Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

LibC: Implement `strxfrm_l`

This commit is contained in:
Bananymous 2025-04-22 00:41:59 +03:00
parent 107b31a0b5
commit 996c5ebe74
1 changed files with 53 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
userspace/libraries/LibC/string.cpp
View File

@ -156,7 +156,12 @@ char* strncat(char* __restrict__ dest, const char* __restrict__ src, size_t n)
int strcoll(const char* s1, const char* s2)
{
switch (__getlocale(LC_COLLATE))
return strcoll_l(s1, s2, __getlocale(LC_COLLATE));
}
int strcoll_l(const char *s1, const char *s2, locale_t locale)
{
switch (locale)
{
case LOCALE_INVALID:
ASSERT_NOT_REACHED();
@ -362,6 +367,53 @@ char* strtok_r(char* __restrict str, const char* __restrict sep, char** __restri
return str;
}
size_t strxfrm(char* __restrict s1, const char* __restrict s2, size_t n)
{
return strxfrm_l(s1, s2, n, __getlocale(LC_COLLATE));
}
size_t strxfrm_l(char* __restrict s1, const char* __restrict s2, size_t n, locale_t locale)
{
(void)s1;
(void)s2;
(void)n;
ASSERT_NOT_REACHED();
switch (locale)
{
case LOCALE_INVALID:
ASSERT_NOT_REACHED();
case LOCALE_POSIX:
return strcmp(s1, s2);
case LOCALE_UTF8:
{
const unsigned char* u1 = (unsigned char*)s1;
const unsigned char* u2 = (unsigned char*)s2;
if (!*u1 || !*u2)
return *u1 - *u2;
wchar_t wc1, wc2;
while (*u1 && *u2)
{
wc1 = BAN::UTF8::to_codepoint(u1);
wc2 = BAN::UTF8::to_codepoint(u2);
if (wc1 == (wchar_t)BAN::UTF8::invalid || wc2 == (wchar_t)BAN::UTF8::invalid)
{
errno = EINVAL;
return -1;
}
if (wc1 != wc2)
break;
u1 += BAN::UTF8::byte_length(*u1);
u2 += BAN::UTF8::byte_length(*u2);
}
return wc1 - wc2;
}
}
ASSERT_NOT_REACHED();
}
char* strsignal(int signum)
{
static char buffer[128];