Support unicode as variables

src/Parser/Lexer.cpp

@@ -105,7 +105,7 @@ IToken* Lexer::LexNext(char16_t c){
         case '_':
             return LexIdentifierOrKeyword();
         default:
-            if (isalpha(c)){
+            if (isalpha(c) || c > 255){
                 return LexIdentifierOrKeyword();
             }
             this -> ScriptData -> Diagnostics -> LogError(DiagnosticCode::UnexpectedCharacter, this -> _position - 1, 1);
@@ -185,7 +185,7 @@ IToken * Lexer::LexIdentifierOrKeyword() {
     while (true){
         char16_t next = this -> Peek();
         if (next == '\0') break;
-        if (isalpha(next) || next == '_'){
+        if (isalpha(next) || next == '_' || next > 255){
             this -> Next();
             end++;
         }

tests/integration/Variables.cpp

@@ -62,4 +62,18 @@ end
     CHECK(variable->EvaluateInteger() == 2);
     delete script;
 }
+
+TEST_CASE( "Able to use emoji", "[integration]" ) {
+    Script* script = Script::Create(uR"(
+💩 = "LJ"
+)");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    script->Evaluate();
+    REQUIRE(script -> HasVariable(uR"(💩)"));
+    auto variable = script->GetVariable(uR"(💩)");
+    REQUIRE(variable != nullptr);
+    CHECK(*variable->EvaluateString() == u"LJ");
+    delete script;
+}
+
 #endif