libcruft-util/string.cpp

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright 2011-2017 Danny Robson <danny@nerdcruft.net>
 */

#include "string.hpp"

#include "./debug.hpp"

#include <cstring>
#include <codecvt>
#include <locale>

using util::tokeniser;


///////////////////////////////////////////////////////////////////////////////
std::string
util::to_utf8 (const wchar_t *src)
{
    using convert_t = std::codecvt_utf8<wchar_t>;
    std::wstring_convert<convert_t,wchar_t> converter;
    return converter.to_bytes (src);
}


//-----------------------------------------------------------------------------
std::string
util::to_utf8 (const std::wstring &src)
{
    return to_utf8 (src.c_str ());
}


///////////////////////////////////////////////////////////////////////////////
// TODO: Horribly inefficient, but God help you if you're relying on this
// being efficient in the first place.
bool
strbegins (const char *restrict str,
           const char *restrict prefix) {
    return 0 == strncmp (prefix, str, strlen (prefix));
}