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/*
* Unicode Conversion Library (UCS2 to EUC-JP)
* 1997-1998 by yoshidam
*
*/
#ifdef USE_EUC
#include <string.h>
#include <stdlib.h>
#include "uconv.h"
#include "u2e.h"
#include "ustring.h"
#if 0
/* Convert UCS2-little into EUC-JP */
int
u2e_conv(const unsigned char* u, unsigned char* e, int len)
{
int i;
int ei;
e[0] = '\0';
for (i = 0, ei = 0; i < len; i+=2) {
unsigned short echar = u2e_tbl[u[i] | (u[i+1] << 8)];
if (echar == 0) { /* Unknown char */
e[ei++] = (unsigned char)'?';
}
else if (echar < 128) { /* ASCII */
e[ei++] = (unsigned char)echar;
}
else if (echar > 0xa0 && echar <= 0xdf) { /* JIS X 0201 kana */
e[ei++] = 0x8e;
e[ei++] = echar & 0xff;
}
else if (echar >= 0x2121 && echar <= 0x6d63) { /* JIS X 0212 */
e[ei++] = 0x8e;
e[ei++] = (echar >> 8) | 0x80;
e[ei++] = (echar & 0xff) | 0x80;
}
else if (echar != 0xffff) { /* JIS X 0208 */
e[ei++] = echar >> 8;
e[ei++] = echar & 0xff;
}
}
e[ei] = '\0';
return ei;
}
#endif
int
u2e_conv2(const unsigned char* u, int len, UString* e,
unknown_unicode unknown_u_conv)
{
int i;
UStr_alloc(e);
for (i = 0; i < len; i+=2) {
unsigned short echar = u2e_tbl[u[i] | (u[i+1] << 8)];
if (echar == 0) { /* Unknown char */
if (unknown_u_conv != NULL) {
unsigned char* ue = unknown_u_conv(u[i] | (u[i+1] << 8));
int len = strlen((char*)ue);
UStr_addChars(e, ue, len);
free(ue);
}
else {
UStr_addChar(e, '?');
}
}
else if (echar < 128) { /* ASCII */
UStr_addChar(e, echar);
}
else if (echar > 0xa0 && echar <= 0xdf) { /* JIS X 0201 kana */
UStr_addChar2(e, 0x8e, echar & 0xff);
}
else if (echar >= 0x2121 && echar <= 0x6d63) { /* JIS X 0212 */
UStr_addChar3(e, 0x8f, (echar >> 8) | 0x80, (echar & 0xff) | 0x80);
}
else if (echar != 0xffff) { /* JIS X 0208 */
UStr_addChar2(e, echar >> 8, echar & 0xff);
}
}
return e->len;
}
#endif /* USE_EUC */
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