1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
#include "Japanese.h"
#include "sjis.h"
#ifdef TEST
#define DISP_E2S 0
#define DISP_S2E 0
#endif
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
/* sjis=>eucjpѴ */
EXTERN_C
SV*
xs_sjis_eucjp(SV* sv_str)
{
unsigned char* src;
STRLEN len;
SV_Buf result;
const unsigned char* src_end;
if( sv_str==&PL_sv_undef )
{
return newSVsv(&PL_sv_undef);
}
if( SvGMAGICAL(sv_str) )
{
mg_get(sv_str);
}
if( !SvOK(sv_str) )
{
return newSVsv(&PL_sv_undef);
}
src = (unsigned char*)SvPV(sv_str, len);
/*fprintf(stderr,"Unicode::Japanese::(xs)sjis_eucjp\n",len); */
/*bin_dump("in ",src,len); */
if( len == 0 )
{
return newSVsv(&PL_sv_undef);
}
SV_Buf_init(&result,len);
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 );
SV_Buf_append_mem(&result,start,src-start);
continue;
}
case CHK_SJIS_C:
{
if( src+2-1<src_end && 0x40<=src[1] && src[1]<=0xfc && src[1]!=0x7f )
{
union {
UJ_UINT16 u16_val;
UJ_UINT8 u8_val[2];
} tmp;
if( 0x9f <= src[1] )
{
tmp.u8_val[0] = src[0]*2 - (src[0]>=0xe0 ? 0xe0 : 0x60);
tmp.u8_val[1] = src[1] + 2;
}else
{
tmp.u8_val[0] = src[0]*2 - (src[0]>=0xe0 ? 0xe1 : 0x61);
tmp.u8_val[1] = src[1] + 0x60 + (src[1] < 0x7f);
}
SV_Buf_append_ch2(&result, tmp.u16_val);
src += 2;
continue;
}
break;
}
case CHK_SJIS_KANA:
{
union {
UJ_UINT16 u16_val;
UJ_UINT8 u8_val[2];
} tmp;
tmp.u8_val[0] = 0x8e;
tmp.u8_val[1] = src[0];
SV_Buf_append_ch2(&result, tmp.u16_val);
++src;
continue;
}
default:
{
#ifdef TEST
fprintf(stderr,"xs_sjis_eucjp: invalid value [%02x] at chk_sjis[%05x]\n",chk_sjis[*src],*src);
#endif
SV_Buf_append_ch(&result,*src);
++src;
}
} /*switch */
/* invalid char */
SV_Buf_append_ch(&result,*src);
++src;
} /*while */
/*bin_dump("out",result.getBegin(),result.getLength()); */
SV_Buf_setLength(&result);
return SV_Buf_getSv(&result);
}
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
/* eucjp=>sjisѴʸȽ */
/* 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=>sjisѴ */
EXTERN_C
SV*
xs_eucjp_sjis(SV* sv_str)
{
unsigned char* src;
STRLEN len;
SV_Buf result;
const unsigned char* src_end;
if( sv_str==&PL_sv_undef )
{
return newSVsv(&PL_sv_undef);
}
if( SvGMAGICAL(sv_str) )
{
mg_get(sv_str);
}
if( !SvOK(sv_str) )
{
return newSVsv(&PL_sv_undef);
}
src = (unsigned char*)SvPV(sv_str, len);
#if DISP_E2S
fprintf(stderr,"Unicode::Japanese::(xs)eucjp_sjis\n",len);
bin_dump("in ",src,len);
#endif
SV_Buf_init(&result,len);
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 );
SV_Buf_append_mem(&result,start,src-start);
continue;
}
case CHK_EUCJP_0212:
{
if( src+3-1<src_end )
{
SV_Buf_append_mem(&result,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 )
{
union {
UJ_UINT16 u16_val;
UJ_UINT8 u8_val[2];
} tmp;
if( src[0]%2 )
{
tmp.u8_val[0] = (src[0]>>1) + (src[0] < 0xdf ? 0x31 : 0x71);
tmp.u8_val[1] = src[1] - ( 0x60 + (src[1] < 0xe0) );
}else
{
tmp.u8_val[0] = (src[0]>>1) + (src[0] < 0xdf ? 0x30 : 0x70);
tmp.u8_val[1] = src[1] - 2;
}
SV_Buf_append_ch2(&result, tmp.u16_val);
src += 2;
continue;
}
break;
}
case CHK_EUCJP_KANA:
{
if( src+2-1<src_end && 0xa1<=src[1] && src[1]<=0xdf )
{
SV_Buf_append_ch(&result,src[1]);
src += 2;
continue;
}
break;
}
default:
{
#ifdef TEST
fprintf(stderr,"xs_eucjp_sjis, invalid value [%02x] at chk_sjis[%05x]\n",chk_sjis[*src],*src);
#endif
}
} /*switch */
/* invalid char */
SV_Buf_append_ch(&result,*src);
++src;
} /*while */
#if DISP_E2S
bin_dump("out",result.getBegin(),result.getLength());
#endif
SV_Buf_setLength(&result);
return SV_Buf_getSv(&result);
}
|
