blob: 86f9d646ac9e16251120ba09366537da92c102b4 [file] [log] [blame]
#include <wctype.h>
/* Consider all legal codepoints as printable except for:
* - C0 and C1 control characters
* - U+2028 and U+2029 (line/para break)
* - U+FFF9 through U+FFFB (interlinear annotation controls)
* The following code is optimized heavily to make hot paths for the
* expected printable characters. */
int iswprint(wint_t wc)
{
if (wc < 0xffU)
return (wc+1 & 0x7f) >= 0x21;
if (wc < 0x2028U || wc-0x202aU < 0xd800-0x202a || wc-0xe000U < 0xfff9-0xe000)
return 1;
if (wc-0xfffcU > 0x10ffff-0xfffc || (wc&0xfffe)==0xfffe)
return 0;
return 1;
}
int __iswprint_l(wint_t c, locale_t l)
{
return iswprint(c);
}
weak_alias(__iswprint_l, iswprint_l);