1#include "common/wcwidth.h"
 2#include "3rdparty/widecharwidth/widechar_width_c.h"
 3
 4int mk_wcwidth(uint32_t wc) {
 5    // // We render U+1F6E1 (🛡) with a width of 2,
 6    // // but widechar_width says it has a width of 1 because Unicode classifies it as "neutral".
 7    // //
 8    // // So we simply decide the width ourselves
 9    // if (wc == 0x1F6E1) return 2;
10    //
11    // Well terminals do show it as width 1 after all
12
13    int width = widechar_wcwidth(wc);
14
15    switch (width) {
16        case widechar_ambiguous:
17        case widechar_private_use:
18            return 1;
19        case widechar_widened_in_9:
20            // Our renderer supports Unicode 9
21            return 2;
22        case widechar_nonprint:
23        case widechar_combining:
24        case widechar_unassigned:
25        case widechar_non_character:
26           return 0;
27        default:
28            // Use the width widechar_width gave us.
29            return width;
30    }
31}