-/*
-This file is part of libmspparser
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
+/* $Id$
+
+This file is part of libmspdatafile
+Copyright © 2006 Mikko Rasa, Mikkosoft Productions
Distributed under the LGPL
*/
-#ifndef MSP_PARSER_VALUE_H_
-#define MSP_PARSER_VALUE_H_
+#ifndef MSP_DATAFILE_VALUE_H_
+#define MSP_DATAFILE_VALUE_H_
-#include <sstream>
-#include <string>
#include <vector>
+#include <msp/strings/lexicalcast.h>
+#include "except.h"
namespace Msp {
-namespace Parser {
+namespace DataFile {
+
+enum Type
+{
+ INTEGER,
+ FLOAT,
+ STRING,
+ BOOLEAN,
+ ENUM
+};
+
+template<typename T> struct TypeResolver { static const Type type=ENUM; };
+template<> struct TypeResolver<short> { static const Type type=INTEGER; };
+template<> struct TypeResolver<unsigned short> { static const Type type=INTEGER; };
+template<> struct TypeResolver<int> { static const Type type=INTEGER; };
+template<> struct TypeResolver<unsigned> { static const Type type=INTEGER; };
+template<> struct TypeResolver<long> { static const Type type=INTEGER; };
+template<> struct TypeResolver<unsigned long> { static const Type type=INTEGER; };
+template<> struct TypeResolver<long long> { static const Type type=INTEGER; };
+template<> struct TypeResolver<unsigned long long> { static const Type type=INTEGER; };
+template<> struct TypeResolver<float> { static const Type type=FLOAT; };
+template<> struct TypeResolver<double> { static const Type type=FLOAT; };
+template<> struct TypeResolver<bool> { static const Type type=BOOLEAN; };
+template<> struct TypeResolver<std::string> { static const Type type=STRING; };
+template<typename T> struct TypeResolver<const T> { static const Type type=TypeResolver<T>::type; };
+template<typename T> struct TypeResolver<T &> { static const Type type=TypeResolver<T>::type; };
+template<typename T> struct TypeResolver<const T &> { static const Type type=TypeResolver<T>::type; };
class Value
{
public:
- enum Type
- {
- INTEGER,
- FLOAT,
- STRING,
- BOOLEAN
- };
-
Value(Type t, const std::string &d): type(t), data(d) { }
+
template<typename T>
- T get() const
- {
- std::istringstream ss(data);
- T result;
- ss>>result;
- if(ss.fail())
- throw TypeError("Type mismatch");
- return result;
- }
+ Value(T d): type(TypeResolver<T>::type), data(lexical_cast(d)) { }
+
+ template<typename T>
+ T get() const;
+
+ Type get_type() const { return type; }
+ const std::string &get_raw() const { return data; }
private:
Type type;
std::string data;
};
+
typedef std::vector<Value> ValueArray;
-} // namespace Parser
+template<Type T> inline bool check_type(Type t) { return t==T; }
+template<> inline bool check_type<FLOAT>(Type t) { return t==INTEGER || t==FLOAT; }
+
+template<typename T>
+inline T Value::get() const
+{
+ if(!check_type<TypeResolver<T>::type>(type))
+ throw TypeError("Type mismatch");
+
+ std::istringstream ss(data);
+ T result;
+ ss>>result;
+ if(ss.fail())
+ //XXX
+ throw Exception("Invalid value");
+
+ return result;
+}
+
+template<>
+inline std::string Value::get<std::string>() const
+{
+ if(type!=STRING)
+ throw TypeError("Type mismatch");
+ return data;
+}
+
+template<>
+inline const std::string &Value::get<const std::string&>() const
+{
+ if(type!=STRING)
+ throw TypeError("Type mismatch");
+ return data;
+}
+
+} // namespace DataFile
} // namespace Msp
#endif