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#ifndef _AL_WSTR_H
#define _AL_WSTR_H
#include "types.h"
#include "lib.h"
#include "str.h"
#include <wchar.h>
typedef struct {
u32 len;
u32 alloc;
wchar_t *data;
} wstr;
#define AL_WSTR_EMPTY (wstr){ 0, 0, NULL }
#define al_wstr_at(w, i) (w)->data[i]
#define al_wstr_atr(w, i) (w)->data[(w)->len + i]
#define AL_WSTR_FMT "%.*ls"
#define AL_WSTR_PRINTF(w) (w)->len, (w)->data
#define AL_WSTR_PRINTF_MAXLEN(w, l) AL_MIN((w)->len, (l)), (w)->data
static inline s32 al_wchar_width(wchar_t wc)
{
return wcwidth(wc);
}
static inline void al_wstr_free(wstr *w)
{
if (w->alloc > 0) al_free(w->data);
}
static inline u32 al_wstr_reserve(wstr *w, u32 size)
{
if (size < al_grow_limit) {
size = al_next_power_of_two(size + 1);
} else {
size = (size + al_grow_limit) & ~al_grow_limit;
}
if (size <= w->alloc) return w->alloc;
w->data = (wchar_t *)((!w->data) ? al_malloc(size) : al_realloc(w->data, size));
return size;
}
static inline void al_wstr_sized(wstr *w, u32 size)
{
*w = AL_WSTR_EMPTY;
w->alloc = al_wstr_reserve(w, size * sizeof(wchar_t));
al_memset(w->data, 0, w->alloc);
}
static inline void al_wstr_from_cstr(wstr *w, char *c)
{
size_t n = mbstowcs(NULL, c, 0) + 1;
al_wstr_sized(w, n);
w->len = mbstowcs(w->data, c, n);
w->data[w->len] = L'\0';
}
static inline void al_wstr_from_str(wstr *w, str *s)
{
char *c_str = al_str_to_c_str(s);
al_wstr_from_cstr(w, c_str);
al_free(c_str);
}
static inline s32 al_wstr_width(wstr *w)
{
s32 width = 0;
for (u32 i = 0; i < w->len; i++) {
width += al_wchar_width(al_wstr_at(w, i));
}
return width;
}
#endif // _AL_WSTR_H
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