Well, +=, -= on dictionaries/lists works now.

1 files changed, 70 insertions, 1 deletions

diff --git a/src/variable.cpp b/src/variable.cpp
index 1100c84..0ce9793 100644
--- a/src/variable.cpp
+++ b/src/variable.cpp
@@ -363,8 +363,77 @@ Variable &Variable::operator+=( const Variable &rhs )
         return *this;
 }
 
+Variable &Variable::operator-=( const Variable &rhs )
+{
+        switch( eType )
+        {
+                case tNull:
+                        throw VariableException("You cannot subtract nulls.");
+
+                case tBool:
+                        throw VariableException("You cannot subtract bools.");
+
+                case tInt:
+                        switch( rhs.eType )
+                        {
+                                case tInt:
+                                        iValue -= rhs.iValue;
+                                        break;
+
+                                case tFloat:
+                                        {
+                                                double dTmp = iValue;
+                                                eType = tFloat;
+                                                fValue = dTmp - rhs.fValue;
+                                        }
+                                        break;
+
+                                default:
+                                        throw VariableException("Int -= invalid...");
+                        }
+                        break;
+
+                case tFloat:
+                        switch( rhs.eType )
+                        {
+                                case tInt:
+                                        fValue -= rhs.iValue;
+                                        break;
+
+                                case tFloat:
+                                        fValue -= rhs.fValue;
+                                        break;
+
+                                default:
+                                        throw VariableException("Int += invalid...");
+                        }
+                        break;
+
+                case tString:
+                        throw VariableException("You cannot subtract strings.");
+                        break;
+
+                case tSituation:
+                        throw VariableException("You cannot subtract situations.");
+                        break;
+                
+                case tVariable:
+                        throw VariableException("You cannot subtract variable names.");
+                        break;
+
+                case tList:
+                        (*lValue).erase( rhs );
+                        break;
+
+                case tDictionary:
+                        (*hValue).erase( rhs );
+                        break;
+        }
+
+        return *this;
+}
+
 /*
-Variable &Variable::operator-=( const Variable &rhs );
 Variable &Variable::operator*=( const Variable &rhs );
 Variable &Variable::operator/=( const Variable &rhs );
 */