Refactor record render to separate source
[yaz-moved-to-github.git] / src / zoom-c.c
index 3c1e14e..fa3e7ee 100644 (file)
 #include <yaz/xmalloc.h>
 #include <yaz/otherinfo.h>
 #include <yaz/log.h>
-#include <yaz/marcdisp.h>
 #include <yaz/diagbib1.h>
 #include <yaz/charneg.h>
 #include <yaz/query-charset.h>
-#include <yaz/copy_types.h>
 #include <yaz/snprintf.h>
 #include <yaz/facet.h>
 
@@ -1368,298 +1366,6 @@ ZOOM_API(ZOOM_record)
     return rec;
 }
 
-static yaz_iconv_t iconv_create_charset(const char *record_charset)
-{
-    char to[40];
-    char from[40];
-    yaz_iconv_t cd = 0;
-
-    *from = '\0';
-    strcpy(to, "UTF-8");
-    if (record_charset && *record_charset)
-    {
-        /* Use "from,to" or just "from" */
-        const char *cp = strchr(record_charset, ',');
-        size_t clen = strlen(record_charset);
-        if (cp && cp[1])
-        {
-            strncpy( to, cp+1, sizeof(to)-1);
-            to[sizeof(to)-1] = '\0';
-            clen = cp - record_charset;
-        }
-        if (clen > sizeof(from)-1)
-            clen = sizeof(from)-1;
-        
-        if (clen)
-            strncpy(from, record_charset, clen);
-        from[clen] = '\0';
-    }
-    if (*from && *to)
-        cd = yaz_iconv_open(to, from);
-    return cd;
-}
-
-static const char *return_marc_record(WRBUF wrbuf,
-                                      int marc_type,
-                                      int *len,
-                                      const char *buf, int sz,
-                                      const char *record_charset)
-{
-    yaz_iconv_t cd = iconv_create_charset(record_charset);
-    yaz_marc_t mt = yaz_marc_create();
-    const char *ret_string = 0;
-
-    if (cd)
-        yaz_marc_iconv(mt, cd);
-    yaz_marc_xml(mt, marc_type);
-    if (yaz_marc_decode_wrbuf(mt, buf, sz, wrbuf) > 0)
-    {
-        if (len)
-            *len = wrbuf_len(wrbuf);
-        ret_string = wrbuf_cstr(wrbuf);
-    }
-    yaz_marc_destroy(mt);
-    if (cd)
-        yaz_iconv_close(cd);
-    return ret_string;
-}
-
-static const char *return_opac_record(WRBUF wrbuf,
-                                      int marc_type,
-                                      int *len,
-                                      Z_OPACRecord *opac_rec,
-                                      const char *record_charset)
-{
-    yaz_iconv_t cd = iconv_create_charset(record_charset);
-    yaz_marc_t mt = yaz_marc_create();
-
-    if (cd)
-        yaz_marc_iconv(mt, cd);
-    yaz_marc_xml(mt, marc_type);
-
-    yaz_opac_decode_wrbuf(mt, opac_rec, wrbuf);
-    yaz_marc_destroy(mt);
-
-    if (cd)
-        yaz_iconv_close(cd);
-    if (len)
-        *len = wrbuf_len(wrbuf);
-    return wrbuf_cstr(wrbuf);
-}
-
-static const char *return_string_record(WRBUF wrbuf,
-                                        int *len,
-                                        const char *buf, int sz,
-                                        const char *record_charset)
-{
-    yaz_iconv_t cd = iconv_create_charset(record_charset);
-
-    if (cd)
-    {
-        wrbuf_iconv_write(wrbuf, cd, buf, sz);
-        wrbuf_iconv_reset(wrbuf, cd);
-
-        buf = wrbuf_cstr(wrbuf);
-        sz = wrbuf_len(wrbuf);
-        yaz_iconv_close(cd);
-    }
-    if (len)
-        *len = sz;
-    return buf;
-}
-
-static const char *return_record_wrbuf(WRBUF wrbuf, int *len,
-                                       Z_NamePlusRecord *npr,
-                                       int marctype, const char *charset)
-{
-    Z_External *r = (Z_External *) npr->u.databaseRecord;
-    const Odr_oid *oid = r->direct_reference;
-
-    wrbuf_rewind(wrbuf);
-    /* render bibliographic record .. */
-    if (r->which == Z_External_OPAC)
-    {
-        return return_opac_record(wrbuf, marctype, len,
-                                  r->u.opac, charset);
-    }
-    if (r->which == Z_External_sutrs)
-        return return_string_record(wrbuf, len,
-                                    (char*) r->u.sutrs->buf,
-                                    r->u.sutrs->len,
-                                    charset);
-    else if (r->which == Z_External_octet)
-    {
-        if (yaz_oid_is_iso2709(oid))
-        {
-            const char *ret_buf = return_marc_record(
-                wrbuf, marctype, len,
-                (const char *) r->u.octet_aligned->buf,
-                r->u.octet_aligned->len,
-                charset);
-            if (ret_buf)
-                return ret_buf;
-            /* bad ISO2709. Return fail unless raw (ISO2709) is wanted */
-            if (marctype != YAZ_MARC_ISO2709)
-                return 0;
-        }
-        return return_string_record(wrbuf, len,
-                                    (const char *) r->u.octet_aligned->buf,
-                                    r->u.octet_aligned->len,
-                                    charset);
-    }
-    else if (r->which == Z_External_grs1)
-    {
-        yaz_display_grs1(wrbuf, r->u.grs1, 0);
-        return return_string_record(wrbuf, len,
-                                    wrbuf_buf(wrbuf),
-                                    wrbuf_len(wrbuf),
-                                    charset);
-    }
-    return 0;
-}
-    
-static const char *get_record_format(WRBUF wrbuf, int *len,
-                                     Z_NamePlusRecord *npr,
-                                     int marctype, const char *charset,
-                                     const char *format)
-{
-    const char *res = return_record_wrbuf(wrbuf, len, npr, marctype, charset);
-#if YAZ_HAVE_XML2
-    if (*format == '1' && len)
-    {
-        /* try to XML format res */
-        xmlDocPtr doc;
-        xmlKeepBlanksDefault(0); /* get get xmlDocFormatMemory to work! */
-        doc = xmlParseMemory(res, *len);
-        if (doc)
-        {
-            xmlChar *xml_mem;
-            int xml_size;
-            xmlDocDumpFormatMemory(doc, &xml_mem, &xml_size, 1);
-            wrbuf_rewind(wrbuf);
-            wrbuf_write(wrbuf, (const char *) xml_mem, xml_size);
-            xmlFree(xml_mem);
-            xmlFreeDoc(doc);
-            res = wrbuf_cstr(wrbuf);
-            *len = wrbuf_len(wrbuf);
-        } 
-    }
-#endif
-    return res;
-}
-
-
-const char *ZOOM_npr_format(Z_NamePlusRecord *npr, const char *schema,
-                            WRBUF wrbuf,
-                            const char *type_spec, int *len)
-{
-    size_t i;
-    char type[40];
-    char charset[40];
-    char format[3];
-    const char *cp = type_spec;
-
-    for (i = 0; cp[i] && cp[i] != ';' && cp[i] != ' ' && i < sizeof(type)-1;
-         i++)
-        type[i] = cp[i];
-    type[i] = '\0';
-    charset[0] = '\0';
-    format[0] = '\0';
-    while (1)
-    {
-        while (cp[i] == ' ')
-            i++;
-        if (cp[i] != ';')
-            break;
-        i++;
-        while (cp[i] == ' ')
-            i++;
-        if (!strncmp(cp + i, "charset=", 8))
-        {
-            size_t j = 0;
-            i = i + 8; /* skip charset= */
-            for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
-            {
-                if (j < sizeof(charset)-1)
-                    charset[j++] = cp[i];
-            }
-            charset[j] = '\0';
-        }
-        else if (!strncmp(cp + i, "format=", 7))
-        {
-            size_t j = 0; 
-            i = i + 7;
-            for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
-            {
-                if (j < sizeof(format)-1)
-                    format[j++] = cp[i];
-            }
-            format[j] = '\0';
-        } 
-    }
-    if (!strcmp(type, "database"))
-    {
-        if (len)
-            *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
-        return npr->databaseName;
-    }
-    else if (!strcmp(type, "schema"))
-    {
-        if (len)
-            *len = schema ? strlen(schema) : 0;
-        return schema;
-    }
-    else if (!strcmp(type, "syntax"))
-    {
-        const char *desc = 0;   
-        if (npr->which == Z_NamePlusRecord_databaseRecord)
-        {
-            Z_External *r = (Z_External *) npr->u.databaseRecord;
-            desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
-        }
-        if (!desc)
-            desc = "none";
-        if (len)
-            *len = strlen(desc);
-        return desc;
-    }
-    if (npr->which != Z_NamePlusRecord_databaseRecord)
-        return 0;
-
-    /* from now on - we have a database record .. */
-    if (!strcmp(type, "render"))
-    {
-        return get_record_format(wrbuf, len, npr, YAZ_MARC_LINE, charset, format);
-    }
-    else if (!strcmp(type, "xml"))
-    {
-        return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
-                                 format);
-    }
-    else if (!strcmp(type, "txml"))
-    {
-        return get_record_format(wrbuf, len, npr, YAZ_MARC_TURBOMARC, charset,
-                                 format);
-    }
-    else if (!strcmp(type, "raw"))
-    {
-        return get_record_format(wrbuf, len, npr, YAZ_MARC_ISO2709, charset,
-            format);
-    }
-    else if (!strcmp(type, "ext"))
-    {
-        if (len) *len = -1;
-        return (const char *) npr->u.databaseRecord;
-    }
-    else if (!strcmp(type, "opac"))
-    {
-        if (npr->u.databaseRecord->which == Z_External_OPAC)
-            return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
-                                     format);
-    }
-    return 0;
-}
-
 ZOOM_API(ZOOM_scanset)
     ZOOM_connection_scan(ZOOM_connection c, const char *start)
 {