utf8_to_utf16_array

src/common/util.rs

@@ -9,14 +9,6 @@ pub fn array_to_utf8<const X: usize>(array: [u8; X]) -> Result<String, std::stri
         })
 }
 
-
-/*pub fn utf8_to_array<const X: usize>(string: String) -> Result<[u8; X], std::string::FromUtf8Error> {
-    let mut array = [0u8; X];
-    let bytes = string.as_bytes();
-    array[..bytes.len()].clone_from_slice(&bytes);
-    Ok(array)
-}*/
-
 #[macro_export]
 macro_rules! utf8_to_array {
     ($s: expr, $size: expr) => {
@@ -29,6 +21,19 @@ macro_rules! utf8_to_array {
     }
 }
 
+#[macro_export]
+macro_rules! utf8_to_utf16_array {
+    ($s: expr, $size: expr) => {
+        {
+            let mut array = [0u16; $size];
+            //let bytes = $s.as_bytes();
+            let bytes = $s.encode_utf16().collect::<Vec<_>>();
+            array[..bytes.len()].clone_from_slice(&bytes);
+            array
+        }
+    }
+}
+
 
 
 
@@ -43,4 +48,16 @@ mod test {
         e[..4].clone_from_slice(b"asdf");
         assert!(a == e);
     }
+
+    #[test]
+    fn utf8_to_utf16_array() {
+        let utf16 = utf8_to_utf16_array!("asdf", 16);
+        assert!(utf16 == [97, 115, 100, 102, 0,0,0,0,0,0,0,0,0,0,0,0])
+    }
+
+    #[test]
+    fn utf8_to_utf16_array_unicode() {
+        let utf16 = utf8_to_utf16_array!("あいうえお", 16);
+        assert!(utf16 == [0x3042 , 0x3044, 0x3046, 0x3048, 0x304A, 0,0,0,0,0,0,0,0,0,0,0])
+    }
 }