concordia-library/concordia/common/text_utils.cpp

#include "concordia/common/text_utils.hpp"
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/case_conv.hpp>
#include <boost/locale.hpp>
#include <string>
#include <algorithm>
#include "utf8/utf8.h"


TextUtils::TextUtils() {
    _lowerConverter =
        StringCaseConverterManager::getInstance().getLowerCaseConverter("pl");
    _upperConverter =
        StringCaseConverterManager::getInstance().getUpperCaseConverter("pl");
}

char TextUtils::_easytolower(char in) {
    if(in <= 'Z' && in >= 'A') {
        return in - ('Z' - 'z');
    }
    return in;
}

std::string TextUtils::toLowerCase(const std::string & text) {
    if (!utf8::is_valid(text.begin(), text.end())) {
        std::string data = text;
        std::transform(data.begin(), data.end(), data.begin(), TextUtils::_easytolower);
        return data;
    }
    return simpleConvert(*_lowerConverter, text);
}

std::string TextUtils::toUpperCase(const std::string & text) {
    return simpleConvert(*_upperConverter, text);
}