fix isRTL bug

Signed-off-by: Nsunyaozu <sunyaozu@huawei.com>

frameworks/intl/BUILD.gn

@@ -52,6 +52,7 @@ ohos_shared_library("preferred_language") {
 
 config("intl_util_config") {
   include_dirs = [
+    "include",
     "//third_party/icu/icu4c/source",
     "//third_party/icu/icu4c/source/common",
     "//third_party/icu/icu4c/source/i18n",
@@ -62,7 +63,6 @@ config("intl_util_config") {
 ohos_shared_library("intl_util") {
   public_configs = [ ":intl_util_config" ]
   include_dirs = [
-    "include",
     "//utils/native/base/include",
     "//third_party/libxml2/include",
     "//third_party/libphonenumber/cpp/src",

frameworks/intl/src/character.cpp

@@ -13,11 +13,20 @@
  * limitations under the License.
  */
 #include "character.h"
+#include <set>
 #include "unicode/unistr.h"
 
 namespace OHOS {
 namespace Global {
 namespace I18n {
+static std::set<UCharDirection> RTLDirectionSet = {
+    U_RIGHT_TO_LEFT,
+    U_RIGHT_TO_LEFT_ARABIC,
+    U_RIGHT_TO_LEFT_EMBEDDING,
+    U_RIGHT_TO_LEFT_OVERRIDE,
+    U_RIGHT_TO_LEFT_ISOLATE
+};
+
 bool IsDigit(const std::string &character)
 {
     icu::UnicodeString unicodeString(character.c_str());
@@ -44,7 +53,10 @@ bool IsRTLCharacter(const std::string &character)
     icu::UnicodeString unicodeString(character.c_str());
     UChar32 char32 = unicodeString.char32At(0);
     UCharDirection direction = u_charDirection(char32);
-    return direction == UCharDirection::U_RIGHT_TO_LEFT;
+    if (RTLDirectionSet.find(direction) != RTLDirectionSet.end()) {
+        return true;
+    }
+    return false;
 }
 
 bool IsIdeoGraphic(const std::string &character)