Speed up wcwidth_std in the common case

2026-07-12 10:47:05 +02:00 · 2020-08-06 17:57:57 +05:30
parent df475dfde5
commit 8f9616c230
2 changed files with 2 additions and 0 deletions
--- a/gen-wcwidth.py
+++ b/gen-wcwidth.py
@@ -487,6 +487,7 @@ def gen_wcwidth() -> None:

    with create_header('kitty/wcwidth-std.h') as p:
        p('static int\nwcwidth_std(int32_t code) {')
+        p('\tif (LIKELY(0x20 <= code && code <= 0x7e)) return 1;')
        p('\tswitch(code) {')

        non_printing = class_maps['Cc'] | class_maps['Cf'] | class_maps['Cs']