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Extend word commands to use any Unicode whitespace character, GitHub

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issue 5562 from Hongyi Zhao.
This commit is contained in:
nicm
2026-09-01 12:49:49 +00:00
committed by tmux update bot
parent b402687fcd
commit 8f3101d820
5 changed files with 105 additions and 24 deletions
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68
utf8.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: utf8.c,v 1.71 2026/05/12 09:37:25 nicm Exp $ */
/* $OpenBSD: utf8.c,v 1.72 2026/09/01 12:49:49 nicm Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -594,6 +594,72 @@ utf8_towc(const struct utf8_data *ud, wchar_t *wc)
return (UTF8_DONE);
}
/* Check for a Unicode whitespace character. */
int
utf8_has_whitespace(const struct utf8_data *ud)
{
struct utf8_data tmp;
wchar_t wc;
u_int offset = 0, size;
u_char ch;
while (offset < ud->size) {
ch = ud->data[offset];
if (ch < 0x80) {
wc = ch;
size = 1;
} else {
if (ch >= 0xc2 && ch <= 0xdf)
size = 2;
else if (ch >= 0xe0 && ch <= 0xef)
size = 3;
else if (ch >= 0xf0 && ch <= 0xf4)
size = 4;
else
return (0);
if (size > ud->size - offset)
return (0);
memset(&tmp, 0, sizeof tmp);
memcpy(tmp.data, ud->data + offset, size);
tmp.size = tmp.have = size;
if (utf8_towc(&tmp, &wc) != UTF8_DONE)
return (0);
}
offset += size;
switch (wc) {
case 0x0009:
case 0x000A:
case 0x000B:
case 0x000C:
case 0x000D:
case 0x0020:
case 0x0085:
case 0x00A0:
case 0x1680:
case 0x2000:
case 0x2001:
case 0x2002:
case 0x2003:
case 0x2004:
case 0x2005:
case 0x2006:
case 0x2007:
case 0x2008:
case 0x2009:
case 0x200A:
case 0x2028:
case 0x2029:
case 0x202F:
case 0x205F:
case 0x3000:
return (1);
}
}
return (0);
}
/* Convert wide character to UTF-8 character. */
enum utf8_state
utf8_fromwc(wchar_t wc, struct utf8_data *ud)