Added comparison between char32s, added a replace function for string32s

utf8.h

@@ -24,6 +24,7 @@ public:
   char32(const char* s) {c = fetch32((char**)&s);}
   char32(char** s) {c = fetch32(s);}
   bool operator==(char* cs) {return c==fetch32(&cs);}
+  bool operator==(char32 cs) {return c==cs.c;}
   unsigned int operator>>(int a) const {return c>>a;}
 };
 
@@ -40,10 +41,24 @@ struct string32 {
   }
   int size() const {return cs.size();}
   char32 operator[](int i) const {return cs[i];}
+  void replace(string32 find, string32 with) {
+		int havematched(0);
+		int findsize = find.cs.size();
+		for (int index(0); index < cs.size(); index++) {
+			if (cs.at(index) == find.cs.at(havematched))
+				havematched++;
+			if (havematched == findsize) {
+				index -= findsize-1;
+				cs.erase(cs.begin()+index, cs.begin()+index+findsize);
+				cs.insert(cs.begin()+index, with.cs.begin(), with.cs.end());
+				break;
+			}
+		}
+  }
 };
 
 std::ostream& operator<<(std::ostream& stream, const string32& s32) {
   for (int i=0;i<s32.size();i++)
     stream << s32[i];
-  return stream;
+return stream;
 }