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/*!
* \file language_base.h
*
* \brief Language Base class for Polymorphism.
*/
#ifndef LANGUAGE_BASE_H
#define LANGUAGE_BASE_H
#include <vector>
#include <unordered_map>
#include <string>
/*!
* \namespace Language
* \brief Mnemonic language related namespace.
*/
namespace Language
{
const int unique_prefix_length = 4; /*!< Length of the prefix of all words guaranteed to be unique */
/*!
* \class Base
* \brief A base language class which all languages have to inherit from for
* Polymorphism.
*/
class Base
{
protected:
std::vector<std::string> *word_list; /*!< A pointer to the array of words */
std::unordered_map<std::string, uint32_t> *word_map; /*!< hash table to find word's index */
std::unordered_map<std::string, uint32_t> *trimmed_word_map; /*!< hash table to find word's trimmed index */
std::string language_name; /*!< Name of language */
/*!
* \brief Populates the word maps after the list is ready.
*/
void populate_maps()
{
int ii;
std::vector<std::string>::iterator it;
for (it = word_list->begin(), ii = 0; it != word_list->end(); it++, ii++)
{
(*word_map)[*it] = ii;
if (it->length() > unique_prefix_length)
{
(*trimmed_word_map)[it->substr(0, unique_prefix_length)] = ii;
}
else
{
(*trimmed_word_map)[*it] = ii;
}
}
}
public:
Base()
{
word_list = new std::vector<std::string>;
word_map = new std::unordered_map<std::string, uint32_t>;
trimmed_word_map = new std::unordered_map<std::string, uint32_t>;
}
/*!
* \brief Returns a pointer to the word list.
* \return A pointer to the word list.
*/
const std::vector<std::string>& get_word_list() const
{
return *word_list;
}
/*!
* \brief Returns a pointer to the word map.
* \return A pointer to the word map.
*/
const std::unordered_map<std::string, uint32_t>& get_word_map() const
{
return *word_map;
}
/*!
* \brief Returns a pointer to the trimmed word map.
* \return A pointer to the trimmed word map.
*/
const std::unordered_map<std::string, uint32_t>& get_trimmed_word_map() const
{
return *trimmed_word_map;
}
/*!
* \brief Returns the name of the language.
* \return Name of the language.
*/
std::string get_language_name() const
{
return language_name;
}
};
}
#endif
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