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//StringEx.cpp
//文字列操作関数Ex

#include"../StdAfx.h"
#include"sslib.h"

namespace sslib{
namespace strex{

/*
//Unicodeエスケープをデコード(\uxxxx(16bit),\Uxxxxxxxx(32bit)に対応)
bool decodeUnicodeEscape(std::wstring& result,const TCHAR*src,bool support_32bit,unsigned int c){
    bool decoded=false;
    size_t i=0;
    size_t orig_str_length=lstrlen(src);
    TCHAR* decoded_str=new TCHAR[orig_str_length+1];

    while(*src&&i<orig_str_length){
        if(src[0]==c&&(src[1]=='u'||src[1]=='U')){
            size_t digit=(src[1]=='u'||!support_32bit)?4:8;
            bool esc=true;

            for(size_t ii=2;ii<digit&&esc;ii++){if(src[ii]!='\0'&&(isalpha(src[ii])||isdigit(src[ii]))){continue;}esc=false;}
            if(esc){
                TCHAR tmp[9]={};

                lstrcpyn(tmp,src+2,digit+1);
                decoded_str[i++]=static_cast<TCHAR>(_tcstoul(tmp,NULL,16));
                src+=digit+2;
                decoded=true;
            }
        }else{
            decoded_str[i++]=*src++;
        }
    }

    decoded_str[i]='\0';

    if(decoded){
        result.assign(decoded_str);
        SAFE_DELETE_ARRAY(decoded_str);
        return true;
    }else{
        SAFE_DELETE_ARRAY(decoded_str);
        return false;
    }
    return true;
}
*/

//ファイルサイズを表す文字列をlong longに変換
long long filesize2longlong(const TCHAR* size_str){
    long long result=-1;

#ifdef _MSC_VER
    long double file_size=0;

    _stscanf_s(size_str,_T("%Lf"),&file_size);
#else
    long double file_size=_tcstold(size_str,NULL);
#endif

    //'k'or'kb'
    if(str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-1],'k')||
       str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-2],'k')){
        result=static_cast<long long>(file_size*1024);
    }else if(str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-1],'m')||
             str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-2],'m')){
        result=static_cast<long long>(file_size*(1024<<10));
    }else if(str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-1],'g')||
             str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-2],'g')){
        result=static_cast<long long>(file_size*(1024<<20));
    }else if(str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-1],'t')||
             str::isEqualCharacterIgnoreCase(size_str[lstrlen(size_str)-2],'t')){
        result=static_cast<long long>(file_size*(1024<<30));
    }else{
        result=static_cast<long long>(file_size);
    }

    return result;
}

//long long(バイト単位)をファイルサイズを表す文字列に変換
tstring longlong2filesize(const long long size_ll){
    tstring str;

    if(size_ll<1024)str=format(_T("%I64db"),size_ll);
    else if(size_ll<(1024<<10))str=format(_T("%.2fkb"),size_ll/1024.0);
    else if(size_ll<(1024LL<<20))str=format(_T("%.2fmb"),size_ll/((1024<<10)*1.0));
    else if(size_ll<(1024LL<<30))str=format(_T("%.2fgb"),size_ll/((1024<<20)*1.0));
    else if(size_ll<(1024LL<<40))str=format(_T("%.2ftb"),size_ll/((1024LL<<30)*1.0));
    else str=format(_T("%I64db"),size_ll);

    return str;
}

//FILETIME構造体からlong longへ変換
long long fttoll(FILETIME ft){
    return static_cast<long long>(ft.dwHighDateTime)<<32|ft.dwLowDateTime;
}

//long longからFILETIME構造体へ変換
FILETIME lltoft(long long ll){
    FILETIME ft={};

    ft.dwHighDateTime=static_cast<DWORD>(ll>>32);
    ft.dwLowDateTime=static_cast<DWORD>(ll);
    return ft;
}

//属性を表す文字をDWORDに変換
DWORD attr2DWORD(int c){
    switch(c){
/*
        case 'a':
        case 'A':
            return FILE_ATTRIBUTE_ARCHIVE;
*/
/*
        case 'c':
        case 'C':
            return FILE_ATTRIBUTE_COMPRESSED;
*/
        case 'd':
        case 'D':
            return FILE_ATTRIBUTE_DIRECTORY;
/*
        case 'e':
        case 'E':
            return FILE_ATTRIBUTE_ENCRYPTED;
*/
        case 'h':
        case 'H':
            return FILE_ATTRIBUTE_HIDDEN;
/*
        case 'n':
        case 'N':
            return FILE_ATTRIBUTE_NORMAL;
*/
        case 'r':
        case 'R':
            return FILE_ATTRIBUTE_READONLY;

        case 's':
        case 'S':
            return FILE_ATTRIBUTE_SYSTEM;

        default:
            return 0;
    }
}

//yyyymmddhhmmss(long long型)をSYSTEMTIMEに変換
bool longlong2SYSTEMTIME(SYSTEMTIME* result_st,const long long date_time){
    if(result_st&&date_time>min_date&&date_time<max_date){
        result_st->wYear=static_cast<WORD>(date_time/10000000000);
        result_st->wMonth=static_cast<WORD>((date_time/100000000)%100);
        result_st->wDay=static_cast<WORD>((date_time/1000000)%100);
        result_st->wHour=static_cast<WORD>((date_time/10000)%100);
        result_st->wMinute=static_cast<WORD>((date_time/100)%100);
        result_st->wSecond=static_cast<WORD>(date_time%100);

        if(result_st->wYear<min_date)result_st->wYear=min_date;
        if(result_st->wYear>30827)result_st->wYear=30827;
        if(!result_st->wMonth)result_st->wMonth=1;
        if(!result_st->wDay)result_st->wDay=1;
        return true;
    }
    return false;
}

//SYSTEMTIMEをyyyymmddhhmmss(long long型)に変換
long long SYSTEMTIME2longlong(const SYSTEMTIME& st){
    long long result=0;

    result=st.wYear*10000000000;
    result+=st.wMonth*100000000;
    result+=st.wDay*1000000;
    result+=st.wHour*10000;
    result+=st.wMinute*100;
    result+=st.wSecond;
    return result;
}

//yyyymmddhhmmss(文字列)をyyyymmddhhmmss(long long型)に変換
long long datetime2longlong(const TCHAR* date_time_str,bool max_time){
    long long date_time;

    date_time=_tcstoll(date_time_str,NULL,10);

    if(date_time<min_date)return -1;

    size_t skip_digit=0;

    //不足している桁を補う
    for(;date_time<max_date;){date_time*=10;skip_digit++;}
    //余分な桁を落とす
    for(;date_time>max_date;)date_time/=10;

    if(!((date_time/100000000)%100)&&
       !max_time){
        //月
        date_time+=100000000;
    }

    if(!((date_time/1000000)%100)&&
       !max_time){
        //日
        date_time+=1000000;
    }

    if(max_time){
        for(size_t i=0;i<skip_digit;i++){
            switch(i){
                case 1:
                    //秒
                    date_time+=59;
                    break;

                case 3:
                    //分
                    date_time+=59*100;
                    break;

                case 5:
                    //時間
                    date_time+=23*10000;
                    break;

                case 7:
                    //日
                    date_time+=31*1000000;
                    break;

                case 9:
                    //月
                    date_time+=12*100000000;
                    break;

                default:
                    break;
            }
        }
    }

    return date_time;
}

//yyyymmddhhmmss(long long型)をyyyymmddhhmmss(文字列)に変換
const tstring longlong2datetime(long long date_time){
    if(date_time<min_date||date_time>max_date){
        return _T("");
    }

    return format(_T("%I64d"),date_time);
}

#if 0
//日付と時刻を表す文字列yyyymmddhhmmssをlong longに変換
long long datetime2longlong(const TCHAR* date_time_str,bool max_time){
    FILETIME result_ft={};
    long long date_time;

    date_time=_tcstoll(date_time_str,NULL,10);

    if(date_time<min_date)return -1;

    size_t skip_digit=0;

    //不足している桁を補う
    for(;date_time<max_date;){date_time*=10;skip_digit++;}
    //余分な桁を落とす
    for(;date_time>max_date;)date_time/=10;

    SYSTEMTIME st={0};

    //各数値を抽出
    st.wYear=static_cast<WORD>(date_time/10000000000);
    st.wMonth=static_cast<WORD>((date_time/100000000)%100);
    st.wDay=static_cast<WORD>((date_time/1000000)%100);
    st.wHour=static_cast<WORD>((date_time/10000)%100);
    st.wMinute=static_cast<WORD>((date_time/100)%100);
    st.wSecond=static_cast<WORD>(date_time%100);

    if(!st.wMonth)st.wMonth=1;
    if(!st.wDay)st.wDay=1;

    if(max_time){
        //'D'指定の場合、指定されていない数値を最大にする
        //例えば、'20120101'であれば、時間分秒が指定されていないので、
        //23時59分59秒とする

        //ミリ秒は元から指定できない
        st.wMilliseconds=999;

        for(size_t i=0;i<skip_digit;i++){
            switch(i){
                case 1:
                    //秒
                    st.wSecond=59;
                    break;

                case 3:
                    //分
                    st.wMinute=59;
                    break;

                case 5:
                    //時間
                    st.wHour=23;
                    break;

                case 7:
                    //日
                    st.wDay=31;
                    break;

                case 9:
                    //月
                    st.wMonth=12;
                    break;

                default:
                    break;
            }
        }
    }

    FILETIME tmp={};

    if(!::SystemTimeToFileTime(&st,&tmp)){
        return -1;
    }

    if(!::LocalFileTimeToFileTime(&tmp,&result_ft)){
        return -1;
    }

    return fttoll(result_ft);
}
#endif

#if 0
//long longから日付と時刻を表す文字列yyyymmddhhmmssに変換
const tstring longlong2datetime(long long date_time){
    FILETIME ft={},tmp={};
    SYSTEMTIME st={};
    long long result_ll;

    if(date_time<min_date||date_time>max_date){
        return _T("");
    }

    ft=lltoft(date_time);

    if(!::FileTimeToLocalFileTime(&ft,&tmp)){
        return _T("");
    }
    if(!::FileTimeToSystemTime(&tmp,&st)){
        return _T("");
    }

    result_ll=st.wYear*10000000000;
    result_ll+=st.wMonth*100000000;
    result_ll+=st.wDay*1000000;
    result_ll+=st.wHour*10000;
    result_ll+=st.wMinute*100;
    result_ll+=st.wSecond;


    return format(_T("%I64d"),result_ll);
}
#endif

/*
//GUIDを取得
bool getGUID(TCHAR*str,bool need_brace){
    GUID guid;
    HRESULT result;

    result=::CoInitializeEx(NULL,COINIT_APARTMENTTHREADED);
    if(FAILED(result)){
        return false;
    }

    ::CoCreateGuid(&guid);

    if(need_brace){
        wsprintf(str,_T("%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X"),
                 guid.Data1,
                 guid.Data2,
                 guid.Data3,
                 guid.Data4[0],guid.Data4[1],guid.Data4[2],guid.Data4[3],
                 guid.Data4[4],guid.Data4[5],guid.Data4[6],guid.Data4[7]);
    }else{
        wsprintf(str,_T("%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X"),
                 guid.Data1,
                 guid.Data2,
                 guid.Data3,
                 guid.Data4[0],guid.Data4[1],guid.Data4[2],guid.Data4[3],
                 guid.Data4[4],guid.Data4[5],guid.Data4[6],guid.Data4[7]);
    }

    ::CoUninitialize();

    return true;
}
*/

/*
static DWORD crc_table[256]={
    0x00000000,0x77073096,0xee0e612c,0x990951ba,0x076dc419,0x706af48f,0xe963a535,0x9e6495a3,
    0x0edb8832,0x79dcb8a4,0xe0d5e91e,0x97d2d988,0x09b64c2b,0x7eb17cbd,0xe7b82d07,0x90bf1d91,
    0x1db71064,0x6ab020f2,0xf3b97148,0x84be41de,0x1adad47d,0x6ddde4eb,0xf4d4b551,0x83d385c7,
    0x136c9856,0x646ba8c0,0xfd62f97a,0x8a65c9ec,0x14015c4f,0x63066cd9,0xfa0f3d63,0x8d080df5,
    0x3b6e20c8,0x4c69105e,0xd56041e4,0xa2677172,0x3c03e4d1,0x4b04d447,0xd20d85fd,0xa50ab56b,
    0x35b5a8fa,0x42b2986c,0xdbbbc9d6,0xacbcf940,0x32d86ce3,0x45df5c75,0xdcd60dcf,0xabd13d59,
    0x26d930ac,0x51de003a,0xc8d75180,0xbfd06116,0x21b4f4b5,0x56b3c423,0xcfba9599,0xb8bda50f,
    0x2802b89e,0x5f058808,0xc60cd9b2,0xb10be924,0x2f6f7c87,0x58684c11,0xc1611dab,0xb6662d3d,
    0x76dc4190,0x01db7106,0x98d220bc,0xefd5102a,0x71b18589,0x06b6b51f,0x9fbfe4a5,0xe8b8d433,
    0x7807c9a2,0x0f00f934,0x9609a88e,0xe10e9818,0x7f6a0dbb,0x086d3d2d,0x91646c97,0xe6635c01,
    0x6b6b51f4,0x1c6c6162,0x856530d8,0xf262004e,0x6c0695ed,0x1b01a57b,0x8208f4c1,0xf50fc457,
    0x65b0d9c6,0x12b7e950,0x8bbeb8ea,0xfcb9887c,0x62dd1ddf,0x15da2d49,0x8cd37cf3,0xfbd44c65,
    0x4db26158,0x3ab551ce,0xa3bc0074,0xd4bb30e2,0x4adfa541,0x3dd895d7,0xa4d1c46d,0xd3d6f4fb,
    0x4369e96a,0x346ed9fc,0xad678846,0xda60b8d0,0x44042d73,0x33031de5,0xaa0a4c5f,0xdd0d7cc9,
    0x5005713c,0x270241aa,0xbe0b1010,0xc90c2086,0x5768b525,0x206f85b3,0xb966d409,0xce61e49f,
    0x5edef90e,0x29d9c998,0xb0d09822,0xc7d7a8b4,0x59b33d17,0x2eb40d81,0xb7bd5c3b,0xc0ba6cad,
    0xedb88320,0x9abfb3b6,0x03b6e20c,0x74b1d29a,0xead54739,0x9dd277af,0x04db2615,0x73dc1683,
    0xe3630b12,0x94643b84,0x0d6d6a3e,0x7a6a5aa8,0xe40ecf0b,0x9309ff9d,0x0a00ae27,0x7d079eb1,
    0xf00f9344,0x8708a3d2,0x1e01f268,0x6906c2fe,0xf762575d,0x806567cb,0x196c3671,0x6e6b06e7,
    0xfed41b76,0x89d32be0,0x10da7a5a,0x67dd4acc,0xf9b9df6f,0x8ebeeff9,0x17b7be43,0x60b08ed5,
    0xd6d6a3e8,0xa1d1937e,0x38d8c2c4,0x4fdff252,0xd1bb67f1,0xa6bc5767,0x3fb506dd,0x48b2364b,
    0xd80d2bda,0xaf0a1b4c,0x36034af6,0x41047a60,0xdf60efc3,0xa867df55,0x316e8eef,0x4669be79,
    0xcb61b38c,0xbc66831a,0x256fd2a0,0x5268e236,0xcc0c7795,0xbb0b4703,0x220216b9,0x5505262f,
    0xc5ba3bbe,0xb2bd0b28,0x2bb45a92,0x5cb36a04,0xc2d7ffa7,0xb5d0cf31,0x2cd99e8b,0x5bdeae1d,
    0x9b64c2b0,0xec63f226,0x756aa39c,0x026d930a,0x9c0906a9,0xeb0e363f,0x72076785,0x05005713,
    0x95bf4a82,0xe2b87a14,0x7bb12bae,0x0cb61b38,0x92d28e9b,0xe5d5be0d,0x7cdcefb7,0x0bdbdf21,
    0x86d3d2d4,0xf1d4e242,0x68ddb3f8,0x1fda836e,0x81be16cd,0xf6b9265b,0x6fb077e1,0x18b74777,
    0x88085ae6,0xff0f6a70,0x66063bca,0x11010b5c,0x8f659eff,0xf862ae69,0x616bffd3,0x166ccf45,
    0xa00ae278,0xd70dd2ee,0x4e048354,0x3903b3c2,0xa7672661,0xd06016f7,0x4969474d,0x3e6e77db,
    0xaed16a4a,0xd9d65adc,0x40df0b66,0x37d83bf0,0xa9bcae53,0xdebb9ec5,0x47b2cf7f,0x30b5ffe9,
    0xbdbdf21c,0xcabac28a,0x53b39330,0x24b4a3a6,0xbad03605,0xcdd70693,0x54de5729,0x23d967bf,
    0xb3667a2e,0xc4614ab8,0x5d681b02,0x2a6f2b94,0xb40bbe37,0xc30c8ea1,0x5a05df1b,0x2d02ef8d
};

//CRC32を算出
DWORD crc32(DWORD crc,const BYTE *buf,size_t length){
    crc^=0xffffffffL;

    while(length--){
        crc=crc_table[(crc^*buf++)&0xff]^(crc>>8);
    }
    return crc^0xffffffffL;
}
*/
//namespace strex
}
//namespace sslib
}

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