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Merge branch 'main' of https://github.com/NeoFlock/neonucleus

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KillTheGoblin 2025-06-08 23:58:13 +02:00
commit f3fb794e76
1 changed files with 40 additions and 5 deletions
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39
src/unicode.c
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@ -45,9 +45,44 @@ size_t nn_unicode_len(const char *s) {
int nn_unicode_codepointAt(const char *s, size_t byteOffset); int nn_unicode_codepointAt(const char *s, size_t byteOffset);
size_t nn_unicode_codepointSize(int codepoint); size_t nn_unicode_codepointSize(int codepoint) {
if (codepoint <= 0x007f) {
return 1;
} else if (codepoint <= 0x07ff) {
return 2;
} else if (codepoint <= 0xffff) {
return 3;
} else if (codepoint <= 0x10ffff) {
return 4;
}
const char *nn_unicode_codepointToChar(int codepoint, size_t *len); return 0;
}
const char *nn_unicode_codepointToChar(int codepoint, size_t *len) {
size_t codepointSize = nn_unicode_codepointSize(codepoint);
*len = codepointSize;
static char buffer[4];
if (codepointSize == 1) {
buffer[0] = (char)codepoint;
} else if (codepointSize == 2) {
buffer[0] = 0b11000000 + (codepoint & 0b11111);
buffer[1] = 0b10000000 + (codepoint >> 5);
} else if (codepointSize == 3) {
buffer[0] = 0b11100000 + (codepoint & 0b1111);
buffer[1] = 0b10000000 + ((codepoint >> 4) & 0b111111);
buffer[2] = 0b10000000 + (codepoint >> 10);
} else if (codepointSize == 4) {
buffer[0] = 0b11110000 + (codepoint & 0b111);
buffer[1] = 0b10000000 + ((codepoint >> 3) & 0b111111);
buffer[2] = 0b10000000 + ((codepoint >> 9) & 0b111111);
buffer[3] = 0b10000000 + (codepoint >> 15);
}
return buffer;
}
size_t nn_unicode_charWidth(int codepoint); size_t nn_unicode_charWidth(int codepoint);