library/cpp/charset/wide.cpp


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#include "wide.h"

bool CanBeEncoded(TWtringBuf text, ECharset encoding) { 
    const size_t LEN = 16; 
    const size_t BUFSIZE = LEN * 4; 
    char encodeBuf[BUFSIZE]; 
    wchar16 decodeBuf[BUFSIZE]; 
 
    while (!text.empty()) { 
        TWtringBuf src = text.NextTokAt(LEN); 
        TStringBuf encoded = NDetail::NBaseOps::Recode(src, encodeBuf, encoding); 
        TWtringBuf decoded = NDetail::NBaseOps::Recode(encoded, decodeBuf, encoding); 
        if (decoded != src) 
            return false; 
    } 
 
    return true; 
}