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Implement nn_unicode_wlen

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speedy-lex 2025-06-30 18:07:20 +02:00
parent 0ef58c1458
commit 5aae180c18
1 changed files with 16 additions and 5 deletions
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21
src/unicode.c
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@ -8,7 +8,6 @@ static bool nn_unicode_is_continuation(unsigned char byte) {
} }
bool nn_unicode_validate(const char *b) { bool nn_unicode_validate(const char *b) {
// TODO: validate UTF-8-ness
const unsigned char* s = (const unsigned char*)b; const unsigned char* s = (const unsigned char*)b;
while (*s) { while (*s) {
if(s[0] <= 0x7F) { if(s[0] <= 0x7F) {
@ -168,12 +167,24 @@ const char *nn_unicode_codepointToChar(unsigned int codepoint, size_t *len) {
return buffer; return buffer;
} }
size_t nn_unicode_charWidth(unsigned int codepoint) {
// TODO: implement this
return 1;
}
size_t nn_unicode_wlen(const char *s) {
size_t wlen = 0;
while (*s) {
unsigned int codepoint = nn_unicode_codepointAt(s, 0);
size_t codepointSize = nn_unicode_codepointSize(codepoint);
wlen += nn_unicode_charWidth(codepoint);
s += codepointSize;
}
return wlen;
}
// NOT IMPLEMENTED YET // NOT IMPLEMENTED YET
size_t nn_unicode_charWidth(unsigned int codepoint);
size_t nn_unicode_wlen(const char *s);
unsigned int nn_unicode_upperCodepoint(unsigned int codepoint); unsigned int nn_unicode_upperCodepoint(unsigned int codepoint);
char *nn_unicode_upper(const char *s); char *nn_unicode_upper(const char *s);
unsigned int nn_unicode_lowerCodepoint(unsigned int codepoint); unsigned int nn_unicode_lowerCodepoint(unsigned int codepoint);