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#include "Japanese.h"
#include "sjis.h"
#ifdef TEST
#define DISP_E2S 0
#define DISP_S2E 0
#endif
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// sjis=>eucjp�Ѵ�
EXTERN_C
SV*
xs_sjis_eucjp(SV* sv_str)
{
if( sv_str==&PL_sv_undef )
{
return newSVsv(&PL_sv_undef);
}
unsigned char* src = (unsigned char*)SvPV(sv_str,PL_na);
int len = sv_len(sv_str);
//fprintf(stderr,"Unicode::Japanese::(xs)sjis_eucjp\n",len);
//bin_dump("in ",src,len);
SV_Buf result(len);
const unsigned char* src_end = src+len;
while( src<src_end )
{
switch(chk_sjis[*src])
{
case CHK_SJIS_THROUGH:
{
const unsigned char* start = src;
while( ++src<src_end && chk_sjis[*src]==CHK_SJIS_THROUGH );
result.append(start,src-start);
continue;
}
case CHK_SJIS_C:
{
if( src+2-1<src_end && 0x40<=src[1] && src[1]<=0xfc && src[1]!=0x7f )
{
unsigned char tmp[2];
if( 0x9f <= src[1] )
{
tmp[0] = src[0]*2 - (src[0]>=0xe0 ? 0xe0 : 0x60);
tmp[1] = src[1] + 2;
}else
{
tmp[0] = src[0]*2 - (src[0]>=0xe0 ? 0xe1 : 0x61);
tmp[1] = src[1] + 0x60 + (src[1] < 0x7f);
}
result.append(tmp,2);
src += 2;
continue;
}
break;
}
case CHK_SJIS_KANA:
{
unsigned char tmp[2] = { 0x8e, src[0], };
result.append(tmp,2);
++src;
continue;
}
default:
{
#ifdef TEST
fprintf(stderr,"xs_sjis_eucjp, unknown check-code[%02x] on char-code[%05x]\n",chk_sjis[*src],*src);
#endif
result.append(*src++);
}
} //switch
// invalid char
result.append(*src++);
} //while
//bin_dump("out",result.getBegin(),result.getLength());
result.setLength();
return result.getSv();
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// eucjp=>sjis�Ѵ�ʸ��Ƚ��
// 1:EUCJP:0212, 3:EUCJP:C 4:EUCJP:KANA
#define CHK_EUCJP_THROUGH 0
#define CHK_EUCJP_0212 1
#define CHK_EUCJP_C 3
#define CHK_EUCJP_KANA 4
static const unsigned char chk_eucjp[256] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 3
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 5
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 7
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 1, // 8
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9
0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // a
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // b
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // c
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // d
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // e
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, // f
};
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// eucjp=>sjis�Ѵ�
EXTERN_C
SV*
xs_eucjp_sjis(SV* sv_str)
{
if( sv_str==&PL_sv_undef )
{
return newSVsv(&PL_sv_undef);
}
unsigned char* src = (unsigned char*)SvPV(sv_str,PL_na);
int len = sv_len(sv_str);
#if DISP_E2S
fprintf(stderr,"Unicode::Japanese::(xs)eucjp_sjis\n",len);
bin_dump("in ",src,len);
#endif
SV_Buf result(len);
const unsigned char* src_end = src+len;
while( src<src_end )
{
switch(chk_eucjp[*src])
{
case CHK_EUCJP_THROUGH:
{
const unsigned char* start = src;
while( ++src<src_end && chk_eucjp[*src]==CHK_EUCJP_THROUGH );
result.append(start,src-start);
continue;
}
case CHK_EUCJP_0212:
{
if( src+3-1<src_end )
{
result.append(UNDEF_SJIS,UNDEF_SJIS_LEN);
src += 3;
continue;
}
break;
}
case CHK_EUCJP_C:
{
if( src+2-1<src_end && 0xa1<=src[1] && src[1]<=0xfe )
{
unsigned char tmp[2];
if( src[0]%2 )
{
tmp[0] = (src[0]>>1) + (src[0] < 0xdf ? 0x31 : 0x71);
tmp[1] = src[1] - ( 0x60 + (src[1] < 0xe0) );
}else
{
tmp[0] = (src[0]>>1) + (src[0] < 0xdf ? 0x30 : 0x70);
tmp[1] = src[1] - 2;
}
result.append(tmp,2);
src += 2;
continue;
}
break;
}
case CHK_EUCJP_KANA:
{
if( src+2-1<src_end && 0xa1<=src[1] && src[1]<=0xdf )
{
result.append(src[1]);
src += 2;
continue;
}
break;
}
default:
{
#ifdef TEST
fprintf(stderr,"xs_eucjp_sjis, unknown check-code[%02x] on char-code[%05x]\n",chk_sjis[*src],*src);
#endif
}
} //switch
// invalid char
result.append(*src++);
} //while
#if DISP_E2S
bin_dump("out",result.getBegin(),result.getLength());
#endif
result.setLength();
return result.getSv();
}
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