Note the Unicode version in the generated files

Files generated from the same Unicode version will be consistent
regardless of the date they were built.

gen-wcwidth.py

@@ -278,8 +278,8 @@ def write_case(spec: Union[Tuple[int, ...], int], p: Callable[..., None], for_go
 def create_header(path: str, include_data_types: bool = True) -> Generator[Callable[..., None], None, None]:
     with open(path, 'w') as f:
         p = partial(print, file=f)
-        p('// unicode data, built from the unicode standard on:', date.today())
-        p('// see gen-wcwidth.py')
+        p('// Unicode data, built from the Unicode Standard', '.'.join(map(str, unicode_version())))
+        p(f'// Code generated by {os.path.basename(__file__)}, DO NOT EDIT.', end='\n\n')
         if path.endswith('.h'):
             p('#pragma once')
         if include_data_types:

kittens/unicode_input/names.h

@@ -1,5 +1,6 @@
-// unicode data, built from the unicode standard on: 2022-11-17
-// see gen-wcwidth.py
+// Unicode data, built from the Unicode Standard 15.0.0
+// Code generated by gen-wcwidth.py, DO NOT EDIT.
+
 #pragma once
 #include "data-types.h"
 

kitty/emoji.h

@@ -1,5 +1,6 @@
-// unicode data, built from the unicode standard on: 2022-11-17
-// see gen-wcwidth.py
+// Unicode data, built from the Unicode Standard 15.0.0
+// Code generated by gen-wcwidth.py, DO NOT EDIT.
+
 #pragma once
 #include "data-types.h"
 

kitty/unicode-data.c

@@ -1,5 +1,6 @@
-// unicode data, built from the unicode standard on: 2022-11-17
-// see gen-wcwidth.py
+// Unicode data, built from the Unicode Standard 15.0.0
+// Code generated by gen-wcwidth.py, DO NOT EDIT.
+
 #include "data-types.h"
 
 START_ALLOW_CASE_RANGE

kitty/wcwidth-std.h

@@ -1,5 +1,6 @@
-// unicode data, built from the unicode standard on: 2022-11-17
-// see gen-wcwidth.py
+// Unicode data, built from the Unicode Standard 15.0.0
+// Code generated by gen-wcwidth.py, DO NOT EDIT.
+
 #pragma once
 #include "data-types.h"