Add new features to the config command for control of the config file:

- manipulate the autoexec section
- display information on sections and values
- show the used config files and startup command line parameters 
- restart capability
- save config files either in the config or program directory

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3651

include/setup.h

@@ -104,18 +104,18 @@ public:
 	operator int () const throw(WrongType);
 	operator double () const throw(WrongType);
 	operator char const* () const throw(WrongType);
-	void SetValue(std::string const& in,Etype _type = V_CURRENT) throw(WrongType);
+	bool SetValue(std::string const& in,Etype _type = V_CURRENT) throw(WrongType);
 	std::string ToString() const;
 
 private:
 	void destroy() throw();
 	Value& copy(Value const& in) throw(WrongType);
 	void plaincopy(Value const& in) throw();
-	void set_hex(std::string const& in);
-	void set_int(std::string const&in);
-	void set_bool(std::string const& in);
+	bool set_hex(std::string const& in);
+	bool set_int(std::string const&in);
+	bool set_bool(std::string const& in);
 	void set_string(std::string const& in);
-	void set_double(std::string const& in);
+	bool set_double(std::string const& in);
 };
 
 class Property {
@@ -127,7 +127,7 @@ public:
 	void Set_values(const char * const * in);
 	void Set_help(std::string const& str);
 	char const* Get_help();
-	virtual	void SetValue(std::string const& str)=0;
+	virtual	bool SetValue(std::string const& str)=0;
 	Value const& GetValue() const { return value;}
 	Value const& Get_Default_Value() const { return default_value; }
 	//CheckValue returns true  if value is in suggested_values;
@@ -135,10 +135,12 @@ public:
 	//specific features.
 	virtual bool CheckValue(Value const& in, bool warn);
 	//Set interval value to in or default if in is invalid. force always sets the value.
-	void SetVal(Value const& in, bool forced,bool warn=true) {if(forced || CheckValue(in,warn)) value = in; else value = default_value;}
+	bool SetVal(Value const& in, bool forced,bool warn=true) {
+		if(forced || CheckValue(in,warn)) {value = in; return true;} else { value = default_value; return false;}}
 	virtual ~Property(){ } 
 	virtual const std::vector<Value>& GetValues() const;
 	Value::Etype Get_type(){return default_value.type;}
+	Changeable::Value getChange() {return change;}
 
 protected:
 	Value value;
@@ -161,8 +163,10 @@ public:
 		min = _min;
 		max = _max;
 	}
+	int getMin() { return min;}
+	int getMax() { return max;}
 	void SetMinMax(Value const& min,Value const& max) {this->min = min; this->max=max;}
-	void SetValue(std::string const& in);
+	bool SetValue(std::string const& in);
 	~Prop_int(){ }
 	virtual bool CheckValue(Value const& in, bool warn);
 private:
@@ -175,7 +179,7 @@ public:
 		:Property(_propname,when){
 		default_value = value = _value;
 	}
-	void SetValue(std::string const& input);
+	bool SetValue(std::string const& input);
 	~Prop_double(){ }
 };
 
@@ -185,7 +189,7 @@ public:
 		:Property(_propname,when) { 
 		default_value = value = _value;
 	}
-	void SetValue(std::string const& in);
+	bool SetValue(std::string const& in);
 	~Prop_bool(){ }
 };
 
@@ -195,7 +199,7 @@ public:
 		:Property(_propname,when) { 
 		default_value = value = _value;
 	}
-	void SetValue(std::string const& in);
+	bool SetValue(std::string const& in);
 	virtual bool CheckValue(Value const& in, bool warn);
 	~Prop_string(){ }
 };
@@ -207,7 +211,7 @@ public:
 		default_value = value = _value;
 		realpath = _value;
 	}
-	void SetValue(std::string const& in);
+	bool SetValue(std::string const& in);
 	~Prop_path(){ }
 };
 
@@ -217,7 +221,7 @@ public:
 		:Property(_propname,when) { 
 		default_value = value = _value;
 	}
-	void SetValue(std::string const& in);
+	bool SetValue(std::string const& in);
 	~Prop_hex(){ }
 };
 
@@ -248,7 +252,7 @@ public:
 	const char* GetName() const {return sectionname.c_str();}
 
 	virtual std::string GetPropValue(std::string const& _property) const =0;
-	virtual void HandleInputline(std::string const& _line)=0;
+	virtual bool HandleInputline(std::string const& _line)=0;
 	virtual void PrintData(FILE* outfile) const =0;
 	virtual ~Section() { /*Children must call executedestroy ! */}
 };
@@ -281,7 +285,7 @@ public:
 	Prop_path* Get_path(std::string const& _propname) const;
 	Prop_multival* Get_multival(std::string const& _propname) const;
 	Prop_multival_remain* Get_multivalremain(std::string const& _propname) const;
-	void HandleInputline(std::string const& gegevens);
+	bool HandleInputline(std::string const& gegevens);
 	void PrintData(FILE* outfile) const;
 	virtual std::string GetPropValue(std::string const& _property) const;
 	//ExecuteDestroy should be here else the destroy functions use destroyed properties
@@ -299,7 +303,7 @@ public:
 	}
 	Section_prop *GetSection() { return section; }
 	const Section_prop *GetSection() const { return section; }
-	virtual void SetValue(std::string const& input);
+	virtual bool SetValue(std::string const& input);
 	virtual const std::vector<Value>& GetValues() const;
 	~Prop_multival() { delete section; }
 }; //value bevat totale string. setvalue zet elk van de sub properties en checked die.
@@ -308,7 +312,7 @@ class Prop_multival_remain:public Prop_multival{
 public:
 	Prop_multival_remain(std::string const& _propname, Changeable::Value when,std::string const& sep):Prop_multival(_propname,when,sep){ }
 
-	virtual void SetValue(std::string const& input);
+	virtual bool SetValue(std::string const& input);
 };
 
    
@@ -316,7 +320,7 @@ class Section_line: public Section{
 public:
 	Section_line(std::string const& _sectionname):Section(_sectionname){}
 	~Section_line(){ExecuteDestroy(true);}
-	void HandleInputline(std::string const& gegevens);
+	bool HandleInputline(std::string const& gegevens);
 	void PrintData(FILE* outfile) const;
 	virtual std::string GetPropValue(std::string const& _property) const;
 	std::string data;