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Speed up wcwidth_std in the common case

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Kovid Goyal 2020-08-06 17:57:57 +05:30
parent df475dfde5
commit 8f9616c230
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GPG key ID: 06BC317B515ACE7C
2 changed files with 2 additions and 0 deletions
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1
gen-wcwidth.py
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@ -487,6 +487,7 @@ def add(p: Callable, comment: str, chars_: Union[Set[int], FrozenSet[int]], ret:
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']

1
kitty/wcwidth-std.h generated
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@ -7,6 +7,7 @@ START_ALLOW_CASE_RANGE
static int
wcwidth_std(int32_t code) {
if (LIKELY(0x20 <= code && code <= 0x7e)) return 1;
switch(code) {
// Flags (26 codepoints) {{{
case 0x1f1e6 ... 0x1f1ff: