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#include <u.h>
static const uchar table[] = {
#include "nonspacing.h"
};
static const uchar wtable[] = {
#include "wide.h"
};
int
wcwidth(wchar_t wc)
{
if (wc < 0xffU)
return (wc+1 & 0x7f) >= 0x21 ? 1 : wc ? -1 : 0;
if ((wc & 0xfffeffffU) < 0xfffe) {
if ((table[table[wc>>8]*32+((wc&255)>>3)]>>(wc&7))&1)
return 0;
if ((wtable[wtable[wc>>8]*32+((wc&255)>>3)]>>(wc&7))&1)
return 2;
return 1;
}
if ((wc & 0xfffe) == 0xfffe)
return -1;
if (wc-0x20000U < 0x20000)
return 2;
if (wc == 0xe0001 || wc-0xe0020U < 0x5f || wc-0xe0100U < 0xef)
return 0;
return 1;
}
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