2 * Copyright (c) 1995-1997, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1997-09-17 12:10:37 adam
10 * Revision 1.7 1997/09/05 09:50:57 adam
11 * Removed global data1_tabpath - uses data1_get_tabpath() instead.
13 * Revision 1.6 1997/09/04 13:51:58 adam
14 * Added data1 to marc conversion with indicators.
16 * Revision 1.5 1997/09/04 13:48:04 adam
17 * Added data1 to marc conversion.
19 * Revision 1.4 1996/03/25 10:18:03 quinn
20 * Removed trailing whitespace from data elements
22 * Revision 1.3 1995/11/01 16:34:57 quinn
23 * Making data1 look for tables in data1_tabpath
25 * Revision 1.2 1995/11/01 13:54:48 quinn
28 * Revision 1.1 1995/11/01 11:56:08 quinn
29 * Added Retrieval (data management) functions en masse.
48 data1_marctab *data1_read_marctab (data1_handle dh, const char *file)
51 NMEM mem = data1_nmem_get (dh);
52 data1_marctab *res = nmem_malloc(mem, sizeof(*res));
53 char line[512], *argv[50];
56 if (!(f = yaz_path_fopen(data1_get_tabpath(dh), file, "r")))
58 logf(LOG_WARN|LOG_ERRNO, "%s", file);
63 res->reference = VAL_NONE;
65 res->length_data_entry = 4;
66 res->length_starting = 5;
67 res->length_implementation = 0;
68 strcpy(res->future_use, "4");
70 strcpy(res->record_status, "n");
71 strcpy(res->implementation_codes, " ");
72 res->indicator_length = 2;
73 res->identifier_length = 2;
74 strcpy(res->user_systems, "z ");
76 while ((argc = readconf_line(f, line, 512, argv, 50)))
77 if (!strcmp(argv[0], "name"))
81 logf(LOG_WARN, "%s: Bad name directive");
84 res->name = nmem_strdup(mem, argv[1]);
86 else if (!strcmp(argv[0], "reference"))
90 logf(LOG_WARN, "%s: Bad name directive");
93 if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
95 logf(LOG_WARN, "%s: Unknown tagset ref '%s' in %s", file,
100 else if (!strcmp(argv[0], "length-data-entry"))
104 logf(LOG_WARN, "%s: Bad data-length-entry");
107 res->length_data_entry = atoi(argv[1]);
109 else if (!strcmp(argv[0], "length-starting"))
113 logf(LOG_WARN, "%s: Bad length-starting");
116 res->length_starting = atoi(argv[1]);
118 else if (!strcmp(argv[0], "length-implementation"))
122 logf(LOG_WARN, "%s: Bad length-implentation");
125 res->length_implementation = atoi(argv[1]);
127 else if (!strcmp(argv[0], "future-use"))
131 logf(LOG_WARN, "%s: Bad future-use");
134 strncpy(res->future_use, argv[1], 2);
137 logf(LOG_WARN, "%s: Bad directive '%s'", file, argv[0]);
144 * Locate some data under this node. This routine should handle variants
147 static char *get_data(data1_node *n, int *len)
151 while (n->which != DATA1N_data && n->child)
153 if (n->which != DATA1N_data || n->u.data.what != DATA1I_text)
155 r = "[Structured/included data]";
160 *len = n->u.data.len;
161 while (*len && isspace(n->u.data.data[*len - 1]))
163 return n->u.data.data;
166 static void memint (char *p, int val, int len)
174 sprintf (buf, "%08d", val);
175 memcpy (p, buf+8-len, len);
179 static int is_indicator (data1_marctab *p, data1_node *subf)
182 if (p->indicator_length != 2 ||
183 (subf->which == DATA1N_tag && strlen(subf->u.tag.tag) == 2))
186 if (subf->which == DATA1N_tag && subf->child->which == DATA1N_tag)
192 static int nodetomarc(data1_marctab *p, data1_node *n, int selected,
193 char **buf, int *size)
197 int base_address = 25;
200 data1_node *field, *subf;
202 for (field = n->child; field; field = field->next)
204 if (field->which != DATA1N_tag)
206 logf(LOG_WARN, "Malformed field composition for marc output.");
209 if (selected && !field->u.tag.node_selected)
211 len += 4 + p->length_data_entry + p->length_starting
212 + p->length_implementation;
213 base_address += 3 + p->length_data_entry + p->length_starting
214 + p->length_implementation;
215 if (strncmp(field->u.tag.tag, "00", 2))
216 len += p->indicator_length; /* this is fairly bogus */
219 /* we'll allow no indicator if length is not 2 */
220 if (is_indicator (p, subf))
223 for (; subf; subf = subf->next)
225 if (subf->which != DATA1N_tag)
228 "Malformed subfield composition for marc output.");
231 if (strncmp(field->u.tag.tag, "00", 2))
232 len += p->identifier_length;
233 get_data(subf, &dlen);
239 *buf = xmalloc(*size = len);
240 else if (*size <= len)
241 *buf = xrealloc(*buf, *size = len);
245 memcpy (op+5, p->record_status, 1);
246 memcpy (op+6, p->implementation_codes, 4);
247 memint (op+10, p->indicator_length, 1);
248 memint (op+11, p->identifier_length, 1);
249 memint (op+12, base_address, 5);
250 memcpy (op+17, p->user_systems, 3);
251 memint (op+20, p->length_data_entry, 1);
252 memint (op+21, p->length_starting, 1);
253 memint (op+22, p->length_implementation, 1);
254 memcpy (op+23, p->future_use, 1);
257 data_p = base_address;
259 for (field = n->child; field; field = field->next)
262 char *indicator_data = " ";
263 if (selected && !field->u.tag.node_selected)
268 if (is_indicator (p, subf))
270 indicator_data = subf->u.tag.tag;
273 if (strncmp(field->u.tag.tag, "00", 2)) /* bogus */
275 memcpy (op + data_p, indicator_data, p->indicator_length);
276 data_p += p->indicator_length;
278 for (; subf; subf = subf->next)
282 if (strncmp(field->u.tag.tag, "00", 2))
284 op[data_p] = ISO2709_IDFS;
285 memcpy (op + data_p+1, subf->u.tag.tag, p->identifier_length-1);
286 data_p += p->identifier_length;
288 data = get_data(subf, &dlen);
289 memcpy (op + data_p, data, dlen);
292 op[data_p++] = ISO2709_FS;
294 memcpy (op + entry_p, field->u.tag.tag, 3);
296 memint (op + entry_p, data_p - data_0, p->length_data_entry);
297 entry_p += p->length_data_entry;
298 memint (op + entry_p, data_0 - base_address, p->length_starting);
299 entry_p += p->length_starting;
300 entry_p += p->length_implementation;
302 op[entry_p++] = ISO2709_FS;
303 assert (entry_p == base_address);
304 op[data_p++] = ISO2709_RS;
305 assert (data_p == len);
309 char *data1_nodetomarc(data1_handle dh, data1_marctab *p, data1_node *n,
310 int selected, int *len)
313 char **buf = data1_get_read_buf (dh, &size);
315 *len = nodetomarc(p, n, selected, buf, size);