2 * Copyright (c) 1995-1997, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.9 1997-09-24 13:35:45 adam
8 * Added two members to data1_marctab to ease reading of weird MARC records.
10 * Revision 1.8 1997/09/17 12:10:37 adam
13 * Revision 1.7 1997/09/05 09:50:57 adam
14 * Removed global data1_tabpath - uses data1_get_tabpath() instead.
16 * Revision 1.6 1997/09/04 13:51:58 adam
17 * Added data1 to marc conversion with indicators.
19 * Revision 1.5 1997/09/04 13:48:04 adam
20 * Added data1 to marc conversion.
22 * Revision 1.4 1996/03/25 10:18:03 quinn
23 * Removed trailing whitespace from data elements
25 * Revision 1.3 1995/11/01 16:34:57 quinn
26 * Making data1 look for tables in data1_tabpath
28 * Revision 1.2 1995/11/01 13:54:48 quinn
31 * Revision 1.1 1995/11/01 11:56:08 quinn
32 * Added Retrieval (data management) functions en masse.
51 data1_marctab *data1_read_marctab (data1_handle dh, const char *file)
54 NMEM mem = data1_nmem_get (dh);
55 data1_marctab *res = nmem_malloc(mem, sizeof(*res));
56 char line[512], *argv[50];
59 if (!(f = yaz_path_fopen(data1_get_tabpath(dh), file, "r")))
61 logf(LOG_WARN|LOG_ERRNO, "%s", file);
66 res->reference = VAL_NONE;
68 res->length_data_entry = 4;
69 res->length_starting = 5;
70 res->length_implementation = 0;
71 strcpy(res->future_use, "4");
73 strcpy(res->record_status, "n");
74 strcpy(res->implementation_codes, " ");
75 res->indicator_length = 2;
76 res->identifier_length = 2;
77 res->force_indicator_length = -1;
78 res->force_identifier_length = -1;
79 strcpy(res->user_systems, "z ");
81 while ((argc = readconf_line(f, line, 512, argv, 50)))
82 if (!strcmp(argv[0], "name"))
86 logf(LOG_WARN, "%s: Bad name directive");
89 res->name = nmem_strdup(mem, argv[1]);
91 else if (!strcmp(argv[0], "reference"))
95 logf(LOG_WARN, "%s: Bad name directive");
98 if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
100 logf(LOG_WARN, "%s: Unknown tagset ref '%s' in %s", file,
105 else if (!strcmp(argv[0], "length-data-entry"))
109 logf(LOG_WARN, "%s: Bad data-length-entry");
112 res->length_data_entry = atoi(argv[1]);
114 else if (!strcmp(argv[0], "length-starting"))
118 logf(LOG_WARN, "%s: Bad length-starting");
121 res->length_starting = atoi(argv[1]);
123 else if (!strcmp(argv[0], "length-implementation"))
127 logf(LOG_WARN, "%s: Bad length-implentation");
130 res->length_implementation = atoi(argv[1]);
132 else if (!strcmp(argv[0], "future-use"))
136 logf(LOG_WARN, "%s: Bad future-use");
139 strncpy(res->future_use, argv[1], 2);
141 else if (!strcmp(argv[0], "force-indicator-length"))
145 logf(LOG_WARN, "%s: Bad future-use");
148 res->force_indicator_length = atoi(argv[1]);
150 else if (!strcmp(argv[0], "force-identifier-length"))
154 logf(LOG_WARN, "%s: Bad future-use");
157 res->force_identifier_length = atoi(argv[1]);
160 logf(LOG_WARN, "%s: Bad directive '%s'", file, argv[0]);
167 * Locate some data under this node. This routine should handle variants
170 static char *get_data(data1_node *n, int *len)
174 while (n->which != DATA1N_data && n->child)
176 if (n->which != DATA1N_data || n->u.data.what != DATA1I_text)
178 r = "[Structured/included data]";
183 *len = n->u.data.len;
184 while (*len && isspace(n->u.data.data[*len - 1]))
186 return n->u.data.data;
189 static void memint (char *p, int val, int len)
197 sprintf (buf, "%08d", val);
198 memcpy (p, buf+8-len, len);
202 static int is_indicator (data1_marctab *p, data1_node *subf)
205 if (p->indicator_length != 2 ||
206 (subf->which == DATA1N_tag && strlen(subf->u.tag.tag) == 2))
209 if (subf->which == DATA1N_tag && subf->child->which == DATA1N_tag)
215 static int nodetomarc(data1_marctab *p, data1_node *n, int selected,
216 char **buf, int *size)
220 int base_address = 25;
223 data1_node *field, *subf;
225 for (field = n->child; field; field = field->next)
227 if (field->which != DATA1N_tag)
229 logf(LOG_WARN, "Malformed field composition for marc output.");
232 if (selected && !field->u.tag.node_selected)
234 len += 4 + p->length_data_entry + p->length_starting
235 + p->length_implementation;
236 base_address += 3 + p->length_data_entry + p->length_starting
237 + p->length_implementation;
238 if (strncmp(field->u.tag.tag, "00", 2))
239 len += p->indicator_length; /* this is fairly bogus */
242 /* we'll allow no indicator if length is not 2 */
243 if (is_indicator (p, subf))
246 for (; subf; subf = subf->next)
248 if (subf->which != DATA1N_tag)
251 "Malformed subfield composition for marc output.");
254 if (strncmp(field->u.tag.tag, "00", 2))
255 len += p->identifier_length;
256 get_data(subf, &dlen);
262 *buf = xmalloc(*size = len);
263 else if (*size <= len)
264 *buf = xrealloc(*buf, *size = len);
268 memcpy (op+5, p->record_status, 1);
269 memcpy (op+6, p->implementation_codes, 4);
270 memint (op+10, p->indicator_length, 1);
271 memint (op+11, p->identifier_length, 1);
272 memint (op+12, base_address, 5);
273 memcpy (op+17, p->user_systems, 3);
274 memint (op+20, p->length_data_entry, 1);
275 memint (op+21, p->length_starting, 1);
276 memint (op+22, p->length_implementation, 1);
277 memcpy (op+23, p->future_use, 1);
280 data_p = base_address;
282 for (field = n->child; field; field = field->next)
285 char *indicator_data = " ";
286 if (selected && !field->u.tag.node_selected)
291 if (is_indicator (p, subf))
293 indicator_data = subf->u.tag.tag;
296 if (strncmp(field->u.tag.tag, "00", 2)) /* bogus */
298 memcpy (op + data_p, indicator_data, p->indicator_length);
299 data_p += p->indicator_length;
301 for (; subf; subf = subf->next)
305 if (strncmp(field->u.tag.tag, "00", 2))
307 op[data_p] = ISO2709_IDFS;
308 memcpy (op + data_p+1, subf->u.tag.tag, p->identifier_length-1);
309 data_p += p->identifier_length;
311 data = get_data(subf, &dlen);
312 memcpy (op + data_p, data, dlen);
315 op[data_p++] = ISO2709_FS;
317 memcpy (op + entry_p, field->u.tag.tag, 3);
319 memint (op + entry_p, data_p - data_0, p->length_data_entry);
320 entry_p += p->length_data_entry;
321 memint (op + entry_p, data_0 - base_address, p->length_starting);
322 entry_p += p->length_starting;
323 entry_p += p->length_implementation;
325 op[entry_p++] = ISO2709_FS;
326 assert (entry_p == base_address);
327 op[data_p++] = ISO2709_RS;
328 assert (data_p == len);
332 char *data1_nodetomarc(data1_handle dh, data1_marctab *p, data1_node *n,
333 int selected, int *len)
336 char **buf = data1_get_read_buf (dh, &size);
338 *len = nodetomarc(p, n, selected, buf, size);