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lots of random little fixes

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This commit is contained in:
Blendi-Goose
2025-06-29 11:05:59 +02:00
parent 0c2727c9a7
commit 8f5cfb6be1
4 changed files with 33 additions and 28 deletions
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38
src/unicode.c
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@@ -103,22 +103,22 @@ size_t nn_unicode_len(const char *b) {
unsigned int nn_unicode_codepointAt(const char *s, size_t byteOffset) {
unsigned int point = 0;
const unsigned char *b = (const unsigned char *)s + byteOffset;
const unsigned int subpartMask = 0b111111;
const unsigned char subpartMask = 0b111111;
// look into nn_unicode_codepointToChar as well.
if(b[0] <= 0x7F) {
return b[0];
} else if((b[0] >> 5) == 0b110) {
point += b[0] & 0b11111;
point += (b[1] & subpartMask) << 5;
point += ((unsigned int)(b[0] & 0b11111)) << 6;
point += ((unsigned int)(b[1] & subpartMask));
} else if((b[0] >> 4) == 0b1110) {
point += b[0] & 0b1111;
point += (b[1] & subpartMask) << 4;
point += (b[2] & subpartMask) << 10;
point += ((unsigned int)(b[0] & 0b1111)) << 12;
point += ((unsigned int)(b[1] & subpartMask)) << 6;
point += ((unsigned int)(b[2] & subpartMask));
} else if((b[0] >> 3) == 0b11110) {
point += b[0] & 0b111;
point += (b[1] & subpartMask) << 3;
point += (b[2] & subpartMask) << 9;
point += (b[3] & subpartMask) << 15;
point += ((unsigned int)(b[0] & 0b111)) << 18;
point += ((unsigned int)(b[1] & subpartMask)) << 12;
point += ((unsigned int)(b[2] & subpartMask)) << 6;
point += ((unsigned int)(b[3] & subpartMask));
}
return point;
}
@@ -146,17 +146,17 @@ const char *nn_unicode_codepointToChar(unsigned int codepoint, size_t *len) {
if (codepointSize == 1) {
buffer[0] = (char)codepoint;
} else if (codepointSize == 2) {
buffer[0] = 0b11000000 + (codepoint & 0b11111);
buffer[1] = 0b10000000 + (codepoint >> 5);
buffer[0] = 0b11000000 + ((codepoint >> 6) & 0b11111);
buffer[1] = 0b10000000 + (codepoint & 0b111111);
} else if (codepointSize == 3) {
buffer[0] = 0b11100000 + (codepoint & 0b1111);
buffer[1] = 0b10000000 + ((codepoint >> 4) & 0b111111);
buffer[2] = 0b10000000 + (codepoint >> 10);
buffer[0] = 0b11100000 + ((codepoint >> 12) & 0b1111);
buffer[1] = 0b10000000 + ((codepoint >> 6) & 0b111111);
buffer[2] = 0b10000000 + (codepoint & 0b111111);
} 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);
buffer[0] = 0b11110000 + ((codepoint >> 18) & 0b111);
buffer[1] = 0b10000000 + ((codepoint >> 12) & 0b111111);
buffer[2] = 0b10000000 + ((codepoint >> 6) & 0b111111);
buffer[3] = 0b10000000 + (codepoint & 0b111111);
}
return buffer;