairo_button_default (s_window_cairo *window, u8 button,
diff --git a/libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo.c b/libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo.c
deleted file mode 100644
index ec4e6db..0000000
--- a/libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* c3
- * Copyright 2022,2023 kmx.io <contact@kmx.io>
- *
- * Permission is hereby granted to use this software granted the above
- * copyright notice and this permission paragraph are included in all
- * copies and substantial portions of this software.
- *
- * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
- * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
- * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
- * THIS SOFTWARE.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <libc3/c3.h>
-#include "../../../window.h"
-#include "../../c3_window_cairo_demo.h"
-#include "../window_cairo_xcb.h"
-
-int main (void)
-{
-  s_window_cairo window;
-  window_cairo_init(&window, 0, 0, 800, 600,
-                    "C3.Window.Cairo.XCB demo",
-                    C3_WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
-  window.button = c3_window_cairo_demo_button;
-  window.key    = c3_window_cairo_demo_key;
-  window.load   = c3_window_cairo_demo_load;
-  window.render = c3_window_cairo_demo_render;
-  window.resize = c3_window_cairo_demo_resize;
-  if (! window_cairo_xcb_run(&window))
-    return g_c3_exit_code;
-  return 0;
-}
diff --git a/libc3/window/cairo/xcb/demo/configure b/libc3/window/cairo/xcb/demo/configure
index 3fd8000..27003bf 100755
--- a/libc3/window/cairo/xcb/demo/configure
+++ b/libc3/window/cairo/xcb/demo/configure
@@ -55,19 +55,19 @@ LIBS="$LIBS"
 # Asan config
 CFLAGS_ASAN="$CFLAGS -fsanitize=address -O1 -fno-omit-frame-pointer -g"
 LDFLAGS_ASAN="$LDFLAGS"
-LOCAL_LIBS_ASAN="../libc3_window_cairo_xcb_asan.la ../../libc3_window_cairo_asan.la ../../../libc3_window_asan.la ../../../../libc3_asan.la"
+LOCAL_LIBS_ASAN="../../demo/libc3_window_cairo_demo_asan.la ../libc3_window_cairo_xcb_asan.la"
 LIBS_ASAN="$LOCAL_LIBS_ASAN $LIBS"
 
 # Coverage config
 CFLAGS_COV="$CFLAGS -ftest-coverage -fprofile-arcs -fprofile-generate"
 LDFLAGS_COV="$LDFLAGS --coverage"
-LOCAL_LIBS_COV="../libc3_window_cairo_xcb_cov.la ../../libc3_window_cairo_cov.la ../../../libc3_window_cov.la ../../../../libc3_cov.la"
+LOCAL_LIBS_COV="../../demo/libc3_window_cairo_demo_cov.la ../libc3_window_cairo_xcb_cov.la"
 LIBS_COV="$LOCAL_LIBS_COV $LIBS"
 
 # Debug config
 CFLAGS_DEBUG="$CFLAGS -DDEBUG -O0 -g"
 LDFLAGS_DEBUG="$LDFLAGS"
-LOCAL_LIBS_DEBUG="../libc3_window_cairo_xcb_debug.la ../../libc3_window_cairo_debug.la ../../../libc3_window_debug.la ../../../../libc3_debug.la"
+LOCAL_LIBS_DEBUG="../../demo/libc3_window_cairo_demo_debug.la ../libc3_window_cairo_xcb_debug.la"
 LIBS_DEBUG="$LOCAL_LIBS_DEBUG $LIBS"
 
 # Main config
@@ -76,7 +76,7 @@ if [ "x$ENV_CFLAGS" = "x" ]; then
     CFLAGS="$CFLAGS $DEFAULT_CFLAGS"
 fi
 CFLAGS="$CFLAGS -DNDEBUG"
-LOCAL_LIBS="../libc3_window_cairo_xcb.la ../../libc3_window_cairo.la ../../../libc3_window.la ../../../../libc3.la"
+LOCAL_LIBS="../../demo/libc3_window_cairo_demo.la ../libc3_window_cairo_xcb.la"
 LIBS="$LOCAL_LIBS $LIBS"
 
 echo "HAVE_ASAN = $HAVE_ASAN" >> ${CONFIG_MK}
diff --git a/libc3/window/cairo/xcb/demo/sources.mk b/libc3/window/cairo/xcb/demo/sources.mk
index e6bb6b2..7b3cf49 100644
--- a/libc3/window/cairo/xcb/demo/sources.mk
+++ b/libc3/window/cairo/xcb/demo/sources.mk
@@ -3,6 +3,6 @@ HEADERS = \
 	 \
 
 SOURCES = \
-	c3_window_cairo_xcb_demo.c \
 	window.c \
+	window_cairo_xcb_demo.c \
 
diff --git a/libc3/window/cairo/xcb/demo/sources.sh b/libc3/window/cairo/xcb/demo/sources.sh
index f734d9a..2a5d8d4 100644
--- a/libc3/window/cairo/xcb/demo/sources.sh
+++ b/libc3/window/cairo/xcb/demo/sources.sh
@@ -1,3 +1,3 @@
 # sources.sh generated by update_sources
 HEADERS=' '
-SOURCES='c3_window_cairo_xcb_demo.c window.c '
+SOURCES='window.c window_cairo_xcb_demo.c '
diff --git a/libc3/window/cairo/xcb/demo/window_cairo_xcb_demo.c b/libc3/window/cairo/xcb/demo/window_cairo_xcb_demo.c
new file mode 100644
index 0000000..90d1a10
--- /dev/null
+++ b/libc3/window/cairo/xcb/demo/window_cairo_xcb_demo.c
@@ -0,0 +1,34 @@
+/* c3
+ * Copyright 2022,2023 kmx.io <contact@kmx.io>
+ *
+ * Permission is hereby granted to use this software granted the above
+ * copyright notice and this permission paragraph are included in all
+ * copies and substantial portions of this software.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+ * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+ * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+ * THIS SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <libc3/c3.h>
+#include "../../../window.h"
+#include "../../demo/window_cairo_demo.h"
+#include "../window_cairo_xcb.h"
+
+int main (void)
+{
+  s_window_cairo window;
+  window_cairo_init(&window, 0, 0, 800, 600,
+                    "C3.Window.Cairo.XCB demo",
+                    WINDOW_CAIRO_DEMO_SEQUENCE_COUNT);
+  window.button = window_cairo_demo_button;
+  window.key    = window_cairo_demo_key;
+  window.load   = window_cairo_demo_load;
+  window.render = window_cairo_demo_render;
+  window.resize = window_cairo_demo_resize;
+  if (! window_cairo_xcb_run(&window))
+    return g_c3_exit_code;
+  return 0;
+}
diff --git a/libc3/window/window.c b/libc3/window/window.c
index 10102c1..c2805d1 100644
--- a/libc3/window/window.c
+++ b/libc3/window/window.c
@@ -58,5 +58,7 @@ bool window_set_sequence_pos (s_window *window, uw sequence_pos)
   }
   window->sequence_pos = sequence_pos;
   printf("%s\n", seq->title);
+  if (! seq->load(seq))
+    return false;
   return true;
 }
diff --git a/osx/Makefile b/osx/Makefile
new file mode 100644
index 0000000..1e854a6
--- /dev/null
+++ b/osx/Makefile
@@ -0,0 +1,36 @@
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+all: dmg
+
+DMG_FILES = \
+	../libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.app \
+	../libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_debug.app
+
+DESTDIR = c3-v${C3_VERSION}
+DMG = ${DESTDIR}.dmg
+
+CLEANFILES = ${DMG} ${DESTDIR} ${DESTDIR}.old
+
+clean:
+	rm -rf ${CLEANFILES}
+
+dmg:
+	rm -rf ${DESTDIR}.old
+	if [ -d ${DESTDIR} ]; then mv ${DESTDIR} ${DESTDIR}.old; fi
+	mkdir ${DESTDIR}
+	cp -r ${DMG_FILES} ${DESTDIR}
+	hdiutil create -volname "C3 v${C3_VERSION}" -srcfolder ${DESTDIR} -ov -format UDZO ${DESTDIR}.dmg
+
+.PHONY: all clean dmg
+
+include ../config.mk
diff --git a/sources.mk b/sources.mk
index df2c3ab..fb94167 100644
--- a/sources.mk
+++ b/sources.mk
@@ -9,6 +9,8 @@ C3_CONFIGURES = \
 	libc3/update_sources \
 	libc3/window/configure \
 	libc3/window/update_sources \
+	libc3/window/cairo/demo/configure \
+	libc3/window/cairo/demo/update_sources \
 	libc3/window/cairo/xcb/demo/configure \
 	libc3/window/cairo/xcb/demo/update_sources \
 	libc3/window/cairo/xcb/configure \
@@ -19,6 +21,10 @@ C3_CONFIGURES = \
 	libc3/window/cairo/quartz/demo/update_sources \
 	libc3/window/cairo/quartz/configure \
 	libc3/window/cairo/quartz/update_sources \
+	libc3/window/cairo/win32/demo/configure \
+	libc3/window/cairo/win32/demo/update_sources \
+	libc3/window/cairo/win32/configure \
+	libc3/window/cairo/win32/update_sources \
 	libtommath/configure \
 	libtommath/update_sources \
 	test/configure \
@@ -32,11 +38,14 @@ C3_MAKEFILES = \
 	libc3/Makefile \
 	libc3/gen.mk \
 	libc3/window/Makefile \
+	libc3/window/cairo/demo/Makefile \
 	libc3/window/cairo/xcb/demo/Makefile \
 	libc3/window/cairo/xcb/Makefile \
 	libc3/window/cairo/Makefile \
 	libc3/window/cairo/quartz/demo/Makefile \
 	libc3/window/cairo/quartz/Makefile \
+	libc3/window/cairo/win32/demo/Makefile \
+	libc3/window/cairo/win32/Makefile \
 	libtommath/Makefile \
 	test/Makefile \
 	ucd2c/Makefile \
@@ -248,16 +257,20 @@ C3_C_SOURCES = \
 	libc3/buf_inspect_s64_hexadecimal.h \
 	libc3/window/types.h \
 	libc3/window/window.h \
-	libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo.c \
+	libc3/window/cairo/demo/window_cairo_demo.c \
+	libc3/window/cairo/demo/lightspeed.h \
+	libc3/window/cairo/demo/bg_rect.h \
+	libc3/window/cairo/demo/window_cairo_demo.h \
+	libc3/window/cairo/demo/lightspeed.c \
+	libc3/window/cairo/demo/bg_rect.c \
+	libc3/window/cairo/xcb/demo/window_cairo_xcb_demo.c \
 	libc3/window/cairo/xcb/demo/window.c \
 	libc3/window/cairo/xcb/window_cairo_xcb.h \
 	libc3/window/cairo/xcb/config.h \
 	libc3/window/cairo/xcb/window_cairo_xcb.c \
 	libc3/window/cairo/types.h \
 	libc3/window/cairo/window_cairo.c \
-	libc3/window/cairo/c3_window_cairo_demo.h \
-	libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_bridging_header.h \
-	libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.c \
+	libc3/window/cairo/quartz/demo/window_cairo_quartz_demo.c \
 	libc3/window/cairo/quartz/window_cairo_quartz_view_controller.h \
 	libc3/window/cairo/quartz/quartz_to_xkbcommon.c \
 	libc3/window/cairo/quartz/window_cairo_quartz.h \
@@ -266,7 +279,11 @@ C3_C_SOURCES = \
 	libc3/window/cairo/quartz/xkbquartz.h \
 	libc3/window/cairo/quartz/window_cairo_quartz_view.h \
 	libc3/window/cairo/window_cairo.h \
-	libc3/window/cairo/c3_window_cairo_demo.c \
+	libc3/window/cairo/win32/demo/window_cairo_win32_demo.c \
+	libc3/window/cairo/win32/vk_to_xkbcommon.c \
+	libc3/window/cairo/win32/window_cairo_win32.h \
+	libc3/window/cairo/win32/vk_to_xkbcommon.h \
+	libc3/window/cairo/win32/window_cairo_win32.c \
 	libc3/window/window.c \
 	libc3/ident.h \
 	libc3/buf_inspect_s64_decimal.c \
diff --git a/sources.sh b/sources.sh
index a40af98..5e44f2c 100644
--- a/sources.sh
+++ b/sources.sh
@@ -1,4 +1,4 @@
 # sources.sh generated by update_sources
-C3_CONFIGURES='c3c/configure c3s/configure c3s/update_sources ic3/configure ic3/update_sources libc3/configure libc3/update_sources libc3/window/configure libc3/window/update_sources libc3/window/cairo/xcb/demo/configure libc3/window/cairo/xcb/demo/update_sources libc3/window/cairo/xcb/configure libc3/window/cairo/xcb/update_sources libc3/window/cairo/configure libc3/window/cairo/update_sources libc3/window/cairo/quartz/demo/configure libc3/window/cairo/quartz/demo/update_sources libc3/window/cairo/quartz/configure libc3/window/cairo/quartz/update_sources libtommath/configure libtommath/update_sources test/configure test/update_sources ucd2c/configure '
-C3_MAKEFILES='c3c/Makefile c3s/Makefile ic3/Makefile libc3/Makefile libc3/gen.mk libc3/window/Makefile libc3/window/cairo/xcb/demo/Makefile libc3/window/cairo/xcb/Makefile libc3/window/cairo/Makefile libc3/window/cairo/quartz/demo/Makefile libc3/window/cairo/quartz/Makefile libtommath/Makefile test/Makefile ucd2c/Makefile '
-C3_C_SOURCES='c3c/c3c.c c3s/buf_readline.c c3s/c3s.c c3s/buf_readline.h ic3/buf_linenoise.h ic3/ic3.c ic3/linenoise.c ic3/buf_linenoise.c libc3/buf_inspect_s_base.c.in libc3/type.h libc3/fact.c libc3/time.h libc3/fn.h libc3/s16.h libc3/buf_inspect_s8_octal.h libc3/log.c libc3/error.h libc3/buf_inspect_u64_octal.h libc3/set_item.h.in libc3/compare.c libc3/buf_inspect_s8_binary.h libc3/buf_inspect_uw_hexadecimal.h libc3/uw.c libc3/eval.c libc3/set__fact.c libc3/sym.h libc3/env.h libc3/cfn.c libc3/buf_inspect_u16_octal.h libc3/u.h.in libc3/buf_parse_s16.c libc3/s8.h libc3/quote.h libc3/buf_inspect_s32.h libc3/buf_inspect.c libc3/buf_parse_u.h.in libc3/skiplist_node__fact.h libc3/skiplist__fact.c libc3/buf_inspect_s32_hexadecimal.h libc3/ceiling.h libc3/list.c libc3/buf_inspect_u64.c libc3/facts.h libc3/buf_inspect_u16_decimal.c libc3/facts_with_cursor.c libc3/buf_inspect_sw_decimal.c libc3/facts_cursor.c libc3/buf_inspect_u64_binary.h libc3/buf_inspect_sw_hexadecimal.h libc3/buf_inspect_s32_decimal.h libc3/u16.h libc3/buf_inspect_s64_octal.h libc3/buf_inspect_u8_binary.h libc3/buf_inspect_s8.h libc3/buf_inspect_s16_octal.h libc3/ucd.c libc3/buf_inspect_s16_binary.h libc3/tuple.c libc3/buf_inspect_uw_octal.h libc3/buf_parse_u8.c libc3/tag.h libc3/float.h libc3/buf_inspect_u_base.c.in libc3/buf_parse_u16.c libc3/buf_inspect_u16_hexadecimal.h libc3/buf_inspect_s8_decimal.c libc3/buf_inspect_u32.h libc3/array.c libc3/buf_parse_sw.h libc3/set.h.in libc3/s.c.in libc3/buf_parse_s.c.in libc3/map.h libc3/skiplist.h.in libc3/set__tag.h libc3/buf_inspect_s64.c libc3/io.c libc3/set_item__tag.c libc3/sequence.c libc3/types.h libc3/buf_inspect_uw.c libc3/buf_inspect_u32_binary.c libc3/buf_inspect_s64_decimal.h libc3/set_cursor.c.in libc3/ident.c libc3/buf_inspect_s64_hexadecimal.c libc3/bool.h libc3/s.h.in libc3/set.c.in libc3/skiplist.c.in libc3/operator.h libc3/fn_clause.h libc3/buf_parse_s.h.in libc3/buf_inspect_s16.c libc3/binding.c libc3/ptag.h libc3/buf_parse_s32.h libc3/var.h libc3/set_item__fact.h libc3/u8.c libc3/set_cursor.h.in libc3/f32.c libc3/buf_inspect_sw_octal.h libc3/c3.h libc3/arg.h libc3/buf_inspect_u8_hexadecimal.c libc3/buf_inspect_u32_hexadecimal.h libc3/buf_parse_u64.c libc3/module.c libc3/frame.h libc3/buf_inspect_s16_decimal.c libc3/file.h libc3/sw.h libc3/s32.c libc3/error_handler.c libc3/str.c libc3/buf_parse.h libc3/buf_inspect_uw_binary.c libc3/buf_inspect_uw_decimal.h libc3/facts_spec_cursor.c libc3/u64.h libc3/buf_inspect_u_base.h.in libc3/buf_inspect_s32_octal.h libc3/f64.h libc3/buf_inspect_u8_octal.h libc3/buf_inspect_s64_binary.c libc3/buf_inspect_u64_hexadecimal.c libc3/buf_inspect_u16_binary.c libc3/buf_save.h libc3/buf_inspect_u16.c libc3/buf_inspect_s8_hexadecimal.c libc3/u.c.in libc3/buf_inspect_sw.h libc3/facts_with.c libc3/buf_parse_u.c.in libc3/buf_parse_u32.h libc3/set_cursor__fact.c libc3/buf.h libc3/set_cursor__tag.h libc3/buf_inspect_s16_hexadecimal.h libc3/buf_inspect_u32_decimal.h libc3/buf_parse_uw.c libc3/buf_parse_s64.c libc3/abs.h libc3/buf_inspect_sw_binary.c libc3/buf_parse_s8.h libc3/call.h libc3/sign.c libc3/buf_inspect_u8_decimal.h libc3/character.h libc3/buf_inspect_u64_decimal.h libc3/buf_inspect_s_base.h.in libc3/buf_inspect_u32_octal.h libc3/u32.c libc3/hash.c libc3/buf_file.h libc3/integer.c libc3/buf_inspect_u8.c libc3/facts_spec.c libc3/buf_inspect_s32_binary.h libc3/set_item.c.in libc3/s64.h libc3/buf_inspect_u16_decimal.h libc3/facts.c libc3/buf_inspect_u64.h libc3/buf_inspect_sw_decimal.h libc3/facts_with_cursor.h libc3/skiplist_node__fact.c libc3/buf_inspect.h libc3/quote.c libc3/buf_inspect_s32.c libc3/skiplist_node.h.in libc3/s8.c libc3/buf_parse_s16.h libc3/list.h libc3/ceiling.c libc3/buf_inspect_s.h.in libc3/buf_inspect_s32_hexadecimal.c libc3/skiplist__fact.h libc3/uw.h libc3/buf_inspect_uw_hexadecimal.c libc3/buf_inspect_s8_binary.c libc3/compare.h libc3/buf_inspect_u64_octal.c libc3/buf_inspect_u16_octal.c libc3/cfn.h libc3/env.c libc3/set__fact.h libc3/sym.c libc3/eval.h libc3/c3_main.h libc3/buf_inspect_s8_octal.c libc3/s16.c libc3/fn.c libc3/time.c libc3/fact.h libc3/type.c libc3/error.c libc3/log.h libc3/sequence.h libc3/set_item__tag.h libc3/io.h libc3/buf_inspect_s64.h libc3/buf_inspect_s64_hexadecimal.h libc3/window/types.h libc3/window/window.h libc3/window/cairo/xcb/demo/c3_window_cairo_xcb_demo.c libc3/window/cairo/xcb/demo/window.c libc3/window/cairo/xcb/window_cairo_xcb.h libc3/window/cairo/xcb/config.h libc3/window/cairo/xcb/window_cairo_xcb.c libc3/window/cairo/types.h libc3/window/cairo/window_cairo.c libc3/window/cairo/c3_window_cairo_demo.h libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo_bridging_header.h libc3/window/cairo/quartz/demo/c3_window_cairo_quartz_demo.c libc3/window/cairo/quartz/window_cairo_quartz_view_controller.h libc3/window/cairo/quartz/quartz_to_xkbcommon.c libc3/window/cairo/quartz/window_cairo_quartz.h libc3/window/cairo/quartz/window_cairo_quartz_app_delegate.h libc3/window/cairo/quartz/quartz_to_xkbcommon.h libc3/window/cairo/quartz/xkbquartz.h libc3/window/cairo/quartz/window_cairo_quartz_view.h libc3/window/cairo/window_cairo.h libc3/window/cairo/c3_window_cairo_demo.c libc3/window/window.c libc3/ident.h libc3/buf_inspect_s64_decimal.c libc3/buf_inspect_u32_binary.h libc3/buf_inspect_uw.h libc3/buf_inspect_u.c.in libc3/buf_parse_sw.c libc3/array.h libc3/buf_inspect_u32.c libc3/buf_inspect_s8_decimal.h libc3/buf_inspect_u16_hexadecimal.c libc3/buf_parse_u16.h libc3/set__tag.c libc3/map.c libc3/tag.c libc3/buf_parse_u8.h libc3/buf_inspect_uw_octal.c libc3/buf_inspect_u8_binary.c libc3/buf_inspect_s64_octal.c libc3/u16.c libc3/buf_inspect_sw_hexadecimal.c libc3/buf_inspect_s32_decimal.c libc3/buf_inspect_u64_binary.c libc3/facts_cursor.h libc3/tuple.h libc3/buf_inspect_s16_binary.c libc3/ucd.h libc3/buf_inspect_s16_octal.c libc3/buf_inspect_s8.c libc3/sha1.h libc3/buf_inspect_uw_binary.h libc3/buf_parse.c libc3/str.h libc3/error_handler.h libc3/u64.c libc3/buf_inspect_s32_octal.c libc3/facts_spec_cursor.h libc3/buf_inspect_uw_decimal.c libc3/sw.c libc3/file.c libc3/buf_inspect_s16_decimal.h libc3/frame.c libc3/s32.h libc3/c3.c libc3/f32.h libc3/buf_inspect_sw_octal.c libc3/u8.h libc3/set_item__fact.c libc3/var.c libc3/module.h libc3/license.c libc3/buf_inspect_u32_hexadecimal.c libc3/buf_parse_u64.h libc3/buf_inspect_u8_hexadecimal.h libc3/arg.c libc3/fn_clause.c libc3/operator.c libc3/bool.c libc3/buf_parse_s32.c libc3/ptag.c libc3/binding.h libc3/buf_inspect_u.h.in libc3/buf_inspect_s16.h libc3/integer.h libc3/buf_file.c libc3/s64.c libc3/buf_inspect_s32_binary.c libc3/buf_inspect_u8.h libc3/facts_spec.h libc3/buf_inspect_u8_decimal.c libc3/sign.h libc3/call.c libc3/buf_parse_s8.c libc3/buf_inspect_sw_binary.h libc3/hash.h libc3/u32.h libc3/buf_inspect_u32_octal.c libc3/character.c libc3/buf_inspect_u64_decimal.c libc3/buf_parse_uw.h libc3/buf_inspect_u32_decimal.c libc3/buf_inspect_s16_hexadecimal.c libc3/set_cursor__tag.c libc3/set_cursor__fact.h libc3/buf.c libc3/abs.c libc3/buf_parse_s64.h libc3/buf_inspect_s.c.in libc3/buf_inspect_s64_binary.h libc3/buf_inspect_u8_octal.c libc3/f64.c libc3/skiplist_node.c.in libc3/buf_parse_u32.c libc3/facts_with.h libc3/buf_inspect_sw.c libc3/buf_inspect_u16.h libc3/buf_inspect_s8_hexadecimal.h libc3/buf_inspect_u16_binary.h libc3/buf_inspect_u64_hexadecimal.h libc3/buf_save.c test/ident_test.c test/buf_parse_test_s16.c test/buf_inspect_test.c test/libc3_test.c test/fn_test.c test/buf_parse_test_u16.c test/str_test.c test/cfn_test.c test/character_test.c test/buf_parse_test_s8.c test/skiplist__fact_test.c test/sym_test.c test/tag_test.h test/buf_file_test.c test/bool_test.c test/fact_test.h test/buf_parse_test_u64.c test/compare_test.c test/facts_with_test.c test/array_test.c test/buf_parse_test.h test/test.h test/buf_parse_test_su.h test/env_test.c test/buf_parse_test_s64.c test/types_test.c test/hash_test.c test/call_test.c test/set__tag_test.c test/facts_test.c test/facts_cursor_test.c test/compare_test.h test/buf_parse_test_s32.c test/test.c test/buf_parse_test.c test/fact_test.c test/tag_test.c test/set__fact_test.c test/buf_parse_test_u32.c test/buf_test.c test/list_test.c test/buf_parse_test_u8.c test/tuple_test.c ucd2c/ucd.h ucd2c/ucd2c.c '
+C3_CONFIGURES='c3c/configure c3s/configure c3s/update_sources ic3/configure ic3/update_sources libc3/configure libc3/update_sources libc3/window/configure libc3/window/update_sources libc3/window/cairo/demo/configure libc3/window/cairo/demo/update_sources libc3/window/cairo/xcb/demo/configure libc3/window/cairo/xcb/demo/update_sources libc3/window/cairo/xcb/configure libc3/window/cairo/xcb/update_sources libc3/window/cairo/configure libc3/window/cairo/update_sources libc3/window/cairo/quartz/demo/configure libc3/window/cairo/quartz/demo/update_sources libc3/window/cairo/quartz/configure libc3/window/cairo/quartz/update_sources libc3/window/cairo/win32/demo/configure libc3/window/cairo/win32/demo/update_sources libc3/window/cairo/win32/configure libc3/window/cairo/win32/update_sources libtommath/configure libtommath/update_sources test/configure test/update_sources ucd2c/configure '
+C3_MAKEFILES='c3c/Makefile c3s/Makefile ic3/Makefile libc3/Makefile libc3/gen.mk libc3/window/Makefile libc3/window/cairo/demo/Makefile libc3/window/cairo/xcb/demo/Makefile libc3/window/cairo/xcb/Makefile libc3/window/cairo/Makefile libc3/window/cairo/quartz/demo/Makefile libc3/window/cairo/quartz/Makefile libc3/window/cairo/win32/demo/Makefile libc3/window/cairo/win32/Makefile libtommath/Makefile test/Makefile ucd2c/Makefile '
+C3_C_SOURCES='c3c/c3c.c c3s/buf_readline.c c3s/c3s.c c3s/buf_readline.h ic3/buf_linenoise.h ic3/ic3.c ic3/linenoise.c ic3/buf_linenoise.c libc3/buf_inspect_s_base.c.in libc3/type.h libc3/fact.c libc3/time.h libc3/fn.h libc3/s16.h libc3/buf_inspect_s8_octal.h libc3/log.c libc3/error.h libc3/buf_inspect_u64_octal.h libc3/set_item.h.in libc3/compare.c libc3/buf_inspect_s8_binary.h libc3/buf_inspect_uw_hexadecimal.h libc3/uw.c libc3/eval.c libc3/set__fact.c libc3/sym.h libc3/env.h libc3/cfn.c libc3/buf_inspect_u16_octal.h libc3/u.h.in libc3/buf_parse_s16.c libc3/s8.h libc3/quote.h libc3/buf_inspect_s32.h libc3/buf_inspect.c libc3/buf_parse_u.h.in libc3/skiplist_node__fact.h libc3/skiplist__fact.c libc3/buf_inspect_s32_hexadecimal.h libc3/ceiling.h libc3/list.c libc3/buf_inspect_u64.c libc3/facts.h libc3/buf_inspect_u16_decimal.c libc3/facts_with_cursor.c libc3/buf_inspect_sw_decimal.c libc3/facts_cursor.c libc3/buf_inspect_u64_binary.h libc3/buf_inspect_sw_hexadecimal.h libc3/buf_inspect_s32_decimal.h libc3/u16.h libc3/buf_inspect_s64_octal.h libc3/buf_inspect_u8_binary.h libc3/buf_inspect_s8.h libc3/buf_inspect_s16_octal.h libc3/ucd.c libc3/buf_inspect_s16_binary.h libc3/tuple.c libc3/buf_inspect_uw_octal.h libc3/buf_parse_u8.c libc3/tag.h libc3/float.h libc3/buf_inspect_u_base.c.in libc3/buf_parse_u16.c libc3/buf_inspect_u16_hexadecimal.h libc3/buf_inspect_s8_decimal.c libc3/buf_inspect_u32.h libc3/array.c libc3/buf_parse_sw.h libc3/set.h.in libc3/s.c.in libc3/buf_parse_s.c.in libc3/map.h libc3/skiplist.h.in libc3/set__tag.h libc3/buf_inspect_s64.c libc3/io.c libc3/set_item__tag.c libc3/sequence.c libc3/types.h libc3/buf_inspect_uw.c libc3/buf_inspect_u32_binary.c libc3/buf_inspect_s64_decimal.h libc3/set_cursor.c.in libc3/ident.c libc3/buf_inspect_s64_hexadecimal.c libc3/bool.h libc3/s.h.in libc3/set.c.in libc3/skiplist.c.in libc3/operator.h libc3/fn_clause.h libc3/buf_parse_s.h.in libc3/buf_inspect_s16.c libc3/binding.c libc3/ptag.h libc3/buf_parse_s32.h libc3/var.h libc3/set_item__fact.h libc3/u8.c libc3/set_cursor.h.in libc3/f32.c libc3/buf_inspect_sw_octal.h libc3/c3.h libc3/arg.h libc3/buf_inspect_u8_hexadecimal.c libc3/buf_inspect_u32_hexadecimal.h libc3/buf_parse_u64.c libc3/module.c libc3/frame.h libc3/buf_inspect_s16_decimal.c libc3/file.h libc3/sw.h libc3/s32.c libc3/error_handler.c libc3/str.c libc3/buf_parse.h libc3/buf_inspect_uw_binary.c libc3/buf_inspect_uw_decimal.h libc3/facts_spec_cursor.c libc3/u64.h libc3/buf_inspect_u_base.h.in libc3/buf_inspect_s32_octal.h libc3/f64.h libc3/buf_inspect_u8_octal.h libc3/buf_inspect_s64_binary.c libc3/buf_inspect_u64_hexadecimal.c libc3/buf_inspect_u16_binary.c libc3/buf_save.h libc3/buf_inspect_u16.c libc3/buf_inspect_s8_hexadecimal.c libc3/u.c.in libc3/buf_inspect_sw.h libc3/facts_with.c libc3/buf_parse_u.c.in libc3/buf_parse_u32.h libc3/set_cursor__fact.c libc3/buf.h libc3/set_cursor__tag.h libc3/buf_inspect_s16_hexadecimal.h libc3/buf_inspect_u32_decimal.h libc3/buf_parse_uw.c libc3/buf_parse_s64.c libc3/abs.h libc3/buf_inspect_sw_binary.c libc3/buf_parse_s8.h libc3/call.h libc3/sign.c libc3/buf_inspect_u8_decimal.h libc3/character.h libc3/buf_inspect_u64_decimal.h libc3/buf_inspect_s_base.h.in libc3/buf_inspect_u32_octal.h libc3/u32.c libc3/hash.c libc3/buf_file.h libc3/integer.c libc3/buf_inspect_u8.c libc3/facts_spec.c libc3/buf_inspect_s32_binary.h libc3/set_item.c.in libc3/s64.h libc3/buf_inspect_u16_decimal.h libc3/facts.c libc3/buf_inspect_u64.h libc3/buf_inspect_sw_decimal.h libc3/facts_with_cursor.h libc3/skiplist_node__fact.c libc3/buf_inspect.h libc3/quote.c libc3/buf_inspect_s32.c libc3/skiplist_node.h.in libc3/s8.c libc3/buf_parse_s16.h libc3/list.h libc3/ceiling.c libc3/buf_inspect_s.h.in libc3/buf_inspect_s32_hexadecimal.c libc3/skiplist__fact.h libc3/uw.h libc3/buf_inspect_uw_hexadecimal.c libc3/buf_inspect_s8_binary.c libc3/compare.h libc3/buf_inspect_u64_octal.c libc3/buf_inspect_u16_octal.c libc3/cfn.h libc3/env.c libc3/set__fact.h libc3/sym.c libc3/eval.h libc3/c3_main.h libc3/buf_inspect_s8_octal.c libc3/s16.c libc3/fn.c libc3/time.c libc3/fact.h libc3/type.c libc3/error.c libc3/log.h libc3/sequence.h libc3/set_item__tag.h libc3/io.h libc3/buf_inspect_s64.h libc3/buf_inspect_s64_hexadecimal.h libc3/window/types.h libc3/window/window.h libc3/window/cairo/demo/window_cairo_demo.c libc3/window/cairo/demo/lightspeed.h libc3/window/cairo/demo/bg_rect.h libc3/window/cairo/demo/window_cairo_demo.h libc3/window/cairo/demo/lightspeed.c libc3/window/cairo/demo/bg_rect.c libc3/window/cairo/xcb/demo/window_cairo_xcb_demo.c libc3/window/cairo/xcb/demo/window.c libc3/window/cairo/xcb/window_cairo_xcb.h libc3/window/cairo/xcb/config.h libc3/window/cairo/xcb/window_cairo_xcb.c libc3/window/cairo/types.h libc3/window/cairo/window_cairo.c libc3/window/cairo/quartz/demo/window_cairo_quartz_demo.c libc3/window/cairo/quartz/window_cairo_quartz_view_controller.h libc3/window/cairo/quartz/quartz_to_xkbcommon.c libc3/window/cairo/quartz/window_cairo_quartz.h libc3/window/cairo/quartz/window_cairo_quartz_app_delegate.h libc3/window/cairo/quartz/quartz_to_xkbcommon.h libc3/window/cairo/quartz/xkbquartz.h libc3/window/cairo/quartz/window_cairo_quartz_view.h libc3/window/cairo/window_cairo.h libc3/window/cairo/win32/demo/window_cairo_win32_demo.c libc3/window/cairo/win32/vk_to_xkbcommon.c libc3/window/cairo/win32/window_cairo_win32.h libc3/window/cairo/win32/vk_to_xkbcommon.h libc3/window/cairo/win32/window_cairo_win32.c libc3/window/window.c libc3/ident.h libc3/buf_inspect_s64_decimal.c libc3/buf_inspect_u32_binary.h libc3/buf_inspect_uw.h libc3/buf_inspect_u.c.in libc3/buf_parse_sw.c libc3/array.h libc3/buf_inspect_u32.c libc3/buf_inspect_s8_decimal.h libc3/buf_inspect_u16_hexadecimal.c libc3/buf_parse_u16.h libc3/set__tag.c libc3/map.c libc3/tag.c libc3/buf_parse_u8.h libc3/buf_inspect_uw_octal.c libc3/buf_inspect_u8_binary.c libc3/buf_inspect_s64_octal.c libc3/u16.c libc3/buf_inspect_sw_hexadecimal.c libc3/buf_inspect_s32_decimal.c libc3/buf_inspect_u64_binary.c libc3/facts_cursor.h libc3/tuple.h libc3/buf_inspect_s16_binary.c libc3/ucd.h libc3/buf_inspect_s16_octal.c libc3/buf_inspect_s8.c libc3/sha1.h libc3/buf_inspect_uw_binary.h libc3/buf_parse.c libc3/str.h libc3/error_handler.h libc3/u64.c libc3/buf_inspect_s32_octal.c libc3/facts_spec_cursor.h libc3/buf_inspect_uw_decimal.c libc3/sw.c libc3/file.c libc3/buf_inspect_s16_decimal.h libc3/frame.c libc3/s32.h libc3/c3.c libc3/f32.h libc3/buf_inspect_sw_octal.c libc3/u8.h libc3/set_item__fact.c libc3/var.c libc3/module.h libc3/license.c libc3/buf_inspect_u32_hexadecimal.c libc3/buf_parse_u64.h libc3/buf_inspect_u8_hexadecimal.h libc3/arg.c libc3/fn_clause.c libc3/operator.c libc3/bool.c libc3/buf_parse_s32.c libc3/ptag.c libc3/binding.h libc3/buf_inspect_u.h.in libc3/buf_inspect_s16.h libc3/integer.h libc3/buf_file.c libc3/s64.c libc3/buf_inspect_s32_binary.c libc3/buf_inspect_u8.h libc3/facts_spec.h libc3/buf_inspect_u8_decimal.c libc3/sign.h libc3/call.c libc3/buf_parse_s8.c libc3/buf_inspect_sw_binary.h libc3/hash.h libc3/u32.h libc3/buf_inspect_u32_octal.c libc3/character.c libc3/buf_inspect_u64_decimal.c libc3/buf_parse_uw.h libc3/buf_inspect_u32_decimal.c libc3/buf_inspect_s16_hexadecimal.c libc3/set_cursor__tag.c libc3/set_cursor__fact.h libc3/buf.c libc3/abs.c libc3/buf_parse_s64.h libc3/buf_inspect_s.c.in libc3/buf_inspect_s64_binary.h libc3/buf_inspect_u8_octal.c libc3/f64.c libc3/skiplist_node.c.in libc3/buf_parse_u32.c libc3/facts_with.h libc3/buf_inspect_sw.c libc3/buf_inspect_u16.h libc3/buf_inspect_s8_hexadecimal.h libc3/buf_inspect_u16_binary.h libc3/buf_inspect_u64_hexadecimal.h libc3/buf_save.c test/ident_test.c test/buf_parse_test_s16.c test/buf_inspect_test.c test/libc3_test.c test/fn_test.c test/buf_parse_test_u16.c test/str_test.c test/cfn_test.c test/character_test.c test/buf_parse_test_s8.c test/skiplist__fact_test.c test/sym_test.c test/tag_test.h test/buf_file_test.c test/bool_test.c test/fact_test.h test/buf_parse_test_u64.c test/compare_test.c test/facts_with_test.c test/array_test.c test/buf_parse_test.h test/test.h test/buf_parse_test_su.h test/env_test.c test/buf_parse_test_s64.c test/types_test.c test/hash_test.c test/call_test.c test/set__tag_test.c test/facts_test.c test/facts_cursor_test.c test/compare_test.h test/buf_parse_test_s32.c test/test.c test/buf_parse_test.c test/fact_test.c test/tag_test.c test/set__fact_test.c test/buf_parse_test_u32.c test/buf_test.c test/list_test.c test/buf_parse_test_u8.c test/tuple_test.c ucd2c/ucd.h ucd2c/ucd2c.c '