2 * Copyright (c) 1995-2002, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
6 * $Id: d1_marc.c,v 1.20 2002-07-03 14:09:34 adam Exp $
16 #include <yaz/marcdisp.h>
17 #include <yaz/readconf.h>
18 #include <yaz/xmalloc.h>
19 #include <yaz/data1.h>
20 #include <yaz/tpath.h>
22 data1_marctab *data1_read_marctab (data1_handle dh, const char *file)
25 NMEM mem = data1_nmem_get (dh);
26 data1_marctab *res = (data1_marctab *)nmem_malloc(mem, sizeof(*res));
27 char line[512], *argv[50];
31 if (!(f = data1_path_fopen(dh, file, "r")))
33 yaz_log(LOG_WARN|LOG_ERRNO, "%s", file);
38 res->reference = VAL_NONE;
40 res->length_data_entry = 4;
41 res->length_starting = 5;
42 res->length_implementation = 0;
43 strcpy(res->future_use, "4");
45 strcpy(res->record_status, "n");
46 strcpy(res->implementation_codes, " ");
47 res->indicator_length = 2;
48 res->identifier_length = 2;
49 res->force_indicator_length = -1;
50 res->force_identifier_length = -1;
51 strcpy(res->user_systems, "z ");
53 while ((argc = readconf_line(f, &lineno, line, 512, argv, 50)))
54 if (!strcmp(*argv, "name"))
58 yaz_log(LOG_WARN, "%s:%d:Missing arg for %s", file, lineno,
62 res->name = nmem_strdup(mem, argv[1]);
64 else if (!strcmp(*argv, "reference"))
68 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
72 if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
74 yaz_log(LOG_WARN, "%s:%d: Unknown tagset reference '%s'",
75 file, lineno, argv[1]);
79 else if (!strcmp(*argv, "length-data-entry"))
83 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
87 res->length_data_entry = atoi(argv[1]);
89 else if (!strcmp(*argv, "length-starting"))
93 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
97 res->length_starting = atoi(argv[1]);
99 else if (!strcmp(*argv, "length-implementation"))
103 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
107 res->length_implementation = atoi(argv[1]);
109 else if (!strcmp(*argv, "future-use"))
113 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
117 strncpy(res->future_use, argv[1], 2);
119 else if (!strcmp(*argv, "force-indicator-length"))
123 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
127 res->force_indicator_length = atoi(argv[1]);
129 else if (!strcmp(*argv, "force-identifier-length"))
133 yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
137 res->force_identifier_length = atoi(argv[1]);
140 yaz_log(LOG_WARN, "%s:%d: Unknown directive '%s'", file, lineno,
148 * Locate some data under this node. This routine should handle variants
151 static char *get_data(data1_node *n, int *len)
155 while (n->which != DATA1N_data && n->child)
157 if (n->which != DATA1N_data ||
158 (n->u.data.what != DATA1I_text && n->u.data.what != DATA1I_num))
160 r = "[Structured/included data]";
165 *len = n->u.data.len;
166 while (*len && d1_isspace(n->u.data.data[*len - 1]))
168 return n->u.data.data;
171 static void memint (char *p, int val, int len)
179 sprintf (buf, "%08d", val);
180 memcpy (p, buf+8-len, len);
184 static int is_indicator (data1_marctab *p, data1_node *subf)
187 if (p->indicator_length != 2 ||
188 (subf && subf->which == DATA1N_tag && strlen(subf->u.tag.tag) == 2))
191 if (subf && subf->which == DATA1N_tag && subf->child->which == DATA1N_tag)
197 static int nodetomarc(data1_marctab *p, data1_node *n, int selected,
198 char **buf, int *size)
202 int base_address = 25;
205 data1_node *field, *subf;
207 yaz_log (LOG_DEBUG, "nodetomarc");
209 for (field = n->child; field; field = field->next)
213 if (field->which != DATA1N_tag)
215 yaz_log(LOG_WARN, "Malformed field composition for marc output.");
218 if (selected && !field->u.tag.node_selected)
220 len += 4 + p->length_data_entry + p->length_starting
221 + p->length_implementation;
222 base_address += 3 + p->length_data_entry + p->length_starting
223 + p->length_implementation;
226 if (subf->which == DATA1N_data)
230 len += p->indicator_length;
231 /* we'll allow no indicator if length is not 2 */
232 if (is_indicator (p, subf))
235 for (; subf; subf = subf->next)
238 len += p->identifier_length;
239 get_data(subf, &dlen);
245 *buf = (char *)xmalloc(*size = len);
246 else if (*size <= len)
247 *buf = (char *)xrealloc(*buf, *size = len);
251 memcpy (op+5, p->record_status, 1);
252 memcpy (op+6, p->implementation_codes, 4);
253 memint (op+10, p->indicator_length, 1);
254 memint (op+11, p->identifier_length, 1);
255 memint (op+12, base_address, 5);
256 memcpy (op+17, p->user_systems, 3);
257 memint (op+20, p->length_data_entry, 1);
258 memint (op+21, p->length_starting, 1);
259 memint (op+22, p->length_implementation, 1);
260 memcpy (op+23, p->future_use, 1);
263 data_p = base_address;
265 for (field = n->child; field; field = field->next)
270 char *indicator_data = " ";
271 if (selected && !field->u.tag.node_selected)
276 if (subf->which == DATA1N_data)
279 if (is_indicator (p, subf))
281 indicator_data = subf->u.tag.tag;
286 memcpy (op + data_p, indicator_data, p->indicator_length);
287 data_p += p->indicator_length;
289 for (; subf; subf = subf->next)
295 const char *identifier = "a";
296 if (subf->which != DATA1N_tag)
297 yaz_log(LOG_WARN, "Malformed fields for marc output.");
299 identifier = subf->u.tag.tag;
300 op[data_p] = ISO2709_IDFS;
301 memcpy (op + data_p+1, identifier, p->identifier_length-1);
302 data_p += p->identifier_length;
304 data = get_data(subf, &dlen);
305 memcpy (op + data_p, data, dlen);
308 op[data_p++] = ISO2709_FS;
310 memcpy (op + entry_p, field->u.tag.tag, 3);
312 memint (op + entry_p, data_p - data_0, p->length_data_entry);
313 entry_p += p->length_data_entry;
314 memint (op + entry_p, data_0 - base_address, p->length_starting);
315 entry_p += p->length_starting;
316 entry_p += p->length_implementation;
318 op[entry_p++] = ISO2709_FS;
319 assert (entry_p == base_address);
320 op[data_p++] = ISO2709_RS;
321 assert (data_p == len);
325 char *data1_nodetomarc(data1_handle dh, data1_marctab *p, data1_node *n,
326 int selected, int *len)
329 char **buf = data1_get_map_buf (dh, &size);
331 n = data1_get_root_tag (dh, n);
334 *len = nodetomarc(p, n, selected, buf, size);