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/*
* Copyright (c) 2015, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "utils/custom_string.h"
#include <cwchar>
#include <cstdlib>
#include <clocale>
#include <cwctype>
#include <new>
#include <algorithm>
#include <vector>
#include <string.h>
#include "utils/logger.h"
#include "utils/macro.h"
namespace {
namespace custom_str = utils::custom_string;
// Calculates amount of characters in UTF string
size_t CalculateLengthOfString(const char* str) {
size_t length_of_string = 0;
for (size_t i = 0; str[i] != '\0'; ++i) {
if ((str[i] & custom_str::kHigestByteOfUTF8Byte2) !=
custom_str::kByteOfUTF8) {
++length_of_string;
}
}
return length_of_string;
}
// Converts string to unicode string.
std::wstring ConvertUTFToWString(const char* str) {
size_t size = CalculateLengthOfString(str);
std::vector<wchar_t> wchar_array(size + 1, L'\0');
std::string current_locale = setlocale(LC_ALL, NULL);
setlocale(LC_ALL, ""); // system locale
mbstowcs(&(wchar_array.front()), str, size);
setlocale(LC_ALL, current_locale.c_str());
return std::wstring(&(wchar_array.front()));
}
// Converts string to lower case unicode string.
void ConvertWStringToLowerCase(std::wstring& str) {
const std::string current_locale = setlocale(LC_ALL, NULL);
setlocale(LC_ALL, "");
std::transform(str.begin(), str.end(), str.begin(), towlower);
setlocale(LC_ALL, current_locale.c_str());
}
}
namespace utils {
namespace custom_string {
CustomString::CustomString() : amount_characters_(0), is_ascii_string_(true) {}
CustomString::CustomString(const std::string& str)
: mb_string_(str), amount_characters_(0), is_ascii_string_(true) {
InitData();
}
CustomString::CustomString(const char* str)
: mb_string_(str), amount_characters_(0), is_ascii_string_(true) {
InitData();
}
CustomString::CustomString(size_t n, char c)
: mb_string_(n, c), amount_characters_(0), is_ascii_string_(true) {
InitData();
}
size_t CustomString::size() const {
return amount_characters_;
}
size_t CustomString::length() const {
return amount_characters_;
}
size_t CustomString::length_bytes() const {
return mb_string_.size();
}
bool CustomString::is_ascii_string() const {
return is_ascii_string_;
}
bool CustomString::empty() const {
return 0 == amount_characters_;
}
bool CustomString::operator==(const CustomString& str) const {
return mb_string_ == str.mb_string_;
}
bool CustomString::operator==(const std::string& str) const {
return mb_string_ == str;
}
CustomString& CustomString::operator=(const char* str) {
mb_string_ = str;
InitData();
return *this;
}
CustomString CustomString::operator+(const CustomString& str) const {
return *this + str.AsMBString();
}
CustomString CustomString::operator+(const std::string& str) const {
if (!str.empty()) {
CustomString result_str(mb_string_ + str);
return result_str;
}
return *this;
}
char CustomString::at(size_t pos) const {
DCHECK_OR_RETURN((is_ascii_string_ && pos < amount_characters_), '\0');
return mb_string_.at(pos);
}
int CustomString::compare(const char* str) const {
return mb_string_.compare(str);
}
int CustomString::compare(const std::string& str) const {
return mb_string_.compare(str);
}
bool CustomString::CompareIgnoreCase(const CustomString& str) const {
if (is_ascii_string() && str.is_ascii_string()) {
return !strcasecmp(c_str(), str.c_str());
}
std::wstring wstr_first(ConvertUTFToWString(mb_string_.c_str()));
std::wstring wstr_second(ConvertUTFToWString(str.c_str()));
ConvertWStringToLowerCase(wstr_first);
ConvertWStringToLowerCase(wstr_second);
return wstr_first == wstr_second;
}
bool CustomString::CompareIgnoreCase(const char* str) const {
return CompareIgnoreCase(CustomString(str));
}
const char* CustomString::c_str() const {
return mb_string_.c_str();
}
std::wstring CustomString::ToWString() const {
return ConvertUTFToWString(mb_string_.c_str());
}
std::string CustomString::AsMBString() const {
return mb_string_;
}
std::wstring CustomString::ToWStringLowerCase() const {
std::wstring wstr(ConvertUTFToWString(mb_string_.c_str()));
ConvertWStringToLowerCase(wstr);
return wstr;
}
void CustomString::InitData() {
if (mb_string_.empty()) {
return;
}
amount_characters_ = CalculateLengthOfString(mb_string_.c_str());
is_ascii_string_ = amount_characters_ == mb_string_.size();
}
} // namespace custom_string
} // namespace utils
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