/* $Id: d1_marc.c,v 1.6.2.4 2005/02/02 20:26:44 adam Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
Index Data Aps
This file is part of the Zebra server.
Zebra is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Zebra; see the file LICENSE.zebra. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
/* converts data1 tree to ISO2709/MARC record */
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <yaz/oid.h>
#include <yaz/log.h>
#include <yaz/marcdisp.h>
#include <yaz/readconf.h>
#include <yaz/xmalloc.h>
#include <yaz/tpath.h>
#include <data1.h>
data1_marctab *data1_read_marctab (data1_handle dh, const char *file)
{
FILE *f;
NMEM mem = data1_nmem_get (dh);
data1_marctab *res = (data1_marctab *)nmem_malloc(mem, sizeof(*res));
char line[512], *argv[50];
int lineno = 0;
int argc;
if (!(f = data1_path_fopen(dh, file, "r")))
{
yaz_log(LOG_WARN|LOG_ERRNO, "%s", file);
return 0;
}
res->name = 0;
res->reference = VAL_NONE;
res->next = 0;
res->length_data_entry = 4;
res->length_starting = 5;
res->length_implementation = 0;
strcpy(res->future_use, "4");
strcpy(res->record_status, "n");
strcpy(res->implementation_codes, " ");
res->indicator_length = 2;
res->identifier_length = 2;
res->force_indicator_length = -1;
res->force_identifier_length = -1;
strcpy(res->user_systems, "z ");
while ((argc = readconf_line(f, &lineno, line, 512, argv, 50)))
if (!strcmp(*argv, "name"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d:Missing arg for %s", file, lineno,
*argv);
continue;
}
res->name = nmem_strdup(mem, argv[1]);
}
else if (!strcmp(*argv, "reference"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
if ((res->reference = oid_getvalbyname(argv[1])) == VAL_NONE)
{
yaz_log(LOG_WARN, "%s:%d: Unknown tagset reference '%s'",
file, lineno, argv[1]);
continue;
}
}
else if (!strcmp(*argv, "length-data-entry"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
res->length_data_entry = atoi(argv[1]);
}
else if (!strcmp(*argv, "length-starting"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
res->length_starting = atoi(argv[1]);
}
else if (!strcmp(*argv, "length-implementation"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
res->length_implementation = atoi(argv[1]);
}
else if (!strcmp(*argv, "future-use"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
strncpy(res->future_use, argv[1], 2);
}
else if (!strcmp(*argv, "force-indicator-length"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
res->force_indicator_length = atoi(argv[1]);
}
else if (!strcmp(*argv, "force-identifier-length"))
{
if (argc != 2)
{
yaz_log(LOG_WARN, "%s:%d: Missing arg for %s", file, lineno,
*argv);
continue;
}
res->force_identifier_length = atoi(argv[1]);
}
else
yaz_log(LOG_WARN, "%s:%d: Unknown directive '%s'", file, lineno,
*argv);
fclose(f);
return res;
}
/*
* Locate some data under this node. This routine should handle variants
* prettily.
*/
static char *get_data(data1_node *n, int *len, int chop)
{
char *r;
while (n)
{
if (n->which == DATA1N_data)
{
int i;
*len = n->u.data.len;
if (chop)
{
for (i = 0; i<*len; i++)
if (!d1_isspace(n->u.data.data[i]))
break;
while (*len && d1_isspace(n->u.data.data[*len - 1]))
(*len)--;
*len = *len - i;
if (*len > 0)
return n->u.data.data + i;
}
else
if (*len > 0)
return n->u.data.data;
}
if (n->which == DATA1N_tag)
n = n->child;
else if (n->which == DATA1N_data)
n = n->next;
else
break;
}
r = "";
*len = strlen(r);
return r;
}
static void memint (char *p, int val, int len)
{
char buf[10];
if (len == 1)
*p = val + '0';
else
{
sprintf (buf, "%08d", val);
memcpy (p, buf+8-len, len);
}
}
/* check for indicator. non MARCXML only */
static int is_indicator (data1_marctab *p, data1_node *subf)
{
if (p->indicator_length != 2 ||
(subf && subf->which == DATA1N_tag && strlen(subf->u.tag.tag) == 2))
return 1;
return 0;
}
static int nodetomarc(data1_handle dh,
data1_marctab *p, data1_node *n, int selected,
char **buf, int *size)
{
char leader[24];
int len = 26;
int dlen;
int base_address = 25;
int entry_p, data_p;
char *op;
data1_node *field, *subf;
#if 0
data1_pr_tree(dh, n, stdout);
#endif
yaz_log (LOG_DEBUG, "nodetomarc");
memcpy (leader+5, p->record_status, 1);
memcpy (leader+6, p->implementation_codes, 4);
memint (leader+10, p->indicator_length, 1);
memint (leader+11, p->identifier_length, 1);
memcpy (leader+17, p->user_systems, 3);
memint (leader+20, p->length_data_entry, 1);
memint (leader+21, p->length_starting, 1);
memint (leader+22, p->length_implementation, 1);
memcpy (leader+23, p->future_use, 1);
for (field = n->child; field; field = field->next)
{
int control_field = 0; /* 00X fields - usually! */
int marc_xml = 0;
if (field->which != DATA1N_tag)
continue;
if (selected && !field->u.tag.node_selected)
continue;
subf = field->child;
if (!subf)
continue;
if (!yaz_matchstr(field->u.tag.tag, "mc?"))
continue;
else if (!strcmp(field->u.tag.tag, "leader"))
{
int dlen = 0;
char *dbuf = get_data(subf, &dlen, 0);
if (dlen > 24)
dlen = 24;
if (dbuf && dlen > 0)
memcpy (leader, dbuf, dlen);
continue;
}
else if (!strcmp(field->u.tag.tag, "controlfield"))
{
control_field = 1;
marc_xml = 1;
}
else if (!strcmp(field->u.tag.tag, "datafield"))
{
control_field = 0;
marc_xml = 1;
}
else if (subf->which == DATA1N_data)
{
control_field = 1;
marc_xml = 0;
}
else
{
control_field = 0;
marc_xml = 0;
}
len += 4 + p->length_data_entry + p->length_starting
+ p->length_implementation;
base_address += 3 + p->length_data_entry + p->length_starting
+ p->length_implementation;
if (!control_field)
len += p->indicator_length;
/* we'll allow no indicator if length is not 2 */
/* select when old XML format, since indicator is an element */
if (marc_xml == 0 && is_indicator (p, subf))
subf = subf->child;
for (; subf; subf = subf->next)
{
if (!control_field)
len += p->identifier_length;
get_data(subf, &dlen, control_field ? 0 : 1);
len += dlen;
}
}
if (!*buf)
*buf = (char *)xmalloc(*size = len);
else if (*size <= len)
*buf = (char *)xrealloc(*buf, *size = len);
op = *buf;
/* we know the base address now */
memint (leader+12, base_address, 5);
/* copy temp leader to real output buf op */
memcpy (op, leader, 24);
memint (op, len, 5);
entry_p = 24;
data_p = base_address;
for (field = n->child; field; field = field->next)
{
int control_field = 0;
int marc_xml = 0;
const char *tag = 0;
int data_0 = data_p;
char indicator_data[6];
memset (indicator_data, ' ', sizeof(indicator_data)-1);
indicator_data[sizeof(indicator_data)-1] = '\0';
if (field->which != DATA1N_tag)
continue;
if (selected && !field->u.tag.node_selected)
continue;
subf = field->child;
if (!subf)
continue;
if (!yaz_matchstr(field->u.tag.tag, "mc?"))
continue;
else if (!strcmp(field->u.tag.tag, "leader"))
continue;
else if (!strcmp(field->u.tag.tag, "controlfield"))
{
control_field = 1;
marc_xml = 1;
}
else if (!strcmp(field->u.tag.tag, "datafield"))
{
control_field = 0;
marc_xml = 1;
}
else if (subf->which == DATA1N_data)
{
control_field = 1;
marc_xml = 0;
}
else
{
control_field = 0;
marc_xml = 0;
}
if (marc_xml == 0 && is_indicator (p, subf))
{
strncpy(indicator_data, subf->u.tag.tag, sizeof(indicator_data)-1);
subf = subf->child;
}
else if (marc_xml == 1 && !control_field)
{
data1_xattr *xa;
for (xa = field->u.tag.attributes; xa; xa = xa->next)
{
if (!strcmp(xa->name, "ind1"))
indicator_data[0] = xa->value[0];
if (!strcmp(xa->name, "ind2"))
indicator_data[1] = xa->value[0];
if (!strcmp(xa->name, "ind3"))
indicator_data[2] = xa->value[0];
}
}
if (!control_field)
{
memcpy (op + data_p, indicator_data, p->indicator_length);
data_p += p->indicator_length;
}
for (; subf; subf = subf->next)
{
char *data;
if (!control_field)
{
const char *identifier = "a";
if (marc_xml)
{
if (subf->which == DATA1N_tag &&
!strcmp(subf->u.tag.tag, "subfield"))
{
data1_xattr *xa;
for (xa = subf->u.tag.attributes; xa; xa = xa->next)
if (!strcmp(xa->name, "code"))
identifier = xa->value;
}
}
else if (subf->which != DATA1N_tag)
yaz_log(LOG_WARN, "Malformed fields for marc output.");
else
identifier = subf->u.tag.tag;
op[data_p] = ISO2709_IDFS;
memcpy (op + data_p+1, identifier, p->identifier_length-1);
data_p += p->identifier_length;
}
data = get_data(subf, &dlen, control_field ? 0 : 1);
memcpy (op + data_p, data, dlen);
data_p += dlen;
}
op[data_p++] = ISO2709_FS;
if (marc_xml)
{
data1_xattr *xa;
for (xa = field->u.tag.attributes; xa; xa = xa->next)
if (!strcmp(xa->name, "tag"))
tag = xa->value;
}
else
tag = field->u.tag.tag;
if (!tag || strlen(tag) != 3)
tag = "000";
memcpy (op + entry_p, tag, 3);
entry_p += 3;
memint (op + entry_p, data_p - data_0, p->length_data_entry);
entry_p += p->length_data_entry;
memint (op + entry_p, data_0 - base_address, p->length_starting);
entry_p += p->length_starting;
entry_p += p->length_implementation;
}
op[entry_p++] = ISO2709_FS;
assert (entry_p == base_address);
op[data_p++] = ISO2709_RS;
assert (data_p == len);
return len;
}
char *data1_nodetomarc(data1_handle dh, data1_marctab *p, data1_node *n,
int selected, int *len)
{
int *size;
char **buf = data1_get_map_buf (dh, &size);
n = data1_get_root_tag (dh, n);
if (!n)
return 0;
*len = nodetomarc(dh, p, n, selected, buf, size);
return *buf;
}
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