variable.cpp

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/******************************************************
 *  Presage, an extensible predictive text entry system
 *  ---------------------------------------------------
 *
 *  Copyright (C) 2008  Matteo Vescovi <matteo.vescovi@yahoo.co.uk>

    This program is free software; you can redistribute it and/or modify
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
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#include "core/variable.h"

#include <iostream>

Variable::Variable(const char* name)
{
    m_name = name;
    m_name_vector = string_to_vector (name);
}

Variable::Variable(const std::string& name)
{
    m_name = name;
    m_name_vector = string_to_vector(name);
}

Variable::Variable(const std::vector<std::string>& name)
{
    m_name = vector_to_string (name);
    m_name_vector = name;
}

Variable::~Variable()
{
    // nothing to do
}

std::string Variable::get_name () const
{
    return m_name;
}

std::vector<std::string> Variable::get_name_vector () const
{
    return m_name_vector;
}

std::string Variable::get_value () const
{
    return m_value;
}

void Variable::set_value (std::string value)
{
    m_value = value;
    
    notify ();     // notify all observers
}

std::vector<std::string> Variable::string_to_vector(const std::string& str)
{
    const char SEPARATOR = '.';
    
    std::vector<std::string> result;

    size_t length = str.size();
    size_t i = 0;
    std::string acc;
    while (i < length) {
        if (str[i] == SEPARATOR) {
            result.push_back(acc);
            acc.clear();
        } else {
            acc += str[i];
        }
        i++;
    }
    if (!acc.empty()) {
        result.push_back(acc);
    }

    return result;
}

std::string Variable::vector_to_string(const std::vector<std::string>& variable)
{
    std::string result;
    for (size_t i = 0; i < variable.size(); i++) {
        result += variable[i];
        if (i < variable.size() - 1) {
            result += '.';
        }
    }

    return result;
}