int yaz_marc_decode_wrbuf(yaz_marc_t mt, const char *buf, int bsize, WRBUF wr)
{
int s, r = yaz_marc_read_iso2709(mt, buf, bsize);
if (r <= 0)
return r;
s = yaz_marc_write_mode(mt, wr); /* returns 0 for OK, -1 otherwise */
if (s != 0)
return -1; /* error */
return r; /* OK, return length > 0 */
}
static int convert_marc(void *info, WRBUF record, WRBUF wr_error)
{
struct marc_info *mi = info;
const char *input_charset = mi->input_charset;
int ret = 0;
yaz_marc_t mt = yaz_marc_create();
yaz_marc_xml(mt, mi->output_format_mode);
if (mi->leader_spec)
yaz_marc_leader_spec(mt, mi->leader_spec);
if (mi->input_format_mode == YAZ_MARC_ISO2709)
{
int sz = yaz_marc_read_iso2709(mt, wrbuf_buf(record),
wrbuf_len(record));
if (sz > 0)
{
if (yaz_marc_check_marc21_coding(input_charset, wrbuf_buf(record),
wrbuf_len(record)))
input_charset = "utf-8";
ret = 0;
}
else
ret = -1;
}
else if (mi->input_format_mode == YAZ_MARC_MARCXML ||
mi->input_format_mode == YAZ_MARC_TURBOMARC)
{
xmlDocPtr doc = xmlParseMemory(wrbuf_buf(record),
wrbuf_len(record));
if (!doc)
{
wrbuf_printf(wr_error, "xmlParseMemory failed");
ret = -1;
}
else
{
ret = yaz_marc_read_xml(mt, xmlDocGetRootElement(doc));
if (ret)
wrbuf_printf(wr_error, "yaz_marc_read_xml failed");
}
xmlFreeDoc(doc);
}
else
{
wrbuf_printf(wr_error, "unsupported input format");
ret = -1;
}
if (ret == 0)
{
yaz_iconv_t cd = yaz_iconv_open(mi->output_charset, input_charset);
if (cd)
yaz_marc_iconv(mt, cd);
wrbuf_rewind(record);
ret = yaz_marc_write_mode(mt, record);
if (ret)
wrbuf_printf(wr_error, "yaz_marc_write_mode failed");
if (cd)
yaz_iconv_close(cd);
}
yaz_marc_destroy(mt);
return ret;
}