[4838] | 1 | /*! |
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[9748] | 2 | * @file executor_substring.h |
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[9737] | 3 | * Definition of a Generic Executor |
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[5391] | 4 | */ |
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[1853] | 5 | |
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[7716] | 6 | /* |
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| 7 | orxonox - the future of 3D-vertical-scrollers |
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[1853] | 8 | |
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[7716] | 9 | Copyright (C) 2004 orx |
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[1853] | 10 | |
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[7716] | 11 | This program is free software; you can redistribute it and/or modify |
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| 12 | it under the terms of the GNU General Public License as published by |
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| 13 | the Free Software Foundation; either version 2, or (at your option) |
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| 14 | any later version. |
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[5141] | 15 | |
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[7716] | 16 | ### File Specific: |
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| 17 | main-programmer: Benjamin Grauer |
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| 18 | co-programmer: ... |
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| 19 | */ |
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[5652] | 20 | |
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[5328] | 21 | |
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[9740] | 22 | |
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[9742] | 23 | #ifndef __EXECUTOR_SUBSTRING_H_ |
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| 24 | #define __EXECUTOR_SUBSTRING_H_ |
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[5641] | 25 | |
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[9740] | 26 | |
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[9742] | 27 | #include "executor_generic.h" |
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[9728] | 28 | #include "substring.h" |
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[9745] | 29 | #ifdef FUNCTOR_CALL_TYPE |
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| 30 | #undef FUNCTOR_CALL_TYPE |
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| 31 | #endif |
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[9748] | 32 | //! Use SubString as the FUNCTION_CALL_TYPE so that we can easily extend the Engine. |
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[9745] | 33 | #define FUNCTOR_CALL_TYPE const SubString |
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[5641] | 34 | |
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[9748] | 35 | /** |
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| 36 | * @brief converts an input string into a value, if no value was converted, uses defaultValue. |
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| 37 | * @param input the input as a String. |
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| 38 | * @param defaultValue the Default Value set, if the input could not be converted into type. |
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| 39 | * @returns either the converted value or defaultValue. |
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| 40 | */ |
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[8035] | 41 | template<typename type> type fromString(const std::string& input, type defaultValue) { return defaultValue; }; |
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[7721] | 42 | template<> bool fromString<bool>(const std::string& input, bool defaultValue); |
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| 43 | template<> int fromString<int>(const std::string& input, int defaultValue); |
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| 44 | template<> unsigned int fromString<unsigned int>(const std::string& input, unsigned int defaultValue); |
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| 45 | template<> float fromString<float>(const std::string& input, float defaultValue); |
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| 46 | template<> char fromString<char>(const std::string& input, char defaultValue); |
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| 47 | template<> const std::string& fromString<const std::string&>(const std::string& input, const std::string& defaultValue); |
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[5641] | 48 | |
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[9748] | 49 | /** |
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| 50 | * @brief converts to any type from a MultiType |
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| 51 | * @param multi the MultiType to convert. |
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| 52 | * @returns the converted Value. |
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| 53 | */ |
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[8035] | 54 | template<typename type> type fromMulti(const MultiType& multi) { /* return defaultValue; */ }; |
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| 55 | template<> bool fromMulti<bool>(const MultiType& multi); |
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| 56 | template<> int fromMulti<int>(const MultiType& multi); |
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| 57 | template<> unsigned int fromMulti<unsigned int>(const MultiType& multi); |
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| 58 | template<> float fromMulti<float>(const MultiType& multi); |
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| 59 | template<> char fromMulti<char>(const MultiType& multi); |
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| 60 | template<> const std::string& fromMulti<const std::string&>(const MultiType& multi); |
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| 61 | |
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[9748] | 62 | /** |
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| 63 | * @brief retrieves a default value from an array of default values, at possition i. |
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| 64 | * @param defaultValues the Array of default values. |
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| 65 | * @param i the index. |
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| 66 | * @returns the Default Value at Position i |
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| 67 | */ |
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[7716] | 68 | template<typename type> type getDefault(const MultiType* const defaultValues, unsigned int i) { return (type)0; }; |
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[7721] | 69 | template<> bool getDefault<bool>(const MultiType* const defaultValues, unsigned int i); |
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| 70 | template<> int getDefault<int>(const MultiType* const defaultValues, unsigned int i); |
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| 71 | template<> unsigned int getDefault<unsigned int>(const MultiType* const defaultValues, unsigned int i); |
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| 72 | template<> float getDefault<float>(const MultiType* const defaultValues, unsigned int i); |
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| 73 | template<> char getDefault<char>(const MultiType* const defaultValues, unsigned int i); |
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| 74 | template<> const std::string& getDefault<const std::string&>(const MultiType* const defaultValues, unsigned int i); |
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[5161] | 75 | |
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[9730] | 76 | |
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| 77 | /** |
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| 78 | * @brief to remove writing errors, this function is Used. |
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| 79 | * @param sub The SubString to use |
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| 80 | * @param default The default Values. |
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| 81 | */ |
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[9736] | 82 | template<> class ExecutorEvaluater <const SubString> |
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[9730] | 83 | { |
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[9731] | 84 | public: |
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[9736] | 85 | /** @brief Executes the Evaluater |
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[9735] | 86 | * @param CallValue the Value that should be converted |
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| 87 | * @param defaults the default Values. |
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| 88 | */ |
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[9736] | 89 | template <typename ToType, int index> |
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[9747] | 90 | static ToType getValue(const SubString& CallValue, const MultiType* const defaults) |
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[9731] | 91 | { |
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[9732] | 92 | return (CallValue.size() > index) ? |
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| 93 | fromString<ToType>(CallValue[index], getDefault<ToType>(defaults, index)) : |
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[9731] | 94 | fromMulti<ToType>(defaults[index]); |
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| 95 | } |
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[9748] | 96 | /** @returns the default Value of a SubString, namely NullSubString or SubString() */ |
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[9736] | 97 | static const SubString& defaultValue() { return SubString::NullSubString; }; |
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[9730] | 98 | }; |
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| 99 | |
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[9742] | 100 | #endif /* __EXECUTOR_SUBSTRING_H_ */ |
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