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char32: add helper functions to work with c32 case

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c4llv07e 2025-10-27 13:24:07 +03:00 • committed by Daniel Eklöf
parent 19466a21d8
commit 71de0c45bc
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2 changed files with 37 additions and 0 deletions
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22
char32.c
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@ -53,6 +53,14 @@ UNITTEST
xassert(c32cmp(U"b", U"a") > 0);
}
UNITTEST
{
xassert(c32ncmp(U"foo", U"foot", 3) == 0);
xassert(c32ncmp(U"foot", U"FOOT", 4) > 0);
xassert(c32ncmp(U"a", U"b", 1) < 0);
xassert(c32ncmp(U"bb", U"aa", 2) > 0);
}
UNITTEST
{
char32_t copy[16];
@ -127,6 +135,20 @@ UNITTEST
xassert(c32cmp(dst, U"foobar12345678") == 0);
}
UNITTEST
{
xassert(!isc32upper(U'a'));
xassert(isc32upper(U'A'));
xassert(!isc32upper(U'a'));
}
UNITTEST
{
xassert(hasc32upper(U"abc1A"));
xassert(!hasc32upper(U"abc1_aaa"));
xassert(!hasc32upper(U""));
}
UNITTEST
{
char32_t *c = xc32dup(U"foobar");

15
char32.h
View file

@ -20,6 +20,10 @@ static inline int c32cmp(const char32_t *s1, const char32_t *s2) {
return wcscmp((const wchar_t *)s1, (const wchar_t *)s2);
}
static inline int c32ncmp(const char32_t *s1, const char32_t *s2, size_t n) {
return wcsncmp((const wchar_t *)s1, (const wchar_t *)s2, n);
}
static inline char32_t *c32ncpy(char32_t *dst, const char32_t *src, size_t n) {
return (char32_t *)wcsncpy((wchar_t *)dst, (const wchar_t *)src, n);
}
@ -60,6 +64,10 @@ static inline char32_t toc32upper(char32_t c) {
return (char32_t)towupper((wint_t)c);
}
static inline bool isc32upper(char32_t c32) {
return iswupper((wint_t)c32);
}
static inline bool isc32space(char32_t c32) {
return iswspace((wint_t)c32);
}
@ -72,6 +80,13 @@ static inline bool isc32graph(char32_t c32) {
return iswgraph((wint_t)c32);
}
static inline bool hasc32upper(const char32_t *s) {
for (int i = 0; s[i] != '\0'; i++) {
if (isc32upper(s[i])) return true;
}
return false;
}
static inline int c32width(char32_t c) {
#if defined(FOOT_GRAPHEME_CLUSTERING)
return utf8proc_charwidth((utf8proc_int32_t)c);