2 * Copyright (c) 1995, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.1 1995-11-01 11:56:08 quinn
8 * Added Retrieval (data management) functions en masse.
24 #define ISO2709_RS 035
25 #define ISO2709_FS 036
26 #define ISO2709_IDFS 037
28 data1_marctab *data1_read_marctab(char *file)
31 data1_marctab *res = xmalloc(sizeof(*res));
32 char line[512], *argv[50];
35 if (!(f = fopen(file, "r")))
37 logf(LOG_WARN|LOG_ERRNO, "%s", file);
42 res->reference = VAL_NONE;
44 res->length_data_entry = 4;
45 res->length_starting = 5;
46 res->length_implementation = 0;
47 strcpy(res->future_use, "4");
49 strcpy(res->record_status, "n");
50 strcpy(res->implementation_codes, " ");
51 res->indicator_length = 2;
52 res->identifier_length = 2;
53 strcpy(res->user_systems, "z ");
55 while ((argc = readconf_line(f, line, 512, argv, 50)))
56 if (!strcmp(argv[0], "name"))
60 logf(LOG_WARN, "%s: Bad name directive");
63 res->name = xmalloc(strlen(argv[1])+1);
64 strcpy(res->name, argv[1]);
66 else if (!strcmp(argv[0], "reference"))
70 logf(LOG_WARN, "%s: Bad name directive");
73 if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
75 logf(LOG_WARN, "%s: Unknown tagset ref '%s' in %s", file,
80 else if (!strcmp(argv[0], "length-data-entry"))
84 logf(LOG_WARN, "%s: Bad data-length-entry");
87 res->length_data_entry = atoi(argv[1]);
89 else if (!strcmp(argv[0], "length-starting"))
93 logf(LOG_WARN, "%s: Bad length-starting");
96 res->length_starting = atoi(argv[1]);
98 else if (!strcmp(argv[0], "length-implementation"))
102 logf(LOG_WARN, "%s: Bad length-implentation");
105 res->length_implementation = atoi(argv[1]);
107 else if (!strcmp(argv[0], "future-use"))
111 logf(LOG_WARN, "%s: Bad future-use");
114 strncpy(res->future_use, argv[1], 2);
117 logf(LOG_WARN, "%s: Bad directive '%s'", file, argv[0]);
124 * Locate some data under this node. This routine should handle variants
127 static char *get_data(data1_node *n, int *len)
131 while (n->which != DATA1N_data && n->child)
133 if (n->which != DATA1N_data || n->u.data.what != DATA1I_text)
135 r = "[Structured/included data]";
140 *len = n->u.data.len;
141 return n->u.data.data;
144 static void memint (char *p, int val, int len)
152 sprintf (buf, "%08d", val);
153 memcpy (p, buf+8-len, len);
157 static int nodetomarc(data1_marctab *p, data1_node *n, int selected,
158 char **buf, int *size)
162 int base_address = 25;
165 data1_node *field, *subf;
167 for (field = n->child; field; field = field->next)
169 if (field->which != DATA1N_tag)
171 logf(LOG_WARN, "Malformed field composition for marc output.");
174 if (selected && !field->u.tag.node_selected)
176 len += 4 + p->length_data_entry + p->length_starting
177 + p->length_implementation;
178 base_address += 3 + p->length_data_entry + p->length_starting
179 + p->length_implementation;
180 if (strncmp(field->u.tag.tag, "00", 2))
181 len += p->indicator_length; /* this is fairly bogus */
182 for (subf = field->child; subf; subf = subf->next)
184 if (subf->which != DATA1N_tag)
187 "Malformed subfield composition for marc output.");
190 if (strncmp(field->u.tag.tag, "00", 2))
191 len += p->identifier_length;
192 get_data(subf, &dlen);
198 *buf = xmalloc(*size = len);
199 else if (*size <= len)
200 *buf = xrealloc(*buf, *size = len);
204 memcpy (op+5, p->record_status, 1);
205 memcpy (op+6, p->implementation_codes, 4);
206 memint (op+10, p->indicator_length, 1);
207 memint (op+11, p->identifier_length, 1);
208 memint (op+12, base_address, 5);
209 memcpy (op+17, p->user_systems, 3);
210 memint (op+20, p->length_data_entry, 1);
211 memint (op+21, p->length_starting, 1);
212 memint (op+22, p->length_implementation, 1);
213 memcpy (op+23, p->future_use, 1);
216 data_p = base_address;
218 for (field = n->child; field; field = field->next)
221 if (selected && !field->u.tag.node_selected)
223 if (strncmp(field->u.tag.tag, "00", 2)) /* bogus */
225 memcpy (op + data_p, " ", p->indicator_length);
226 data_p += p->indicator_length;
228 for (subf = field->child; subf; subf = subf->next)
232 if (strncmp(field->u.tag.tag, "00", 2))
234 op[data_p] = ISO2709_IDFS;
235 memcpy (op + data_p+1, subf->u.tag.tag, p->identifier_length-1);
236 data_p += p->identifier_length;
238 data = get_data(subf, &dlen);
239 memcpy (op + data_p, data, dlen);
242 op[data_p++] = ISO2709_FS;
244 memcpy (op + entry_p, field->u.tag.tag, 3);
246 memint (op + entry_p, data_p - data_0, p->length_data_entry);
247 entry_p += p->length_data_entry;
248 memint (op + entry_p, data_0 - base_address, p->length_starting);
249 entry_p += p->length_starting;
250 entry_p += p->length_implementation;
252 op[entry_p++] = ISO2709_FS;
253 assert (entry_p == base_address);
254 op[data_p++] = ISO2709_RS;
255 assert (data_p == len);
259 char *data1_nodetomarc(data1_marctab *p, data1_node *n, int selected, int *len)
261 static char *buf = 0;
264 *len = nodetomarc(p, n, selected, &buf, &size);