* Determine the number of bytes needed to encode a wide character. */
| 1124 | * Determine the number of bytes needed to encode a wide character. |
| 1125 | */ |
| 1126 | static ssize_t |
| 1127 | xo_utf8_emit_len (wchar_t wc) |
| 1128 | { |
| 1129 | ssize_t len; |
| 1130 | |
| 1131 | if ((wc & ((1 << 7) - 1)) == wc) /* Simple case */ |
| 1132 | len = 1; |
| 1133 | else if ((wc & ((1 << 11) - 1)) == wc) |
| 1134 | len = 2; |
| 1135 | else if ((wc & ((1 << 16) - 1)) == wc) |
| 1136 | len = 3; |
| 1137 | else if ((wc & ((1 << 21) - 1)) == wc) |
| 1138 | len = 4; |
| 1139 | else |
| 1140 | len = -1; /* Invalid */ |
| 1141 | |
| 1142 | return len; |
| 1143 | } |
| 1144 | |
| 1145 | /* |
| 1146 | * Emit one wide character into the given buffer |
no outgoing calls
no test coverage detected