MyGUI_StringUtility.h

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */
 
#ifndef MYGUI_STRING_UTILITY_H_
#define MYGUI_STRING_UTILITY_H_
 
#include "MyGUI_Prerequest.h"
#include <vector>
#include <sstream>
 
namespace MyGUI
{
    namespace utility
    {
 
        inline void trim(std::string& _str, bool _left = true, bool _right = true)
        {
            if (_right) _str.erase(_str.find_last_not_of(" \t\r") + 1);
            if (_left) _str.erase(0, _str.find_first_not_of(" \t\r"));
        }
 
        // конвертирование в строку
        template<typename T>
        inline std::string toString (T p)
        {
            std::ostringstream stream;
            stream << p;
            return stream.str();
        }
 
        inline const std::string& toString (const std::string& _value)
        {
            return _value;
        }
 
        template<typename T1,  typename T2>
        inline std::string toString (T1 p1, T2 p2)
        {
            std::ostringstream stream;
            stream << p1 << p2;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3>
        inline std::string toString (T1 p1, T2 p2, T3 p3)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4, typename T5>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4, T5 p5)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4 << p5;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4, typename T5, typename T6>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4, T5 p5, T6 p6)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4 << p5 << p6;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4, typename T5, typename T6, typename T7>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4, T5 p5, T6 p6, T7 p7)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4 << p5 << p6 << p7;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4, T5 p5, T6 p6, T7 p7, T8 p8)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4 << p5 << p6 << p7 << p8;
            return stream.str();
        }
 
        template<typename T1,  typename T2,  typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
        inline std::string toString (T1 p1, T2 p2, T3 p3, T4 p4, T5 p5, T6 p6, T7 p7, T8 p8, T9 p9)
        {
            std::ostringstream stream;
            stream << p1 << p2 << p3 << p4 << p5 << p6 << p7 << p8 << p9;
            return stream.str();
        }
 
        template<>
        inline std::string toString<bool> (bool _value)
        {
            return _value ? "true" : "false";
        }
 
 
        // утилиты для парсинга
        template<typename T>
        inline T parseValue( const std::string& _value )
        {
            std::istringstream stream(_value);
            T result;
            stream >> result;
            if (stream.fail())
                return T();
            else
            {
                int item = stream.get();
                while (item != -1)
                {
                    if (item != ' ' && item != '\t')
                        return T();
                    item = stream.get();
                }
            }
            return result;
        }
 
        // отдельная имплементация под bool
        template<>
        inline bool parseValue(const std::string& _value)
        {
            return _value == "True" || _value == "true" || _value == "1";
        }
 
        // отдельная имплементация под char
        template<>
        inline char parseValue(const std::string& _value)
        {
            return (char)parseValue<short>(_value);
        }
 
        // отдельная имплементация под unsigned char
        template<>
        inline unsigned char parseValue(const std::string& _value)
        {
            return (unsigned char)parseValue<unsigned short>(_value);
        }
 
 
        inline short parseShort(const std::string& _value)
        {
            return parseValue<short>(_value);
        }
 
        inline unsigned short parseUShort(const std::string& _value)
        {
            return parseValue<unsigned short>(_value);
        }
 
        inline int parseInt(const std::string& _value)
        {
            return parseValue<int>(_value);
        }
 
        inline unsigned int parseUInt(const std::string& _value)
        {
            return parseValue<unsigned int>(_value);
        }
 
        inline size_t parseSizeT(const std::string& _value)
        {
            return parseValue<size_t>(_value);
        }
 
        inline float parseFloat(const std::string& _value)
        {
            return parseValue<float>(_value);
        }
 
        inline double parseDouble(const std::string& _value)
        {
            return parseValue<double>(_value);
        }
 
        inline bool parseBool(const std::string& _value)
        {
            return parseValue<bool>(_value);
        }
 
        inline char parseChar(const std::string& _value)
        {
            return parseValue<char>(_value);
        }
 
        inline unsigned char parseUChar(const std::string& _value)
        {
            return parseValue<unsigned char>(_value);
        }
 
        // для парсинга сложных типов, состоящих из простых
        template<typename T1, typename T2>
        inline T1 parseValueEx2(const std::string& _value)
        {
            T2 p1, p2;
            std::istringstream stream(_value);
            stream >> p1 >> p2;
            if (stream.fail())
                return T1();
            else
            {
                int item = stream.get();
                while (item != -1)
                {
                    if (item != ' ' && item != '\t')
                        return T1();
                    item = stream.get();
                }
            }
            return T1(p1, p2);
        }
 
        template<typename T1, typename T2>
        inline T1 parseValueEx3(const std::string& _value)
        {
            T2 p1, p2, p3;
            std::istringstream stream(_value);
            stream >> p1 >> p2 >> p3;
            if (stream.fail())
                return T1();
            else
            {
                int item = stream.get();
                while (item != -1)
                {
                    if (item != ' ' && item != '\t')
                        return T1();
                    item = stream.get();
                }
            }
            return T1(p1, p2, p3);
        }
 
        template<typename T1, typename T2>
        inline T1 parseValueEx4(const std::string& _value)
        {
            T2 p1, p2, p3, p4;
            std::istringstream stream(_value);
            stream >> p1 >> p2 >> p3 >> p4;
            if (stream.fail())
                return T1();
            else
            {
                int item = stream.get();
                while (item != -1)
                {
                    if (item != ' ' && item != '\t')
                        return T1();
                    item = stream.get();
                }
            }
            return T1(p1, p2, p3, p4);
        }
 
        namespace templates
        {
            template<typename Type>
            inline void split(std::vector<Type>& _ret, const Type& _source, const Type& _delims)
            {
                size_t start = _source.find_first_not_of(_delims);
                while (start != _source.npos)
                {
                    size_t end = _source.find_first_of(_delims, start);
                    if (end != _source.npos)
                        _ret.push_back(_source.substr(start, end - start));
                    else
                    {
                        _ret.push_back(_source.substr(start));
                        break;
                    }
                    start = _source.find_first_not_of(_delims, end + 1);
                }
            }
        } // namespace templates
 
        inline std::vector<std::string> split(const std::string& _source, const std::string& _delims = "\t\n ")
        {
            std::vector<std::string> result;
            templates::split<std::string>(result, _source, _delims);
            return result;
        }
 
        template<typename T1, typename T2, typename T3, typename T4>
        inline bool parseComplex(const std::string& _value, T1& _p1, T2& _p2, T3& _p3, T4& _p4)
        {
            std::istringstream stream(_value);
 
            stream >> _p1 >> _p2 >> _p3 >> _p4;
 
            if (stream.fail())
                return false;
            int item = stream.get();
            while (item != -1)
            {
                if (item != ' ' && item != '\t')
                    return false;
                item = stream.get();
            }
 
            return true;
        }
 
        template<typename T1, typename T2, typename T3>
        inline bool parseComplex(const std::string& _value, T1& _p1, T2& _p2, T3& _p3)
        {
            std::istringstream stream(_value);
 
            stream >> _p1 >> _p2 >> _p3;
 
            if (stream.fail())
                return false;
            int item = stream.get();
            while (item != -1)
            {
                if (item != ' ' && item != '\t')
                    return false;
                item = stream.get();
            }
 
            return true;
        }
 
        template<typename T1, typename T2>
        inline bool parseComplex(const std::string& _value, T1& _p1, T2& _p2)
        {
            std::istringstream stream(_value);
 
            stream >> _p1 >> _p2;
 
            if (stream.fail())
                return false;
            int item = stream.get();
            while (item != -1)
            {
                if (item != ' ' && item != '\t')
                    return false;
                item = stream.get();
            }
 
            return true;
        }
 
        template<typename T1>
        inline bool parseComplex(const std::string& _value, T1& _p1)
        {
            std::istringstream stream(_value);
 
            stream >> _p1;
 
            if (stream.fail())
                return false;
            int item = stream.get();
            while (item != -1)
            {
                if (item != ' ' && item != '\t')
                    return false;
                item = stream.get();
            }
 
            return true;
        }
 
        template<>
        inline bool parseComplex<bool>(const std::string& _value, bool& _p1)
        {
            std::string value(_value);
            trim(value);
            if ((value == "True") || (value == "true") || (value == "1"))
            {
                _p1 = true;
                return true;
            }
            else if ((value == "False") || (value == "false") || (value == "0"))
            {
                _p1 = false;
                return true;
            }
 
            return false;
        }
 
        inline bool startWith(const std::string& _source, const std::string& _value)
        {
            size_t count = _value.size();
            if (_source.size() < count)
                return false;
            for (size_t index = 0; index < count; ++ index)
            {
                if (_source[index] != _value[index])
                    return false;
            }
            return true;
        }
 
        inline bool endWith(const std::string& _source, const std::string& _value)
        {
            size_t count = _value.size();
            if (_source.size() < count)
                return false;
            size_t offset = _source.size() - count;
            for (size_t index = 0; index < count; ++ index)
            {
                if (_source[index + offset] != _value[index])
                    return false;
            }
            return true;
        }
 
    } // namespace utility
 
} // namespace MyGUI
 
#endif // MYGUI_STRING_UTILITY_H_