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Fix OSUTF32To8 and OSUTF16To32

This commit is contained in:
Phillip Stephens 2022-02-28 22:04:40 -08:00
parent 72893dcacb
commit 258076c298
Signed by: Antidote
GPG Key ID: F8BEE4C83DACA60D
1 changed files with 10 additions and 10 deletions
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20
lib/OSUTF.c
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@ -3033,7 +3033,7 @@ char16_t* OSUTF32To16(char32_t utf32, char16_t* utf16) {
}
char8_t* OSUTF32To8(char32_t utf32, char8_t* utf8) {
char32_t len = 4;
char32_t len = 0;
if (utf32 < 0xd800 || utf32 > 0xdfff) {
if (utf32 < 0x80) {
utf8[0] = utf32;
@ -3059,7 +3059,7 @@ char8_t* OSUTF32To8(char32_t utf32, char8_t* utf8) {
while (len > 0) {
--len;
*utf8 = ((utf32 >> (len * 6)) & 0x3f) | 0x80;
*utf8 = ((utf32 >> (len * 6 & 0x3fU)) & 0x3f) | 0x80;
++utf8;
}
} else {
@ -3070,26 +3070,26 @@ char8_t* OSUTF32To8(char32_t utf32, char8_t* utf8) {
}
const char16_t* OSUTF16To32(const char16_t* utf16, char32_t* utf32) {
char16_t chr1 = *utf16;
char16_t chr2 = 0;
char32_t outChr = 0;
uint32_t outChr = 0;
uint16_t chr1 = *utf16;
if (chr1 != 0) {
++utf16;
}
if (chr1 < 0xd800 || chr1 > 0xdfff) {
outChr = chr1;
} else if (chr1 > 0xdbff) {
return NULL;
} else {
chr2 = *utf16;
if (chr1 > 0xdbff) {
return NULL;
}
uint16_t chr2 = *utf16;
++utf16;
if (chr2 < 0xdc00 || chr2 > 0xdfff) {
return NULL;
}
outChr = ((chr1 & 0x3ff) << 10 | (chr2 & 0x3ff)) + 0x10000;
outChr = (((chr1 & 0x3ff) << 10) | (chr2 & 0x3ff)) + 0x10000;
}
*utf32 = outChr;
return utf16;
}