Symbol editor now has constraints on selection, but part list allows selection inside groups.

Added logical 'xor' operator for scripting.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@534 0fc631ac-6414-0410-93d0-97cfa31319b6

src/script/context.cpp

@@ -352,6 +352,7 @@ void instrBinary (BinaryInstructionType  i, ScriptValueP& a, const ScriptValueP&
 			break;
 		case I_AND:		OPERATOR_I(&&);
 		case I_OR:		OPERATOR_I(||);
+		case I_XOR:		a = to_script((bool)*a != (bool)*b); break;
 		case I_EQ:		OPERATOR_SDI(==);
 		case I_NEQ:		OPERATOR_SDI(!=);
 		case I_LT:		OPERATOR_DI(<);

src/script/parser.cpp

@@ -582,6 +582,7 @@ void parseOper(TokenIterator& input, Script& script, Precedence minPrec, Instruc
 				parseOper(input, script, PREC_CMP,   I_BINARY, I_OR);
 			}
 		}
+		else if (minPrec <= PREC_AND    && token==_("xor"))   parseOper(input, script, PREC_CMP,   I_BINARY, I_XOR);
 		else if (minPrec <= PREC_CMP    && token==_("=")) {
 			if (minPrec <= PREC_SET) {
 				input.add_error(_("Use of '=', did you mean ':=' or '=='?"));

src/script/script.cpp

@@ -146,6 +146,7 @@ String Script::dumpInstr(unsigned int pos, Instruction i) const {
 				case I_MOD:			ret += _("mod");		break;
 				case I_AND:			ret += _("and");		break;
 				case I_OR:			ret += _("or");			break;
+				case I_XOR:			ret += _("xor");		break;
 				case I_EQ:			ret += _("==");			break;
 				case I_NEQ:			ret += _("!=");			break;
 				case I_LT:			ret += _("<");			break;

src/script/script.hpp

@@ -63,6 +63,7 @@ enum BinaryInstructionType
 // Logical
 ,	I_AND			///< logical and			
 ,	I_OR			///< logical or
+,	I_XOR			///< logical xor
 // Comparison
 ,	I_EQ			///< operator ==
 ,	I_NEQ			///< operator !=