2 * Copyright (c) 1995, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.2 1995-11-01 13:54:48 quinn
10 * Revision 1.1 1995/11/01 11:56:08 quinn
11 * Added Retrieval (data management) functions en masse.
27 #define ISO2709_RS 035
28 #define ISO2709_FS 036
29 #define ISO2709_IDFS 037
31 data1_marctab *data1_read_marctab(char *file)
34 data1_marctab *res = xmalloc(sizeof(*res));
35 char line[512], *argv[50];
38 if (!(f = fopen(file, "r")))
40 logf(LOG_WARN|LOG_ERRNO, "%s", file);
45 res->reference = VAL_NONE;
47 res->length_data_entry = 4;
48 res->length_starting = 5;
49 res->length_implementation = 0;
50 strcpy(res->future_use, "4");
52 strcpy(res->record_status, "n");
53 strcpy(res->implementation_codes, " ");
54 res->indicator_length = 2;
55 res->identifier_length = 2;
56 strcpy(res->user_systems, "z ");
58 while ((argc = readconf_line(f, line, 512, argv, 50)))
59 if (!strcmp(argv[0], "name"))
63 logf(LOG_WARN, "%s: Bad name directive");
66 res->name = xmalloc(strlen(argv[1])+1);
67 strcpy(res->name, argv[1]);
69 else if (!strcmp(argv[0], "reference"))
73 logf(LOG_WARN, "%s: Bad name directive");
76 if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
78 logf(LOG_WARN, "%s: Unknown tagset ref '%s' in %s", file,
83 else if (!strcmp(argv[0], "length-data-entry"))
87 logf(LOG_WARN, "%s: Bad data-length-entry");
90 res->length_data_entry = atoi(argv[1]);
92 else if (!strcmp(argv[0], "length-starting"))
96 logf(LOG_WARN, "%s: Bad length-starting");
99 res->length_starting = atoi(argv[1]);
101 else if (!strcmp(argv[0], "length-implementation"))
105 logf(LOG_WARN, "%s: Bad length-implentation");
108 res->length_implementation = atoi(argv[1]);
110 else if (!strcmp(argv[0], "future-use"))
114 logf(LOG_WARN, "%s: Bad future-use");
117 strncpy(res->future_use, argv[1], 2);
120 logf(LOG_WARN, "%s: Bad directive '%s'", file, argv[0]);
127 * Locate some data under this node. This routine should handle variants
130 static char *get_data(data1_node *n, int *len)
134 while (n->which != DATA1N_data && n->child)
136 if (n->which != DATA1N_data || n->u.data.what != DATA1I_text)
138 r = "[Structured/included data]";
143 *len = n->u.data.len;
144 return n->u.data.data;
147 static void memint (char *p, int val, int len)
155 sprintf (buf, "%08d", val);
156 memcpy (p, buf+8-len, len);
160 static int nodetomarc(data1_marctab *p, data1_node *n, int selected,
161 char **buf, int *size)
165 int base_address = 25;
168 data1_node *field, *subf;
170 for (field = n->child; field; field = field->next)
172 if (field->which != DATA1N_tag)
174 logf(LOG_WARN, "Malformed field composition for marc output.");
177 if (selected && !field->u.tag.node_selected)
179 len += 4 + p->length_data_entry + p->length_starting
180 + p->length_implementation;
181 base_address += 3 + p->length_data_entry + p->length_starting
182 + p->length_implementation;
183 if (strncmp(field->u.tag.tag, "00", 2))
184 len += p->indicator_length; /* this is fairly bogus */
185 for (subf = field->child; subf; subf = subf->next)
187 if (subf->which != DATA1N_tag)
190 "Malformed subfield composition for marc output.");
193 if (strncmp(field->u.tag.tag, "00", 2))
194 len += p->identifier_length;
195 get_data(subf, &dlen);
201 *buf = xmalloc(*size = len);
202 else if (*size <= len)
203 *buf = xrealloc(*buf, *size = len);
207 memcpy (op+5, p->record_status, 1);
208 memcpy (op+6, p->implementation_codes, 4);
209 memint (op+10, p->indicator_length, 1);
210 memint (op+11, p->identifier_length, 1);
211 memint (op+12, base_address, 5);
212 memcpy (op+17, p->user_systems, 3);
213 memint (op+20, p->length_data_entry, 1);
214 memint (op+21, p->length_starting, 1);
215 memint (op+22, p->length_implementation, 1);
216 memcpy (op+23, p->future_use, 1);
219 data_p = base_address;
221 for (field = n->child; field; field = field->next)
224 if (selected && !field->u.tag.node_selected)
226 if (strncmp(field->u.tag.tag, "00", 2)) /* bogus */
228 memcpy (op + data_p, " ", p->indicator_length);
229 data_p += p->indicator_length;
231 for (subf = field->child; subf; subf = subf->next)
235 if (strncmp(field->u.tag.tag, "00", 2))
237 op[data_p] = ISO2709_IDFS;
238 memcpy (op + data_p+1, subf->u.tag.tag, p->identifier_length-1);
239 data_p += p->identifier_length;
241 data = get_data(subf, &dlen);
242 memcpy (op + data_p, data, dlen);
245 op[data_p++] = ISO2709_FS;
247 memcpy (op + entry_p, field->u.tag.tag, 3);
249 memint (op + entry_p, data_p - data_0, p->length_data_entry);
250 entry_p += p->length_data_entry;
251 memint (op + entry_p, data_0 - base_address, p->length_starting);
252 entry_p += p->length_starting;
253 entry_p += p->length_implementation;
255 op[entry_p++] = ISO2709_FS;
256 assert (entry_p == base_address);
257 op[data_p++] = ISO2709_RS;
258 assert (data_p == len);
262 char *data1_nodetomarc(data1_marctab *p, data1_node *n, int selected, int *len)
264 static char *buf = 0;
267 *len = nodetomarc(p, n, selected, &buf, &size);