| #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; |
| } |
