source: dev/trunk/ab5.0/jenga/src/common/String.cpp

#include "stdafx.h"
#include <boost/numeric/conversion/cast.hpp>
#include <boost/algorithm/string/replace.hpp>

using boost::numeric_cast;
using boost::implicit_cast;

bool Jenga::Common::IsExistString(const Jenga::Common::Strings &strings, const std::string &findStr)
{
    return boost::find(strings, findStr) != strings.end();
}

std::string& Jenga::Common::StringReplace(std::string& str, const std::string &sb, const std::string &sa)
{
    boost::algorithm::replace_all(str, sb, sa);
    return str;
}

std::string Jenga::Common::ToString(int n)
{
    // VC++ 2010だとこのキャストが必要。
    return std::to_string(implicit_cast<long long>(n));
}

std::string Jenga::Common::ToString( const std::wstring &wstr )
{
    if (wstr.empty())
    {
        return std::string();
    }
    int srcSize = numeric_cast<int>(wstr.size());
    int needSize = WideCharToMultiByte(
        CP_ACP,
        0,
        wstr.data(), srcSize,
        nullptr, 0,
        nullptr, nullptr);
    if (needSize <= 0)
    {
        throw std::runtime_error("WideCharToMultiByte error");
    }

    std::string ret(needSize, '\0');
    int res = WideCharToMultiByte(
        CP_ACP,
        0,
        wstr.data(), srcSize,
        &ret[0], needSize,
        nullptr, nullptr);
    if (res <= 0)
    {
        throw std::runtime_error("WideCharToMultiByte error");
    }

    return ret;
}

std::wstring Jenga::Common::ToWString(const std::string &str)
{
    if (str.empty())
    {
        return std::wstring();
    }
    int srcSize = numeric_cast<int>(str.size());
    int needSize = MultiByteToWideChar(
        CP_ACP,
        0,
        str.data(), srcSize,
        nullptr, 0);
    if (needSize <= 0)
    {
        throw std::runtime_error("WideCharToMultiByte error");
    }

    std::wstring ret(needSize, L'\0');
    int res = MultiByteToWideChar(
        CP_ACP,
        0,
        str.data(), srcSize,
        &ret[0], needSize);
    if (res <= 0)
    {
        throw std::runtime_error("WideCharToMultiByte error");
    }

    return ret;
}

bool Jenga::Common::IsIdentifierTopChar( char c )
{
    return ('A' <= c && c <= 'Z')
        || ('a' <= c && c <= 'z')
        || c == '_' ;
}

bool Jenga::Common::IsIdentifierChar( char c )
{
    return IsIdentifierTopChar(c)
        || ('0' <= c && c <= '9');
}