library/cpp/charset/cp_encrec.cpp


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#include "codepage.h"

#include <util/stream/output.h>

void Encoder::Tr(const wchar32* in, char* out, size_t len) const {
    while (len--)
        *out++ = Tr(*in++); 
} 
 
void Encoder::Tr(const wchar32* in, char* out) const {
    do { 
        *out++ = Tr(*in); 
    } while (*in++); 
} 
 
void Recoder::Create(const CodePage& source, const Encoder* wideTarget) {
    for (size_t i = 0; i != 256; ++i) {
        Table[i] = wideTarget->Tr(source.unicode[i]); 
        Y_ASSERT(Table[i] != 0 || i == 0);
    } 
} 
 
void Recoder::Create(const CodePage& page, const Encoder* widePage, wchar32 (*mapfunc)(wchar32)) {
    for (size_t i = 0; i != 256; ++i) {
        char c = widePage->Code((*mapfunc)(page.unicode[i])); 
        Table[i] = (c == 0 && i != 0) ? (unsigned char)i : (unsigned char)c; 
    } 
} 
 
void Recoder::Tr(const char* in, char* out, size_t len) const {
    while (len--) 
        *out++ = Table[(unsigned char)*in++]; 
} 
 
void Recoder::Tr(const char* in, char* out) const {
    do { 
        *out++ = Table[(unsigned char)*in]; 
    } while (*in++); 
} 
 
void Recoder::Tr(char* in_out, size_t len) const {
    while (len--) { 
        *in_out = Table[(unsigned char)*in_out]; 
        in_out++; 
    } 
} 
 
void Recoder::Tr(char* in_out) const {
    // assuming that '\0' <--> '\0' 
    do { 
        *in_out = Table[(unsigned char)*in_out]; 
    } while (*in_out++); 
}